| 1 | ## our_shell: ysh
|
| 2 | ## oils_failures_allowed: 2
|
| 3 |
|
| 4 | #### Object() creates prototype chain
|
| 5 |
|
| 6 | func Rect_area(this) {
|
| 7 | return (this.x * this.y)
|
| 8 | }
|
| 9 |
|
| 10 | var Rect = Object(null, {area: Rect_area})
|
| 11 |
|
| 12 | var rect1 = Object(Rect, {x: 3, y: 4})
|
| 13 | var rect2 = Object(Rect, {x: 10, y: 20})
|
| 14 |
|
| 15 | # This could change to show the object?
|
| 16 | # pp test_ (rect)
|
| 17 |
|
| 18 | # TODO: This should be a bound function
|
| 19 | #pp asdl_ (rect)
|
| 20 | #pp (rect.area)
|
| 21 | #pp (rect->area)
|
| 22 |
|
| 23 | var area1 = rect1.area()
|
| 24 | var area2 = rect2.area()
|
| 25 |
|
| 26 | pp test_ ([rect1.x, rect1.y])
|
| 27 | echo "area1 = $area1"
|
| 28 |
|
| 29 | pp test_ ([rect2.x, rect2.y])
|
| 30 | echo "area2 = $area2"
|
| 31 |
|
| 32 | #pp test_ (rect1.nonexistent)
|
| 33 |
|
| 34 | ## STDOUT:
|
| 35 | (List) [3,4]
|
| 36 | area1 = 12
|
| 37 | (List) [10,20]
|
| 38 | area2 = 200
|
| 39 | ## END
|
| 40 |
|
| 41 | #### prototype()
|
| 42 |
|
| 43 | func Rect_area(this) {
|
| 44 | return (this.x * this.y)
|
| 45 | }
|
| 46 |
|
| 47 | var Rect = Object(null, {area: Rect_area})
|
| 48 |
|
| 49 | var obj = Object(Rect, {x: 3, y: 4})
|
| 50 |
|
| 51 | pp test_ (prototype(Rect))
|
| 52 | pp test_ (prototype(obj))
|
| 53 |
|
| 54 | ## STDOUT:
|
| 55 | (Null) null
|
| 56 | (Obj) {"area":<Func>}
|
| 57 | ## END
|
| 58 |
|
| 59 | #### propView()
|
| 60 |
|
| 61 | var obj = Object(null, {x: 3, y: 4})
|
| 62 | var props = propView(obj)
|
| 63 |
|
| 64 | pp test_ (props)
|
| 65 |
|
| 66 | # object can be mutated
|
| 67 | setvar props.x = 99
|
| 68 |
|
| 69 | pp test_ (props)
|
| 70 |
|
| 71 | var e = propView(null) # error
|
| 72 |
|
| 73 | ## status: 3
|
| 74 | ## STDOUT:
|
| 75 | (Dict) {"x":3,"y":4}
|
| 76 | (Dict) {"x":99,"y":4}
|
| 77 | ## END
|
| 78 |
|
| 79 | #### Mutating method lookup with ->
|
| 80 |
|
| 81 | func inc(self, n) {
|
| 82 | setvar self.i += n
|
| 83 | }
|
| 84 | var Counter_methods = Object(null, {'M/inc': inc})
|
| 85 |
|
| 86 | var c = Object(Counter_methods, {i: 5})
|
| 87 |
|
| 88 | echo $[c.i]
|
| 89 | call c->inc(3)
|
| 90 | echo $[c.i]
|
| 91 |
|
| 92 | ## STDOUT:
|
| 93 | 5
|
| 94 | 8
|
| 95 | ## END
|
| 96 |
|
| 97 | #### Copy to Dict with dict(), and mutate
|
| 98 |
|
| 99 | var rect = Object(null, {x: 3, y: 4})
|
| 100 | var d = dict(rect)
|
| 101 |
|
| 102 | pp test_ (rect)
|
| 103 | pp test_ (d)
|
| 104 |
|
| 105 | # Right now, object attributes aren't mutable! Could change this.
|
| 106 | #
|
| 107 | setvar rect.x = 99
|
| 108 | setvar d.x = 100
|
| 109 |
|
| 110 | pp test_ (rect)
|
| 111 | pp test_ (d)
|
| 112 | ## STDOUT:
|
| 113 | (Obj) {"x":3,"y":4}
|
| 114 | (Dict) {"x":3,"y":4}
|
| 115 | (Obj) {"x":99,"y":4}
|
| 116 | (Dict) {"x":100,"y":4}
|
| 117 | ## END
|
| 118 |
|
| 119 | #### setvar obj.attr = and += and ...
|
| 120 |
|
| 121 | var rect = Object(null, {x: 3, y: 4})
|
| 122 | pp test_ (rect)
|
| 123 |
|
| 124 | setvar rect.y = 99
|
| 125 | pp test_ (rect)
|
| 126 |
|
| 127 | setvar rect.y += 3
|
| 128 | pp test_ (rect)
|
| 129 |
|
| 130 | setvar rect.x *= 5
|
| 131 | pp test_ (rect)
|
| 132 |
|
| 133 | ## STDOUT:
|
| 134 | (Obj) {"x":3,"y":4}
|
| 135 | (Obj) {"x":3,"y":99}
|
| 136 | (Obj) {"x":3,"y":102}
|
| 137 | (Obj) {"x":15,"y":102}
|
| 138 | ## END
|
| 139 |
|
| 140 | #### can't encode objects as JSON
|
| 141 |
|
| 142 | var Rect = Object(null, {})
|
| 143 |
|
| 144 | json write (Rect)
|
| 145 | echo 'nope'
|
| 146 |
|
| 147 | ## status: 1
|
| 148 | ## STDOUT:
|
| 149 | ## END
|
| 150 |
|
| 151 | #### pretty printing of cycles
|
| 152 |
|
| 153 | var d = {k: 42}
|
| 154 | setvar d.cycle = d
|
| 155 |
|
| 156 | pp test_ (d)
|
| 157 |
|
| 158 | var o = Object(null, d)
|
| 159 |
|
| 160 | pp test_ (o)
|
| 161 |
|
| 162 | var o2 = Object(o, {z: 99})
|
| 163 |
|
| 164 | pp test_ (o2)
|
| 165 |
|
| 166 | ## STDOUT:
|
| 167 | ## END
|
| 168 |
|
| 169 | #### Can all builtin methods with s.upper()
|
| 170 |
|
| 171 | var s = 'foo'
|
| 172 | var x = s.upper()
|
| 173 | var y = "--$[x.lower()]"
|
| 174 |
|
| 175 | pp test_ (x)
|
| 176 | pp test_ (y)
|
| 177 |
|
| 178 | ## STDOUT:
|
| 179 | (Str) "FOO"
|
| 180 | (Str) "--foo"
|
| 181 | ## END
|
| 182 |
|
| 183 |
|
| 184 | #### Dict.keys(d), Dict.values(d), Dict.get(d, key)
|
| 185 |
|
| 186 | var d = {a: 42, b: 99}
|
| 187 |
|
| 188 | pp test_ (Dict.keys(d))
|
| 189 | pp test_ (Dict.values(d))
|
| 190 |
|
| 191 | pp test_ (Dict.get(d, 'key', 'default'))
|
| 192 |
|
| 193 | # mutating methods are OK?
|
| 194 | # call d->inc(x)
|
| 195 |
|
| 196 | ## STDOUT:
|
| 197 | ## END
|
| 198 |
|