134a89b11f
The TypeFeedbackVector is poised to host significant functionality. While it remains a FixedArray under the covers, we need a place to hold logic and definitions unique to its function. BUG= R=ishell@chromium.org Review URL: https://codereview.chromium.org/581993002 git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24027 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
710 lines
28 KiB
C++
710 lines
28 KiB
C++
// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef V8_FACTORY_H_
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#define V8_FACTORY_H_
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#include "src/isolate.h"
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namespace v8 {
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namespace internal {
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// Interface for handle based allocation.
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class Factory FINAL {
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public:
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Handle<Oddball> NewOddball(Handle<Map> map,
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const char* to_string,
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Handle<Object> to_number,
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byte kind);
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// Allocates a fixed array initialized with undefined values.
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Handle<FixedArray> NewFixedArray(
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int size,
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PretenureFlag pretenure = NOT_TENURED);
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// Allocate a new fixed array with non-existing entries (the hole).
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Handle<FixedArray> NewFixedArrayWithHoles(
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int size,
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PretenureFlag pretenure = NOT_TENURED);
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// Allocates an uninitialized fixed array. It must be filled by the caller.
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Handle<FixedArray> NewUninitializedFixedArray(int size);
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// Allocate a new uninitialized fixed double array.
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// The function returns a pre-allocated empty fixed array for capacity = 0,
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// so the return type must be the general fixed array class.
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Handle<FixedArrayBase> NewFixedDoubleArray(
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int size,
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PretenureFlag pretenure = NOT_TENURED);
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// Allocate a new fixed double array with hole values.
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Handle<FixedArrayBase> NewFixedDoubleArrayWithHoles(
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int size,
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PretenureFlag pretenure = NOT_TENURED);
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Handle<ConstantPoolArray> NewConstantPoolArray(
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const ConstantPoolArray::NumberOfEntries& small);
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Handle<ConstantPoolArray> NewExtendedConstantPoolArray(
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const ConstantPoolArray::NumberOfEntries& small,
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const ConstantPoolArray::NumberOfEntries& extended);
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Handle<OrderedHashSet> NewOrderedHashSet();
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Handle<OrderedHashMap> NewOrderedHashMap();
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// Create a new boxed value.
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Handle<Box> NewBox(Handle<Object> value);
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// Create a pre-tenured empty AccessorPair.
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Handle<AccessorPair> NewAccessorPair();
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// Create an empty TypeFeedbackInfo.
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Handle<TypeFeedbackInfo> NewTypeFeedbackInfo();
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// Finds the internalized copy for string in the string table.
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// If not found, a new string is added to the table and returned.
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Handle<String> InternalizeUtf8String(Vector<const char> str);
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Handle<String> InternalizeUtf8String(const char* str) {
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return InternalizeUtf8String(CStrVector(str));
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}
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Handle<String> InternalizeString(Handle<String> str);
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Handle<String> InternalizeOneByteString(Vector<const uint8_t> str);
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Handle<String> InternalizeOneByteString(
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Handle<SeqOneByteString>, int from, int length);
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Handle<String> InternalizeTwoByteString(Vector<const uc16> str);
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template<class StringTableKey>
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Handle<String> InternalizeStringWithKey(StringTableKey* key);
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// String creation functions. Most of the string creation functions take
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// a Heap::PretenureFlag argument to optionally request that they be
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// allocated in the old generation. The pretenure flag defaults to
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// DONT_TENURE.
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//
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// Creates a new String object. There are two String encodings: one-byte and
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// two-byte. One should choose between the three string factory functions
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// based on the encoding of the string buffer that the string is
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// initialized from.
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// - ...FromOneByte initializes the string from a buffer that is Latin1
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// encoded (it does not check that the buffer is Latin1 encoded) and
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// the result will be Latin1 encoded.
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// - ...FromUtf8 initializes the string from a buffer that is UTF-8
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// encoded. If the characters are all ASCII characters, the result
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// will be Latin1 encoded, otherwise it will converted to two-byte.
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// - ...FromTwoByte initializes the string from a buffer that is two-byte
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// encoded. If the characters are all Latin1 characters, the result
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// will be converted to Latin1, otherwise it will be left as two-byte.
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//
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// One-byte strings are pretenured when used as keys in the SourceCodeCache.
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MUST_USE_RESULT MaybeHandle<String> NewStringFromOneByte(
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Vector<const uint8_t> str,
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PretenureFlag pretenure = NOT_TENURED);
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template <size_t N>
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inline Handle<String> NewStringFromStaticChars(
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const char (&str)[N], PretenureFlag pretenure = NOT_TENURED) {
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DCHECK(N == StrLength(str) + 1);
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return NewStringFromOneByte(STATIC_CHAR_VECTOR(str), pretenure)
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.ToHandleChecked();
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}
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inline Handle<String> NewStringFromAsciiChecked(
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const char* str,
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PretenureFlag pretenure = NOT_TENURED) {
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return NewStringFromOneByte(
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OneByteVector(str), pretenure).ToHandleChecked();
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}
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// Allocates and fully initializes a String. There are two String encodings:
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// one-byte and two-byte. One should choose between the threestring
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// allocation functions based on the encoding of the string buffer used to
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// initialized the string.
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// - ...FromOneByte initializes the string from a buffer that is Latin1
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// encoded (it does not check that the buffer is Latin1 encoded) and the
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// result will be Latin1 encoded.
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// - ...FromUTF8 initializes the string from a buffer that is UTF-8
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// encoded. If the characters are all ASCII characters, the result
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// will be Latin1 encoded, otherwise it will converted to two-byte.
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// - ...FromTwoByte initializes the string from a buffer that is two-byte
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// encoded. If the characters are all Latin1 characters, the
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// result will be converted to Latin1, otherwise it will be left as
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// two-byte.
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// TODO(dcarney): remove this function.
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MUST_USE_RESULT inline MaybeHandle<String> NewStringFromAscii(
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Vector<const char> str,
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PretenureFlag pretenure = NOT_TENURED) {
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return NewStringFromOneByte(Vector<const uint8_t>::cast(str), pretenure);
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}
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// UTF8 strings are pretenured when used for regexp literal patterns and
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// flags in the parser.
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MUST_USE_RESULT MaybeHandle<String> NewStringFromUtf8(
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Vector<const char> str,
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PretenureFlag pretenure = NOT_TENURED);
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MUST_USE_RESULT MaybeHandle<String> NewStringFromTwoByte(
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Vector<const uc16> str,
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PretenureFlag pretenure = NOT_TENURED);
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// Allocates an internalized string in old space based on the character
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// stream.
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MUST_USE_RESULT Handle<String> NewInternalizedStringFromUtf8(
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Vector<const char> str,
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int chars,
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uint32_t hash_field);
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MUST_USE_RESULT Handle<String> NewOneByteInternalizedString(
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Vector<const uint8_t> str, uint32_t hash_field);
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MUST_USE_RESULT Handle<String> NewOneByteInternalizedSubString(
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Handle<SeqOneByteString> string, int offset, int length,
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uint32_t hash_field);
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MUST_USE_RESULT Handle<String> NewTwoByteInternalizedString(
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Vector<const uc16> str,
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uint32_t hash_field);
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MUST_USE_RESULT Handle<String> NewInternalizedStringImpl(
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Handle<String> string, int chars, uint32_t hash_field);
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// Compute the matching internalized string map for a string if possible.
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// Empty handle is returned if string is in new space or not flattened.
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MUST_USE_RESULT MaybeHandle<Map> InternalizedStringMapForString(
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Handle<String> string);
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// Allocates and partially initializes an one-byte or two-byte String. The
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// characters of the string are uninitialized. Currently used in regexp code
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// only, where they are pretenured.
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MUST_USE_RESULT MaybeHandle<SeqOneByteString> NewRawOneByteString(
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int length,
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PretenureFlag pretenure = NOT_TENURED);
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MUST_USE_RESULT MaybeHandle<SeqTwoByteString> NewRawTwoByteString(
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int length,
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PretenureFlag pretenure = NOT_TENURED);
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// Creates a single character string where the character has given code.
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// A cache is used for Latin1 codes.
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Handle<String> LookupSingleCharacterStringFromCode(uint32_t code);
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// Create a new cons string object which consists of a pair of strings.
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MUST_USE_RESULT MaybeHandle<String> NewConsString(Handle<String> left,
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Handle<String> right);
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// Create a new string object which holds a proper substring of a string.
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Handle<String> NewProperSubString(Handle<String> str,
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int begin,
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int end);
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// Create a new string object which holds a substring of a string.
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Handle<String> NewSubString(Handle<String> str, int begin, int end) {
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if (begin == 0 && end == str->length()) return str;
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return NewProperSubString(str, begin, end);
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}
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// Creates a new external String object. There are two String encodings
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// in the system: one-byte and two-byte. Unlike other String types, it does
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// not make sense to have a UTF-8 factory function for external strings,
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// because we cannot change the underlying buffer. Note that these strings
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// are backed by a string resource that resides outside the V8 heap.
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MUST_USE_RESULT MaybeHandle<String> NewExternalStringFromOneByte(
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const ExternalOneByteString::Resource* resource);
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MUST_USE_RESULT MaybeHandle<String> NewExternalStringFromTwoByte(
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const ExternalTwoByteString::Resource* resource);
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// Create a symbol.
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Handle<Symbol> NewSymbol();
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Handle<Symbol> NewPrivateSymbol();
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Handle<Symbol> NewPrivateOwnSymbol();
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// Create a global (but otherwise uninitialized) context.
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Handle<Context> NewNativeContext();
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// Create a global context.
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Handle<Context> NewGlobalContext(Handle<JSFunction> function,
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Handle<ScopeInfo> scope_info);
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// Create a module context.
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Handle<Context> NewModuleContext(Handle<ScopeInfo> scope_info);
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// Create a function context.
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Handle<Context> NewFunctionContext(int length, Handle<JSFunction> function);
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// Create a catch context.
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Handle<Context> NewCatchContext(Handle<JSFunction> function,
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Handle<Context> previous,
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Handle<String> name,
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Handle<Object> thrown_object);
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// Create a 'with' context.
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Handle<Context> NewWithContext(Handle<JSFunction> function,
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Handle<Context> previous,
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Handle<JSReceiver> extension);
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// Create a block context.
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Handle<Context> NewBlockContext(Handle<JSFunction> function,
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Handle<Context> previous,
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Handle<ScopeInfo> scope_info);
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// Allocate a new struct. The struct is pretenured (allocated directly in
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// the old generation).
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Handle<Struct> NewStruct(InstanceType type);
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Handle<CodeCache> NewCodeCache();
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Handle<AliasedArgumentsEntry> NewAliasedArgumentsEntry(
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int aliased_context_slot);
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Handle<DeclaredAccessorDescriptor> NewDeclaredAccessorDescriptor();
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Handle<DeclaredAccessorInfo> NewDeclaredAccessorInfo();
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Handle<ExecutableAccessorInfo> NewExecutableAccessorInfo();
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Handle<Script> NewScript(Handle<String> source);
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// Foreign objects are pretenured when allocated by the bootstrapper.
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Handle<Foreign> NewForeign(Address addr,
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PretenureFlag pretenure = NOT_TENURED);
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// Allocate a new foreign object. The foreign is pretenured (allocated
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// directly in the old generation).
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Handle<Foreign> NewForeign(const AccessorDescriptor* foreign);
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Handle<ByteArray> NewByteArray(int length,
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PretenureFlag pretenure = NOT_TENURED);
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Handle<ExternalArray> NewExternalArray(
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int length,
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ExternalArrayType array_type,
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void* external_pointer,
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PretenureFlag pretenure = NOT_TENURED);
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Handle<FixedTypedArrayBase> NewFixedTypedArray(
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int length,
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ExternalArrayType array_type,
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PretenureFlag pretenure = NOT_TENURED);
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Handle<Cell> NewCell(Handle<Object> value);
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Handle<PropertyCell> NewPropertyCellWithHole();
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Handle<PropertyCell> NewPropertyCell(Handle<Object> value);
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// Allocate a tenured AllocationSite. It's payload is null.
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Handle<AllocationSite> NewAllocationSite();
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Handle<Map> NewMap(
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InstanceType type,
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int instance_size,
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ElementsKind elements_kind = TERMINAL_FAST_ELEMENTS_KIND);
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Handle<HeapObject> NewFillerObject(int size,
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bool double_align,
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AllocationSpace space);
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Handle<JSObject> NewFunctionPrototype(Handle<JSFunction> function);
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Handle<JSObject> CopyJSObject(Handle<JSObject> object);
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Handle<JSObject> CopyJSObjectWithAllocationSite(Handle<JSObject> object,
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Handle<AllocationSite> site);
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Handle<FixedArray> CopyFixedArrayWithMap(Handle<FixedArray> array,
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Handle<Map> map);
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Handle<FixedArray> CopyFixedArray(Handle<FixedArray> array);
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// This method expects a COW array in new space, and creates a copy
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// of it in old space.
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Handle<FixedArray> CopyAndTenureFixedCOWArray(Handle<FixedArray> array);
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Handle<FixedDoubleArray> CopyFixedDoubleArray(
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Handle<FixedDoubleArray> array);
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Handle<ConstantPoolArray> CopyConstantPoolArray(
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Handle<ConstantPoolArray> array);
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// Numbers (e.g. literals) are pretenured by the parser.
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// The return value may be a smi or a heap number.
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Handle<Object> NewNumber(double value,
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PretenureFlag pretenure = NOT_TENURED);
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Handle<Object> NewNumberFromInt(int32_t value,
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PretenureFlag pretenure = NOT_TENURED);
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Handle<Object> NewNumberFromUint(uint32_t value,
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PretenureFlag pretenure = NOT_TENURED);
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Handle<Object> NewNumberFromSize(size_t value,
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PretenureFlag pretenure = NOT_TENURED) {
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if (Smi::IsValid(static_cast<intptr_t>(value))) {
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return Handle<Object>(Smi::FromIntptr(static_cast<intptr_t>(value)),
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isolate());
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}
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return NewNumber(static_cast<double>(value), pretenure);
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}
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Handle<HeapNumber> NewHeapNumber(double value,
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MutableMode mode = IMMUTABLE,
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PretenureFlag pretenure = NOT_TENURED);
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// These objects are used by the api to create env-independent data
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// structures in the heap.
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inline Handle<JSObject> NewNeanderObject() {
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return NewJSObjectFromMap(neander_map());
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}
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Handle<JSObject> NewArgumentsObject(Handle<JSFunction> callee, int length);
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// JS objects are pretenured when allocated by the bootstrapper and
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// runtime.
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Handle<JSObject> NewJSObject(Handle<JSFunction> constructor,
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PretenureFlag pretenure = NOT_TENURED);
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// JSObject that should have a memento pointing to the allocation site.
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Handle<JSObject> NewJSObjectWithMemento(Handle<JSFunction> constructor,
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Handle<AllocationSite> site);
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// Global objects are pretenured and initialized based on a constructor.
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Handle<GlobalObject> NewGlobalObject(Handle<JSFunction> constructor);
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// JS objects are pretenured when allocated by the bootstrapper and
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// runtime.
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Handle<JSObject> NewJSObjectFromMap(
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Handle<Map> map,
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PretenureFlag pretenure = NOT_TENURED,
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bool allocate_properties = true,
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Handle<AllocationSite> allocation_site = Handle<AllocationSite>::null());
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// JS modules are pretenured.
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Handle<JSModule> NewJSModule(Handle<Context> context,
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Handle<ScopeInfo> scope_info);
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// JS arrays are pretenured when allocated by the parser.
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// Create a JSArray with no elements.
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Handle<JSArray> NewJSArray(
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ElementsKind elements_kind,
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PretenureFlag pretenure = NOT_TENURED);
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// Create a JSArray with a specified length and elements initialized
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// according to the specified mode.
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Handle<JSArray> NewJSArray(
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ElementsKind elements_kind, int length, int capacity,
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ArrayStorageAllocationMode mode = DONT_INITIALIZE_ARRAY_ELEMENTS,
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PretenureFlag pretenure = NOT_TENURED);
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Handle<JSArray> NewJSArray(
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int capacity,
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ElementsKind elements_kind = TERMINAL_FAST_ELEMENTS_KIND,
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PretenureFlag pretenure = NOT_TENURED) {
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if (capacity != 0) {
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elements_kind = GetHoleyElementsKind(elements_kind);
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}
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return NewJSArray(elements_kind, 0, capacity,
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INITIALIZE_ARRAY_ELEMENTS_WITH_HOLE, pretenure);
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}
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// Create a JSArray with the given elements.
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Handle<JSArray> NewJSArrayWithElements(
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Handle<FixedArrayBase> elements,
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ElementsKind elements_kind,
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int length,
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PretenureFlag pretenure = NOT_TENURED);
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Handle<JSArray> NewJSArrayWithElements(
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Handle<FixedArrayBase> elements,
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ElementsKind elements_kind = TERMINAL_FAST_ELEMENTS_KIND,
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PretenureFlag pretenure = NOT_TENURED) {
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return NewJSArrayWithElements(
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elements, elements_kind, elements->length(), pretenure);
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}
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void NewJSArrayStorage(
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Handle<JSArray> array,
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int length,
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int capacity,
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ArrayStorageAllocationMode mode = DONT_INITIALIZE_ARRAY_ELEMENTS);
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Handle<JSGeneratorObject> NewJSGeneratorObject(Handle<JSFunction> function);
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Handle<JSArrayBuffer> NewJSArrayBuffer();
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Handle<JSTypedArray> NewJSTypedArray(ExternalArrayType type);
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Handle<JSDataView> NewJSDataView();
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// Allocates a Harmony proxy.
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Handle<JSProxy> NewJSProxy(Handle<Object> handler, Handle<Object> prototype);
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// Allocates a Harmony function proxy.
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Handle<JSProxy> NewJSFunctionProxy(Handle<Object> handler,
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Handle<Object> call_trap,
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Handle<Object> construct_trap,
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Handle<Object> prototype);
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// Reinitialize an JSGlobalProxy based on a constructor. The object
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// must have the same size as objects allocated using the
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// constructor. The object is reinitialized and behaves as an
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// object that has been freshly allocated using the constructor.
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void ReinitializeJSGlobalProxy(Handle<JSGlobalProxy> global,
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Handle<JSFunction> constructor);
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// Change the type of the argument into a JS object/function and reinitialize.
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void BecomeJSObject(Handle<JSProxy> object);
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void BecomeJSFunction(Handle<JSProxy> object);
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Handle<JSFunction> NewFunction(Handle<String> name,
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Handle<Code> code,
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Handle<Object> prototype,
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bool read_only_prototype = false);
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Handle<JSFunction> NewFunction(Handle<String> name);
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Handle<JSFunction> NewFunctionWithoutPrototype(Handle<String> name,
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Handle<Code> code);
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Handle<JSFunction> NewFunctionFromSharedFunctionInfo(
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Handle<SharedFunctionInfo> function_info,
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Handle<Context> context,
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PretenureFlag pretenure = TENURED);
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Handle<JSFunction> NewFunction(Handle<String> name,
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Handle<Code> code,
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Handle<Object> prototype,
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InstanceType type,
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int instance_size,
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bool read_only_prototype = false);
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Handle<JSFunction> NewFunction(Handle<String> name,
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Handle<Code> code,
|
|
InstanceType type,
|
|
int instance_size);
|
|
|
|
// Create a serialized scope info.
|
|
Handle<ScopeInfo> NewScopeInfo(int length);
|
|
|
|
// Create an External object for V8's external API.
|
|
Handle<JSObject> NewExternal(void* value);
|
|
|
|
// The reference to the Code object is stored in self_reference.
|
|
// This allows generated code to reference its own Code object
|
|
// by containing this handle.
|
|
Handle<Code> NewCode(const CodeDesc& desc,
|
|
Code::Flags flags,
|
|
Handle<Object> self_reference,
|
|
bool immovable = false,
|
|
bool crankshafted = false,
|
|
int prologue_offset = Code::kPrologueOffsetNotSet,
|
|
bool is_debug = false);
|
|
|
|
Handle<Code> CopyCode(Handle<Code> code);
|
|
|
|
Handle<Code> CopyCode(Handle<Code> code, Vector<byte> reloc_info);
|
|
|
|
// Interface for creating error objects.
|
|
|
|
MaybeHandle<Object> NewError(const char* maker, const char* message,
|
|
Handle<JSArray> args);
|
|
Handle<String> EmergencyNewError(const char* message, Handle<JSArray> args);
|
|
MaybeHandle<Object> NewError(const char* maker, const char* message,
|
|
Vector<Handle<Object> > args);
|
|
MaybeHandle<Object> NewError(const char* message,
|
|
Vector<Handle<Object> > args);
|
|
MaybeHandle<Object> NewError(Handle<String> message);
|
|
MaybeHandle<Object> NewError(const char* constructor, Handle<String> message);
|
|
|
|
MaybeHandle<Object> NewTypeError(const char* message,
|
|
Vector<Handle<Object> > args);
|
|
MaybeHandle<Object> NewTypeError(Handle<String> message);
|
|
|
|
MaybeHandle<Object> NewRangeError(const char* message,
|
|
Vector<Handle<Object> > args);
|
|
MaybeHandle<Object> NewRangeError(Handle<String> message);
|
|
|
|
MaybeHandle<Object> NewInvalidStringLengthError() {
|
|
return NewRangeError("invalid_string_length",
|
|
HandleVector<Object>(NULL, 0));
|
|
}
|
|
|
|
MaybeHandle<Object> NewSyntaxError(const char* message, Handle<JSArray> args);
|
|
MaybeHandle<Object> NewSyntaxError(Handle<String> message);
|
|
|
|
MaybeHandle<Object> NewReferenceError(const char* message,
|
|
Vector<Handle<Object> > args);
|
|
MaybeHandle<Object> NewReferenceError(const char* message,
|
|
Handle<JSArray> args);
|
|
MaybeHandle<Object> NewReferenceError(Handle<String> message);
|
|
|
|
MaybeHandle<Object> NewEvalError(const char* message,
|
|
Vector<Handle<Object> > args);
|
|
|
|
Handle<String> NumberToString(Handle<Object> number,
|
|
bool check_number_string_cache = true);
|
|
|
|
Handle<String> Uint32ToString(uint32_t value) {
|
|
return NumberToString(NewNumberFromUint(value));
|
|
}
|
|
|
|
enum ApiInstanceType {
|
|
JavaScriptObjectType,
|
|
GlobalObjectType,
|
|
GlobalProxyType
|
|
};
|
|
|
|
Handle<JSFunction> CreateApiFunction(
|
|
Handle<FunctionTemplateInfo> data,
|
|
Handle<Object> prototype,
|
|
ApiInstanceType type = JavaScriptObjectType);
|
|
|
|
Handle<JSFunction> InstallMembers(Handle<JSFunction> function);
|
|
|
|
// Installs interceptors on the instance. 'desc' is a function template,
|
|
// and instance is an object instance created by the function of this
|
|
// function template.
|
|
MUST_USE_RESULT MaybeHandle<FunctionTemplateInfo> ConfigureInstance(
|
|
Handle<FunctionTemplateInfo> desc, Handle<JSObject> instance);
|
|
|
|
#define ROOT_ACCESSOR(type, name, camel_name) \
|
|
inline Handle<type> name() { \
|
|
return Handle<type>(bit_cast<type**>( \
|
|
&isolate()->heap()->roots_[Heap::k##camel_name##RootIndex])); \
|
|
}
|
|
ROOT_LIST(ROOT_ACCESSOR)
|
|
#undef ROOT_ACCESSOR
|
|
|
|
#define STRUCT_MAP_ACCESSOR(NAME, Name, name) \
|
|
inline Handle<Map> name##_map() { \
|
|
return Handle<Map>(bit_cast<Map**>( \
|
|
&isolate()->heap()->roots_[Heap::k##Name##MapRootIndex])); \
|
|
}
|
|
STRUCT_LIST(STRUCT_MAP_ACCESSOR)
|
|
#undef STRUCT_MAP_ACCESSOR
|
|
|
|
#define STRING_ACCESSOR(name, str) \
|
|
inline Handle<String> name() { \
|
|
return Handle<String>(bit_cast<String**>( \
|
|
&isolate()->heap()->roots_[Heap::k##name##RootIndex])); \
|
|
}
|
|
INTERNALIZED_STRING_LIST(STRING_ACCESSOR)
|
|
#undef STRING_ACCESSOR
|
|
|
|
inline void set_string_table(Handle<StringTable> table) {
|
|
isolate()->heap()->set_string_table(*table);
|
|
}
|
|
|
|
Handle<String> hidden_string() {
|
|
return Handle<String>(&isolate()->heap()->hidden_string_);
|
|
}
|
|
|
|
// Allocates a new SharedFunctionInfo object.
|
|
Handle<SharedFunctionInfo> NewSharedFunctionInfo(
|
|
Handle<String> name, int number_of_literals, FunctionKind kind,
|
|
Handle<Code> code, Handle<ScopeInfo> scope_info,
|
|
Handle<TypeFeedbackVector> feedback_vector);
|
|
Handle<SharedFunctionInfo> NewSharedFunctionInfo(Handle<String> name,
|
|
MaybeHandle<Code> code);
|
|
|
|
// Allocate a new type feedback vector
|
|
Handle<TypeFeedbackVector> NewTypeFeedbackVector(int slot_count);
|
|
|
|
// Allocates a new JSMessageObject object.
|
|
Handle<JSMessageObject> NewJSMessageObject(
|
|
Handle<String> type,
|
|
Handle<JSArray> arguments,
|
|
int start_position,
|
|
int end_position,
|
|
Handle<Object> script,
|
|
Handle<Object> stack_frames);
|
|
|
|
Handle<DebugInfo> NewDebugInfo(Handle<SharedFunctionInfo> shared);
|
|
|
|
// Return a map using the map cache in the native context.
|
|
// The key the an ordered set of property names.
|
|
Handle<Map> ObjectLiteralMapFromCache(Handle<Context> context,
|
|
Handle<FixedArray> keys);
|
|
|
|
// Creates a new FixedArray that holds the data associated with the
|
|
// atom regexp and stores it in the regexp.
|
|
void SetRegExpAtomData(Handle<JSRegExp> regexp,
|
|
JSRegExp::Type type,
|
|
Handle<String> source,
|
|
JSRegExp::Flags flags,
|
|
Handle<Object> match_pattern);
|
|
|
|
// Creates a new FixedArray that holds the data associated with the
|
|
// irregexp regexp and stores it in the regexp.
|
|
void SetRegExpIrregexpData(Handle<JSRegExp> regexp,
|
|
JSRegExp::Type type,
|
|
Handle<String> source,
|
|
JSRegExp::Flags flags,
|
|
int capture_count);
|
|
|
|
// Returns the value for a known global constant (a property of the global
|
|
// object which is neither configurable nor writable) like 'undefined'.
|
|
// Returns a null handle when the given name is unknown.
|
|
Handle<Object> GlobalConstantFor(Handle<String> name);
|
|
|
|
// Converts the given boolean condition to JavaScript boolean value.
|
|
Handle<Object> ToBoolean(bool value);
|
|
|
|
private:
|
|
Isolate* isolate() { return reinterpret_cast<Isolate*>(this); }
|
|
|
|
// Creates a heap object based on the map. The fields of the heap object are
|
|
// not initialized by New<>() functions. It's the responsibility of the caller
|
|
// to do that.
|
|
template<typename T>
|
|
Handle<T> New(Handle<Map> map, AllocationSpace space);
|
|
|
|
template<typename T>
|
|
Handle<T> New(Handle<Map> map,
|
|
AllocationSpace space,
|
|
Handle<AllocationSite> allocation_site);
|
|
|
|
// Creates a code object that is not yet fully initialized yet.
|
|
inline Handle<Code> NewCodeRaw(int object_size, bool immovable);
|
|
|
|
// Create a new map cache.
|
|
Handle<MapCache> NewMapCache(int at_least_space_for);
|
|
|
|
// Update the map cache in the native context with (keys, map)
|
|
Handle<MapCache> AddToMapCache(Handle<Context> context,
|
|
Handle<FixedArray> keys,
|
|
Handle<Map> map);
|
|
|
|
// Attempt to find the number in a small cache. If we finds it, return
|
|
// the string representation of the number. Otherwise return undefined.
|
|
Handle<Object> GetNumberStringCache(Handle<Object> number);
|
|
|
|
// Update the cache with a new number-string pair.
|
|
void SetNumberStringCache(Handle<Object> number, Handle<String> string);
|
|
|
|
// Initializes a function with a shared part and prototype.
|
|
// Note: this code was factored out of NewFunction such that other parts of
|
|
// the VM could use it. Specifically, a function that creates instances of
|
|
// type JS_FUNCTION_TYPE benefit from the use of this function.
|
|
inline void InitializeFunction(Handle<JSFunction> function,
|
|
Handle<SharedFunctionInfo> info,
|
|
Handle<Context> context);
|
|
|
|
// Creates a function initialized with a shared part.
|
|
Handle<JSFunction> NewFunction(Handle<Map> map,
|
|
Handle<SharedFunctionInfo> info,
|
|
Handle<Context> context,
|
|
PretenureFlag pretenure = TENURED);
|
|
|
|
Handle<JSFunction> NewFunction(Handle<Map> map,
|
|
Handle<String> name,
|
|
MaybeHandle<Code> maybe_code);
|
|
|
|
// Reinitialize a JSProxy into an (empty) JS object of respective type and
|
|
// size, but keeping the original prototype. The receiver must have at least
|
|
// the size of the new object. The object is reinitialized and behaves as an
|
|
// object that has been freshly allocated.
|
|
void ReinitializeJSProxy(Handle<JSProxy> proxy, InstanceType type, int size);
|
|
};
|
|
|
|
} } // namespace v8::internal
|
|
|
|
#endif // V8_FACTORY_H_
|