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593c8f8de3
The debugger can now correctly break on exceptions and show the corresponding line in the inspector. It correctly understands which scripts are internal to sky and does not pause during them. There is still a ton to make work here (including stacktraces which I have not tested), but basic functionality seems to work. The current implementation is not smart enough to unpause the inspector when the frontend disconnects. BUG=434510,434513 R=abarth@chromium.org Review URL: https://codereview.chromium.org/727593004
108 lines
4.3 KiB
C++
108 lines
4.3 KiB
C++
/*
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* Copyright (C) 2004, 2008, 2009 Apple Inc. All rights reserved.
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* Copyright (C) 2008 Collabora Ltd.
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* Copyright (C) 2011 Peter Varga (pvarga@webkit.org), University of Szeged
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* Copyright (C) 2013 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "bindings/core/v8/ScriptRegexp.h"
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#include "bindings/core/v8/V8Binding.h"
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#include "bindings/core/v8/V8PerIsolateData.h"
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#include "bindings/core/v8/V8ScriptRunner.h"
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#include "platform/ScriptForbiddenScope.h"
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namespace blink {
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ScriptRegexp::ScriptRegexp(const String& pattern, TextCaseSensitivity caseSensitivity, MultilineMode multilineMode)
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{
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v8::Isolate* isolate = v8::Isolate::GetCurrent();
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v8::HandleScope handleScope(isolate);
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v8::Context::Scope contextScope(V8PerIsolateData::from(isolate)->ensureScriptRegexpContext());
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v8::TryCatch tryCatch;
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unsigned flags = v8::RegExp::kNone;
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if (caseSensitivity == TextCaseInsensitive)
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flags |= v8::RegExp::kIgnoreCase;
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if (multilineMode == MultilineEnabled)
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flags |= v8::RegExp::kMultiline;
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v8::Local<v8::RegExp> regex = v8::RegExp::New(v8String(isolate, pattern), static_cast<v8::RegExp::Flags>(flags));
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// If the regex failed to compile we'll get an empty handle.
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if (!regex.IsEmpty())
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m_regex.set(isolate, regex);
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}
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int ScriptRegexp::match(const String& string, int startFrom, int* matchLength) const
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{
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if (matchLength)
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*matchLength = 0;
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if (m_regex.isEmpty() || string.isNull())
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return -1;
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// v8 strings are limited to int.
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if (string.length() > INT_MAX)
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return -1;
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ScriptForbiddenScope::AllowUserAgentScript allowScript;
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v8::Isolate* isolate = v8::Isolate::GetCurrent();
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v8::HandleScope handleScope(isolate);
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v8::Context::Scope contextScope(V8PerIsolateData::from(isolate)->ensureScriptRegexpContext());
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v8::TryCatch tryCatch;
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v8::Local<v8::RegExp> regex = m_regex.newLocal(isolate);
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v8::Local<v8::Function> exec = regex->Get(v8AtomicString(isolate, "exec")).As<v8::Function>();
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v8::Handle<v8::Value> argv[] = { v8String(isolate, string.substring(startFrom)) };
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v8::Local<v8::Value> returnValue = V8ScriptRunner::callInternalFunction(exec, regex, WTF_ARRAY_LENGTH(argv), argv, isolate);
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if (tryCatch.HasCaught())
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return -1;
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// RegExp#exec returns null if there's no match, otherwise it returns an
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// Array of strings with the first being the whole match string and others
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// being subgroups. The Array also has some random properties tacked on like
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// "index" which is the offset of the match.
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//
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// https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/RegExp/exec
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ASSERT(!returnValue.IsEmpty());
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if (!returnValue->IsArray())
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return -1;
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v8::Local<v8::Array> result = returnValue.As<v8::Array>();
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int matchOffset = result->Get(v8AtomicString(isolate, "index"))->ToInt32()->Value();
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if (matchLength) {
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v8::Local<v8::String> match = result->Get(0).As<v8::String>();
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*matchLength = match->Length();
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}
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return matchOffset + startFrom;
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}
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} // namespace blink
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