chore: migrate to the new moon project format

AGENTS.md

@@ -12,7 +12,7 @@ You can browse and install extra skills here:
   blackbox test files (ending in `_test.mbt`) and whitebox test files (ending in
   `_wbtest.mbt`).
 
-- In the toplevel directory, there is a `moon.mod.json` file listing module
+- In the toplevel directory, there is a `moon.mod` file listing module
   metadata.
 
 ## Coding convention

CONTRIBUTING-ja.md

@@ -15,7 +15,7 @@ puruslang/purus
 ├── bin/          # CLI エントリポイント
 ├── scripts/      # ビルド・同期スクリプト
 ├── examples/     # サンプル .purus ファイル
-├── moon.mod.json # MoonBit モジュール定義
+├── moon.mod # MoonBit モジュール定義
 └── package.json
 ```
 
@@ -42,7 +42,7 @@ node scripts/build.js
 | `moon test` | 全テストの実行 |
 | `moon check` | 型チェック |
 | `npm run build` | フルビルド（コンパイル + コピー）|
-| `npm run sync` | バージョンを moon.mod.json に同期 |
+| `npm run sync` | バージョンを moon.mod に同期 |
 
 ## プルリクエストの提出
 

CONTRIBUTING.md

@@ -15,7 +15,7 @@ puruslang/purus
 ├── bin/          # CLI entry point
 ├── scripts/      # Build & sync scripts
 ├── examples/     # Sample .purus files
-├── moon.mod.json # MoonBit module definition
+├── moon.mod # MoonBit module definition
 └── package.json
 ```
 
@@ -42,7 +42,7 @@ node scripts/build.js
 | `moon test` | Run all tests |
 | `moon check` | Type check |
 | `npm run build` | Full build (compile + copy) |
-| `npm run sync` | Sync version to moon.mod.json |
+| `npm run sync` | Sync version to moon.mod |
 
 ## Submitting Pull Requests
 

moon.mod

@@ -0,0 +1,17 @@
+name = "puruslang/purus"
+
+version = "1.0.0"
+
+import {
+  "moonbitlang/x@0.4.40",
+}
+
+readme = "README.md"
+
+repository = "https://github.com/puruslang/purus"
+
+license = "Apache-2.0"
+
+keywords = [ "purus", "compiler", "altjs", "javascript" ]
+
+description = "A language that compiles to JavaScript — no Shift key required"

scripts/sync-version.js

@@ -1,5 +1,5 @@
 /**
- * Sync version from package.json to moon.mod.json
+ * Sync version from package.json to moon.mod
  */
 
 const fs = require("fs");
@@ -8,16 +8,26 @@ const path = require("path");
 const root = path.join(__dirname, "..");
 const version = require(path.join(root, "package.json")).version;
 
-const moonModPath = path.join(root, "moon.mod.json");
-const moonMod = JSON.parse(fs.readFileSync(moonModPath, "utf8"));
-const oldVersion = moonMod.version;
-moonMod.version = version;
-fs.writeFileSync(moonModPath, JSON.stringify(moonMod, null, "  ") + "\n", "utf8");
+const moonModPath = path.join(root, "moon.mod");
+const content = fs.readFileSync(moonModPath, "utf8");
+
+const versionLine = /^version\s*=\s*"([^"]*)"/m;
+const match = content.match(versionLine);
+if (!match) {
+  console.error("Error: no version field found in moon.mod");
+  process.exit(1);
+}
+const oldVersion = match[1];
+fs.writeFileSync(
+  moonModPath,
+  content.replace(versionLine, `version = "${version}"`),
+  "utf8",
+);
 
 if (oldVersion !== version) {
-  console.log(`moon.mod.json: ${oldVersion} -> ${version}`);
+  console.log(`moon.mod: ${oldVersion} -> ${version}`);
 } else {
-  console.log(`moon.mod.json: ${version} (no change)`);
+  console.log(`moon.mod: ${version} (no change)`);
 }
 
-console.log(`\nAll versions synced to ${version}`);
+console.log(`\nAll versions synced to ${version}`);

src/cmd/main/moon.pkg

@@ -1,9 +1,9 @@
 import {
-  "puruslang/purus/src/lexer" @lexer,
-  "puruslang/purus/src/parser" @parser,
-  "puruslang/purus/src/codegen" @codegen,
-  "moonbitlang/x/sys" @sys,
-  "moonbitlang/x/fs" @fs,
+  "puruslang/purus/src/lexer",
+  "puruslang/purus/src/parser",
+  "puruslang/purus/src/codegen",
+  "moonbitlang/x/sys",
+  "moonbitlang/x/fs",
 }
 
 options(

src/cmd/main/pkg.generated.mbti

@@ -0,0 +1,13 @@
+// Generated using `moon info`, DON'T EDIT IT
+package "puruslang/purus/src/cmd/main"
+
+// Values
+
+// Errors
+
+// Types and methods
+
+// Type aliases
+
+// Traits
+

src/codegen/moon.pkg

@@ -0,0 +1,7 @@
+import {
+  "puruslang/purus/src/parser",
+}
+
+import {
+  "puruslang/purus/src/lexer",
+} for "test"

src/codegen/pkg.generated.mbti

@@ -0,0 +1,26 @@
+// Generated using `moon info`, DON'T EDIT IT
+package "puruslang/purus/src/codegen"
+
+import {
+  "puruslang/purus/src/parser",
+}
+
+// Values
+
+// Errors
+
+// Types and methods
+pub(all) struct JsCodegen {
+  buf : StringBuilder
+  mut indent_level : Int
+  mut private_fields : Array[String]
+  mut declared_vars : Array[String]
+  cjs : Bool
+}
+pub fn JsCodegen::generate(Self, Array[@parser.Stmt], header? : String, shebang? : String, strict? : Bool) -> String
+pub fn JsCodegen::new(cjs? : Bool) -> Self
+
+// Type aliases
+
+// Traits
+

src/lexer/pkg.generated.mbti

@@ -0,0 +1,153 @@
+// Generated using `moon info`, DON'T EDIT IT
+package "puruslang/purus/src/lexer"
+
+import {
+  "moonbitlang/core/debug",
+}
+
+// Values
+
+// Errors
+
+// Types and methods
+pub(all) struct Lexer {
+  chars : Array[Char]
+  mut pos : Int
+  mut line : Int
+  mut col : Int
+  mut tokens : Array[Token]
+}
+pub fn Lexer::new(String) -> Self
+pub fn Lexer::tokenize(Self) -> Array[Token]
+
+pub(all) struct Token {
+  kind : TokenKind
+  line : Int
+  col : Int
+} derive(@debug.Debug)
+pub impl Show for Token
+
+pub(all) enum TokenKind {
+  Int(Int)
+  BigInt(String)
+  Float(Double)
+  Str(String)
+  Regex(String, String)
+  True_
+  False_
+  Ident(String)
+  Const_
+  Let_
+  Var_
+  Be
+  Add
+  Sub
+  Mul
+  Div
+  Fdiv
+  Mod
+  Neg
+  Pow
+  Eq
+  Neq
+  Lt
+  Gt
+  Le
+  Ge
+  And
+  Or
+  Not
+  Coal
+  Band
+  Bor
+  Bxor
+  Bnot
+  Shl
+  Shr
+  Ushr
+  Fn
+  Return_
+  To
+  If_
+  Elif
+  Else_
+  Unless
+  Then_
+  While_
+  Until
+  Do_
+  Yield_
+  For_
+  In_
+  Range_
+  Break_
+  Continue_
+  Match_
+  When_
+  Switch_
+  Case_
+  Pipe_
+  As
+  Of
+  Gives
+  Typeof_
+  Void_
+  Instanceof_
+  New_
+  Delete_
+  This_
+  Async_
+  Await_
+  Try_
+  Catch_
+  Finally_
+  Throw_
+  Import_
+  From_
+  Export_
+  Default_
+  Require_
+  Use_
+  Mod_
+  Public_
+  All_
+  Type_
+  With_
+  Class_
+  Extends_
+  Super_
+  Static_
+  Private_
+  Get_
+  Set_
+  Null_
+  Nil_
+  Undefined_
+  Nan_
+  Infinity_
+  List_
+  Object_
+  LBracket
+  RBracket
+  Comma
+  Semicolon
+  Dot
+  DotDot
+  DotDotDot
+  Backslash
+  OptDot
+  Newline
+  Indent(Int)
+  InterpStr(Array[String])
+  Blank
+  Shebang(String)
+  Comment(String)
+  BlockComment(String)
+  Eof
+} derive(Eq, @debug.Debug)
+pub impl Show for TokenKind
+
+// Type aliases
+
+// Traits
+

src/parser/moon.pkg

@@ -1,3 +1,3 @@
 import {
-  "puruslang/purus/src/lexer" @lexer,
+  "puruslang/purus/src/lexer",
 }