[wasm] Compile and Instantiation

src/wasm/wasm-module.cc

 // Copyright 2015 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/base/atomic-utils.h"
 #include "src/macro-assembler.h"
 #include "src/objects.h"
 #include "src/property-descriptor.h"
 #include "src/v8.h"
 
@@ skipping 995 matching lines @@
       Handle<JSArrayBuffer> memory = Handle<JSArrayBuffer>(
           JSArrayBuffer::cast(instance->GetInternalField(kWasmMemArrayBuffer)));
       JSObject::AddProperty(exports_object, name, memory, READ_ONLY);
     }
   }
   return true;
 }
 
 }  // namespace
 
-MaybeHandle<FixedArray> WasmModule::CompileFunctions(Isolate* isolate) const {
+MaybeHandle<FixedArray> WasmModule::CompileFunctions(
+    Isolate* isolate, ErrorThrower* thrower) const {
   Factory* factory = isolate->factory();
-  ErrorThrower thrower(isolate, "WasmModule::CompileFunctions()");
 
   MaybeHandle<FixedArray> nothing;
 
   WasmModuleInstance temp_instance_for_compilation(this);
   temp_instance_for_compilation.context = isolate->native_context();
   temp_instance_for_compilation.mem_size = GetMinModuleMemSize(this);
   temp_instance_for_compilation.mem_start = nullptr;
   temp_instance_for_compilation.globals_start = nullptr;
 
   MaybeHandle<FixedArray> indirect_table = BuildFunctionTable(isolate, this);
@@ skipping 16 matching lines @@
 
   temp_instance_for_compilation.import_code.resize(import_table.size());
   for (uint32_t i = 0; i < import_table.size(); ++i) {
     temp_instance_for_compilation.import_code[i] =
         CreatePlaceholder(factory, i, Code::WASM_TO_JS_FUNCTION);
   }
   isolate->counters()->wasm_functions_per_module()->AddSample(
       static_cast<int>(functions.size()));
   if (FLAG_wasm_num_compilation_tasks != 0) {
     CompileInParallel(isolate, this,
-                      temp_instance_for_compilation.function_code, &thrower,
+                      temp_instance_for_compilation.function_code, thrower,
                       &module_env);
   } else {
     CompileSequentially(isolate, this,
-                        temp_instance_for_compilation.function_code, &thrower,
+                        temp_instance_for_compilation.function_code, thrower,
                         &module_env);
   }
-  if (thrower.error()) return nothing;
+  if (thrower->error()) return nothing;
 
   // At this point, compilation has completed. Update the code table.
   for (size_t i = FLAG_skip_compiling_wasm_funcs;
        i < temp_instance_for_compilation.function_code.size(); ++i) {
     Code* code = *temp_instance_for_compilation.function_code[i];
     compiled_functions->set(static_cast<int>(i), code);
   }
 
   // Create the compiled module object, and populate with compiled functions
   // and information needed at instantiation time. This object needs to be
@@ skipping 19 matching lines @@
     for (int i = 0; i < export_size; ++i) {
       Handle<FixedArray> export_metadata =
           factory->NewFixedArray(kWasmExportMetadataTableSize, TENURED);
       const WasmExport& exp = export_table[i];
       WasmName str = GetName(exp.name_offset, exp.name_length);
       Handle<String> name = factory->InternalizeUtf8String(str);
       Handle<Code> code =
           temp_instance_for_compilation.function_code[exp.func_index];
       Handle<Code> export_code = compiler::CompileJSToWasmWrapper(
           isolate, &module_env, code, exp.func_index);
-      if (thrower.error()) return nothing;
+      if (thrower->error()) return nothing;
       export_metadata->set(kExportCode, *export_code);
       export_metadata->set(kExportName, *name);
       export_metadata->set(
           kExportArity, Smi::FromInt(static_cast<int>(
                             functions[exp.func_index].sig->parameter_count())));
       export_metadata->set(kExportedFunctionIndex,
                            Smi::FromInt(static_cast<int>(exp.func_index)));
       exports->set(i, *export_metadata);
       if (exp.func_index == start_function_index) {
         startup_fct = export_code;
@@ skipping 389 matching lines @@
   }
 
   if (module->import_table.size() > 0) {
     thrower.Error("Not supported: module has imports.");
   }
   if (module->export_table.size() == 0) {
     thrower.Error("Not supported: module has no exports.");
   }
 
   if (thrower.error()) return -1;
-  MaybeHandle<FixedArray> compiled_module = module->CompileFunctions(isolate);
+  MaybeHandle<FixedArray> compiled_module =
+      module->CompileFunctions(isolate, &thrower);
 
   if (compiled_module.is_null()) return -1;
   Handle<JSObject> instance =
       WasmModule::Instantiate(isolate, compiled_module.ToHandleChecked(),
                               Handle<JSReceiver>::null(),
                               Handle<JSArrayBuffer>::null())
           .ToHandleChecked();
 
   Handle<Name> exports = isolate->factory()->InternalizeUtf8String("exports");
   Handle<JSObject> exports_object = Handle<JSObject>::cast(
@@ skipping 24 matching lines @@
     return static_cast<int32_t>(HeapNumber::cast(*result)->value());
   }
   thrower.Error("WASM.compileRun() failed: Return value should be number");
   return -1;
 }
 
 }  // namespace testing
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8