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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #include "src/compiler.h" | 7 #include "src/compiler.h" |
8 | 8 |
9 #include "src/bootstrapper.h" | 9 #include "src/bootstrapper.h" |
10 #include "src/codegen.h" | 10 #include "src/codegen.h" |
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926 bool is_shared_cross_origin, | 926 bool is_shared_cross_origin, |
927 Handle<Context> context, | 927 Handle<Context> context, |
928 v8::Extension* extension, | 928 v8::Extension* extension, |
929 ScriptData** cached_data, | 929 ScriptData** cached_data, |
930 CachedDataMode cached_data_mode, | 930 CachedDataMode cached_data_mode, |
931 NativesFlag natives) { | 931 NativesFlag natives) { |
932 if (cached_data_mode == NO_CACHED_DATA) { | 932 if (cached_data_mode == NO_CACHED_DATA) { |
933 cached_data = NULL; | 933 cached_data = NULL; |
934 } else if (cached_data_mode == PRODUCE_CACHED_DATA) { | 934 } else if (cached_data_mode == PRODUCE_CACHED_DATA) { |
935 ASSERT(cached_data && !*cached_data); | 935 ASSERT(cached_data && !*cached_data); |
| 936 ASSERT(extension == NULL); |
936 } else { | 937 } else { |
937 ASSERT(cached_data_mode == CONSUME_CACHED_DATA); | 938 ASSERT(cached_data_mode == CONSUME_CACHED_DATA); |
938 ASSERT(cached_data && *cached_data); | 939 ASSERT(cached_data && *cached_data); |
| 940 ASSERT(extension == NULL); |
939 } | 941 } |
940 Isolate* isolate = source->GetIsolate(); | 942 Isolate* isolate = source->GetIsolate(); |
941 int source_length = source->length(); | 943 int source_length = source->length(); |
942 isolate->counters()->total_load_size()->Increment(source_length); | 944 isolate->counters()->total_load_size()->Increment(source_length); |
943 isolate->counters()->total_compile_size()->Increment(source_length); | 945 isolate->counters()->total_compile_size()->Increment(source_length); |
944 | 946 |
945 CompilationCache* compilation_cache = isolate->compilation_cache(); | 947 CompilationCache* compilation_cache = isolate->compilation_cache(); |
946 | 948 |
947 // Do a lookup in the compilation cache but not for extensions. | 949 // Do a lookup in the compilation cache but not for extensions. |
948 MaybeHandle<SharedFunctionInfo> maybe_result; | 950 MaybeHandle<SharedFunctionInfo> maybe_result; |
949 Handle<SharedFunctionInfo> result; | 951 Handle<SharedFunctionInfo> result; |
950 if (extension == NULL) { | 952 if (extension == NULL) { |
951 maybe_result = compilation_cache->LookupScript( | 953 maybe_result = compilation_cache->LookupScript( |
952 source, script_name, line_offset, column_offset, | 954 source, script_name, line_offset, column_offset, |
953 is_shared_cross_origin, context); | 955 is_shared_cross_origin, context); |
| 956 if (maybe_result.is_null() && FLAG_serialize_toplevel && |
| 957 cached_data_mode == CONSUME_CACHED_DATA) { |
| 958 Object* des = CodeSerializer::Deserialize(isolate, *cached_data); |
| 959 return handle(SharedFunctionInfo::cast(des), isolate); |
| 960 } |
954 } | 961 } |
955 | 962 |
956 if (!maybe_result.ToHandle(&result)) { | 963 if (!maybe_result.ToHandle(&result)) { |
957 // No cache entry found. Compile the script. | 964 // No cache entry found. Compile the script. |
958 | 965 |
959 // Create a script object describing the script to be compiled. | 966 // Create a script object describing the script to be compiled. |
960 Handle<Script> script = isolate->factory()->NewScript(source); | 967 Handle<Script> script = isolate->factory()->NewScript(source); |
961 if (natives == NATIVES_CODE) { | 968 if (natives == NATIVES_CODE) { |
962 script->set_type(Smi::FromInt(Script::TYPE_NATIVE)); | 969 script->set_type(Smi::FromInt(Script::TYPE_NATIVE)); |
963 } | 970 } |
964 if (!script_name.is_null()) { | 971 if (!script_name.is_null()) { |
965 script->set_name(*script_name); | 972 script->set_name(*script_name); |
966 script->set_line_offset(Smi::FromInt(line_offset)); | 973 script->set_line_offset(Smi::FromInt(line_offset)); |
967 script->set_column_offset(Smi::FromInt(column_offset)); | 974 script->set_column_offset(Smi::FromInt(column_offset)); |
968 } | 975 } |
969 script->set_is_shared_cross_origin(is_shared_cross_origin); | 976 script->set_is_shared_cross_origin(is_shared_cross_origin); |
970 | 977 |
971 // Compile the function and add it to the cache. | 978 // Compile the function and add it to the cache. |
972 CompilationInfoWithZone info(script); | 979 CompilationInfoWithZone info(script); |
973 info.MarkAsGlobal(); | 980 info.MarkAsGlobal(); |
| 981 info.SetCachedData(cached_data, cached_data_mode); |
974 info.SetExtension(extension); | 982 info.SetExtension(extension); |
975 info.SetCachedData(cached_data, cached_data_mode); | |
976 info.SetContext(context); | 983 info.SetContext(context); |
977 if (FLAG_use_strict) info.SetStrictMode(STRICT); | 984 if (FLAG_use_strict) info.SetStrictMode(STRICT); |
| 985 |
978 result = CompileToplevel(&info); | 986 result = CompileToplevel(&info); |
979 if (extension == NULL && !result.is_null() && !result->dont_cache()) { | 987 if (extension == NULL && !result.is_null() && !result->dont_cache()) { |
980 compilation_cache->PutScript(source, context, result); | 988 compilation_cache->PutScript(source, context, result); |
| 989 if (FLAG_serialize_toplevel && cached_data_mode == PRODUCE_CACHED_DATA) { |
| 990 *cached_data = CodeSerializer::Serialize(result); |
| 991 } |
981 } | 992 } |
982 if (result.is_null()) isolate->ReportPendingMessages(); | 993 if (result.is_null()) isolate->ReportPendingMessages(); |
983 } else if (result->ic_age() != isolate->heap()->global_ic_age()) { | 994 } else if (result->ic_age() != isolate->heap()->global_ic_age()) { |
984 result->ResetForNewContext(isolate->heap()->global_ic_age()); | 995 result->ResetForNewContext(isolate->heap()->global_ic_age()); |
985 } | 996 } |
986 return result; | 997 return result; |
987 } | 998 } |
988 | 999 |
989 | 1000 |
990 Handle<SharedFunctionInfo> Compiler::BuildFunctionInfo(FunctionLiteral* literal, | 1001 Handle<SharedFunctionInfo> Compiler::BuildFunctionInfo(FunctionLiteral* literal, |
991 Handle<Script> script) { | 1002 Handle<Script> script) { |
992 // Precondition: code has been parsed and scopes have been analyzed. | 1003 // Precondition: code has been parsed and scopes have been analyzed. |
993 CompilationInfoWithZone info(script); | 1004 CompilationInfoWithZone info(script); |
994 info.SetFunction(literal); | 1005 info.SetFunction(literal); |
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1310 AllowHandleDereference allow_deref; | 1321 AllowHandleDereference allow_deref; |
1311 bool tracing_on = info()->IsStub() | 1322 bool tracing_on = info()->IsStub() |
1312 ? FLAG_trace_hydrogen_stubs | 1323 ? FLAG_trace_hydrogen_stubs |
1313 : (FLAG_trace_hydrogen && | 1324 : (FLAG_trace_hydrogen && |
1314 info()->closure()->PassesFilter(FLAG_trace_hydrogen_filter)); | 1325 info()->closure()->PassesFilter(FLAG_trace_hydrogen_filter)); |
1315 return (tracing_on && | 1326 return (tracing_on && |
1316 base::OS::StrChr(const_cast<char*>(FLAG_trace_phase), name_[0]) != NULL); | 1327 base::OS::StrChr(const_cast<char*>(FLAG_trace_phase), name_[0]) != NULL); |
1317 } | 1328 } |
1318 | 1329 |
1319 } } // namespace v8::internal | 1330 } } // namespace v8::internal |
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