✨ Added dart prettier plugin

frontend/src/common/prettier/plugins/dart/dart_fmt.d.ts

@@ -0,0 +1,32 @@
+export function format(input: string, filename: string, config?: LayoutConfig): string;
+
+interface LayoutConfig {
+	line_width?: number;
+	line_ending?: "lf" | "crlf";
+	language_version?: string;
+}
+
+export type InitInput = RequestInfo | URL | Response | BufferSource | WebAssembly.Module;
+
+export type InitOutput = unknown;
+
+// export type SyncInitInput = BufferSource | WebAssembly.Module;
+// /**
+// * Instantiates the given `module`, which can either be bytes or
+// * a precompiled `WebAssembly.Module`.
+// *
+// * @param {SyncInitInput} module
+// *
+// * @returns {InitOutput}
+// */
+// export function initSync(module: SyncInitInput): InitOutput;
+
+/**
+* If `module_or_path` is {RequestInfo} or {URL}, makes a request and
+* for everything else, calls `WebAssembly.instantiate` directly.
+*
+* @param {InitInput | Promise<InitInput>} module_or_path
+*
+* @returns {Promise<InitOutput>}
+*/
+export default function init(module_or_path?: InitInput | Promise<InitInput>): Promise<InitOutput>;

frontend/src/common/prettier/plugins/dart/dart_fmt.js

@@ -0,0 +1,84 @@
+import { format as dart_fmt, instantiate, invoke } from "./dart_fmt.mjs";
+
+let wasm;
+
+function get_imports() {}
+function init_memory() {}
+
+function normalize(module) {
+	if (!(module instanceof WebAssembly.Module)) {
+		return new WebAssembly.Module(module);
+	}
+	return module;
+}
+
+export default async function (input) {
+	if (wasm !== undefined) return wasm;
+
+	if (typeof input === "undefined") {
+		input = new URL("dart_fmt.wasm", import.meta.url);
+	}
+	const imports = get_imports();
+
+	if (
+		typeof input === "string" ||
+		(typeof Request === "function" && input instanceof Request) ||
+		(typeof URL === "function" && input instanceof URL)
+	) {
+		input = fetch(input);
+	}
+
+	init_memory(imports);
+
+	wasm = await load(await input)
+		.then(normalize)
+		.then(instantiate);
+
+	invoke(wasm);
+
+	return wasm;
+}
+
+async function load(module) {
+	if (typeof Response === "function" && module instanceof Response) {
+		if ("compileStreaming" in WebAssembly) {
+			try {
+				return await WebAssembly.compileStreaming(module);
+			} catch (e) {
+				if (module.headers.get("Content-Type") != "application/wasm") {
+					console.warn(
+						"`WebAssembly.compileStreaming` 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;
+				}
+			}
+		}
+
+		return module.arrayBuffer();
+	}
+
+	return module;
+}
+
+export function format(source, filename = "stdin.dart", config = {}) {
+	const options = { lineEnding: "\n" };
+	if (config.line_width) {
+		options.pageWidth = config.line_width;
+	}
+	if (options.line_ending === "crlf") {
+		options.lineEnding = "\r\n";
+	}
+	if(options.language_version) {
+		options.languageVersion = options.language_version;
+	}
+
+	const result = dart_fmt(source, filename, JSON.stringify(options));
+	const err = result[0] === "x";
+	const output = result.slice(1);
+	if (err) {
+		throw new Error(output);
+	}
+	return output;
+}

frontend/src/common/prettier/plugins/dart/dart_fmt.mjs

@@ -0,0 +1,350 @@
+
+// `modulePromise` is a promise to the `WebAssembly.module` object to be
+//   instantiated.
+// `importObjectPromise` is a promise to an object that contains any additional
+//   imports needed by the module that aren't provided by the standard runtime.
+//   The fields on this object will be merged into the importObject with which
+//   the module will be instantiated.
+// This function returns a promise to the instantiated module.
+export const instantiate = async (modulePromise, importObjectPromise) => {
+    let dartInstance;
+
+    // Prints to the console
+    function printToConsole(value) {
+      if (typeof dartPrint == "function") {
+        dartPrint(value);
+        return;
+      }
+      if (typeof console == "object" && typeof console.log != "undefined") {
+        console.log(value);
+        return;
+      }
+      if (typeof print == "function") {
+        print(value);
+        return;
+      }
+
+      throw "Unable to print message: " + js;
+    }
+
+    // Converts a Dart List to a JS array. Any Dart objects will be converted, but
+    // this will be cheap for JSValues.
+    function arrayFromDartList(constructor, list) {
+      const exports = dartInstance.exports;
+      const read = exports.$listRead;
+      const length = exports.$listLength(list);
+      const array = new constructor(length);
+      for (let i = 0; i < length; i++) {
+        array[i] = read(list, i);
+      }
+      return array;
+    }
+
+    // A special symbol attached to functions that wrap Dart functions.
+    const jsWrappedDartFunctionSymbol = Symbol("JSWrappedDartFunction");
+
+    function finalizeWrapper(dartFunction, wrapped) {
+      wrapped.dartFunction = dartFunction;
+      wrapped[jsWrappedDartFunctionSymbol] = true;
+      return wrapped;
+    }
+
+    // Imports
+    const dart2wasm = {
+
+_49: v => v.toString(),
+_64: s => {
+      if (!/^\s*[+-]?(?:Infinity|NaN|(?:\.\d+|\d+(?:\.\d*)?)(?:[eE][+-]?\d+)?)\s*$/.test(s)) {
+        return NaN;
+      }
+      return parseFloat(s);
+    },
+_65: () => {
+          let stackString = new Error().stack.toString();
+          let frames = stackString.split('\n');
+          let drop = 2;
+          if (frames[0] === 'Error') {
+              drop += 1;
+          }
+          return frames.slice(drop).join('\n');
+        },
+_69: () => {
+      // On browsers return `globalThis.location.href`
+      if (globalThis.location != null) {
+        return globalThis.location.href;
+      }
+      return null;
+    },
+_70: () => {
+        return typeof process != "undefined" &&
+               Object.prototype.toString.call(process) == "[object process]" &&
+               process.platform == "win32"
+      },
+_85: s => JSON.stringify(s),
+_86: s => printToConsole(s),
+_87: a => a.join(''),
+_90: (s, t) => s.split(t),
+_91: s => s.toLowerCase(),
+_92: s => s.toUpperCase(),
+_93: s => s.trim(),
+_97: (s, p, i) => s.indexOf(p, i),
+_98: (s, p, i) => s.lastIndexOf(p, i),
+_100: Object.is,
+_101: s => s.toUpperCase(),
+_102: s => s.toLowerCase(),
+_103: (a, i) => a.push(i),
+_113: (a, b) => a == b ? 0 : (a > b ? 1 : -1),
+_114: a => a.length,
+_116: (a, i) => a[i],
+_117: (a, i, v) => a[i] = v,
+_120: (o, start, length) => new Uint8Array(o.buffer, o.byteOffset + start, length),
+_121: (o, start, length) => new Int8Array(o.buffer, o.byteOffset + start, length),
+_122: (o, start, length) => new Uint8ClampedArray(o.buffer, o.byteOffset + start, length),
+_123: (o, start, length) => new Uint16Array(o.buffer, o.byteOffset + start, length),
+_124: (o, start, length) => new Int16Array(o.buffer, o.byteOffset + start, length),
+_125: (o, start, length) => new Uint32Array(o.buffer, o.byteOffset + start, length),
+_126: (o, start, length) => new Int32Array(o.buffer, o.byteOffset + start, length),
+_129: (o, start, length) => new Float32Array(o.buffer, o.byteOffset + start, length),
+_130: (o, start, length) => new Float64Array(o.buffer, o.byteOffset + start, length),
+_133: (o) => new DataView(o.buffer, o.byteOffset, o.byteLength),
+_137: Function.prototype.call.bind(Object.getOwnPropertyDescriptor(DataView.prototype, 'byteLength').get),
+_138: (b, o) => new DataView(b, o),
+_140: Function.prototype.call.bind(DataView.prototype.getUint8),
+_141: Function.prototype.call.bind(DataView.prototype.setUint8),
+_142: Function.prototype.call.bind(DataView.prototype.getInt8),
+_143: Function.prototype.call.bind(DataView.prototype.setInt8),
+_144: Function.prototype.call.bind(DataView.prototype.getUint16),
+_145: Function.prototype.call.bind(DataView.prototype.setUint16),
+_146: Function.prototype.call.bind(DataView.prototype.getInt16),
+_147: Function.prototype.call.bind(DataView.prototype.setInt16),
+_148: Function.prototype.call.bind(DataView.prototype.getUint32),
+_149: Function.prototype.call.bind(DataView.prototype.setUint32),
+_150: Function.prototype.call.bind(DataView.prototype.getInt32),
+_151: Function.prototype.call.bind(DataView.prototype.setInt32),
+_156: Function.prototype.call.bind(DataView.prototype.getFloat32),
+_157: Function.prototype.call.bind(DataView.prototype.setFloat32),
+_158: Function.prototype.call.bind(DataView.prototype.getFloat64),
+_159: Function.prototype.call.bind(DataView.prototype.setFloat64),
+_165: x0 => format = x0,
+_166: f => finalizeWrapper(f, function(x0,x1,x2) { return dartInstance.exports._166(f,arguments.length,x0,x1,x2) }),
+_184: (c) =>
+              queueMicrotask(() => dartInstance.exports.$invokeCallback(c)),
+_187: (s, m) => {
+          try {
+            return new RegExp(s, m);
+          } catch (e) {
+            return String(e);
+          }
+        },
+_188: (x0,x1) => x0.exec(x1),
+_189: (x0,x1) => x0.test(x1),
+_190: (x0,x1) => x0.exec(x1),
+_191: (x0,x1) => x0.exec(x1),
+_192: x0 => x0.pop(),
+_198: o => o === undefined,
+_199: o => typeof o === 'boolean',
+_200: o => typeof o === 'number',
+_202: o => typeof o === 'string',
+_205: o => o instanceof Int8Array,
+_206: o => o instanceof Uint8Array,
+_207: o => o instanceof Uint8ClampedArray,
+_208: o => o instanceof Int16Array,
+_209: o => o instanceof Uint16Array,
+_210: o => o instanceof Int32Array,
+_211: o => o instanceof Uint32Array,
+_212: o => o instanceof Float32Array,
+_213: o => o instanceof Float64Array,
+_214: o => o instanceof ArrayBuffer,
+_215: o => o instanceof DataView,
+_216: o => o instanceof Array,
+_217: o => typeof o === 'function' && o[jsWrappedDartFunctionSymbol] === true,
+_220: o => o instanceof RegExp,
+_221: (l, r) => l === r,
+_222: o => o,
+_223: o => o,
+_224: o => o,
+_225: b => !!b,
+_226: o => o.length,
+_229: (o, i) => o[i],
+_230: f => f.dartFunction,
+_231: l => arrayFromDartList(Int8Array, l),
+_232: (data, length) => {
+          const jsBytes = new Uint8Array(length);
+          const getByte = dartInstance.exports.$uint8ListGet;
+          for (let i = 0; i < length; i++) {
+            jsBytes[i] = getByte(data, i);
+          }
+          return jsBytes;
+        },
+_233: l => arrayFromDartList(Uint8ClampedArray, l),
+_234: l => arrayFromDartList(Int16Array, l),
+_235: l => arrayFromDartList(Uint16Array, l),
+_236: l => arrayFromDartList(Int32Array, l),
+_237: l => arrayFromDartList(Uint32Array, l),
+_238: l => arrayFromDartList(Float32Array, l),
+_239: l => arrayFromDartList(Float64Array, l),
+_240: (data, length) => {
+          const read = dartInstance.exports.$byteDataGetUint8;
+          const view = new DataView(new ArrayBuffer(length));
+          for (let i = 0; i < length; i++) {
+              view.setUint8(i, read(data, i));
+          }
+          return view;
+        },
+_241: l => arrayFromDartList(Array, l),
+_242:       (s, length) => {
+        if (length == 0) return '';
+
+        const read = dartInstance.exports.$stringRead1;
+        let result = '';
+        let index = 0;
+        const chunkLength = Math.min(length - index, 500);
+        let array = new Array(chunkLength);
+        while (index < length) {
+          const newChunkLength = Math.min(length - index, 500);
+          for (let i = 0; i < newChunkLength; i++) {
+            array[i] = read(s, index++);
+          }
+          if (newChunkLength < chunkLength) {
+            array = array.slice(0, newChunkLength);
+          }
+          result += String.fromCharCode(...array);
+        }
+        return result;
+      }
+      ,
+_243:     (s, length) => {
+      if (length == 0) return '';
+
+      const read = dartInstance.exports.$stringRead2;
+      let result = '';
+      let index = 0;
+      const chunkLength = Math.min(length - index, 500);
+      let array = new Array(chunkLength);
+      while (index < length) {
+        const newChunkLength = Math.min(length - index, 500);
+        for (let i = 0; i < newChunkLength; i++) {
+          array[i] = read(s, index++);
+        }
+        if (newChunkLength < chunkLength) {
+          array = array.slice(0, newChunkLength);
+        }
+        result += String.fromCharCode(...array);
+      }
+      return result;
+    }
+    ,
+_244:     (s) => {
+      let length = s.length;
+      let range = 0;
+      for (let i = 0; i < length; i++) {
+        range |= s.codePointAt(i);
+      }
+      const exports = dartInstance.exports;
+      if (range < 256) {
+        if (length <= 10) {
+          if (length == 1) {
+            return exports.$stringAllocate1_1(s.codePointAt(0));
+          }
+          if (length == 2) {
+            return exports.$stringAllocate1_2(s.codePointAt(0), s.codePointAt(1));
+          }
+          if (length == 3) {
+            return exports.$stringAllocate1_3(s.codePointAt(0), s.codePointAt(1), s.codePointAt(2));
+          }
+          if (length == 4) {
+            return exports.$stringAllocate1_4(s.codePointAt(0), s.codePointAt(1), s.codePointAt(2), s.codePointAt(3));
+          }
+          if (length == 5) {
+            return exports.$stringAllocate1_5(s.codePointAt(0), s.codePointAt(1), s.codePointAt(2), s.codePointAt(3), s.codePointAt(4));
+          }
+          if (length == 6) {
+            return exports.$stringAllocate1_6(s.codePointAt(0), s.codePointAt(1), s.codePointAt(2), s.codePointAt(3), s.codePointAt(4), s.codePointAt(5));
+          }
+          if (length == 7) {
+            return exports.$stringAllocate1_7(s.codePointAt(0), s.codePointAt(1), s.codePointAt(2), s.codePointAt(3), s.codePointAt(4), s.codePointAt(5), s.codePointAt(6));
+          }
+          if (length == 8) {
+            return exports.$stringAllocate1_8(s.codePointAt(0), s.codePointAt(1), s.codePointAt(2), s.codePointAt(3), s.codePointAt(4), s.codePointAt(5), s.codePointAt(6), s.codePointAt(7));
+          }
+          if (length == 9) {
+            return exports.$stringAllocate1_9(s.codePointAt(0), s.codePointAt(1), s.codePointAt(2), s.codePointAt(3), s.codePointAt(4), s.codePointAt(5), s.codePointAt(6), s.codePointAt(7), s.codePointAt(8));
+          }
+          if (length == 10) {
+            return exports.$stringAllocate1_10(s.codePointAt(0), s.codePointAt(1), s.codePointAt(2), s.codePointAt(3), s.codePointAt(4), s.codePointAt(5), s.codePointAt(6), s.codePointAt(7), s.codePointAt(8), s.codePointAt(9));
+          }
+        }
+        const dartString = exports.$stringAllocate1(length);
+        const write = exports.$stringWrite1;
+        for (let i = 0; i < length; i++) {
+          write(dartString, i, s.codePointAt(i));
+        }
+        return dartString;
+      } else {
+        const dartString = exports.$stringAllocate2(length);
+        const write = exports.$stringWrite2;
+        for (let i = 0; i < length; i++) {
+          write(dartString, i, s.charCodeAt(i));
+        }
+        return dartString;
+      }
+    }
+    ,
+_247: l => new Array(l),
+_251: (o, p) => o[p],
+_255: o => String(o),
+_260: x0 => x0.index,
+_262: x0 => x0.length,
+_264: (x0,x1) => x0[x1],
+_265: (x0,x1) => x0.exec(x1),
+_267: x0 => x0.flags,
+_268: x0 => x0.multiline,
+_269: x0 => x0.ignoreCase,
+_270: x0 => x0.unicode,
+_271: x0 => x0.dotAll,
+_272: (x0,x1) => x0.lastIndex = x1
+    };
+
+    const baseImports = {
+        dart2wasm: dart2wasm,
+
+
+        Math: Math,
+        Date: Date,
+        Object: Object,
+        Array: Array,
+        Reflect: Reflect,
+    };
+
+    const jsStringPolyfill = {
+        "charCodeAt": (s, i) => s.charCodeAt(i),
+        "compare": (s1, s2) => {
+            if (s1 < s2) return -1;
+            if (s1 > s2) return 1;
+            return 0;
+        },
+        "concat": (s1, s2) => s1 + s2,
+        "equals": (s1, s2) => s1 === s2,
+        "fromCharCode": (i) => String.fromCharCode(i),
+        "length": (s) => s?.length||0,
+        "substring": (s, a, b) => s.substring(a, b),
+    };
+
+    dartInstance = await WebAssembly.instantiate(await modulePromise, {
+        ...baseImports,
+        ...(await importObjectPromise),
+        "wasm:js-string": jsStringPolyfill,
+    });
+
+    return dartInstance;
+}
+
+// Call the main function for the instantiated module
+// `moduleInstance` is the instantiated dart2wasm module
+// `args` are any arguments that should be passed into the main function.
+export const invoke = (moduleInstance, ...args) => {
+  moduleInstance.exports.$invokeMain(args);
+}
+
+
+export let format;

frontend/src/common/prettier/plugins/dart/dart_fmt_node.js

@@ -0,0 +1,10 @@
+import fs from "node:fs/promises";
+import initAsync from "./dart_fmt.js";
+
+const wasm = new URL("./dart_fmt.wasm", import.meta.url);
+
+export default function __wbg_init(init = fs.readFile(wasm)) {
+	return initAsync(init);
+}
+
+export * from "./dart_fmt.js";

frontend/src/common/prettier/plugins/dart/dart_fmt_vite.js

@@ -0,0 +1,8 @@
+import initAsync from "./dart_fmt.js";
+import wasm from "./dart_fmt.wasm?url";
+
+export default function __wbg_init(input = wasm) {
+	return initAsync(input);
+}
+
+export * from "./dart_fmt.js";

frontend/src/common/prettier/plugins/dart/index.ts

@@ -0,0 +1,148 @@
+/**
+ * Prettier Plugin for Dart formatting using dart_fmt WebAssembly
+ * 
+ * This plugin provides support for formatting Dart files using the dart_fmt WASM implementation.
+ * dart_fmt is the official Dart code formatter integrated into the Dart SDK.
+ */
+import type { Plugin, Parser, Printer } from 'prettier';
+
+// Import the Dart formatter WASM module
+import dartInit, { format } from './dart_fmt_vite.js';
+
+const parserName = 'dart';
+
+// Language configuration
+const languages = [
+    {
+        name: 'Dart',
+        aliases: ['dart'],
+        parsers: [parserName],
+        extensions: ['.dart'],
+        aceMode: 'dart',
+        tmScope: 'source.dart',
+        linguistLanguageId: 103,
+        vscodeLanguageIds: ['dart']
+    }
+];
+
+// Parser configuration
+const dartParser: Parser<string> = {
+    astFormat: parserName,
+    parse: (text: string) => text,
+    locStart: () => 0,
+    locEnd: (node: string) => node.length,
+};
+
+// Initialize Dart WASM module
+let initPromise: Promise<void> | null = null;
+let isInitialized = false;
+
+function initDart(): Promise<void> {
+    if (initPromise) {
+        return initPromise;
+    }
+    
+    initPromise = (async () => {
+        if (!isInitialized) {
+            await dartInit();
+            isInitialized = true;
+        }
+    })();
+    
+    return initPromise;
+}
+
+// Printer configuration
+const dartPrinter: Printer<string> = {
+    print: (path, options) => {
+        try {
+            if (!isInitialized) {
+                console.warn('Dart WASM module not initialized, returning original text');
+                return (path as any).getValue ? (path as any).getValue() : path.node;
+            }
+            
+            const text = (path as any).getValue ? (path as any).getValue() : path.node;
+            const filename = getDartFilename(options.filepath);
+            const config = getDartConfig(options);
+            
+            // Format using dart_fmt (synchronous call)
+            const formatted = format(text, filename, config);
+            
+            return formatted.trim();
+        } catch (error) {
+            console.warn('Dart formatting failed:', error);
+            // Return original text if formatting fails
+            return (path as any).getValue ? (path as any).getValue() : path.node;
+        }
+    },
+};
+
+// Helper function to get appropriate filename for dart_fmt
+function getDartFilename(filepath?: string): string {
+    if (!filepath) {
+        return 'stdin.dart';
+    }
+    
+    const filename = filepath.split(/[/\\]/).pop() || 'main.dart';
+    
+    // Ensure .dart extension
+    if (!filename.endsWith('.dart')) {
+        return 'main.dart';
+    }
+    
+    return filename;
+}
+
+// Helper function to create Dart config from Prettier options
+function getDartConfig(options: any): any {
+    const config: any = {};
+    
+    // Map Prettier options to Dart formatter config
+    if (options.printWidth !== undefined) {
+        config.line_width = options.printWidth;
+    }
+    
+    if (options.endOfLine !== undefined) {
+        config.line_ending = options.endOfLine === 'crlf' ? 'crlf' : 'lf';
+    }
+    
+    // Dart language version (if specified)
+    if (options.dartLanguageVersion !== undefined) {
+        config.language_version = options.dartLanguageVersion;
+    }
+    
+    return config;
+}
+
+// Plugin options
+const options = {
+    dartLanguageVersion: {
+        since: '0.0.1',
+        category: 'Format' as const,
+        type: 'string' as const,
+        default: undefined,
+        description: 'Dart language version (e.g., "3.0", "2.17")'
+    }
+};
+
+// Plugin object
+const dartPlugin: Plugin = {
+    languages,
+    parsers: {
+        [parserName]: dartParser,
+    },
+    printers: {
+        [parserName]: dartPrinter,
+    },
+    options,
+};
+
+// Initialize WASM module when plugin loads
+initDart().catch(error => {
+    console.warn('Failed to initialize Dart WASM module:', error);
+});
+
+export default dartPlugin;
+export { languages };
+export const parsers = dartPlugin.parsers;
+export const printers = dartPlugin.printers;

frontend/src/views/editor/extensions/codeblock/lang-parser/languages.ts

@@ -49,6 +49,7 @@ import groovyPrettierPlugin from "@/common/prettier/plugins/groovy";
 import scalaPrettierPlugin from "@/common/prettier/plugins/scala";
 import clangPrettierPlugin from "@/common/prettier/plugins/clang";
 import pythonPrettierPlugin from "@/common/prettier/plugins/python";
+import dartPrettierPlugin from "@/common/prettier/plugins/dart";
 import * as prettierPluginEstree from "prettier/plugins/estree";
 
 /**
@@ -154,7 +155,10 @@ export const LANGUAGES: LanguageInfo[] = [
         plugins: [groovyPrettierPlugin]
     }),
     new LanguageInfo("ps1", "PowerShell", StreamLanguage.define(powerShell).parser),
-    new LanguageInfo("dart", "Dart", null), // 暂无解析器
+    new LanguageInfo("dart", "Dart", null,{
+        parser: "dart",
+        plugins: [dartPrettierPlugin]
+    }),
     new LanguageInfo("scala", "Scala", StreamLanguage.define(scala).parser,{
         parser: "scala",
         plugins: [scalaPrettierPlugin]