[inspector] Introduce debug::WasmScript

src/api.cc

 // Copyright 2012 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.
 
 #include "src/api.h"
 
 #include <string.h>  // For memcpy, strlen.
 #ifdef V8_USE_ADDRESS_SANITIZER
 #include <sanitizer/asan_interface.h>
 #endif  // V8_USE_ADDRESS_SANITIZER
@@ skipping 9083 matching lines @@
   }
   i::Handle<i::Script> script_obj = i::Handle<i::Script>::cast(script_value);
   if (script_obj->type() != i::Script::TYPE_NORMAL &&
       script_obj->type() != i::Script::TYPE_WASM) {
     return MaybeLocal<Script>();
   }
   return ToApiHandle<DebugInterface::Script>(
       handle_scope.CloseAndEscape(script_obj));
 }
 
+DebugInterface::WasmScript* DebugInterface::WasmScript::Cast(
+    DebugInterface::Script* script) {
+  CHECK(script->IsWasm());
+  return static_cast<WasmScript*>(script);
+}
+
+int DebugInterface::WasmScript::NumFunction() const {

[titzer, 2016/12/02 09:52:36]

NumFunctions?

[Clemens Hammacher, 2016/12/02 10:38:09]

Doh! Thanks.

+  i::DisallowHeapAllocation no_gc;
+  i::Handle<i::Script> script = Utils::OpenHandle(this);
+  DCHECK_EQ(i::Script::TYPE_WASM, script->type());
+  i::WasmCompiledModule* compiled_module =
+      i::WasmCompiledModule::cast(script->wasm_compiled_module());
+  DCHECK_GE(i::kMaxInt, compiled_module->module()->functions.size());
+  return static_cast<int>(compiled_module->module()->functions.size());
+}
+
+int DebugInterface::WasmScript::NumImportedFunction() const {
+  i::DisallowHeapAllocation no_gc;
+  i::Handle<i::Script> script = Utils::OpenHandle(this);
+  DCHECK_EQ(i::Script::TYPE_WASM, script->type());
+  i::WasmCompiledModule* compiled_module =
+      i::WasmCompiledModule::cast(script->wasm_compiled_module());
+  DCHECK_GE(i::kMaxInt, compiled_module->module()->num_imported_functions);
+  return static_cast<int>(compiled_module->module()->num_imported_functions);
+}
+
+std::pair<std::string, std::vector<std::tuple<uint32_t, int, int>>>
+DebugInterface::WasmScript::DisassembleFunction(int function_index) {
+  i::DisallowHeapAllocation no_gc;
+  i::Handle<i::Script> script = Utils::OpenHandle(this);
+  DCHECK_EQ(i::Script::TYPE_WASM, script->type());
+  i::WasmCompiledModule* compiled_module =
+      i::WasmCompiledModule::cast(script->wasm_compiled_module());
+  return compiled_module->DisassembleFunction(function_index);
+}
+
 DebugInterface::Location::Location(int lineNumber, int columnNumber)
     : lineNumber_(lineNumber), columnNumber_(columnNumber) {
   CHECK(lineNumber >= 0);
   CHECK(columnNumber >= 0);
 }
 
 DebugInterface::Location::Location() : lineNumber_(-1), columnNumber_(-1) {}
 
 int DebugInterface::Location::GetLineNumber() const {
   CHECK(lineNumber_ >= 0);
@@ skipping 25 matching lines @@
       if (script->type() != i::Script::TYPE_NORMAL) continue;
       if (script->HasValidSource()) {
         i::HandleScope handle_scope(isolate);
         i::Handle<i::Script> script_handle(script, isolate);
         scripts.Append(ToApiHandle<Script>(script_handle));
       }
     }
   }
 }
 
-std::pair<std::string, std::vector<std::tuple<uint32_t, int, int>>>
-DebugInterface::DisassembleWasmFunction(Isolate* v8_isolate,
-                                        Local<Object> v8_script,
-                                        int function_index) {
-  i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate);
-  if (v8_script.IsEmpty()) return {};
-  i::Handle<i::Object> script_wrapper = Utils::OpenHandle(*v8_script);
-  if (!script_wrapper->IsJSValue()) return {};
-  i::Handle<i::Object> script_obj(
-      i::Handle<i::JSValue>::cast(script_wrapper)->value(), isolate);
-  if (!script_obj->IsScript()) return {};
-  i::Handle<i::Script> script = i::Handle<i::Script>::cast(script_obj);
-  if (script->type() != i::Script::TYPE_WASM) return {};
-  i::Handle<i::WasmCompiledModule> compiled_module(
-      i::WasmCompiledModule::cast(script->wasm_compiled_module()), isolate);
-  return compiled_module->DisassembleFunction(function_index);
-}
-
 MaybeLocal<UnboundScript> DebugInterface::CompileInspectorScript(
     Isolate* v8_isolate, Local<String> source) {
   i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate);
   PREPARE_FOR_DEBUG_INTERFACE_EXECUTION_WITH_ISOLATE(isolate, UnboundScript);
   i::ScriptData* script_data = NULL;
   i::Handle<i::String> str = Utils::OpenHandle(*source);
   i::Handle<i::SharedFunctionInfo> result;
   {
     ScriptOriginOptions origin_options;
     result = i::Compiler::GetSharedFunctionInfoForScript(
@@ skipping 687 matching lines @@
   Address callback_address =
       reinterpret_cast<Address>(reinterpret_cast<intptr_t>(callback));
   VMState<EXTERNAL> state(isolate);
   ExternalCallbackScope call_scope(isolate, callback_address);
   callback(info);
 }
 
 
 }  // namespace internal
 }  // namespace v8