1 // Copyright 2014 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "src/runtime/runtime-utils.h" 6 7 #include "src/arguments.h" 8 #include "src/isolate-inl.h" 9 #include "src/objects-inl.h" 10 #include "src/string-builder.h" 11 12 namespace v8 { 13 namespace internal { 14 15 RUNTIME_FUNCTION(Runtime_CreateSymbol) { 16 HandleScope scope(isolate); 17 DCHECK(args.length() == 1); 18 CONVERT_ARG_HANDLE_CHECKED(Object, name, 0); 19 RUNTIME_ASSERT(name->IsString() || name->IsUndefined()); 20 Handle<Symbol> symbol = isolate->factory()->NewSymbol(); 21 if (name->IsString()) symbol->set_name(*name); 22 return *symbol; 23 } 24 25 26 RUNTIME_FUNCTION(Runtime_CreatePrivateSymbol) { 27 HandleScope scope(isolate); 28 DCHECK(args.length() == 1); 29 CONVERT_ARG_HANDLE_CHECKED(Object, name, 0); 30 RUNTIME_ASSERT(name->IsString() || name->IsUndefined()); 31 Handle<Symbol> symbol = isolate->factory()->NewPrivateSymbol(); 32 if (name->IsString()) symbol->set_name(*name); 33 return *symbol; 34 } 35 36 37 RUNTIME_FUNCTION(Runtime_SymbolDescription) { 38 SealHandleScope shs(isolate); 39 DCHECK(args.length() == 1); 40 CONVERT_ARG_CHECKED(Symbol, symbol, 0); 41 return symbol->name(); 42 } 43 44 45 RUNTIME_FUNCTION(Runtime_SymbolDescriptiveString) { 46 HandleScope scope(isolate); 47 DCHECK_EQ(1, args.length()); 48 CONVERT_ARG_HANDLE_CHECKED(Symbol, symbol, 0); 49 IncrementalStringBuilder builder(isolate); 50 builder.AppendCString("Symbol("); 51 if (symbol->name()->IsString()) { 52 builder.AppendString(handle(String::cast(symbol->name()), isolate)); 53 } 54 builder.AppendCharacter(')'); 55 Handle<String> result; 56 ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result, builder.Finish()); 57 return *result; 58 } 59 60 61 RUNTIME_FUNCTION(Runtime_SymbolRegistry) { 62 HandleScope scope(isolate); 63 DCHECK(args.length() == 0); 64 return *isolate->GetSymbolRegistry(); 65 } 66 67 68 RUNTIME_FUNCTION(Runtime_SymbolIsPrivate) { 69 SealHandleScope shs(isolate); 70 DCHECK(args.length() == 1); 71 CONVERT_ARG_CHECKED(Symbol, symbol, 0); 72 return isolate->heap()->ToBoolean(symbol->is_private()); 73 } 74 } // namespace internal 75 } // namespace v8 76
