2144dc2d0f
V8EXPORT is defined in each header of V8 public API and the definitions already have some slight discrepancies. This CL makes all headers use the same definition in v8.h BUG=None R=svenpanne@chromium.org Review URL: https://codereview.chromium.org/22363003 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16078 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
85 lines
3.3 KiB
C++
85 lines
3.3 KiB
C++
// Copyright 2011 the V8 project authors. All rights reserved.
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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 are
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// met:
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//
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// * 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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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY 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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#ifndef PREPARSER_H
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#define PREPARSER_H
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#include "v8.h"
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#include "v8stdint.h"
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namespace v8 {
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// The result of preparsing is either a stack overflow error, or an opaque
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// blob of data that can be passed back into the parser.
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class V8_EXPORT PreParserData {
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public:
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PreParserData(size_t size, const uint8_t* data)
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: data_(data), size_(size) { }
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// Create a PreParserData value where stack_overflow reports true.
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static PreParserData StackOverflow() { return PreParserData(0, NULL); }
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// Whether the pre-parser stopped due to a stack overflow.
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// If this is the case, size() and data() should not be used.
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bool stack_overflow() { return size_ == 0u; }
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// The size of the data in bytes.
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size_t size() const { return size_; }
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// Pointer to the data.
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const uint8_t* data() const { return data_; }
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private:
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const uint8_t* const data_;
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const size_t size_;
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};
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// Interface for a stream of Unicode characters.
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class V8_EXPORT UnicodeInputStream { // NOLINT - V8_EXPORT is not a class name.
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public:
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virtual ~UnicodeInputStream();
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// Returns the next Unicode code-point in the input, or a negative value when
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// there is no more input in the stream.
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virtual int32_t Next() = 0;
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};
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// Preparse a JavaScript program. The source code is provided as a
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// UnicodeInputStream. The max_stack_size limits the amount of stack
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// space that the preparser is allowed to use. If the preparser uses
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// more stack space than the limit provided, the result's stack_overflow()
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// method will return true. Otherwise the result contains preparser
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// data that can be used by the V8 parser to speed up parsing.
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PreParserData V8_EXPORT Preparse(UnicodeInputStream* input,
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size_t max_stack_size);
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} // namespace v8.
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#endif // PREPARSER_H
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