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Disable cast_lossless on const items

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letheed 2017-12-11 16:16:44 +01:00
parent f5f0273f53
commit 2703e74440
1 changed files with 3 additions and 1 deletions
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4
clippy_lints/src/types.rs
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@ -13,7 +13,7 @@ use syntax::ast::{FloatTy, IntTy, UintTy};
use syntax::attr::IntType;
use syntax::codemap::Span;
use syntax::errors::DiagnosticBuilder;
use utils::{comparisons, higher, in_external_macro, in_macro, last_path_segment, match_def_path, match_path,
use utils::{comparisons, higher, in_constant, in_external_macro, in_macro, last_path_segment, match_def_path, match_path,
multispan_sugg, opt_def_id, same_tys, snippet, snippet_opt, span_help_and_lint, span_lint,
span_lint_and_sugg, span_lint_and_then, type_size};
use utils::paths;
@ -608,6 +608,8 @@ fn should_strip_parens(op: &Expr, snip: &str) -> bool {
}
fn span_lossless_lint(cx: &LateContext, expr: &Expr, op: &Expr, cast_from: Ty, cast_to: Ty) {
// Do not suggest using From in consts/statics until it is valid to do so (see #2267).
if in_constant(cx, expr.id) { return }
// The suggestion is to use a function call, so if the original expression
// has parens on the outside, they are no longer needed.
let opt = snippet_opt(cx, op.span);