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Rustup to *1.11.0-nightly (763f9234b 2016-06-06)*

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This commit is contained in:
mcarton 2016-06-08 12:21:24 +02:00
parent f4726c0ad8
commit 3415a18feb
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1 changed files with 21 additions and 1 deletions
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22
clippy_lints/src/misc.rs
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@ -6,6 +6,7 @@ use rustc::middle::const_val::ConstVal;
use rustc::ty;
use rustc_const_eval::EvalHint::ExprTypeChecked;
use rustc_const_eval::eval_const_expr_partial;
use rustc_const_math::ConstFloat;
use syntax::codemap::{Span, Spanned, ExpnFormat};
use syntax::ptr::P;
use utils::{
@ -182,7 +183,26 @@ impl LateLintPass for FloatCmp {
fn is_allowed(cx: &LateContext, expr: &Expr) -> bool {
let res = eval_const_expr_partial(cx.tcx, expr, ExprTypeChecked, None);
if let Ok(ConstVal::Float(val)) = res {
val == 0.0 || val == ::std::f64::INFINITY || val == ::std::f64::NEG_INFINITY
use std::cmp::Ordering;
let zero = ConstFloat::FInfer {
f32: 0.0,
f64: 0.0,
};
let infinity = ConstFloat::FInfer {
f32: ::std::f32::INFINITY,
f64: ::std::f64::INFINITY,
};
let neg_infinity = ConstFloat::FInfer {
f32: ::std::f32::NEG_INFINITY,
f64: ::std::f64::NEG_INFINITY,
};
val.try_cmp(zero) == Ok(Ordering::Equal)
|| val.try_cmp(infinity) == Ok(Ordering::Equal)
|| val.try_cmp(neg_infinity) == Ok(Ordering::Equal)
} else {
false
}