Issue #1677 - Part 1: Import new V8 regexp code with Mozilla's header modifications

1 files changed, 81 insertions, 0 deletions

diff --git a/js/src/regexp/regexp-macro-assembler-tracer.h b/js/src/regexp/regexp-macro-assembler-tracer.h
new file mode 100644
index 000000000..938f84796
--- /dev/null
+++ b/js/src/regexp/regexp-macro-assembler-tracer.h
@@ -0,0 +1,81 @@
+// Copyright 2008 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_REGEXP_REGEXP_MACRO_ASSEMBLER_TRACER_H_
+#define V8_REGEXP_REGEXP_MACRO_ASSEMBLER_TRACER_H_
+
+#include "regexp/regexp-macro-assembler.h"
+
+namespace v8 {
+namespace internal {
+
+// Decorator on a RegExpMacroAssembler that write all calls.
+class RegExpMacroAssemblerTracer: public RegExpMacroAssembler {
+ public:
+  RegExpMacroAssemblerTracer(Isolate* isolate, RegExpMacroAssembler* assembler);
+  ~RegExpMacroAssemblerTracer() override;
+  void AbortedCodeGeneration() override;
+  int stack_limit_slack() override { return assembler_->stack_limit_slack(); }
+  bool CanReadUnaligned() override { return assembler_->CanReadUnaligned(); }
+  void AdvanceCurrentPosition(int by) override;    // Signed cp change.
+  void AdvanceRegister(int reg, int by) override;  // r[reg] += by.
+  void Backtrack() override;
+  void Bind(Label* label) override;
+  void CheckCharacter(unsigned c, Label* on_equal) override;
+  void CheckCharacterAfterAnd(unsigned c, unsigned and_with,
+                              Label* on_equal) override;
+  void CheckCharacterGT(uc16 limit, Label* on_greater) override;
+  void CheckCharacterLT(uc16 limit, Label* on_less) override;
+  void CheckGreedyLoop(Label* on_tos_equals_current_position) override;
+  void CheckAtStart(int cp_offset, Label* on_at_start) override;
+  void CheckNotAtStart(int cp_offset, Label* on_not_at_start) override;
+  void CheckNotBackReference(int start_reg, bool read_backward,
+                             Label* on_no_match) override;
+  void CheckNotBackReferenceIgnoreCase(int start_reg, bool read_backward,
+                                       bool unicode,
+                                       Label* on_no_match) override;
+  void CheckNotCharacter(unsigned c, Label* on_not_equal) override;
+  void CheckNotCharacterAfterAnd(unsigned c, unsigned and_with,
+                                 Label* on_not_equal) override;
+  void CheckNotCharacterAfterMinusAnd(uc16 c, uc16 minus, uc16 and_with,
+                                      Label* on_not_equal) override;
+  void CheckCharacterInRange(uc16 from, uc16 to, Label* on_in_range) override;
+  void CheckCharacterNotInRange(uc16 from, uc16 to,
+                                Label* on_not_in_range) override;
+  void CheckBitInTable(Handle<ByteArray> table, Label* on_bit_set) override;
+  void CheckPosition(int cp_offset, Label* on_outside_input) override;
+  bool CheckSpecialCharacterClass(uc16 type, Label* on_no_match) override;
+  void Fail() override;
+  Handle<HeapObject> GetCode(Handle<String> source) override;
+  void GoTo(Label* label) override;
+  void IfRegisterGE(int reg, int comparand, Label* if_ge) override;
+  void IfRegisterLT(int reg, int comparand, Label* if_lt) override;
+  void IfRegisterEqPos(int reg, Label* if_eq) override;
+  IrregexpImplementation Implementation() override;
+  void LoadCurrentCharacterImpl(int cp_offset, Label* on_end_of_input,
+                                bool check_bounds, int characters,
+                                int eats_at_least) override;
+  void PopCurrentPosition() override;
+  void PopRegister(int register_index) override;
+  void PushBacktrack(Label* label) override;
+  void PushCurrentPosition() override;
+  void PushRegister(int register_index,
+                    StackCheckFlag check_stack_limit) override;
+  void ReadCurrentPositionFromRegister(int reg) override;
+  void ReadStackPointerFromRegister(int reg) override;
+  void SetCurrentPositionFromEnd(int by) override;
+  void SetRegister(int register_index, int to) override;
+  bool Succeed() override;
+  void WriteCurrentPositionToRegister(int reg, int cp_offset) override;
+  void ClearRegisters(int reg_from, int reg_to) override;
+  void WriteStackPointerToRegister(int reg) override;
+
+ private:
+  RegExpMacroAssembler* assembler_;
+};
+
+}  // namespace internal
+}  // namespace v8
+
+#endif  // V8_REGEXP_REGEXP_MACRO_ASSEMBLER_TRACER_H_