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50312c847f
I broke writeback of byref arguments to functions with my RValue refactor, but assignment writeback (including destructuring assignments like (a, b) = (b, a)) should work. Add a test for it. Swift SVN r4731
86 lines
1.2 KiB
Swift
86 lines
1.2 KiB
Swift
// RUN: %swift %s -i | FileCheck %s
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struct Foo {
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var _x : (Int, Char, String)
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var x : (Int, String, Char) {
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get:
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var (a, b, c) = _x
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return (a, c, b)
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set:
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var (a, b, c) = value
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_x = (a, c, b)
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}
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constructor(a:Int, b:String, c:Char) {
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_x = (a, c, b)
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}
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}
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var foo = Foo(1, "two", '3')
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foo.x.0 = 4
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foo.x.1 = "five"
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foo.x.2 = '6'
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// CHECK: 4
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// CHECK: five
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// CHECK: 6
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println(foo.x.0)
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println(foo.x.1)
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println(foo.x.2)
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struct Bar {
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var _foo : Foo
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var foo : Foo {
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get:
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return _foo
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set:
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_foo = value
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}
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}
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var bar = Bar(Foo(1, "two", '3'))
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bar.foo.x.0 = 7
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bar.foo.x.1 = "eight"
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bar.foo.x.2 = '9'
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// CHECK: 7
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// CHECK: eight
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// CHECK: 9
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println(bar.foo.x.0)
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println(bar.foo.x.1)
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println(bar.foo.x.2)
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(foo, bar.foo) = (bar.foo, foo)
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// CHECK: 4
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// CHECK: five
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// CHECK: 6
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println(bar.foo.x.0)
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println(bar.foo.x.1)
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println(bar.foo.x.2)
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(foo.x, bar.foo.x) = (bar.foo.x, foo.x)
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// CHECK: 7
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// CHECK: eight
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// CHECK: 9
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println(bar.foo.x.0)
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println(bar.foo.x.1)
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println(bar.foo.x.2)
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(foo.x.0, bar.foo.x.0) = (bar.foo.x.0, foo.x.0)
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// CHECK: 4
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// CHECK: eight
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// CHECK: 9
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println(bar.foo.x.0)
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println(bar.foo.x.1)
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println(bar.foo.x.2)
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