1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
#include "../bindings/JSBuffer.h"
#include "../bindings/ZigGlobalObject.h"
#include "JavaScriptCore/JSGlobalObject.h"
#include "JavaScriptCore/ObjectConstructor.h"
namespace Zig {
using namespace WebCore;
using namespace JSC;
JSC_DEFINE_HOST_FUNCTION(jsFunctionNotImplemented,
(JSGlobalObject * globalObject,
CallFrame *callFrame)) {
VM &vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
throwException(globalObject, scope,
createError(globalObject, "Not implemented"_s));
return JSValue::encode(jsUndefined());
}
inline JSValue
generateBufferSourceCode(JSC::JSGlobalObject *lexicalGlobalObject,
JSC::Identifier moduleKey,
Vector<JSC::Identifier, 4> &exportNames,
JSC::MarkedArgumentBuffer &exportValues) {
JSC::VM &vm = lexicalGlobalObject->vm();
GlobalObject *globalObject =
reinterpret_cast<GlobalObject *>(lexicalGlobalObject);
JSC::JSObject *defaultObject = JSC::constructEmptyObject(
globalObject, globalObject->objectPrototype(), 12);
defaultObject->putDirect(vm,
PropertyName(Identifier::fromUid(
vm.symbolRegistry().symbolForKey("CommonJS"_s))),
jsNumber(0), 0);
auto exportProperty = [&](JSC::Identifier name, JSC::JSValue value) {
exportNames.append(name);
exportValues.append(value);
defaultObject->putDirect(vm, name, value, 0);
};
exportProperty(JSC::Identifier::fromString(vm, "Buffer"_s),
globalObject->JSBufferConstructor());
auto *slowBuffer = JSC::JSFunction::create(
vm, globalObject, 0, "SlowBuffer"_s, WebCore::constructSlowBuffer,
ImplementationVisibility::Public, NoIntrinsic,
WebCore::constructSlowBuffer);
slowBuffer->putDirect(
vm, vm.propertyNames->prototype, globalObject->JSBufferPrototype(),
JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::DontEnum |
JSC::PropertyAttribute::DontDelete);
exportProperty(JSC::Identifier::fromString(vm, "SlowBuffer"_s), slowBuffer);
auto blobIdent = JSC::Identifier::fromString(vm, "Blob"_s);
JSValue blobValue =
lexicalGlobalObject->get(globalObject, PropertyName(blobIdent));
exportProperty(blobIdent, blobValue);
// TODO: implement File
exportProperty(JSC::Identifier::fromString(vm, "File"_s), blobValue);
exportProperty(JSC::Identifier::fromString(vm, "INSPECT_MAX_BYTES"_s),
JSC::jsNumber(50));
exportProperty(JSC::Identifier::fromString(vm, "kMaxLength"_s),
JSC::jsNumber(4294967296LL));
exportProperty(JSC::Identifier::fromString(vm, "kStringMaxLength"_s),
JSC::jsNumber(536870888));
JSC::JSObject *constants = JSC::constructEmptyObject(
lexicalGlobalObject, globalObject->objectPrototype(), 2);
constants->putDirect(vm, JSC::Identifier::fromString(vm, "MAX_LENGTH"_s),
JSC::jsNumber(4294967296LL));
constants->putDirect(vm,
JSC::Identifier::fromString(vm, "MAX_STRING_LENGTH"_s),
JSC::jsNumber(536870888));
exportProperty(JSC::Identifier::fromString(vm, "constants"_s), constants);
JSC::Identifier atobI = JSC::Identifier::fromString(vm, "atob"_s);
JSC::JSValue atobV =
lexicalGlobalObject->get(globalObject, PropertyName(atobI));
JSC::Identifier btoaI = JSC::Identifier::fromString(vm, "btoa"_s);
JSC::JSValue btoaV =
lexicalGlobalObject->get(globalObject, PropertyName(btoaI));
exportProperty(atobI, atobV);
exportProperty(btoaI, btoaV);
auto *transcode = InternalFunction::createFunctionThatMasqueradesAsUndefined(
vm, globalObject, 1, "transcode"_s, jsFunctionNotImplemented);
exportProperty(JSC::Identifier::fromString(vm, "transcode"_s), transcode);
auto *resolveObjectURL =
InternalFunction::createFunctionThatMasqueradesAsUndefined(
vm, globalObject, 1, "resolveObjectURL"_s, jsFunctionNotImplemented);
exportProperty(JSC::Identifier::fromString(vm, "resolveObjectURL"_s),
resolveObjectURL);
exportNames.append(vm.propertyNames->defaultKeyword);
exportValues.append(defaultObject);
return {};
}
} // namespace Zig
|
