Bundle language tools with CodeMirror package

packages/decodal-codemirror/README.md

@@ -2,8 +2,8 @@
 
 CodeMirror 6 language support for Decodal.
 
-This package provides the Lezer parser metadata, highlighting tags, indentation rules, and block folding used by the Decodal Web playground.
-It does not include the Decodal runtime or WebAssembly evaluator.
+This package provides the Lezer parser metadata, highlighting tags, indentation rules, block folding, and formatter command used by the Decodal Web playground.
+It does not include the Decodal runtime evaluator.
 Use `decodal-wasm` when you want to evaluate Decodal in a browser.
 
 ## Install
@@ -52,3 +52,23 @@ decodal({ highlight: false })
 ```
 
 Use this when you want the language support without the bundled highlight style.
+
+## Formatting
+
+The formatter is exposed as a separate subpath so plain syntax highlighting does not force callers to initialize WebAssembly.
+
+```js
+import {
+  formatDecodal,
+  formatDecodalCommand,
+  initDecodalFormatter,
+} from 'decodal-codemirror/format';
+import formatterWasm from 'decodal-codemirror/wasm/decodal_language_tools_bg.wasm?url';
+
+await initDecodalFormatter(formatterWasm);
+
+const result = formatDecodal('Server={port=Int default 8080;};');
+if (result.ok) console.log(result.source);
+
+formatDecodalCommand(view);
+```

packages/decodal-codemirror/jsr.json

@@ -1,10 +1,16 @@
 {
   "name": "@hare/decodal-codemirror",
-  "version": "0.1.3",
+  "version": "0.1.4",
   "license": "MIT",
-  "exports": "./src/mod.ts",
+  "exports": {
+    ".": "./src/mod.ts",
+    "./format": "./src/format.js",
+    "./parser": "./src/decodal-parser.js",
+    "./terms": "./src/decodal-parser.terms.js"
+  },
   "imports": {
     "@codemirror/language": "npm:@codemirror/language@^6.12.4",
+    "@codemirror/view": "npm:@codemirror/view@^6.43.6",
     "@lezer/highlight": "npm:@lezer/highlight@^1.2.3",
     "@lezer/lr": "npm:@lezer/lr@^1.4.10"
   },
@@ -15,9 +21,16 @@
       "src/decodal.js",
       "src/decodal.d.ts",
       "src/decodal.js.d.ts",
+      "src/format.js",
+      "src/format.d.ts",
+      "src/format.js.d.ts",
       "src/decodal-parser-jsr.js",
       "src/decodal-parser.js",
       "src/decodal-parser.terms.js",
+      "wasm/decodal_language_tools.js",
+      "wasm/decodal_language_tools.d.ts",
+      "wasm/decodal_language_tools_bg.wasm",
+      "wasm/decodal_language_tools_bg.wasm.d.ts",
       "package.json"
     ]
   }

packages/decodal-codemirror/package-lock.json

@@ -1,20 +1,22 @@
 {
   "name": "decodal-codemirror",
-  "version": "0.1.3",
+  "version": "0.1.4",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "decodal-codemirror",
-      "version": "0.1.3",
+      "version": "0.1.4",
       "license": "MIT OR Apache-2.0",
       "devDependencies": {
         "@codemirror/language": "^6.12.4",
+        "@codemirror/view": "^6.43.6",
         "@lezer/highlight": "^1.2.3",
         "@lezer/lr": "^1.4.10"
       },
       "peerDependencies": {
         "@codemirror/language": "^6.12.4",
+        "@codemirror/view": "^6.43.6",
         "@lezer/highlight": "^1.2.3",
         "@lezer/lr": "^1.4.10"
       }

packages/decodal-codemirror/package.json

@@ -1,6 +1,6 @@
 {
   "name": "decodal-codemirror",
-  "version": "0.1.3",
+  "version": "0.1.4",
   "description": "CodeMirror 6 language support for Decodal.",
   "type": "module",
   "license": "MIT OR Apache-2.0",
@@ -14,13 +14,22 @@
       "types": "./src/decodal.d.ts",
       "import": "./src/decodal.js"
     },
+    "./format": {
+      "types": "./src/format.d.ts",
+      "import": "./src/format.js"
+    },
     "./parser": "./src/decodal-parser.js",
-    "./terms": "./src/decodal-parser.terms.js"
+    "./terms": "./src/decodal-parser.terms.js",
+    "./wasm/decodal_language_tools_bg.wasm": "./wasm/decodal_language_tools_bg.wasm"
   },
   "types": "./src/decodal.d.ts",
   "files": [
     "README.md",
-    "src/"
+    "src/",
+    "wasm/decodal_language_tools.js",
+    "wasm/decodal_language_tools.d.ts",
+    "wasm/decodal_language_tools_bg.wasm",
+    "wasm/decodal_language_tools_bg.wasm.d.ts"
   ],
   "keywords": [
     "decodal",
@@ -29,11 +38,13 @@
   ],
   "peerDependencies": {
     "@codemirror/language": "^6.12.4",
+    "@codemirror/view": "^6.43.6",
     "@lezer/highlight": "^1.2.3",
     "@lezer/lr": "^1.4.10"
   },
   "devDependencies": {
     "@codemirror/language": "^6.12.4",
+    "@codemirror/view": "^6.43.6",
     "@lezer/highlight": "^1.2.3",
     "@lezer/lr": "^1.4.10"
   }

packages/decodal-codemirror/src/format.d.ts

@@ -0,0 +1,17 @@
+import type { EditorView } from '@codemirror/view';
+
+export interface FormatSuccess {
+  ok: true;
+  source: string;
+}
+
+export interface FormatFailure {
+  ok: false;
+  error: string;
+}
+
+export type FormatResult = FormatSuccess | FormatFailure;
+
+export declare function initDecodalFormatter(moduleOrPath?: RequestInfo | URL | Response | BufferSource | WebAssembly.Module): Promise<void>;
+export declare function formatDecodal(source: string): FormatResult;
+export declare function formatDecodalCommand(view: EditorView): boolean;

packages/decodal-codemirror/src/format.js

@@ -0,0 +1,28 @@
+import initLanguageTools, { formatSource } from '../wasm/decodal_language_tools.js';
+
+let initialized = false;
+
+export async function initDecodalFormatter(moduleOrPath) {
+  await initLanguageTools(moduleOrPath);
+  initialized = true;
+}
+
+export function formatDecodal(source) {
+  if (!initialized) {
+    return { ok: false, error: 'Decodal formatter is not initialized' };
+  }
+  return JSON.parse(formatSource(source));
+}
+
+export function formatDecodalCommand(view) {
+  const result = formatDecodal(view.state.doc.toString());
+  if (!result.ok) return false;
+  view.dispatch({
+    changes: {
+      from: 0,
+      to: view.state.doc.length,
+      insert: result.source,
+    },
+  });
+  return true;
+}

packages/decodal-codemirror/src/format.js.d.ts

@@ -0,0 +1,17 @@
+import type { EditorView } from '@codemirror/view';
+
+export interface FormatSuccess {
+  ok: true;
+  source: string;
+}
+
+export interface FormatFailure {
+  ok: false;
+  error: string;
+}
+
+export type FormatResult = FormatSuccess | FormatFailure;
+
+export declare function initDecodalFormatter(moduleOrPath?: RequestInfo | URL | Response | BufferSource | WebAssembly.Module): Promise<void>;
+export declare function formatDecodal(source: string): FormatResult;
+export declare function formatDecodalCommand(view: EditorView): boolean;

packages/decodal-codemirror/wasm/.gitignore

@@ -0,0 +1 @@
+# wasm-pack output is committed as part of decodal-codemirror.

packages/decodal-codemirror/wasm/decodal_language_tools.d.ts

@@ -0,0 +1,38 @@
+/* tslint:disable */
+/* eslint-disable */
+
+export function formatSource(source: string): string;
+
+export type InitInput = RequestInfo | URL | Response | BufferSource | WebAssembly.Module;
+
+export interface InitOutput {
+    readonly memory: WebAssembly.Memory;
+    readonly formatSource: (a: number, b: number) => [number, number];
+    readonly __wbindgen_externrefs: WebAssembly.Table;
+    readonly __wbindgen_malloc: (a: number, b: number) => number;
+    readonly __wbindgen_realloc: (a: number, b: number, c: number, d: number) => number;
+    readonly __wbindgen_free: (a: number, b: number, c: number) => void;
+    readonly __wbindgen_start: () => void;
+}
+
+export type SyncInitInput = BufferSource | WebAssembly.Module;
+
+/**
+ * Instantiates the given `module`, which can either be bytes or
+ * a precompiled `WebAssembly.Module`.
+ *
+ * @param {{ module: SyncInitInput }} module - Passing `SyncInitInput` directly is deprecated.
+ *
+ * @returns {InitOutput}
+ */
+export function initSync(module: { module: SyncInitInput } | SyncInitInput): InitOutput;
+
+/**
+ * If `module_or_path` is {RequestInfo} or {URL}, makes a request and
+ * for everything else, calls `WebAssembly.instantiate` directly.
+ *
+ * @param {{ module_or_path: InitInput | Promise<InitInput> }} module_or_path - Passing `InitInput` directly is deprecated.
+ *
+ * @returns {Promise<InitOutput>}
+ */
+export default function __wbg_init (module_or_path?: { module_or_path: InitInput | Promise<InitInput> } | InitInput | Promise<InitInput>): Promise<InitOutput>;

packages/decodal-codemirror/wasm/decodal_language_tools.js

@@ -0,0 +1,209 @@
+/* @ts-self-types="./decodal_language_tools.d.ts" */
+
+/**
+ * @param {string} source
+ * @returns {string}
+ */
+export function formatSource(source) {
+    let deferred2_0;
+    let deferred2_1;
+    try {
+        const ptr0 = passStringToWasm0(source, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
+        const len0 = WASM_VECTOR_LEN;
+        const ret = wasm.formatSource(ptr0, len0);
+        deferred2_0 = ret[0];
+        deferred2_1 = ret[1];
+        return getStringFromWasm0(ret[0], ret[1]);
+    } finally {
+        wasm.__wbindgen_free(deferred2_0, deferred2_1, 1);
+    }
+}
+function __wbg_get_imports() {
+    const import0 = {
+        __proto__: null,
+        __wbindgen_init_externref_table: function() {
+            const table = wasm.__wbindgen_externrefs;
+            const offset = table.grow(4);
+            table.set(0, undefined);
+            table.set(offset + 0, undefined);
+            table.set(offset + 1, null);
+            table.set(offset + 2, true);
+            table.set(offset + 3, false);
+        },
+    };
+    return {
+        __proto__: null,
+        "./decodal_language_tools_bg.js": import0,
+    };
+}
+
+function getStringFromWasm0(ptr, len) {
+    return decodeText(ptr >>> 0, len);
+}
+
+let cachedUint8ArrayMemory0 = null;
+function getUint8ArrayMemory0() {
+    if (cachedUint8ArrayMemory0 === null || cachedUint8ArrayMemory0.byteLength === 0) {
+        cachedUint8ArrayMemory0 = new Uint8Array(wasm.memory.buffer);
+    }
+    return cachedUint8ArrayMemory0;
+}
+
+function passStringToWasm0(arg, malloc, realloc) {
+    if (realloc === undefined) {
+        const buf = cachedTextEncoder.encode(arg);
+        const ptr = malloc(buf.length, 1) >>> 0;
+        getUint8ArrayMemory0().subarray(ptr, ptr + buf.length).set(buf);
+        WASM_VECTOR_LEN = buf.length;
+        return ptr;
+    }
+
+    let len = arg.length;
+    let ptr = malloc(len, 1) >>> 0;
+
+    const mem = getUint8ArrayMemory0();
+
+    let offset = 0;
+
+    for (; offset < len; offset++) {
+        const code = arg.charCodeAt(offset);
+        if (code > 0x7F) break;
+        mem[ptr + offset] = code;
+    }
+    if (offset !== len) {
+        if (offset !== 0) {
+            arg = arg.slice(offset);
+        }
+        ptr = realloc(ptr, len, len = offset + arg.length * 3, 1) >>> 0;
+        const view = getUint8ArrayMemory0().subarray(ptr + offset, ptr + len);
+        const ret = cachedTextEncoder.encodeInto(arg, view);
+
+        offset += ret.written;
+        ptr = realloc(ptr, len, offset, 1) >>> 0;
+    }
+
+    WASM_VECTOR_LEN = offset;
+    return ptr;
+}
+
+let cachedTextDecoder = new TextDecoder('utf-8', { ignoreBOM: true, fatal: true });
+cachedTextDecoder.decode();
+const MAX_SAFARI_DECODE_BYTES = 2146435072;
+let numBytesDecoded = 0;
+function decodeText(ptr, len) {
+    numBytesDecoded += len;
+    if (numBytesDecoded >= MAX_SAFARI_DECODE_BYTES) {
+        cachedTextDecoder = new TextDecoder('utf-8', { ignoreBOM: true, fatal: true });
+        cachedTextDecoder.decode();
+        numBytesDecoded = len;
+    }
+    return cachedTextDecoder.decode(getUint8ArrayMemory0().subarray(ptr, ptr + len));
+}
+
+const cachedTextEncoder = new TextEncoder();
+
+if (!('encodeInto' in cachedTextEncoder)) {
+    cachedTextEncoder.encodeInto = function (arg, view) {
+        const buf = cachedTextEncoder.encode(arg);
+        view.set(buf);
+        return {
+            read: arg.length,
+            written: buf.length
+        };
+    };
+}
+
+let WASM_VECTOR_LEN = 0;
+
+let wasmModule, wasmInstance, wasm;
+function __wbg_finalize_init(instance, module) {
+    wasmInstance = instance;
+    wasm = instance.exports;
+    wasmModule = module;
+    cachedUint8ArrayMemory0 = null;
+    wasm.__wbindgen_start();
+    return wasm;
+}
+
+async function __wbg_load(module, imports) {
+    if (typeof Response === 'function' && module instanceof Response) {
+        if (typeof WebAssembly.instantiateStreaming === 'function') {
+            try {
+                return await WebAssembly.instantiateStreaming(module, imports);
+            } catch (e) {
+                const validResponse = module.ok && expectedResponseType(module.type);
+
+                if (validResponse && module.headers.get('Content-Type') !== 'application/wasm') {
+                    console.warn("`WebAssembly.instantiateStreaming` failed because your server does not serve Wasm with `application/wasm` MIME type. Falling back to `WebAssembly.instantiate` which is slower. Original error:\n", e);
+
+                } else { throw e; }
+            }
+        }
+
+        const bytes = await module.arrayBuffer();
+        return await WebAssembly.instantiate(bytes, imports);
+    } else {
+        const instance = await WebAssembly.instantiate(module, imports);
+
+        if (instance instanceof WebAssembly.Instance) {
+            return { instance, module };
+        } else {
+            return instance;
+        }
+    }
+
+    function expectedResponseType(type) {
+        switch (type) {
+            case 'basic': case 'cors': case 'default': return true;
+        }
+        return false;
+    }
+}
+
+function initSync(module) {
+    if (wasm !== undefined) return wasm;
+
+
+    if (module !== undefined) {
+        if (Object.getPrototypeOf(module) === Object.prototype) {
+            ({module} = module)
+        } else {
+            console.warn('using deprecated parameters for `initSync()`; pass a single object instead')
+        }
+    }
+
+    const imports = __wbg_get_imports();
+    if (!(module instanceof WebAssembly.Module)) {
+        module = new WebAssembly.Module(module);
+    }
+    const instance = new WebAssembly.Instance(module, imports);
+    return __wbg_finalize_init(instance, module);
+}
+
+async function __wbg_init(module_or_path) {
+    if (wasm !== undefined) return wasm;
+
+
+    if (module_or_path !== undefined) {
+        if (Object.getPrototypeOf(module_or_path) === Object.prototype) {
+            ({module_or_path} = module_or_path)
+        } else {
+            console.warn('using deprecated parameters for the initialization function; pass a single object instead')
+        }
+    }
+
+    if (module_or_path === undefined) {
+        module_or_path = new URL('decodal_language_tools_bg.wasm', import.meta.url);
+    }
+    const imports = __wbg_get_imports();
+
+    if (typeof module_or_path === 'string' || (typeof Request === 'function' && module_or_path instanceof Request) || (typeof URL === 'function' && module_or_path instanceof URL)) {
+        module_or_path = fetch(module_or_path);
+    }
+
+    const { instance, module } = await __wbg_load(await module_or_path, imports);
+
+    return __wbg_finalize_init(instance, module);
+}
+
+export { initSync, __wbg_init as default };

packages/decodal-codemirror/wasm/decodal_language_tools_bg.wasm.d.ts

@@ -0,0 +1,9 @@
+/* tslint:disable */
+/* eslint-disable */
+export const memory: WebAssembly.Memory;
+export const formatSource: (a: number, b: number) => [number, number];
+export const __wbindgen_externrefs: WebAssembly.Table;
+export const __wbindgen_malloc: (a: number, b: number) => number;
+export const __wbindgen_realloc: (a: number, b: number, c: number, d: number) => number;
+export const __wbindgen_free: (a: number, b: number, c: number) => void;
+export const __wbindgen_start: () => void;