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39
40#include "qv4propertykey_p.h"
41
42#include <QtCore/qstring.h>
43#include <qv4string_p.h>
44#include <qv4engine_p.h>
45#include <qv4scopedvalue_p.h>
46
47QV4::Heap::StringOrSymbol *QV4::PropertyKey::toStringOrSymbol(QV4::ExecutionEngine *e)
48{
49 if (isArrayIndex())
50 return Value::fromUInt32(i: asArrayIndex()).toString(e);
51 return static_cast<Heap::StringOrSymbol *>(asStringOrSymbol());
52}
53
54bool QV4::PropertyKey::isString() const {
55 Heap::StringOrSymbol *s = asStringOrSymbol();
56 return s && s->internalClass->vtable->isString;
57}
58
59bool QV4::PropertyKey::isSymbol() const {
60 Heap::Base *s = asStringOrSymbol();
61 return s && !s->internalClass->vtable->isString && s->internalClass->vtable->isStringOrSymbol;
62}
63
64bool QV4::PropertyKey::isCanonicalNumericIndexString() const
65{
66 if (isArrayIndex())
67 return true;
68 if (isSymbol())
69 return false;
70 Heap::String *s = static_cast<Heap::String *>(asStringOrSymbol());
71 Scope scope(s->internalClass->engine);
72 ScopedString str(scope, s);
73 double d = str->toNumber();
74 if (d == 0. && std::signbit(x: d))
75 return true;
76 ScopedString converted(scope, Value::fromDouble(d).toString(e: scope.engine));
77 if (converted->equals(other: str))
78 return true;
79 return false;
80}
81
82QString QV4::PropertyKey::toQString() const
83{
84 if (isArrayIndex())
85 return QString::number(asArrayIndex());
86 Heap::StringOrSymbol *s = asStringOrSymbol();
87 Q_ASSERT(s->internalClass->vtable->isStringOrSymbol);
88 return s->toQString();
89}
90
91QV4::Heap::String *QV4::PropertyKey::asFunctionName(ExecutionEngine *engine, FunctionNamePrefix prefix) const
92{
93 QString n;
94 if (prefix == Getter)
95 n = QStringLiteral("get ");
96 else if (prefix == Setter)
97 n = QStringLiteral("set ");
98 if (isArrayIndex())
99 n += QString::number(asArrayIndex());
100 else {
101 Heap::StringOrSymbol *s = asStringOrSymbol();
102 QString str = s->toQString();
103 if (s->internalClass->vtable->isString)
104 n += s->toQString();
105 else if (str.length() > 1)
106 n += QChar::fromLatin1(c: '[') + str.midRef(position: 1) + QChar::fromLatin1(c: ']');
107 }
108 return engine->newString(s: n);
109}
110

source code of qtdeclarative/src/qml/jsruntime/qv4propertykey.cpp