75 lines
1.7 KiB
Rust
75 lines
1.7 KiB
Rust
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#![feature(plugin)]
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#![plugin(clippy)]
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fn get_number() -> usize {
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10
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}
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fn get_reference(n : &usize) -> &usize {
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n
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}
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#[allow(many_single_char_names)]
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#[allow(unused_variables)]
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#[deny(deref_addrof)]
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fn main() {
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let a = 10;
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let aref = &a;
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let b = *&a;
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//~^ERROR immediately dereferencing a reference
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//~|HELP try this
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//~|SUGGESTION a
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let b = *&get_number();
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//~^ERROR immediately dereferencing a reference
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//~|HELP try this
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//~|SUGGESTION get_number()
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let b = *get_reference(&a);
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let bytes : Vec<usize> = vec![1, 2, 3, 4];
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let b = *&bytes[1..2][0];
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//~^ERROR immediately dereferencing a reference
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//~|HELP try this
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//~|SUGGESTION bytes[1..2][0]
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let b = *(&a);
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//~^ERROR immediately dereferencing a reference
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//~|HELP try this
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//~|SUGGESTION a
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let b = *&&a;
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//~^ERROR immediately dereferencing a reference
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//~|HELP try this
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//~|SUGGESTION &a
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let b = **&aref;
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//~^ERROR immediately dereferencing a reference
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//~|HELP try this
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//~|SUGGESTION aref
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//This produces a suggestion of 'let b = *&a;' which is still incorrect
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let b = **&&a;
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//~^ERROR immediately dereferencing a reference
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//~|HELP try this
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//~|SUGGESTION a
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{
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let mut x = 10;
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let y = *&mut x;
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//~^ERROR immediately dereferencing a reference
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//~|HELP try this
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//~|SUGGESTION x
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}
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{
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//This produces a suggestion of 'let y = *&mut x' which is still incorrect
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let mut x = 10;
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let y = **&mut &mut x;
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//~^ERROR immediately dereferencing a reference
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//~|HELP try this
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//~|SUGGESTION x
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}
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}
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