feat: 新增 iverilog 工具支持

- api.ts: 新增 IverilogArgs 类型定义
- toolExecutor.ts: 新增 executeIverilog 函数，支持直接执行 iverilog 命令

src/services/toolExecutor.ts

@@ -25,6 +25,7 @@ import type {
   FileDeleteArgs,
   FileListArgs,
   SyntaxCheckArgs,
+  IverilogArgs,
   SimulationArgs,
   WaveformSummaryArgs,
   KnowledgeSaveArgs,
@@ -75,6 +76,9 @@ export async function executeToolCall(
       case 'syntax_check':
         resultText = await executeSyntaxCheck(args as unknown as SyntaxCheckArgs, context);
         break;
+      case 'iverilog':
+        resultText = await executeIverilog(args as unknown as IverilogArgs, context);
+        break;
       case 'simulation':
         resultText = await executeSimulation(args as unknown as SimulationArgs, context);
         break;
@@ -270,6 +274,71 @@ async function executeSyntaxCheck(
   }
 }
 
+/**
+ * 执行 iverilog 工具
+ * 直接执行 iverilog 命令
+ */
+async function executeIverilog(
+  args: IverilogArgs,
+  context: ToolExecutorContext
+): Promise<string> {
+  // 检查 iverilog 是否可用
+  const iverilogCheck = await checkIverilogAvailable(context.extensionPath);
+  if (!iverilogCheck.available) {
+    throw new Error(`iverilog 不可用: ${iverilogCheck.message}`);
+  }
+
+  // 获取工作目录
+  const workspaceFolders = vscode.workspace.workspaceFolders;
+  if (!workspaceFolders || workspaceFolders.length === 0) {
+    throw new Error('没有打开的工作区');
+  }
+  const projectPath = workspaceFolders[0].uri.fsPath;
+  const workDir = args.workDir
+    ? path.join(projectPath, args.workDir)
+    : projectPath;
+
+  // 解析参数
+  const iverilogPath = getIverilogPath(context.extensionPath);
+  const cmdArgs = args.args.split(/\s+/).filter(a => a.length > 0);
+
+  const { spawn } = require('child_process');
+
+  return new Promise((resolve, reject) => {
+    const child = spawn(iverilogPath, cmdArgs, {
+      cwd: workDir,
+      env: {
+        ...process.env,
+        IVERILOG_ROOT: path.join(context.extensionPath, 'tools', 'iverilog')
+      }
+    });
+
+    let stdout = '';
+    let stderr = '';
+
+    child.stdout.on('data', (data: Buffer) => {
+      stdout += data.toString();
+    });
+
+    child.stderr.on('data', (data: Buffer) => {
+      stderr += data.toString();
+    });
+
+    child.on('close', (code: number) => {
+      const output = stderr || stdout || '(无输出)';
+      if (code === 0) {
+        resolve(`执行成功\n${output}`);
+      } else {
+        resolve(`执行失败 (exit code: ${code})\n${output}`);
+      }
+    });
+
+    child.on('error', (error: Error) => {
+      reject(error);
+    });
+  });
+}
+
 /**
  * 执行 simulation 工具
  */

src/types/api.ts

@@ -518,6 +518,12 @@ export interface SyntaxCheckArgs {
   code: string;
 }
 
+/** iverilog 工具参数 */
+export interface IverilogArgs {
+  args: string;
+  workDir?: string;
+}
+
 /** simulation 工具参数 */
 export interface SimulationArgs {
   rtlPath: string;
@@ -566,6 +572,7 @@ export type ToolArgs =
   | FileDeleteArgs
   | FileListArgs
   | SyntaxCheckArgs
+  | IverilogArgs
   | SimulationArgs
   | WaveformSummaryArgs
   | WaveformTraceArgs