Nuke the entire ctfe from orbit, it's the only way to be sure

[rust.git] / src / librustc_lint / builtin.rs

diff --git a/src/librustc_lint/builtin.rs b/src/librustc_lint/builtin.rs
index 62ac898337ca9a13f083cdad8d1bf5aa5115a28d..831d4fc755f8f03490bcd76051ad790fd29e60e1 100644 (file)
--- a/src/librustc_lint/builtin.rs
+++ b/src/librustc_lint/builtin.rs
@@ -682,78 +682,6 @@ fn check_attribute(&mut self, cx: &EarlyContext, attr: &ast::Attribute) {
     }
 }
 
-declare_lint! {
-    pub ILLEGAL_FLOATING_POINT_LITERAL_PATTERN,
-    Warn,
-    "floating-point literals cannot be used in patterns"
-}
-
-/// Checks for floating point literals in patterns.
-#[derive(Clone)]
-pub struct IllegalFloatLiteralPattern;
-
-impl LintPass for IllegalFloatLiteralPattern {
-    fn get_lints(&self) -> LintArray {
-        lint_array!(ILLEGAL_FLOATING_POINT_LITERAL_PATTERN)
-    }
-}
-
-fn fl_lit_check_expr(cx: &EarlyContext, expr: &ast::Expr) {
-    use self::ast::{ExprKind, LitKind};
-    match expr.node {
-        ExprKind::Lit(ref l) => {
-            match l.node {
-                LitKind::FloatUnsuffixed(..) |
-                LitKind::Float(..) => {
-                    cx.span_lint(ILLEGAL_FLOATING_POINT_LITERAL_PATTERN,
-                                 l.span,
-                                 "floating-point literals cannot be used in patterns");
-                    },
-                _ => (),
-            }
-        }
-        // These may occur in patterns
-        // and can maybe contain float literals
-        ExprKind::Unary(_, ref f) => fl_lit_check_expr(cx, f),
-        // Other kinds of exprs can't occur in patterns so we don't have to check them
-        // (ast_validation will emit an error if they occur)
-        _ => (),
-    }
-}
-
-impl EarlyLintPass for IllegalFloatLiteralPattern {
-    fn check_pat(&mut self, cx: &EarlyContext, pat: &ast::Pat) {
-        use self::ast::PatKind;
-        pat.walk(&mut |p| {
-            match p.node {
-                // Wildcard patterns and paths are uninteresting for the lint
-                PatKind::Wild |
-                PatKind::Path(..) => (),
-
-                // The walk logic recurses inside these
-                PatKind::Ident(..) |
-                PatKind::Struct(..) |
-                PatKind::Tuple(..) |
-                PatKind::TupleStruct(..) |
-                PatKind::Ref(..) |
-                PatKind::Box(..) |
-                PatKind::Paren(..) |
-                PatKind::Slice(..) => (),
-
-                // Extract the expressions and check them
-                PatKind::Lit(ref e) => fl_lit_check_expr(cx, e),
-                PatKind::Range(ref st, ref en, _) => {
-                    fl_lit_check_expr(cx, st);
-                    fl_lit_check_expr(cx, en);
-                },
-
-                PatKind::Mac(_) => bug!("lint must run post-expansion"),
-            }
-            true
-        });
-    }
-}
-
 declare_lint! {
     pub UNUSED_DOC_COMMENT,
     Warn,