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