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39 #ifndef QMLJS_RUNTIME_H
40 #define QMLJS_RUNTIME_H
41
42 //
43 // W A R N I N G
44 // -------------
45 //
46 // This file is not part of the Qt API. It exists purely as an
47 // implementation detail. This header file may change from version to
48 // version without notice, or even be removed.
49 //
50 // We mean it.
51 //
52
53 #include "qv4global_p.h"
54 #include "qv4value_p.h"
55 #include "qv4math_p.h"
56 #include "qv4runtimeapi_p.h"
57 #include <QtCore/qnumeric.h>
58
59 QT_BEGIN_NAMESPACE
60
61 #undef QV4_COUNT_RUNTIME_FUNCTIONS
62
63 namespace QV4 {
64
65 #ifdef QV4_COUNT_RUNTIME_FUNCTIONS
66 class RuntimeCounters
67 {
68 public:
69 RuntimeCounters();
70 ~RuntimeCounters();
71
72 static RuntimeCounters *instance;
73
74 void count(const char *func);
75 void count(const char *func, uint tag);
76 void count(const char *func, uint tag1, uint tag2);
77
78 private:
79 struct Data;
80 Data *d;
81 };
82
83 # define TRACE0() RuntimeCounters::instance->count(Q_FUNC_INFO);
84 # define TRACE1(x) RuntimeCounters::instance->count(Q_FUNC_INFO, x.type());
85 # define TRACE2(x, y) RuntimeCounters::instance->count(Q_FUNC_INFO, x.type(), y.type());
86 #else
87 # define TRACE0()
88 # define TRACE1(x)
89 # define TRACE2(x, y)
90 #endif // QV4_COUNT_RUNTIME_FUNCTIONS
91
92 enum TypeHint {
93 PREFERREDTYPE_HINT,
94 NUMBER_HINT,
95 STRING_HINT
96 };
97
98 struct Q_QML_PRIVATE_EXPORT RuntimeHelpers {
99 static ReturnedValue objectDefaultValue(const Object *object, int typeHint);
100 static ReturnedValue toPrimitive(const Value &value, TypeHint typeHint);
101 static ReturnedValue ordinaryToPrimitive(ExecutionEngine *engine, const Object *object, String *typeHint);
102
103 static double stringToNumber(const QString &s);
104 static Heap::String *stringFromNumber(ExecutionEngine *engine, double number);
105 static double toNumber(const Value &value);
106 static void numberToString(QString *result, double num, int radix = 10);
107
108 static Heap::String *convertToString(ExecutionEngine *engine, Value value, TypeHint = STRING_HINT);
109 static Heap::Object *convertToObject(ExecutionEngine *engine, const Value &value);
110
111 static Bool equalHelper(const Value &x, const Value &y);
112 static Bool strictEqual(const Value &x, const Value &y);
113
114 static ReturnedValue addHelper(ExecutionEngine *engine, const Value &left, const Value &right);
115 };
116
117
118 // type conversion and testing
toPrimitive(const Value & value,TypeHint typeHint)119 inline ReturnedValue RuntimeHelpers::toPrimitive(const Value &value, TypeHint typeHint)
120 {
121 if (!value.isObject())
122 return value.asReturnedValue();
123 return RuntimeHelpers::objectDefaultValue(&reinterpret_cast<const Object &>(value), typeHint);
124 }
125
toNumber(const Value & value)126 inline double RuntimeHelpers::toNumber(const Value &value)
127 {
128 return value.toNumber();
129 }
130 } // namespace QV4
131
132 QT_END_NAMESPACE
133
134 #endif // QMLJS_RUNTIME_H
135