mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-11-23 21:23:56 +00:00
62 lines
2.3 KiB
Rust
62 lines
2.3 KiB
Rust
#![feature(plugin)]
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#![plugin(clippy)]
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#[deny(eq_op)]
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#[allow(identity_op, double_parens)]
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#[allow(no_effect, unused_variables, unnecessary_operation, short_circuit_statement)]
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#[deny(nonminimal_bool)]
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fn main() {
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// simple values and comparisons
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1 == 1; //~ERROR equal expressions
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"no" == "no"; //~ERROR equal expressions
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// even though I agree that no means no ;-)
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false != false; //~ERROR equal expressions
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1.5 < 1.5; //~ERROR equal expressions
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1u64 >= 1u64; //~ERROR equal expressions
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// casts, methods, parentheses
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(1 as u64) & (1 as u64); //~ERROR equal expressions
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1 ^ ((((((1)))))); //~ERROR equal expressions
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// unary and binary operators
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(-(2) < -(2)); //~ERROR equal expressions
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((1 + 1) & (1 + 1) == (1 + 1) & (1 + 1));
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//~^ ERROR equal expressions as operands to `==`
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//~^^ ERROR equal expressions as operands to `&`
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//~^^^ ERROR equal expressions as operands to `&`
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(1 * 2) + (3 * 4) == 1 * 2 + 3 * 4; //~ERROR equal expressions
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// various other things
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([1] != [1]); //~ERROR equal expressions
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((1, 2) != (1, 2)); //~ERROR equal expressions
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vec![1, 2, 3] == vec![1, 2, 3]; //no error yet, as we don't match macros
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// const folding
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1 + 1 == 2; //~ERROR equal expressions
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1 - 1 == 0; //~ERROR equal expressions as operands to `==`
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//~^ ERROR equal expressions as operands to `-`
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1 - 1; //~ERROR equal expressions
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1 / 1; //~ERROR equal expressions
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true && true; //~ERROR equal expressions
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//~|ERROR this boolean expression can be simplified
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true || true; //~ERROR equal expressions
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//~|ERROR this boolean expression can be simplified
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let a: u32 = 0;
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let b: u32 = 0;
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a == b && b == a; //~ERROR equal expressions
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//~|ERROR this boolean expression can be simplified
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a != b && b != a; //~ERROR equal expressions
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//~|ERROR this boolean expression can be simplified
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a < b && b > a; //~ERROR equal expressions
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//~|ERROR this boolean expression can be simplified
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a <= b && b >= a; //~ERROR equal expressions
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//~|ERROR this boolean expression can be simplified
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let mut a = vec![1];
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a == a; //~ERROR equal expressions
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2*a.len() == 2*a.len(); // ok, functions
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a.pop() == a.pop(); // ok, functions
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}
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