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786f874c34
changelog: none Sorry, this is a big one. A lot of interrelated changes and I wanted to put the new utils to use to make sure they are somewhat battle-tested. We may want to divide some of the lint-specific refactoring commits into batches for smaller reviewing tasks. I could also split into more PRs. Introduces a bunch of new utils at `clippy_utils::macros::...`. Please read through the docs and give any feedback! I'm happy to introduce `MacroCall` and various functions to retrieve an instance. It feels like the missing puzzle piece. I'm also introducing `ExpnId` from rustc as "useful for Clippy too". `@rust-lang/clippy` Fixes #7843 by not parsing every node of macro implementations, at least the major offenders. I probably want to get rid of `is_expn_of` at some point.
34 lines
761 B
Rust
34 lines
761 B
Rust
#![allow(non_fmt_panics)]
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macro_rules! assert_const {
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($len:expr) => {
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assert!($len > 0);
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debug_assert!($len < 0);
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};
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}
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fn main() {
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assert!(true);
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assert!(false);
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assert!(true, "true message");
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assert!(false, "false message");
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let msg = "panic message";
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assert!(false, "{}", msg.to_uppercase());
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const B: bool = true;
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assert!(B);
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const C: bool = false;
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assert!(C);
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assert!(C, "C message");
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debug_assert!(true);
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// Don't lint this, since there is no better way for expressing "Only panic in debug mode".
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debug_assert!(false); // #3948
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assert_const!(3);
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assert_const!(-1);
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// Don't lint on this:
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assert!(cfg!(feature = "hey") || cfg!(not(feature = "asdf")));
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}
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