[inspector] Introduce debug::WasmScript

test/inspector/debugger/wasm-scripts.js

+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --expose-wasm
+
+load('test/mjsunit/wasm/wasm-constants.js');
+load('test/mjsunit/wasm/wasm-module-builder.js');
+
+// Add two empty functions. Both should be registered as individual scripts at
+// module creation time.
+var builder = new WasmModuleBuilder();
+builder.addFunction('nopFunction', kSig_v_v).addBody([kExprNop]);
+builder.addFunction('main', kSig_v_v)
+    .addBody([kExprBlock, kAstStmt, kExprI32Const, 2, kExprDrop, kExprEnd])
+    .exportAs('main');
+var module_bytes = builder.toArray();
+
+function testFunction(bytes) {
+  var buffer = new ArrayBuffer(bytes.length);
+  var view = new Uint8Array(buffer);
+  for (var i = 0; i < bytes.length; i++) {
+    view[i] = bytes[i] | 0;
+  }
+
+  // Compilation triggers registration of wasm scripts.
+  new WebAssembly.Module(buffer);
+}
+
+InspectorTest.addScriptWithUrl(
+    testFunction.toString(), 'v8://test/testFunction');
+InspectorTest.addScript('var module_bytes = ' + JSON.stringify(module_bytes));
+
+Protocol.Debugger.enable();
+Protocol.Debugger.onScriptParsed(handleScriptParsed);
+InspectorTest.log(
+    'Check that inspector gets two wasm scripts at module creation time.');
+Protocol.Runtime
+    .evaluate({
+      'expression': '//# sourceURL=v8://test/runTestRunction\n' +
+          'testFunction(module_bytes)'
+    })
+    .then(checkFinished);
+
+var num_scripts = 0;
+var missing_sources = 0;
+
+function checkFinished() {
+  if (missing_sources == 0)
+    InspectorTest.completeTest();
+}
+
+function handleScriptParsed(messageObject)
+{
+  var url = messageObject.params.url;
+  InspectorTest.log("Script #" + num_scripts + " parsed. URL: " + url);
+  ++num_scripts;
+
+  if (url.startsWith("wasm://")) {
+    ++missing_sources;
+    function dumpScriptSource(message) {
+      InspectorTest.log("Source for " + url + ":");
+      InspectorTest.log(message.result.scriptSource);
+      --missing_sources;
+    }
+
+    Protocol.Debugger.getScriptSource({scriptId: messageObject.params.scriptId})
+        .then(dumpScriptSource.bind(null))
+        .then(checkFinished);
+  }
+}