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// Copyright 2011 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_PREPARSE_DATA_H_
#define V8_PREPARSE_DATA_H_
#include "allocation.h"
#include "hashmap.h"
#include "utils-inl.h"
namespace v8 {
namespace internal {
// Abstract interface for preparse data recorder.
class ParserRecorder {
public:
ParserRecorder() { }
virtual ~ParserRecorder() { }
// Logs the scope and some details of a function literal in the source.
virtual void LogFunction(int start,
int end,
int literals,
int properties,
StrictMode strict_mode) = 0;
// Logs an error message and marks the log as containing an error.
// Further logging will be ignored, and ExtractData will return a vector
// representing the error only.
virtual void LogMessage(int start,
int end,
const char* message,
const char* argument_opt,
bool is_reference_error) = 0;
private:
DISALLOW_COPY_AND_ASSIGN(ParserRecorder);
};
class SingletonLogger : public ParserRecorder {
public:
SingletonLogger()
: has_error_(false), start_(-1), end_(-1), is_reference_error_(false) {}
virtual ~SingletonLogger() {}
void Reset() { has_error_ = false; }
virtual void LogFunction(int start,
int end,
int literals,
int properties,
StrictMode strict_mode) {
ASSERT(!has_error_);
start_ = start;
end_ = end;
literals_ = literals;
properties_ = properties;
strict_mode_ = strict_mode;
};
// Logs an error message and marks the log as containing an error.
// Further logging will be ignored, and ExtractData will return a vector
// representing the error only.
virtual void LogMessage(int start,
int end,
const char* message,
const char* argument_opt,
bool is_reference_error) {
if (has_error_) return;
has_error_ = true;
start_ = start;
end_ = end;
message_ = message;
argument_opt_ = argument_opt;
is_reference_error_ = is_reference_error;
}
bool has_error() const { return has_error_; }
int start() const { return start_; }
int end() const { return end_; }
int literals() const {
ASSERT(!has_error_);
return literals_;
}
int properties() const {
ASSERT(!has_error_);
return properties_;
}
StrictMode strict_mode() const {
ASSERT(!has_error_);
return strict_mode_;
}
int is_reference_error() const { return is_reference_error_; }
const char* message() {
ASSERT(has_error_);
return message_;
}
const char* argument_opt() const {
ASSERT(has_error_);
return argument_opt_;
}
private:
bool has_error_;
int start_;
int end_;
// For function entries.
int literals_;
int properties_;
StrictMode strict_mode_;
// For error messages.
const char* message_;
const char* argument_opt_;
bool is_reference_error_;
};
class CompleteParserRecorder : public ParserRecorder {
public:
struct Key {
bool is_one_byte;
Vector<const byte> literal_bytes;
};
CompleteParserRecorder();
virtual ~CompleteParserRecorder() {}
virtual void LogFunction(int start,
int end,
int literals,
int properties,
StrictMode strict_mode) {
function_store_.Add(start);
function_store_.Add(end);
function_store_.Add(literals);
function_store_.Add(properties);
function_store_.Add(strict_mode);
}
// Logs an error message and marks the log as containing an error.
// Further logging will be ignored, and ExtractData will return a vector
// representing the error only.
virtual void LogMessage(int start,
int end,
const char* message,
const char* argument_opt,
bool is_reference_error_);
Vector<unsigned> ExtractData();
private:
bool has_error() {
return static_cast<bool>(preamble_[PreparseDataConstants::kHasErrorOffset]);
}
void WriteString(Vector<const char> str);
// Write a non-negative number to the symbol store.
void WriteNumber(int number);
Collector<unsigned> function_store_;
unsigned preamble_[PreparseDataConstants::kHeaderSize];
#ifdef DEBUG
int prev_start_;
#endif
};
} } // namespace v8::internal.
#endif // V8_PREPARSE_DATA_H_
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