feat: add vscode binding for the solidity dap

toolchains/solidity/extension/src/debugger.ts

@@ -0,0 +1,50 @@
+import * as path from 'path';
+import {
+    debug,
+    window,
+    DebugAdapterDescriptorFactory,
+    DebugSession,
+    DebugAdapterExecutable,
+    DebugAdapterDescriptor,
+    ExtensionContext,
+    OutputChannel,
+    ProviderResult,
+  } from 'vscode';
+import * as os from 'os';
+
+let outputChannel: OutputChannel;
+
+export function registerDebugger(context: ExtensionContext) {
+  outputChannel = window.createOutputChannel('SolidityDebugger');
+
+  context.subscriptions.push(
+    debug.registerDebugAdapterDescriptorFactory('solidity', new SolidityDebugAdapterDescriptorFactory(context)),
+    debug.onDidTerminateDebugSession(() => {
+      outputChannel.appendLine(`Debug session ended.`);
+    }),
+  );
+}
+
+export class SolidityDebugAdapterDescriptorFactory implements DebugAdapterDescriptorFactory {
+  context: ExtensionContext;
+
+  constructor(context: ExtensionContext) {
+    this.context = context;
+  }
+
+  async createDebugAdapterDescriptor(
+    _session: DebugSession,
+    _executable: DebugAdapterExecutable,
+  ): Promise<ProviderResult<DebugAdapterDescriptor>> {
+    const serverBinary = this.context.asAbsolutePath(
+      path.join('dist',
+      os.platform().startsWith("win") ? 'foundry-dap-server.exe' : 'foundry-dap-server')
+    );
+
+    if (!serverBinary) {
+      throw new Error('Could not find Solidity debugger server');
+    }
+
+    return new DebugAdapterExecutable(serverBinary, []);
+  }
+}

toolchains/solidity/extension/src/extension.ts

@@ -9,6 +9,7 @@ import { createTestsPositionsClient } from './tests-positions';
 import { registerGasEstimation } from './gas-estimation';
 import registerForgeFmtLinter from "./fmt-wrapper";
 import { TestManager } from './tests/test-manager';
+import { registerDebugger } from './debugger';
 
 let slitherClient: LanguageClient;
 let linterClient: LanguageClient;
@@ -28,6 +29,7 @@ export async function activate(context: ExtensionContext) {
 	context.subscriptions.push(linterClient, foundryCompilerClient, slitherClient, testsPositionsClient, testManager.testController);
 
 	registerForgeFmtLinter(context);
+	registerDebugger(context);
 	registerGasEstimation();
 
 	const folders = workspace.workspaceFolders;