49 lines
1.3 KiB
Rust
49 lines
1.3 KiB
Rust
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// Testing that method lookup automatically both borrows vectors to slices
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// and also references them to create the &self pointer
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trait MyIter {
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pure fn test_imm(&self);
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pure fn test_const(&const self);
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}
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impl &[int]: MyIter {
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pure fn test_imm(&self) { assert self[0] == 1 }
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pure fn test_const(&const self) { assert self[0] == 1 }
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}
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impl &str: MyIter {
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pure fn test_imm(&self) { assert *self == "test" }
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pure fn test_const(&const self) { assert *self == "test" }
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}
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fn main() {
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// NB: Associativity of ~, etc. in this context is surprising. These must be parenthesized
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([1]).test_imm();
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(~[1]).test_imm();
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(@[1]).test_imm();
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(&[1]).test_imm();
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("test").test_imm();
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(~"test").test_imm();
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(@"test").test_imm();
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(&"test").test_imm();
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// XXX: Other types of mutable vecs don't currently exist
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(@mut [1]).test_imm();
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([1]).test_const();
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(~[1]).test_const();
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(@[1]).test_const();
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(&[1]).test_const();
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("test").test_const();
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(~"test").test_const();
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(@"test").test_const();
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(&"test").test_const();
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(@mut [1]).test_const();
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// NB: We don't do this double autoreffing for &mut self because that would
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// allow creating a mutable pointer to a temporary, which would be a source
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// of confusion
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}
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