kasperl@chromium.org | d1e3e72 | 2009-04-14 13:38:25 +0000 | [diff] [blame] | 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 | |
kasperl@chromium.org | 71affb5 | 2009-05-26 05:44:31 +0000 | [diff] [blame] | 33 | namespace v8 { |
| 34 | namespace internal { |
kasperl@chromium.org | d1e3e72 | 2009-04-14 13:38:25 +0000 | [diff] [blame] | 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 | |
ricow@chromium.org | 65fae84 | 2010-08-25 15:26:24 +0000 | [diff] [blame] | 47 | void FuncNameInferrer::PushLiteralName(Handle<String> name) { |
| 48 | if (IsOpen() && !Heap::prototype_symbol()->Equals(*name)) { |
| 49 | names_stack_.Add(name); |
| 50 | } |
| 51 | } |
| 52 | |
| 53 | |
| 54 | void FuncNameInferrer::PushVariableName(Handle<String> name) { |
| 55 | if (IsOpen() && !Heap::result_symbol()->Equals(*name)) { |
| 56 | names_stack_.Add(name); |
| 57 | } |
| 58 | } |
| 59 | |
| 60 | |
kasperl@chromium.org | d1e3e72 | 2009-04-14 13:38:25 +0000 | [diff] [blame] | 61 | Handle<String> FuncNameInferrer::MakeNameFromStack() { |
| 62 | if (names_stack_.is_empty()) { |
| 63 | return Factory::empty_string(); |
| 64 | } else { |
| 65 | return MakeNameFromStackHelper(1, names_stack_.at(0)); |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | |
| 70 | Handle<String> FuncNameInferrer::MakeNameFromStackHelper(int pos, |
| 71 | Handle<String> prev) { |
| 72 | if (pos >= names_stack_.length()) { |
| 73 | return prev; |
| 74 | } else { |
| 75 | Handle<String> curr = Factory::NewConsString(dot_, names_stack_.at(pos)); |
| 76 | return MakeNameFromStackHelper(pos + 1, Factory::NewConsString(prev, curr)); |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 81 | void FuncNameInferrer::InferFunctionsNames() { |
| 82 | Handle<String> func_name = MakeNameFromStack(); |
| 83 | for (int i = 0; i < funcs_to_infer_.length(); ++i) { |
| 84 | funcs_to_infer_[i]->set_inferred_name(func_name); |
kasperl@chromium.org | d1e3e72 | 2009-04-14 13:38:25 +0000 | [diff] [blame] | 85 | } |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 86 | funcs_to_infer_.Rewind(0); |
kasperl@chromium.org | d1e3e72 | 2009-04-14 13:38:25 +0000 | [diff] [blame] | 87 | } |
| 88 | |
| 89 | |
| 90 | } } // namespace v8::internal |