func-name-inferrer.cc revision a7e24c173cf37484693b9abb38e494fa7bd7baeb
1a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Copyright 2009 the V8 project authors. All rights reserved. 2a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Redistribution and use in source and binary forms, with or without 3a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// modification, are permitted provided that the following conditions are 4a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// met: 5a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// 6a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Redistributions of source code must retain the above copyright 7a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// notice, this list of conditions and the following disclaimer. 8a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Redistributions in binary form must reproduce the above 9a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// copyright notice, this list of conditions and the following 10a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// disclaimer in the documentation and/or other materials provided 11a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// with the distribution. 12a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Neither the name of Google Inc. nor the names of its 13a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// contributors may be used to endorse or promote products derived 14a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// from this software without specific prior written permission. 15a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// 16a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 28a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "v8.h" 29a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 30a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "ast.h" 31a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "func-name-inferrer.h" 32a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 33a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blocknamespace v8 { 34a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blocknamespace internal { 35a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 36a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 37a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid FuncNameInferrer::PushEnclosingName(Handle<String> name) { 38a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Enclosing name is a name of a constructor function. To check 39a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // that it is really a constructor, we check that it is not empty 40a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // and starts with a capital letter. 41a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (name->length() > 0 && Runtime::IsUpperCaseChar(name->Get(0))) { 42a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block names_stack_.Add(name); 43a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 44a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 45a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 46a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 47a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockHandle<String> FuncNameInferrer::MakeNameFromStack() { 48a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (names_stack_.is_empty()) { 49a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return Factory::empty_string(); 50a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } else { 51a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return MakeNameFromStackHelper(1, names_stack_.at(0)); 52a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 53a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 54a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 55a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 56a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockHandle<String> FuncNameInferrer::MakeNameFromStackHelper(int pos, 57a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<String> prev) { 58a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (pos >= names_stack_.length()) { 59a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return prev; 60a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } else { 61a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<String> curr = Factory::NewConsString(dot_, names_stack_.at(pos)); 62a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return MakeNameFromStackHelper(pos + 1, Factory::NewConsString(prev, curr)); 63a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 64a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 65a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 66a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 67a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid FuncNameInferrer::InferFunctionsNames() { 68a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<String> func_name = MakeNameFromStack(); 69a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block for (int i = 0; i < funcs_to_infer_.length(); ++i) { 70a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block funcs_to_infer_[i]->set_inferred_name(func_name); 71a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 72a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block funcs_to_infer_.Rewind(0); 73a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 74a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 75a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 76a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} } // namespace v8::internal 77