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
RUNTIME_FUNCTION(Runtime_CreateSymbol)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
RUNTIME_FUNCTION(Runtime_CreatePrivateSymbol)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
RUNTIME_FUNCTION(Runtime_SymbolDescription)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
RUNTIME_FUNCTION(Runtime_SymbolDescriptiveString)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
RUNTIME_FUNCTION(Runtime_SymbolRegistry)61 RUNTIME_FUNCTION(Runtime_SymbolRegistry) {
62 HandleScope scope(isolate);
63 DCHECK(args.length() == 0);
64 return *isolate->GetSymbolRegistry();
65 }
66
67
RUNTIME_FUNCTION(Runtime_SymbolIsPrivate)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