Hook up compiler dispatcher jobs to lazy parser.

test/unittests/compiler-dispatcher/compiler-dispatcher-job-unittest.cc

 // 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.
 
 #include <memory>
 
+#include "include/v8.h"
+#include "src/api.h"
+#include "src/ast/scopes.h"
 #include "src/compiler-dispatcher/compiler-dispatcher-job.h"
 #include "src/flags.h"
 #include "src/isolate-inl.h"
+#include "src/parsing/parser.h"
 #include "test/unittests/test-utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace v8 {
 namespace internal {
 
 typedef TestWithContext CompilerDispatcherJobTest;
 
 namespace {
 
-const char test_script[] = "x*x";
+const char test_script[] = "(x) { x*x; }";
 
 class ScriptResource : public v8::String::ExternalOneByteStringResource {
  public:
   ScriptResource(const char* data, size_t length)
       : data_(data), length_(length) {}
   ~ScriptResource() override = default;
 
   const char* data() const override { return data_; }
   size_t length() const override { return length_; }
 
@@ skipping 70 matching lines @@
 
   job->PrepareToParseOnMainThread();
   job->Parse();
   job->FinalizeParsingOnMainThread();
 
   ASSERT_TRUE(job->status() == CompileJobStatus::kFailed);
   ASSERT_FALSE(i_isolate()->has_pending_exception());
   job->ReportErrorsOnMainThread();
   ASSERT_TRUE(job->status() == CompileJobStatus::kDone);
   ASSERT_TRUE(i_isolate()->has_pending_exception());
+  i_isolate()->clear_pending_exception();
+}
+
+TEST_F(CompilerDispatcherJobTest, ScopeChain) {
+  const char script[] =
+      "function g() { var g = 1; function f(x) { return x * g }; return f; } "
+      "g();";
+  Handle<JSFunction> f = Handle<JSFunction>::cast(Utils::OpenHandle(
+      *v8::Script::Compile(isolate()->GetCurrentContext(),
+                           v8::String::NewFromUtf8(isolate(), script,
+                                                   v8::NewStringType::kNormal)
+                               .ToLocalChecked())
+           .ToLocalChecked()
+           ->Run(isolate()->GetCurrentContext())
+           .ToLocalChecked()));
+
+  std::unique_ptr<CompilerDispatcherJob> job(
+      new CompilerDispatcherJob(i_isolate(), f, FLAG_stack_size));
+
+  job->PrepareToParseOnMainThread();
+  job->Parse();
+  job->FinalizeParsingOnMainThread();
+  ASSERT_TRUE(job->status() == CompileJobStatus::kReadyToCompile);
+
+  const AstRawString* var_x =
+      job->parse_info_->ast_value_factory()->GetOneByteString("x");
+  Variable* var = job->parse_info_->literal()->scope()->Lookup(var_x);
+  ASSERT_TRUE(var);
+  ASSERT_TRUE(var->IsUnallocated());
+
+  const AstRawString* var_g =
+      job->parse_info_->ast_value_factory()->GetOneByteString("g");
+  var = job->parse_info_->literal()->scope()->Lookup(var_g);
+  ASSERT_TRUE(var);
+  ASSERT_TRUE(var->IsContextSlot());
+
+  job->ResetOnMainThread();
+  ASSERT_TRUE(job->status() == CompileJobStatus::kInitial);
 }
 
 }  // namespace internal
 }  // namespace v8