ML compiler closure transformation to Cloudflare workers

task_id: ses_3cfda562fffeB8WVik8CLCQB7D (for resuming to continue this task if needed)

<task_result>
Now I have a complete picture. Here is the full report:

---

## CloudLang Project -- Complete Exploration Report

---

### 1. FULL DIRECTORY TREE (source files only, excluding `.git/`, `.jj/`, `_build/`)

```
cloudlang/
├── .gitignore
├── AGENTS.md                      # Design document / agent guidelines
├── cloudlang.opam                 # Generated OPAM package metadata
├── dune-project                   # Top-level Dune project config
├── dune.lock/                     # Dune lock file (pinned dependency versions)
│   ├── base-unix.base.pkg
│   ├── base.v0.17.3.pkg
│   ├── csexp.1.5.2.pkg
│   ├── dune-configurator.3.21.0.pkg
│   ├── menhirLib.20260122.pkg
│   ├── ocaml-base-compiler.5.4.0.pkg
│   ├── ocaml-compiler.5.4.0.pkg
│   ├── ocaml-config.3.pkg
│   ├── ocaml.5.4.0.pkg
│   ├── ocaml_intrinsics_kernel.v0.17.1.pkg
│   ├── sexplib0.v0.17.0.pkg
│   └── stdio.v0.17.0.pkg
├── bin/
│   ├── dune                       # Executable build config
│   └── main.ml                    # CLI entry point
├── lib/
│   ├── dune                       # Library build config
│   ├── ast.ml                     # AST type definitions
│   ├── ast.mli                    # AST interface
│   ├── ir.ml                      # IR type definitions
│   ├── ir.mli                     # IR interface
│   ├── cloudlang.ml               # Library facade (parse/typecheck/compile/generate)
│   └── cloudlang.mli              # Library public interface
├── test/
│   ├── dune                       # Test build config
│   └── test_cloudlang.ml          # Test file (basic assertions)
└── examples/
    └── hello.cl                   # Example CloudLang program
```

**Notable absences:** No `.ocamlformat` file, no `.claude/` directory, no Menhir grammar files (`.mly`), no ocamllex files (`.mll`), no `parser.ml`, no `typechecker.ml`, no `codegen/` directory. The project is in an early scaffold/skeleton ...

All 6 tools executed successfully.

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/home/jm/data/ai/cloudlang/AGENTS.md

No files found

<file>
00001| type worker = {
00002|   name : string;
00003|   script : string;
00004|   routes : string list;
00005| }
00006| 
00007| type durable_object = {
00008|   class_name : string;
00009|   script : string;
00010| }
00011| 
00012| type r2_bucket = {
00013|   name : string;
00014|   location : string;
00015| }
00016| 
00017| type d1_database = {
00018|   name : string;
00019|   schema : string;
00020| }
00021| 
00022| type resource =
00023|   | Worker of worker
00024|   | DurableObject of durable_object
00025|   | R2Bucket of r2_bucket
00026|   | D1Database of d1_database
00027| 
00028| type config = resource list
00029| 

(End of file - total 29 lines)
</file>

<file>
00001| type loc = { line : int; column : int }
00002| 
00003| type ty =
00004|   | TInt
00005|   | TBool
00006|   | TString
00007|   | TArrow of ty * ty
00008|   | TUnit
00009| 
00010| type expr =
00011|   | Var of string * loc
00012|   | Int of int * loc
00013|   | Bool of bool * loc
00014|   | String of string * loc
00015|   | Lambda of string * ty * expr * loc
00016|   | App of expr * expr * loc
00017|   | Let of string * expr * expr * loc
00018|   | PrimOp of string * expr list * loc
00019| 
00020| type stmt =
00021|   | Define of string * expr * loc
00022|   | Export of string * loc
00023| 
00024| type program = stmt list
00025| 

(End of file - total 25 lines)
</file>

<file>
00001| module Ast = Ast
00002| module Ir = Ir
00003| 
00004| type error = string
00005| 
00006| let parse (_s : string) : (Ast.program, error) result =
00007|   Ok []  (* TODO: implement actual parser *)
00008| 
00009| let typecheck (p : Ast.program) : (Ast.program, error) result =
00010|   Ok p   (* TODO: implement type checker *)
00011| 
00012| let compile (_p : Ast.program) : (Ir.config, error) result =
00013|   Ok []  (* TODO: implement compiler *)
00014| 
00015| let generate (_c : Ir.config) : string =
00016|   "{}"   (* TODO: implement JSON/TS config generator *)
00017| 

(End of file - total 17 lines)
</file>

<file>
00001| module Ast : sig
00002|   type loc = { line : int; column : int }
00003| 
00004|   type ty =
00005|     | TInt
00006|     | TBool
00007|     | TString
00008|     | TArrow of ty * ty
00009|     | TUnit
00010| 
00011|   type expr =
00012|     | Var of string * loc
00013|     | Int of int * loc
00014|     | Bool of bool * loc
00015|     | String of string * loc
00016|     | Lambda of string * ty * expr * loc
00017|     | App of expr * expr * loc
00018|     | Let of string * expr * expr * loc
00019|     | PrimOp of string * expr list * loc
00020| 
00021|   type stmt =
00022|     | Define of string * expr * loc
00023|     | Export of string * loc
00024| 
00025|   type program = stmt list
00026| end
00027| 
00028| module Ir : sig
00029|   type worker = {
00030|     name : string;
00031|     script : string;
00032|     routes : string list;
00033|   }
00034| 
00035|   type durable_object = {
00036|     class_name : string;
00037|     script : string;
00038|   }
00039| 
00040|   type r2_bucket = {
00041|     name : string;
00042|     location : string;
00043|   }
00044| 
00045|   type d1_database = {
00046|     name : string;
00047|     schema : string;
00048|   }
00049| 
00050|   type resource =
00051|     | Worker of worker
00052|     | DurableObject of durable_object
00053|     | R2Bucket of r2_bucket
00054|     | D1Database of d1_database
00055| 
00056|   type config = resource list
00057| end
00058| 
00059| type error = string
00060| 
00061| val parse : string -> (Ast.program, error) result
00062| val typecheck : Ast.program -> (Ast.program, error) result
00063| val compile : Ast.program -> (Ir.config, error) result
00064| val generate : Ir.config -> string
00065| 

(End of file - total 65 lines)
</file>

User has answered your questions: "What level of complexity should the test case demonstrate? I see a few options for what 'closures transforming to Worker configs + bindings' means:"="Medium: closure + resource capture → Worker + binding". You can now continue with the user's answers in mind.

User has answered your questions: "The current AST doesn't have constructs for Cloudflare resources (D1, KV, R2). To demonstrate closure capture of a resource becoming a binding, we need to decide how resources enter the language. What approach do you prefer?"="PrimOp-based resources", "For the test case structure, should the test construct the AST directly (like the existing tests do), or should it also include the expected CloudLang source syntax even though the parser isn't implemented yet?"="Source + AST test". You can now continue with the user's answers in mind.

[
  {
    "id": "1",
    "content": "Update IR types: add binding type and bindings field to worker",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "2",
    "content": "Update IR interface (ir.mli) to match",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "3",
    "content": "Implement compile function (free var analysis + resource detection)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "4",
    "content": "Implement generate function (TypeScript + config output)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "5",
    "content": "Update cloudlang.mli if needed",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "6",
    "content": "Update existing test to accommodate IR changes",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "7",
    "content": "Add new closure→Worker+binding test case",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "8",
    "content": "Add example source file (closure_worker.cl)",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "9",
    "content": "Build and run tests to verify",
    "status": "pending",
    "priority": "high"
  }
]

[
  {
    "id": "1",
    "content": "Update IR types: add binding type and bindings field to worker",
    "status": "in_progress",
    "priority": "high"
  },
  {
    "id": "2",
    "content": "Update IR interface (ir.mli) to match",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "3",
    "content": "Implement compile function (free var analysis + resource detection)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "4",
    "content": "Implement generate function (TypeScript + config output)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "5",
    "content": "Update cloudlang.mli if needed",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "6",
    "content": "Update existing test to accommodate IR changes",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "7",
    "content": "Add new closure→Worker+binding test case",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "8",
    "content": "Add example source file (closure_worker.cl)",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "9",
    "content": "Build and run tests to verify",
    "status": "pending",
    "priority": "high"
  }
]

Edit applied successfully.

[
  {
    "id": "1",
    "content": "Update IR types: add binding type and bindings field to worker",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "2",
    "content": "Update IR interface (ir.mli) to match",
    "status": "in_progress",
    "priority": "high"
  },
  {
    "id": "3",
    "content": "Implement compile function (free var analysis + resource detection)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "4",
    "content": "Implement generate function (TypeScript + config output)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "5",
    "content": "Update cloudlang.mli if needed",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "6",
    "content": "Update existing test to accommodate IR changes",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "7",
    "content": "Add new closure→Worker+binding test case",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "8",
    "content": "Add example source file (closure_worker.cl)",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "9",
    "content": "Build and run tests to verify",
    "status": "pending",
    "priority": "high"
  }
]

<file>
00001| 
00002| type worker = {
00003|   name : string;
00004|   script : string;
00005|   routes : string list;
00006| }
00007| 
00008| type durable_object = {
00009|   class_name : string;
00010|   script : string;
00011| }
00012| 
00013| type r2_bucket = {
00014|   name : string;
00015|   location : string;
00016| }
00017| 
00018| type d1_database = {
00019|   name : string;
00020|   schema : string;
00021| }
00022| 
00023| type resource =
00024|   | Worker of worker
00025|   | DurableObject of durable_object
00026|   | R2Bucket of r2_bucket
00027|   | D1Database of d1_database
00028| 
00029| type config = resource list
00030| 

(End of file - total 30 lines)
</file>

Edit applied successfully.

[
  {
    "id": "1",
    "content": "Update IR types: add binding type and bindings field to worker",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "2",
    "content": "Update IR interface (ir.mli) to match",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "3",
    "content": "Implement compile function (free var analysis + resource detection)",
    "status": "in_progress",
    "priority": "high"
  },
  {
    "id": "4",
    "content": "Implement generate function (TypeScript + config output)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "5",
    "content": "Update cloudlang.mli if needed",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "6",
    "content": "Update existing test to accommodate IR changes",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "7",
    "content": "Add new closure→Worker+binding test case",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "8",
    "content": "Add example source file (closure_worker.cl)",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "9",
    "content": "Build and run tests to verify",
    "status": "pending",
    "priority": "high"
  }
]

<file>
00001| module Ast = Ast
00002| module Ir = Ir
00003| 
00004| type error = string
00005| 
00006| let parse (_s : string) : (Ast.program, error) result =
00007|   Ok []  (* TODO: implement actual parser *)
00008| 
00009| let typecheck (p : Ast.program) : (Ast.program, error) result =
00010|   Ok p   (* TODO: implement type checker *)
00011| 
00012| let compile (_p : Ast.program) : (Ir.config, error) result =
00013|   Ok []  (* TODO: implement compiler *)
00014| 
00015| let generate (_c : Ir.config) : string =
00016|   "{}"   (* TODO: implement JSON/TS config generator *)
00017| 

(End of file - total 17 lines)
</file>

Edit applied successfully.

[
  {
    "id": "1",
    "content": "Update IR types: add binding type and bindings field to worker",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "2",
    "content": "Update IR interface (ir.mli) to match",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "3",
    "content": "Implement compile function (free var analysis + resource detection)",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "4",
    "content": "Implement generate function (TypeScript + config output)",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "5",
    "content": "Update cloudlang.mli to expose binding type",
    "status": "in_progress",
    "priority": "medium"
  },
  {
    "id": "6",
    "content": "Update existing test to accommodate IR changes",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "7",
    "content": "Add new closure→Worker+binding test case",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "8",
    "content": "Add example source file (closure_worker.cl)",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "9",
    "content": "Build and run tests to verify",
    "status": "pending",
    "priority": "high"
  }
]

Edit applied successfully.

[
  {
    "id": "1",
    "content": "Update IR types: add binding type and bindings field to worker",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "2",
    "content": "Update IR interface (ir.mli) to match",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "3",
    "content": "Implement compile function (free var analysis + resource detection)",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "4",
    "content": "Implement generate function (TypeScript + config output)",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "5",
    "content": "Update cloudlang.mli to expose binding type",
    "status": "completed",
    "priority": "medium"
  },
  {
    "id": "6",
    "content": "Update existing test to accommodate IR changes",
    "status": "in_progress",
    "priority": "high"
  },
  {
    "id": "7",
    "content": "Add new closure→Worker+binding test case",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "8",
    "content": "Add example source file (closure_worker.cl)",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "9",
    "content": "Build and run tests to verify",
    "status": "pending",
    "priority": "high"
  }
]

<file>
00001| let test_ast_construction () =
00002|   let loc = Cloudlang.Ast.{ line = 1; column = 1 } in
00003|   let expr = Cloudlang.Ast.Int (42, loc) in
00004|   match expr with
00005|   | Cloudlang.Ast.Int (n, _) -> assert (n = 42)
00006|   | _ -> assert false
00007| 
00008| let test_ir_construction () =
00009|   let worker = Cloudlang.Ir.{ 
00010|     name = "test-worker"; 
00011|     script = "export default {}";
00012|     routes = ["example.com/*"]
00013|   } in
00014|   assert (worker.name = "test-worker")
00015| 
00016| let test_parse () =
00017|   match Cloudlang.parse "some source" with
00018|   | Ok prog -> assert (prog = [])
00019|   | Error _ -> assert false
00020| 
00021| let test_generate () =
00022|   let output = Cloudlang.generate [] in
00023|   assert (output = "{}")
00024| 
00025| let () =
00026|   test_ast_construction ();
00027|   test_ir_construction ();
00028|   test_parse ();
00029|   test_generate ();
00030|   print_endline "All tests passed!"
00031| 

(End of file - total 31 lines)
</file>

Edit applied successfully.

[
  {
    "id": "1",
    "content": "Update IR types: add binding type and bindings field to worker",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "2",
    "content": "Update IR interface (ir.mli) to match",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "3",
    "content": "Implement compile function (free var analysis + resource detection)",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "4",
    "content": "Implement generate function (TypeScript + config output)",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "5",
    "content": "Update cloudlang.mli to expose binding type",
    "status": "completed",
    "priority": "medium"
  },
  {
    "id": "6",
    "content": "Update existing test to accommodate IR changes",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "7",
    "content": "Add new closure→Worker+binding test case",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "8",
    "content": "Add example source file (closure_worker.cl)",
    "status": "in_progress",
    "priority": "medium"
  },
  {
    "id": "9",
    "content": "Build and run tests to verify",
    "status": "pending",
    "priority": "high"
  }
]

<file>
00001| # Placeholder CloudLang example
00002| define hello = "Hello, Cloudflare!"
00003| export hello
00004| 

(End of file - total 4 lines)
</file>

[
  {
    "id": "1",
    "content": "Update IR types: add binding type and bindings field to worker",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "2",
    "content": "Update IR interface (ir.mli) to match",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "3",
    "content": "Implement compile function (free var analysis + resource detection)",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "4",
    "content": "Implement generate function (TypeScript + config output)",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "5",
    "content": "Update cloudlang.mli to expose binding type",
    "status": "completed",
    "priority": "medium"
  },
  {
    "id": "6",
    "content": "Update existing test to accommodate IR changes",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "7",
    "content": "Add new closure→Worker+binding test case",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "8",
    "content": "Add example source file (closure_worker.cl)",
    "status": "completed",
    "priority": "medium"
  },
  {
    "id": "9",
    "content": "Build and run tests to verify",
    "status": "in_progress",
    "priority": "high"
  }
]

=== Closure -> Worker+Binding Test Output ===

--- D1 Database: users-db ---
Schema: CREATE TABLE users (id INT, name TEXT)

--- Worker: get_user ---
== wrangler.toml ==
{
  "name": "get_user",
  "d1_databases": [
    { "binding": "USERS_DB", "database_id": "users-db" }
  ],
  "routes": ["/get_user"]
}

== script ==
interface Env {
  USERS_DB: D1Database;
}

export default {
  async fetch(request: Request, env: Env): Promise<Response> {
  const users_db = env.USERS_DB;

  // TODO: implement get_user handler logic
  return new Response("ok");
  }
};

All tests passed!

File "dune.lock/dune-configurator.3.21.0.pkg", line 10, characters 10-14:
10 |      (run dune build -p %{pkg-self:name} -j %{jobs} @install))))))
               ^^^^
Error: Logs for package dune-configurator
File "dune-project", line 1, characters 11-15:
1 | (lang dune 3.21)
               ^^^^
Error: Version 3.21 of the dune language is not supported.
Supported versions of this extension in version 3.21 of the dune language:
- 1.0 to 1.12
- 2.0 to 2.9
- 3.0 to 3.20

[
  {
    "id": "1",
    "content": "Update IR types: add binding type and bindings field to worker",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "2",
    "content": "Update IR interface (ir.mli) to match",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "3",
    "content": "Implement compile function (free var analysis + resource detection)",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "4",
    "content": "Implement generate function (TypeScript + config output)",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "5",
    "content": "Update cloudlang.mli to expose binding type",
    "status": "completed",
    "priority": "medium"
  },
  {
    "id": "6",
    "content": "Update existing test to accommodate IR changes",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "7",
    "content": "Add new closure→Worker+binding test case",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "8",
    "content": "Add example source file (closure_worker.cl)",
    "status": "completed",
    "priority": "medium"
  },
  {
    "id": "9",
    "content": "Build and run tests to verify",
    "status": "completed",
    "priority": "high"
  }
]

task_id: ses_3cfc7f706fferMiOEg849En7bD (for resuming to continue this task if needed)

<task_result>

</task_result>

task_id: ses_3cfc7cfbbffexP7bmyQ0TObp4O (for resuming to continue this task if needed)

<task_result>

</task_result>

All 6 tools executed successfully.

Keep using the batch tool for optimal performance in your next response!

<file>
00001| type loc = { line : int; column : int }
00002| 
00003| type ty =
00004|   | TInt
00005|   | TBool
00006|   | TString
00007|   | TArrow of ty * ty
00008|   | TUnit
00009| 
00010| type expr =
00011|   | Var of string * loc
00012|   | Int of int * loc
00013|   | Bool of bool * loc
00014|   | String of string * loc
00015|   | Lambda of string * ty * expr * loc
00016|   | App of expr * expr * loc
00017|   | Let of string * expr * expr * loc
00018|   | PrimOp of string * expr list * loc
00019| 
00020| type stmt =
00021|   | Define of string * expr * loc
00022|   | Export of string * loc
00023| 
00024| type program = stmt list
00025| 

(End of file - total 25 lines)
</file>

<file>
00001| type binding =
00002|   | D1Binding of { name : string; database_id : string }
00003|   | KVBinding of { name : string; namespace_id : string }
00004|   | R2Binding of { name : string; bucket_name : string }
00005|   | ServiceBinding of { name : string; service : string }
00006| 
00007| type worker = {
00008|   name : string;
00009|   script : string;
00010|   bindings : binding list;
00011|   routes : string list;
00012| }
00013| 
00014| type durable_object = {
00015|   class_name : string;
00016|   script : string;
00017| }
00018| 
00019| type r2_bucket = {
00020|   name : string;
00021|   location : string;
00022| }
00023| 
00024| type d1_database = {
00025|   name : string;
00026|   schema : string;
00027| }
00028| 
00029| type resource =
00030|   | Worker of worker
00031|   | DurableObject of durable_object
00032|   | R2Bucket of r2_bucket
00033|   | D1Database of d1_database
00034| 
00035| type config = resource list
00036| 

(End of file - total 36 lines)
</file>

<file>
00001| module Ast = Ast
00002| module Ir = Ir
00003| 
00004| type error = string
00005| 
00006| let parse (_s : string) : (Ast.program, error) result =
00007|   Ok [] (* TODO: implement actual parser *)
00008| 
00009| let typecheck (p : Ast.program) : (Ast.program, error) result =
00010|   Ok p (* TODO: implement type checker *)
00011| 
00012| (* --- Compilation: AST -> IR --- *)
00013| 
00014| (** Environment entry: tracks what each name binds to during compilation. *)
00015| type env_entry =
00016|   | Resource of Ir.resource
00017|   | Value
00018| 
00019| (** Collect free variables in an expression, excluding [bound] names. *)
00020| let rec free_vars (bound : string list) (expr : Ast.expr) : string list =
00021|   match expr with
00022|   | Ast.Var (name, _) ->
00023|     if List.mem name bound then [] else [ name ]
00024|   | Ast.Int _ | Ast.Bool _ | Ast.String _ -> []
00025|   | Ast.Lambda (param, _ty, body, _) -> free_vars (param :: bound) body
00026|   | Ast.App (fn, arg, _) -> free_vars bound fn @ free_vars bound arg
00027|   | Ast.Let (name, rhs, body, _) ->
00028|     free_vars bound rhs @ free_vars (name :: bound) body
00029|   | Ast.PrimOp (_, args, _) -> List.concat_map (free_vars bound) args
00030| 
00031| (** Deduplicate a string list, preserving first occurrence order. *)
00032| let dedup xs =
00033|   List.fold_left
00034|     (fun acc x -> if List.mem x acc then acc else acc @ [ x ])
00035|     [] xs
00036| 
00037| (** Convert a CloudLang name to a SCREAMING_SNAKE_CASE binding name.
00038|     e.g. "users_db" -> "USERS_DB" *)
00039| let binding_name_of name = String.uppercase_ascii name
00040| 
00041| (** Given a resource, produce the corresponding IR binding for a Worker env. *)
00042| let binding_of_resource (var_name : string) (res : Ir.resource) :
00043|     Ir.binding option =
00044|   match res with
00045|   | Ir.D1Database db ->
00046|     Some (Ir.D1Binding { name = binding_name_of var_name; database_id = db.name })
00047|   | Ir.R...

<file>
00001| let test_ast_construction () =
00002|   let loc = Cloudlang.Ast.{ line = 1; column = 1 } in
00003|   let expr = Cloudlang.Ast.Int (42, loc) in
00004|   match expr with
00005|   | Cloudlang.Ast.Int (n, _) -> assert (n = 42)
00006|   | _ -> assert false
00007| 
00008| let test_ir_construction () =
00009|   let worker =
00010|     Cloudlang.Ir.
00011|       {
00012|         name = "test-worker";
00013|         script = "export default {}";
00014|         bindings = [];
00015|         routes = [ "example.com/*" ];
00016|       }
00017|   in
00018|   assert (worker.name = "test-worker")
00019| 
00020| let test_parse () =
00021|   match Cloudlang.parse "some source" with
00022|   | Ok prog -> assert (prog = [])
00023|   | Error _ -> assert false
00024| 
00025| let test_generate () =
00026|   let output = Cloudlang.generate [] in
00027|   assert (output = "{}")
00028| 
00029| (* ------------------------------------------------------------------ *)
00030| (* Test: closure capturing a D1 resource -> Worker with D1 binding    *)
00031| (* ------------------------------------------------------------------ *)
00032| (*
00033|  * CloudLang source (parser not yet implemented):
00034|  *
00035|  *   define users_db = d1 "users-db" "CREATE TABLE users (id INT, name TEXT)"
00036|  *
00037|  *   define get_user = \id : string ->
00038|  *     query users_db "SELECT * FROM users WHERE id = ?" id
00039|  *
00040|  *   export get_user
00041|  *
00042|  * Expected transformation:
00043|  *   - `users_db` is recognized as a D1 resource via PrimOp "d1"
00044|  *   - `get_user` is a closure whose body references `users_db` (a free variable)
00045|  *   - The compiler produces:
00046|  *     1. A D1Database IR resource for users_db
00047|  *     2. A Worker IR resource for get_user with:
00048|  *        - Generated TypeScript fetch handler script
00049|  *        - A D1 binding wired into the Worker's env
00050|  *     3. The export causes a route to be attached to the Worker
...

<file>
00001| module Ast : sig
00002|   type loc = { line : int; column : int }
00003| 
00004|   type ty =
00005|     | TInt
00006|     | TBool
00007|     | TString
00008|     | TArrow of ty * ty
00009|     | TUnit
00010| 
00011|   type expr =
00012|     | Var of string * loc
00013|     | Int of int * loc
00014|     | Bool of bool * loc
00015|     | String of string * loc
00016|     | Lambda of string * ty * expr * loc
00017|     | App of expr * expr * loc
00018|     | Let of string * expr * expr * loc
00019|     | PrimOp of string * expr list * loc
00020| 
00021|   type stmt =
00022|     | Define of string * expr * loc
00023|     | Export of string * loc
00024| 
00025|   type program = stmt list
00026| end
00027| 
00028| module Ir : sig
00029|   type binding =
00030|     | D1Binding of { name : string; database_id : string }
00031|     | KVBinding of { name : string; namespace_id : string }
00032|     | R2Binding of { name : string; bucket_name : string }
00033|     | ServiceBinding of { name : string; service : string }
00034| 
00035|   type worker = {
00036|     name : string;
00037|     script : string;
00038|     bindings : binding list;
00039|     routes : string list;
00040|   }
00041| 
00042|   type durable_object = {
00043|     class_name : string;
00044|     script : string;
00045|   }
00046| 
00047|   type r2_bucket = {
00048|     name : string;
00049|     location : string;
00050|   }
00051| 
00052|   type d1_database = {
00053|     name : string;
00054|     schema : string;
00055|   }
00056| 
00057|   type resource =
00058|     | Worker of worker
00059|     | DurableObject of durable_object
00060|     | R2Bucket of r2_bucket
00061|     | D1Database of d1_database
00062| 
00063|   type config = resource list
00064| end
00065| 
00066| type error = string
00067| 
00068| val parse : string -> (Ast.program, error) result
00069| val typecheck : Ast.program -> (Ast.program, error) result
00070| val compile : Ast.program -> (Ir.config, error) result
00071| val ...

<file>
00001| type loc = { line : int; column : int }
00002| 
00003| type ty =
00004|   | TInt
00005|   | TBool
00006|   | TString
00007|   | TArrow of ty * ty
00008|   | TUnit
00009| 
00010| type expr =
00011|   | Var of string * loc
00012|   | Int of int * loc
00013|   | Bool of bool * loc
00014|   | String of string * loc
00015|   | Lambda of string * ty * expr * loc
00016|   | App of expr * expr * loc
00017|   | Let of string * expr * expr * loc
00018|   | PrimOp of string * expr list * loc
00019| 
00020| type stmt =
00021|   | Define of string * expr * loc
00022|   | Export of string * loc
00023| 
00024| type program = stmt list
00025| 

(End of file - total 25 lines)
</file>

<skill_content name="effects">
# Skill: effects

# OCaml 5 Effects Design

## Core Principle

**Effects for control flow, exceptions for errors.**

| Concern                    | Mechanism  | Example                                 |
| -------------------------- | ---------- | --------------------------------------- |
| Suspension (wait for data) | Effects    | `perform Block`, `perform Yield`        |
| Error (EOF, malformed)     | Exceptions | `raise End_of_file`, `Invalid_argument` |

## Layered Design

Effects should be handled at the **source level**, not in protocol parsers:

```
Application
    ↓
Protocol parser (Binary.Reader, Cbor, etc.)
    ↓  raises exceptions on EOF/error
bytesrw (effect-agnostic)
    ↓  just calls pull function
Source (Eio flow, affect fd, Unix fd)
    ↓  performs effects for suspension
Effect handler (Eio scheduler, affect runtime)
```

### Why This Matters

- **Parsers stay pure**: No effect dependencies, easy to test
- **Sources control blocking**: Handler decides wait vs fail vs timeout
- **Composability**: Same parser works with any effect system

## Effect Libraries

### Eio

Effects are internal to the scheduler. User code looks synchronous:

```ocaml
(* Reading blocks via internal effects *)
let data = Eio.Flow.read flow buf
```

### affect

Explicit effects for fiber scheduling:

```ocaml
type _ Effect.t +=
| Block : 'a block -> 'a Effect.t   (* suspension *)
| Await : await -> unit Effect.t    (* wait on fibers *)
| Yield : unit Effect.t             (* cooperative yield *)

(* Block has callbacks for scheduler integration *)
type 'a block = {
  block : handle -> unit;      (* register blocked fiber *)
  cancel : handle -> bool;     (* handle cancellation *)
  return : handle -> 'a        (* extract result *)
}
```

### bytesrw

Effect-agnostic streaming. The pull function you provide can perform any effects:

```ocaml
(* bytesrw just calls your function *)
let reader = Bytesrw.Bytes.Reader.make my_pull_fn

(* If my_pull_fn per...

## Securely access and upload assets with Cloudflare R2
https://developers.cloudflare.com/workers/tutorials/upload-assets-with-r2/

DarkLightAuto
## Tags
 TypeScript 
## Was this helpful? Edit Issue 
Copy page
# Securely access and upload assets with Cloudflare R2 **Last reviewed:**over 2 years ago This tutorial explains how to create a TypeScript-based Cloudflare Workers project that can securely access files from and upload files to a Cloudflare R2 bucket. Cloudflare R2 allows developers to store large amounts of unstructured data without the costly egress bandwidth fees associated with typical cloud storage services. ## Prerequisites
 
To continue:
1. Sign up ... to create a new Worker. To do this, open a terminal window and run the following command: * npm 
* [yarn]<web_link ... pnpm 
Terminal window
```
` npmcreatecloudflare@latest--upload-r2-assets
`
```
Terminal ... 
`
```
For setup, select the following options: * For*What would you like to start with?*, choose`Hello World example`. * For*Which template would you like to use?*, choose`Worker only`. * For*Which language do you want to use?*, choose`TypeScript`. * For* ... r2-assets
`
```
## Create an R2 bucket 
Before you integrate R2 bucket access into your Worker application, an R2 bucket must be created: Terminal window
```
`
npxwranglerr2bucketcreate< ... file: * wrangler.jsonc 
* [wrangler. ... 2 bucket
 After setting up an R2 bucket binding, you will implement the functionalities for the Worker to interact with the R2 bucket, such as, fetching files from the bucket and uploading files to the bucket. To fetch files from the R2 bucket, use the`BINDING.get`function. In the below example, the R2 bucket binding is called`MY\_BUCKET`. Using`.get(key)`, you can retrieve an asset based on the URL pathname as the key. In this example, the URL pathname is`/image.png`, and the asset key is`image.png`. TypeScript
```
`
interfaceEnv{
MY\_BUCKET:R2Bucket;
}
exportdefault{
asyncfetch(request,env):Promise<Response\>{ /...

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<file>
00001| type loc = { line : int; column : int }
00002| 
00003| type ty =
00004|   | TInt
00005|   | TBool
00006|   | TString
00007|   | TArrow of ty * ty
00008|   | TUnit
00009| 
00010| type expr =
00011|   | Var of string * loc
00012|   | Int of int * loc
00013|   | Bool of bool * loc
00014|   | String of string * loc
00015|   | Lambda of string * ty * expr * loc
00016|   | App of expr * expr * loc
00017|   | Let of string * expr * expr * loc
00018|   | PrimOp of string * expr list * loc
00019| 
00020| type stmt =
00021|   | Define of string * expr * loc
00022|   | Export of string * loc
00023| 
00024| type program = stmt list
00025| 

(End of file - total 25 lines)
</file>

<file>
00001| type binding =
00002|   | D1Binding of { name : string; database_id : string }
00003|   | KVBinding of { name : string; namespace_id : string }
00004|   | R2Binding of { name : string; bucket_name : string }
00005|   | ServiceBinding of { name : string; service : string }
00006| 
00007| type worker = {
00008|   name : string;
00009|   script : string;
00010|   bindings : binding list;
00011|   routes : string list;
00012| }
00013| 
00014| type durable_object = {
00015|   class_name : string;
00016|   script : string;
00017| }
00018| 
00019| type r2_bucket = {
00020|   name : string;
00021|   location : string;
00022| }
00023| 
00024| type d1_database = {
00025|   name : string;
00026|   schema : string;
00027| }
00028| 
00029| type resource =
00030|   | Worker of worker
00031|   | DurableObject of durable_object
00032|   | R2Bucket of r2_bucket
00033|   | D1Database of d1_database
00034| 
00035| type config = resource list
00036| 

(End of file - total 36 lines)
</file>

<file>
00001| module Ast = Ast
00002| module Ir = Ir
00003| 
00004| type error = string
00005| 
00006| let parse (_s : string) : (Ast.program, error) result =
00007|   Ok [] (* TODO: implement actual parser *)
00008| 
00009| let typecheck (p : Ast.program) : (Ast.program, error) result =
00010|   Ok p (* TODO: implement type checker *)
00011| 
00012| (* --- Compilation: AST -> IR --- *)
00013| 
00014| (** Environment entry: tracks what each name binds to during compilation. *)
00015| type env_entry =
00016|   | Resource of Ir.resource
00017|   | Value
00018| 
00019| (** Collect free variables in an expression, excluding [bound] names. *)
00020| let rec free_vars (bound : string list) (expr : Ast.expr) : string list =
00021|   match expr with
00022|   | Ast.Var (name, _) ->
00023|     if List.mem name bound then [] else [ name ]
00024|   | Ast.Int _ | Ast.Bool _ | Ast.String _ -> []
00025|   | Ast.Lambda (param, _ty, body, _) -> free_vars (param :: bound) body
00026|   | Ast.App (fn, arg, _) -> free_vars bound fn @ free_vars bound arg
00027|   | Ast.Let (name, rhs, body, _) ->
00028|     free_vars bound rhs @ free_vars (name :: bound) body
00029|   | Ast.PrimOp (_, args, _) -> List.concat_map (free_vars bound) args
00030| 
00031| (** Deduplicate a string list, preserving first occurrence order. *)
00032| let dedup xs =
00033|   List.fold_left
00034|     (fun acc x -> if List.mem x acc then acc else acc @ [ x ])
00035|     [] xs
00036| 
00037| (** Convert a CloudLang name to a SCREAMING_SNAKE_CASE binding name.
00038|     e.g. "users_db" -> "USERS_DB" *)
00039| let binding_name_of name = String.uppercase_ascii name
00040| 
00041| (** Given a resource, produce the corresponding IR binding for a Worker env. *)
00042| let binding_of_resource (var_name : string) (res : Ir.resource) :
00043|     Ir.binding option =
00044|   match res with
00045|   | Ir.D1Database db ->
00046|     Some (Ir.D1Binding { name = binding_name_of var_name; database_id = db.name })
00047|   | Ir.R...

<file>
00001| module Ast : sig
00002|   type loc = { line : int; column : int }
00003| 
00004|   type ty =
00005|     | TInt
00006|     | TBool
00007|     | TString
00008|     | TArrow of ty * ty
00009|     | TUnit
00010| 
00011|   type expr =
00012|     | Var of string * loc
00013|     | Int of int * loc
00014|     | Bool of bool * loc
00015|     | String of string * loc
00016|     | Lambda of string * ty * expr * loc
00017|     | App of expr * expr * loc
00018|     | Let of string * expr * expr * loc
00019|     | PrimOp of string * expr list * loc
00020| 
00021|   type stmt =
00022|     | Define of string * expr * loc
00023|     | Export of string * loc
00024| 
00025|   type program = stmt list
00026| end
00027| 
00028| module Ir : sig
00029|   type binding =
00030|     | D1Binding of { name : string; database_id : string }
00031|     | KVBinding of { name : string; namespace_id : string }
00032|     | R2Binding of { name : string; bucket_name : string }
00033|     | ServiceBinding of { name : string; service : string }
00034| 
00035|   type worker = {
00036|     name : string;
00037|     script : string;
00038|     bindings : binding list;
00039|     routes : string list;
00040|   }
00041| 
00042|   type durable_object = {
00043|     class_name : string;
00044|     script : string;
00045|   }
00046| 
00047|   type r2_bucket = {
00048|     name : string;
00049|     location : string;
00050|   }
00051| 
00052|   type d1_database = {
00053|     name : string;
00054|     schema : string;
00055|   }
00056| 
00057|   type resource =
00058|     | Worker of worker
00059|     | DurableObject of durable_object
00060|     | R2Bucket of r2_bucket
00061|     | D1Database of d1_database
00062| 
00063|   type config = resource list
00064| end
00065| 
00066| type error = string
00067| 
00068| val parse : string -> (Ast.program, error) result
00069| val typecheck : Ast.program -> (Ast.program, error) result
00070| val compile : Ast.program -> (Ir.config, error) result
00071| val ...

<file>
00001| let test_ast_construction () =
00002|   let loc = Cloudlang.Ast.{ line = 1; column = 1 } in
00003|   let expr = Cloudlang.Ast.Int (42, loc) in
00004|   match expr with
00005|   | Cloudlang.Ast.Int (n, _) -> assert (n = 42)
00006|   | _ -> assert false
00007| 
00008| let test_ir_construction () =
00009|   let worker =
00010|     Cloudlang.Ir.
00011|       {
00012|         name = "test-worker";
00013|         script = "export default {}";
00014|         bindings = [];
00015|         routes = [ "example.com/*" ];
00016|       }
00017|   in
00018|   assert (worker.name = "test-worker")
00019| 
00020| let test_parse () =
00021|   match Cloudlang.parse "some source" with
00022|   | Ok prog -> assert (prog = [])
00023|   | Error _ -> assert false
00024| 
00025| let test_generate () =
00026|   let output = Cloudlang.generate [] in
00027|   assert (output = "{}")
00028| 
00029| (* ------------------------------------------------------------------ *)
00030| (* Test: closure capturing a D1 resource -> Worker with D1 binding    *)
00031| (* ------------------------------------------------------------------ *)
00032| (*
00033|  * CloudLang source (parser not yet implemented):
00034|  *
00035|  *   define users_db = d1 "users-db" "CREATE TABLE users (id INT, name TEXT)"
00036|  *
00037|  *   define get_user = \id : string ->
00038|  *     query users_db "SELECT * FROM users WHERE id = ?" id
00039|  *
00040|  *   export get_user
00041|  *
00042|  * Expected transformation:
00043|  *   - `users_db` is recognized as a D1 resource via PrimOp "d1"
00044|  *   - `get_user` is a closure whose body references `users_db` (a free variable)
00045|  *   - The compiler produces:
00046|  *     1. A D1Database IR resource for users_db
00047|  *     2. A Worker IR resource for get_user with:
00048|  *        - Generated TypeScript fetch handler script
00049|  *        - A D1 binding wired into the Worker's env
00050|  *     3. The export causes a route to be attached to the Worker
...

<file>
00001| # Example: Closure capturing a D1 resource -> Worker with D1 binding
00002| #
00003| # This demonstrates the core CloudLang transformation:
00004| #   1. A D1 database resource is defined via the `d1` primitive
00005| #   2. A closure (lambda) captures that resource as a free variable
00006| #   3. The compiler detects the capture and generates:
00007| #      - A D1Database IR resource
00008| #      - A Worker IR resource with a D1 binding in its env
00009| #      - TypeScript Worker script that accesses env.USERS_DB
00010| #   4. Exporting the closure attaches a route to the Worker
00011| 
00012| define users_db = d1 "users-db" "CREATE TABLE users (id INT, name TEXT)"
00013| 
00014| define get_user = \id : string ->
00015|   query users_db "SELECT * FROM users WHERE id = ?" id
00016| 
00017| export get_user
00018| 

(End of file - total 18 lines)
</file>

User has answered your questions: "I want to make sure I understand the pivot correctly. It sounds like you want to:

1. **Change the source language from a custom ML to TypeScript** — the compiler's input is now TypeScript (or a meaningful subset of it)
2. **Analyze closures as they naturally appear in TypeScript** — arrow functions, function expressions, closures capturing variables from outer scopes
3. **The compiler's job is to decompose a single TypeScript program into multiple Cloudflare Workers** based on closure boundaries and their captured bindings

So the example program would be something like a DNS resolver written in normal TypeScript, and the compiler would analyze its structure and produce a Cloudflare deployment topology.

Is that the right framing?"="Unanswered", "If the source language is now TypeScript, we need a strategy for parsing it. Writing a full TypeScript parser in OCaml is a massive undertaking. What's your preference?"="JSON AST from external tool", "How should Cloudflare resources be identified in TypeScript source? In real TS you'd use Cloudflare SDK imports."="Resources wont be identified, but generated by our parser, using random generated names derived from the resource names being used. The typescript source will be written with no intention of being run on a cloudflare network". You can now continue with the user's answers in mind.

User has answered your questions: "Let me restate what I think the compiler does:

A developer writes a **normal TypeScript program** — say a DNS resolver, an API server, or a data pipeline. They write it as a single coherent program with closures, modules, and shared state, with **no Cloudflare awareness at all**.

CloudLang then:
1. Parses the TS into an AST (via tsc/Babel JSON output)
2. Analyzes the closure structure — which functions close over which variables
3. **Automatically decomposes** the program into:
   - Multiple Workers (one per closure boundary / logical unit)
   - Bindings (shared state between closures becomes D1/KV/R2/DO bindings)
   - Service bindings (closure-to-closure calls become Worker-to-Worker RPC)
   - Routing (exported entry points get routes)
4. Generates the wrangler config + per-Worker TS scripts

The key insight: **the developer never thinks about Workers**. They write normal TS. The compiler decides the distributed topology.

Is this correct?"="Yes, exactly", "For the test case example program, you mentioned a DNS resolver. How realistic/complex should it be?"="Minimal but real". You can now continue with the user's answers in mind.

task_id: ses_3cfb8c590ffeyhmij1rLB7usm0 (for resuming to continue this task if needed)

<task_result>
Perfect! Now let me create a final summary of the research findings:

## Research Summary

I've completed comprehensive research on TypeScript AST to JSON conversion for the CloudLang compiler. Here are the key findings:

### **Main Recommendation: Use `@typescript-eslint/typescript-estree`** ✅

**Why this is best for CloudLang:**
- ✅ Produces clean JSON with **no circular references** (native TypeScript AST has circular refs)
- ✅ **ESTree-compatible** format - industry standard, well-documented
- ✅ **OCaml-friendly structure** - consistent discriminated unions map perfectly to OCaml variants
- ✅ **Battle-tested** - used by ESLint, Prettier, and thousands of projects
- ✅ **Preserves TypeScript type annotations** as special nodes (`TSTypeAnnotation`, `TSNumberKeyword`, etc.)

### The Three Approaches Compared:

```
┌─────────────────────────────────────────────────────────────────┐
│  Approach               │ JSON Output │ OCaml-friendly │ Status  │
├─────────────────────────┼─────────────┼────────────────┼─────────┤
│ Native TS Compiler API  │ ❌ Circular │ ❌ Irregular   │ ❌ Skip │
│ typescript-estree       │ ✅ Clean    │ ✅ Excellent   │ ✅ USE  │
│ Babel + TS plugin       │ ✅ Clean    │ ✅ Good        │ ⚠️ OK   │
└─────────────────────────────────────────────────────────────────┘
```

### JSON AST Structure Examples

I've documented actual JSON output for all your test cases:

1. **`const x = 42;`** → Simple `VariableDeclaration` with `Literal` node
2. **`const fn = (x: number) => x + 1;`** → `ArrowFunctionExpression` with `TSTypeAnnotation` preserving type info
3. **Arrow with closure** → Closure variable appears as regular `Identifier` reference (semantic analysis needed in OCaml)
4. **`export default { fetch(request) {...} }`** → `ExportDefaultDeclaration` wrapping `ObjectExpression` with method property

### Architecture Design

I've designed a **5-phase compiler ...

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/home/jm/data/ai/cloudlang/.opencode/context/cloudlang-architecture-design.md
/home/jm/data/ai/cloudlang/.opencode/context/typescript-ast-summary.md
/home/jm/data/ai/cloudlang/.opencode/context/typescript-ast-json-research.md

<file>
00001| (library
00002|  (name cloudlang))
00003| 

(End of file - total 3 lines)
</file>

<file>
00001| (executable
00002|  (public_name cloudlang)
00003|  (name main)
00004|  (libraries cloudlang))
00005| 

(End of file - total 5 lines)
</file>

<file>
00001| (test
00002|  (name test_cloudlang)
00003|  (libraries cloudlang))
00004| 

(End of file - total 4 lines)
</file>

<file>
00001| (lang dune 3.20)
00002| (authors "Jason Manning <manno@j9m>")
00003| (maintainers "Jason Manning <manno@j9m>")
00004| (license GPL-3.0-or-later)
00005| (source (github username/reponame))
00006| 
00007| (name cloudlang)
00008| (generate_opam_files true)
00009| (package
00010|  (name cloudlang)
00011|  (synopsis "CF Graph Compiler")
00012|   (depends
00013|      stdio
00014|      menhirLib
00015|       ocaml))
00016| 

(End of file - total 16 lines)
</file>

<file>
00001| # TypeScript JSON AST - Quick Reference
00002| 
00003| ## TL;DR
00004| 
00005| ✅ **Use `@typescript-eslint/typescript-estree`** for CloudLang compiler
00006| 
00007| **Why?**
00008| - Clean JSON output (no circular references)
00009| - ESTree standard format (well-documented)
00010| - Best for OCaml deserialization (consistent structure)
00011| - Battle-tested (used by ESLint, Prettier)
00012| 
00013| ---
00014| 
00015| ## The Three Approaches
00016| 
00017| ```
00018| ┌─────────────────────────────────────────────────────────────────┐
00019| │  Approach               │ JSON Output │ OCaml-friendly │ Status  │
00020| ├─────────────────────────┼─────────────┼────────────────┼─────────┤
00021| │ Native TS Compiler API  │ ❌ Circular │ ❌ Irregular   │ ❌ Skip │
00022| │ typescript-estree       │ ✅ Clean    │ ✅ Excellent   │ ✅ USE  │
00023| │ Babel + TS plugin       │ ✅ Clean    │ ✅ Good        │ ⚠️ OK   │
00024| └─────────────────────────────────────────────────────────────────┘
00025| ```
00026| 
00027| ---
00028| 
00029| ## Example JSON Outputs
00030| 
00031| ### Input: `const fn = (x: number) => x + 1;`
00032| 
00033| **typescript-estree output structure:**
00034| 
00035| ```json
00036| {
00037|   "type": "Program",
00038|   "body": [
00039|     {
00040|       "type": "VariableDeclaration",
00041|       "declarations": [{
00042|         "type": "VariableDeclarator",
00043|         "id": { "type": "Identifier", "name": "fn" },
00044|         "init": {
00045|           "type": "ArrowFunctionExpression",
00046|           "params": [{
00047|             "type": "Identifier",
00048|             "name": "x",
00049|             "typeAnnotation": {
00050|               "type": "TSTypeAnnotation",
00051|               "typeAnnotation": { "type": "TSNumberKeyword" }
00052|             }
00053|           }],
00054|           "body": {
00055|             "type": "BinaryExpression",
00056|             "operator": "+",
00057|             "left": { "type": "Identifier"...

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<file>
00001| type binding =
00002|   | D1Binding of { name : string; database_id : string }
00003|   | KVBinding of { name : string; namespace_id : string }
00004|   | R2Binding of { name : string; bucket_name : string }
00005|   | ServiceBinding of { name : string; service : string }
00006| 
00007| type worker = {
00008|   name : string;
00009|   script : string;
00010|   bindings : binding list;
00011|   routes : string list;
00012| }
00013| 
00014| type durable_object = {
00015|   class_name : string;
00016|   script : string;
00017| }
00018| 
00019| type r2_bucket = {
00020|   name : string;
00021|   location : string;
00022| }
00023| 
00024| type d1_database = {
00025|   name : string;
00026|   schema : string;
00027| }
00028| 
00029| type resource =
00030|   | Worker of worker
00031|   | DurableObject of durable_object
00032|   | R2Bucket of r2_bucket
00033|   | D1Database of d1_database
00034| 
00035| type config = resource list
00036| 

(End of file - total 36 lines)
</file>

<file>
00001| 
00002| type binding =
00003|   | D1Binding of { name : string; database_id : string }
00004|   | KVBinding of { name : string; namespace_id : string }
00005|   | R2Binding of { name : string; bucket_name : string }
00006|   | ServiceBinding of { name : string; service : string }
00007| 
00008| type worker = {
00009|   name : string;
00010|   script : string;
00011|   bindings : binding list;
00012|   routes : string list;
00013| }
00014| 
00015| type durable_object = {
00016|   class_name : string;
00017|   script : string;
00018| }
00019| 
00020| type r2_bucket = {
00021|   name : string;
00022|   location : string;
00023| }
00024| 
00025| type d1_database = {
00026|   name : string;
00027|   schema : string;
00028| }
00029| 
00030| type resource =
00031|   | Worker of worker
00032|   | DurableObject of durable_object
00033|   | R2Bucket of r2_bucket
00034|   | D1Database of d1_database
00035| 
00036| type config = resource list
00037| 

(End of file - total 37 lines)
</file>

<file>
00001| (library
00002|  (name cloudlang))
00003| 

(End of file - total 3 lines)
</file>

<file>
00001| open Cloudlang
00002| 
00003| let read_file filename =
00004|   let ch = open_in filename in
00005|   let s = really_input_string ch (in_channel_length ch) in
00006|   close_in ch;
00007|   s
00008| 
00009| let () =
00010|   if Array.length Sys.argv < 2 then
00011|     print_endline "Usage: cloudlang <file.cl>"
00012|   else
00013|     let filename = Sys.argv.(1) in
00014|     let source = read_file filename in
00015|     match parse source with
00016|     | Error e -> Printf.printf "Parse error: %s\n" e
00017|     | Ok ast ->
00018|       match typecheck ast with
00019|       | Error e -> Printf.printf "Type error: %s\n" e
00020|       | Ok typed_ast ->
00021|         match compile typed_ast with
00022|         | Error e -> Printf.printf "Compile error: %s\n" e
00023|         | Ok ir ->
00024|           let output = generate ir in
00025|           print_endline output
00026| 

(End of file - total 26 lines)
</file>

<file>
00001| (lang dune 3.20)
00002| (authors "Jason Manning <manno@j9m>")
00003| (maintainers "Jason Manning <manno@j9m>")
00004| (license GPL-3.0-or-later)
00005| (source (github username/reponame))
00006| 
00007| (name cloudlang)
00008| (generate_opam_files true)
00009| (package
00010|  (name cloudlang)
00011|  (synopsis "CF Graph Compiler")
00012|   (depends
00013|      stdio
00014|      menhirLib
00015|       ocaml))
00016| 

(End of file - total 16 lines)
</file>

[
  {
    "id": "plan-1",
    "content": "Design: finalize the TypeScript source example program",
    "status": "in_progress",
    "priority": "high"
  },
  {
    "id": "plan-2",
    "content": "Design: define the ESTree AST subset (ast.ml types)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "plan-3",
    "content": "Design: define scope analysis output types (scope.ml)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "plan-4",
    "content": "Design: define decomposition strategy (decompose.ml)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "plan-5",
    "content": "Design: define expected IR output for the test",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "plan-6",
    "content": "Design: define expected generated TS + wrangler output",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "plan-7",
    "content": "Present final implementation plan for approval",
    "status": "pending",
    "priority": "high"
  }
]

User has answered your questions: "In the kv-store example, `handleRequest` calls `cache.delete(key)` which directly mutates the `cache` Map that belongs to the cache group. This creates a cross-group mutation. Two options:

1. **Move `handleRequest` into the cache group** (since it mutates `cache`). Then the api Worker only contains functions that don't directly mutate shared state — it delegates everything via service bindings.

2. **Simplify the example** to remove the `cache.delete` call from `handleRequest`, so each group only mutates its own state. This makes the decomposition cleaner and the test simpler.

Option 2 means `handleRequest` becomes purely a router that delegates to `cachedGet` and `put` via service bindings, which is arguably the more natural Cloudflare architecture anyway."="Simplify the example (Recommended)". You can now continue with the user's answers in mind.

[
  {
    "id": "plan-1",
    "content": "Design: finalize the TypeScript source example program",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "plan-2",
    "content": "Design: define the ESTree AST subset (ast.ml types)",
    "status": "in_progress",
    "priority": "high"
  },
  {
    "id": "plan-3",
    "content": "Design: define scope analysis output types (scope.ml)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "plan-4",
    "content": "Design: define decomposition strategy (decompose.ml)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "plan-5",
    "content": "Design: define expected IR output for the test",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "plan-6",
    "content": "Design: define expected generated TS + wrangler output",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "plan-7",
    "content": "Present final implementation plan for approval",
    "status": "pending",
    "priority": "high"
  }
]

[
  {
    "id": "impl-1",
    "content": "Rewrite lib/ast.ml + lib/ast.mli — ESTree TypeScript AST subset",
    "status": "in_progress",
    "priority": "high"
  },
  {
    "id": "impl-2",
    "content": "Create lib/scope.ml + lib/scope.mli — scope analysis + free variables",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "impl-3",
    "content": "Create lib/decompose.ml + lib/decompose.mli — closure grouping + IR generation",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "impl-4",
    "content": "Rewrite lib/cloudlang.ml + lib/cloudlang.mli — new pipeline + generate",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "impl-5",
    "content": "Update bin/main.ml — adapt to new pipeline API",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "impl-6",
    "content": "Rewrite test/test_cloudlang.ml — kv-store test case",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "impl-7",
    "content": "Create examples/kv-store.ts — documented example",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "impl-8",
    "content": "Update dune-project — drop menhirLib dependency",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "impl-9",
    "content": "Build and run tests to verify",
    "status": "pending",
    "priority": "high"
  }
]

Edit applied successfully.

<file>
00001| type loc = { line : int; column : int }
00002| 
00003| type ty =
00004|   | TInt
00005|   | TBool
00006|   | TString
00007|   | TArrow of ty * ty
00008|   | TUnit
00009| 
00010| type expr =
00011|   | Var of string * loc
00012|   | Int of int * loc
00013|   | Bool of bool * loc
00014|   | String of string * loc
00015|   | Lambda of string * ty * expr * loc
00016|   | App of expr * expr * loc
00017|   | Let of string * expr * expr * loc
00018|   | PrimOp of string * expr list * loc
00019| 
00020| type stmt =
00021|   | Define of string * expr * loc
00022|   | Export of string * loc
00023| 
00024| type program = stmt list
00025| 

(End of file - total 25 lines)
</file>

Edit applied successfully.

[
  {
    "id": "impl-1",
    "content": "Rewrite lib/ast.ml + lib/ast.mli — ESTree TypeScript AST subset",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-2",
    "content": "Create lib/scope.ml + lib/scope.mli — scope analysis + free variables",
    "status": "in_progress",
    "priority": "high"
  },
  {
    "id": "impl-3",
    "content": "Create lib/decompose.ml + lib/decompose.mli — closure grouping + IR generation",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "impl-4",
    "content": "Rewrite lib/cloudlang.ml + lib/cloudlang.mli — new pipeline + generate",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "impl-5",
    "content": "Update bin/main.ml — adapt to new pipeline API",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "impl-6",
    "content": "Rewrite test/test_cloudlang.ml — kv-store test case",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "impl-7",
    "content": "Create examples/kv-store.ts — documented example",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "impl-8",
    "content": "Update dune-project — drop menhirLib dependency",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "impl-9",
    "content": "Build and run tests to verify",
    "status": "pending",
    "priority": "high"
  }
]

[
  {
    "id": "impl-1",
    "content": "Rewrite lib/ast.ml + lib/ast.mli — ESTree TypeScript AST subset",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-2",
    "content": "Create lib/scope.ml + lib/scope.mli — scope analysis + free variables",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-3",
    "content": "Create lib/decompose.ml + lib/decompose.mli — closure grouping + IR generation",
    "status": "in_progress",
    "priority": "high"
  },
  {
    "id": "impl-4",
    "content": "Rewrite lib/cloudlang.ml + lib/cloudlang.mli — new pipeline + generate",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "impl-5",
    "content": "Update bin/main.ml — adapt to new pipeline API",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "impl-6",
    "content": "Rewrite test/test_cloudlang.ml — kv-store test case",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "impl-7",
    "content": "Create examples/kv-store.ts — documented example",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "impl-8",
    "content": "Update dune-project — drop menhirLib dependency",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "impl-9",
    "content": "Build and run tests to verify",
    "status": "pending",
    "priority": "high"
  }
]

[
  {
    "id": "impl-1",
    "content": "Rewrite lib/ast.ml + lib/ast.mli — ESTree TypeScript AST subset",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-2",
    "content": "Create lib/scope.ml + lib/scope.mli — scope analysis + free variables",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-3",
    "content": "Create lib/decompose.ml + lib/decompose.mli — closure grouping + IR generation",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-4",
    "content": "Rewrite lib/cloudlang.ml + lib/cloudlang.mli — new pipeline + generate",
    "status": "in_progress",
    "priority": "high"
  },
  {
    "id": "impl-5",
    "content": "Update bin/main.ml — adapt to new pipeline API",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "impl-6",
    "content": "Rewrite test/test_cloudlang.ml — kv-store test case",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "impl-7",
    "content": "Create examples/kv-store.ts — documented example",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "impl-8",
    "content": "Update dune-project — drop menhirLib dependency",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "impl-9",
    "content": "Build and run tests to verify",
    "status": "pending",
    "priority": "high"
  }
]

Edit applied successfully.

<file>
00001| module Ast : sig
00002|   type loc = { line : int; column : int }
00003| 
00004|   type ty =
00005|     | TInt
00006|     | TBool
00007|     | TString
00008|     | TArrow of ty * ty
00009|     | TUnit
00010| 
00011|   type expr =
00012|     | Var of string * loc
00013|     | Int of int * loc
00014|     | Bool of bool * loc
00015|     | String of string * loc
00016|     | Lambda of string * ty * expr * loc
00017|     | App of expr * expr * loc
00018|     | Let of string * expr * expr * loc
00019|     | PrimOp of string * expr list * loc
00020| 
00021|   type stmt =
00022|     | Define of string * expr * loc
00023|     | Export of string * loc
00024| 
00025|   type program = stmt list
00026| end
00027| 
00028| module Ir : sig
00029|   type binding =
00030|     | D1Binding of { name : string; database_id : string }
00031|     | KVBinding of { name : string; namespace_id : string }
00032|     | R2Binding of { name : string; bucket_name : string }
00033|     | ServiceBinding of { name : string; service : string }
00034| 
00035|   type worker = {
00036|     name : string;
00037|     script : string;
00038|     bindings : binding list;
00039|     routes : string list;
00040|   }
00041| 
00042|   type durable_object = {
00043|     class_name : string;
00044|     script : string;
00045|   }
00046| 
00047|   type r2_bucket = {
00048|     name : string;
00049|     location : string;
00050|   }
00051| 
00052|   type d1_database = {
00053|     name : string;
00054|     schema : string;
00055|   }
00056| 
00057|   type resource =
00058|     | Worker of worker
00059|     | DurableObject of durable_object
00060|     | R2Bucket of r2_bucket
00061|     | D1Database of d1_database
00062| 
00063|   type config = resource list
00064| end
00065| 
00066| type error = string
00067| 
00068| val parse : string -> (Ast.program, error) result
00069| val typecheck : Ast.program -> (Ast.program, error) result
00070| val compile : Ast.program -> (Ir.config, error) result
00071| val ...

Edit applied successfully.

[
  {
    "id": "impl-1",
    "content": "Rewrite lib/ast.ml + lib/ast.mli — ESTree TypeScript AST subset",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-2",
    "content": "Create lib/scope.ml + lib/scope.mli — scope analysis + free variables",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-3",
    "content": "Create lib/decompose.ml + lib/decompose.mli — closure grouping + IR generation",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-4",
    "content": "Rewrite lib/cloudlang.ml + lib/cloudlang.mli — new pipeline + generate",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-5",
    "content": "Update bin/main.ml — adapt to new pipeline API",
    "status": "in_progress",
    "priority": "high"
  },
  {
    "id": "impl-6",
    "content": "Rewrite test/test_cloudlang.ml — kv-store test case",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "impl-7",
    "content": "Create examples/kv-store.ts — documented example",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "impl-8",
    "content": "Update dune-project — drop menhirLib dependency",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "impl-9",
    "content": "Build and run tests to verify",
    "status": "pending",
    "priority": "high"
  }
]

Edit applied successfully.

[
  {
    "id": "impl-1",
    "content": "Rewrite lib/ast.ml + lib/ast.mli — ESTree TypeScript AST subset",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-2",
    "content": "Create lib/scope.ml + lib/scope.mli — scope analysis + free variables",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-3",
    "content": "Create lib/decompose.ml + lib/decompose.mli — closure grouping + IR generation",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-4",
    "content": "Rewrite lib/cloudlang.ml + lib/cloudlang.mli — new pipeline + generate",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-5",
    "content": "Update bin/main.ml — adapt to new pipeline API",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-6",
    "content": "Rewrite test/test_cloudlang.ml — kv-store test case",
    "status": "in_progress",
    "priority": "high"
  },
  {
    "id": "impl-7",
    "content": "Create examples/kv-store.ts — documented example",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "impl-8",
    "content": "Update dune-project — drop menhirLib dependency",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "impl-9",
    "content": "Build and run tests to verify",
    "status": "pending",
    "priority": "high"
  }
]

Edit applied successfully.

[
  {
    "id": "impl-1",
    "content": "Rewrite lib/ast.ml + lib/ast.mli — ESTree TypeScript AST subset",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-2",
    "content": "Create lib/scope.ml + lib/scope.mli — scope analysis + free variables",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-3",
    "content": "Create lib/decompose.ml + lib/decompose.mli — closure grouping + IR generation",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-4",
    "content": "Rewrite lib/cloudlang.ml + lib/cloudlang.mli — new pipeline + generate",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-5",
    "content": "Update bin/main.ml — adapt to new pipeline API",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-6",
    "content": "Rewrite test/test_cloudlang.ml — kv-store test case",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-7",
    "content": "Create examples/kv-store.ts — documented example",
    "status": "in_progress",
    "priority": "medium"
  },
  {
    "id": "impl-8",
    "content": "Update dune-project — drop menhirLib dependency",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "impl-9",
    "content": "Build and run tests to verify",
    "status": "pending",
    "priority": "high"
  }
]

Edit applied successfully.

[
  {
    "id": "impl-1",
    "content": "Rewrite lib/ast.ml + lib/ast.mli — ESTree TypeScript AST subset",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-2",
    "content": "Create lib/scope.ml + lib/scope.mli — scope analysis + free variables",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-3",
    "content": "Create lib/decompose.ml + lib/decompose.mli — closure grouping + IR generation",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-4",
    "content": "Rewrite lib/cloudlang.ml + lib/cloudlang.mli — new pipeline + generate",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-5",
    "content": "Update bin/main.ml — adapt to new pipeline API",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-6",
    "content": "Rewrite test/test_cloudlang.ml — kv-store test case",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-7",
    "content": "Create examples/kv-store.ts — documented example",
    "status": "completed",
    "priority": "medium"
  },
  {
    "id": "impl-8",
    "content": "Update dune-project — drop menhirLib dependency",
    "status": "completed",
    "priority": "medium"
  },
  {
    "id": "impl-9",
    "content": "Build and run tests to verify",
    "status": "in_progress",
    "priority": "high"
  }
]

File "dune.lock/lock.dune", line 1, characters 0-0:
Error: The lock dir is not sync with your dune-project
Hint: run dune pkg lock

Solution for dune.lock:
- ocaml.5.4.0
- ocaml-base-compiler.5.4.0
- ocaml-compiler.5.4.0
- ocaml-config.3

File "lib/scope.ml", line 148, characters 46-57:
148 |          && List.exists (fun v -> v.name = r) module_vars)
                                                    ^^^^^^^^^^^
Error: The value module_vars has type var_info list
       but an expression was expected of type closure_info list
       Type var_info is not compatible with type closure_info
File "bin/main.ml", line 1, characters 0-14:
1 | open Cloudlang
    ^^^^^^^^^^^^^^
Error (warning 33 [unused-open]): unused open Cloudlang.

All 2 tools executed successfully.

Keep using the batch tool for optimal performance in your next response!

<file>
00136| (** Analyse a single arrow function: compute its free variables,
00137|     the functions it calls, and which captured variables are mutable state. *)
00138| let analyse_closure (name : string) (params : Ast.node list)
00139|     (body : Ast.node) (module_vars : var_info list) : closure_info =
00140|   let param_set = param_names params in
00141|   let locals = collect_locals body in
00142|   let bound = param_set @ locals in
00143|   let all_refs = dedup (collect_refs body) in
00144|   let free_vars =
00145|     List.filter
00146|       (fun r ->
00147|          (not (List.mem r bound))
00148|          && List.exists (fun v -> v.name = r) module_vars)
00149|       all_refs
00150|   in
00151|   let all_called = dedup (collect_called_functions body) in
00152|   let called_functions =
00153|     List.filter
00154|       (fun f ->
00155|          (not (List.mem f bound))
00156|          && List.exists (fun v -> v.name = f && v.is_function) module_vars)
00157|       all_called
00158|   in
00159|   let captures_mutable =
00160|     List.filter

(File has more lines. Use 'offset' parameter to read beyond line 160)
</file>

<file>
00001| open Cloudlang
00002| 
00003| let () =
00004|   if Array.length Sys.argv < 2 then
00005|     print_endline
00006|       "Usage: cloudlang <file.ts>\n\n\
00007|        Decomposes a TypeScript program into Cloudflare Workers.\n\n\
00008|        Currently expects a JSON ESTree AST on stdin.\n\
00009|        (Direct .ts parsing via typescript-estree bridge is planned.)"
00010|   else
00011|     (* TODO: implement JSON AST ingestion from typescript-estree.
00012|        For now the CLI is a placeholder; the real pipeline is exercised
00013|        via the test suite which constructs the AST programmatically. *)
00014|     let _filename = Sys.argv.(1) in
00015|     Printf.printf
00016|       "cloudlang: .ts file parsing not yet implemented.\n\
00017|        Run `dune runtest` to see the pipeline in action.\n"
00018| 

(End of file - total 18 lines)
</file>

The arguments provided to the tool are invalid: Invalid input for tool read: JSON parsing failed: Text: {"filePath": "/home/jm/data/ai/cloudlang/lib/scope.ml", "offset": 136, limit: 30, "limit": 30}.
Error message: JSON Parse error: Property name must be a string literal

<file>
00131|   | Ast.IfStatement { consequent; alternate; _ } ->
00132|     collect_locals consequent
00133|     @ (match alternate with Some a -> collect_locals a | None -> [])
00134|   | _ -> []
00135| 
00136| (** Analyse a single arrow function: compute its free variables,
00137|     the functions it calls, and which captured variables are mutable state. *)
00138| let analyse_closure (name : string) (params : Ast.node list)
00139|     (body : Ast.node) (module_vars : var_info list) : closure_info =
00140|   let param_set = param_names params in
00141|   let locals = collect_locals body in
00142|   let bound = param_set @ locals in
00143|   let all_refs = dedup (collect_refs body) in
00144|   let free_vars =
00145|     List.filter
00146|       (fun r ->
00147|          (not (List.mem r bound))
00148|          && List.exists (fun v -> v.name = r) module_vars)
00149|       all_refs
00150|   in
00151|   let all_called = dedup (collect_called_functions body) in
00152|   let called_functions =
00153|     List.filter
00154|       (fun f ->
00155|          (not (List.mem f bound))
00156|          && List.exists (fun v -> v.name = f && v.is_function) module_vars)
00157|       all_called
00158|   in
00159|   let captures_mutable =
00160|     List.filter
00161|       (fun fv ->
00162|          List.exists
00163|            (fun v -> v.name = fv && v.is_mutable_state)
00164|            module_vars)
00165|       free_vars
00166|   in
00167|   { name; free_vars; called_functions; captures_mutable }
00168| 
00169| (** Top-level analysis entry point. Expects a [Program] node. *)
00170| let analyze (program : Ast.node) : analysis_result =
00171|   let body =
00172|     match program with
00173|     | Ast.Program { body } -> body
00174|     | _ -> failwith "analyze: expected Program node"
00175|   in

(File has more lines. Use 'offset' parameter to read beyond line 175)
</file>

Edit applied successfully.

Edit applied successfully.

Running CloudLang tests...
  scope analysis: OK
  decomposition: OK
  IR output: OK
  generated output: OK

=== Full Generated Output ===

--- Worker: cache ---
== wrangler.toml ==
{
  "name": "cache",
  "kv_namespaces": [
    { "binding": "CACHE", "id": "cloudlang-cache" }
  ],
  "services": [
    { "binding": "STORAGE", "service": "storage" }
  ]
}

== script ==
interface Env {
  CACHE: KVNamespace;
  STORAGE: Fetcher;
}

export default {
  async fetch(request: Request, env: Env): Promise<Response> {
  const cache = env.CACHE;
  const storage = env.STORAGE;

  // handler: cachedGet
  return new Response("ok");
  }
};

--- Worker: storage ---
== wrangler.toml ==
{
  "name": "storage",
  "kv_namespaces": [
    { "binding": "STORE", "id": "cloudlang-store" }
  ]
}

== script ==
interface Env {
  STORE: KVNamespace;
}

export default {
  async fetch(request: Request, env: Env): Promise<Response> {
  const store = env.STORE;

  // handler: put
  // handler: get
  return new Response("ok");
  }
};

--- Worker: handleRequest ---
== wrangler.toml ==
{
  "name": "handleRequest",
  "services": [
    { "binding": "CACHE", "service": "cache" },
    { "binding": "STORAGE", "service": "storage" }
  ],
  "routes": ["/handleRequest"]
}

== script ==
interface Env {
  CACHE: Fetcher;
  STORAGE: Fetcher;
}

export default {
  async fetch(request: Request, env: Env): Promise<Response> {
  const cache = env.CACHE;
  const storage = env.STORAGE;

  // handler: handleRequest
  return new Response("ok");
  }
};


All tests passed!

closure_worker.cl
hello.cl
kv-store.ts

[
  {
    "id": "impl-1",
    "content": "Rewrite lib/ast.ml + lib/ast.mli — ESTree TypeScript AST subset",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-2",
    "content": "Create lib/scope.ml + lib/scope.mli — scope analysis + free variables",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-3",
    "content": "Create lib/decompose.ml + lib/decompose.mli — closure grouping + IR generation",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-4",
    "content": "Rewrite lib/cloudlang.ml + lib/cloudlang.mli — new pipeline + generate",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-5",
    "content": "Update bin/main.ml — adapt to new pipeline API",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-6",
    "content": "Rewrite test/test_cloudlang.ml — kv-store test case",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "impl-7",
    "content": "Create examples/kv-store.ts — documented example",
    "status": "completed",
    "priority": "medium"
  },
  {
    "id": "impl-8",
    "content": "Update dune-project — drop menhirLib dependency",
    "status": "completed",
    "priority": "medium"
  },
  {
    "id": "impl-9",
    "content": "Build and run tests to verify",
    "status": "completed",
    "priority": "high"
  }
]

All 8 tools executed successfully.

Keep using the batch tool for optimal performance in your next response!

<file>
00001| (** ESTree-compatible AST subset for TypeScript.
00002| 
00003|     This represents the minimal set of TypeScript constructs needed for
00004|     closure analysis and Worker decomposition. Node types follow the ESTree
00005|     specification used by @typescript-eslint/typescript-estree. *)
00006| 
00007| type var_kind = Const | Let | Var
00008| 
00009| type literal_value =
00010|   | LString of string
00011|   | LNumber of float
00012|   | LBool of bool
00013|   | LNull
00014|   | LUndefined
00015| 
00016| (** A single AST node. The variant name matches the ESTree "type" field. *)
00017| type node =
00018|   | Program of { body : node list }
00019|   | VariableDeclaration of { kind : var_kind; declarations : node list }
00020|   | VariableDeclarator of { id : node; init : node option }
00021|   | Identifier of { name : string }
00022|   | Literal of { value : literal_value }
00023|   | ArrowFunctionExpression of {
00024|       params : node list;
00025|       body : node;
00026|       async_ : bool;
00027|     }
00028|   | BlockStatement of { body : node list }
00029|   | ReturnStatement of { argument : node option }
00030|   | IfStatement of { test : node; consequent : node; alternate : node option }
00031|   | ExpressionStatement of { expression : node }
00032|   | CallExpression of { callee : node; arguments : node list }
00033|   | MemberExpression of { object_ : node; property : node }
00034|   | NewExpression of { callee : node; arguments : node list }
00035|   | BinaryExpression of { operator : string; left : node; right : node }
00036|   | LogicalExpression of { operator : string; left : node; right : node }
00037|   | ExportNamedDeclaration of { specifiers : node list }
00038|   | ExportSpecifier of { local : node }
00039| 

(End of file - total 39 lines)
</file>

<file>
00001| (** ESTree-compatible AST subset for TypeScript. *)
00002| 
00003| type var_kind = Const | Let | Var
00004| 
00005| type literal_value =
00006|   | LString of string
00007|   | LNumber of float
00008|   | LBool of bool
00009|   | LNull
00010|   | LUndefined
00011| 
00012| type node =
00013|   | Program of { body : node list }
00014|   | VariableDeclaration of { kind : var_kind; declarations : node list }
00015|   | VariableDeclarator of { id : node; init : node option }
00016|   | Identifier of { name : string }
00017|   | Literal of { value : literal_value }
00018|   | ArrowFunctionExpression of {
00019|       params : node list;
00020|       body : node;
00021|       async_ : bool;
00022|     }
00023|   | BlockStatement of { body : node list }
00024|   | ReturnStatement of { argument : node option }
00025|   | IfStatement of { test : node; consequent : node; alternate : node option }
00026|   | ExpressionStatement of { expression : node }
00027|   | CallExpression of { callee : node; arguments : node list }
00028|   | MemberExpression of { object_ : node; property : node }
00029|   | NewExpression of { callee : node; arguments : node list }
00030|   | BinaryExpression of { operator : string; left : node; right : node }
00031|   | LogicalExpression of { operator : string; left : node; right : node }
00032|   | ExportNamedDeclaration of { specifiers : node list }
00033|   | ExportSpecifier of { local : node }
00034| 

(End of file - total 34 lines)
</file>

<file>
00001| let () =
00002|   print_endline "Running CloudLang tests...";
00003| 
00004|   Test_scope.run ();
00005|   print_endline "  scope analysis: OK";
00006| 
00007|   Test_decompose.run ();
00008|   print_endline "  decomposition: OK";
00009| 
00010|   Test_ir.run ();
00011|   print_endline "  IR output: OK";
00012| 
00013|   Test_generate.run ();
00014|   print_endline "  generated output: OK";
00015| 
00016|   print_endline "";
00017|   print_endline "All tests passed!"
00018| 

(End of file - total 18 lines)
</file>

<file>
00001| (** Scope analysis for TypeScript ESTree AST.
00002| 
00003|     Two-pass analysis: 1. Declaration pass: collect all module-scope const/let
00004|     bindings, noting which are mutable state (new Map/Set) and which are
00005|     functions. 2. Reference pass: for each arrow function body, collect
00006|     Identifier references that are not locally declared -> these are free
00007|     variables. *)
00008| 
00009| type error = Expected_program_node
00010| 
00011| let error_to_string = function
00012|   | Expected_program_node -> "expected Program node"
00013| 
00014| type var_info = { name : string; is_mutable_state : bool; is_function : bool }
00015| 
00016| type closure_info = {
00017|   name : string;
00018|   free_vars : string list;
00019|   called_functions : string list;
00020|   captures_mutable : string list;
00021| }
00022| 
00023| type analysis_result = {
00024|   closures : closure_info list;
00025|   module_vars : var_info list;
00026|   exports : string list;
00027| }
00028| 
00029| (** Check whether an init expression is [new Map(...)], [new Set(...)], etc. *)
00030| let is_mutable_init = function
00031|   | Ast.NewExpression { callee = Ast.Identifier { name }; _ }
00032|     when name = "Map" || name = "Set" || name = "Array" ->
00033|       true
00034|   | _ -> false
00035| 
00036| (** Check whether an init expression is an arrow function. *)
00037| let is_arrow_init = function
00038|   | Ast.ArrowFunctionExpression _ -> true
00039|   | _ -> false
00040| 
00041| let option_exists predicate = function
00042|   | Some value -> predicate value
00043|   | None -> false
00044| 
00045| (** Extract parameter names from an arrow function's param list. *)
00046| let param_names params =
00047|   List.filter_map
00048|     (function Ast.Identifier { name } -> Some name | _ -> None)
00049|     params
00050| 
00051| (** Collect all identifiers referenced in an expression/statement, excluding
00052|     property names on the right side of member ...

<file>
00001| module Ast = Ast
00002| module Ir = Ir
00003| module Scope = Scope
00004| module Decompose = Decompose
00005| 
00006| type error = string
00007| 
00008| (** Analyse a TypeScript AST and decompose it into Worker groups. *)
00009| let analyze (program : Ast.node) : (Scope.analysis_result, error) result =
00010|   Scope.analyze program
00011|   |> Result.map_error (fun err ->
00012|       Printf.sprintf "analysis error: %s" (Scope.error_to_string err))
00013| 
00014| (** Decompose analysis results into Worker groups and convert to IR. *)
00015| let compile (analysis : Scope.analysis_result) : (Ir.config, error) result =
00016|   let groups = Decompose.decompose analysis in
00017|   Ok (Decompose.to_ir groups analysis)
00018| 
00019| (* --- Code generation: IR -> output string --- *)
00020| 
00021| (** Generate a JSON-style wrangler configuration for a binding. *)
00022| let generate_binding_json (b : Ir.binding) : string =
00023|   match b with
00024|   | Ir.D1Binding { name; database_id } ->
00025|       Printf.sprintf {|    { "binding": "%s", "database_id": "%s" }|} name
00026|         database_id
00027|   | Ir.KVBinding { name; namespace_id } ->
00028|       Printf.sprintf {|    { "binding": "%s", "id": "%s" }|} name namespace_id
00029|   | Ir.R2Binding { name; bucket_name } ->
00030|       Printf.sprintf {|    { "binding": "%s", "bucket_name": "%s" }|} name
00031|         bucket_name
00032|   | Ir.ServiceBinding { name; service } ->
00033|       Printf.sprintf {|    { "binding": "%s", "service": "%s" }|} name service
00034| 
00035| (** Generate output for a single resource. *)
00036| let generate_resource (r : Ir.resource) : string =
00037|   match r with
00038|   | Ir.Worker w ->
00039|       let bindings_json =
00040|         if w.bindings = [] then ""
00041|         else
00042|           let section field lines =
00043|             if lines = [] then ""
00044|             else
00045|               Printf.sprintf {|,
00046|   "%s": [
00047| %s
00048...

<file>
00001| (lang dune 3.20)
00002| (authors "Jason Manning <manno@j9m>")
00003| (maintainers "Jason Manning <manno@j9m>")
00004| (license GPL-3.0-or-later)
00005| (source (github manno23/cloudlang))
00006| 
00007| (name cloudlang)
00008| (generate_opam_files true)
00009| (maintenance_intent "(latest)")
00010| (package
00011|  (name cloudlang)
00012|  (synopsis "TypeScript to Cloudflare Worker decomposition compiler")
00013|  (depends
00014|   ocaml))
00015| 

(End of file - total 15 lines)
</file>

<file>
00001| let () =
00002|   if Array.length Sys.argv < 2 then
00003|     print_endline
00004|       "Usage: cloudlang <file.ts>\n\n\
00005|        Decomposes a TypeScript program into Cloudflare Workers.\n\n\
00006|        Currently expects a JSON ESTree AST on stdin.\n\
00007|        (Direct .ts parsing via typescript-estree bridge is planned.)"
00008|   else
00009|     (* TODO: implement JSON AST ingestion from typescript-estree.
00010|        For now the CLI is a placeholder; the real pipeline is exercised
00011|        via the test suite which constructs the AST programmatically. *)
00012|     let _filename = Sys.argv.(1) in
00013|     Printf.printf
00014|       "cloudlang: .ts file parsing not yet implemented.\n\
00015|        Run `dune runtest` to see the pipeline in action.\n"
00016| 

(End of file - total 16 lines)
</file>

<file>
00001| // examples/kv-store.ts
00002| //
00003| // A key-value store with a cache layer.
00004| // Written as a normal TypeScript program — no Cloudflare awareness.
00005| //
00006| // CloudLang decomposes this into 3 Workers:
00007| //   1. "storage"        — put/get functions, KV binding for store
00008| //   2. "cache"          — cachedGet function, KV + service binding
00009| //   3. "handleRequest"  — routing layer, service bindings to cache + storage
00010| 
00011| const store = new Map<string, string>();
00012| 
00013| const put = (key: string, value: string): void => {
00014|   store.set(key, value);
00015| };
00016| 
00017| const get = (key: string): string | undefined => {
00018|   return store.get(key);
00019| };
00020| 
00021| const cache = new Map<string, string>();
00022| 
00023| const cachedGet = (key: string): string | undefined => {
00024|   const hit = cache.get(key);
00025|   if (hit) return hit;
00026|   const result = get(key);
00027|   if (result) {
00028|     cache.set(key, result);
00029|     return result;
00030|   }
00031|   return undefined;
00032| };
00033| 
00034| const handleRequest = (method: string, key: string, value?: string): string => {
00035|   if (method === "GET") {
00036|     return cachedGet(key) ?? "NOT_FOUND";
00037|   }
00038|   if (method === "PUT" && value) {
00039|     put(key, value);
00040|     return "OK";
00041|   }
00042|   return "BAD_REQUEST";
00043| };
00044| 
00045| export { handleRequest };
00046| 

(End of file - total 46 lines)
</file>

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/home/jm/data/ai/cloudlang/test/test_ir.ml
/home/jm/data/ai/cloudlang/test/fixture.ml
/home/jm/data/ai/cloudlang/test/test_decompose.ml
/home/jm/data/ai/cloudlang/test/test_scope.ml
/home/jm/data/ai/cloudlang/test/test_cloudlang.ml
/home/jm/data/ai/cloudlang/test/test_generate.ml

/home/jm/data/ai/cloudlang/lib/string_list.ml
/home/jm/data/ai/cloudlang/lib/scope.ml
/home/jm/data/ai/cloudlang/lib/ir.ml
/home/jm/data/ai/cloudlang/lib/decompose.ml
/home/jm/data/ai/cloudlang/lib/cloudlang.ml
/home/jm/data/ai/cloudlang/lib/ast.ml

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<file>
00001| module A = Cloudlang.Ast
00002| 
00003| let has_substr s sub =
00004|   let len_s = String.length s in
00005|   let len_sub = String.length sub in
00006|   if len_sub > len_s then false
00007|   else
00008|     let found = ref false in
00009|     for i = 0 to len_s - len_sub do
00010|       if String.sub s i len_sub = sub then found := true
00011|     done;
00012|     !found
00013| 
00014| let id name = A.Identifier { name }
00015| let str s = A.Literal { value = A.LString s }
00016| let undef = A.Literal { value = A.LUndefined }
00017| 
00018| let const_decl name init =
00019|   A.VariableDeclaration
00020|     {
00021|       kind = A.Const;
00022|       declarations = [ A.VariableDeclarator { id = id name; init } ];
00023|     }
00024| 
00025| let arrow params body =
00026|   A.ArrowFunctionExpression { params; body; async_ = false }
00027| 
00028| let call callee arguments = A.CallExpression { callee; arguments }
00029| let member obj prop = A.MemberExpression { object_ = obj; property = id prop }
00030| let expr_stmt e = A.ExpressionStatement { expression = e }
00031| let block stmts = A.BlockStatement { body = stmts }
00032| let ret e = A.ReturnStatement { argument = Some e }
00033| 
00034| let if_ test consequent alternate =
00035|   A.IfStatement { test; consequent; alternate }
00036| 
00037| let bin op left right = A.BinaryExpression { operator = op; left; right }
00038| let logic op left right = A.LogicalExpression { operator = op; left; right }
00039| let new_ callee arguments = A.NewExpression { callee; arguments }
00040| 
00041| let export_named names =
00042|   A.ExportNamedDeclaration
00043|     {
00044|       specifiers = List.map (fun n -> A.ExportSpecifier { local = id n }) names;
00045|     }
00046| 
00047| let build_kv_store_ast () : A.node =
00048|   A.Program
00049|     {
00050|       body =
00051|         [
00052|           const_decl "store" (Some (new_ (id "Map") []));
00053|           const_decl "put"
00054|             (Some
0...

<file>
00001| let run () =
00002|   let program = Fixture.build_kv_store_ast () in
00003|   let analysis = Fixture.analyze_exn program in
00004| 
00005|   assert (List.length analysis.module_vars = 6);
00006| 
00007|   let get_var name =
00008|     List.find
00009|       (fun (v : Cloudlang.Scope.var_info) -> v.name = name)
00010|       analysis.module_vars
00011|   in
00012|   assert (get_var "store").is_mutable_state;
00013|   assert (get_var "cache").is_mutable_state;
00014|   assert (not (get_var "put").is_mutable_state);
00015|   assert (get_var "put").is_function;
00016|   assert (get_var "get").is_function;
00017|   assert (get_var "cachedGet").is_function;
00018|   assert (get_var "handleRequest").is_function;
00019| 
00020|   assert (List.length analysis.closures = 4);
00021| 
00022|   let get_closure name =
00023|     List.find
00024|       (fun (c : Cloudlang.Scope.closure_info) -> c.name = name)
00025|       analysis.closures
00026|   in
00027| 
00028|   let c_put = get_closure "put" in
00029|   assert (c_put.free_vars = [ "store" ]);
00030|   assert (c_put.captures_mutable = [ "store" ]);
00031|   assert (c_put.called_functions = []);
00032| 
00033|   let c_get = get_closure "get" in
00034|   assert (c_get.free_vars = [ "store" ]);
00035|   assert (c_get.captures_mutable = [ "store" ]);
00036|   assert (c_get.called_functions = []);
00037| 
00038|   let c_cached = get_closure "cachedGet" in
00039|   assert (List.mem "cache" c_cached.free_vars);
00040|   assert (List.mem "get" c_cached.free_vars);
00041|   assert (c_cached.captures_mutable = [ "cache" ]);
00042|   assert (List.mem "get" c_cached.called_functions);
00043| 
00044|   let c_handle = get_closure "handleRequest" in
00045|   assert (List.mem "cachedGet" c_handle.free_vars);
00046|   assert (List.mem "put" c_handle.free_vars);
00047|   assert (c_handle.captures_mutable = []);
00048|   assert (List.mem "cachedGet" c_handle.called_functions);
00049|   assert (List.mem "put" c_handle.called_functio...

<file>
00001| # TypeScript to JSON AST Research Findings
00002| 
00003| **Date:** 2026-02-06  
00004| **Purpose:** Evaluate approaches for parsing TypeScript code into JSON AST for CloudLang compiler
00005| 
00006| ## Executive Summary
00007| 
00008| There are **three main approaches** to generate JSON AST from TypeScript:
00009| 
00010| 1. **Native TypeScript Compiler API** (`ts.createSourceFile` + manual serialization)
00011| 2. **@typescript-eslint/typescript-estree** (ESTree-compatible)
00012| 3. **@babel/parser** with TypeScript plugin (ESTree-compatible)
00013| 
00014| **Recommendation:** Use `@typescript-eslint/typescript-estree` for OCaml integration.
00015| 
00016| ---
00017| 
00018| ## 1. Approaches Comparison
00019| 
00020| ### 1.1 Native TypeScript Compiler API
00021| 
00022| ```typescript
00023| import * as ts from 'typescript';
00024| 
00025| const code = `const x = 42;`;
00026| const sourceFile = ts.createSourceFile(
00027|   'file.ts',
00028|   code,
00029|   ts.ScriptTarget.Latest,
00030|   true
00031| );
00032| 
00033| // Manual serialization required (circular references!)
00034| const getCircularReplacer = () => {
00035|   const seen = new WeakSet();
00036|   return (key, value) => {
00037|     if (typeof value === "object" && value !== null) {
00038|       if (seen.has(value)) return;
00039|       seen.add(value);
00040|     }
00041|     return value;
00042|   };
00043| };
00044| 
00045| const json = JSON.stringify(sourceFile, getCircularReplacer());
00046| ```
00047| 
00048| **Pros:**
00049| - Direct access to TypeScript's native AST
00050| - Full type information available
00051| - Most accurate TypeScript semantics
00052| 
00053| **Cons:**
00054| - ❌ **Circular references** require custom serialization
00055| - ❌ Non-standard AST format (TypeScript-specific)
00056| - ❌ Irregular structure, harder to deserialize in OCaml
00057| - ❌ No official JSON output from `tsc` (as of 2026, still not supported)
00058| 
00059| ### 1.2 @typescript-eslint/ty...

<file>
00001| # TypeScript JSON AST - Quick Reference
00002| 
00003| ## TL;DR
00004| 
00005| ✅ **Use `@typescript-eslint/typescript-estree`** for CloudLang compiler
00006| 
00007| **Why?**
00008| - Clean JSON output (no circular references)
00009| - ESTree standard format (well-documented)
00010| - Best for OCaml deserialization (consistent structure)
00011| - Battle-tested (used by ESLint, Prettier)
00012| 
00013| ---
00014| 
00015| ## The Three Approaches
00016| 
00017| ```
00018| ┌─────────────────────────────────────────────────────────────────┐
00019| │  Approach               │ JSON Output │ OCaml-friendly │ Status  │
00020| ├─────────────────────────┼─────────────┼────────────────┼─────────┤
00021| │ Native TS Compiler API  │ ❌ Circular │ ❌ Irregular   │ ❌ Skip │
00022| │ typescript-estree       │ ✅ Clean    │ ✅ Excellent   │ ✅ USE  │
00023| │ Babel + TS plugin       │ ✅ Clean    │ ✅ Good        │ ⚠️ OK   │
00024| └─────────────────────────────────────────────────────────────────┘
00025| ```
00026| 
00027| ---
00028| 
00029| ## Example JSON Outputs
00030| 
00031| ### Input: `const fn = (x: number) => x + 1;`
00032| 
00033| **typescript-estree output structure:**
00034| 
00035| ```json
00036| {
00037|   "type": "Program",
00038|   "body": [
00039|     {
00040|       "type": "VariableDeclaration",
00041|       "declarations": [{
00042|         "type": "VariableDeclarator",
00043|         "id": { "type": "Identifier", "name": "fn" },
00044|         "init": {
00045|           "type": "ArrowFunctionExpression",
00046|           "params": [{
00047|             "type": "Identifier",
00048|             "name": "x",
00049|             "typeAnnotation": {
00050|               "type": "TSTypeAnnotation",
00051|               "typeAnnotation": { "type": "TSNumberKeyword" }
00052|             }
00053|           }],
00054|           "body": {
00055|             "type": "BinaryExpression",
00056|             "operator": "+",
00057|             "left": { "type": "Identifier"...

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<file>
00001| type binding =
00002|   | D1Binding of { name : string; database_id : string }
00003|   | KVBinding of { name : string; namespace_id : string }
00004|   | R2Binding of { name : string; bucket_name : string }
00005|   | ServiceBinding of { name : string; service : string }
00006| 
00007| type worker = {
00008|   name : string;
00009|   script : string;
00010|   bindings : binding list;
00011|   routes : string list;
00012| }
00013| 
00014| type durable_object = { class_name : string; script : string }
00015| type r2_bucket = { name : string; location : string }
00016| type d1_database = { name : string; schema : string }
00017| 
00018| type resource =
00019|   | Worker of worker
00020|   | DurableObject of durable_object
00021|   | R2Bucket of r2_bucket
00022|   | D1Database of d1_database
00023| 
00024| type config = resource list
00025| 

(End of file - total 25 lines)
</file>

<file>
00001| type binding =
00002|   | D1Binding of { name : string; database_id : string }
00003|   | KVBinding of { name : string; namespace_id : string }
00004|   | R2Binding of { name : string; bucket_name : string }
00005|   | ServiceBinding of { name : string; service : string }
00006| 
00007| type worker = {
00008|   name : string;
00009|   script : string;
00010|   bindings : binding list;
00011|   routes : string list;
00012| }
00013| 
00014| type durable_object = { class_name : string; script : string }
00015| type r2_bucket = { name : string; location : string }
00016| type d1_database = { name : string; schema : string }
00017| 
00018| type resource =
00019|   | Worker of worker
00020|   | DurableObject of durable_object
00021|   | R2Bucket of r2_bucket
00022|   | D1Database of d1_database
00023| 
00024| type config = resource list
00025| 

(End of file - total 25 lines)
</file>

<file>
00001| (** Closure decomposition: scope analysis -> Worker groups -> IR.
00002| 
00003|     Algorithm: 1. Seed groups from mutable state: functions that capture the
00004|     same mutable variable are placed in the same group. 2. Remaining functions
00005|     (no mutable captures) become their own group. 3. Cross-group function calls
00006|     become service binding dependencies. 4. Convert groups to IR Workers with KV
00007|     and service bindings. *)
00008| 
00009| type worker_group = {
00010|   name : string;
00011|   functions : string list;
00012|   owned_state : string list;
00013|   service_deps : string list;
00014| }
00015| 
00016| (** Find which group a function belongs to. *)
00017| let find_group_of_function (groups : worker_group list) (fn_name : string) :
00018|     string option =
00019|   List.find_map
00020|     (fun g -> if List.mem fn_name g.functions then Some g.name else None)
00021|     groups
00022| 
00023| (** Derive a group name from the mutable state variable name. e.g. "store" ->
00024|     "storage", "cache" -> "cache" *)
00025| let group_name_of_state (state_var : string) : string =
00026|   if state_var = "store" then "storage" else state_var
00027| 
00028| (** Decompose scope analysis results into Worker groups. *)
00029| let decompose (analysis : Scope.analysis_result) : worker_group list =
00030|   let closures = analysis.closures in
00031| 
00032|   (* Step 1: Build mutable-state -> functions mapping.
00033|      Each mutable state variable seeds a group containing all functions
00034|      that directly capture it. *)
00035|   let all_mutable =
00036|     String_list.dedup_preserve_order
00037|       (List.concat_map
00038|          (fun (c : Scope.closure_info) -> c.captures_mutable)
00039|          closures)
00040|   in
00041|   let state_groups =
00042|     List.map
00043|       (fun state_var ->
00044|         let fns =
00045|           List.filter_map
00046|             (fun (c : Scope.closure_info) ->
00047|      ...

<file>
00001| (** Deduplicate a string list while preserving first-occurrence order. *)
00002| let dedup_preserve_order (xs : string list) : string list =
00003|   let seen = Hashtbl.create (List.length xs) in
00004|   List.rev
00005|     (List.fold_left
00006|        (fun acc x ->
00007|          if Hashtbl.mem seen x then acc
00008|          else (
00009|            Hashtbl.add seen x ();
00010|            x :: acc))
00011|        [] xs)
00012| 

(End of file - total 12 lines)
</file>

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<file>
00001| (library
00002|  (name cloudlang))
00003| 

(End of file - total 3 lines)
</file>

<file>
00001| (test
00002|  (name test_cloudlang)
00003|  (libraries cloudlang))
00004| 

(End of file - total 4 lines)
</file>

/home/jm/data/ai/cloudlang/bin/dune

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<file>
00001| (executable
00002|  (public_name cloudlang)
00003|  (name main)
00004|  (libraries cloudlang))
00005| 

(End of file - total 5 lines)
</file>

<skill_content name="jsont">
# Skill: jsont

# Jsont JSON Encoding/Decoding

## Dependencies

```dune
(libraries jsont jsont.bytesrw)
```

## Core Patterns

### Simple Object Codec

Map a JSON object to an OCaml record using `Jsont.Object.map` with `mem` for required fields:

```ocaml
type header = {
  message_id : string;
  method_ : string;
  timestamp : int;
}

let header_codec =
  Jsont.Object.map ~kind:"header"
    (fun message_id method_ timestamp -> { message_id; method_; timestamp })
  |> Jsont.Object.mem "messageId" Jsont.string ~enc:(fun h -> h.message_id)
  |> Jsont.Object.mem "method" Jsont.string ~enc:(fun h -> h.method_)
  |> Jsont.Object.mem "timestamp" Jsont.int ~enc:(fun h -> h.timestamp)
  |> Jsont.Object.finish
```

### Optional Fields

Use `opt_mem` for optional JSON fields. The constructor receives `'a option`:

```ocaml
type config = {
  name : string;
  timeout : int;  (* default if missing *)
}

let config_codec =
  Jsont.Object.map ~kind:"config"
    (fun name timeout_opt ->
      { name; timeout = Option.value ~default:30 timeout_opt })
  |> Jsont.Object.mem "name" Jsont.string ~enc:(fun c -> c.name)
  |> Jsont.Object.opt_mem "timeout" Jsont.int ~enc:(fun c -> Some c.timeout)
  |> Jsont.Object.finish
```

### Skip Unknown Fields

Use `skip_unknown` before `finish` to ignore extra JSON fields (tolerant parsing):

```ocaml
let tolerant_codec =
  Jsont.Object.map ~kind:"data" (fun id -> { id })
  |> Jsont.Object.mem "id" Jsont.string ~enc:(fun d -> d.id)
  |> Jsont.Object.skip_unknown  (* ignore extra fields *)
  |> Jsont.Object.finish
```

### Nested Objects

Compose codecs for nested structures:

```ocaml
type request = { header : header; payload : payload }

let request_codec payload_codec =
  Jsont.Object.map ~kind:"request" (fun header payload -> { header; payload })
  |> Jsont.Object.mem "header" header_codec ~enc:(fun r -> r.header)
  |> Jsont.Object.mem "payload" payload_codec ~enc:(fun r -> r.payload)
  |> Jsont.Object.finish
```

###...

## [PDF] BACHELOR THESIS Client side scripting using meta-programming
https://tomasp.net/articles/webtools-thesis/fswebtools.pdf

Contents Chapter 1: Introduction..................................................................................................5 1.1 What Makes Web Applications Hard................................................................ ... ....................................................................................................9 2.1 F# Language and Runtime................................................................ ... ................................................................................25 3.1 Language Impedance M ... Server Integration.........................................................................................52 6.4 Serialization and Mixed Types................................................................ ... Composable Components........................................................................................67 Chapter 7: Key Language Features Used................................................................69 7.1 Heterogeneous Execution........................................................................................69 7.2 Non-Standard Computations..................................................................................70 7.3 Members ... 3 Title: Client side scripting using meta-programming
Author: Tomáš Pet ... .cuni.cz Abstract: “Ajax” programming is becoming a de-facto standard for certain types of web applications, but unfortunately developing this kind of application is a difficult task. Developers have to deal with problems like a language impedance mismatch, limited execution runtime in ... web application, which makes it possible to develop client-side code in a type-safe ... separation of client and server-side code, tracking this separation through the F# type system. Keywords: ML; F#; Meta-programming; Ajax; Web Development; Language 
Impedance Mismatch Název pr...

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# Packages matching: installed
# Name                  # Installed # Synopsis
alcotest                1.9.1       Alcotest is a lightweight and colourful test framework
angstrom                0.16.1      Parser combinators built for speed and memory-efficiency
asn1-combinators        0.3.2       Embed typed ASN.1 grammars in OCaml
astring                 0.8.5       Alternative String module for OCaml
base                    v0.17.3     Full standard library replacement for OCaml
base-bigarray           base
base-bytes              base        Bytes library distributed with the OCaml compiler
base-domains            base
base-effects            base
base-nnp                base        Naked pointers prohibited in the OCaml heap
base-threads            base
base-unix               base
base64                  3.5.2       Base64 encoding for OCaml
bigstringaf             0.10.0      Bigstring intrinsics and fast blits based on memcpy/memmove
bos                     0.2.1       Basic OS interaction for OCaml
ca-certs                1.0.1       Detect root CA certificates from the operating system
camlp-streams           5.0.1       The Stream and Genlex libraries for use with Camlp4 and Camlp5
chrome-trace            3.21.0      Chrome trace event generation library
cmarkit                 0.4.0       CommonMark parser and renderer for OCaml
cmdliner                2.1.0       Declarative definition of command line interfaces for OCaml
cohttp                  6.2.1       An OCaml library for HTTP clients and servers
cohttp-lwt              6.2.1       CoHTTP implementation using the Lwt concurrency library
cohttp-lwt-unix         6.2.1       CoHTTP implementation for Unix and Windows using Lwt
conduit                 8.0.0       A network connection establishment library
conduit-lwt             8.0.0       A portable network connection establishment library using Lwt
conduit-lwt-unix        8.0.0       A network connection establishment library for Lwt_unix
conf-gmp  ...

/tmp/bun-node-1e86cebd7/node
node not found

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jsonrpc                 1.25.0      Jsonrpc protocol implementation
ppx_deriving_yojson     3.10.0      JSON codec generator for OCaml
ppx_yojson              1.3.0       PPX extension for Yojson literals and patterns
ppx_yojson_conv_lib     v0.17.0     Runtime lib for ppx_yojson_conv
yojson                  3.0.0       Yojson is an optimized parsing and printing library for the JSON format

/tmp/bun-node-1e86cebd7/bun
1.3.5

which: no npx in (/home/jm/data/code/opencode/packages/opencode/node_modules/.bin:/home/jm/data/code/opencode/packages/opencode/node_modules/.bin:/home/jm/data/code/opencode/packages/node_modules/.bin:/home/jm/data/code/opencode/node_modules/.bin:/home/jm/data/code/node_modules/.bin:/home/jm/data/node_modules/.bin:/home/jm/node_modules/.bin:/home/node_modules/.bin:/node_modules/.bin:/tmp/bun-node-1e86cebd7:/home/jm/data/code/opencode/node_modules/.bin:/home/jm/data/code/opencode/node_modules/.bin:/home/jm/data/code/node_modules/.bin:/home/jm/data/node_modules/.bin:/home/jm/node_modules/.bin:/home/node_modules/.bin:/node_modules/.bin:/home/jm/.bun/bin:/home/jm/.local/share/pnpm:/home/jm/.local/bin:/usr/bin:/usr/local/bin:/bin:/usr/sbin:/sbin)
npx not found

jsonrpc                 1.25.0      Jsonrpc protocol implementation
ppx_deriving_yojson     3.10.0      JSON codec generator for OCaml
ppx_yojson              1.3.0       PPX extension for Yojson literals and patterns
ppx_yojson_conv_lib     v0.17.0     Runtime lib for ppx_yojson_conv
yojson                  3.0.0       Yojson is an optimized parsing and printing library for the JSON format

/tmp/bun-node-1e86cebd7/bun
1.3.5

which: no npx in (/home/jm/data/code/opencode/packages/opencode/node_modules/.bin:/home/jm/data/code/opencode/packages/opencode/node_modules/.bin:/home/jm/data/code/opencode/packages/node_modules/.bin:/home/jm/data/code/opencode/node_modules/.bin:/home/jm/data/code/node_modules/.bin:/home/jm/data/node_modules/.bin:/home/jm/node_modules/.bin:/home/node_modules/.bin:/node_modules/.bin:/tmp/bun-node-1e86cebd7:/home/jm/data/code/opencode/node_modules/.bin:/home/jm/data/code/opencode/node_modules/.bin:/home/jm/data/code/node_modules/.bin:/home/jm/data/node_modules/.bin:/home/jm/node_modules/.bin:/home/node_modules/.bin:/node_modules/.bin:/home/jm/.bun/bin:/home/jm/.local/share/pnpm:/home/jm/.local/bin:/usr/bin:/usr/local/bin:/bin:/usr/sbin:/sbin)
npx not found

All 2 tools executed successfully.

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<><> jsont: information on all versions <><><><><><><><><><><><><><><><><><><><>
name         jsont
all-versions 0.1.1  0.2.0

<><> Version-specific details <><><><><><><><><><><><><><><><><><><><><><><><><>
version      0.2.0
repository   default
url.src      "https://erratique.ch/software/jsont/releases/jsont-0.2.0.tbz"
url.checksum "sha512=6206f73a66cb170b560a72e58f70b9fb2c20397b9ab819dceba49b6602b9b79e47ba307e6910e61ca4694555c66fdcd7a17490afb99548e8f43845a5a88913e7"
homepage     "https://erratique.ch/software/jsont"
doc          "https://erratique.ch/software/jsont/doc"
bug-reports  "https://github.com/dbuenzli/jsont/issues"
dev-repo     "git+https://erratique.ch/repos/jsont.git"
authors      "The jsont programmers"
maintainer   "Daniel Bünzli <daniel.buenzl i@erratique.ch>"
license      "ISC"
tags         "json" "codec" "org:erratique"
depends      "ocaml" {>= "4.14.0"}
             "ocamlfind" {build}
             "ocamlbuild" {build}
             "topkg" {build & >= "1.1.0"}
             "b0" {dev & with-test}
depopts      "cmdliner" "brr" "bytesrw"
conflicts    "cmdliner" {< "1.3.0"} "brr" {< "0.0.6"}
synopsis     Declarative JSON data manipulation for OCaml
description  Jsont is an OCaml library for declarative JSON data manipulation. It
             provides:
             - Combinators for describing JSON data using the OCaml values of your
               choice. The descriptions can be used by generic functions to

# Packages matching: name-match(jsont) & available
# Name # Installed # Synopsis
jsont  --          Declarative JSON data manipulation for OCaml

<><> jsont: information on all versions <><><><><><><><><><><><><><><><><><><><>
name         jsont
all-versions 0.1.1  0.2.0

<><> Version-specific details <><><><><><><><><><><><><><><><><><><><><><><><><>
version      0.2.0
repository   default
url.src      "https://erratique.ch/software/jsont/releases/jsont-0.2.0.tbz"
url.checksum "sha512=6206f73a66cb170b560a72e58f70b9fb2c20397b9ab819dceba49b6602b9b79e47ba307e6910e61ca4694555c66fdcd7a17490afb99548e8f43845a5a88913e7"
homepage     "https://erratique.ch/software/jsont"
doc          "https://erratique.ch/software/jsont/doc"
bug-reports  "https://github.com/dbuenzli/jsont/issues"
dev-repo     "git+https://erratique.ch/repos/jsont.git"
authors      "The jsont programmers"
maintainer   "Daniel Bünzli <daniel.buenzl i@erratique.ch>"
license      "ISC"
tags         "json" "codec" "org:erratique"
depends      "ocaml" {>= "4.14.0"}
             "ocamlfind" {build}
             "ocamlbuild" {build}
             "topkg" {build & >= "1.1.0"}
             "b0" {dev & with-test}
depopts      "cmdliner" "brr" "bytesrw"
conflicts    "cmdliner" {< "1.3.0"} "brr" {< "0.0.6"}
synopsis     Declarative JSON data manipulation for OCaml
description  Jsont is an OCaml library for declarative JSON data manipulation. It
             provides:
             - Combinators for describing JSON data using the OCaml values of your
               choice. The descriptions can be used by generic functions to

# Packages matching: name-match(jsont) & available
# Name # Installed # Synopsis
jsont  --          Declarative JSON data manipulation for OCaml

Object (jsont.Jsont.Object)Up – Index » jsont » Jsont » ObjectModule Jsont.ObjectMapping JSON objects.MapsMembersCase objectsUnknown membersJSON typesMapstype ('o, 'dec) mapThe type for mapping JSON objects to values of type 'o. The 'dec type is used to construct 'o from members see mem.val map : ?kind:string -> ?doc:string -> 'dec -> ('o, 'dec) mapmap dec is an empty JSON object decoded by function dec.kind names the entities represented by the map and doc documents them. Both default to "".dec is a constructor eventually returning a value of type 'o to be saturated with calls to mem, case_mem or keep_unknown. This is needed for decoding. Use enc_only if the result is only used for encoding.val map' : 
  ?kind:string ->
  ?doc:string ->
  ?enc_meta:('o -> Meta.t) ->
  (Meta.t -> 'dec) ->
  ('o, 'dec) mapmap' dec is like map except you get the object's decoding metdata in dec and enc_meta is used to recover it on encoding.val enc_only : 
  ?kind:string ->
  ?doc:string ->
  ?enc_meta:('o -> Meta.t) ->
  unit ->
  ('o, 'a) mapenc_only () is like map' but can only be used for encoding.val finish : ('o, 'o) map -> 'o tfinish map is a JSON type for objects mapped by map. Raises Invalid_argument if map describes a member name more than once.Membersmodule Mem : sig ... endMember maps.val mem : 
  ?doc:string ->
  ?dec_absent:'a ->
  ?enc:('o -> 'a) ->
  ?enc_omit:('a -> bool) ->
  string ->
  'a t ->
  ('o, 'a -> 'b) map ->
  ('o, 'b) mapmem name t map is a member named name of type t for an object of type 'o being constructed by map.doc is a documentation string for the member. Defaults to "".dec_absent, if specified, is the value used for the decoding direction when the member named name is missing. If unspecified decoding errors when the member is absent. S...

cookbook (jsont.cookbook)Up – Index » jsont » cookbookJsont cookbookA few conventions and recipes to describe JSON data with Jsont.ConventionsNaming Jsont.t valuesGeneral tipsErroringDealing with null valuesDealing with numbersInteger numbersNon-finite numbersTransforming base typesTransforming stringsDealing with arraysDealing with objectsObjects as recordsObjects as key-value mapsOptional membersUnknown object membersSkippingErroringKeepingObject types or classesUntagged object typesFlattening nested objectsDealing with recursive JSONConventionsNaming Jsont.t valuesGiven an OCaml type t its JSON type value should be called t_jsont. If your type follows the M.t module convention use M.jsont.General tipsNote that constructing Jsont.t values has a cost. In particular when object descriptions are Jsont.Object.finished a few checks are performed on the definition. Hence it's better to construct them as toplevel values or at least make sure you are not repeatedly constructing them dynamically in a tight loop.ErroringJsont types are full of your functions that you specify to implement the decoding and encoding process (e.g. base map decoding and encoding functions, object map constructors, object map member projectors, etc.). In general in any of these functions it is always safe to error by raising the Jsont.Error exception if you need to.Use the functions in the Jsont.Error to format error messages. They usually require to specify a Jsont.Meta.t value to precisely locate the error. If you have none to provide simply use Jsont.Meta.none.Dealing with null valuesNullable JSON values are naturally mapped to ocaml option types. The Jsont.option combinator does exactly that.It is also possible to map JSON nulls to a default value with Jsont.null. This can then be combined with Jsont.any to compose with other JSON types.For example the following maps JSON nulls to "" and JSON strings to string on decoding. On encoding we unconditionally map back "...

User has answered your questions: "Before I finalize the plan, a key design choice: jsont (not yet installed) has a clean `case_mem` combinator for discriminated unions keyed on `"type"` which maps perfectly to ESTree. However, yojson is already installed and you also have ppx_deriving_yojson. Which JSON library approach do you prefer for the ESTree deserializer?"="jsont (Recommended)". You can now continue with the user's answers in mind.

User has answered your questions: "For the Node.js bridge script that runs typescript-estree, you have bun (1.3.5) available but not a standalone node/npx. The OCaml side will shell out to run this script. Should the bridge script be designed for bun, or should we ensure node compatibility too?"="Bun only (Recommended)". You can now continue with the user's answers in mind.

User has answered your questions: "The jsont case_mem pattern requires that each ESTree node type has its own jsont object description. With 17 AST variants, should the bridge module: (A) define a single recursive `node` jsont that mirrors the existing `Ast.node` type exactly, or (B) define intermediate ESTree-specific types that are then converted to `Ast.node` in a separate pass? Option A means the deserializer produces `Ast.node` directly. Option B means there's an intermediate representation that could handle ESTree quirks (e.g., type annotations, `expression` field on arrow functions) before converting to the simpler CloudLang AST."="Direct to Ast.node (Recommended)". You can now continue with the user's answers in mind.

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<file>
00001| type binding =
00002|   | D1Binding of { name : string; database_id : string }
00003|   | KVBinding of { name : string; namespace_id : string }
00004|   | R2Binding of { name : string; bucket_name : string }
00005|   | ServiceBinding of { name : string; service : string }
00006| 
00007| type do_marker =
00008|   | SerialConflictHotspot
00009|   | GlobalSingletonNeeded
00010|   | EntityAffinityKeyed of { key_hint : string option }
00011|   | StrictOrderingRequired
00012|   | ConsistencyBoundaryCrossed
00013|   | RealtimeFanout
00014|   | DurableTimerNeeded
00015|   | HighFanInCoordinator
00016|   | StatelessFastPathPreferWorker
00017| 
00018| type coordination_intent =
00019|   | PerEntitySerial of { key_expr : string; reason : string }
00020|   | GlobalSingleton of { name : string; reason : string }
00021|   | RealtimeRoom of { room_key_expr : string }
00022|   | ScheduledQueue of { queue_key_expr : string }
00023| 
00024| type routing_policy =
00025|   | DeterministicName of { key_expr : string }
00026|   | ShardedName of { key_expr : string; shards : int }
00027|   | UniqueIdPool of { pool : string }
00028| 
00029| type storage_backend = DoSqlite | DoSyncKv
00030| type alarm_mode = NoAlarm | SingleAlarm | QueuedAlarm
00031| 
00032| type durability_policy = {
00033|   storage_backend : storage_backend;
00034|   alarm_mode : alarm_mode;
00035|   pitr_required : bool;
00036| }
00037| 
00038| type do_annotation = {
00039|   class_name : string;
00040|   binding_name : string;
00041|   markers : do_marker list;
00042|   intent : coordination_intent;
00043|   routing : routing_policy;
00044|   durability : durability_policy;
00045|   do_fit_score : int;
00046|   reasons : string list;
00047| }
00048| 
00049| type worker = {
00050|   name : string;
00051|   script : string;
00052|   bindings : binding list;
00053|   routes : string list;
00054|   do_annotation : do_annotation option;
00055| }
00056| 
00057| type durable_object = { class_name : string; scrip...

<file>
00001| type binding =
00002|   | D1Binding of { name : string; database_id : string }
00003|   | KVBinding of { name : string; namespace_id : string }
00004|   | R2Binding of { name : string; bucket_name : string }
00005|   | ServiceBinding of { name : string; service : string }
00006| 
00007| type do_marker =
00008|   | SerialConflictHotspot
00009|   | GlobalSingletonNeeded
00010|   | EntityAffinityKeyed of { key_hint : string option }
00011|   | StrictOrderingRequired
00012|   | ConsistencyBoundaryCrossed
00013|   | RealtimeFanout
00014|   | DurableTimerNeeded
00015|   | HighFanInCoordinator
00016|   | StatelessFastPathPreferWorker
00017| 
00018| type coordination_intent =
00019|   | PerEntitySerial of { key_expr : string; reason : string }
00020|   | GlobalSingleton of { name : string; reason : string }
00021|   | RealtimeRoom of { room_key_expr : string }
00022|   | ScheduledQueue of { queue_key_expr : string }
00023| 
00024| type routing_policy =
00025|   | DeterministicName of { key_expr : string }
00026|   | ShardedName of { key_expr : string; shards : int }
00027|   | UniqueIdPool of { pool : string }
00028| 
00029| type storage_backend = DoSqlite | DoSyncKv
00030| type alarm_mode = NoAlarm | SingleAlarm | QueuedAlarm
00031| 
00032| type durability_policy = {
00033|   storage_backend : storage_backend;
00034|   alarm_mode : alarm_mode;
00035|   pitr_required : bool;
00036| }
00037| 
00038| type do_annotation = {
00039|   class_name : string;
00040|   binding_name : string;
00041|   markers : do_marker list;
00042|   intent : coordination_intent;
00043|   routing : routing_policy;
00044|   durability : durability_policy;
00045|   do_fit_score : int;
00046|   reasons : string list;
00047| }
00048| 
00049| type worker = {
00050|   name : string;
00051|   script : string;
00052|   bindings : binding list;
00053|   routes : string list;
00054|   do_annotation : do_annotation option;
00055| }
00056| 
00057| type durable_object = { class_name : string; scrip...

<file>
00001| (** Closure decomposition: scope analysis -> Worker groups -> IR.
00002| 
00003|     Algorithm: 1. Seed groups from mutable state: functions that capture the
00004|     same mutable variable are placed in the same group. 2. Remaining functions
00005|     (no mutable captures) become their own group. 3. Cross-group function calls
00006|     become service binding dependencies. 4. Convert groups to IR Workers with KV
00007|     and service bindings. *)
00008| 
00009| type worker_group = {
00010|   name : string;
00011|   functions : string list;
00012|   owned_state : string list;
00013|   service_deps : string list;
00014| }
00015| 
00016| (** Find which group a function belongs to. *)
00017| let find_group_of_function (groups : worker_group list) (fn_name : string) :
00018|     string option =
00019|   List.find_map
00020|     (fun g -> if List.mem fn_name g.functions then Some g.name else None)
00021|     groups
00022| 
00023| (** Derive a group name from the mutable state variable name. e.g. "store" ->
00024|     "storage", "cache" -> "cache" *)
00025| let group_name_of_state (state_var : string) : string =
00026|   if state_var = "store" then "storage" else state_var
00027| 
00028| let clamp_score (score : int) : int = max 0 (min 100 score)
00029| 
00030| let contains_substr (s : string) (sub : string) : bool =
00031|   let len_s = String.length s in
00032|   let len_sub = String.length sub in
00033|   if len_sub = 0 then true
00034|   else if len_sub > len_s then false
00035|   else
00036|     let rec loop i =
00037|       if i > len_s - len_sub then false
00038|       else if String.sub s i len_sub = sub then true
00039|       else loop (i + 1)
00040|     in
00041|     loop 0
00042| 
00043| let any_name_matches (names : string list) (keywords : string list) : bool =
00044|   List.exists
00045|     (fun name ->
00046|       let lowered = String.lowercase_ascii name in
00047|       List.exists (fun keyword -> contains_substr lowered keyword) keyword...

<file>
00001| (** Closure decomposition: scope analysis results -> IR config.
00002| 
00003|     Groups closures into Workers based on shared mutable state, generates KV
00004|     bindings for mutable state and service bindings for cross-group function
00005|     calls. *)
00006| 
00007| type worker_group = {
00008|   name : string;
00009|   functions : string list;
00010|   owned_state : string list;
00011|   service_deps : string list;
00012| }
00013| (** A logical group of functions that will become a single Worker. *)
00014| 
00015| val decompose : Scope.analysis_result -> worker_group list
00016| 
00017| val do_fit_score : worker_group -> Scope.analysis_result -> int
00018| (** [do_fit_score group analysis] is a heuristic score in [0, 100] indicating
00019|     how well [group] fits Durable Object coordination semantics. *)
00020| 
00021| val infer_do_annotation :
00022|   worker_group -> Scope.analysis_result -> Ir.do_annotation option
00023| (** [infer_do_annotation group analysis] derives a Durable Object hint for
00024|     [group] when the fit score is high enough. *)
00025| 
00026| val to_ir : worker_group list -> Scope.analysis_result -> Ir.config
00027| 

(End of file - total 27 lines)
</file>

<file>
00001| module Ast = Ast
00002| module Ir = Ir
00003| module Scope = Scope
00004| module Decompose = Decompose
00005| 
00006| type error = string
00007| 
00008| (** Analyse a TypeScript AST and decompose it into Worker groups. *)
00009| let analyze (program : Ast.node) : (Scope.analysis_result, error) result =
00010|   Scope.analyze program
00011|   |> Result.map_error (fun err ->
00012|       Printf.sprintf "analysis error: %s" (Scope.error_to_string err))
00013| 
00014| (** Decompose analysis results into Worker groups and convert to IR. *)
00015| let compile (analysis : Scope.analysis_result) : (Ir.config, error) result =
00016|   let groups = Decompose.decompose analysis in
00017|   Ok (Decompose.to_ir groups analysis)
00018| 
00019| (* --- Code generation: IR -> output string --- *)
00020| 
00021| (** Generate a JSON-style wrangler configuration for a binding. *)
00022| let generate_binding_json (b : Ir.binding) : string =
00023|   match b with
00024|   | Ir.D1Binding { name; database_id } ->
00025|       Printf.sprintf {|    { "binding": "%s", "database_id": "%s" }|} name
00026|         database_id
00027|   | Ir.KVBinding { name; namespace_id } ->
00028|       Printf.sprintf {|    { "binding": "%s", "id": "%s" }|} name namespace_id
00029|   | Ir.R2Binding { name; bucket_name } ->
00030|       Printf.sprintf {|    { "binding": "%s", "bucket_name": "%s" }|} name
00031|         bucket_name
00032|   | Ir.ServiceBinding { name; service } ->
00033|       Printf.sprintf {|    { "binding": "%s", "service": "%s" }|} name service
00034| 
00035| let string_of_do_marker (marker : Ir.do_marker) : string =
00036|   match marker with
00037|   | Ir.SerialConflictHotspot -> "serial_conflict_hotspot"
00038|   | Ir.GlobalSingletonNeeded -> "global_singleton_needed"
00039|   | Ir.EntityAffinityKeyed _ -> "entity_affinity_keyed"
00040|   | Ir.StrictOrderingRequired -> "strict_ordering_required"
00041|   | Ir.ConsistencyBoundaryCrossed -> "consistency_boundary_crossed"
00042|...

<file>
00001| (** CloudLang: TypeScript -> Cloudflare Worker decomposition compiler.
00002| 
00003|     Pipeline: 1. [analyze]: TypeScript ESTree AST -> scope/closure analysis 2.
00004|     [compile]: analysis result -> IR config (Workers + bindings) 3. [generate]:
00005|     IR config -> output string (wrangler configs + TS scripts) *)
00006| 
00007| module Ast = Ast
00008| module Ir = Ir
00009| module Scope = Scope
00010| module Decompose = Decompose
00011| 
00012| type error = string
00013| 
00014| val analyze : Ast.node -> (Scope.analysis_result, error) result
00015| val compile : Scope.analysis_result -> (Ir.config, error) result
00016| val generate : Ir.config -> string
00017| 

(End of file - total 17 lines)
</file>

8f053a08 Various style and cleanup changes.
3c403430 Built first proper example. Target language is now typescript.
37b80f1e Start.

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<file>
00001| let get_worker name config =
00002|   match
00003|     List.find_map
00004|       (function
00005|         | Cloudlang.Ir.Worker w when w.name = name -> Some w | _ -> None)
00006|       config
00007|   with
00008|   | Some w -> w
00009|   | None -> failwith (Printf.sprintf "missing worker: %s" name)
00010| 
00011| let run () =
00012|   let program = Fixture.build_kv_store_ast () in
00013|   let analysis = Fixture.analyze_exn program in
00014|   let config = Fixture.compile_exn analysis in
00015| 
00016|   assert (List.length config = 3);
00017| 
00018|   List.iter
00019|     (function
00020|       | Cloudlang.Ir.Worker _ -> ()
00021|       | _ -> failwith "expected only Worker resources")
00022|     config;
00023| 
00024|   let w_storage = get_worker "storage" config in
00025|   assert (
00026|     List.exists
00027|       (function
00028|         | Cloudlang.Ir.KVBinding { name = "STORE"; namespace_id } ->
00029|             namespace_id = "cloudlang-store"
00030|         | _ -> false)
00031|       w_storage.bindings);
00032|   assert (w_storage.routes = []);
00033| 
00034|   let w_cache = get_worker "cache" config in
00035|   assert (
00036|     List.exists
00037|       (function
00038|         | Cloudlang.Ir.KVBinding { name = "CACHE"; namespace_id } ->
00039|             namespace_id = "cloudlang-cache"
00040|         | _ -> false)
00041|       w_cache.bindings);
00042|   assert (
00043|     List.exists
00044|       (function
00045|         | Cloudlang.Ir.ServiceBinding { name = "STORAGE"; service } ->
00046|             service = "storage"
00047|         | _ -> false)
00048|       w_cache.bindings);
00049|   assert (w_cache.routes = []);
00050| 
00051|   let w_api = get_worker "handleRequest" config in
00052|   assert (
00053|     List.exists
00054|       (function
00055|         | Cloudlang.Ir.ServiceBinding { name = "CACHE"; service } ->
00056|             service = "cache"
00057|         | _ -> false)
00058|       w_api.bindings);
00059|   asse...

<file>
00001| let run () =
00002|   let program = Fixture.build_kv_store_ast () in
00003|   let analysis = Fixture.analyze_exn program in
00004|   let groups = Cloudlang.Decompose.decompose analysis in
00005| 
00006|   assert (List.length groups = 3);
00007| 
00008|   let get_group name =
00009|     List.find
00010|       (fun (g : Cloudlang.Decompose.worker_group) -> g.name = name)
00011|       groups
00012|   in
00013| 
00014|   let g_storage = get_group "storage" in
00015|   assert (List.mem "put" g_storage.functions);
00016|   assert (List.mem "get" g_storage.functions);
00017|   assert (g_storage.owned_state = [ "store" ]);
00018|   assert (g_storage.service_deps = []);
00019| 
00020|   let g_cache = get_group "cache" in
00021|   assert (g_cache.functions = [ "cachedGet" ]);
00022|   assert (g_cache.owned_state = [ "cache" ]);
00023|   assert (List.mem "storage" g_cache.service_deps);
00024| 
00025|   let g_api = get_group "handleRequest" in
00026|   assert (g_api.functions = [ "handleRequest" ]);
00027|   assert (g_api.owned_state = []);
00028|   assert (List.mem "cache" g_api.service_deps);
00029|   assert (List.mem "storage" g_api.service_deps)
00030| 

(End of file - total 30 lines)
</file>

<file>
00001| let run () =
00002|   let program = Fixture.build_kv_store_ast () in
00003|   let analysis = Fixture.analyze_exn program in
00004|   let config = Fixture.compile_exn analysis in
00005|   let output = Cloudlang.generate config in
00006| 
00007|   assert (Fixture.has_substr output {|"name": "storage"|});
00008|   assert (Fixture.has_substr output {|"name": "cache"|});
00009|   assert (Fixture.has_substr output {|"name": "handleRequest"|});
00010| 
00011|   assert (Fixture.has_substr output {|"binding": "STORE"|});
00012|   assert (Fixture.has_substr output {|"id": "cloudlang-store"|});
00013|   assert (Fixture.has_substr output {|"binding": "CACHE"|});
00014|   assert (Fixture.has_substr output {|"id": "cloudlang-cache"|});
00015| 
00016|   assert (Fixture.has_substr output {|"service": "storage"|});
00017|   assert (Fixture.has_substr output {|"service": "cache"|});
00018| 
00019|   assert (Fixture.has_substr output {|"/handleRequest"|});
00020| 
00021|   assert (Fixture.has_substr output {|"durable_object_hint"|});
00022|   assert (Fixture.has_substr output {|"fit_score"|});
00023| 
00024|   assert (Fixture.has_substr output "interface Env");
00025|   assert (Fixture.has_substr output "async fetch");
00026|   assert (Fixture.has_substr output "export default")
00027| 

(End of file - total 27 lines)
</file>

Error: Unexpected contents of build directory global lock file
(_build/.lock). Expected an integer PID. Found: 
Hint: Try deleting _build/.lock

Running CloudLang tests...
  scope analysis: OK
  decomposition: OK
  IR output: OK
  durable object hints: OK
  generated output: OK

All tests passed!

<file>
00001| let () =
00002|   print_endline "Running CloudLang tests...";
00003| 
00004|   Test_scope.run ();
00005|   print_endline "  scope analysis: OK";
00006| 
00007|   Test_decompose.run ();
00008|   print_endline "  decomposition: OK";
00009| 
00010|   Test_ir.run ();
00011|   print_endline "  IR output: OK";
00012| 
00013|   Test_durable_object_hints.run ();
00014|   print_endline "  durable object hints: OK";
00015| 
00016|   Test_generate.run ();
00017|   print_endline "  generated output: OK";
00018| 
00019|   print_endline "";
00020|   print_endline "All tests passed!"
00021| 

(End of file - total 21 lines)
</file>

/home/jm/data/ai/cloudlang/test/test_durable_object_hints.ml

<file>
00001| let get_worker name config =
00002|   match
00003|     List.find_map
00004|       (function
00005|         | Cloudlang.Ir.Worker w when w.name = name -> Some w | _ -> None)
00006|       config
00007|   with
00008|   | Some w -> w
00009|   | None -> failwith (Printf.sprintf "missing worker: %s" name)
00010| 
00011| let run () =
00012|   let program = Fixture.build_kv_store_ast () in
00013|   let analysis = Fixture.analyze_exn program in
00014|   let config = Fixture.compile_exn analysis in
00015| 
00016|   let w_storage = get_worker "storage" config in
00017|   let w_cache = get_worker "cache" config in
00018|   let w_api = get_worker "handleRequest" config in
00019| 
00020|   (match w_storage.do_annotation with
00021|   | None -> failwith "expected DO hint for storage worker"
00022|   | Some hint ->
00023|       assert (hint.do_fit_score >= 60);
00024|       assert (List.mem Cloudlang.Ir.SerialConflictHotspot hint.markers));
00025| 
00026|   (match w_cache.do_annotation with
00027|   | None -> failwith "expected DO hint for cache worker"
00028|   | Some hint ->
00029|       assert (hint.do_fit_score >= 60);
00030|       assert (List.mem Cloudlang.Ir.StrictOrderingRequired hint.markers));
00031| 
00032|   assert (w_api.do_annotation = None)
00033| 

(End of file - total 33 lines)
</file>

DUNE-PKG-LOCK(1)                  Dune Manual                 DUNE-PKG-LOCK(1)

NNAAMMEE
       dune-pkg-lock - Create a lockfile

SSYYNNOOPPSSIISS
       dduunnee ppkkgg lloocckk [_O_P_T_I_O_N]… [_L_O_C_K_D_I_R_S]…

AARRGGUUMMEENNTTSS
       _L_O_C_K_D_I_R_S
           Lock directories to check for outdated packages. Defaults to
           dune.lock.

OOPPTTIIOONNSS
       ----aaccttiioonn--ssttddeerrrr--oonn--ssuucccceessss=_V_A_L
           Same as ----aaccttiioonn--ssttddoouutt--oonn--ssuucccceessss but for standard error instead
           of standard output. A good default for large mono-repositories is
           ----aaccttiioonn--ssttddoouutt--oonn--ssuucccceessss==sswwaallllooww
           ----aaccttiioonn--ssttddeerrrr--oonn--ssuucccceessss==mmuusstt--bbee--eemmppttyy. This ensures that a
           successful build has a "clean" empty output.

<file>
00001| (lang package 0.1)
00002| 
00003| (dependency_hash 2f727ebc573afc234bec031bc04fd612)
00004| 
00005| (ocaml ocaml-base-compiler)
00006| 
00007| (repositories
00008|  (complete true)
00009|  (used
00010|   ((source
00011|     https://github.com/ocaml-dune/opam-overlays.git#2a9543286ff0e0656058fee5c0da7abc16b8717d))
00012|   ((source
00013|     https://github.com/ocaml/opam-repository.git#7001851a2a5db92a14c19195733bc3c2d657929c))))
00014| 
00015| (expanded_solver_variable_bindings
00016|  (variable_values
00017|   (with-dev-setup false)
00018|   (sys-ocaml-version 5.4.0)
00019|   (post true)
00020|   (os-distribution debian)
00021|   (os linux)
00022|   (opam-version 2.2.0~alpha-vendored)
00023|   (arch x86_64))
00024|  (unset_variables
00025|   sys-ocaml-libc
00026|   sys-ocaml-cc
00027|   sys-ocaml-arch
00028|   enable-ocaml-beta-repository
00029|   build))
00030| 

(End of file - total 30 lines)
</file>

depopts      "cmdliner" "brr" "bytesrw"
conflicts    "cmdliner" {< "1.3.0"} "brr" {< "0.0.6"}
synopsis     Declarative JSON data manipulation for OCaml
description  Jsont is an OCaml library for declarative JSON data manipulation. It
             provides:
             - Combinators for describing JSON data using the OCaml values of your

<><> bytesrw: information on all versions <><><><><><><><><><><><><><><><><><><>
name                   bytesrw
all-installed-versions 0.3.0 [default]
all-versions           0.1.0  0.2.0  0.3.0

<><> Version-specific details <><><><><><><><><><><><><><><><><><><><><><><><><>
version      0.3.0
repository   default
url.src      "https://erratique.ch/software/bytesrw/releases/bytesrw-0.3.0.tbz"
url.checksum "sha512=388858b0db210a62a16f56655746fdfadbc64b22c2abb5ed5a12b2872e4f8c34f045cdb953a5dda9b92f0003c7f9f34d70fa5b5bb19fd32fb6121bbaeb7ceba0"
homepage     "https://erratique.ch/software/bytesrw"
doc          "https://erratique.ch/software/bytesrw/doc"
bug-reports  "https://github.com/dbuenzli/bytesrw/issues"
dev-repo     "git+https://erratique.ch/repos/bytesrw.git"

not installed via opam switch; checking docs

index (jsont.index)Up – Index » jsontJsont  v0.2.0Jsont is an OCaml library for declarative JSON data manipulation. It provides:Combinators for describing JSON data using the OCaml values of your choice. The descriptions can be used by generic functions to decode, encode, query and update JSON data without having to construct a generic JSON representation.A JSON codec with optional text location tracking and layout preservation. The codec is compatible with effect-based concurrency.The descriptions are independent from the codec and can be used by third-party processors or codecs.ManualsLibrary jsontLibrary jsont.bytesrwLibrary jsont.brrQuick startManualsThe following manuals are available.The quick start should do so.The Jsont cookbook has a few conventions and JSON data modelling recipes.The test directory in the source repository of Jsont has a few more examples.Library jsontJsont Types for JSON values.Library jsont.bytesrwThis library depends on the bytesrw library and exports the jsont library.Jsont_bytesrw JSON codec.Library jsont.brrThis library depends on the brr library and exports the jsont library.Jsont_brr JavaScript support.Quick startGiven JSON for task items encoded in JSON as follows:let data =
{|
{ "task": "Make new release",
  "status": "todo",
  "tags": ["work", "softwre"] }|}First we can correct that typo in the "tags" list with:let () =
  let p = Jsont.Path.(root |> mem "tags" |> nth 1) in
  let update = Jsont.(set_path string p "software") in
  let correct = Jsont_bytesrw.recode_string ~layout:true update data in
  print_endline (Result.get_ok correct)Now to work with the data in OCaml without pain we can model it by:module Status = struct
  type t = Todo | Done | Cancelled
  let assoc = ["todo", Todo; "done", Done; "cancelled", Cancelled ]
  let jsont = Jsont.enum ~kind:"Status" assoc
end

mod...

ocamlfind not available in dune context

[
  {
    "id": "1",
    "content": "Add jsont + bytesrw to dune-project depends, run `dune pkg lock`, verify build",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "2",
    "content": "Create tools/ts-to-ast.ts bridge script + tools/package.json, bun install",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "3",
    "content": "Create lib/parse.ml — jsont decoder: JSON string → Ast.node (17 ESTree case objects + recursive codec)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "4",
    "content": "Create lib/subprocess.ml — shell out to bun, capture stdout JSON, return (string, error) result",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "5",
    "content": "Wire lib/cloudlang.ml — add parse_file entry point: filepath → Ast.node via subprocess + parse",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "6",
    "content": "Wire bin/main.ml — CLI reads .ts file, runs full pipeline, prints output",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "7",
    "content": "Add test/test_parse.ml — integration test: parse examples/kv-store.ts → assert same analysis results as hand-built AST",
    "status": "pending",
    "priority": "high"
  }
]

[
  {
    "id": "1",
    "content": "Add jsont + bytesrw to dune-project depends, run `dune pkg lock`, verify build",
    "status": "in_progress",
    "priority": "high"
  },
  {
    "id": "2",
    "content": "Create tools/ts-to-ast.ts bridge script + tools/package.json, bun install",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "3",
    "content": "Create lib/parse.ml — jsont decoder: JSON string → Ast.node (17 ESTree case objects + recursive codec)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "4",
    "content": "Create lib/subprocess.ml — shell out to bun, capture stdout JSON, return (string, error) result",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "5",
    "content": "Wire lib/cloudlang.ml — add parse_file entry point: filepath → Ast.node via subprocess + parse",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "6",
    "content": "Wire bin/main.ml — CLI reads .ts file, runs full pipeline, prints output",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "7",
    "content": "Add test/test_parse.ml — integration test: parse examples/kv-store.ts → assert same analysis results as hand-built AST",
    "status": "pending",
    "priority": "high"
  }
]

Edit applied successfully.

Solution for dune.lock:
- bytesrw.0.3.0
- conf-pkg-config.4
- jsont.0.2.0
- ocaml.5.4.0
- ocaml-base-compiler.5.4.0
- ocaml-compiler.5.4.0
- ocaml-config.3
- ocamlbuild.0.16.1+dune
- ocamlfind.1.9.8+dune
- topkg.1.1.1

Edit applied successfully.

[
  {
    "id": "1",
    "content": "Add jsont + bytesrw to dune-project depends, run `dune pkg lock`, verify build",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "2",
    "content": "Create tools/ts-to-ast.ts bridge script + tools/package.json, bun install",
    "status": "in_progress",
    "priority": "high"
  },
  {
    "id": "3",
    "content": "Create lib/parse.ml — jsont decoder: JSON string → Ast.node (17 ESTree case objects + recursive codec)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "4",
    "content": "Create lib/subprocess.ml — shell out to bun, capture stdout JSON, return (string, error) result",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "5",
    "content": "Wire lib/cloudlang.ml — add parse_file entry point: filepath → Ast.node via subprocess + parse",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "6",
    "content": "Wire bin/main.ml — CLI reads .ts file, runs full pipeline, prints output",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "7",
    "content": "Add test/test_parse.ml — integration test: parse examples/kv-store.ts → assert same analysis results as hand-built AST",
    "status": "pending",
    "priority": "high"
  }
]

tools dir does not exist

All 2 tools executed successfully.

Keep using the batch tool for optimal performance in your next response!

Wrote file successfully.

Wrote file successfully.

bun install v1.3.5 (1e86cebd)
Resolving dependencies
Resolved, downloaded and extracted [43]
Saved lockfile

+ @typescript-eslint/typescript-estree@8.54.0

17 packages installed [1152.00ms]

{"type":"Program","body":[{"type":"VariableDeclaration","declarations":[{"type":"VariableDeclarator","definite":false,"id":{"type":"Identifier","decorators":[],"name":"store","optional":false},"init":{"type":"NewExpression","arguments":[],"callee":{"type":"Identifier","decorators":[],"name":"Map","optional":false},"typeArguments":{"type":"TSTypeParameterInstantiation","params":[{"type":"TSStringKeyword"},{"type":"TSStringKeyword"}]}}}],"declare":false,"kind":"const"},{"type":"VariableDeclaration","declarations":[{"type":"VariableDeclarator","definite":false,"id":{"type":"Identifier","decorators":[],"name":"put","optional":false},"init":{"type":"ArrowFunctionExpression","async":false,"body":{"type":"BlockStatement","body":[{"type":"ExpressionStatement","expression":{"type":"CallExpression","arguments":[{"type":"Identifier","decorators":[],"name":"key","optional":false},{"type":"Identifier","decorators":[],"name":"value","optional":false}],"callee":{"type":"MemberExpression","computed":false,"object":{"type":"Identifier","decorators":[],"name":"store","optional":false},"optional":false,"property":{"type":"Identifier","decorators":[],"name":"set","optional":false}},"optional":false}}]},"expression":false,"generator":false,"id":null,"params":[{"type":"Identifier","decorators":[],"name":"key","optional":false,"typeAnnotation":{"type":"TSTypeAnnotation","typeAnnotation":{"type":"TSStringKeyword"}}},{"type":"Identifier","decorators":[],"name":"value","optional":false,"typeAnnotation":{"type":"TSTypeAnnotation","typeAnnotation":{"type":"TSStringKeyword"}}}],"returnType":{"type":"TSTypeAnnotation","typeAnnotation":{"type":"TSVoidKeyword"}}}}],"declare":false,"kind":"const"},{"type":"VariableDeclaration","declarations":[{"type":"VariableDeclarator","definite":false,"id":{"type":"Identifier","decorators":[],"name":"get","optional":false},"init":{"type":"ArrowFunctionExpression","async":false,"body":{"type":"BlockStatement","body":[{"type":"ReturnStatement","argument":{"type":"...

[
  {
    "id": "1",
    "content": "Add jsont + bytesrw to dune-project depends, run `dune pkg lock`, verify build",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "2",
    "content": "Create tools/ts-to-ast.ts bridge script + tools/package.json, bun install",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "3",
    "content": "Create lib/parse.ml — jsont decoder: JSON string → Ast.node (17 ESTree case objects + recursive codec)",
    "status": "in_progress",
    "priority": "high"
  },
  {
    "id": "4",
    "content": "Create lib/subprocess.ml — shell out to bun, capture stdout JSON, return (string, error) result",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "5",
    "content": "Wire lib/cloudlang.ml — add parse_file entry point: filepath → Ast.node via subprocess + parse",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "6",
    "content": "Wire bin/main.ml — CLI reads .ts file, runs full pipeline, prints output",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "7",
    "content": "Add test/test_parse.ml — integration test: parse examples/kv-store.ts → assert same analysis results as hand-built AST",
    "status": "pending",
    "priority": "high"
  }
]

Edit applied successfully.

Edit applied successfully.

<file>
00001| let () =
00002|   if Array.length Sys.argv < 2 then
00003|     print_endline
00004|       "Usage: cloudlang <file.ts>\n\n\
00005|        Decomposes a TypeScript program into Cloudflare Workers.\n\n\
00006|        Currently expects a JSON ESTree AST on stdin.\n\
00007|        (Direct .ts parsing via typescript-estree bridge is planned.)"
00008|   else
00009|     (* TODO: implement JSON AST ingestion from typescript-estree.
00010|        For now the CLI is a placeholder; the real pipeline is exercised
00011|        via the test suite which constructs the AST programmatically. *)
00012|     let _filename = Sys.argv.(1) in
00013|     Printf.printf
00014|       "cloudlang: .ts file parsing not yet implemented.\n\
00015|        Run `dune runtest` to see the pipeline in action.\n"
00016| 

(End of file - total 16 lines)
</file>

Edit applied successfully.

cloudlang: parse error: Expected ESTree node object but found null
File "-", line 1, characters 4052-4053:
File "-": in member alternate of
File "-", line 1, characters 4018-4053: IfStatement object
File "-", line 1, characters 4018-4053: at index 1 of
File "-", line 1, characters 3457-4053: array<ESTree node object>
File "-": in member body of
File "-", line 1, characters 3425-4053: BlockStatement object
File "-": in member body of
File "-", line 1, characters 3370-4053: ArrowFunctionExpression object
File "-": in member init of
File "-", line 1, characters 3238-4053: VariableDeclarator object
File "-", line 1, characters 3238-4053: at index 0 of
File "-", line 1, characters 3237-4053: array<ESTree node object>
File "-": in member declarations of
File "-", line 1, characters 3192-4053: VariableDeclaration object
File "-", line 1, characters 3192-4053: at index 4 of
File "-", line 1, characters 25-4053: array<ESTree node object>
File "-": in member body of
File "-", line 1, characters 0-4053: Program object

error: Module not found "ts-to-ast.ts"

error: Module not found "ts-to-ast.ts"

error: Module not found "ts-to-ast.ts"

error: Module not found "ts-to-ast.ts"

error: Module not found "ts-to-ast.ts"

error: Module not found "ts-to-ast.ts"

error: Module not found "ts-to-ast.ts"

error: Module not found "ts-to-ast.ts"

error: Module not found "ts-to-ast.ts"

error: Module not found "ts-to-ast.ts"

total 0
drwxrwxr-x 1 jm jm  24 Feb  6 05:44 .
drwxrwxr-x 1 jm jm 282 Feb  6 05:44 ..
drwxr-xr-x 1 jm jm 274 Feb  6 05:38 node_modules

Executed 2/5 tools successfully. 3 failed.

<file>
00001| module Ast = Ast
00002| module Ir = Ir
00003| module Scope = Scope
00004| module Decompose = Decompose
00005| 
00006| type error = string
00007| 
00008| (** Analyse a TypeScript AST and decompose it into Worker groups. *)
00009| let analyze (program : Ast.node) : (Scope.analysis_result, error) result =
00010|   Scope.analyze program
00011|   |> Result.map_error (fun err ->
00012|       Printf.sprintf "analysis error: %s" (Scope.error_to_string err))
00013| 
00014| (** Decompose analysis results into Worker groups and convert to IR. *)
00015| let compile (analysis : Scope.analysis_result) : (Ir.config, error) result =
00016|   let groups = Decompose.decompose analysis in
00017|   Ok (Decompose.to_ir groups analysis)
00018| 
00019| (* --- Code generation: IR -> output string --- *)
00020| 
00021| (** Generate a JSON-style wrangler configuration for a binding. *)
00022| let generate_binding_json (b : Ir.binding) : string =
00023|   match b with
00024|   | Ir.D1Binding { name; database_id } ->
00025|       Printf.sprintf {|    { "binding": "%s", "database_id": "%s" }|} name
00026|         database_id
00027|   | Ir.KVBinding { name; namespace_id } ->
00028|       Printf.sprintf {|    { "binding": "%s", "id": "%s" }|} name namespace_id
00029|   | Ir.R2Binding { name; bucket_name } ->
00030|       Printf.sprintf {|    { "binding": "%s", "bucket_name": "%s" }|} name
00031|         bucket_name
00032|   | Ir.ServiceBinding { name; service } ->
00033|       Printf.sprintf {|    { "binding": "%s", "service": "%s" }|} name service
00034| 
00035| let string_of_do_marker (marker : Ir.do_marker) : string =
00036|   match marker with
00037|   | Ir.SerialConflictHotspot -> "serial_conflict_hotspot"
00038|   | Ir.GlobalSingletonNeeded -> "global_singleton_needed"
00039|   | Ir.EntityAffinityKeyed _ -> "entity_affinity_keyed"
00040|   | Ir.StrictOrderingRequired -> "strict_ordering_required"
00041|   | Ir.ConsistencyBoundaryCrossed -> "consistency_boundary_crossed"
00042|...

<file>
00001| let () =
00002|   if Array.length Sys.argv < 2 then
00003|     print_endline
00004|       "Usage: cloudlang <file.ts>\n\n\
00005|        Decomposes a TypeScript program into Cloudflare Workers.\n\n\
00006|        Currently expects a JSON ESTree AST on stdin.\n\
00007|        (Direct .ts parsing via typescript-estree bridge is planned.)"
00008|   else
00009|     (* TODO: implement JSON AST ingestion from typescript-estree.
00010|        For now the CLI is a placeholder; the real pipeline is exercised
00011|        via the test suite which constructs the AST programmatically. *)
00012|     let _filename = Sys.argv.(1) in
00013|     Printf.printf
00014|       "cloudlang: .ts file parsing not yet implemented.\n\
00015|        Run `dune runtest` to see the pipeline in action.\n"
00016| 

(End of file - total 16 lines)
</file>

total 76
drwxrwxr-x 1 jm jm   248 Feb  6 05:44 .
drwxrwxr-x 1 jm jm   282 Feb  6 05:44 ..
-rw-r--r-- 1 jm jm  1498 Feb  6 05:09 ast.ml
-rw-r--r-- 1 jm jm  1209 Feb  6 05:09 ast.mli
-rw-rw-r-- 1 jm jm  6057 Feb  6 05:44 cloudlang.ml
-rw-rw-r-- 1 jm jm   566 Feb  6 05:44 cloudlang.mli
-rw-r--r-- 1 jm jm 13895 Feb  6 05:25 decompose.ml
-rw-r--r-- 1 jm jm   990 Feb  6 05:23 decompose.mli
-rw-rw-r-- 1 jm jm    28 Feb  6 05:44 dune
-rw-r--r-- 1 jm jm  1874 Feb  6 05:23 ir.ml
-rw-r--r-- 1 jm jm  1874 Feb  6 05:23 ir.mli
-rw-r--r-- 1 jm jm  9119 Feb  6 05:09 scope.ml
-rw-r--r-- 1 jm jm  1478 Feb  6 05:09 scope.mli
-rw-r--r-- 1 jm jm   360 Feb  6 05:09 string_list.ml
-rw-rw-r-- 1 jm jm   191 Feb  6 04:49 string_list.mli

/home/jm/data/ai/cloudlang/_build/_private/default/.pkg/ocaml-compiler.5.4.0-61befdcd65735b2dccd9c5e9d6505b00/source/.github/workflows/parsetree-change.yml
/home/jm/data/ai/cloudlang/_build/_private/default/.pkg/ocaml-compiler.5.4.0-61befdcd65735b2dccd9c5e9d6505b00/source/boot/menhir/parser.ml
/home/jm/data/ai/cloudlang/_build/_private/default/.pkg/ocaml-compiler.5.4.0-61befdcd65735b2dccd9c5e9d6505b00/source/boot/menhir/parser.mli
/home/jm/data/ai/cloudlang/_build/_private/default/.pkg/ocaml-compiler.5.4.0-61befdcd65735b2dccd9c5e9d6505b00/source/debugger/debugger_parser.mly
/home/jm/data/ai/cloudlang/_build/_private/default/.pkg/ocaml-compiler.5.4.0-61befdcd65735b2dccd9c5e9d6505b00/source/debugger/parser_aux.mli
/home/jm/data/ai/cloudlang/_build/_private/default/.pkg/ocaml-compiler.5.4.0-61befdcd65735b2dccd9c5e9d6505b00/source/driver/pparse.ml
/home/jm/data/ai/cloudlang/_build/_private/default/.pkg/ocaml-compiler.5.4.0-61befdcd65735b2dccd9c5e9d6505b00/source/driver/pparse.mli
/home/jm/data/ai/cloudlang/_build/_private/default/.pkg/ocaml-compiler.5.4.0-61befdcd65735b2dccd9c5e9d6505b00/source/lex/parser.mly
/home/jm/data/ai/cloudlang/_build/_private/default/.pkg/ocaml-compiler.5.4.0-61befdcd65735b2dccd9c5e9d6505b00/source/ocamldoc/odoc_parser.mly
/home/jm/data/ai/cloudlang/_build/_private/default/.pkg/ocaml-compiler.5.4.0-61befdcd65735b2dccd9c5e9d6505b00/source/ocamldoc/odoc_text_parser.mly
/home/jm/data/ai/cloudlang/_build/_private/default/.pkg/ocaml-compiler.5.4.0-61befdcd65735b2dccd9c5e9d6505b00/source/ocamltest/modifier_parser.ml
/home/jm/data/ai/cloudlang/_build/_private/default/.pkg/ocaml-compiler.5.4.0-61befdcd65735b2dccd9c5e9d6505b00/source/ocamltest/modifier_parser.mli
/home/jm/data/ai/cloudlang/_build/_private/default/.pkg/ocaml-compiler.5.4.0-61befdcd65735b2dccd9c5e9d6505b00/source/ocamltest/tsl_parser.mly
/home/jm/data/ai/cloudlang/_build/_private/default/.pkg/ocaml-compiler.5.4.0-61befdcd65735b2dccd9c5e9d6505b00/source/parsing/parse.ml
/home/jm/data/ai/cl...

M  lib/cloudlang.ml
M  lib/decompose.ml
M  lib/decompose.mli
M  lib/ir.ml
M  lib/ir.mli
M  test/test_cloudlang.ml
A  test/test_durable_object_hints.ml
M  test/test_generate.ml
?? docs/
?? dune.lock/

diff --git a/lib/cloudlang.ml b/lib/cloudlang.ml
index d6ea1181..b09619ca 100644
--- a/lib/cloudlang.ml
+++ b/lib/cloudlang.ml
@@ -32,6 +32,73 @@ let generate_binding_json (b : Ir.binding) : string =
   | Ir.ServiceBinding { name; service } ->
       Printf.sprintf {|    { "binding": "%s", "service": "%s" }|} name service
 
+let string_of_do_marker (marker : Ir.do_marker) : string =
+  match marker with
+  | Ir.SerialConflictHotspot -> "serial_conflict_hotspot"
+  | Ir.GlobalSingletonNeeded -> "global_singleton_needed"
+  | Ir.EntityAffinityKeyed _ -> "entity_affinity_keyed"
+  | Ir.StrictOrderingRequired -> "strict_ordering_required"
+  | Ir.ConsistencyBoundaryCrossed -> "consistency_boundary_crossed"
+  | Ir.RealtimeFanout -> "realtime_fanout"
+  | Ir.DurableTimerNeeded -> "durable_timer_needed"
+  | Ir.HighFanInCoordinator -> "high_fan_in_coordinator"
+  | Ir.StatelessFastPathPreferWorker -> "stateless_fast_path_prefer_worker"
+
+let string_of_coordination_intent (intent : Ir.coordination_intent) : string =
+  match intent with
+  | Ir.PerEntitySerial _ -> "per_entity_serial"
+  | Ir.GlobalSingleton _ -> "global_singleton"
+  | Ir.RealtimeRoom _ -> "realtime_room"
+  | Ir.ScheduledQueue _ -> "scheduled_queue"
+
+let string_of_routing_policy (routing : Ir.routing_policy) : string =
+  match routing with
+  | Ir.DeterministicName _ -> "deterministic_name"
+  | Ir.ShardedName _ -> "sharded_name"
+  | Ir.UniqueIdPool _ -> "unique_id_pool"
+
+let string_of_storage_backend (backend : Ir.storage_backend) : string =
+  match backend with Ir.DoSqlite -> "sqlite" | Ir.DoSyncKv -> "sync_kv"
+
+let string_of_alarm_mode (alarm_mode : Ir.alarm_mode) : string =
+  match alarm_mode with
+  | Ir.NoAlarm -> "none"
+  | Ir.SingleAlarm -> "single"
+  | Ir.QueuedAlarm -> "queued"
+
+let generate_do_hint_json (hint : Ir.do_annotation) : string =
+  let markers =
+    String.concat ", "
+      (List.map
+         (fun marker -> Printf.sprintf {|"%s"|} (string_of_do_marker marker))
+   ...

total 0
drwxrwxr-x 1 jm jm  24 Feb  6 05:44 .
drwxrwxr-x 1 jm jm 282 Feb  6 05:44 ..
drwxr-xr-x 1 jm jm 274 Feb  6 05:38 node_modules

task_id: ses_3ce79b8d7ffeuPtjM1XQN4O27q (for resuming to continue this task if needed)

<task_result>
## CloudLang Project State Analysis

### **Current Project Structure**

**Library (`lib/`)**
- `ast.ml` / `.mli` - ESTree-compatible AST types for TypeScript
- `scope.ml` / `.mli` - Scope analysis and closure detection
- `decompose.ml` / `.mli` - Worker group decomposition
- `ir.ml` / `.mli` - Intermediate representation for Cloudflare configs
- `cloudlang.ml` / `.mli` - Main library interface
- `string_list.ml` / `.mli` - Utility module

**Binary (`bin/`)**
- `main.ml` - CLI placeholder (currently only prints help message)

**Tests (`test/`)**
- `test_cloudlang.ml` - Main test runner
- `test_scope.ml`, `test_decompose.ml`, `test_ir.ml` - Unit tests
- `test_generate.ml`, `test_durable_object_hints.ml` - Code generation tests
- `fixture.ml` - Test fixture builder

**Examples (`examples/`)**
- `kv-store.ts` - TypeScript example
- `hello.cl`, `closure_worker.cl` - CloudLang source files

### **Missing Files Reported by User**

The user mentioned creating **`parse.ml`**, **`subprocess.ml`**, and **`tools/ts-to-ast.ts`**, but **none of these files exist** in the repository:

1. **No parse.ml** - No TypeScript parser implementation exists yet
2. **No subprocess.ml** - No Node.js bridge for invoking typescript-estree
3. **No tools/ts-to-ast.ts** - No TypeScript to JSON AST conversion script

### **Git Status**

**Staged Changes (ready to commit):**
- Modified: `lib/cloudlang.ml`, `lib/decompose.ml/.mli`, `lib/ir.ml/.mli`
- Modified: `test/test_cloudlang.ml`, `test/test_generate.ml`
- New: `test/test_durable_object_hints.ml`

**Untracked Files:**
- `docs/` directory (likely documentation)
- `dune.lock` (build artifact)

**Recent Commits (last 3):**
1. `8f053a08` - Various style and cleanup changes
2. `3c403430` - Built first proper example. Target language is now TypeScript
3. `37b80f1e` - Start

### **Design & Architecture Research**

Found in `.opencode/context/`:
- `clou...

<skill_content name="jsont">
# Skill: jsont

# Jsont JSON Encoding/Decoding

## Dependencies

```dune
(libraries jsont jsont.bytesrw)
```

## Core Patterns

### Simple Object Codec

Map a JSON object to an OCaml record using `Jsont.Object.map` with `mem` for required fields:

```ocaml
type header = {
  message_id : string;
  method_ : string;
  timestamp : int;
}

let header_codec =
  Jsont.Object.map ~kind:"header"
    (fun message_id method_ timestamp -> { message_id; method_; timestamp })
  |> Jsont.Object.mem "messageId" Jsont.string ~enc:(fun h -> h.message_id)
  |> Jsont.Object.mem "method" Jsont.string ~enc:(fun h -> h.method_)
  |> Jsont.Object.mem "timestamp" Jsont.int ~enc:(fun h -> h.timestamp)
  |> Jsont.Object.finish
```

### Optional Fields

Use `opt_mem` for optional JSON fields. The constructor receives `'a option`:

```ocaml
type config = {
  name : string;
  timeout : int;  (* default if missing *)
}

let config_codec =
  Jsont.Object.map ~kind:"config"
    (fun name timeout_opt ->
      { name; timeout = Option.value ~default:30 timeout_opt })
  |> Jsont.Object.mem "name" Jsont.string ~enc:(fun c -> c.name)
  |> Jsont.Object.opt_mem "timeout" Jsont.int ~enc:(fun c -> Some c.timeout)
  |> Jsont.Object.finish
```

### Skip Unknown Fields

Use `skip_unknown` before `finish` to ignore extra JSON fields (tolerant parsing):

```ocaml
let tolerant_codec =
  Jsont.Object.map ~kind:"data" (fun id -> { id })
  |> Jsont.Object.mem "id" Jsont.string ~enc:(fun d -> d.id)
  |> Jsont.Object.skip_unknown  (* ignore extra fields *)
  |> Jsont.Object.finish
```

### Nested Objects

Compose codecs for nested structures:

```ocaml
type request = { header : header; payload : payload }

let request_codec payload_codec =
  Jsont.Object.map ~kind:"request" (fun header payload -> { header; payload })
  |> Jsont.Object.mem "header" header_codec ~enc:(fun r -> r.header)
  |> Jsont.Object.mem "payload" payload_codec ~enc:(fun r -> r.payload)
  |> Jsont.Object.finish
```

###...

./_build/_private/default/.pkg/jsont/source/test/trials.ml:   Copyright (c) 2024 The jsont programmers. All rights reserved.
./_build/_private/default/.pkg/jsont/source/test/trials.ml:  let jsont : t Jsont.t =
./_build/_private/default/.pkg/jsont/source/test/topojson.ml:   Copyright (c) 2024 The jsont programmers. All rights reserved.
./_build/_private/default/.pkg/jsont/source/test/topojson.ml:  let jsont = Jsont.(array ~kind:"Position" number)
./_build/_private/default/.pkg/jsont/source/test/topojson.ml:  let jsont = Jsont.(array ~kind:"Bbox" number)

<file>
00001| (lang dune 3.20)
00002| (authors "Jason Manning <manno@j9m>")
00003| (maintainers "Jason Manning <manno@j9m>")
00004| (license GPL-3.0-or-later)
00005| (source (github manno23/cloudlang))
00006| 
00007| (name cloudlang)
00008| (generate_opam_files true)
00009| (maintenance_intent "(latest)")
00010| (package
00011|  (name cloudlang)
00012|  (synopsis "TypeScript to Cloudflare Worker decomposition compiler")
00013|  (depends
00014|   ocaml))
00015| 

(End of file - total 15 lines)
</file>

[
  {
    "content": "Task 1: Install jsont dependency in dune-project and lib/dune",
    "status": "in_progress",
    "priority": "high",
    "id": "1"
  },
  {
    "content": "Task 2: Create tools/ts-to-ast.ts bridge script and package.json",
    "status": "pending",
    "priority": "high",
    "id": "2"
  },
  {
    "content": "Task 3: Create lib/parse.ml with jsont decoder for ESTree JSON",
    "status": "pending",
    "priority": "high",
    "id": "3"
  },
  {
    "content": "Task 4: Create lib/subprocess.ml for bun bridge execution",
    "status": "pending",
    "priority": "high",
    "id": "4"
  },
  {
    "content": "Task 5: Wire up parse_file entry point in cloudlang.ml",
    "status": "pending",
    "priority": "high",
    "id": "5"
  },
  {
    "content": "Task 6: Wire up CLI in bin/main.ml for .ts file processing",
    "status": "pending",
    "priority": "high",
    "id": "6"
  },
  {
    "content": "Task 7: Create integration test test/test_parse.ml",
    "status": "pending",
    "priority": "medium",
    "id": "7"
  },
  {
    "content": "Run dune pkg lock to resolve dependencies",
    "status": "pending",
    "priority": "high",
    "id": "8"
  },
  {
    "content": "Verify build passes with dune build",
    "status": "pending",
    "priority": "high",
    "id": "9"
  },
  {
    "content": "Verify tests pass with dune runtest",
    "status": "pending",
    "priority": "high",
    "id": "10"
  }
]

Edit applied successfully.

<file>
00001| (library
00002|  (name cloudlang))
00003| 

(End of file - total 3 lines)
</file>

Edit applied successfully.

<file>
00001| (executable
00002|  (public_name cloudlang)
00003|  (name main)
00004|  (libraries cloudlang))
00005| 

(End of file - total 5 lines)
</file>

Edit applied successfully.

[
  {
    "content": "Task 1: Install jsont dependency in dune-project and lib/dune",
    "status": "completed",
    "priority": "high",
    "id": "1"
  },
  {
    "content": "Task 2: Create tools/ts-to-ast.ts bridge script and package.json",
    "status": "pending",
    "priority": "high",
    "id": "2"
  },
  {
    "content": "Task 3: Create lib/parse.ml with jsont decoder for ESTree JSON",
    "status": "pending",
    "priority": "high",
    "id": "3"
  },
  {
    "content": "Task 4: Create lib/subprocess.ml for bun bridge execution",
    "status": "pending",
    "priority": "high",
    "id": "4"
  },
  {
    "content": "Task 5: Wire up parse_file entry point in cloudlang.ml",
    "status": "pending",
    "priority": "high",
    "id": "5"
  },
  {
    "content": "Task 6: Wire up CLI in bin/main.ml for .ts file processing",
    "status": "pending",
    "priority": "high",
    "id": "6"
  },
  {
    "content": "Task 7: Create integration test test/test_parse.ml",
    "status": "pending",
    "priority": "medium",
    "id": "7"
  },
  {
    "content": "Run dune pkg lock to resolve dependencies",
    "status": "in_progress",
    "priority": "high",
    "id": "8"
  },
  {
    "content": "Verify build passes with dune build",
    "status": "pending",
    "priority": "high",
    "id": "9"
  },
  {
    "content": "Verify tests pass with dune runtest",
    "status": "pending",
    "priority": "high",
    "id": "10"
  }
]

File "dune-project", line 16, characters 2-15:
16 |   jsont.bytesrw
       ^^^^^^^^^^^^^
Error: "jsont.bytesrw" is an invalid package dependency.
Package names can contain letters, numbers, '-', '_' and '+', and need to
contain at least a letter.
Hint: (jsont (= bytesrw)) would be a correct package dependency

Edit applied successfully.

Error: Unable to solve dependencies for the following lock directories:
Lock directory dune.lock:
Couldn't solve the package dependency formula.
The following packages couldn't be found: unix

Edit applied successfully.

Solution for dune.lock:
- bytesrw.0.3.0
- conf-pkg-config.4
- jsont.0.2.0
- ocaml.5.4.0
- ocaml-base-compiler.5.4.0
- ocaml-compiler.5.4.0
- ocaml-config.3
- ocamlbuild.0.16.1+dune
- ocamlfind.1.9.8+dune
- topkg.1.1.1

[
  {
    "content": "Task 1: Install jsont dependency in dune-project and lib/dune",
    "status": "completed",
    "priority": "high",
    "id": "1"
  },
  {
    "content": "Task 2: Create tools/ts-to-ast.ts bridge script and package.json",
    "status": "pending",
    "priority": "high",
    "id": "2"
  },
  {
    "content": "Task 3: Create lib/parse.ml with jsont decoder for ESTree JSON",
    "status": "pending",
    "priority": "high",
    "id": "3"
  },
  {
    "content": "Task 4: Create lib/subprocess.ml for bun bridge execution",
    "status": "pending",
    "priority": "high",
    "id": "4"
  },
  {
    "content": "Task 5: Wire up parse_file entry point in cloudlang.ml",
    "status": "pending",
    "priority": "high",
    "id": "5"
  },
  {
    "content": "Task 6: Wire up CLI in bin/main.ml for .ts file processing",
    "status": "pending",
    "priority": "high",
    "id": "6"
  },
  {
    "content": "Task 7: Create integration test test/test_parse.ml",
    "status": "pending",
    "priority": "medium",
    "id": "7"
  },
  {
    "content": "Run dune pkg lock to resolve dependencies",
    "status": "completed",
    "priority": "high",
    "id": "8"
  },
  {
    "content": "Verify build passes with dune build",
    "status": "in_progress",
    "priority": "high",
    "id": "9"
  },
  {
    "content": "Verify tests pass with dune runtest",
    "status": "pending",
    "priority": "high",
    "id": "10"
  }
]

File "lib/parse.ml", line 3, characters 19-20:
3 |   Jsont.enum ~kind:\"var_kind\"
                       ^
Error: Illegal character (\\)

-rw-rw-r-- 1 jm jm 7603 Feb  6 06:11 /home/jm/data/ai/cloudlang/lib/parse.ml

<file>
00001| 
00002| let var_kind_jsont =
00003|   Jsont.enum ~kind:\"var_kind\"
00004|     [ (\"const\", Ast.Const); (\"let\", Ast.Let); (\"var\", Ast.Var) ]
00005| 
00006| let literal_value_jsont : Ast.literal_value Jsont.t =
00007|   let dec_string =
00008|     Jsont.map Jsont.string ~kind:\"LString\" ~dec:(fun s -> Ast.LString s)
00009|   in
00010|   let dec_number =
00011|     Jsont.map Jsont.number ~kind:\"LNumber\" ~dec:(fun n -> Ast.LNumber n)
00012|   in
00013|   let dec_bool =
00014|     Jsont.map Jsont.bool ~kind:\"LBool\" ~dec:(fun b -> Ast.LBool b)
00015|   in
00016|   let dec_null = Jsont.null Ast.LNull in
00017|   Jsont.any ~kind:\"literal_value\" ~dec_string ~dec_number ~dec_bool ~dec_null ()
00018| 
00019| let node_jsont : Ast.node Jsont.t =
00020|   let rec t =
00021|     lazy
00022|       (let node = Jsont.rec' t in
00023|        let node_list = Jsont.list node in
00024| 
00025|        let program_obj =
00026|          Jsont.Object.map ~kind:\"Program\" (fun body -> Ast.Program { body })
00027|          |> Jsont.Object.mem \"body\" node_list
00028|          |> Jsont.Object.skip_unknown |> Jsont.Object.finish
00029|        in
00030| 
00031|        let variable_declaration_obj =
00032|          Jsont.Object.map ~kind:\"VariableDeclaration\" (fun kind declarations ->
00033|              Ast.VariableDeclaration { kind; declarations })
00034|          |> Jsont.Object.mem \"kind\" var_kind_jsont
00035|          |> Jsont.Object.mem \"declarations\" node_list
00036|          |> Jsont.Object.skip_unknown |> Jsont.Object.finish
00037|        in
00038| 
00039|        let variable_declarator_obj =
00040|          Jsont.Object.map ~kind:\"VariableDeclarator\" (fun id init ->
00041|              Ast.VariableDeclarator { id; init })
00042|          |> Jsont.Object.mem \"id\" node
00043|          |> Jsont.Object.opt_mem \"init\" node
00044|          |> Jsont.Object.skip_unknown |> Jsont.Object.finish
00045|        in
00046| 
00047|        let identifier_obj =
00...

[
  {
    "content": "Task 1: Install jsont dependency in dune-project and lib/dune",
    "status": "completed",
    "priority": "high",
    "id": "1"
  },
  {
    "content": "Task 2: Create tools/ts-to-ast.ts bridge script and package.json",
    "status": "completed",
    "priority": "high",
    "id": "2"
  },
  {
    "content": "Task 3: Create lib/parse.ml with jsont decoder for ESTree JSON",
    "status": "completed",
    "priority": "high",
    "id": "3"
  },
  {
    "content": "Task 4: Create lib/subprocess.ml for bun bridge execution",
    "status": "completed",
    "priority": "high",
    "id": "4"
  },
  {
    "content": "Task 5: Wire up parse_file entry point in cloudlang.ml",
    "status": "in_progress",
    "priority": "high",
    "id": "5"
  },
  {
    "content": "Task 6: Wire up CLI in bin/main.ml for .ts file processing",
    "status": "pending",
    "priority": "high",
    "id": "6"
  },
  {
    "content": "Task 7: Create integration test test/test_parse.ml",
    "status": "pending",
    "priority": "medium",
    "id": "7"
  },
  {
    "content": "Run dune pkg lock to resolve dependencies",
    "status": "completed",
    "priority": "high",
    "id": "8"
  },
  {
    "content": "Verify build passes with dune build",
    "status": "pending",
    "priority": "high",
    "id": "9"
  },
  {
    "content": "Verify tests pass with dune runtest",
    "status": "pending",
    "priority": "high",
    "id": "10"
  }
]

<file>
00001| module Ast = Ast
00002| module Ir = Ir
00003| module Scope = Scope
00004| module Decompose = Decompose
00005| 
00006| type error = string
00007| 
00008| (** Analyse a TypeScript AST and decompose it into Worker groups. *)
00009| let analyze (program : Ast.node) : (Scope.analysis_result, error) result =
00010|   Scope.analyze program
00011|   |> Result.map_error (fun err ->
00012|       Printf.sprintf "analysis error: %s" (Scope.error_to_string err))
00013| 
00014| (** Decompose analysis results into Worker groups and convert to IR. *)
00015| let compile (analysis : Scope.analysis_result) : (Ir.config, error) result =
00016|   let groups = Decompose.decompose analysis in
00017|   Ok (Decompose.to_ir groups analysis)
00018| 
00019| (* --- Code generation: IR -> output string --- *)
00020| 
00021| (** Generate a JSON-style wrangler configuration for a binding. *)
00022| let generate_binding_json (b : Ir.binding) : string =
00023|   match b with
00024|   | Ir.D1Binding { name; database_id } ->
00025|       Printf.sprintf {|    { "binding": "%s", "database_id": "%s" }|} name
00026|         database_id
00027|   | Ir.KVBinding { name; namespace_id } ->
00028|       Printf.sprintf {|    { "binding": "%s", "id": "%s" }|} name namespace_id
00029|   | Ir.R2Binding { name; bucket_name } ->
00030|       Printf.sprintf {|    { "binding": "%s", "bucket_name": "%s" }|} name
00031|         bucket_name
00032|   | Ir.ServiceBinding { name; service } ->
00033|       Printf.sprintf {|    { "binding": "%s", "service": "%s" }|} name service
00034| 
00035| let string_of_do_marker (marker : Ir.do_marker) : string =
00036|   match marker with
00037|   | Ir.SerialConflictHotspot -> "serial_conflict_hotspot"
00038|   | Ir.GlobalSingletonNeeded -> "global_singleton_needed"
00039|   | Ir.EntityAffinityKeyed _ -> "entity_affinity_keyed"
00040|   | Ir.StrictOrderingRequired -> "strict_ordering_required"
00041|   | Ir.ConsistencyBoundaryCrossed -> "consistency_boundary_crossed"
00042|...

Edit applied successfully.

Edit applied successfully.

<file>
00001| (** CloudLang: TypeScript -> Cloudflare Worker decomposition compiler.
00002| 
00003|     Pipeline: 1. [analyze]: TypeScript ESTree AST -> scope/closure analysis 2.
00004|     [compile]: analysis result -> IR config (Workers + bindings) 3. [generate]:
00005|     IR config -> output string (wrangler configs + TS scripts) *)
00006| 
00007| module Ast = Ast
00008| module Ir = Ir
00009| module Scope = Scope
00010| module Decompose = Decompose
00011| 
00012| type error = string
00013| 
00014| val analyze : Ast.node -> (Scope.analysis_result, error) result
00015| val compile : Scope.analysis_result -> (Ir.config, error) result
00016| val generate : Ir.config -> string
00017| 

(End of file - total 17 lines)
</file>

Edit applied successfully.

[
  {
    "content": "Task 1: Install jsont dependency in dune-project and lib/dune",
    "status": "completed",
    "priority": "high",
    "id": "1"
  },
  {
    "content": "Task 2: Create tools/ts-to-ast.ts bridge script and package.json",
    "status": "completed",
    "priority": "high",
    "id": "2"
  },
  {
    "content": "Task 3: Create lib/parse.ml with jsont decoder for ESTree JSON",
    "status": "completed",
    "priority": "high",
    "id": "3"
  },
  {
    "content": "Task 4: Create lib/subprocess.ml for bun bridge execution",
    "status": "completed",
    "priority": "high",
    "id": "4"
  },
  {
    "content": "Task 5: Wire up parse_file entry point in cloudlang.ml",
    "status": "completed",
    "priority": "high",
    "id": "5"
  },
  {
    "content": "Task 6: Wire up CLI in bin/main.ml for .ts file processing",
    "status": "completed",
    "priority": "high",
    "id": "6"
  },
  {
    "content": "Task 7: Create integration test test/test_parse.ml",
    "status": "pending",
    "priority": "medium",
    "id": "7"
  },
  {
    "content": "Run dune pkg lock to resolve dependencies",
    "status": "completed",
    "priority": "high",
    "id": "8"
  },
  {
    "content": "Verify build passes with dune build",
    "status": "in_progress",
    "priority": "high",
    "id": "9"
  },
  {
    "content": "Verify tests pass with dune runtest",
    "status": "pending",
    "priority": "high",
    "id": "10"
  }
]

File "lib/parse.ml", line 190, characters 2-52:
190 |   Jsont_bytesrw.decode_string node_jsont json_string
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Error: This expression has type (Ast.node, string) result
       but an expression was expected of type
         (Ast.node, Jsont.Error.t) result
       Type string is not compatible with type
         Jsont.Error.t =
           Jsont.Error.Context.t * Jsont.Meta.t * Jsont.Error.kind

<file>
00186|   in
00187|   Lazy.force t
00188| 
00189| let decode (json_string : string) : (Ast.node, string) result =
00190|   Jsont_bytesrw.decode_string node_jsont json_string
00191|   |> Result.map_error (fun e -> Jsont.Error.to_string e)
00192| 

(End of file - total 192 lines)
</file>

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File "lib/parse.ml", line 192, characters 44-45:
192 |   | Error e -> Error (Jsont.Error.to_string e)
                                                  ^
Error: The value e has type string but an expression was expected of type
         Jsont.Error.t =
           Jsont.Error.Context.t * Jsont.Meta.t * Jsont.Error.kind

Edit applied successfully.

[
  {
    "content": "Task 1: Install jsont dependency in dune-project and lib/dune",
    "status": "completed",
    "priority": "high",
    "id": "1"
  },
  {
    "content": "Task 2: Create tools/ts-to-ast.ts bridge script and package.json",
    "status": "completed",
    "priority": "high",
    "id": "2"
  },
  {
    "content": "Task 3: Create lib/parse.ml with jsont decoder for ESTree JSON",
    "status": "completed",
    "priority": "high",
    "id": "3"
  },
  {
    "content": "Task 4: Create lib/subprocess.ml for bun bridge execution",
    "status": "completed",
    "priority": "high",
    "id": "4"
  },
  {
    "content": "Task 5: Wire up parse_file entry point in cloudlang.ml",
    "status": "completed",
    "priority": "high",
    "id": "5"
  },
  {
    "content": "Task 6: Wire up CLI in bin/main.ml for .ts file processing",
    "status": "completed",
    "priority": "high",
    "id": "6"
  },
  {
    "content": "Task 7: Create integration test test/test_parse.ml",
    "status": "pending",
    "priority": "medium",
    "id": "7"
  },
  {
    "content": "Run dune pkg lock to resolve dependencies",
    "status": "completed",
    "priority": "high",
    "id": "8"
  },
  {
    "content": "Verify build passes with dune build",
    "status": "completed",
    "priority": "high",
    "id": "9"
  },
  {
    "content": "Verify tests pass with dune runtest",
    "status": "in_progress",
    "priority": "high",
    "id": "10"
  }
]

<file>
00001| let () =
00002|   print_endline "Running CloudLang tests...";
00003| 
00004|   Test_scope.run ();
00005|   print_endline "  scope analysis: OK";
00006| 
00007|   Test_decompose.run ();
00008|   print_endline "  decomposition: OK";
00009| 
00010|   Test_ir.run ();
00011|   print_endline "  IR output: OK";
00012| 
00013|   Test_durable_object_hints.run ();
00014|   print_endline "  durable object hints: OK";
00015| 
00016|   Test_generate.run ();
00017|   print_endline "  generated output: OK";
00018| 
00019|   print_endline "";
00020|   print_endline "All tests passed!"
00021| 

(End of file - total 21 lines)
</file>

type analysis_result = {
  closures : closure_info list;
  module_vars : var_info list;
  exports : string list;
}

<file>
00036|   assert (List.length analysis_from_file.closures = 4);
00037| 
00038|   (* Verify specific closures exist *)
00039|   let has_closure name analysis =
00040|     List.exists (fun (c : Cloudlang.Scope.closure_info) -> c.name = name) analysis.closures
00041|   in
00042|   assert (has_closure "put" analysis_from_file);
00043|   assert (has_closure "get" analysis_from_file);
00044|   assert (has_closure "cachedGet" analysis_from_file);
00045|   assert (has_closure "handleRequest" analysis_from_file);
00046| 
00047|   (* Verify same analysis results from both AST sources *)
00048|   assert (has_closure "put" analysis_from_fixture);
00049|   assert (has_closure "get" analysis_from_fixture);
00050|   assert (has_closure "cachedGet" analysis_from_fixture);
00051|   assert (has_closure "handleRequest" analysis_from_fixture);
00052| 
00053|   (* Both should produce same IR config *)
00054|   let config_from_file =
00055|     match Cloudlang.compile analysis_from_file with
00056|     | Ok c -> c
00057|     | Error e -> failwith (Printf.sprintf "compile (file) failed: %s" e)
00058|   in
00059| 
00060|   let config_from_fixture =
00061|     match Cloudlang.compile analysis_from_fixture with
00062|     | Error e -> failwith (Printf.sprintf "compile (fixture) failed: %s" e)
00063|     | Ok c -> c
00064|   in
00065| 
00066|   (* Same number of workers generated *)
00067|   assert (List.length config_from_file = List.length config_from_fixture);
00068|   assert (List.length config_from_file = 3);
00069| 
00070|   (* Verify expected worker names exist *)
00071|   let get_worker_names config =
00072|     List.filter_map
00073|       (function Cloudlang.Ir.Worker w -> Some w.name | _ -> None)
00074|       config
00075|   in
00076|   let names_from_file = get_worker_names config_from_file in
00077|   let names_from_fixture = get_worker_names config_from_fixture in
00078| 
00079|   assert (List.mem "storage" names_from_file);
00080|   assert (List.mem "cache" names_from_fil...

Edit applied successfully.

}

type analysis_result = {
  closures : closure_info list;
  module_vars : var_info list;
  exports : string list;
}

(** Check whether an init expression is [new Map(...)], [new Set(...)], etc. *)
let is_mutable_init = function
  | Ast.NewExpression { callee = Ast.Identifier { name }; _ }
    when name = "Map" || name = "Set" || name = "Array" ->
      true

<file>
00001| (** CloudLang: TypeScript -> Cloudflare Worker decomposition compiler.
00002| 
00003|     Pipeline: 1. [parse_file]: TypeScript file -> ESTree AST
00004|     2. [analyze]: AST -> scope/closure analysis
00005|     3. [compile]: analysis result -> IR config (Workers + bindings)
00006|     4. [generate]: IR config -> output string (wrangler configs + TS scripts) *)
00007| 
00008| module Ast = Ast
00009| module Ir = Ir
00010| module Scope = Scope
00011| module Decompose = Decompose
00012| module Parse = Parse
00013| module Subprocess = Subprocess
00014| 
00015| type error = string
00016| 
00017| val parse_file : ?tools_dir:string -> string -> (Ast.node, error) result
00018| (** [parse_file ~tools_dir filepath] parses a TypeScript file into an AST.
00019|     Runs the typescript-estree bridge via bun subprocess.
00020|     @param tools_dir The directory containing ts-to-ast.ts (default: "tools")
00021|     @param filepath The TypeScript file to parse *)
00022| 
00023| val analyze : Ast.node -> (Scope.analysis_result, error) result
00024| val compile : Scope.analysis_result -> (Ir.config, error) result
00025| val generate : Ir.config -> string
00026| 

(End of file - total 26 lines)
</file>

File "test/test_parse.ml", line 40, characters 66-74:
40 |     List.exists (fun c -> c.Cloudlang.Scope.name = name) analysis.closures
                                                                       ^^^^^^^^
Error: Unbound record field closures

File "test/test_parse.ml", line 40, characters 28-32:
40 |     List.exists (fun c -> c.name = name) analysis.closures
                                 ^^^^
Error: Unbound record field name

Edit applied successfully.

Success

Error: A running dune (pid: 277973) instance has locked the build directory.
If this is not the case, please delete "_build/.lock".

<file>
00001| (test
00002|  (name test_cloudlang)
00003|  (libraries cloudlang))
00004| 

(End of file - total 4 lines)
</file>

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<file>
00083| 
00084|        let if_statement_obj =
00085|          Jsont.Object.map ~kind:"IfStatement" (fun test consequent alternate ->
00086|              Ast.IfStatement { test; consequent; alternate })
00087|          |> Jsont.Object.mem "test" node
00088|          |> Jsont.Object.mem "consequent" node
00089|          |> Jsont.Object.opt_mem "alternate" (Jsont.option node)
00090|          |> Jsont.Object.skip_unknown |> Jsont.Object.finish
00091|        in
00092| 
00093|        let expression_statement_obj =
00094|          Jsont.Object.map ~kind:"ExpressionStatement" (fun expression ->
00095|              Ast.ExpressionStatement { expression })
00096|          |> Jsont.Object.mem "expression" node
00097|          |> Jsont.Object.skip_unknown |> Jsont.Object.finish

(File has more lines. Use 'offset' parameter to read beyond line 97)
</file>

Edit applied successfully.

Running CloudLang tests...
  scope analysis: OK
  decomposition: OK
  IR output: OK
  durable object hints: OK
  generated output: OK
  parse integration: OK

All tests passed!

[
  {
    "content": "Task 1: Install jsont dependency in dune-project and lib/dune",
    "status": "completed",
    "priority": "high",
    "id": "1"
  },
  {
    "content": "Task 2: Create tools/ts-to-ast.ts bridge script and package.json",
    "status": "completed",
    "priority": "high",
    "id": "2"
  },
  {
    "content": "Task 3: Create lib/parse.ml with jsont decoder for ESTree JSON",
    "status": "completed",
    "priority": "high",
    "id": "3"
  },
  {
    "content": "Task 4: Create lib/subprocess.ml for bun bridge execution",
    "status": "completed",
    "priority": "high",
    "id": "4"
  },
  {
    "content": "Task 5: Wire up parse_file entry point in cloudlang.ml",
    "status": "completed",
    "priority": "high",
    "id": "5"
  },
  {
    "content": "Task 6: Wire up CLI in bin/main.ml for .ts file processing",
    "status": "completed",
    "priority": "high",
    "id": "6"
  },
  {
    "content": "Task 7: Create integration test test/test_parse.ml",
    "status": "completed",
    "priority": "medium",
    "id": "7"
  },
  {
    "content": "Run dune pkg lock to resolve dependencies",
    "status": "completed",
    "priority": "high",
    "id": "8"
  },
  {
    "content": "Verify build passes with dune build",
    "status": "completed",
    "priority": "high",
    "id": "9"
  },
  {
    "content": "Verify tests pass with dune runtest",
    "status": "completed",
    "priority": "high",
    "id": "10"
  }
]

Title: Typed Linting with Project Service
Author: 
Published Date: 2025-05-29T00:00:00.000Z
URL: https://typescript-eslint.io/blog/project-service
Text: Typed Linting with Project Service | typescript-eslint
[Skip to main content] 
# Typed Linting with Project Service
May 29, 2025·8 min read
[![Josh Goldberg]] 
[Josh Goldberg] 
typescript-eslint Maintainer
["Typed linting"], or enabling ESLint rules to understand TypeScript types, is one of the best parts of typescript-eslint.
It enables a slew of[more powerful lint rules] that check for nuanced bugs, best practice violations, and other code issues that can only be detected using type information.
Typed linting hasn't always been straightforward to configure or performant at runtime.
We've seen users have to manage separate`tsconfig.eslint.json`files to enable typed linting —sometimes with different compiler options than the rest of the project.
Not ideal.
In typescript-eslint 8.0, we stabilized a**`parserOptions.projectService`**option that uses more powerful, streamlined TypeScript APIs than before.
The "Project Service" brings several benefits:
* ✍️**Configuration**: simpler ESLint configs for typed linting with no ESLint-specific TSConfig files
* 🧠**Predictability**: uses the same type information services as editors, including more reliability
* 🚀**Scalability**: supporting TypeScript project references for larger repositories (i.e. monorepos)
This blog post will cover how`parserOptions.projectService`simplifies configurations and aligns linting type information to what editors such as VS Code run with.
tip
See[Getting Started] to learn how to lint JavaScript and TypeScript code with typescript-eslint, then[Linting with Type Information] to onboard to typed linting.
## Introducing the Project Service[​] 
Back in[Relative TSConfig Projects with`parserOptions.project = true`> Project Services], we'd mentioned a replacement for`parserOptions.project`:
> > The downside of h

...