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