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_EQ(1, args.length());
18 CONVERT_ARG_HANDLE_CHECKED(Object, name, 0);
19 CHECK(name->IsString() || name->IsUndefined(isolate));
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_EQ(1, args.length());
29 CONVERT_ARG_HANDLE_CHECKED(Object, name, 0);
30 CHECK(name->IsString() || name->IsUndefined(isolate));
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_EQ(1, args.length());
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 RETURN_RESULT_OR_FAILURE(isolate, builder.Finish());
56 }
57
58
RUNTIME_FUNCTION(Runtime_SymbolIsPrivate)59 RUNTIME_FUNCTION(Runtime_SymbolIsPrivate) {
60 SealHandleScope shs(isolate);
61 DCHECK_EQ(1, args.length());
62 CONVERT_ARG_CHECKED(Symbol, symbol, 0);
63 return isolate->heap()->ToBoolean(symbol->is_private());
64 }
65 } // namespace internal
66 } // namespace v8
67