[inspector] Split V8DebuggerScript implementation for wasm

test/inspector/debugger/wasm-get-breakable-locations.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');
+
+var builder = new WasmModuleBuilder();
+
+var imported_idx = builder.addImport('func', kSig_v_v);
+
+var func_idx = builder.addFunction('helper', kSig_v_v)
+    .addLocals({i32_count: 1})
+    .addBody([
+        kExprNop,
+        kExprI32Const, 12,
+        kExprSetLocal, 0,
+        kExprCallFunction, imported_idx,
+    ]).index;
+
+builder.addFunction('main', kSig_v_i)
+    .addBody([
+        kExprGetLocal, 0,
+        kExprIf, kAstStmt,
+          kExprBlock, kAstStmt,
+            kExprCallFunction, func_idx,
+          kExprEnd,
+        kExprEnd
+    ]).exportAs('main');
+
+var module_bytes = builder.toArray();
+
+function testFunction(bytes) {
+  function call_debugger() {
+    // Call to the debugger to trigger wasm translations for all functions on
+    // the stack.
+    debugger;
+  }
+  var buffer = new ArrayBuffer(bytes.length);
+  var view = new Uint8Array(buffer);
+  for (var i = 0; i < bytes.length; i++) {
+    view[i] = bytes[i] | 0;
+  }
+
+  var module = new WebAssembly.Module(buffer);
+  var instance = new WebAssembly.Instance(module, {'func': call_debugger});
+
+  instance.exports.main(1);
+}
+
+InspectorTest.addScript(testFunction.toString());
+InspectorTest.addScript('var module_bytes = ' + JSON.stringify(module_bytes));
+
+Protocol.Debugger.enable();
+Protocol.Debugger.onScriptParsed(handleScriptParsed);
+InspectorTest.log('Running testFunction...');
+Protocol.Runtime.evaluate({'expression': 'testFunction(module_bytes)'});
+
+var numScripts = 0;
+function handleScriptParsed(messageObject) {

[kozy, 2016/11/30 18:34:37]

Can we just dump this message object and do nothing until we land
getPossibleBreakpoints implementation?

[Clemens Hammacher, 2016/12/02 17:44:13]

Done.

+  var scriptId = messageObject.params.scriptId;
+  var url = messageObject.params.url;
+  InspectorTest.log('Script nr ' + numScripts + ' parsed. URL: ' + url);
+  ++numScripts;
+
+  if (url.startsWith('wasm://')) {
+    InspectorTest.log('This is a wasm script. Requesting breakable locations.');
+    Protocol.Debugger
+        .getPossibleBreakpoints(
+            {start: {lineNumber: 0, columnNumber: 0, scriptId: scriptId}})
+        .then(InspectorTest.logMessage)
+        .then(InspectorTest.completeTest);
+  }
+}