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Issue 607004: Add central bridge for liveedit support (Closed)
Patch Set: fix comment Created 10 years, 10 months ago
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1 // Copyright 2009 the V8 project authors. All rights reserved. 1 // Copyright 2009 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 27
28 #include "v8.h" 28 #include "v8.h"
29 29
30 #include "codegen-inl.h" 30 #include "codegen-inl.h"
31 #include "compiler.h" 31 #include "compiler.h"
32 #include "full-codegen.h" 32 #include "full-codegen.h"
33 #include "stub-cache.h" 33 #include "stub-cache.h"
34 #include "debug.h" 34 #include "debug.h"
35 #include "liveedit.h"
35 36
36 namespace v8 { 37 namespace v8 {
37 namespace internal { 38 namespace internal {
38 39
39 #define BAILOUT(reason) \ 40 #define BAILOUT(reason) \
40 do { \ 41 do { \
41 if (FLAG_trace_bailout) { \ 42 if (FLAG_trace_bailout) { \
42 PrintF("%s\n", reason); \ 43 PrintF("%s\n", reason); \
43 } \ 44 } \
44 has_supported_syntax_ = false; \ 45 has_supported_syntax_ = false; \
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441 442
442 Handle<Code> FullCodeGenerator::MakeCode(CompilationInfo* info) { 443 Handle<Code> FullCodeGenerator::MakeCode(CompilationInfo* info) {
443 Handle<Script> script = info->script(); 444 Handle<Script> script = info->script();
444 if (!script->IsUndefined() && !script->source()->IsUndefined()) { 445 if (!script->IsUndefined() && !script->source()->IsUndefined()) {
445 int len = String::cast(script->source())->length(); 446 int len = String::cast(script->source())->length();
446 Counters::total_full_codegen_source_size.Increment(len); 447 Counters::total_full_codegen_source_size.Increment(len);
447 } 448 }
448 CodeGenerator::MakeCodePrologue(info); 449 CodeGenerator::MakeCodePrologue(info);
449 const int kInitialBufferSize = 4 * KB; 450 const int kInitialBufferSize = 4 * KB;
450 MacroAssembler masm(NULL, kInitialBufferSize); 451 MacroAssembler masm(NULL, kInitialBufferSize);
452 LiveEditFunctionTracker live_edit_tracker(info->function());
453
451 FullCodeGenerator cgen(&masm); 454 FullCodeGenerator cgen(&masm);
452 cgen.Generate(info, PRIMARY); 455 cgen.Generate(info, PRIMARY);
453 if (cgen.HasStackOverflow()) { 456 if (cgen.HasStackOverflow()) {
454 ASSERT(!Top::has_pending_exception()); 457 ASSERT(!Top::has_pending_exception());
455 return Handle<Code>::null(); 458 return Handle<Code>::null();
456 } 459 }
457 Code::Flags flags = Code::ComputeFlags(Code::FUNCTION, NOT_IN_LOOP); 460 Code::Flags flags = Code::ComputeFlags(Code::FUNCTION, NOT_IN_LOOP);
458 return CodeGenerator::MakeCodeEpilogue(&masm, flags, info); 461 Handle<Code> result = CodeGenerator::MakeCodeEpilogue(&masm, flags, info);
462 live_edit_tracker.RecordFunctionCode(result);
463 return result;
459 } 464 }
460 465
461 466
462 int FullCodeGenerator::SlotOffset(Slot* slot) { 467 int FullCodeGenerator::SlotOffset(Slot* slot) {
463 ASSERT(slot != NULL); 468 ASSERT(slot != NULL);
464 // Offset is negative because higher indexes are at lower addresses. 469 // Offset is negative because higher indexes are at lower addresses.
465 int offset = -slot->index() * kPointerSize; 470 int offset = -slot->index() * kPointerSize;
466 // Adjust by a (parameter or local) base offset. 471 // Adjust by a (parameter or local) base offset.
467 switch (slot->type()) { 472 switch (slot->type()) {
468 case Slot::PARAMETER: 473 case Slot::PARAMETER:
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1150 // The macros used here must preserve the result register. 1155 // The macros used here must preserve the result register.
1151 __ Drop(stack_depth); 1156 __ Drop(stack_depth);
1152 __ PopTryHandler(); 1157 __ PopTryHandler();
1153 return 0; 1158 return 0;
1154 } 1159 }
1155 1160
1156 #undef __ 1161 #undef __
1157 1162
1158 1163
1159 } } // namespace v8::internal 1164 } } // namespace v8::internal
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