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Merge pull request #514 from mcarton/remove-dup

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Remove dup
This commit is contained in:
Manish Goregaokar 2015-12-22 10:18:12 +05:30
commit ea03c0d9e3
2 changed files with 1 additions and 47 deletions
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2
CONTRIBUTING.md
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@ -28,7 +28,7 @@ how this syntax structure is encoded in the AST, it is recommended to run `rustc
example of the structure and compare with the
[nodes in the AST docs](http://manishearth.github.io/rust-internals-docs/syntax/ast/). Usually
the lint will end up to be a nested series of matches and ifs,
[like so](https://github.com/Manishearth/rust-clippy/blob/de5ccdfab68a5e37689f3c950ed1532ba9d652a0/src/misc.rs#L34)
[like so](https://github.com/Manishearth/rust-clippy/blob/de5ccdfab68a5e37689f3c950ed1532ba9d652a0/src/misc.rs#L34).
T-middle issues can be more involved and require verifying types. The
[`middle::ty`](http://manishearth.github.io/rust-internals-docs/rustc/middle/ty) module contains a

46
src/utils.rs
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@ -370,52 +370,6 @@ pub fn is_adjusted(cx: &LateContext, e: &Expr) -> bool {
cx.tcx.tables.borrow().adjustments.get(&e.id).is_some()
}
/// Produce a nested chain of if-lets and ifs from the patterns:
///
/// if_let_chain! {
/// [
/// Some(y) = x,
/// y.len() == 2,
/// Some(z) = y,
/// ],
/// {
/// block
/// }
/// }
///
/// becomes
///
/// if let Some(y) = x {
/// if y.len() == 2 {
/// if let Some(z) = y {
/// block
/// }
/// }
/// }
#[macro_export]
macro_rules! if_let_chain {
([let $pat:pat = $expr:expr, $($tt:tt)+], $block:block) => {
if let $pat = $expr {
if_let_chain!{ [$($tt)+], $block }
}
};
([let $pat:pat = $expr:expr], $block:block) => {
if let $pat = $expr {
$block
}
};
([$expr:expr, $($tt:tt)+], $block:block) => {
if $expr {
if_let_chain!{ [$($tt)+], $block }
}
};
([$expr:expr], $block:block) => {
if $expr {
$block
}
};
}
pub struct LimitStack {
stack: Vec<u64>,
}