File: object.go

package info (click to toggle)
golang-github-robertkrimen-otto 0.0~git20200922.ef014fd-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye, sid
  • size: 1,796 kB
  • sloc: perl: 1,227; makefile: 79
file content (156 lines) | stat: -rw-r--r-- 3,728 bytes parent folder | download | duplicates (2)
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
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
package otto

type _object struct {
	runtime *_runtime

	class       string
	objectClass *_objectClass
	value       interface{}

	prototype  *_object
	extensible bool

	property      map[string]_property
	propertyOrder []string
}

func newObject(runtime *_runtime, class string) *_object {
	self := &_object{
		runtime:     runtime,
		class:       class,
		objectClass: _classObject,
		property:    make(map[string]_property),
		extensible:  true,
	}
	return self
}

// 8.12

// 8.12.1
func (self *_object) getOwnProperty(name string) *_property {
	return self.objectClass.getOwnProperty(self, name)
}

// 8.12.2
func (self *_object) getProperty(name string) *_property {
	return self.objectClass.getProperty(self, name)
}

// 8.12.3
func (self *_object) get(name string) Value {
	return self.objectClass.get(self, name)
}

// 8.12.4
func (self *_object) canPut(name string) bool {
	return self.objectClass.canPut(self, name)
}

// 8.12.5
func (self *_object) put(name string, value Value, throw bool) {
	self.objectClass.put(self, name, value, throw)
}

// 8.12.6
func (self *_object) hasProperty(name string) bool {
	return self.objectClass.hasProperty(self, name)
}

func (self *_object) hasOwnProperty(name string) bool {
	return self.objectClass.hasOwnProperty(self, name)
}

type _defaultValueHint int

const (
	defaultValueNoHint _defaultValueHint = iota
	defaultValueHintString
	defaultValueHintNumber
)

// 8.12.8
func (self *_object) DefaultValue(hint _defaultValueHint) Value {
	if hint == defaultValueNoHint {
		if self.class == "Date" {
			// Date exception
			hint = defaultValueHintString
		} else {
			hint = defaultValueHintNumber
		}
	}
	methodSequence := []string{"valueOf", "toString"}
	if hint == defaultValueHintString {
		methodSequence = []string{"toString", "valueOf"}
	}
	for _, methodName := range methodSequence {
		method := self.get(methodName)
		// FIXME This is redundant...
		if method.isCallable() {
			result := method._object().call(toValue_object(self), nil, false, nativeFrame)
			if result.IsPrimitive() {
				return result
			}
		}
	}

	panic(self.runtime.panicTypeError())
}

func (self *_object) String() string {
	return self.DefaultValue(defaultValueHintString).string()
}

func (self *_object) defineProperty(name string, value Value, mode _propertyMode, throw bool) bool {
	return self.defineOwnProperty(name, _property{value, mode}, throw)
}

// 8.12.9
func (self *_object) defineOwnProperty(name string, descriptor _property, throw bool) bool {
	return self.objectClass.defineOwnProperty(self, name, descriptor, throw)
}

func (self *_object) delete(name string, throw bool) bool {
	return self.objectClass.delete(self, name, throw)
}

func (self *_object) enumerate(all bool, each func(string) bool) {
	self.objectClass.enumerate(self, all, each)
}

func (self *_object) _exists(name string) bool {
	_, exists := self.property[name]
	return exists
}

func (self *_object) _read(name string) (_property, bool) {
	property, exists := self.property[name]
	return property, exists
}

func (self *_object) _write(name string, value interface{}, mode _propertyMode) {
	if value == nil {
		value = Value{}
	}
	_, exists := self.property[name]
	self.property[name] = _property{value, mode}
	if !exists {
		self.propertyOrder = append(self.propertyOrder, name)
	}
}

func (self *_object) _delete(name string) {
	_, exists := self.property[name]
	delete(self.property, name)
	if exists {
		for index, property := range self.propertyOrder {
			if name == property {
				if index == len(self.propertyOrder)-1 {
					self.propertyOrder = self.propertyOrder[:index]
				} else {
					self.propertyOrder = append(self.propertyOrder[:index], self.propertyOrder[index+1:]...)
				}
			}
		}
	}
}