[modules] AST and parser rework.

src/asmjs/asm-wasm-builder.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/v8.h"
 
 // Required to get M_E etc. in MSVC.
 #if defined(_WIN32)
 #define _USE_MATH_DEFINES
 #endif
@@ skipping 117 matching lines @@
     DCHECK_NULL(current_function_builder_);
     uint32_t index = LookupOrInsertFunction(decl->proxy()->var());
     current_function_builder_ = builder_->FunctionAt(index);
     scope_ = kFuncScope;
     RECURSE(Visit(decl->fun()));
     scope_ = kModuleScope;
     current_function_builder_ = nullptr;
     local_variables_.Clear();
   }
 
-  void VisitImportDeclaration(ImportDeclaration* decl) override {}
-
   void VisitStatements(ZoneList<Statement*>* stmts) override {
     for (int i = 0; i < stmts->length(); ++i) {
       Statement* stmt = stmts->at(i);
       ExpressionStatement* e = stmt->AsExpressionStatement();
       if (e != nullptr && e->expression()->IsUndefinedLiteral()) {
         continue;
       }
       RECURSE(Visit(stmt));
       if (stmt->IsJump()) break;
     }
@@ skipping 1626 matching lines @@
   AsmWasmBuilderImpl impl(isolate_, zone_, literal_, typer_);
   impl.Build();
   *foreign_args = impl.GetForeignArgs();
   ZoneBuffer* buffer = new (zone_) ZoneBuffer(zone_);
   impl.builder_->WriteTo(*buffer);
   return buffer;
 }
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8