v8/src/func-name-inferrer.cc
kasperl@chromium.org 528eb97b3a Move the function name inferrer code from the AstOptimizer to
the parser in preparation for not using the optimizer when 
using the full codegen. Code covered by existing tests.
Review URL: http://codereview.chromium.org/3141034

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5321 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-08-23 13:26:03 +00:00

91 lines
3.1 KiB
C++

// Copyright 2009 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "v8.h"
#include "ast.h"
#include "func-name-inferrer.h"
namespace v8 {
namespace internal {
void FuncNameInferrer::PushEnclosingName(Handle<String> name) {
// Enclosing name is a name of a constructor function. To check
// that it is really a constructor, we check that it is not empty
// and starts with a capital letter.
if (name->length() > 0 && Runtime::IsUpperCaseChar(name->Get(0))) {
names_stack_.Add(name);
}
}
void FuncNameInferrer::PushLiteralName(Handle<String> name) {
if (IsOpen() && !Heap::prototype_symbol()->Equals(*name)) {
names_stack_.Add(name);
}
}
void FuncNameInferrer::PushVariableName(Handle<String> name) {
if (IsOpen() && !Heap::result_symbol()->Equals(*name)) {
names_stack_.Add(name);
}
}
Handle<String> FuncNameInferrer::MakeNameFromStack() {
if (names_stack_.is_empty()) {
return Factory::empty_string();
} else {
return MakeNameFromStackHelper(1, names_stack_.at(0));
}
}
Handle<String> FuncNameInferrer::MakeNameFromStackHelper(int pos,
Handle<String> prev) {
if (pos >= names_stack_.length()) {
return prev;
} else {
Handle<String> curr = Factory::NewConsString(dot_, names_stack_.at(pos));
return MakeNameFromStackHelper(pos + 1, Factory::NewConsString(prev, curr));
}
}
void FuncNameInferrer::InferFunctionsNames() {
Handle<String> func_name = MakeNameFromStack();
for (int i = 0; i < funcs_to_infer_.length(); ++i) {
funcs_to_infer_[i]->set_inferred_name(func_name);
}
funcs_to_infer_.Rewind(0);
}
} } // namespace v8::internal