root/src/regexp-macro-assembler-tracer.cc
/* [<][>][^][v][top][bottom][index][help] */
DEFINITIONS
This source file includes following definitions.
- assembler_
- LabelToInt
- Bind
- AdvanceCurrentPosition
- CheckGreedyLoop
- PopCurrentPosition
- PushCurrentPosition
- Backtrack
- GoTo
- PushBacktrack
- Succeed
- Fail
- PopRegister
- PushRegister
- AdvanceRegister
- SetCurrentPositionFromEnd
- SetRegister
- WriteCurrentPositionToRegister
- ClearRegisters
- ReadCurrentPositionFromRegister
- WriteStackPointerToRegister
- ReadStackPointerFromRegister
- LoadCurrentCharacter
- CheckCharacterLT
- CheckCharacterGT
- CheckCharacter
- CheckAtStart
- CheckNotAtStart
- CheckNotCharacter
- CheckCharacterAfterAnd
- CheckNotCharacterAfterAnd
- CheckNotCharacterAfterMinusAnd
- CheckCharacterInRange
- CheckCharacterNotInRange
- CheckBitInTable
- CheckNotBackReference
- CheckNotBackReferenceIgnoreCase
- CheckCharacters
- CheckSpecialCharacterClass
- IfRegisterLT
- IfRegisterEqPos
- IfRegisterGE
- Implementation
- GetCode
// Copyright 2012 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 "v8.h"
#include "ast.h"
#include "regexp-macro-assembler.h"
#include "regexp-macro-assembler-tracer.h"
namespace v8 {
namespace internal {
RegExpMacroAssemblerTracer::RegExpMacroAssemblerTracer(
RegExpMacroAssembler* assembler) :
RegExpMacroAssembler(assembler->zone()),
assembler_(assembler) {
unsigned int type = assembler->Implementation();
ASSERT(type < 5);
const char* impl_names[] = {"IA32", "ARM", "MIPS", "X64", "Bytecode"};
PrintF("RegExpMacroAssembler%s();\n", impl_names[type]);
}
RegExpMacroAssemblerTracer::~RegExpMacroAssemblerTracer() {
}
// This is used for printing out debugging information. It makes an integer
// that is closely related to the address of an object.
static int LabelToInt(Label* label) {
return static_cast<int>(reinterpret_cast<intptr_t>(label));
}
void RegExpMacroAssemblerTracer::Bind(Label* label) {
PrintF("label[%08x]: (Bind)\n", LabelToInt(label));
assembler_->Bind(label);
}
void RegExpMacroAssemblerTracer::AdvanceCurrentPosition(int by) {
PrintF(" AdvanceCurrentPosition(by=%d);\n", by);
assembler_->AdvanceCurrentPosition(by);
}
void RegExpMacroAssemblerTracer::CheckGreedyLoop(Label* label) {
PrintF(" CheckGreedyLoop(label[%08x]);\n\n", LabelToInt(label));
assembler_->CheckGreedyLoop(label);
}
void RegExpMacroAssemblerTracer::PopCurrentPosition() {
PrintF(" PopCurrentPosition();\n");
assembler_->PopCurrentPosition();
}
void RegExpMacroAssemblerTracer::PushCurrentPosition() {
PrintF(" PushCurrentPosition();\n");
assembler_->PushCurrentPosition();
}
void RegExpMacroAssemblerTracer::Backtrack() {
PrintF(" Backtrack();\n");
assembler_->Backtrack();
}
void RegExpMacroAssemblerTracer::GoTo(Label* label) {
PrintF(" GoTo(label[%08x]);\n\n", LabelToInt(label));
assembler_->GoTo(label);
}
void RegExpMacroAssemblerTracer::PushBacktrack(Label* label) {
PrintF(" PushBacktrack(label[%08x]);\n", LabelToInt(label));
assembler_->PushBacktrack(label);
}
bool RegExpMacroAssemblerTracer::Succeed() {
bool restart = assembler_->Succeed();
PrintF(" Succeed();%s\n", restart ? " [restart for global match]" : "");
return restart;
}
void RegExpMacroAssemblerTracer::Fail() {
PrintF(" Fail();");
assembler_->Fail();
}
void RegExpMacroAssemblerTracer::PopRegister(int register_index) {
PrintF(" PopRegister(register=%d);\n", register_index);
assembler_->PopRegister(register_index);
}
void RegExpMacroAssemblerTracer::PushRegister(
int register_index,
StackCheckFlag check_stack_limit) {
PrintF(" PushRegister(register=%d, %s);\n",
register_index,
check_stack_limit ? "check stack limit" : "");
assembler_->PushRegister(register_index, check_stack_limit);
}
void RegExpMacroAssemblerTracer::AdvanceRegister(int reg, int by) {
PrintF(" AdvanceRegister(register=%d, by=%d);\n", reg, by);
assembler_->AdvanceRegister(reg, by);
}
void RegExpMacroAssemblerTracer::SetCurrentPositionFromEnd(int by) {
PrintF(" SetCurrentPositionFromEnd(by=%d);\n", by);
assembler_->SetCurrentPositionFromEnd(by);
}
void RegExpMacroAssemblerTracer::SetRegister(int register_index, int to) {
PrintF(" SetRegister(register=%d, to=%d);\n", register_index, to);
assembler_->SetRegister(register_index, to);
}
void RegExpMacroAssemblerTracer::WriteCurrentPositionToRegister(int reg,
int cp_offset) {
PrintF(" WriteCurrentPositionToRegister(register=%d,cp_offset=%d);\n",
reg,
cp_offset);
assembler_->WriteCurrentPositionToRegister(reg, cp_offset);
}
void RegExpMacroAssemblerTracer::ClearRegisters(int reg_from, int reg_to) {
PrintF(" ClearRegister(from=%d, to=%d);\n", reg_from, reg_to);
assembler_->ClearRegisters(reg_from, reg_to);
}
void RegExpMacroAssemblerTracer::ReadCurrentPositionFromRegister(int reg) {
PrintF(" ReadCurrentPositionFromRegister(register=%d);\n", reg);
assembler_->ReadCurrentPositionFromRegister(reg);
}
void RegExpMacroAssemblerTracer::WriteStackPointerToRegister(int reg) {
PrintF(" WriteStackPointerToRegister(register=%d);\n", reg);
assembler_->WriteStackPointerToRegister(reg);
}
void RegExpMacroAssemblerTracer::ReadStackPointerFromRegister(int reg) {
PrintF(" ReadStackPointerFromRegister(register=%d);\n", reg);
assembler_->ReadStackPointerFromRegister(reg);
}
void RegExpMacroAssemblerTracer::LoadCurrentCharacter(int cp_offset,
Label* on_end_of_input,
bool check_bounds,
int characters) {
const char* check_msg = check_bounds ? "" : " (unchecked)";
PrintF(" LoadCurrentCharacter(cp_offset=%d, label[%08x]%s (%d chars));\n",
cp_offset,
LabelToInt(on_end_of_input),
check_msg,
characters);
assembler_->LoadCurrentCharacter(cp_offset,
on_end_of_input,
check_bounds,
characters);
}
class PrintablePrinter {
public:
explicit PrintablePrinter(uc16 character) : character_(character) { }
const char* operator*() {
if (character_ >= ' ' && character_ <= '~') {
buffer_[0] = '(';
buffer_[1] = static_cast<char>(character_);
buffer_[2] = ')';
buffer_[3] = '\0';
} else {
buffer_[0] = '\0';
}
return &buffer_[0];
};
private:
uc16 character_;
char buffer_[4];
};
void RegExpMacroAssemblerTracer::CheckCharacterLT(uc16 limit, Label* on_less) {
PrintablePrinter printable(limit);
PrintF(" CheckCharacterLT(c=0x%04x%s, label[%08x]);\n",
limit,
*printable,
LabelToInt(on_less));
assembler_->CheckCharacterLT(limit, on_less);
}
void RegExpMacroAssemblerTracer::CheckCharacterGT(uc16 limit,
Label* on_greater) {
PrintablePrinter printable(limit);
PrintF(" CheckCharacterGT(c=0x%04x%s, label[%08x]);\n",
limit,
*printable,
LabelToInt(on_greater));
assembler_->CheckCharacterGT(limit, on_greater);
}
void RegExpMacroAssemblerTracer::CheckCharacter(unsigned c, Label* on_equal) {
PrintablePrinter printable(c);
PrintF(" CheckCharacter(c=0x%04x%s, label[%08x]);\n",
c,
*printable,
LabelToInt(on_equal));
assembler_->CheckCharacter(c, on_equal);
}
void RegExpMacroAssemblerTracer::CheckAtStart(Label* on_at_start) {
PrintF(" CheckAtStart(label[%08x]);\n", LabelToInt(on_at_start));
assembler_->CheckAtStart(on_at_start);
}
void RegExpMacroAssemblerTracer::CheckNotAtStart(Label* on_not_at_start) {
PrintF(" CheckNotAtStart(label[%08x]);\n", LabelToInt(on_not_at_start));
assembler_->CheckNotAtStart(on_not_at_start);
}
void RegExpMacroAssemblerTracer::CheckNotCharacter(unsigned c,
Label* on_not_equal) {
PrintablePrinter printable(c);
PrintF(" CheckNotCharacter(c=0x%04x%s, label[%08x]);\n",
c,
*printable,
LabelToInt(on_not_equal));
assembler_->CheckNotCharacter(c, on_not_equal);
}
void RegExpMacroAssemblerTracer::CheckCharacterAfterAnd(
unsigned c,
unsigned mask,
Label* on_equal) {
PrintablePrinter printable(c);
PrintF(" CheckCharacterAfterAnd(c=0x%04x%s, mask=0x%04x, label[%08x]);\n",
c,
*printable,
mask,
LabelToInt(on_equal));
assembler_->CheckCharacterAfterAnd(c, mask, on_equal);
}
void RegExpMacroAssemblerTracer::CheckNotCharacterAfterAnd(
unsigned c,
unsigned mask,
Label* on_not_equal) {
PrintablePrinter printable(c);
PrintF(" CheckNotCharacterAfterAnd(c=0x%04x%s, mask=0x%04x, label[%08x]);\n",
c,
*printable,
mask,
LabelToInt(on_not_equal));
assembler_->CheckNotCharacterAfterAnd(c, mask, on_not_equal);
}
void RegExpMacroAssemblerTracer::CheckNotCharacterAfterMinusAnd(
uc16 c,
uc16 minus,
uc16 mask,
Label* on_not_equal) {
PrintF(" CheckNotCharacterAfterMinusAnd(c=0x%04x, minus=%04x, mask=0x%04x, "
"label[%08x]);\n",
c,
minus,
mask,
LabelToInt(on_not_equal));
assembler_->CheckNotCharacterAfterMinusAnd(c, minus, mask, on_not_equal);
}
void RegExpMacroAssemblerTracer::CheckCharacterInRange(
uc16 from,
uc16 to,
Label* on_not_in_range) {
PrintablePrinter printable_from(from);
PrintablePrinter printable_to(to);
PrintF(" CheckCharacterInRange(from=0x%04x%s, to=0x%04x%s, label[%08x]);\n",
from,
*printable_from,
to,
*printable_to,
LabelToInt(on_not_in_range));
assembler_->CheckCharacterInRange(from, to, on_not_in_range);
}
void RegExpMacroAssemblerTracer::CheckCharacterNotInRange(
uc16 from,
uc16 to,
Label* on_in_range) {
PrintablePrinter printable_from(from);
PrintablePrinter printable_to(to);
PrintF(
" CheckCharacterNotInRange(from=0x%04x%s," " to=%04x%s, label[%08x]);\n",
from,
*printable_from,
to,
*printable_to,
LabelToInt(on_in_range));
assembler_->CheckCharacterNotInRange(from, to, on_in_range);
}
void RegExpMacroAssemblerTracer::CheckBitInTable(
Handle<ByteArray> table, Label* on_bit_set) {
PrintF(" CheckBitInTable(label[%08x] ", LabelToInt(on_bit_set));
for (int i = 0; i < kTableSize; i++) {
PrintF("%c", table->get(i) != 0 ? 'X' : '.');
if (i % 32 == 31 && i != kTableMask) {
PrintF("\n ");
}
}
PrintF(");\n");
assembler_->CheckBitInTable(table, on_bit_set);
}
void RegExpMacroAssemblerTracer::CheckNotBackReference(int start_reg,
Label* on_no_match) {
PrintF(" CheckNotBackReference(register=%d, label[%08x]);\n", start_reg,
LabelToInt(on_no_match));
assembler_->CheckNotBackReference(start_reg, on_no_match);
}
void RegExpMacroAssemblerTracer::CheckNotBackReferenceIgnoreCase(
int start_reg,
Label* on_no_match) {
PrintF(" CheckNotBackReferenceIgnoreCase(register=%d, label[%08x]);\n",
start_reg, LabelToInt(on_no_match));
assembler_->CheckNotBackReferenceIgnoreCase(start_reg, on_no_match);
}
void RegExpMacroAssemblerTracer::CheckCharacters(Vector<const uc16> str,
int cp_offset,
Label* on_failure,
bool check_end_of_string) {
PrintF(" %s(str=\"",
check_end_of_string ? "CheckCharacters" : "CheckCharactersUnchecked");
for (int i = 0; i < str.length(); i++) {
PrintF("0x%04x", str[i]);
}
PrintF("\", cp_offset=%d, label[%08x])\n",
cp_offset, LabelToInt(on_failure));
assembler_->CheckCharacters(str, cp_offset, on_failure, check_end_of_string);
}
bool RegExpMacroAssemblerTracer::CheckSpecialCharacterClass(
uc16 type,
Label* on_no_match) {
bool supported = assembler_->CheckSpecialCharacterClass(type,
on_no_match);
PrintF(" CheckSpecialCharacterClass(type='%c', label[%08x]): %s;\n",
type,
LabelToInt(on_no_match),
supported ? "true" : "false");
return supported;
}
void RegExpMacroAssemblerTracer::IfRegisterLT(int register_index,
int comparand, Label* if_lt) {
PrintF(" IfRegisterLT(register=%d, number=%d, label[%08x]);\n",
register_index, comparand, LabelToInt(if_lt));
assembler_->IfRegisterLT(register_index, comparand, if_lt);
}
void RegExpMacroAssemblerTracer::IfRegisterEqPos(int register_index,
Label* if_eq) {
PrintF(" IfRegisterEqPos(register=%d, label[%08x]);\n",
register_index, LabelToInt(if_eq));
assembler_->IfRegisterEqPos(register_index, if_eq);
}
void RegExpMacroAssemblerTracer::IfRegisterGE(int register_index,
int comparand, Label* if_ge) {
PrintF(" IfRegisterGE(register=%d, number=%d, label[%08x]);\n",
register_index, comparand, LabelToInt(if_ge));
assembler_->IfRegisterGE(register_index, comparand, if_ge);
}
RegExpMacroAssembler::IrregexpImplementation
RegExpMacroAssemblerTracer::Implementation() {
return assembler_->Implementation();
}
Handle<HeapObject> RegExpMacroAssemblerTracer::GetCode(Handle<String> source) {
PrintF(" GetCode(%s);\n", *(source->ToCString()));
return assembler_->GetCode(source);
}
}} // namespace v8::internal