Commit 629725d4 authored by jochen@chromium.org's avatar jochen@chromium.org

Merge v8converions with conversions

BUG=none
R=mstarzinger@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/250793009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21005 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
parent 0521c124
......@@ -29,8 +29,13 @@
#include <limits.h>
#include <cmath>
#include "v8.h"
#include "assert-scope.h"
#include "conversions.h"
#include "conversions-inl.h"
#include "dtoa.h"
#include "factory.h"
#include "list-inl.h"
#include "strtod.h"
#include "utils.h"
......@@ -44,6 +49,47 @@ namespace v8 {
namespace internal {
namespace {
// C++-style iterator adaptor for StringCharacterStream
// (unlike C++ iterators the end-marker has different type).
class StringCharacterStreamIterator {
public:
class EndMarker {};
explicit StringCharacterStreamIterator(StringCharacterStream* stream);
uint16_t operator*() const;
void operator++();
bool operator==(EndMarker const&) const { return end_; }
bool operator!=(EndMarker const& m) const { return !end_; }
private:
StringCharacterStream* const stream_;
uint16_t current_;
bool end_;
};
StringCharacterStreamIterator::StringCharacterStreamIterator(
StringCharacterStream* stream) : stream_(stream) {
++(*this);
}
uint16_t StringCharacterStreamIterator::operator*() const {
return current_;
}
void StringCharacterStreamIterator::operator++() {
end_ = !stream_->HasMore();
if (!end_) {
current_ = stream_->GetNext();
}
}
} // End anonymous namespace.
double StringToDouble(UnicodeCache* unicode_cache,
const char* str, int flags, double empty_string_val) {
// We cast to const uint8_t* here to avoid instantiating the
......@@ -273,7 +319,6 @@ static char* CreateExponentialRepresentation(char* decimal_rep,
}
char* DoubleToExponentialCString(double value, int f) {
const int kMaxDigitsAfterPoint = 20;
// f might be -1 to signal that f was undefined in JavaScript.
......@@ -460,4 +505,22 @@ char* DoubleToRadixCString(double value, int radix) {
return builder.Finalize();
}
double StringToDouble(UnicodeCache* unicode_cache,
String* string,
int flags,
double empty_string_val) {
DisallowHeapAllocation no_gc;
String::FlatContent flat = string->GetFlatContent();
// ECMA-262 section 15.1.2.3, empty string is NaN
if (flat.IsAscii()) {
return StringToDouble(
unicode_cache, flat.ToOneByteVector(), flags, empty_string_val);
} else {
return StringToDouble(
unicode_cache, flat.ToUC16Vector(), flags, empty_string_val);
}
}
} } // namespace v8::internal
......@@ -28,6 +28,11 @@
#ifndef V8_CONVERSIONS_H_
#define V8_CONVERSIONS_H_
#include <limits>
#include "checks.h"
#include "handles.h"
#include "objects.h"
#include "utils.h"
namespace v8 {
......@@ -163,6 +168,77 @@ char* DoubleToExponentialCString(double value, int f);
char* DoubleToPrecisionCString(double value, int f);
char* DoubleToRadixCString(double value, int radix);
static inline bool IsMinusZero(double value) {
static const DoubleRepresentation minus_zero(-0.0);
return DoubleRepresentation(value) == minus_zero;
}
// Integer32 is an integer that can be represented as a signed 32-bit
// integer. It has to be in the range [-2^31, 2^31 - 1].
// We also have to check for negative 0 as it is not an Integer32.
static inline bool IsInt32Double(double value) {
return !IsMinusZero(value) &&
value >= kMinInt &&
value <= kMaxInt &&
value == FastI2D(FastD2I(value));
}
// Convert from Number object to C integer.
inline int32_t NumberToInt32(Object* number) {
if (number->IsSmi()) return Smi::cast(number)->value();
return DoubleToInt32(number->Number());
}
inline uint32_t NumberToUint32(Object* number) {
if (number->IsSmi()) return Smi::cast(number)->value();
return DoubleToUint32(number->Number());
}
double StringToDouble(UnicodeCache* unicode_cache,
String* string,
int flags,
double empty_string_val = 0.0);
inline bool TryNumberToSize(Isolate* isolate,
Object* number, size_t* result) {
SealHandleScope shs(isolate);
if (number->IsSmi()) {
int value = Smi::cast(number)->value();
ASSERT(static_cast<unsigned>(Smi::kMaxValue)
<= std::numeric_limits<size_t>::max());
if (value >= 0) {
*result = static_cast<size_t>(value);
return true;
}
return false;
} else {
ASSERT(number->IsHeapNumber());
double value = HeapNumber::cast(number)->value();
if (value >= 0 &&
value <= std::numeric_limits<size_t>::max()) {
*result = static_cast<size_t>(value);
return true;
} else {
return false;
}
}
}
// Converts a number into size_t.
inline size_t NumberToSize(Isolate* isolate,
Object* number) {
size_t result = 0;
bool is_valid = TryNumberToSize(isolate, number, &result);
CHECK(is_valid);
return result;
}
} } // namespace v8::internal
#endif // V8_CONVERSIONS_H_
......@@ -28,10 +28,10 @@
#include "v8.h"
#include "arguments.h"
#include "objects.h"
#include "conversions.h"
#include "elements.h"
#include "objects.h"
#include "utils.h"
#include "v8conversions.h"
// Each concrete ElementsAccessor can handle exactly one ElementsKind,
// several abstract ElementsAccessor classes are used to allow sharing
......
......@@ -4,9 +4,9 @@
#include "factory.h"
#include "macro-assembler.h"
#include "conversions.h"
#include "isolate-inl.h"
#include "v8conversions.h"
#include "macro-assembler.h"
namespace v8 {
namespace internal {
......
......@@ -31,10 +31,10 @@
#include "allocation-tracker.h"
#include "code-stubs.h"
#include "heap-profiler.h"
#include "conversions.h"
#include "debug.h"
#include "heap-profiler.h"
#include "types.h"
#include "v8conversions.h"
namespace v8 {
namespace internal {
......
......@@ -32,6 +32,7 @@
#include "bootstrapper.h"
#include "codegen.h"
#include "compilation-cache.h"
#include "conversions.h"
#include "cpu-profiler.h"
#include "debug.h"
#include "deoptimizer.h"
......@@ -50,7 +51,6 @@
#include "store-buffer.h"
#include "utils/random-number-generator.h"
#include "utils.h"
#include "v8conversions.h"
#include "v8threads.h"
#include "vm-state-inl.h"
#if V8_TARGET_ARCH_ARM && !V8_INTERPRETED_REGEXP
......
......@@ -32,13 +32,13 @@
#include "allocation.h"
#include "code-stubs.h"
#include "conversions.h"
#include "data-flow.h"
#include "deoptimizer.h"
#include "small-pointer-list.h"
#include "string-stream.h"
#include "unique.h"
#include "utils.h"
#include "v8conversions.h"
#include "zone.h"
namespace v8 {
......
......@@ -31,11 +31,11 @@
#include "api.h"
#include "arguments.h"
#include "codegen.h"
#include "conversions.h"
#include "execution.h"
#include "ic-inl.h"
#include "runtime.h"
#include "stub-cache.h"
#include "v8conversions.h"
namespace v8 {
namespace internal {
......
......@@ -31,9 +31,9 @@
#include "code-stubs.h"
#include "compilation-cache.h"
#include "conversions.h"
#include "objects-visiting.h"
#include "objects-visiting-inl.h"
#include "v8conversions.h"
namespace v8 {
namespace internal {
......
......@@ -31,7 +31,7 @@
#include "v8.h"
#include "char-predicates-inl.h"
#include "v8conversions.h"
#include "conversions.h"
#include "messages.h"
#include "spaces-inl.h"
#include "token.h"
......
......@@ -29,8 +29,8 @@
#define V8_JSON_STRINGIFIER_H_
#include "v8.h"
#include "conversions.h"
#include "utils.h"
#include "v8conversions.h"
namespace v8 {
namespace internal {
......
......@@ -28,9 +28,9 @@
#ifndef V8_PROPERTY_DETAILS_INL_H_
#define V8_PROPERTY_DETAILS_INL_H_
#include "conversions.h"
#include "objects.h"
#include "property-details.h"
#include "v8conversions.h"
namespace v8 {
namespace internal {
......
......@@ -38,6 +38,7 @@
#include "codegen.h"
#include "compilation-cache.h"
#include "compiler.h"
#include "conversions.h"
#include "cpu.h"
#include "cpu-profiler.h"
#include "dateparser-inl.h"
......@@ -63,7 +64,6 @@
#include "string-search.h"
#include "stub-cache.h"
#include "uri.h"
#include "v8conversions.h"
#include "v8threads.h"
#include "vm-state-inl.h"
......
......@@ -30,9 +30,9 @@
#include "v8.h"
#include "conversions.h"
#include "string-search.h"
#include "utils.h"
#include "v8conversions.h"
namespace v8 {
namespace internal {
......
// Copyright 2011 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 <stdarg.h>
#include <limits.h>
#include "v8.h"
#include "assert-scope.h"
#include "conversions-inl.h"
#include "v8conversions.h"
#include "dtoa.h"
#include "factory.h"
#include "strtod.h"
namespace v8 {
namespace internal {
namespace {
// C++-style iterator adaptor for StringCharacterStream
// (unlike C++ iterators the end-marker has different type).
class StringCharacterStreamIterator {
public:
class EndMarker {};
explicit StringCharacterStreamIterator(StringCharacterStream* stream);
uint16_t operator*() const;
void operator++();
bool operator==(EndMarker const&) const { return end_; }
bool operator!=(EndMarker const& m) const { return !end_; }
private:
StringCharacterStream* const stream_;
uint16_t current_;
bool end_;
};
StringCharacterStreamIterator::StringCharacterStreamIterator(
StringCharacterStream* stream) : stream_(stream) {
++(*this);
}
uint16_t StringCharacterStreamIterator::operator*() const {
return current_;
}
void StringCharacterStreamIterator::operator++() {
end_ = !stream_->HasMore();
if (!end_) {
current_ = stream_->GetNext();
}
}
} // End anonymous namespace.
double StringToDouble(UnicodeCache* unicode_cache,
String* string,
int flags,
double empty_string_val) {
DisallowHeapAllocation no_gc;
String::FlatContent flat = string->GetFlatContent();
// ECMA-262 section 15.1.2.3, empty string is NaN
if (flat.IsAscii()) {
return StringToDouble(
unicode_cache, flat.ToOneByteVector(), flags, empty_string_val);
} else {
return StringToDouble(
unicode_cache, flat.ToUC16Vector(), flags, empty_string_val);
}
}
} } // namespace v8::internal
// Copyright 2011 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.
#ifndef V8_V8CONVERSIONS_H_
#define V8_V8CONVERSIONS_H_
#include "conversions.h"
namespace v8 {
namespace internal {
static inline bool IsMinusZero(double value) {
static const DoubleRepresentation minus_zero(-0.0);
return DoubleRepresentation(value) == minus_zero;
}
// Integer32 is an integer that can be represented as a signed 32-bit
// integer. It has to be in the range [-2^31, 2^31 - 1].
// We also have to check for negative 0 as it is not an Integer32.
static inline bool IsInt32Double(double value) {
return !IsMinusZero(value) &&
value >= kMinInt &&
value <= kMaxInt &&
value == FastI2D(FastD2I(value));
}
// Convert from Number object to C integer.
inline int32_t NumberToInt32(Object* number) {
if (number->IsSmi()) return Smi::cast(number)->value();
return DoubleToInt32(number->Number());
}
inline uint32_t NumberToUint32(Object* number) {
if (number->IsSmi()) return Smi::cast(number)->value();
return DoubleToUint32(number->Number());
}
double StringToDouble(UnicodeCache* unicode_cache,
String* string,
int flags,
double empty_string_val = 0.0);
inline bool TryNumberToSize(Isolate* isolate,
Object* number, size_t* result) {
SealHandleScope shs(isolate);
if (number->IsSmi()) {
int value = Smi::cast(number)->value();
ASSERT(static_cast<unsigned>(Smi::kMaxValue)
<= std::numeric_limits<size_t>::max());
if (value >= 0) {
*result = static_cast<size_t>(value);
return true;
}
return false;
} else {
ASSERT(number->IsHeapNumber());
double value = HeapNumber::cast(number)->value();
if (value >= 0 &&
value <= std::numeric_limits<size_t>::max()) {
*result = static_cast<size_t>(value);
return true;
} else {
return false;
}
}
}
// Converts a number into size_t.
inline size_t NumberToSize(Isolate* isolate,
Object* number) {
size_t result = 0;
bool is_valid = TryNumberToSize(isolate, number, &result);
CHECK(is_valid);
return result;
}
} } // namespace v8::internal
#endif // V8_V8CONVERSIONS_H_
......@@ -595,8 +595,6 @@
'../../src/v8.cc',
'../../src/v8.h',
'../../src/v8checks.h',
'../../src/v8conversions.cc',
'../../src/v8conversions.h',
'../../src/v8globals.h',
'../../src/v8memory.h',
'../../src/v8threads.cc',
......
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