Cross-platform behavior verification project

task_id: ses_3ce038d81ffeIPvOJA8SE2pRrj (for resuming to continue this task if needed)

<task_result>
Now I have a comprehensive picture. Here is the detailed summary:

---

## CloudLang Project: Comprehensive Analysis

### Overview

CloudLang is an **early-stage experimental compiler** that takes **TypeScript source files**, analyzes their closure and scope structure, and **automatically decomposes them into multiple Cloudflare Workers** with appropriate bindings (KV, service bindings) and Durable Object recommendations. It is written in OCaml (Dune 3.20) and licensed GPL-3.0-or-later.

The project has **3 commits on main** (plus ~21 across older branches/restarts), indicating it has been restarted several times before settling on the current approach.

---

### 1. Compiler Phases

The compiler has a **4-phase pipeline**, all implemented and working end-to-end:

| Phase | Module | File | Description |
|-------|--------|------|-------------|
| **1. Parse** | `Subprocess` + `Parse` | `/home/jm/data/ai/cloudlang/lib/subprocess.ml` (lines 6-16), `/home/jm/data/ai/cloudlang/lib/parse.ml` (lines 1-191) | Shells out to `bun run tools/ts-to-ast.ts` to parse TypeScript via `@typescript-eslint/typescript-estree`, receives ESTree JSON, and deserializes it into OCaml `Ast.node` types using `jsont`. |
| **2. Analyze (Scope)** | `Scope` | `/home/jm/data/ai/cloudlang/lib/scope.ml` (lines 1-238) | Two-pass scope analysis: (1) collect module-scope declarations noting mutable state vs. functions, (2) for each arrow function, compute free variables, called functions, and mutable captures. Also collects exports (pass 3). |
| **3. Decompose + IR** | `Decompose` | `/home/jm/data/ai/cloudlang/lib/decompose.ml` (lines 1-411) | Groups closures into Worker groups by shared mutable state, computes cross-group service dependencies, infers Durable Object annotations with heuristic scoring, and converts groups to `Ir.config`. |
| **4. Generate (Codegen)** | `Cloudlang` (codegen in `cloudlang.ml...

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<file>
00001| module Ast = Ast
00002| module Ir = Ir
00003| module Scope = Scope
00004| module Decompose = Decompose
00005| module Parse = Parse
00006| module Subprocess = Subprocess
00007| 
00008| type error = string
00009| 
00010| (** Parse a TypeScript file into an AST.
00011| 
00012|     Runs the typescript-estree bridge via bun subprocess. *)
00013| let parse_file ?(tools_dir = "tools") (filepath : string) :
00014|     (Ast.node, error) result =
00015|   match Subprocess.run_bridge ~tools_dir filepath with
00016|   | Error e -> Error (Printf.sprintf "parse error: %s" e)
00017|   | Ok json -> (
00018|       match Parse.decode json with
00019|       | Error e -> Error (Printf.sprintf "parse error: %s" e)
00020|       | Ok node -> Ok node)
00021| 
00022| (** Analyse a TypeScript AST and decompose it into Worker groups. *)
00023| let analyze (program : Ast.node) : (Scope.analysis_result, error) result =
00024|   Scope.analyze program
00025|   |> Result.map_error (fun err ->
00026|       Printf.sprintf "analysis error: %s" (Scope.error_to_string err))
00027| 
00028| (** Decompose analysis results into Worker groups and convert to IR. *)
00029| let compile (analysis : Scope.analysis_result) : (Ir.config, error) result =
00030|   let groups = Decompose.decompose analysis in
00031|   Ok (Decompose.to_ir groups analysis)
00032| 
00033| (* --- Code generation: IR -> output string --- *)
00034| 
00035| (** Generate a JSON-style wrangler configuration for a binding. *)
00036| let generate_binding_json (b : Ir.binding) : string =
00037|   match b with
00038|   | Ir.D1Binding { name; database_id } ->
00039|       Printf.sprintf {|    { "binding": "%s", "database_id": "%s" }|} name
00040|         database_id
00041|   | Ir.KVBinding { name; namespace_id } ->
00042|       Printf.sprintf {|    { "binding": "%s", "id": "%s" }|} name namespace_id
00043|   | Ir.R2Binding { name; bucket_name } ->
00044|       Printf.sprintf {|    { "binding": "%s", "bucket_name": "%s" }|} name
00045...

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

<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>

<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."
00006|   else
00007|     let filename = Sys.argv.(1) in
00008|     match Cloudlang.parse_file filename with
00009|     | Error e -> Printf.eprintf "Error: %s\n" e
00010|     | Ok ast -> (
00011|         match Cloudlang.analyze ast with
00012|         | Error e -> Printf.eprintf "Error: %s\n" e
00013|         | Ok analysis -> (
00014|             match Cloudlang.compile analysis with
00015|             | Error e -> Printf.eprintf "Error: %s\n" e
00016|             | Ok config ->
00017|                 let output = Cloudlang.generate config in
00018|                 print_endline output))
00019| 

(End of file - total 19 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 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|   jsont
00016|   bytesrw))
00017| 

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

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<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|   Test_parse.run ();
00020|   print_endline "  parse integration: OK";
00021| 
00022|   print_endline "";
00023|   print_endline "All tests passed!"
00024| 

(End of file - total 24 lines)
</file>

<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 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>

/home/jm/data/ai/cloudlang/tools/ts-to-ast.ts
/home/jm/data/ai/cloudlang/tools/bun.lock
/home/jm/data/ai/cloudlang/tools/node_modules/balanced-match/LICENSE.md
/home/jm/data/ai/cloudlang/tools/node_modules/balanced-match/.github/FUNDING.yml
/home/jm/data/ai/cloudlang/tools/node_modules/balanced-match/index.js
/home/jm/data/ai/cloudlang/tools/node_modules/balanced-match/README.md
/home/jm/data/ai/cloudlang/tools/node_modules/balanced-match/package.json
/home/jm/data/ai/cloudlang/tools/node_modules/picomatch/LICENSE
/home/jm/data/ai/cloudlang/tools/node_modules/picomatch/README.md
/home/jm/data/ai/cloudlang/tools/node_modules/picomatch/package.json
/home/jm/data/ai/cloudlang/tools/node_modules/picomatch/lib/scan.js
/home/jm/data/ai/cloudlang/tools/node_modules/picomatch/lib/constants.js
/home/jm/data/ai/cloudlang/tools/node_modules/picomatch/lib/utils.js
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/home/jm/data/ai/cloudlang/tools/node_modules/ms/readme.md
/home/jm/data/ai/cloudlang/tools/node_modules/ms/index.js
/home/jm/data/ai/cloudlang/tools/node_modules/ms/license.md
/home/jm/data/ai/cloudlang/tools/node_modules/ms/package.json
/home/jm/data/ai/cloudlang/tools/node_modules/eslint-visitor-keys/lib/index.js
/home/jm/data/ai/cloudlang/tools/node_modules/eslint-visitor-keys/lib/visitor-keys.js
/home/jm/data/ai/cloudlang/tools/node_modules/eslint-visitor-keys/LICENSE
/home/jm/data/ai/cloudlang/tools/node_modules/eslint-visitor-keys/README.md
/home/jm/data/ai/cloudlang/tools/node_modules/eslint-visitor-keys/package.json
/home/jm/data/ai/cloudlang/tools/node_modules/typescript/ThirdPartyNoticeText.txt
/home/jm/data/ai/cloudlang/tools/node_modules/typescript/LICENSE.txt
/home/jm/data/ai/cloudlang/tools/node_modules/ts-api-utils/LICENSE.md
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/home/jm/data/ai/cloudlang/docs/durable_objects_ir_design.md

/home/jm/data/ai/cloudlang/tools/ts-to-ast.ts
/home/jm/data/ai/cloudlang/tools/node_modules/eslint-visitor-keys/dist/visitor-keys.d.ts
/home/jm/data/ai/cloudlang/tools/node_modules/eslint-visitor-keys/dist/index.d.ts
/home/jm/data/ai/cloudlang/tools/node_modules/typescript/lib/lib.es2018.regexp.d.ts
/home/jm/data/ai/cloudlang/tools/node_modules/typescript/lib/lib.es6.d.ts
/home/jm/data/ai/cloudlang/tools/node_modules/typescript/lib/lib.webworker.iterable.d.ts
/home/jm/data/ai/cloudlang/tools/node_modules/typescript/lib/lib.esnext.promise.d.ts
/home/jm/data/ai/cloudlang/tools/node_modules/typescript/lib/lib.es2019.array.d.ts
/home/jm/data/ai/cloudlang/tools/node_modules/typescript/lib/lib.es2019.d.ts
/home/jm/data/ai/cloudlang/tools/node_modules/typescript/lib/lib.esnext.disposable.d.ts
/home/jm/data/ai/cloudlang/tools/node_modules/typescript/lib/lib.es2017.typedarrays.d.ts
/home/jm/data/ai/cloudlang/tools/node_modules/typescript/lib/lib.es2024.arraybuffer.d.ts
/home/jm/data/ai/cloudlang/tools/node_modules/typescript/lib/lib.decorators.d.ts
/home/jm/data/ai/cloudlang/tools/node_modules/typescript/lib/lib.es2015.symbol.wellknown.d.ts
/home/jm/data/ai/cloudlang/tools/node_modules/typescript/lib/lib.dom.iterable.d.ts
/home/jm/data/ai/cloudlang/tools/node_modules/typescript/lib/lib.esnext.d.ts
/home/jm/data/ai/cloudlang/tools/node_modules/typescript/lib/lib.es2017.object.d.ts
/home/jm/data/ai/cloudlang/tools/node_modules/typescript/lib/lib.es2020.date.d.ts
/home/jm/data/ai/cloudlang/tools/node_modules/typescript/lib/lib.webworker.d.ts
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/home/jm/data/ai/cloudlang/tools/node_modules/typescript/lib/lib.es2017.string.d.ts
/home/jm/data/ai/cloudlang/tools/node_modules/typescript/lib/lib.es2015.promise.d.ts
/home/jm/data/ai/cloudlang/tools/node_modules/typescript/lib/lib.es2021.weakref.d.ts
/home/j...

<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>

All 4 tools executed successfully.

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

<file>
00001| import { parse } from "@typescript-eslint/typescript-estree";
00002| import { readFileSync } from "fs";
00003| 
00004| const filepath = process.argv[2];
00005| if (!filepath) {
00006| 	console.error("Usage: ts-to-ast.ts <filepath>");
00007| 	process.exit(1);
00008| }
00009| 
00010| const code = readFileSync(filepath, "utf-8");
00011| const ast = parse(code, {
00012| 	loc: false,
00013| 	range: false,
00014| 	tokens: false,
00015| 	comment: false,
00016| });
00017| 
00018| console.log(JSON.stringify(ast));
00019| console.clear();
00020| 

(End of file - total 20 lines)
</file>

<file>
00001| (** Subprocess execution for the TypeScript-to-AST bridge.
00002| 
00003|     Shells out to bun to run the typescript-estree bridge script,
00004|     capturing the JSON AST output. *)
00005| 
00006| let run_bridge ?(tools_dir = "tools") (filepath : string) :
00007|     (string, string) result =
00008|   let cmd = Printf.sprintf "bun run %s/ts-to-ast.ts %s" tools_dir filepath in
00009|   let ic = Unix.open_process_in cmd in
00010|   let output = In_channel.input_all ic in
00011|   let status = Unix.close_process_in ic in
00012|   match status with
00013|   | Unix.WEXITED 0 -> Ok output
00014|   | Unix.WEXITED n -> Error (Printf.sprintf "bridge exited with code %d" n)
00015|   | Unix.WSIGNALED n -> Error (Printf.sprintf "bridge killed by signal %d" n)
00016|   | Unix.WSTOPPED n -> Error (Printf.sprintf "bridge stopped by signal %d" n)
00017| 

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

<file>
00001| # Durable Objects Inference In CloudLang IR
00002| 
00003| ## Purpose
00004| 
00005| This document explains how CloudLang decides when a Worker group is a good fit
00006| for Cloudflare Durable Objects (DOs), what gets emitted in IR today, and what
00007| resulting Worker/DO topology can be expected.
00008| 
00009| ## Current Implementation
00010| 
00011| CloudLang currently emits DO recommendations as annotations on workers:
00012| 
00013| - `worker.do_annotation : do_annotation option`
00014| - inferred in `Decompose.infer_do_annotation`
00015| - surfaced in generated output as `"durable_object_hint"`
00016| 
00017| CloudLang does not yet auto-lower these hints into concrete
00018| `Ir.DurableObject` resources and bindings. The hint layer is intended as the
00019| decision step before explicit DO provisioning.
00020| 
00021| ## End-To-End Pipeline
00022| 
00023| ```mermaid
00024| flowchart LR
00025|   A[TypeScript/ESTree AST] --> B[Scope.analyze]
00026|   B --> C[Closure analysis\nfree vars, calls, mutable captures]
00027|   C --> D[Decompose.decompose\nworker groups]
00028|   D --> E[infer_markers]
00029|   E --> F[do_fit_score 0..100]
00030|   F --> G{score >= 60?}
00031|   G -- yes --> H[infer_do_annotation]
00032|   G -- no --> I[No DO hint]
00033|   H --> J[to_ir Worker with do_annotation]
00034|   I --> J
00035| ```
00036| 
00037| ## Marker Inference Rules
00038| 
00039| Markers are inferred per worker group from group structure and function names.
00040| 
00041| | Marker | Trigger |
00042| |---|---|
00043| | `SerialConflictHotspot` | `owned_state <> []` |
00044| | `StrictOrderingRequired` | `owned_state <> []` |
00045| | `EntityAffinityKeyed` | `owned_state <> []` (`key_hint = "<group>_id"`) |
00046| | `GlobalSingletonNeeded` | `owned_state <> [] && functions > 1` |
00047| | `ConsistencyBoundaryCrossed` | `owned_state <> [] && service_deps <> []` |
00048| | `HighFanInCoordinator` | `service_deps >= 2` |
00049| | `RealtimeFanout` | name contain...

<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...

User has answered your questions: "The current compiler only generates Worker script *stubs* (e.g., `// handler: put`). The biggest piece of work is implementing actual function body lowering — transpiling the TypeScript function bodies into Worker-compatible code that uses KV for state and fetch() for cross-service calls. Should the plan include building this out, or do you have a different approach in mind for how the distributed version should actually run?"="Build body lowering in the compiler (Recommended)", "For verifying behavioral equivalence, we need to run the same test suite against both targets. What's your preferred testing infrastructure?"="Miniflare (local Cloudflare simulator) (Recommended)", "How complex should the Task API be in its first iteration? This affects how many new AST nodes and language features need to be added to the compiler."="Minimal CRUD (Recommended)". You can now continue with the user's answers in mind.

User has answered your questions: "One important design question about the body lowering: when the compiler rewrites `store.get(key)` into `await env.STORE.get(key)` (KV API), and rewrites `get(key)` into `await env.STORAGE.fetch('/get', { body: JSON.stringify({ key }) })`, should it also generate a request routing layer in each Worker that dispatches incoming fetch requests to the right handler function? i.e., should the generated Worker script include a URL-based router like `if (url.pathname === '/put') { ... } else if (url.pathname === '/get') { ... }`?"="Simple pathname router (Recommended)". You can now continue with the user's answers in mind.

Executed 2/3 tools successfully. 1 failed.

Title: cloudflare/capnweb: JavaScript/TypeScript-native, low ... - GitHub
Author: cloudflare
URL: https://github.com/cloudflare/capnweb
Text: GitHub - cloudflare/capnweb: JavaScript/TypeScript-native, low-boilerplate, object-capability RPC system
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[cloudflare] /**[capnweb] **Public
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JavaScript/Typ

Title: Cap'n Web: a new RPC system for browsers and web servers
Published Date: 2025-09-22T00:00:00.000Z
URL: https://blog.cloudflare.com/capnweb-javascript-rpc-library/
Text: Cap'n Web: a new RPC system for browsers and web servers
[Get Started Free] |[Contact Sales] |
▼[![The Cloudflare Blog]] ## [The Cloudflare Blog] 
Subscribe to receive notifications of new posts:
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# Cap'n Web: a new RPC system for browsers and web servers
2025-09-22
* [![Kenton Varda]] 
[Kenton Varda] 
* [![Steve Faulkner]] 
[Steve Faulkner] 
12 min read
This post is also available in[简体中文].
![] 
Allow us to introduce[Cap'n Web], an RPC protocol and implementation in pure TypeScript.
Cap'n Web is a spiritual sibling to[Cap'n Proto], an RP...

## Search Results

The **Cap'n Web** repository on GitHub (`cloudflare/capnweb`) is a JavaScript-native RPC system developed by Cloudflare. It is designed to bring the power and efficiency of **Cap'n Proto RPC** to web-centric environments like browsers, Web Workers, and Cloudflare Workers without the complexity of schemas.

### Key Details
*   **GitHub Repository:** [cloudflare/capnweb](https://github.com/cloudflare/capnweb)
*   **Author:** Kenton Varda (the creator of Cap'n Proto and Protocol Buffers v2).
*   **Primary Goal:** To provide a "capability-based" RPC system that feels like native JavaScript.

### How it relates to Cap'n Proto
While it is a "spiritual sibling" to Cap'n Proto, it has several key differences:
*   **Schema-less:** Unlike the original Cap'n Proto, Cap'n Web does not require a `.capnp` schema file. You can pass objects and call methods directly.
*   **JavaScript-Native:** It is optimized for the JavaScript type system and `async/await` patterns.
*   **Serialization:** It uses a human-readable/native-friendly serialization rather than the strict binary format of Cap'n Proto, making it easier to use in browsers.

### Role in Cloudflare & Web Workers
1.  **Workers RPC:** Cap'n Web is the underlying technology that powers the high-level **Workers RPC** system in Cloudflare Workers. It allows different Workers or Durable Objects to call each other's methods as if they were local objects.
2.  **Web Workers:** It can be used via `MessageChannel` to facilitate communication between a main browser thread and a Web Worker. Instead of manually using `postMessage()` and `onmessage` listeners, you can use Cap'n Web to "export" an object from a worker and "import" it into the main thread, calling its methods asynchronously.
3.  **Object Capabilities:** Like Cap'n Proto, it is **capability-based**. If you have a reference to an object, you have the "permission" to use it. You can even pass a "callback" object across the RPC bridge, and the other side can c...

"Directory Structure of cloudflare/capnweb:\n\n<structure>\n├── LICENSE.txt\n├── README.md\n├── SECURITY.md\n├── __tests__/\n│   ├── index.test.ts\n│   ├── test-server-workerd.js\n│   ├── test-server.ts\n│   ├── test-util.ts\n│   ├── tsconfig.json\n│   └── workerd.test.ts\n├── examples/\n│   ├── README.md\n│   ├── batch-pipelining/\n│   │   ├── README.md\n│   │   ├── client.mjs\n│   │   └── server-node.mjs\n│   └── worker-react/\n│       ├── README.md\n│       ├── src/\n│       ├── web/\n│       └── wrangler.toml\n├── package-lock.json\n├── package.json\n├── protocol.md\n├── src/\n│   ├── batch.ts\n│   ├── core.ts\n│   ├── index.ts\n│   ├── map.ts\n│   ├── messageport.ts\n│   ├── rpc.ts\n│   ├── serialize.ts\n│   ├── types.d.ts\n│   └── websocket.ts\n├── tsconfig.json\n├── tsup.config.ts\n├── vitest.config.ts\n└── vitest.shims.d.ts\n</structure>\n\nTip: Only showing 3 levels of depth. Use `get_repo_structure` on a subdirectory to see deeper, or `read_file` to read content. To understand the repository, view at: https://zread.ai/cloudflare/capnweb"

Executed 0/5 tools successfully. 5 failed.

"File content for src/serialize.ts in cloudflare/capnweb.\nSource: https://github.com/cloudflare/capnweb/blob/master/src/serialize.ts\n\n<file_content>\n// Copyright (c) 2025 Cloudflare, Inc.\n// Licensed under the MIT license found in the LICENSE.txt file or at:\n//     https://opensource.org/license/mit\n\nimport { StubHook, RpcPayload, typeForRpc, RpcStub, RpcPromise, LocatedPromise, RpcTarget, PropertyPath, unwrapStubAndPath } from \"./core.js\";\n\nexport type ImportId = number;\nexport type ExportId = number;\n\n// =======================================================================================\n\nexport interface Exporter {\n  exportStub(hook: StubHook): ExportId;\n  exportPromise(hook: StubHook): ExportId;\n  getImport(hook: StubHook): ImportId | undefined;\n\n  // If a serialization error occurs after having exported some capabilities, this will be called\n  // to roll back the exports.\n  unexport(ids: Array<ExportId>): void;\n\n  onSendError(error: Error): Error | void;\n}\n\nclass NullExporter implements Exporter {\n  exportStub(stub: StubHook): never {\n    throw new Error(\"Cannot serialize RPC stubs without an RPC session.\");\n  }\n  exportPromise(stub: StubHook): never {\n    throw new Error(\"Cannot serialize RPC stubs without an RPC session.\");\n  }\n  getImport(hook: StubHook): ImportId | undefined {\n    return undefined;\n  }\n  unexport(ids: Array<ExportId>): void {}\n\n  onSendError(error: Error): Error | void {}\n}\n\nconst NULL_EXPORTER = new NullExporter();\n\n// Maps error name to error class for deserialization.\nconst ERROR_TYPES: Record<string, any> = {\n  Error, EvalError, RangeError, ReferenceError, SyntaxError, TypeError, URIError, AggregateError,\n  // TODO: DOMError? Others?\n};\n\n// Polyfill type for UInt8Array.toBase64(), which has started landing in JS runtimes but is not\n// supported everywhere just yet.\ninterface Uint8Array {\n  toBase64?(options?: {\n    alphabet?: \"base64\" | \"base64url\",\n    omitPadding?: bo...

"File content for protocol.md in cloudflare/capnweb.\nSource: https://github.com/cloudflare/capnweb/blob/master/protocol.md\n\n<file_content>\n# RPC Protocol\n\n## Serialization\n\nThe protocol uses JSON as its basic serialization, with a preprocessing step to support non-JSON types.\n\nWhy not a binary format? While the author is a big fan of optimized binary protocols in other contexts, it cannot be denied that in a browser, JSON has big advantages. Being built-in to the browser gives it a leg up in performance, code size, and developer tooling.\n\nNon-JSON types are encoded using arrays. The first element of the array contains a string type code, and the remaining elements contain the parameters needed to construct that type. For example, a `Date` might be encoded as:\n\n```\n[\"date\", 1749342170815]\n```\n\nTo encode a literal array, the array must be \"escaped\" by wrapping it in a second layer of array:\n\n```\n[[\"just\", \"an\", \"array\"]]\n```\n\n## Client vs. Server\n\nThe protocol does not have a \"client\" or a \"server\"; it is fully bidirectional. Either side can call interfaces exported by the other.\n\nWith that said, for documentation purposes, we often use the words \"client\" and \"server\" when describing specific interactions, in order to make the language easier to understand. The word \"client\" generally refers to the caller of an RPC, or the importer of a stub. The word \"server\" refers to the callee, or the exporter. This is merely a convention to make explanations more natural.\n\n## Imports and Exports\n\nEach side of an RPC session maintains two tables: imports and exports. One side's exports correspond to the other side's imports. Imports and exports are assigned sequential numeric IDs. However, in some cases an ID needs to be chosen by the importing side, and in some cases by the exporting side. In order to avoid conflicts:\n\n* When the importing side chooses the ID, it chooses the next positive ID (starting from 1 and going up).\n...

MCP error -429: {"error":{"code":"1302","message":"Rate limit reached for requests"}}

"File content for src/map.ts in cloudflare/capnweb.\nSource: https://github.com/cloudflare/capnweb/blob/master/src/map.ts\n\n<file_content>\n// Copyright (c) 2025 Cloudflare, Inc.\n// Licensed under the MIT license found in the LICENSE.txt file or at:\n//     https://opensource.org/license/mit\n\nimport { StubHook, PropertyPath, RpcPayload, RpcStub, RpcPromise, withCallInterceptor, ErrorStubHook, mapImpl, PayloadStubHook, unwrapStubAndPath, unwrapStubNoProperties } from \"./core.js\";\nimport { Devaluator, Exporter, Importer, ExportId, ImportId, Evaluator } from \"./serialize.js\";\n\nlet currentMapBuilder: MapBuilder | undefined;\n\n// We use this type signature when building the instructions for type checking purposes. It\n// describes a subset of the overall RPC protocol.\nexport type MapInstruction =\n    | [\"pipeline\", number, PropertyPath]\n    | [\"pipeline\", number, PropertyPath, unknown]\n    | [\"remap\", number, PropertyPath, [\"import\", number][], MapInstruction[]]\n\nclass MapBuilder implements Exporter {\n  private context:\n    | {parent: undefined, captures: StubHook[], subject: StubHook, path: PropertyPath}\n    | {parent: MapBuilder, captures: number[], subject: number, path: PropertyPath};\n  private captureMap: Map<StubHook, number> = new Map();\n\n  private instructions: MapInstruction[] = [];\n\n  constructor(subject: StubHook, path: PropertyPath) {\n    if (currentMapBuilder) {\n      this.context = {\n        parent: currentMapBuilder,\n        captures: [],\n        subject: currentMapBuilder.capture(subject),\n        path\n      };\n    } else {\n      this.context = {\n        parent: undefined,\n        captures: [],\n        subject,\n        path\n      };\n    }\n\n    currentMapBuilder = this;\n  }\n\n  unregister() {\n    currentMapBuilder = this.context.parent;\n  }\n\n  makeInput(): MapVariableHook {\n    return new MapVariableHook(this, 0);\n  }\n\n  makeOutput(result: RpcPayload): StubHook {\n    let devalued: unknown;\n    ...

"Search results for cloudflare/capnweb\n\n:[1]: Cloudflare Workers RPC Interoperability\nSource: https://zread.ai/cloudflare/capnweb/30-cloudflare-workers-rpc-interoperability\n<excerpt>\n---\nslug:30-cloudflare-workers-rpc-interoperability\nblog_type:normal\n---\n\n\n\nThe Cloudflare Workers runtime includes a built-in JavaScript-native RPC system, and Cap'n Web is designed to interoperate seamlessly\n</excerpt>\n\n<excerpt>\n:#333\n    style G fill:#fcf,stroke:#333\n```\n\n## Native Userspace Interoperability Patterns\n\nThe most powerful aspect of this interoperability is that native and userspace RPC objects can be freely mixed\n</excerpt>\n\n<excerpt>\nIntegration\n\nCap'n Web provides two dedicated functions for implementing RPC servers in Cloudflare Workers: one for WebSocket sessions and one for HTTP batch sessions.\n\n### WebSocket RPC Server\n\nThe `\n</excerpt>\n\n<excerpt>\n`](__tests__/test-server-workerd.js#L1-L82) serves as a comprehensive example of how to implement an RPC server in Workers, including:\n\n- Multiple RPC target classes (Counter, TestTarget, TestDo)\n- Method\n</excerpt>\n\n<excerpt>\n</CgxTip>\n\n## Next Steps\n\nTo deepen your understanding of Cloudflare Workers RPC interoperability, explore these related topics:\n\n- [Cloudflare Workers Server](16-cloudflare-workers-server) for detailed\n</excerpt>\n\n---\n\n[2]: Cloudflare Workers Server\nSource: https://zread.ai/cloudflare/capnweb/16-cloudflare-workers-server\n<excerpt>\n---\nslug:16-cloudflare-workers-server\nblog_type:normal\n---\n\n\n\nThis page provides a comprehensive guide to implementing RPC servers in the Cloudflare Workers runtime using Cap'n Web.\n</excerpt>\n\n<excerpt>\nSources: [src/batch.ts](src/batch.ts#L1-L205), [src/websocket.ts](src/websocket.ts#L1-L139)\n\n## Basic Server Implementation\n\nThe simplest way to create an RPC server in Cloudflare Workers is using the\n</excerpt>\n\n<excerpt>\nCreates a new RPC session using `newWebSocketRpcSession(server, localMain...

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Source Code

Cloudflare Workers RPC Interoperability | cloudflare/capnweb | Zread

Deep Dive

# Cloudflare Workers RPC Interoperability[Report Issue](https://zhipu-ai.feishu.cn/share/base/form/shrcnINAJouU6SiDAHXY9N0WHAJ?prefill_Which+article+are+you+referring+to%3F+%28URL+to+the+article%29=https://zread.ai/cloudflare/capnweb/30-cloudflare-workers-rpc-interoperability)

\- minLevel: Advanced

The Cloudflare Workers runtime includes a built-in JavaScript-native RPC system, and Cap'n Web is designed to interoperate seamlessly with this native implementation. This interoperability allows you to mix and match the native `RpcTarget` and `RpcStub` types from the `"cloudflare:workers"` module with Cap'n Web's userspace implementation, providing flexibility and enabling gradual migration or hybrid architectures.

## Architecture Overview[](#architecture-overview)

The interoperability is built on three foundational principles:

1.  **Conditional Native Integration**: When running in a Cloudflare Workers environment, Cap'n Web automatically uses the native `RpcTarget` class from `"cloudflare:workers"` rather than its own polyfill \[src/core.ts#L15-L26\]. This is detected by checking the `navigator.userAgent` for `"Cloudflare-Workers"`.
    
2.  **Type System Unification**: Both systems share the same branding system through the interface, which uses a unique symbol to provide nominal typing fo...

...65229 bytes truncated...

The tool call succeeded but the output was truncated. Full output saved to: /home/jm/.local/share/opencode/tool-output/tool_c322a8896001a7t5QqquTqtMId
Use the Task tool to have explore agent process this file with Grep and Read (with offset/limit). Do NOT read the full file yourself - delegate to save context.

No files found

[
  {
    "id": "0",
    "content": "Create .claude/context/ directory structure",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "1",
    "content": "Write .claude/context/capnweb-integration.md — Cap'n Web integration strategy document",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "2",
    "content": "Phase 0: Write examples/task-api.ts — minimal CRUD source program",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "3",
    "content": "Phase 0: Write examples/task-api-server.ts — Node.js/Bun HTTP reference server",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "4",
    "content": "Phase 1: Validate CloudLang parses task-api.ts (fix any parse failures)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "5",
    "content": "Phase 2: Validate decomposition produces expected 2-group topology + add tests",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "6",
    "content": "Phase 3a: AST-to-TypeScript emitter (lib/emit.ml) — pretty-print AST back to TS",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "7",
    "content": "Phase 3a: State access rewriting (lib/lower.ml) — Map.get→KV.get, Map.set→KV.put, etc.",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "8",
    "content": "Phase 3a: Cross-service call rewriting — local fn call → JSON-over-fetch to service binding",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "9",
    "content": "Phase 3a: Router generation — per-Worker fetch handler dispatching by pathname",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "10",
    "content": "Phase 3a: Async propagation — functions touching KV/service become async, callers await",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "11",
    "content": "Phase 4: Wrangler config generation (lib/wrangler.ml) — real TOML for Miniflare",
    "status": "pending",
    "priori...

[
  {
    "id": "0",
    "content": "Create .claude/context/ directory structure",
    "status": "in_progress",
    "priority": "high"
  },
  {
    "id": "1",
    "content": "Write .claude/context/capnweb-integration.md — Cap'n Web integration strategy document",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "2",
    "content": "Phase 0: Write examples/task-api.ts — minimal CRUD source program",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "3",
    "content": "Phase 0: Write examples/task-api-server.ts — Node.js/Bun HTTP reference server",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "4",
    "content": "Phase 1: Validate CloudLang parses task-api.ts (fix any parse failures)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "5",
    "content": "Phase 2: Validate decomposition produces expected 2-group topology + add tests",
    "status": "pending",
    "priority": "high"
  },
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    "content": "Phase 3a: AST-to-TypeScript emitter (lib/emit.ml) — pretty-print AST back to TS",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "7",
    "content": "Phase 3a: State access rewriting (lib/lower.ml) — Map.get→KV.get, Map.set→KV.put, etc.",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "8",
    "content": "Phase 3a: Cross-service call rewriting — local fn call → JSON-over-fetch to service binding",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "9",
    "content": "Phase 3a: Router generation — per-Worker fetch handler dispatching by pathname",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "10",
    "content": "Phase 3a: Async propagation — functions touching KV/service become async, callers await",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "11",
    "content": "Phase 4: Wrangler config generation (lib/wrangler.ml) — real TOML for Miniflare",
    "status": "pending",
    "pr...

[
  {
    "id": "0",
    "content": "Create .claude/context/ directory structure",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "1",
    "content": "Write .claude/context/capnweb-integration.md — Cap'n Web integration strategy document",
    "status": "in_progress",
    "priority": "high"
  },
  {
    "id": "2",
    "content": "Phase 0: Write examples/task-api.ts — minimal CRUD source program",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "3",
    "content": "Phase 0: Write examples/task-api-server.ts — Node.js/Bun HTTP reference server",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "4",
    "content": "Phase 1: Validate CloudLang parses task-api.ts (fix any parse failures)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "5",
    "content": "Phase 2: Validate decomposition produces expected 2-group topology + add tests",
    "status": "pending",
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    "content": "Phase 3a: AST-to-TypeScript emitter (lib/emit.ml) — pretty-print AST back to TS",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "7",
    "content": "Phase 3a: State access rewriting (lib/lower.ml) — Map.get→KV.get, Map.set→KV.put, etc.",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "8",
    "content": "Phase 3a: Cross-service call rewriting — local fn call → JSON-over-fetch to service binding",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "9",
    "content": "Phase 3a: Router generation — per-Worker fetch handler dispatching by pathname",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "10",
    "content": "Phase 3a: Async propagation — functions touching KV/service become async, callers await",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "11",
    "content": "Phase 4: Wrangler config generation (lib/wrangler.ml) — real TOML for Miniflare",
    "status": "pending",
    "...

total 0
drwxrwxr-x 1 jm jm  0 Feb  6 09:06 .
drwxrwxr-x 1 jm jm 28 Feb  6 09:06 ..

[
  {
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    "content": "Create .claude/context/ directory structure",
    "status": "completed",
    "priority": "high"
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    "status": "pending",
    "priority": "high"
  },
  {
    "id": "4",
    "content": "Phase 1: Validate CloudLang parses task-api.ts (fix any parse failures)",
    "status": "pending",
    "priority": "high"
  },
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    "status": "pending",
    "priority": "high"
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  {
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    "content": "Phase 3a: AST-to-TypeScript emitter (lib/emit.ml)",
    "status": "pending",
    "priority": "high"
  },
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    "content": "Phase 3a: State access rewriting (lib/lower.ml)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "8",
    "content": "Phase 3a: Cross-service call rewriting",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "9",
    "content": "Phase 3a: Router generation",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "10",
    "content": "Phase 3a: Async propagation",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "11",
    "content": "Phase 4: Wrangler config generation (lib/wrangler.ml)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "12",
    "content": "Phase 5: Verification harness (verify/)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "13",
    "content": "Phase 6: OCaml test suite",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "14",
    "content": "Phase 3b (future): Replace JSON-over-fetch with Cap'n We...

[
  {
    "id": "0",
    "content": "Create .claude/context/ directory structure",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "1",
    "content": "Write .claude/context/capnweb-integration.md",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "2",
    "content": "Phase 0: Write examples/task-api.ts",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "3",
    "content": "Phase 0: Write examples/task-api-server.ts",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "4",
    "content": "Phase 1: Validate CloudLang parses task-api.ts (fix any parse failures)",
    "status": "in_progress",
    "priority": "high"
  },
  {
    "id": "5",
    "content": "Phase 2: Validate decomposition produces expected 2-group topology + add tests",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "6",
    "content": "Phase 3a: AST-to-TypeScript emitter (lib/emit.ml)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "7",
    "content": "Phase 3a: State access rewriting (lib/lower.ml)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "8",
    "content": "Phase 3a: Cross-service call rewriting",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "9",
    "content": "Phase 3a: Router generation",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "10",
    "content": "Phase 3a: Async propagation",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "11",
    "content": "Phase 4: Wrangler config generation (lib/wrangler.ml)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "12",
    "content": "Phase 5: Verification harness (verify/)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "13",
    "content": "Phase 6: OCaml test suite",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "14",
    "content": "Phase 3b (future): Replace JSON-over-fetch with Cap'...

Success

Warning: As this is not the main instance of Dune it is unable to locate the
executable "cloudlang" within this project. Dune will attempt to resolve the
executable's name within your PATH only.
Error: Program 'cloudlang' not found!

--- Worker: tasks_nextId ---
== wrangler.toml ==
{
  "name": "tasks_nextId",
  "kv_namespaces": [
    { "binding": "TASKS", "id": "cloudlang-tasks" },
    { "binding": "NEXTID", "id": "cloudlang-nextId" }
  ],
  "durable_object_hint": {
    "binding_name": "TASKS_NEXTID_DO",
    "class_name": "TasksNextIdCoordinatorDO",
    "fit_score": 70,
    "intent": "per_entity_serial",
    "routing": "deterministic_name",
    "storage": "sqlite",
    "alarm_mode": "none",
    "pitr_required": true,
    "markers": ["serial_conflict_hotspot", "strict_ordering_required", "entity_affinity_keyed", "global_singleton_needed"],
    "reasons": ["Multiple requests may contend on shared mutable state.", "Operation order is important for correctness.", "Deterministic entity affinity is available (key hint: tasks_nextId_id).", "Group behaves like a single logical coordinator."]
  }
}

== script ==
interface Env {
  TASKS: KVNamespace;
  NEXTID: KVNamespace;
}

export default {
  async fetch(request: Request, env: Env): Promise<Response> {
  const tasks = env.TASKS;
  const nextId = env.NEXTID;

  // handler: createTask
  // handler: getTask
  // handler: updateTask
  // handler: deleteTask
  return new Response("ok");
  }
};

--- Worker: handleRequest ---
== wrangler.toml ==
{
  "name": "handleRequest",
  "services": [
    { "binding": "TASKS_NEXTID", "service": "tasks_nextId" }
  ],
  "routes": ["/handleRequest"]
}

== script ==
interface Env {
  TASKS_NEXTID: Fetcher;
}

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

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

Task API reference server running on http://localhost:3000
Endpoints:
  POST   /tasks          - create task (body = title string)
  GET    /tasks/:id      - get task by id
  PUT    /tasks/:id      - update task (body = new title)
  DELETE /tasks/:id      - delete task

Task API reference server running on http://localhost:3000
Endpoints:
  POST   /tasks          - create task (body = title string)
  GET    /tasks/:id      - get task by id
  PUT    /tasks/:id      - update task (body = new title)
  DELETE /tasks/:id      - delete task
=== CREATE ===
{"result":"task_0"}
=== GET ===
{"result":"Buy groceries"}
=== UPDATE ===
{"result":"OK"}
=== GET UPDATED ===
{"result":"Buy organic groceries"}
=== DELETE ===
{"result":"OK"}
=== GET DELETED ===
{"result":"NOT_FOUND"}
=== GET NON-EXISTENT ===
{"result":"NOT_FOUND"}
=== CREATE SECOND ===
{"result":"task_1"}

[
  {
    "id": "0",
    "content": "Create .claude/context/ directory structure",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "1",
    "content": "Write .claude/context/capnweb-integration.md",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "2",
    "content": "Phase 0: Write examples/task-api.ts",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "3",
    "content": "Phase 0: Write examples/task-api-server.ts",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "4",
    "content": "Phase 1: Validate CloudLang parses task-api.ts (fix any parse failures)",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "5",
    "content": "Phase 2: Validate decomposition produces expected 2-group topology + add tests",
    "status": "in_progress",
    "priority": "high"
  },
  {
    "id": "6",
    "content": "Phase 3a: AST-to-TypeScript emitter (lib/emit.ml)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "7",
    "content": "Phase 3a: State access rewriting (lib/lower.ml)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "8",
    "content": "Phase 3a: Cross-service call rewriting",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "9",
    "content": "Phase 3a: Router generation",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "10",
    "content": "Phase 3a: Async propagation",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "11",
    "content": "Phase 4: Wrangler config generation (lib/wrangler.ml)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "12",
    "content": "Phase 5: Verification harness (verify/)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "13",
    "content": "Phase 6: OCaml test suite",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "14",
    "content": "Phase 3b (future): Replace JSON-over-fetch with Ca...

All 2 tools executed successfully.

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

/home/jm/data/ai/cloudlang/test/test_parse.ml
/home/jm/data/ai/cloudlang/test/test_cloudlang.ml
/home/jm/data/ai/cloudlang/test/test_durable_object_hints.ml
/home/jm/data/ai/cloudlang/test/test_generate.ml
/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/dune

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

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

All 2 tools executed successfully.

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

<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| 
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| 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...

Edit applied successfully.

Edit applied successfully.

Success

Error: A running dune (pid: 431324) instance has locked the build directory.
If this is not the case, please delete "_build/.lock".

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

All tests passed!

[
  {
    "id": "0",
    "content": "Create .claude/context/ directory structure",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "1",
    "content": "Write .claude/context/capnweb-integration.md",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "2",
    "content": "Phase 0: Write examples/task-api.ts",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "3",
    "content": "Phase 0: Write examples/task-api-server.ts",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "4",
    "content": "Phase 1: Validate CloudLang parses task-api.ts",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "5",
    "content": "Phase 2: Validate decomposition produces expected 2-group topology + add tests",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "6",
    "content": "Phase 3a: AST-to-TypeScript emitter (lib/emit.ml)",
    "status": "in_progress",
    "priority": "high"
  },
  {
    "id": "7",
    "content": "Phase 3a: State access rewriting (lib/lower.ml)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "8",
    "content": "Phase 3a: Cross-service call rewriting",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "9",
    "content": "Phase 3a: Router generation",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "10",
    "content": "Phase 3a: Async propagation",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "11",
    "content": "Phase 4: Wrangler config generation (lib/wrangler.ml)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "12",
    "content": "Phase 5: Verification harness (verify/)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "13",
    "content": "Phase 6: OCaml test suite",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "14",
    "content": "Phase 3b (future): Replace JSON-over-fetch with Cap'n Web RPC stubs",
   ...

All 3 tools executed successfully.

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

<file>
00001| (library
00002|  (name cloudlang)
00003|  (libraries jsont jsont.bytesrw unix))
00004| 

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

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

/home/jm/data/ai/cloudlang/lib/ast.mli
/home/jm/data/ai/cloudlang/lib/cloudlang.mli
/home/jm/data/ai/cloudlang/lib/subprocess.mli
/home/jm/data/ai/cloudlang/lib/parse.mli
/home/jm/data/ai/cloudlang/lib/decompose.mli
/home/jm/data/ai/cloudlang/lib/ir.mli
/home/jm/data/ai/cloudlang/lib/scope.mli
/home/jm/data/ai/cloudlang/lib/string_list.mli

task_id: ses_3cdc621fdffe2XNdPkdk6VS77z (for resuming to continue this task if needed)

<task_result>
I have successfully created both files:

## `lib/emit.mli`

```ocaml
(** AST to TypeScript source code emitter.

    This module converts the AST back to readable TypeScript source code,
    which is useful for debugging, pretty-printing, and code generation. *)

val emit_node : Ast.node -> string
(** [emit_node node] converts an AST node to TypeScript source code.

    The output is properly indented (2 spaces) and follows standard
    TypeScript formatting conventions. *)
```

## `lib/emit.ml`

```ocaml
(** AST to TypeScript source code emitter.

    This module converts the AST back to readable TypeScript source code,
    which is useful for debugging, pretty-printing, and code generation. *)

let indent = "  "

let indent_string (level : int) : string =
  String.make (level * String.length indent) ' '

let is_integer (f : float) : bool =
  f = floor f

let float_to_string (f : float) : string =
  if is_integer f then Printf.sprintf "%.0f" f else Printf.sprintf "%g" f

let emit_expression : Ast.node -> string =
  let rec emit expr =
    match expr with
    | Ast.Identifier { name } -> name
    | Ast.Literal { value } ->
        (match value with
        | Ast.LString s -> Printf.sprintf {|"%s"|} s
        | Ast.LNumber n -> float_to_string n
        | Ast.LBool b -> string_of_bool b
        | Ast.LNull -> "null"
        | Ast.LUndefined -> "undefined")
    | Ast.CallExpression { callee; arguments } ->
        Printf.sprintf "%s(%s)" (emit callee)
          (String.concat ", " (List.map emit arguments))
    | Ast.MemberExpression { object_; property } ->
        Printf.sprintf "%s.%s" (emit object_) (emit property)
    | Ast.BinaryExpression { operator; left; right } ->
        Printf.sprintf "%s %s %s" (emit left) operator (emit right)
    | Ast.LogicalExpression { operator; left; right } ->
        Printf.sprintf "%s %s %s" (emit left) operator (emit right)
    ...

All 2 tools executed successfully.

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

<file>
00001| (** AST to TypeScript source code emitter.
00002| 
00003|     This module converts the AST back to readable TypeScript source code,
00004|     which is useful for debugging, pretty-printing, and code generation. *)
00005| 
00006| let indent = "  "
00007| 
00008| let indent_string (level : int) : string =
00009|   String.make (level * String.length indent) ' '
00010| 
00011| let is_integer (f : float) : bool =
00012|   f = floor f
00013| 
00014| let float_to_string (f : float) : string =
00015|   if is_integer f then Printf.sprintf "%.0f" f else Printf.sprintf "%g" f
00016| 
00017| let emit_expression : Ast.node -> string =
00018|   let rec emit expr =
00019|     match expr with
00020|     | Ast.Identifier { name } -> name
00021|     | Ast.Literal { value } ->
00022|         (match value with
00023|         | Ast.LString s -> Printf.sprintf {|"%s"|} s
00024|         | Ast.LNumber n -> float_to_string n
00025|         | Ast.LBool b -> string_of_bool b
00026|         | Ast.LNull -> "null"
00027|         | Ast.LUndefined -> "undefined")
00028|     | Ast.CallExpression { callee; arguments } ->
00029|         Printf.sprintf "%s(%s)" (emit callee)
00030|           (String.concat ", " (List.map emit arguments))
00031|     | Ast.MemberExpression { object_; property } ->
00032|         Printf.sprintf "%s.%s" (emit object_) (emit property)
00033|     | Ast.BinaryExpression { operator; left; right } ->
00034|         Printf.sprintf "%s %s %s" (emit left) operator (emit right)
00035|     | Ast.LogicalExpression { operator; left; right } ->
00036|         Printf.sprintf "%s %s %s" (emit left) operator (emit right)
00037|     | Ast.NewExpression { callee; arguments } ->
00038|         Printf.sprintf "new %s(%s)" (emit callee)
00039|           (String.concat ", " (List.map emit arguments))
00040|     | Ast.ArrowFunctionExpression { params; body; async_ } ->
00041|         let params_str = String.concat ", " (List.map emit params) in
00042|         let async_str = if a...

<file>
00001| (** AST to TypeScript source code emitter.
00002| 
00003|     This module converts the AST back to readable TypeScript source code,
00004|     which is useful for debugging, pretty-printing, and code generation. *)
00005| 
00006| val emit_node : Ast.node -> string
00007| (** [emit_node node] converts an AST node to TypeScript source code.
00008| 
00009|     The output is properly indented (2 spaces) and follows standard
00010|     TypeScript formatting conventions. *)
00011| 

(End of file - total 11 lines)
</file>

<file>
00001| (** AST to TypeScript source code emitter.
00002| 
00003|     This module converts the AST back to readable TypeScript source code,
00004|     which is useful for debugging, pretty-printing, and code generation. *)
00005| 
00006| let indent = "  "
00007| 
00008| let indent_string (level : int) : string =
00009|   String.make (level * String.length indent) ' '
00010| 
00011| let is_integer (f : float) : bool =
00012|   f = floor f
00013| 
00014| let float_to_string (f : float) : string =
00015|   if is_integer f then Printf.sprintf "%.0f" f else Printf.sprintf "%g" f
00016| 
00017| let emit_expression : Ast.node -> string =
00018|   let rec emit expr =
00019|     match expr with
00020|     | Ast.Identifier { name } -> name
00021|     | Ast.Literal { value } ->
00022|         (match value with
00023|         | Ast.LString s -> Printf.sprintf {|"%s"|} s
00024|         | Ast.LNumber n -> float_to_string n
00025|         | Ast.LBool b -> string_of_bool b
00026|         | Ast.LNull -> "null"
00027|         | Ast.LUndefined -> "undefined")
00028|     | Ast.CallExpression { callee; arguments } ->
00029|         Printf.sprintf "%s(%s)" (emit callee)
00030|           (String.concat ", " (List.map emit arguments))
00031|     | Ast.MemberExpression { object_; property } ->
00032|         Printf.sprintf "%s.%s" (emit object_) (emit property)
00033|     | Ast.BinaryExpression { operator; left; right } ->
00034|         Printf.sprintf "%s %s %s" (emit left) operator (emit right)
00035|     | Ast.LogicalExpression { operator; left; right } ->
00036|         Printf.sprintf "%s %s %s" (emit left) operator (emit right)
00037|     | Ast.NewExpression { callee; arguments } ->
00038|         Printf.sprintf "new %s(%s)" (emit callee)
00039|           (String.concat ", " (List.map emit arguments))
00040|     | Ast.ArrowFunctionExpression { params; body; async_ } ->
00041|         let params_str = String.concat ", " (List.map emit params) in
00042|         let async_str = if a...

<file>
00001| (** AST to TypeScript source code emitter.
00002| 
00003|     This module converts the AST back to readable TypeScript source code,
00004|     which is useful for debugging, pretty-printing, and code generation. *)
00005| 
00006| val emit_node : Ast.node -> string
00007| (** [emit_node node] converts an AST node to TypeScript source code.
00008| 
00009|     The output is properly indented (2 spaces) and follows standard
00010|     TypeScript formatting conventions. *)
00011| 

(End of file - total 11 lines)
</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
  task API decomposition: OK

All tests passed!

[
  {
    "id": "0",
    "content": "Create .claude/context/ directory structure",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "1",
    "content": "Write .claude/context/capnweb-integration.md",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "2",
    "content": "Phase 0: Write examples/task-api.ts",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "3",
    "content": "Phase 0: Write examples/task-api-server.ts",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "4",
    "content": "Phase 1: Validate CloudLang parses task-api.ts",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "5",
    "content": "Phase 2: Validate decomposition produces expected 2-group topology + add tests",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "6",
    "content": "Phase 3a: AST-to-TypeScript emitter (lib/emit.ml)",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "7",
    "content": "Phase 3a: Body lowering — state rewriting + cross-service calls + router + async (lib/lower.ml)",
    "status": "in_progress",
    "priority": "high"
  },
  {
    "id": "8",
    "content": "Phase 3a: Integrate lower.ml into decompose.ml codegen pipeline",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "9",
    "content": "Phase 4: Wrangler config generation (lib/wrangler.ml)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "10",
    "content": "Phase 5: Verification harness (verify/)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "11",
    "content": "Phase 6: OCaml test suite for emit + lower",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "12",
    "content": "Phase 3b (future): Replace JSON-over-fetch with Cap'n Web RPC stubs",
    "status": "pending",
    "priority": "low"
  }
]

File "lib/lower.ml", line 274, characters 22-54:
274 |                 match Decompose.find_group_of_function
                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Error: Unbound value Decompose.find_group_of_function

<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>

Edit applied successfully.

<file>
00241|             _;
00242|           } ->
00243|           Some (name, params, body)
00244|       | _ -> None)
00245|     body
00246| 
00247| (** Generate a complete Worker script for a group.
00248| 
00249|     Takes the group information, the analysis result, and the program body,
00250|     and produces a full TypeScript Worker script with:
00251|     - Env interface declaration
00252|     - Async handler functions with rewritten bodies
00253|     - A fetch router that dispatches by pathname *)
00254| let generate_worker_script (group : Decompose.worker_group)
00255|     (analysis : Scope.analysis_result) (program_body : Ast.node list) :
00256|     string =
00257|   let all_functions = extract_functions program_body in
00258|   (* Build rewriting context *)
00259|   let service_call_targets =
00260|     (* For each function in this group, find which of its called_functions
00261|        are in other groups (i.e. are service deps). *)
00262|     let closures = analysis.closures in
00263|     List.concat_map
00264|       (fun fn_name ->
00265|         match
00266|           List.find_opt
00267|             (fun (c : Scope.closure_info) -> c.name = fn_name)
00268|             closures
00269|         with
00270|         | None -> []
00271|         | Some closure ->
00272|             List.filter_map
00273|               (fun called ->
00274|                 match Decompose.find_group_of_function
00275|                         (Decompose.decompose analysis) called with
00276|                 | Some target when target <> group.name ->
00277|                     Some (called, target)
00278|                 | _ -> None)
00279|               closure.called_functions)
00280|       group.functions
00281|   in
00282|   let ctx =
00283|     {
00284|       owned_state = group.owned_state;
00285|       service_deps =
00286|         String_list.dedup_preserve_order
00287|           (List.map fst service_call_targets)
00288|         |> List.map (fun fn ->
00289|         ...

Edit applied successfully.

<file>
00001| (** Body lowering: rewrite function bodies for distributed execution.
00002| 
00003|     Transforms AST function bodies so that:
00004|     1. Map.get/set/delete/has on captured mutable state become KV API calls
00005|     2. Cross-group function calls become JSON-over-fetch to service bindings
00006|     3. All affected functions become async with env parameter
00007|     4. A fetch router dispatches incoming requests to handler functions *)
00008| 
00009| type rewrite_ctx = {
00010|   owned_state : string list;
00011|   service_deps : (string * string) list;
00012| }
00013| 
00014| val rewrite_node : rewrite_ctx -> Ast.node -> Ast.node
00015| (** [rewrite_node ctx node] rewrites Map calls to KV calls and
00016|     cross-group function calls to service fetch calls. *)
00017| 
00018| val extract_functions :
00019|   Ast.node list -> (string * Ast.node list * Ast.node) list
00020| (** [extract_functions body] extracts arrow function declarations
00021|     from a program body as (name, params, body) triples. *)
00022| 
00023| val generate_worker_script :
00024|   Decompose.worker_group ->
00025|   Scope.analysis_result ->
00026|   Ast.node list ->
00027|   string
00028| (** [generate_worker_script group analysis program_body] generates a
00029|     complete TypeScript Worker script for the given group, with rewritten
00030|     function bodies, Env interface, and fetch router. *)
00031| 

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

Edit applied successfully.

<file>
00001| (** AST to TypeScript source code emitter.
00002| 
00003|     This module converts the AST back to readable TypeScript source code,
00004|     which is useful for debugging, pretty-printing, and code generation. *)
00005| 
00006| val emit_node : Ast.node -> string
00007| (** [emit_node node] converts an AST node to TypeScript source code.
00008| 
00009|     The output is properly indented (2 spaces) and follows standard
00010|     TypeScript formatting conventions. *)
00011| 

(End of file - total 11 lines)
</file>

Edit applied successfully.

<file>
00001| module Ast = Ast
00002| module Ir = Ir
00003| module Scope = Scope
00004| module Decompose = Decompose
00005| module Parse = Parse
00006| module Subprocess = Subprocess
00007| 
00008| type error = string
00009| 
00010| (** Parse a TypeScript file into an AST.
00011| 
00012|     Runs the typescript-estree bridge via bun subprocess. *)
00013| let parse_file ?(tools_dir = "tools") (filepath : string) :
00014|     (Ast.node, error) result =
00015|   match Subprocess.run_bridge ~tools_dir filepath with
00016|   | Error e -> Error (Printf.sprintf "parse error: %s" e)
00017|   | Ok json -> (
00018|       match Parse.decode json with
00019|       | Error e -> Error (Printf.sprintf "parse error: %s" e)
00020|       | Ok node -> Ok node)
00021| 
00022| (** Analyse a TypeScript AST and decompose it into Worker groups. *)
00023| let analyze (program : Ast.node) : (Scope.analysis_result, error) result =
00024|   Scope.analyze program
00025|   |> Result.map_error (fun err ->
00026|       Printf.sprintf "analysis error: %s" (Scope.error_to_string err))
00027| 
00028| (** Decompose analysis results into Worker groups and convert to IR. *)
00029| let compile (analysis : Scope.analysis_result) : (Ir.config, error) result =
00030|   let groups = Decompose.decompose analysis in
00031|   Ok (Decompose.to_ir groups analysis)
00032| 
00033| (* --- Code generation: IR -> output string --- *)
00034| 
00035| (** Generate a JSON-style wrangler configuration for a binding. *)
00036| let generate_binding_json (b : Ir.binding) : string =
00037|   match b with
00038|   | Ir.D1Binding { name; database_id } ->
00039|       Printf.sprintf {|    { "binding": "%s", "database_id": "%s" }|} name
00040|         database_id
00041|   | Ir.KVBinding { name; namespace_id } ->
00042|       Printf.sprintf {|    { "binding": "%s", "id": "%s" }|} name namespace_id
00043|   | Ir.R2Binding { name; bucket_name } ->
00044|       Printf.sprintf {|    { "binding": "%s", "bucket_name": "%s" }|} name
00045...

Edit applied successfully.

Edit applied successfully.

<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>

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."
00006|   else
00007|     let filename = Sys.argv.(1) in
00008|     match Cloudlang.parse_file filename with
00009|     | Error e -> Printf.eprintf "Error: %s\n" e
00010|     | Ok ast -> (
00011|         match Cloudlang.analyze ast with
00012|         | Error e -> Printf.eprintf "Error: %s\n" e
00013|         | Ok analysis -> (
00014|             match Cloudlang.compile analysis with
00015|             | Error e -> Printf.eprintf "Error: %s\n" e
00016|             | Ok config ->
00017|                 let output = Cloudlang.generate config in
00018|                 print_endline output))
00019| 

(End of file - total 19 lines)
</file>

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--- Worker: tasks_nextId ---
== wrangler.toml ==
{
  "name": "tasks_nextId",
  "kv_namespaces": [
    { "binding": "TASKS", "id": "cloudlang-tasks" },
    { "binding": "NEXTID", "id": "cloudlang-nextId" }
  ],
  "durable_object_hint": {
    "binding_name": "TASKS_NEXTID_DO",
    "class_name": "TasksNextIdCoordinatorDO",
    "fit_score": 70,
    "intent": "per_entity_serial",
    "routing": "deterministic_name",
    "storage": "sqlite",
    "alarm_mode": "none",
    "pitr_required": true,
    "markers": ["serial_conflict_hotspot", "strict_ordering_required", "entity_affinity_keyed", "global_singleton_needed"],
    "reasons": ["Multiple requests may contend on shared mutable state.", "Operation order is important for correctness.", "Deterministic entity affinity is available (key hint: tasks_nextId_id).", "Group behaves like a single logical coordinator."]
  }
}

== script ==
interface Env {
  TASKS: KVNamespace;
  NEXTID: KVNamespace;
}

async function createTask(env: Env, title: string): Promise<string | null> {
  const raw = env.NEXTID.get("counter");
  const n = raw ?? "0";
  const id = "task_" + n;
  const next = String(Number(n) + 1);
  env.NEXTID.put("counter", next);
  env.TASKS.put(id, title);
  return id;
}

async function getTask(env: Env, id: string): Promise<string | null> {
  return env.TASKS.get(id);
}

async function updateTask(env: Env, id: string, title: string): Promise<string | null> {
  const existing = env.TASKS.get(id);
  if (existing) {
    env.TASKS.put(id, title);
    return "OK";
  }
  return "NOT_FOUND";
}

async function deleteTask(env: Env, id: string): Promise<string | null> {
  const existed = env.TASKS.get(id);
  if (existed) {
    env.TASKS.delete(id);
    return "OK";
  }
  return "NOT_FOUND";
}

export default {
  async fetch(request: Request, env: Env): Promise<Response> {
    const url = new URL(request.url);
    const body = await request.text();
    let args: string[] = [];
    try { args = JSON.parse(body || "[]"); } catch (_) ...

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<file>
00029|       {
00030|         object_ =
00031|           Ast.MemberExpression
00032|             {
00033|               object_ = Ast.Identifier { name = "env" };
00034|               property = Ast.Identifier { name = binding };
00035|             };
00036|         property = Ast.Identifier { name = prop };
00037|       }
00038|   in
00039|   match (method_name, args) with
00040|   | "get", [ key ] ->
00041|       (* await env.STORE.get(key) *)
00042|       Some (Ast.CallExpression { callee = env_member "get"; arguments = [ key ] })
00043|   | "set", [ key; value ] ->
00044|       (* await env.STORE.put(key, value) *)
00045|       Some
00046|         (Ast.CallExpression
00047|            { callee = env_member "put"; arguments = [ key; value ] })
00048|   | "delete", [ key ] ->
00049|       (* await env.STORE.delete(key) *)
00050|       Some
00051|         (Ast.CallExpression
00052|            { callee = env_member "delete"; arguments = [ key ] })
00053|   | _ -> None
00054| 
00055| (** Rewrite a cross-group function call to a fetch-based RPC call.
00056| 
00057|     getTask(id)  ->
00058|       JSON.parse(await (await env.TASKS_NEXTID.fetch(
00059|         "http://internal/getTask",
00060|         { method: "POST", body: JSON.stringify({ arg0: id }) }
00061|       )).text()) *)
00062| let rewrite_service_call (fn_name : string) (target_group : string)
00063|     (args : Ast.node list) : Ast.node =
00064|   let binding = String.uppercase_ascii target_group in
00065|   (* Build the argument object: { arg0: x, arg1: y, ... } *)
00066|   let _arg_pairs =
00067|     List.mapi (fun i _arg -> Printf.sprintf "arg%d" i) args
00068|   in
00069|   (* We emit this as raw TypeScript via a special marker that the script
00070|      generator will expand. For now we produce a simplified version:
00071|      await (await env.BINDING.fetch("http://internal/fnName",
00072|        { method: "POST", body: JSON.stringify([arg0, arg1, ...]) }
00073|      )).json() *)
00074|   let...

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

All tests passed!

--- Worker: tasks_nextId ---
== wrangler.toml ==
{
  "name": "tasks_nextId",
  "kv_namespaces": [
    { "binding": "TASKS", "id": "cloudlang-tasks" },
    { "binding": "NEXTID", "id": "cloudlang-nextId" }
  ],
  "durable_object_hint": {
    "binding_name": "TASKS_NEXTID_DO",
    "class_name": "TasksNextIdCoordinatorDO",
    "fit_score": 70,
    "intent": "per_entity_serial",
    "routing": "deterministic_name",
    "storage": "sqlite",
    "alarm_mode": "none",
    "pitr_required": true,
    "markers": ["serial_conflict_hotspot", "strict_ordering_required", "entity_affinity_keyed", "global_singleton_needed"],
    "reasons": ["Multiple requests may contend on shared mutable state.", "Operation order is important for correctness.", "Deterministic entity affinity is available (key hint: tasks_nextId_id).", "Group behaves like a single logical coordinator."]
  }
}

== script ==
interface Env {
  TASKS: KVNamespace;
  NEXTID: KVNamespace;
}

async function createTask(env: Env, title: string): Promise<string | null> {
  const raw = await env.NEXTID.get("counter");
  const n = raw ?? "0";
  const id = "task_" + n;
  const next = String(Number(n) + 1);
  await env.NEXTID.put("counter", next);
  await env.TASKS.put(id, title);
  return id;
}

async function getTask(env: Env, id: string): Promise<string | null> {
  return await env.TASKS.get(id);
}

async function updateTask(env: Env, id: string, title: string): Promise<string | null> {
  const existing = await env.TASKS.get(id);
  if (existing) {
    await env.TASKS.put(id, title);
    return "OK";
  }
  return "NOT_FOUND";
}

async function deleteTask(env: Env, id: string): Promise<string | null> {
  const existed = await env.TASKS.get(id);
  if (existed) {
    await env.TASKS.delete(id);
    return "OK";
  }
  return "NOT_FOUND";
}

export default {
  async fetch(request: Request, env: Env): Promise<Response> {
    const url = new URL(request.url);
    const body = await request.text();
    let args: string[] = [];
    try...

[
  {
    "id": "0",
    "content": "Create .claude/context/ directory structure",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "1",
    "content": "Write .claude/context/capnweb-integration.md",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "2",
    "content": "Phase 0: Write examples/task-api.ts",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "3",
    "content": "Phase 0: Write examples/task-api-server.ts",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "4",
    "content": "Phase 1: Validate CloudLang parses task-api.ts",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "5",
    "content": "Phase 2: Validate decomposition produces expected 2-group topology + add tests",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "6",
    "content": "Phase 3a: AST-to-TypeScript emitter (lib/emit.ml)",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "7",
    "content": "Phase 3a: Body lowering (lib/lower.ml) — state rewriting + cross-service calls + router + async",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "8",
    "content": "Phase 3a: Integrate lower.ml into main pipeline (compile_lowered + --lower flag)",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "9",
    "content": "Phase 4: Wrangler TOML generation (lib/wrangler.ml)",
    "status": "in_progress",
    "priority": "high"
  },
  {
    "id": "10",
    "content": "Phase 5: Verification harness (verify/)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "11",
    "content": "Phase 6: OCaml test suite for emit + lower",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "12",
    "content": "Phase 3b (future): Replace JSON-over-fetch with Cap'n Web RPC stubs",
    "status": "pending",
    "priority": "low"
  }
]

Edit applied successfully.

  wrote out/tasks_nextId/
  wrote out/handleRequest/
Emitted 2 Workers to out/

[
  {
    "id": "0",
    "content": "Create .claude/context/ directory structure",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "1",
    "content": "Write .claude/context/capnweb-integration.md",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "2",
    "content": "Phase 0: Write examples/task-api.ts",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "3",
    "content": "Phase 0: Write examples/task-api-server.ts",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "4",
    "content": "Phase 1: Validate CloudLang parses task-api.ts",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "5",
    "content": "Phase 2: Validate decomposition produces expected 2-group topology + add tests",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "6",
    "content": "Phase 3a: AST-to-TypeScript emitter (lib/emit.ml)",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "7",
    "content": "Phase 3a: Body lowering (lib/lower.ml)",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "8",
    "content": "Phase 3a: Integrate lower.ml into main pipeline",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "9",
    "content": "Phase 4: Wrangler TOML generation (lib/wrangler.ml) + --emit-project CLI",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "10",
    "content": "Phase 5: Verification harness (verify/) — Miniflare + Node.js dual-target test runner",
    "status": "in_progress",
    "priority": "high"
  },
  {
    "id": "11",
    "content": "Phase 6: OCaml test suite for emit + lower",
    "status": "pending",
    "priority": "medium"
  },
  {
    "id": "12",
    "content": "Phase 3b (future): Replace JSON-over-fetch with Cap'n Web RPC stubs",
    "status": "pending",
    "priority": "low"
  }
]

<file>
00070|       },
00071|     ],
00072|   },
00073|   {
00074|     name: "sequential IDs",
00075|     steps: [
00076|       {
00077|         method: "POST",
00078|         path: "/tasks",
00079|         body: "Task A",
00080|         expectStatus: 200,
00081|         expectResult: "task_0",
00082|         description: "first task gets id task_0",
00083|       },
00084|       {
00085|         method: "POST",
00086|         path: "/tasks",
00087|         body: "Task B",
00088|         expectStatus: 200,
00089|         expectResult: "task_1",
00090|         description: "second task gets id task_1",
00091|       },
00092|       {
00093|         method: "POST",
00094|         path: "/tasks",
00095|         body: "Task C",
00096|         expectStatus: 200,
00097|         expectResult: "task_2",
00098|         description: "third task gets id task_2",
00099|       },

(File has more lines. Use 'offset' parameter to read beyond line 99)
</file>

Running CloudLang tests...
  scope analysis: OK
  decomposition: OK
  IR output: OK
  durable object hints: OK
  generated output: OK
  parse integration: OK
  task API decomposition: OK
  AST emitter: OK
  body lowering: OK

All tests passed!

[
  {
    "id": "0",
    "content": "Phases 0-6: All complete",
    "status": "completed",
    "priority": "high"
  },
  {
    "id": "10",
    "content": "Set up Miniflare in verify/ (install wrangler, configure multi-worker)",
    "status": "in_progress",
    "priority": "high"
  },
  {
    "id": "11",
    "content": "Fix generated Worker scripts for Miniflare compatibility",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "12",
    "content": "Add Miniflare target to verification harness",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "13",
    "content": "Run dual-target equivalence test (ref vs Miniflare)",
    "status": "pending",
    "priority": "high"
  },
  {
    "id": "14",
    "content": "Phase 3b (future): Replace JSON-over-fetch with Cap'n Web RPC stubs",
    "status": "pending",
    "priority": "low"
  }
]

All 4 tools executed successfully.

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

<file>
00001| interface Env {
00002|   TASKS: KVNamespace;
00003|   NEXTID: KVNamespace;
00004| }
00005| 
00006| async function createTask(env: Env, title: string): Promise<string | null> {
00007|   const raw = await env.NEXTID.get("counter");
00008|   const n = raw ?? "0";
00009|   const id = "task_" + n;
00010|   const next = String(Number(n) + 1);
00011|   await env.NEXTID.put("counter", next);
00012|   await env.TASKS.put(id, title);
00013|   return id;
00014| }
00015| 
00016| async function getTask(env: Env, id: string): Promise<string | null> {
00017|   return await env.TASKS.get(id);
00018| }
00019| 
00020| async function updateTask(env: Env, id: string, title: string): Promise<string | null> {
00021|   const existing = await env.TASKS.get(id);
00022|   if (existing) {
00023|     await env.TASKS.put(id, title);
00024|     return "OK";
00025|   }
00026|   return "NOT_FOUND";
00027| }
00028| 
00029| async function deleteTask(env: Env, id: string): Promise<string | null> {
00030|   const existed = await env.TASKS.get(id);
00031|   if (existed) {
00032|     await env.TASKS.delete(id);
00033|     return "OK";
00034|   }
00035|   return "NOT_FOUND";
00036| }
00037| 
00038| export default {
00039|   async fetch(request: Request, env: Env): Promise<Response> {
00040|     const url = new URL(request.url);
00041|     const body = await request.text();
00042|     let args: string[] = [];
00043|     try { args = JSON.parse(body || "[]"); } catch (_) {}
00044| 
00045|     if (url.pathname === "/createTask") {
00046|       const result = await createTask(env, args[0]);
00047|       return new Response(JSON.stringify(result), { headers: { "Content-Type": "application/json" } });
00048|     }
00049|     if (url.pathname === "/getTask") {
00050|       const result = await getTask(env, args[0]);
00051|       return new Response(JSON.stringify(result), { headers: { "Content-Type": "application/json" } });
00052|     }
00053|     if (url.pathname === "/updateTask") {
00054|     ...

<file>
00001| interface Env {
00002|   TASKS_NEXTID: Fetcher;
00003| }
00004| 
00005| async function handleRequest(env: Env, method: string, path: string, body: string): Promise<string | null> {
00006|   if (method === "POST") {
00007|     return await (await env.TASKS_NEXTID.fetch("http://internal/createTask", { method: "POST", body: JSON.stringify([body]) })).json();
00008|   }
00009|   if (method === "GET") {
00010|     const result = await (await env.TASKS_NEXTID.fetch("http://internal/getTask", { method: "POST", body: JSON.stringify([path]) })).json();
00011|     return result ?? "NOT_FOUND";
00012|   }
00013|   if (method === "PUT") {
00014|     return await (await env.TASKS_NEXTID.fetch("http://internal/updateTask", { method: "POST", body: JSON.stringify([path, body]) })).json();
00015|   }
00016|   if (method === "DELETE") {
00017|     return await (await env.TASKS_NEXTID.fetch("http://internal/deleteTask", { method: "POST", body: JSON.stringify([path]) })).json();
00018|   }
00019|   return "BAD_REQUEST";
00020| }
00021| 
00022| export default {
00023|   async fetch(request: Request, env: Env): Promise<Response> {
00024|     const url = new URL(request.url);
00025|     const body = await request.text();
00026|     let args: string[] = [];
00027|     try { args = JSON.parse(body || "[]"); } catch (_) {}
00028| 
00029|     if (url.pathname === "/handleRequest") {
00030|       const result = await handleRequest(env, args[0], args[1], args[2]);
00031|       return new Response(JSON.stringify(result), { headers: { "Content-Type": "application/json" } });
00032|     }
00033|     return new Response("Not Found", { status: 404 });
00034|   }
00035| };
00036| 

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

<file>
00001| name = "tasks_nextId"
00002| main = "index.ts"
00003| compatibility_date = "2024-01-01"
00004| 
00005| [[kv_namespaces]]
00006| binding = "TASKS"
00007| id = "cloudlang-tasks"
00008| 
00009| [[kv_namespaces]]
00010| binding = "NEXTID"
00011| id = "cloudlang-nextId"
00012| 
00013| 

(End of file - total 13 lines)
</file>

<file>
00001| name = "handleRequest"
00002| main = "index.ts"
00003| compatibility_date = "2024-01-01"
00004| 
00005| [[services]]
00006| binding = "TASKS_NEXTID"
00007| service = "tasks_nextId"
00008| 
00009| 
00010| routes = [
00011|   { pattern = "/handleRequest", zone_name = "" },
00012| ]
00013| 

(End of file - total 13 lines)
</file>

All 7 tools executed successfully.

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

/home/jm/data/ai/cloudlang/out/handleRequest/index.ts
/home/jm/data/ai/cloudlang/out/handleRequest/wrangler.toml
/home/jm/data/ai/cloudlang/out/tasks_nextId/index.ts
/home/jm/data/ai/cloudlang/out/tasks_nextId/wrangler.toml

/home/jm/data/ai/cloudlang/lib/lower.ml

/home/jm/data/ai/cloudlang/lib/emit.ml

<file>
00001| (** Body lowering: rewrite function bodies for distributed execution.
00002| 
00003|     Transforms AST function bodies so that:
00004|     1. Map.get/set/delete/has on captured mutable state become KV API calls
00005|     2. Cross-group function calls become JSON-over-fetch to service bindings
00006|     3. All affected functions become async with env parameter
00007|     4. A fetch router dispatches incoming requests to handler functions *)
00008| 
00009| (** Rewriting context for a single function within a Worker group. *)
00010| type rewrite_ctx = {
00011|   owned_state : string list;
00012|       (** Mutable state variables owned by this group (Map -> KV). *)
00013|   service_deps : (string * string) list;
00014|       (** (function_name, target_group) pairs for cross-group calls. *)
00015| }
00016| 
00017| (** Rewrite a Map method call on a captured mutable state variable to a
00018|     KV API call.
00019| 
00020|     store.get(key)          -> await env.STORE.get(key)
00021|     store.set(key, value)   -> await env.STORE.put(key, value)
00022|     store.delete(key)       -> await env.STORE.delete(key)
00023|     store.has(key)          -> (await env.STORE.get(key)) !== null *)
00024| let rewrite_map_call (var_name : string) (method_name : string)
00025|     (args : Ast.node list) : Ast.node option =
00026|   let binding = String.uppercase_ascii var_name in
00027|   let env_member prop =
00028|     Ast.MemberExpression
00029|       {
00030|         object_ =
00031|           Ast.MemberExpression
00032|             {
00033|               object_ = Ast.Identifier { name = "env" };
00034|               property = Ast.Identifier { name = binding };
00035|             };
00036|         property = Ast.Identifier { name = prop };
00037|       }
00038|   in
00039|   let await_call prop arguments =
00040|     Ast.AwaitExpression
00041|       {
00042|         argument =
00043|           Ast.CallExpression { callee = env_member prop; arguments };
00044|   ...

<file>
00001| (** Body lowering: rewrite function bodies for distributed execution.
00002| 
00003|     Transforms AST function bodies so that:
00004|     1. Map.get/set/delete/has on captured mutable state become KV API calls
00005|     2. Cross-group function calls become JSON-over-fetch to service bindings
00006|     3. All affected functions become async with env parameter
00007|     4. A fetch router dispatches incoming requests to handler functions *)
00008| 
00009| type rewrite_ctx = {
00010|   owned_state : string list;
00011|   service_deps : (string * string) list;
00012| }
00013| 
00014| val rewrite_node : rewrite_ctx -> Ast.node -> Ast.node
00015| (** [rewrite_node ctx node] rewrites Map calls to KV calls and
00016|     cross-group function calls to service fetch calls. *)
00017| 
00018| val extract_functions :
00019|   Ast.node list -> (string * Ast.node list * Ast.node) list
00020| (** [extract_functions body] extracts arrow function declarations
00021|     from a program body as (name, params, body) triples. *)
00022| 
00023| val generate_worker_script :
00024|   Decompose.worker_group ->
00025|   Decompose.worker_group list ->
00026|   Scope.analysis_result ->
00027|   Ast.node list ->
00028|   string
00029| (** [generate_worker_script group all_groups analysis program_body]
00030|     generates a complete TypeScript Worker script for the given group,
00031|     with rewritten function bodies, Env interface, and fetch router. *)
00032| 

(End of file - total 32 lines)
</file>

<file>
00001| (** AST to TypeScript source code emitter.
00002| 
00003|     Converts ESTree AST nodes back to readable TypeScript source code.
00004|     Used by the body lowering pass to emit rewritten function bodies
00005|     into generated Worker scripts. *)
00006| 
00007| let indent_str (level : int) : string = String.make (level * 2) ' '
00008| 
00009| let format_float (f : float) : string =
00010|   if f = Float.round f then Printf.sprintf "%.0f" f
00011|   else Printf.sprintf "%g" f
00012| 
00013| (** Emit an expression node as inline TypeScript (no leading indent). *)
00014| let rec emit_expr (node : Ast.node) : string =
00015|   match node with
00016|   | Ast.Identifier { name } -> name
00017|   | Ast.Literal { value } -> (
00018|       match value with
00019|       | Ast.LString s -> Printf.sprintf {|"%s"|} s
00020|       | Ast.LNumber n -> format_float n
00021|       | Ast.LBool b -> string_of_bool b
00022|       | Ast.LNull -> "null"
00023|       | Ast.LUndefined -> "undefined")
00024|   | Ast.CallExpression { callee; arguments } ->
00025|       Printf.sprintf "%s(%s)" (emit_expr callee)
00026|         (String.concat ", " (List.map emit_expr arguments))
00027|   | Ast.MemberExpression { object_; property } ->
00028|       Printf.sprintf "%s.%s" (emit_expr object_) (emit_expr property)
00029|   | Ast.BinaryExpression { operator; left; right } ->
00030|       Printf.sprintf "%s %s %s" (emit_expr left) operator (emit_expr right)
00031|   | Ast.LogicalExpression { operator; left; right } ->
00032|       Printf.sprintf "%s %s %s" (emit_expr left) operator (emit_expr right)
00033|   | Ast.NewExpression { callee; arguments } ->
00034|       Printf.sprintf "new %s(%s)" (emit_expr callee)
00035|         (String.concat ", " (List.map emit_expr arguments))
00036|   | Ast.ArrowFunctionExpression { params; body; async_ } ->
00037|       let params_str =
00038|         Printf.sprintf "(%s)" (String.concat ", " (List.map emit_expr params))
00039|       in
00040|     ...

<file>
00001| (** AST to TypeScript source code emitter.
00002| 
00003|     This module converts the AST back to readable TypeScript source code,
00004|     which is useful for debugging, pretty-printing, and code generation. *)
00005| 
00006| val emit_expr : Ast.node -> string
00007| (** [emit_expr node] emits an expression node as inline TypeScript
00008|     (no leading indentation). Also handles block statements and
00009|     other compound nodes. *)
00010| 
00011| val emit_stmt : int -> Ast.node -> string
00012| (** [emit_stmt level node] emits a statement node with leading
00013|     indentation at the given level (2 spaces per level). *)
00014| 
00015| val emit_node : Ast.node -> string
00016| (** [emit_node node] converts an AST node to TypeScript source code
00017|     at the top level (indentation level 0).
00018| 
00019|     The output is properly indented (2 spaces) and follows standard
00020|     TypeScript formatting conventions. *)
00021| 

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

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<file>
00001| interface Env {
00002|   TASKS_NEXTID: Fetcher;
00003| }
00004| 
00005| async function handleRequest(env: Env, method: string, path: string, body: string): Promise<string | null> {
00006|   if (method === "POST") {
00007|     return await (await env.TASKS_NEXTID.fetch("http://internal/createTask", { method: "POST", body: JSON.stringify([body]) })).json();
00008|   }
00009|   if (method === "GET") {
00010|     const result = await (await env.TASKS_NEXTID.fetch("http://internal/getTask", { method: "POST", body: JSON.stringify([path]) })).json();
00011|     return result ?? "NOT_FOUND";
00012|   }
00013|   if (method === "PUT") {
00014|     return await (await env.TASKS_NEXTID.fetch("http://internal/updateTask", { method: "POST", body: JSON.stringify([path, body]) })).json();
00015|   }
00016|   if (method === "DELETE") {
00017|     return await (await env.TASKS_NEXTID.fetch("http://internal/deleteTask", { method: "POST", body: JSON.stringify([path]) })).json();
00018|   }
00019|   return "BAD_REQUEST";
00020| }
00021| 
00022| export default {
00023|   async fetch(request: Request, env: Env): Promise<Response> {
00024|     const url = new URL(request.url);
00025|     const body = await request.text();
00026|     let args: string[] = [];
00027|     try { args = JSON.parse(body || "[]"); } catch (_) {}
00028| 
00029|     if (url.pathname === "/handleRequest") {
00030|       const result = await handleRequest(env, args[0], args[1], args[2]);
00031|       return new Response(JSON.stringify(result), { headers: { "Content-Type": "application/json" } });
00032|     }
00033|     return new Response("Not Found", { status: 404 });
00034|   }
00035| };
00036| 

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

<file>
00001| interface Env {
00002|   TASKS: KVNamespace;
00003|   NEXTID: KVNamespace;
00004| }
00005| 
00006| async function createTask(env: Env, title: string): Promise<string | null> {
00007|   const raw = await env.NEXTID.get("counter");
00008|   const n = raw ?? "0";
00009|   const id = "task_" + n;
00010|   const next = String(Number(n) + 1);
00011|   await env.NEXTID.put("counter", next);
00012|   await env.TASKS.put(id, title);
00013|   return id;
00014| }
00015| 
00016| async function getTask(env: Env, id: string): Promise<string | null> {
00017|   return await env.TASKS.get(id);
00018| }
00019| 
00020| async function updateTask(env: Env, id: string, title: string): Promise<string | null> {
00021|   const existing = await env.TASKS.get(id);
00022|   if (existing) {
00023|     await env.TASKS.put(id, title);
00024|     return "OK";
00025|   }
00026|   return "NOT_FOUND";
00027| }
00028| 
00029| async function deleteTask(env: Env, id: string): Promise<string | null> {
00030|   const existed = await env.TASKS.get(id);
00031|   if (existed) {
00032|     await env.TASKS.delete(id);
00033|     return "OK";
00034|   }
00035|   return "NOT_FOUND";
00036| }
00037| 
00038| export default {
00039|   async fetch(request: Request, env: Env): Promise<Response> {
00040|     const url = new URL(request.url);
00041|     const body = await request.text();
00042|     let args: string[] = [];
00043|     try { args = JSON.parse(body || "[]"); } catch (_) {}
00044| 
00045|     if (url.pathname === "/createTask") {
00046|       const result = await createTask(env, args[0]);
00047|       return new Response(JSON.stringify(result), { headers: { "Content-Type": "application/json" } });
00048|     }
00049|     if (url.pathname === "/getTask") {
00050|       const result = await getTask(env, args[0]);
00051|       return new Response(JSON.stringify(result), { headers: { "Content-Type": "application/json" } });
00052|     }
00053|     if (url.pathname === "/updateTask") {
00054|     ...

<file>
00001| name = "handleRequest"
00002| main = "index.ts"
00003| compatibility_date = "2024-01-01"
00004| 
00005| [[services]]
00006| binding = "TASKS_NEXTID"
00007| service = "tasks_nextId"
00008| 
00009| 
00010| routes = [
00011|   { pattern = "/handleRequest", zone_name = "" },
00012| ]
00013| 

(End of file - total 13 lines)
</file>

<file>
00001| name = "tasks_nextId"
00002| main = "index.ts"
00003| compatibility_date = "2024-01-01"
00004| 
00005| [[kv_namespaces]]
00006| binding = "TASKS"
00007| id = "cloudlang-tasks"
00008| 
00009| [[kv_namespaces]]
00010| binding = "NEXTID"
00011| id = "cloudlang-nextId"
00012| 
00013| 

(End of file - total 13 lines)
</file>

<file>
00001| // examples/task-api.ts
00002| //
00003| // A minimal CRUD task API written as a normal TypeScript program.
00004| // No Cloudflare awareness — just arrow functions and Map state.
00005| //
00006| // CloudLang decomposes this into 2 Workers:
00007| //   1. "tasks" — createTask/getTask/updateTask/deleteTask, KV bindings
00008| //      for tasks + nextId stores
00009| //   2. "handleRequest" — routing layer, service binding to tasks worker
00010| //
00011| // Verification: this program must behave identically whether run directly
00012| // on Node.js/Bun or compiled and deployed as distributed Cloudflare Workers.
00013| 
00014| const tasks = new Map<string, string>();
00015| const nextId = new Map<string, string>();
00016| 
00017| const createTask = (title: string): string => {
00018|   const raw = nextId.get("counter");
00019|   const n = raw ?? "0";
00020|   const id = "task_" + n;
00021|   const next = String(Number(n) + 1);
00022|   nextId.set("counter", next);
00023|   tasks.set(id, title);
00024|   return id;
00025| };
00026| 
00027| const getTask = (id: string): string | undefined => {
00028|   return tasks.get(id);
00029| };
00030| 
00031| const updateTask = (id: string, title: string): string => {
00032|   const existing = tasks.get(id);
00033|   if (existing) {
00034|     tasks.set(id, title);
00035|     return "OK";
00036|   }
00037|   return "NOT_FOUND";
00038| };
00039| 
00040| const deleteTask = (id: string): string => {
00041|   const existed = tasks.get(id);
00042|   if (existed) {
00043|     tasks.delete(id);
00044|     return "OK";
00045|   }
00046|   return "NOT_FOUND";
00047| };
00048| 
00049| const handleRequest = (method: string, path: string, body: string): string => {
00050|   if (method === "POST") {
00051|     return createTask(body);
00052|   }
00053|   if (method === "GET") {
00054|     const result = getTask(path);
00055|     return result ?? "NOT_FOUND";
00056|   }
00057|   if (method === "PUT") {
00058|     return updateTas...

<file>
00001| // examples/task-api-server.ts
00002| //
00003| // Reference HTTP server that wraps the task-api.ts program.
00004| // Run with: bun run examples/task-api-server.ts
00005| //
00006| // The verification harness sends identical requests to this server
00007| // and to the Miniflare-hosted compiled Workers, asserting identical
00008| // responses from both.
00009| 
00010| // --- inline the task API logic (same as task-api.ts) ---
00011| 
00012| const tasks = new Map<string, string>();
00013| const nextId = new Map<string, string>();
00014| 
00015| const createTask = (title: string): string => {
00016|   const raw = nextId.get("counter");
00017|   const n = raw ?? "0";
00018|   const id = "task_" + n;
00019|   const next = String(Number(n) + 1);
00020|   nextId.set("counter", next);
00021|   tasks.set(id, title);
00022|   return id;
00023| };
00024| 
00025| const getTask = (id: string): string | undefined => {
00026|   return tasks.get(id);
00027| };
00028| 
00029| const updateTask = (id: string, title: string): string => {
00030|   const existing = tasks.get(id);
00031|   if (existing) {
00032|     tasks.set(id, title);
00033|     return "OK";
00034|   }
00035|   return "NOT_FOUND";
00036| };
00037| 
00038| const deleteTask = (id: string): string => {
00039|   const existed = tasks.get(id);
00040|   if (existed) {
00041|     tasks.delete(id);
00042|     return "OK";
00043|   }
00044|   return "NOT_FOUND";
00045| };
00046| 
00047| const handleRequest = (method: string, path: string, body: string): string => {
00048|   if (method === "POST") {
00049|     return createTask(body);
00050|   }
00051|   if (method === "GET") {
00052|     const result = getTask(path);
00053|     return result ?? "NOT_FOUND";
00054|   }
00055|   if (method === "PUT") {
00056|     return updateTask(path, body);
00057|   }
00058|   if (method === "DELETE") {
00059|     return deleteTask(path);
00060|   }
00061|   return "BAD_REQUEST";
00062| };
00063| 
00064| // --- HTTP server ---
...

<file>
00001| // verify.ts — Behavioral equivalence verification harness.
00002| //
00003| // Runs test scenarios against the Node.js reference server and
00004| // (when available) the Miniflare-hosted compiled Workers.
00005| // Asserts identical response status and body from both targets.
00006| 
00007| import { scenarios, type Scenario, type Step } from "./scenarios";
00008| 
00009| const REF_PORT = 4100;
00010| const CF_PORT = 4200;
00011| 
00012| // --- Reference server target ---
00013| 
00014| async function runAgainstRef(
00015|   scenario: Scenario
00016| ): Promise<{ step: Step; status: number; result: string | null }[]> {
00017|   const results: { step: Step; status: number; result: string | null }[] = [];
00018| 
00019|   for (const step of scenario.steps) {
00020|     const pathParts = step.path.split("/").filter(Boolean);
00021|     const taskId = pathParts[1] ?? "";
00022|     const url = `http://localhost:${REF_PORT}/tasks${taskId ? "/" + taskId : ""}`;
00023| 
00024|     const resp = await fetch(url, {
00025|       method: step.method,
00026|       body: step.method === "GET" || step.method === "DELETE" ? undefined : step.body,
00027|     });
00028| 
00029|     const json = (await resp.json()) as { result: string | null };
00030|     results.push({ step, status: resp.status, result: json.result });
00031|   }
00032| 
00033|   return results;
00034| }
00035| 
00036| // --- Reporting ---
00037| 
00038| function reportResults(
00039|   target: string,
00040|   scenario: Scenario,
00041|   results: { step: Step; status: number; result: string | null }[]
00042| ): boolean {
00043|   let allPass = true;
00044| 
00045|   for (const { step, status, result } of results) {
00046|     const statusOk = status === step.expectStatus;
00047|     const resultOk = result === step.expectResult;
00048|     const pass = statusOk && resultOk;
00049| 
00050|     if (!pass) {
00051|       allPass = false;
00052|       console.log(
00053|         `  FAIL [${target}] ${ste...

<file>
00001| // scenarios.ts — Test scenarios for behavioral equivalence verification.
00002| //
00003| // Each scenario is a sequence of HTTP operations with expected results.
00004| // The verification harness runs each scenario against both the Node.js
00005| // reference server and the Miniflare-hosted compiled Workers.
00006| 
00007| export type HttpMethod = "GET" | "POST" | "PUT" | "DELETE";
00008| 
00009| export interface Step {
00010|   method: HttpMethod;
00011|   path: string;
00012|   body?: string;
00013|   expectStatus: number;
00014|   expectResult: string | null;
00015|   description: string;
00016| }
00017| 
00018| export interface Scenario {
00019|   name: string;
00020|   steps: Step[];
00021| }
00022| 
00023| export const scenarios: Scenario[] = [
00024|   {
00025|     name: "basic CRUD lifecycle",
00026|     steps: [
00027|       {
00028|         method: "POST",
00029|         path: "/tasks",
00030|         body: "Buy groceries",
00031|         expectStatus: 200,
00032|         expectResult: "task_0",
00033|         description: "create first task",
00034|       },
00035|       {
00036|         method: "GET",
00037|         path: "/tasks/task_0",
00038|         expectStatus: 200,
00039|         expectResult: "Buy groceries",
00040|         description: "read created task",
00041|       },
00042|       {
00043|         method: "PUT",
00044|         path: "/tasks/task_0",
00045|         body: "Buy organic groceries",
00046|         expectStatus: 200,
00047|         expectResult: "OK",
00048|         description: "update task",
00049|       },
00050|       {
00051|         method: "GET",
00052|         path: "/tasks/task_0",
00053|         expectStatus: 200,
00054|         expectResult: "Buy organic groceries",
00055|         description: "read updated task",
00056|       },
00057|       {
00058|         method: "DELETE",
00059|         path: "/tasks/task_0",
00060|         expectStatus: 200,
00061|         expectResult: "OK",
00062|         descri...

<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| (** Tests for the task-api.ts decomposition.
00002| 
00003|     Verifies that CloudLang correctly decomposes the task API into:
00004|     - A "tasks_nextId" Worker group with all CRUD functions + KV bindings
00005|     - A "handleRequest" Worker group with service binding to tasks_nextId *)
00006| 
00007| let run () =
00008|   let program = Fixture.build_task_api_ast () in
00009|   let analysis = Fixture.analyze_exn program in
00010| 
00011|   (* --- Scope analysis --- *)
00012| 
00013|   (* 7 module-scope vars: tasks, nextId, createTask, getTask,
00014|      updateTask, deleteTask, handleRequest *)
00015|   assert (List.length analysis.module_vars = 7);
00016| 
00017|   let get_var name =
00018|     List.find
00019|       (fun (v : Cloudlang.Scope.var_info) -> v.name = name)
00020|       analysis.module_vars
00021|   in
00022|   assert (get_var "tasks").is_mutable_state;
00023|   assert (get_var "nextId").is_mutable_state;
00024|   assert (get_var "createTask").is_function;
00025|   assert (get_var "getTask").is_function;
00026|   assert (get_var "updateTask").is_function;
00027|   assert (get_var "deleteTask").is_function;
00028|   assert (get_var "handleRequest").is_function;
00029| 
00030|   (* 5 closures (one per arrow function) *)
00031|   assert (List.length analysis.closures = 5);
00032| 
00033|   let get_closure name =
00034|     List.find
00035|       (fun (c : Cloudlang.Scope.closure_info) -> c.name = name)
00036|       analysis.closures
00037|   in
00038| 
00039|   (* createTask captures both tasks and nextId *)
00040|   let c_create = get_closure "createTask" in
00041|   assert (List.mem "tasks" c_create.captures_mutable);
00042|   assert (List.mem "nextId" c_create.captures_mutable);
00043|   assert (c_create.called_functions = []);
00044| 
00045|   (* getTask captures tasks only *)
00046|   let c_get = get_closure "getTask" in
00047|   assert (c_get.captures_mutable = [ "tasks" ]);
00048|   assert (c_get.called_functions = []);
00049| 
...

<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 find_group_of_function : worker_group list -> string -> string option
00018| (** [find_group_of_function groups fn_name] returns the name of the group
00019|     that contains [fn_name], or [None]. *)
00020| 
00021| val do_fit_score : worker_group -> Scope.analysis_result -> int
00022| (** [do_fit_score group analysis] is a heuristic score in [0, 100] indicating
00023|     how well [group] fits Durable Object coordination semantics. *)
00024| 
00025| val infer_do_annotation :
00026|   worker_group -> Scope.analysis_result -> Ir.do_annotation option
00027| (** [infer_do_annotation group analysis] derives a Durable Object hint for
00028|     [group] when the fit score is high enough. *)
00029| 
00030| val to_ir : worker_group list -> Scope.analysis_result -> Ir.config
00031| 

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