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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 
toStringOrSymbol(QV4::ExecutionEngine * e)47 QV4::Heap::StringOrSymbol *QV4::PropertyKey::toStringOrSymbol(QV4::ExecutionEngine *e)
48 {
49     if (isArrayIndex())
50         return Value::fromUInt32(asArrayIndex()).toString(e);
51     return static_cast<Heap::StringOrSymbol *>(asStringOrSymbol());
52 }
53 
isString() const54 bool QV4::PropertyKey::isString() const {
55     Heap::StringOrSymbol *s = asStringOrSymbol();
56     return s && s->internalClass->vtable->isString;
57 }
58 
isSymbol() const59 bool QV4::PropertyKey::isSymbol() const {
60     Heap::Base *s = asStringOrSymbol();
61     return s && !s->internalClass->vtable->isString && s->internalClass->vtable->isStringOrSymbol;
62 }
63 
isCanonicalNumericIndexString() const64 bool 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(d))
75         return true;
76     ScopedString converted(scope, Value::fromDouble(d).toString(scope.engine));
77     if (converted->equals(str))
78         return true;
79     return false;
80 }
81 
toQString() const82 QString 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 
asFunctionName(ExecutionEngine * engine,FunctionNamePrefix prefix) const91 QV4::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('[') + str.midRef(1) + QChar::fromLatin1(']');
107     }
108     return engine->newString(n);
109 }
110