mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-11-23 21:23:56 +00:00
Update to rustc 1.19.0-nightly (826d8f385 2017-05-13)
fixes #1759, #1758
This commit is contained in:
parent
dfc7d2afd4
commit
4d5e25f31d
14 changed files with 57 additions and 42 deletions
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@ -384,9 +384,10 @@ impl<'a, 'tcx> NonminimalBoolVisitor<'a, 'tcx> {
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NONMINIMAL_BOOL,
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e.span,
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"this boolean expression can be simplified",
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|db| for suggestion in &improvements {
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db.span_suggestion(e.span, "try", suggest(self.cx, suggestion, &h2q.terminals));
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break; // FIXME: multiple suggestions in rustc are broken
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|db| {
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db.span_suggestions(e.span, "try", improvements.into_iter().map(|suggestion| {
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suggest(self.cx, suggestion, &h2q.terminals)
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}).collect());
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});
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}
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}
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@ -136,7 +136,8 @@ fn check_hash_peq<'a, 'tcx>(
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/// Implementation of the `EXPL_IMPL_CLONE_ON_COPY` lint.
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fn check_copy_clone<'a, 'tcx>(cx: &LateContext<'a, 'tcx>, item: &Item, trait_ref: &TraitRef, ty: ty::Ty<'tcx>) {
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if match_path_old(&trait_ref.path, &paths::CLONE_TRAIT) {
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if !is_copy(cx, ty, item.id) {
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let def_id = cx.tcx.hir.local_def_id(item.id);
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if !is_copy(cx, ty, def_id) {
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return;
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}
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@ -136,7 +136,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Pass {
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&msg,
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arg.span,
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&format!("argument has type {}", arg_ty.sty));
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} else if is_copy(cx, arg_ty, cx.tcx.hir.get_parent(arg.id)) {
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} else if is_copy(cx, arg_ty, cx.tcx.hir.local_def_id(cx.tcx.hir.get_parent(arg.id))) {
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if match_def_path(cx.tcx, def_id, &paths::DROP) {
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lint = DROP_COPY;
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msg = DROP_COPY_SUMMARY.to_string();
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@ -76,6 +76,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for EqOp {
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BiLt | BiLe | BiGe | BiGt => (cx.tcx.lang_items.ord_trait(), true),
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};
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let parent = cx.tcx.hir.get_parent(e.id);
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let parent = cx.tcx.hir.local_def_id(parent);
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if let Some(trait_id) = trait_id {
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#[allow(match_same_arms)]
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match (&left.node, &right.node) {
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@ -873,7 +873,7 @@ impl<'tcx> Visitor<'tcx> for UsedVisitor {
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struct VarVisitor<'a, 'tcx: 'a> {
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cx: &'a LateContext<'a, 'tcx>, // context reference
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var: DefId, // var name to look for as index
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indexed: HashMap<Name, Option<CodeExtent<'tcx>>>, // indexed variables, the extent is None for global
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indexed: HashMap<Name, Option<CodeExtent>>, // indexed variables, the extent is None for global
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nonindex: bool, // has the var been used otherwise?
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}
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@ -657,8 +657,9 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Pass {
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}
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// check conventions w.r.t. conversion method names and predicates
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let ty = cx.tcx.type_of(cx.tcx.hir.local_def_id(item.id));
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let is_copy = is_copy(cx, ty, item.id);
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let def_id = cx.tcx.hir.local_def_id(item.id);
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let ty = cx.tcx.type_of(def_id);
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let is_copy = is_copy(cx, ty, def_id);
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for &(ref conv, self_kinds) in &CONVENTIONS {
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if_let_chain! {[
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conv.check(&name.as_str()),
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@ -683,8 +684,9 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Pass {
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}
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let ret_ty = return_ty(cx, implitem.id);
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let implitem_defid = cx.tcx.hir.local_def_id(implitem.id);
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if name == "new" &&
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!ret_ty.walk().any(|t| same_tys(cx, t, ty, implitem.id)) {
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!ret_ty.walk().any(|t| same_tys(cx, t, ty, implitem_defid)) {
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span_lint(cx,
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NEW_RET_NO_SELF,
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implitem.span,
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@ -837,7 +839,7 @@ fn lint_clone_on_copy(cx: &LateContext, expr: &hir::Expr, arg: &hir::Expr, arg_t
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}
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}
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if is_copy(cx, ty, parent) {
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if is_copy(cx, ty, cx.tcx.hir.local_def_id(parent)) {
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span_lint_and_then(cx,
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CLONE_ON_COPY,
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expr.span,
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@ -369,11 +369,11 @@ impl MiscEarly {
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"if you mean to use a decimal constant, remove the `0` to remove confusion:",
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src[1..].to_string(),
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);
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/*db.span_suggestion(
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db.span_suggestion(
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lit.span,
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"if you mean to use an octal constant, use `0o`:",
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format!("0o{}", &src[1..]),
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); FIXME: rustc doesn't support multiple suggestions anymore */
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);
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});
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}
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}}
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@ -79,15 +79,15 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for NeedlessPassByValue {
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let asref_trait = need!(get_trait_def_id(cx, &paths::ASREF_TRAIT));
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let borrow_trait = need!(get_trait_def_id(cx, &paths::BORROW_TRAIT));
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let fn_def_id = cx.tcx.hir.local_def_id(node_id);
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let preds: Vec<ty::Predicate> = {
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let parameter_env = ty::ParameterEnvironment::for_item(cx.tcx, node_id);
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let parameter_env = cx.tcx.parameter_environment(fn_def_id);
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traits::elaborate_predicates(cx.tcx, parameter_env.caller_bounds.to_vec())
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.filter(|p| !p.is_global())
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.collect()
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};
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let fn_def_id = cx.tcx.hir.local_def_id(node_id);
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// Collect moved variables and spans which will need dereferencings from the function body.
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let MovedVariablesCtxt { moved_vars, spans_need_deref, .. } = {
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let mut ctx = MovedVariablesCtxt::new(cx);
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@ -100,9 +100,8 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for NeedlessPassByValue {
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ctx
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};
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let param_env = ty::ParameterEnvironment::for_item(cx.tcx, node_id);
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let fn_sig = cx.tcx.type_of(fn_def_id).fn_sig();
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let fn_sig = cx.tcx.liberate_late_bound_regions(param_env.free_id_outlive, &fn_sig);
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let fn_sig = cx.tcx.erase_late_bound_regions(&fn_sig);
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for ((input, &ty), arg) in decl.inputs.iter().zip(fn_sig.inputs()).zip(&body.arguments) {
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@ -120,7 +119,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for NeedlessPassByValue {
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if_let_chain! {[
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!is_self(arg),
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!ty.is_mutable_pointer(),
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!is_copy(cx, ty, node_id),
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!is_copy(cx, ty, fn_def_id),
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!implements_trait(cx, ty, fn_trait, &[], Some(node_id)),
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!implements_trait(cx, ty, asref_trait, &[], Some(node_id)),
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!implements_borrow_trait,
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@ -108,12 +108,13 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for NewWithoutDefault {
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// can't be implemented by default
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return;
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}
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let def_id = cx.tcx.hir.local_def_id(id);
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if decl.inputs.is_empty() && name == "new" && cx.access_levels.is_reachable(id) {
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let self_ty = cx.tcx
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.type_of(cx.tcx.hir.local_def_id(cx.tcx.hir.get_parent(id)));
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if_let_chain!{[
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self_ty.walk_shallow().next().is_none(), // implements_trait does not work with generics
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same_tys(cx, self_ty, return_ty(cx, id), id),
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same_tys(cx, self_ty, return_ty(cx, id), def_id),
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let Some(default_trait_id) = get_trait_def_id(cx, &paths::DEFAULT_TRAIT),
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!implements_trait(cx, self_ty, default_trait_id, &[], None)
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], {
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@ -7,7 +7,7 @@ use rustc::lint::{LintContext, LateContext, Level, Lint};
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use rustc::session::Session;
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use rustc::traits::Reveal;
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use rustc::traits;
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use rustc::ty::subst::Subst;
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use rustc::ty::subst::{Subst, Substs};
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use rustc::ty;
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use rustc::ty::layout::TargetDataLayout;
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use rustc::mir::transform::MirSource;
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@ -18,7 +18,7 @@ use std::mem;
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use std::str::FromStr;
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use syntax::ast::{self, LitKind};
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use syntax::attr;
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use syntax::codemap::{ExpnFormat, ExpnInfo, MultiSpan, Span, DUMMY_SP};
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use syntax::codemap::{ExpnFormat, ExpnInfo, Span, DUMMY_SP};
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use syntax::errors::DiagnosticBuilder;
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use syntax::ptr::P;
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use syntax::symbol::keywords;
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@ -594,12 +594,10 @@ pub fn span_lint_and_sugg<'a, 'tcx: 'a, T: LintContext<'tcx>>(
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/// replacement. In human-readable format though, it only appears once before the whole suggestion.
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pub fn multispan_sugg(db: &mut DiagnosticBuilder, help_msg: String, sugg: Vec<(Span, String)>) {
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let sugg = rustc_errors::CodeSuggestion {
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msp: MultiSpan::from_spans(sugg.iter().map(|&(span, _)| span).collect()),
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substitutes: sugg.into_iter().map(|(_, subs)| subs).collect(),
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substitution_parts: sugg.into_iter().map(|(span, sub)| rustc_errors::Substitution { span, substitutions: vec![sub] }).collect(),
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msg: help_msg,
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};
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assert!(db.suggestion.is_none());
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db.suggestion = Some(sugg);
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db.suggestions.push(sugg);
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}
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/// Return the base type for references and raw pointers.
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@ -777,11 +775,9 @@ pub fn camel_case_from(s: &str) -> usize {
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/// Convenience function to get the return type of a function
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pub fn return_ty<'a, 'tcx>(cx: &LateContext<'a, 'tcx>, fn_item: NodeId) -> ty::Ty<'tcx> {
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let parameter_env = ty::ParameterEnvironment::for_item(cx.tcx, fn_item);
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let fn_def_id = cx.tcx.hir.local_def_id(fn_item);
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let fn_sig = cx.tcx.type_of(fn_def_id).fn_sig();
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let fn_sig = cx.tcx.liberate_late_bound_regions(parameter_env.free_id_outlive, &fn_sig);
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fn_sig.output()
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let ret_ty = cx.tcx.type_of(fn_def_id).fn_sig().output();
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cx.tcx.erase_late_bound_regions(&ret_ty)
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}
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/// Check if two types are the same.
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@ -791,12 +787,13 @@ pub fn same_tys<'a, 'tcx>(
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cx: &LateContext<'a, 'tcx>,
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a: ty::Ty<'tcx>,
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b: ty::Ty<'tcx>,
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parameter_item: NodeId
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parameter_item: DefId
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) -> bool {
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let parameter_env = ty::ParameterEnvironment::for_item(cx.tcx, parameter_item);
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let parameter_env = cx.tcx.parameter_environment(parameter_item);
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cx.tcx.infer_ctxt(parameter_env, Reveal::All).enter(|infcx| {
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let new_a = a.subst(infcx.tcx, infcx.parameter_environment.free_substs);
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let new_b = b.subst(infcx.tcx, infcx.parameter_environment.free_substs);
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let substs = Substs::identity_for_item(cx.tcx, parameter_item);
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let new_a = a.subst(infcx.tcx, substs);
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let new_b = b.subst(infcx.tcx, substs);
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infcx.can_equate(&new_a, &new_b).is_ok()
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})
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}
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@ -810,9 +807,10 @@ pub fn type_is_unsafe_function(ty: ty::Ty) -> bool {
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}
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}
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pub fn is_copy<'a, 'tcx>(cx: &LateContext<'a, 'tcx>, ty: ty::Ty<'tcx>, env: NodeId) -> bool {
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let env = ty::ParameterEnvironment::for_item(cx.tcx, env);
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!ty.subst(cx.tcx, env.free_substs).moves_by_default(cx.tcx.global_tcx(), &env, DUMMY_SP)
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pub fn is_copy<'a, 'tcx>(cx: &LateContext<'a, 'tcx>, ty: ty::Ty<'tcx>, env: DefId) -> bool {
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let substs = Substs::identity_for_item(cx.tcx, env);
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let env = cx.tcx.parameter_environment(env);
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!ty.subst(cx.tcx, substs).moves_by_default(cx.tcx.global_tcx(), &env, DUMMY_SP)
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}
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/// Return whether a pattern is refutable.
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@ -47,7 +47,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Pass {
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if_let_chain!{[
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let Some((_, arg, _)) = higher::for_loop(expr),
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let Some(vec_args) = higher::vec_macro(cx, arg),
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is_copy(cx, vec_type(cx.tables.expr_ty_adjusted(arg)), cx.tcx.hir.get_parent(expr.id)),
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is_copy(cx, vec_type(cx.tables.expr_ty_adjusted(arg)), cx.tcx.hir.local_def_id(cx.tcx.hir.get_parent(expr.id))),
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], {
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// report the error around the `vec!` not inside `<std macros>:`
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let span = arg.span.ctxt.outer().expn_info().map(|info| info.call_site).expect("unable to get call_site");
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@ -79,13 +79,21 @@ error: this boolean expression can be simplified
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--> $DIR/booleans.rs:34:13
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34 | let _ = a == b && c == 5 && a == b;
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try `a == b && c == 5`
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^
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help: try
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| let _ = a == b && c == 5;
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| let _ = !(c != 5 || a != b);
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error: this boolean expression can be simplified
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--> $DIR/booleans.rs:35:13
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35 | let _ = a == b && c == 5 && b == a;
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try `a == b && c == 5`
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^
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help: try
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| let _ = a == b && c == 5;
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| let _ = !(c != 5 || a != b);
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error: this boolean expression contains a logic bug
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--> $DIR/booleans.rs:36:13
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@ -115,7 +123,11 @@ error: this boolean expression can be simplified
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--> $DIR/booleans.rs:39:13
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39 | let _ = a != b || !(a != b || c == d);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try `c != d || a != b`
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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help: try
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| let _ = c != d || a != b;
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| let _ = !(a == b && c == d);
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error: aborting due to 13 previous errors
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@ -71,6 +71,8 @@ note: lint level defined here
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| ^^^^^^^^^^^^^^^^^^^^^
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help: if you mean to use a decimal constant, remove the `0` to remove confusion:
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| let fail8 = 123;
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help: if you mean to use an octal constant, use `0o`:
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| let fail8 = 0o123;
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error: aborting due to 9 previous errors
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@ -11,7 +11,6 @@ note: lint level defined here
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^
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help: try this
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| #[derive(Default)]
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| pub struct Foo;
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error: you should consider deriving a `Default` implementation for `Bar`
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--> $DIR/new_without_default.rs:16:5
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@ -21,7 +20,6 @@ error: you should consider deriving a `Default` implementation for `Bar`
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help: try this
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| #[derive(Default)]
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| pub struct Bar;
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error: you should consider adding a `Default` implementation for `LtKo<'c>`
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--> $DIR/new_without_default.rs:64:5
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