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// Copyright 2017 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_BUILTINS_BUILTINS_REGEXP_GEN_H_
#define V8_BUILTINS_BUILTINS_REGEXP_GEN_H_
#include "src/base/optional.h"
#include "src/codegen/code-stub-assembler.h"
#include "src/common/message-template.h"
namespace v8 {
namespace internal {
class RegExpBuiltinsAssembler : public CodeStubAssembler {
public:
explicit RegExpBuiltinsAssembler(compiler::CodeAssemblerState* state)
: CodeStubAssembler(state) {}
void BranchIfFastRegExp(
Node* const context, Node* const object, Node* const map,
base::Optional<DescriptorIndexAndName> additional_property_to_check,
Label* const if_isunmodified, Label* const if_ismodified);
// Create and initialize a RegExp object.
TNode<Object> RegExpCreate(TNode<Context> context,
TNode<Context> native_context,
TNode<Object> regexp_string, TNode<String> flags);
TNode<Object> RegExpCreate(TNode<Context> context, TNode<Map> initial_map,
TNode<Object> regexp_string, TNode<String> flags);
TNode<BoolT> IsRegExp(TNode<Context> context, TNode<Object> maybe_receiver);
TNode<Smi> SmiZero();
TNode<IntPtrT> IntPtrZero();
// Allocate a RegExpResult with the given length (the number of captures,
// including the match itself), index (the index where the match starts),
// and input string.
TNode<JSRegExpResult> AllocateRegExpResult(
TNode<Context> context, TNode<Smi> length, TNode<Smi> index,
TNode<String> input, TNode<FixedArray>* elements_out = nullptr);
TNode<Object> FastLoadLastIndexBeforeSmiCheck(TNode<JSRegExp> regexp);
TNode<Smi> FastLoadLastIndex(TNode<JSRegExp> regexp) {
return CAST(FastLoadLastIndexBeforeSmiCheck(regexp));
}
TNode<Object> SlowLoadLastIndex(TNode<Context> context, TNode<Object> regexp);
TNode<Object> LoadLastIndex(TNode<Context> context, TNode<Object> regexp,
bool is_fastpath);
void FastStoreLastIndex(TNode<JSRegExp> regexp, TNode<Smi> value);
void SlowStoreLastIndex(SloppyTNode<Context> context,
SloppyTNode<Object> regexp,
SloppyTNode<Number> value);
void StoreLastIndex(TNode<Context> context, TNode<Object> regexp,
TNode<Number> value, bool is_fastpath);
// Loads {var_string_start} and {var_string_end} with the corresponding
// offsets into the given {string_data}.
void GetStringPointers(Node* const string_data, Node* const offset,
Node* const last_index, Node* const string_length,
String::Encoding encoding, Variable* var_string_start,
Variable* var_string_end);
// Low level logic around the actual call into pattern matching code.
TNode<HeapObject> RegExpExecInternal(TNode<Context> context,
TNode<JSRegExp> regexp,
TNode<String> string,
TNode<Number> last_index,
TNode<RegExpMatchInfo> match_info);
TNode<JSRegExpResult> ConstructNewResultFromMatchInfo(
TNode<Context> context, TNode<JSReceiver> maybe_regexp,
TNode<RegExpMatchInfo> match_info, TNode<String> string);
TNode<RegExpMatchInfo> RegExpPrototypeExecBodyWithoutResult(
TNode<Context> context, TNode<JSReceiver> maybe_regexp,
TNode<String> string, Label* if_didnotmatch, const bool is_fastpath);
TNode<RegExpMatchInfo> RegExpPrototypeExecBodyWithoutResultFast(
TNode<Context> context, TNode<JSReceiver> maybe_regexp,
TNode<String> string, Label* if_didnotmatch);
TNode<HeapObject> RegExpPrototypeExecBody(TNode<Context> context,
TNode<JSReceiver> maybe_regexp,
TNode<String> string,
const bool is_fastpath);
Node* ThrowIfNotJSReceiver(Node* context, Node* maybe_receiver,
MessageTemplate msg_template,
char const* method_name);
// Analogous to BranchIfFastRegExp, for use in asserts.
TNode<BoolT> IsFastRegExp(SloppyTNode<Context> context,
SloppyTNode<Object> object);
void BranchIfFastRegExp(Node* const context, Node* const object,
Label* const if_isunmodified,
Label* const if_ismodified);
// Performs fast path checks on the given object itself, but omits prototype
// checks.
Node* IsFastRegExpNoPrototype(Node* const context, Node* const object);
TNode<BoolT> IsFastRegExpWithOriginalExec(TNode<Context> context,
TNode<JSRegExp> object);
Node* IsFastRegExpNoPrototype(Node* const context, Node* const object,
Node* const map);
void BranchIfFastRegExpResult(Node* const context, Node* const object,
Label* if_isunmodified, Label* if_ismodified);
Node* FlagsGetter(Node* const context, Node* const regexp, bool is_fastpath);
TNode<Int32T> FastFlagGetter(TNode<JSRegExp> regexp, JSRegExp::Flag flag);
TNode<BoolT> FastFlagGetterGlobal(TNode<JSRegExp> regexp) {
return ReinterpretCast<BoolT>(FastFlagGetter(regexp, JSRegExp::kGlobal));
}
TNode<BoolT> FastFlagGetterUnicode(TNode<JSRegExp> regexp) {
return ReinterpretCast<BoolT>(FastFlagGetter(regexp, JSRegExp::kUnicode));
}
TNode<Int32T> SlowFlagGetter(TNode<Context> context, TNode<Object> regexp,
JSRegExp::Flag flag);
TNode<Int32T> FlagGetter(TNode<Context> context, TNode<Object> regexp,
JSRegExp::Flag flag, bool is_fastpath);
void FlagGetter(Node* context, Node* receiver, JSRegExp::Flag flag,
int counter, const char* method_name);
Node* RegExpInitialize(Node* const context, Node* const regexp,
Node* const maybe_pattern, Node* const maybe_flags);
Node* RegExpExec(Node* context, Node* regexp, Node* string);
TNode<Number> AdvanceStringIndex(SloppyTNode<String> string,
SloppyTNode<Number> index,
SloppyTNode<BoolT> is_unicode,
bool is_fastpath);
TNode<Smi> AdvanceStringIndexFast(TNode<String> string, TNode<Smi> index,
TNode<BoolT> is_unicode) {
return CAST(AdvanceStringIndex(string, index, is_unicode, true));
}
void RegExpPrototypeMatchBody(TNode<Context> context, TNode<Object> regexp,
TNode<String> const string,
const bool is_fastpath);
void RegExpPrototypeSearchBodyFast(TNode<Context> context,
TNode<JSRegExp> regexp,
TNode<String> string);
void RegExpPrototypeSearchBodySlow(Node* const context, Node* const regexp,
Node* const string);
void RegExpPrototypeSplitBody(Node* const context, Node* const regexp,
TNode<String> const string,
TNode<Smi> const limit);
};
class RegExpMatchAllAssembler : public RegExpBuiltinsAssembler {
public:
explicit RegExpMatchAllAssembler(compiler::CodeAssemblerState* state)
: RegExpBuiltinsAssembler(state) {}
TNode<Object> CreateRegExpStringIterator(TNode<Context> native_context,
TNode<Object> regexp,
TNode<String> string,
TNode<Int32T> global,
TNode<Int32T> full_unicode);
void Generate(TNode<Context> context, TNode<Context> native_context,
TNode<Object> receiver, TNode<Object> maybe_string);
};
} // namespace internal
} // namespace v8
#endif // V8_BUILTINS_BUILTINS_REGEXP_GEN_H_
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