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Diffstat (limited to 'src/3rdparty/v8/src/func-name-inferrer.cc')
-rw-r--r-- | src/3rdparty/v8/src/func-name-inferrer.cc | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/src/3rdparty/v8/src/func-name-inferrer.cc b/src/3rdparty/v8/src/func-name-inferrer.cc new file mode 100644 index 0000000..c094251 --- /dev/null +++ b/src/3rdparty/v8/src/func-name-inferrer.cc @@ -0,0 +1,91 @@ +// 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( + Isolate::Current()->runtime_state(), 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 |