pub mod mutex_atomic;
pub mod zero_div_zero;
pub mod open_options;
+pub mod needless_features;
mod reexport {
pub use syntax::ast::{Name, Ident, NodeId};
reg.register_late_lint_pass(box open_options::NonSensicalOpenOptions);
reg.register_late_lint_pass(box zero_div_zero::ZeroDivZeroPass);
reg.register_late_lint_pass(box mutex_atomic::MutexAtomic);
+ reg.register_late_lint_pass(box needless_features::NeedlessFeaturesPass);
reg.register_lint_group("clippy_pedantic", vec![
methods::OPTION_UNWRAP_USED,
mut_reference::UNNECESSARY_MUT_PASSED,
mutex_atomic::MUTEX_ATOMIC,
needless_bool::NEEDLESS_BOOL,
+ needless_features::AS_SLICE,
+ needless_features::AS_MUT_SLICE,
open_options::NONSENSICAL_OPEN_OPTIONS,
precedence::PRECEDENCE,
ptr_arg::PTR_ARG,
--- /dev/null
+//! Checks for usage of nightly features that have simple stable equivalents
+//!
+//! This lint is **warn** by default
+
+use rustc::lint::*;
+use rustc_front::hir::*;
+
+use utils::{span_lint};
+
+declare_lint! {
+ pub AS_SLICE,
+ Warn,
+ "as_slice is not stable and can be replaced by & v[..]\
+see https://github.com/rust-lang/rust/issues/27729"
+}
+
+declare_lint! {
+ pub AS_MUT_SLICE,
+ Warn,
+ "as_mut_slice is not stable and can be replaced by &mut v[..]\
+see https://github.com/rust-lang/rust/issues/27729"
+}
+
+
+#[derive(Copy,Clone)]
+pub struct NeedlessFeaturesPass;
+
+impl LintPass for NeedlessFeaturesPass {
+ fn get_lints(&self) -> LintArray {
+ lint_array!(AS_SLICE,AS_MUT_SLICE)
+ }
+}
+
+impl LateLintPass for NeedlessFeaturesPass {
+ fn check_expr(&mut self, cx: &LateContext, expr: &Expr) {
+ if let ExprMethodCall(ref name, _, _) = expr.node {
+ if name.node.as_str() == "as_slice" {
+ span_lint(cx, AS_SLICE, expr.span,
+ "used as_slice() from the 'convert' nightly feature. Use &[..] \
+ instead");
+ }
+ if name.node.as_str() == "as_mut_slice" {
+ span_lint(cx, AS_MUT_SLICE, expr.span,
+ "used as_mut_slice() from the 'convert' nightly feature. Use &mut [..] \
+ instead");
+ }
+ }
+ }
+}
\ No newline at end of file