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Auto merge of #38191 - oli-obk:clippy_is_sad, r=eddyb

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annotate stricter lifetimes on LateLintPass methods to allow them to forward to a Visitor

this unblocks clippy (rustup blocked after #37918)

clippy has lots of lints that internally call an `intravisit::Visitor`, but the current lifetimes on `LateLintPass` methods conflicted with the required lifetimes (there was no connection between the HIR elements and the `TyCtxt`)

r? @Manishearth
This commit is contained in:
bors 2016-12-07 23:06:10 +00:00
commit 7b06438d83
32 changed files with 417 additions and 365 deletions
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4
src/librustc/hir/check_attr.rs
View File

@ -129,8 +129,8 @@ impl<'a> CheckAttrVisitor<'a> {
}
}
impl<'a> Visitor for CheckAttrVisitor<'a> {
fn visit_item(&mut self, item: &ast::Item) {
impl<'a> Visitor<'a> for CheckAttrVisitor<'a> {
fn visit_item(&mut self, item: &'a ast::Item) {
let target = Target::from_item(item);
for attr in &item.attrs {
self.check_attribute(attr, target);

6
src/librustc/hir/lowering.rs
View File

@ -143,14 +143,14 @@ impl<'a> LoweringContext<'a> {
lctx: &'lcx mut LoweringContext<'interner>,
}
impl<'lcx, 'interner> Visitor for ItemLowerer<'lcx, 'interner> {
fn visit_item(&mut self, item: &Item) {
impl<'lcx, 'interner> Visitor<'lcx> for ItemLowerer<'lcx, 'interner> {
fn visit_item(&mut self, item: &'lcx Item) {
let hir_item = self.lctx.lower_item(item);
self.lctx.items.insert(item.id, hir_item);
visit::walk_item(self, item);
}
fn visit_impl_item(&mut self, item: &ImplItem) {
fn visit_impl_item(&mut self, item: &'lcx ImplItem) {
let id = self.lctx.lower_impl_item_ref(item).id;
let hir_item = self.lctx.lower_impl_item(item);
self.lctx.impl_items.insert(id, hir_item);

24
src/librustc/hir/map/def_collector.rs
View File

@ -135,8 +135,8 @@ impl<'a> DefCollector<'a> {
}
}
impl<'a> visit::Visitor for DefCollector<'a> {
fn visit_item(&mut self, i: &Item) {
impl<'a> visit::Visitor<'a> for DefCollector<'a> {
fn visit_item(&mut self, i: &'a Item) {
debug!("visit_item: {:?}", i);
// Pick the def data. This need not be unique, but the more
@ -211,7 +211,7 @@ impl<'a> visit::Visitor for DefCollector<'a> {
});
}
fn visit_foreign_item(&mut self, foreign_item: &ForeignItem) {
fn visit_foreign_item(&mut self, foreign_item: &'a ForeignItem) {
let def = self.create_def(foreign_item.id,
DefPathData::ValueNs(foreign_item.ident.name.as_str()));
@ -220,7 +220,7 @@ impl<'a> visit::Visitor for DefCollector<'a> {
});
}
fn visit_generics(&mut self, generics: &Generics) {
fn visit_generics(&mut self, generics: &'a Generics) {
for ty_param in generics.ty_params.iter() {
self.create_def(ty_param.id, DefPathData::TypeParam(ty_param.ident.name.as_str()));
}
@ -228,7 +228,7 @@ impl<'a> visit::Visitor for DefCollector<'a> {
visit::walk_generics(self, generics);
}
fn visit_trait_item(&mut self, ti: &TraitItem) {
fn visit_trait_item(&mut self, ti: &'a TraitItem) {
let def_data = match ti.node {
TraitItemKind::Method(..) | TraitItemKind::Const(..) =>
DefPathData::ValueNs(ti.ident.name.as_str()),
@ -246,7 +246,7 @@ impl<'a> visit::Visitor for DefCollector<'a> {
});
}
fn visit_impl_item(&mut self, ii: &ImplItem) {
fn visit_impl_item(&mut self, ii: &'a ImplItem) {
let def_data = match ii.node {
ImplItemKind::Method(..) | ImplItemKind::Const(..) =>
DefPathData::ValueNs(ii.ident.name.as_str()),
@ -264,7 +264,7 @@ impl<'a> visit::Visitor for DefCollector<'a> {
});
}
fn visit_pat(&mut self, pat: &Pat) {
fn visit_pat(&mut self, pat: &'a Pat) {
let parent_def = self.parent_def;
match pat.node {
@ -280,7 +280,7 @@ impl<'a> visit::Visitor for DefCollector<'a> {
self.parent_def = parent_def;
}
fn visit_expr(&mut self, expr: &Expr) {
fn visit_expr(&mut self, expr: &'a Expr) {
let parent_def = self.parent_def;
match expr.node {
@ -297,7 +297,7 @@ impl<'a> visit::Visitor for DefCollector<'a> {
self.parent_def = parent_def;
}
fn visit_ty(&mut self, ty: &Ty) {
fn visit_ty(&mut self, ty: &'a Ty) {
match ty.node {
TyKind::Mac(..) => return self.visit_macro_invoc(ty.id, false),
TyKind::Array(_, ref length) => self.visit_ast_const_integer(length),
@ -309,15 +309,15 @@ impl<'a> visit::Visitor for DefCollector<'a> {
visit::walk_ty(self, ty);
}
fn visit_lifetime_def(&mut self, def: &LifetimeDef) {
fn visit_lifetime_def(&mut self, def: &'a LifetimeDef) {
self.create_def(def.lifetime.id, DefPathData::LifetimeDef(def.lifetime.name.as_str()));
}
fn visit_macro_def(&mut self, macro_def: &MacroDef) {
fn visit_macro_def(&mut self, macro_def: &'a MacroDef) {
self.create_def(macro_def.id, DefPathData::MacroDef(macro_def.ident.name.as_str()));
}
fn visit_stmt(&mut self, stmt: &Stmt) {
fn visit_stmt(&mut self, stmt: &'a Stmt) {
match stmt.node {
StmtKind::Mac(..) => self.visit_macro_invoc(stmt.id, false),
_ => visit::walk_stmt(self, stmt),

2
src/librustc/lint/builtin.rs
View File

@ -262,4 +262,4 @@ impl LintPass for HardwiredLints {
}
}
impl LateLintPass for HardwiredLints {}
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for HardwiredLints {}

72
src/librustc/lint/context.rs
View File

@ -496,13 +496,13 @@ pub fn raw_struct_lint<'a, S>(sess: &'a Session,
err
}
pub trait LintContext: Sized {
pub trait LintContext<'tcx>: Sized {
fn sess(&self) -> &Session;
fn lints(&self) -> &LintStore;
fn mut_lints(&mut self) -> &mut LintStore;
fn level_stack(&mut self) -> &mut Vec<(LintId, LevelSource)>;
fn enter_attrs(&mut self, attrs: &[ast::Attribute]);
fn exit_attrs(&mut self, attrs: &[ast::Attribute]);
fn enter_attrs(&mut self, attrs: &'tcx [ast::Attribute]);
fn exit_attrs(&mut self, attrs: &'tcx [ast::Attribute]);
/// Get the level of `lint` at the current position of the lint
/// traversal.
@ -606,7 +606,7 @@ pub trait LintContext: Sized {
/// current lint context, call the provided function, then reset the
/// lints in effect to their previous state.
fn with_lint_attrs<F>(&mut self,
attrs: &[ast::Attribute],
attrs: &'tcx [ast::Attribute],
f: F)
where F: FnOnce(&mut Self),
{
@ -729,7 +729,7 @@ impl<'a, 'tcx> LateContext<'a, 'tcx> {
}
}
impl<'a, 'tcx> LintContext for LateContext<'a, 'tcx> {
impl<'a, 'tcx> LintContext<'tcx> for LateContext<'a, 'tcx> {
/// Get the overall compiler `Session` object.
fn sess(&self) -> &Session {
&self.tcx.sess
@ -747,18 +747,18 @@ impl<'a, 'tcx> LintContext for LateContext<'a, 'tcx> {
&mut self.level_stack
}
fn enter_attrs(&mut self, attrs: &[ast::Attribute]) {
fn enter_attrs(&mut self, attrs: &'tcx [ast::Attribute]) {
debug!("late context: enter_attrs({:?})", attrs);
run_lints!(self, enter_lint_attrs, late_passes, attrs);
}
fn exit_attrs(&mut self, attrs: &[ast::Attribute]) {
fn exit_attrs(&mut self, attrs: &'tcx [ast::Attribute]) {
debug!("late context: exit_attrs({:?})", attrs);
run_lints!(self, exit_lint_attrs, late_passes, attrs);
}
}
impl<'a> LintContext for EarlyContext<'a> {
impl<'a> LintContext<'a> for EarlyContext<'a> {
/// Get the overall compiler `Session` object.
fn sess(&self) -> &Session {
&self.sess
@ -776,12 +776,12 @@ impl<'a> LintContext for EarlyContext<'a> {
&mut self.level_stack
}
fn enter_attrs(&mut self, attrs: &[ast::Attribute]) {
fn enter_attrs(&mut self, attrs: &'a [ast::Attribute]) {
debug!("early context: enter_attrs({:?})", attrs);
run_lints!(self, enter_lint_attrs, early_passes, attrs);
}
fn exit_attrs(&mut self, attrs: &[ast::Attribute]) {
fn exit_attrs(&mut self, attrs: &'a [ast::Attribute]) {
debug!("early context: exit_attrs({:?})", attrs);
run_lints!(self, exit_lint_attrs, early_passes, attrs);
}
@ -949,14 +949,14 @@ impl<'a, 'tcx> hir_visit::Visitor<'tcx> for LateContext<'a, 'tcx> {
hir_visit::walk_path(self, p);
}
fn visit_attribute(&mut self, attr: &ast::Attribute) {
fn visit_attribute(&mut self, attr: &'tcx ast::Attribute) {
check_lint_name_attribute(self, attr);
run_lints!(self, check_attribute, late_passes, attr);
}
}
impl<'a> ast_visit::Visitor for EarlyContext<'a> {
fn visit_item(&mut self, it: &ast::Item) {
impl<'a> ast_visit::Visitor<'a> for EarlyContext<'a> {
fn visit_item(&mut self, it: &'a ast::Item) {
self.with_lint_attrs(&it.attrs, |cx| {
run_lints!(cx, check_item, early_passes, it);
ast_visit::walk_item(cx, it);
@ -964,7 +964,7 @@ impl<'a> ast_visit::Visitor for EarlyContext<'a> {
})
}
fn visit_foreign_item(&mut self, it: &ast::ForeignItem) {
fn visit_foreign_item(&mut self, it: &'a ast::ForeignItem) {
self.with_lint_attrs(&it.attrs, |cx| {
run_lints!(cx, check_foreign_item, early_passes, it);
ast_visit::walk_foreign_item(cx, it);
@ -972,24 +972,24 @@ impl<'a> ast_visit::Visitor for EarlyContext<'a> {
})
}
fn visit_pat(&mut self, p: &ast::Pat) {
fn visit_pat(&mut self, p: &'a ast::Pat) {
run_lints!(self, check_pat, early_passes, p);
ast_visit::walk_pat(self, p);
}
fn visit_expr(&mut self, e: &ast::Expr) {
fn visit_expr(&mut self, e: &'a ast::Expr) {
self.with_lint_attrs(&e.attrs, |cx| {
run_lints!(cx, check_expr, early_passes, e);
ast_visit::walk_expr(cx, e);
})
}
fn visit_stmt(&mut self, s: &ast::Stmt) {
fn visit_stmt(&mut self, s: &'a ast::Stmt) {
run_lints!(self, check_stmt, early_passes, s);
ast_visit::walk_stmt(self, s);
}
fn visit_fn(&mut self, fk: ast_visit::FnKind, decl: &ast::FnDecl,
fn visit_fn(&mut self, fk: ast_visit::FnKind<'a>, decl: &'a ast::FnDecl,
span: Span, id: ast::NodeId) {
run_lints!(self, check_fn, early_passes, fk, decl, span, id);
ast_visit::walk_fn(self, fk, decl, span);
@ -997,9 +997,9 @@ impl<'a> ast_visit::Visitor for EarlyContext<'a> {
}
fn visit_variant_data(&mut self,
s: &ast::VariantData,
s: &'a ast::VariantData,
ident: ast::Ident,
g: &ast::Generics,
g: &'a ast::Generics,
item_id: ast::NodeId,
_: Span) {
run_lints!(self, check_struct_def, early_passes, s, ident, g, item_id);
@ -1007,14 +1007,14 @@ impl<'a> ast_visit::Visitor for EarlyContext<'a> {
run_lints!(self, check_struct_def_post, early_passes, s, ident, g, item_id);
}
fn visit_struct_field(&mut self, s: &ast::StructField) {
fn visit_struct_field(&mut self, s: &'a ast::StructField) {
self.with_lint_attrs(&s.attrs, |cx| {
run_lints!(cx, check_struct_field, early_passes, s);
ast_visit::walk_struct_field(cx, s);
})
}
fn visit_variant(&mut self, v: &ast::Variant, g: &ast::Generics, item_id: ast::NodeId) {
fn visit_variant(&mut self, v: &'a ast::Variant, g: &'a ast::Generics, item_id: ast::NodeId) {
self.with_lint_attrs(&v.node.attrs, |cx| {
run_lints!(cx, check_variant, early_passes, v, g);
ast_visit::walk_variant(cx, v, g, item_id);
@ -1022,7 +1022,7 @@ impl<'a> ast_visit::Visitor for EarlyContext<'a> {
})
}
fn visit_ty(&mut self, t: &ast::Ty) {
fn visit_ty(&mut self, t: &'a ast::Ty) {
run_lints!(self, check_ty, early_passes, t);
ast_visit::walk_ty(self, t);
}
@ -1031,40 +1031,40 @@ impl<'a> ast_visit::Visitor for EarlyContext<'a> {
run_lints!(self, check_ident, early_passes, sp, id);
}
fn visit_mod(&mut self, m: &ast::Mod, s: Span, n: ast::NodeId) {
fn visit_mod(&mut self, m: &'a ast::Mod, s: Span, n: ast::NodeId) {
run_lints!(self, check_mod, early_passes, m, s, n);
ast_visit::walk_mod(self, m);
run_lints!(self, check_mod_post, early_passes, m, s, n);
}
fn visit_local(&mut self, l: &ast::Local) {
fn visit_local(&mut self, l: &'a ast::Local) {
self.with_lint_attrs(&l.attrs, |cx| {
run_lints!(cx, check_local, early_passes, l);
ast_visit::walk_local(cx, l);
})
}
fn visit_block(&mut self, b: &ast::Block) {
fn visit_block(&mut self, b: &'a ast::Block) {
run_lints!(self, check_block, early_passes, b);
ast_visit::walk_block(self, b);
run_lints!(self, check_block_post, early_passes, b);
}
fn visit_arm(&mut self, a: &ast::Arm) {
fn visit_arm(&mut self, a: &'a ast::Arm) {
run_lints!(self, check_arm, early_passes, a);
ast_visit::walk_arm(self, a);
}
fn visit_expr_post(&mut self, e: &ast::Expr) {
fn visit_expr_post(&mut self, e: &'a ast::Expr) {
run_lints!(self, check_expr_post, early_passes, e);
}
fn visit_generics(&mut self, g: &ast::Generics) {
fn visit_generics(&mut self, g: &'a ast::Generics) {
run_lints!(self, check_generics, early_passes, g);
ast_visit::walk_generics(self, g);
}
fn visit_trait_item(&mut self, trait_item: &ast::TraitItem) {
fn visit_trait_item(&mut self, trait_item: &'a ast::TraitItem) {
self.with_lint_attrs(&trait_item.attrs, |cx| {
run_lints!(cx, check_trait_item, early_passes, trait_item);
ast_visit::walk_trait_item(cx, trait_item);
@ -1072,7 +1072,7 @@ impl<'a> ast_visit::Visitor for EarlyContext<'a> {
});
}
fn visit_impl_item(&mut self, impl_item: &ast::ImplItem) {
fn visit_impl_item(&mut self, impl_item: &'a ast::ImplItem) {
self.with_lint_attrs(&impl_item.attrs, |cx| {
run_lints!(cx, check_impl_item, early_passes, impl_item);
ast_visit::walk_impl_item(cx, impl_item);
@ -1080,25 +1080,25 @@ impl<'a> ast_visit::Visitor for EarlyContext<'a> {
});
}
fn visit_lifetime(&mut self, lt: &ast::Lifetime) {
fn visit_lifetime(&mut self, lt: &'a ast::Lifetime) {
run_lints!(self, check_lifetime, early_passes, lt);
}
fn visit_lifetime_def(&mut self, lt: &ast::LifetimeDef) {
fn visit_lifetime_def(&mut self, lt: &'a ast::LifetimeDef) {
run_lints!(self, check_lifetime_def, early_passes, lt);
}
fn visit_path(&mut self, p: &ast::Path, id: ast::NodeId) {
fn visit_path(&mut self, p: &'a ast::Path, id: ast::NodeId) {
run_lints!(self, check_path, early_passes, p, id);
ast_visit::walk_path(self, p);
}
fn visit_path_list_item(&mut self, prefix: &ast::Path, item: &ast::PathListItem) {
fn visit_path_list_item(&mut self, prefix: &'a ast::Path, item: &'a ast::PathListItem) {
run_lints!(self, check_path_list_item, early_passes, item);
ast_visit::walk_path_list_item(self, prefix, item);
}
fn visit_attribute(&mut self, attr: &ast::Attribute) {
fn visit_attribute(&mut self, attr: &'a ast::Attribute) {
run_lints!(self, check_attribute, early_passes, attr);
}
}

116
src/librustc/lint/mod.rs
View File

@ -129,53 +129,85 @@ pub trait LintPass {
//
// FIXME: eliminate the duplication with `Visitor`. But this also
// contains a few lint-specific methods with no equivalent in `Visitor`.
pub trait LateLintPass: LintPass {
pub trait LateLintPass<'a, 'tcx>: LintPass {
fn check_name(&mut self, _: &LateContext, _: Span, _: ast::Name) { }
fn check_crate(&mut self, _: &LateContext, _: &hir::Crate) { }
fn check_crate_post(&mut self, _: &LateContext, _: &hir::Crate) { }
fn check_mod(&mut self, _: &LateContext, _: &hir::Mod, _: Span, _: ast::NodeId) { }
fn check_mod_post(&mut self, _: &LateContext, _: &hir::Mod, _: Span, _: ast::NodeId) { }
fn check_foreign_item(&mut self, _: &LateContext, _: &hir::ForeignItem) { }
fn check_foreign_item_post(&mut self, _: &LateContext, _: &hir::ForeignItem) { }
fn check_item(&mut self, _: &LateContext, _: &hir::Item) { }
fn check_item_post(&mut self, _: &LateContext, _: &hir::Item) { }
fn check_local(&mut self, _: &LateContext, _: &hir::Local) { }
fn check_block(&mut self, _: &LateContext, _: &hir::Block) { }
fn check_block_post(&mut self, _: &LateContext, _: &hir::Block) { }
fn check_stmt(&mut self, _: &LateContext, _: &hir::Stmt) { }
fn check_arm(&mut self, _: &LateContext, _: &hir::Arm) { }
fn check_pat(&mut self, _: &LateContext, _: &hir::Pat) { }
fn check_decl(&mut self, _: &LateContext, _: &hir::Decl) { }
fn check_expr(&mut self, _: &LateContext, _: &hir::Expr) { }
fn check_expr_post(&mut self, _: &LateContext, _: &hir::Expr) { }
fn check_ty(&mut self, _: &LateContext, _: &hir::Ty) { }
fn check_generics(&mut self, _: &LateContext, _: &hir::Generics) { }
fn check_fn(&mut self, _: &LateContext,
_: FnKind, _: &hir::FnDecl, _: &hir::Expr, _: Span, _: ast::NodeId) { }
fn check_fn_post(&mut self, _: &LateContext,
_: FnKind, _: &hir::FnDecl, _: &hir::Expr, _: Span, _: ast::NodeId) { }
fn check_trait_item(&mut self, _: &LateContext, _: &hir::TraitItem) { }
fn check_trait_item_post(&mut self, _: &LateContext, _: &hir::TraitItem) { }
fn check_impl_item(&mut self, _: &LateContext, _: &hir::ImplItem) { }
fn check_impl_item_post(&mut self, _: &LateContext, _: &hir::ImplItem) { }
fn check_struct_def(&mut self, _: &LateContext,
_: &hir::VariantData, _: ast::Name, _: &hir::Generics, _: ast::NodeId) { }
fn check_struct_def_post(&mut self, _: &LateContext,
_: &hir::VariantData, _: ast::Name, _: &hir::Generics, _: ast::NodeId) { }
fn check_struct_field(&mut self, _: &LateContext, _: &hir::StructField) { }
fn check_variant(&mut self, _: &LateContext, _: &hir::Variant, _: &hir::Generics) { }
fn check_variant_post(&mut self, _: &LateContext, _: &hir::Variant, _: &hir::Generics) { }
fn check_lifetime(&mut self, _: &LateContext, _: &hir::Lifetime) { }
fn check_lifetime_def(&mut self, _: &LateContext, _: &hir::LifetimeDef) { }
fn check_path(&mut self, _: &LateContext, _: &hir::Path, _: ast::NodeId) { }
fn check_attribute(&mut self, _: &LateContext, _: &ast::Attribute) { }
fn check_crate(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx hir::Crate) { }
fn check_crate_post(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx hir::Crate) { }
fn check_mod(&mut self,
_: &LateContext<'a, 'tcx>,
_: &'tcx hir::Mod,
_: Span,
_: ast::NodeId) { }
fn check_mod_post(&mut self,
_: &LateContext<'a, 'tcx>,
_: &'tcx hir::Mod,
_: Span,
_: ast::NodeId) { }
fn check_foreign_item(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx hir::ForeignItem) { }
fn check_foreign_item_post(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx hir::ForeignItem) { }
fn check_item(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx hir::Item) { }
fn check_item_post(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx hir::Item) { }
fn check_local(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx hir::Local) { }
fn check_block(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx hir::Block) { }
fn check_block_post(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx hir::Block) { }
fn check_stmt(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx hir::Stmt) { }
fn check_arm(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx hir::Arm) { }
fn check_pat(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx hir::Pat) { }
fn check_decl(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx hir::Decl) { }
fn check_expr(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx hir::Expr) { }
fn check_expr_post(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx hir::Expr) { }
fn check_ty(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx hir::Ty) { }
fn check_generics(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx hir::Generics) { }
fn check_fn(&mut self,
_: &LateContext<'a, 'tcx>,
_: FnKind<'tcx>,
_: &'tcx hir::FnDecl,
_: &'tcx hir::Expr,
_: Span,
_: ast::NodeId) { }
fn check_fn_post(&mut self,
_: &LateContext<'a, 'tcx>,
_: FnKind<'tcx>,
_: &'tcx hir::FnDecl,
_: &'tcx hir::Expr,
_: Span,
_: ast::NodeId) { }
fn check_trait_item(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx hir::TraitItem) { }
fn check_trait_item_post(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx hir::TraitItem) { }
fn check_impl_item(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx hir::ImplItem) { }
fn check_impl_item_post(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx hir::ImplItem) { }
fn check_struct_def(&mut self,
_: &LateContext<'a, 'tcx>,
_: &'tcx hir::VariantData,
_: ast::Name,
_: &'tcx hir::Generics,
_: ast::NodeId) { }
fn check_struct_def_post(&mut self,
_: &LateContext<'a, 'tcx>,
_: &'tcx hir::VariantData,
_: ast::Name,
_: &'tcx hir::Generics,
_: ast::NodeId) { }
fn check_struct_field(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx hir::StructField) { }
fn check_variant(&mut self,
_: &LateContext<'a, 'tcx>,
_: &'tcx hir::Variant,
_: &'tcx hir::Generics) { }
fn check_variant_post(&mut self,
_: &LateContext<'a, 'tcx>,
_: &'tcx hir::Variant,
_: &'tcx hir::Generics) { }
fn check_lifetime(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx hir::Lifetime) { }
fn check_lifetime_def(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx hir::LifetimeDef) { }
fn check_path(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx hir::Path, _: ast::NodeId) { }
fn check_attribute(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx ast::Attribute) { }
/// Called when entering a syntax node that can have lint attributes such
/// as `#[allow(...)]`. Called with *all* the attributes of that node.
fn enter_lint_attrs(&mut self, _: &LateContext, _: &[ast::Attribute]) { }
fn enter_lint_attrs(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx [ast::Attribute]) { }
/// Counterpart to `enter_lint_attrs`.
fn exit_lint_attrs(&mut self, _: &LateContext, _: &[ast::Attribute]) { }
fn exit_lint_attrs(&mut self, _: &LateContext<'a, 'tcx>, _: &'tcx [ast::Attribute]) { }
}
pub trait EarlyLintPass: LintPass {
@ -229,7 +261,7 @@ pub trait EarlyLintPass: LintPass {
/// A lint pass boxed up as a trait object.
pub type EarlyLintPassObject = Box<EarlyLintPass + 'static>;
pub type LateLintPassObject = Box<LateLintPass + 'static>;
pub type LateLintPassObject = Box<for<'a, 'tcx> LateLintPass<'a, 'tcx> + 'static>;
/// Identifies a lint known to the compiler.
#[derive(Clone, Copy, Debug)]

6
src/librustc_lint/bad_style.rs
View File

@ -99,7 +99,7 @@ impl LintPass for NonCamelCaseTypes {
}
}
impl LateLintPass for NonCamelCaseTypes {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for NonCamelCaseTypes {
fn check_item(&mut self, cx: &LateContext, it: &hir::Item) {
let extern_repr_count = it.attrs
.iter()
@ -226,7 +226,7 @@ impl LintPass for NonSnakeCase {
}
}
impl LateLintPass for NonSnakeCase {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for NonSnakeCase {
fn check_crate(&mut self, cx: &LateContext, cr: &hir::Crate) {
let attr_crate_name = cr.attrs
.iter()
@ -348,7 +348,7 @@ impl LintPass for NonUpperCaseGlobals {
}
}
impl LateLintPass for NonUpperCaseGlobals {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for NonUpperCaseGlobals {
fn check_item(&mut self, cx: &LateContext, it: &hir::Item) {
match it.node {
hir::ItemStatic(..) => {

32
src/librustc_lint/builtin.rs
View File

@ -69,7 +69,7 @@ impl LintPass for WhileTrue {
}
}
impl LateLintPass for WhileTrue {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for WhileTrue {
fn check_expr(&mut self, cx: &LateContext, e: &hir::Expr) {
if let hir::ExprWhile(ref cond, ..) = e.node {
if let hir::ExprLit(ref lit) = cond.node {
@ -93,7 +93,7 @@ declare_lint! {
pub struct BoxPointers;
impl BoxPointers {
fn check_heap_type<'a, 'tcx>(&self, cx: &LateContext<'a, 'tcx>, span: Span, ty: Ty<'tcx>) {
fn check_heap_type<'a, 'tcx>(&self, cx: &LateContext, span: Span, ty: Ty) {
for leaf_ty in ty.walk() {
if let ty::TyBox(_) = leaf_ty.sty {
let m = format!("type uses owned (Box type) pointers: {}", ty);
@ -109,7 +109,7 @@ impl LintPass for BoxPointers {
}
}
impl LateLintPass for BoxPointers {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for BoxPointers {
fn check_item(&mut self, cx: &LateContext, it: &hir::Item) {
match it.node {
hir::ItemFn(..) |
@ -158,7 +158,7 @@ impl LintPass for NonShorthandFieldPatterns {
}
}
impl LateLintPass for NonShorthandFieldPatterns {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for NonShorthandFieldPatterns {
fn check_pat(&mut self, cx: &LateContext, pat: &hir::Pat) {
if let PatKind::Struct(_, ref field_pats, _) = pat.node {
for fieldpat in field_pats {
@ -194,7 +194,7 @@ impl LintPass for UnsafeCode {
}
}
impl LateLintPass for UnsafeCode {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for UnsafeCode {
fn check_expr(&mut self, cx: &LateContext, e: &hir::Expr) {
if let hir::ExprBlock(ref blk) = e.node {
// Don't warn about generated blocks, that'll just pollute the output.
@ -220,7 +220,7 @@ impl LateLintPass for UnsafeCode {
fn check_fn(&mut self,
cx: &LateContext,
fk: FnKind,
fk: FnKind<'tcx>,
_: &hir::FnDecl,
_: &hir::Expr,
span: Span,
@ -327,7 +327,7 @@ impl LintPass for MissingDoc {
}
}
impl LateLintPass for MissingDoc {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for MissingDoc {
fn enter_lint_attrs(&mut self, _: &LateContext, attrs: &[ast::Attribute]) {
let doc_hidden = self.doc_hidden() ||
attrs.iter().any(|attr| {
@ -340,7 +340,7 @@ impl LateLintPass for MissingDoc {
self.doc_hidden_stack.push(doc_hidden);
}
fn exit_lint_attrs(&mut self, _: &LateContext, _: &[ast::Attribute]) {
fn exit_lint_attrs(&mut self, _: &LateContext, _attrs: &[ast::Attribute]) {
self.doc_hidden_stack.pop().expect("empty doc_hidden_stack");
}
@ -494,7 +494,7 @@ impl LintPass for MissingCopyImplementations {
}
}
impl LateLintPass for MissingCopyImplementations {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for MissingCopyImplementations {
fn check_item(&mut self, cx: &LateContext, item: &hir::Item) {
if !cx.access_levels.is_reachable(item.id) {
return;
@ -563,7 +563,7 @@ impl LintPass for MissingDebugImplementations {
}
}
impl LateLintPass for MissingDebugImplementations {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for MissingDebugImplementations {
fn check_item(&mut self, cx: &LateContext, item: &hir::Item) {
if !cx.access_levels.is_reachable(item.id) {
return;
@ -669,7 +669,7 @@ impl LintPass for UnconditionalRecursion {
}
}
impl LateLintPass for UnconditionalRecursion {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for UnconditionalRecursion {
fn check_fn(&mut self,
cx: &LateContext,
fn_kind: FnKind,
@ -932,7 +932,7 @@ impl LintPass for PluginAsLibrary {
}
}
impl LateLintPass for PluginAsLibrary {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for PluginAsLibrary {
fn check_item(&mut self, cx: &LateContext, it: &hir::Item) {
if cx.sess().plugin_registrar_fn.get().is_some() {
// We're compiling a plugin; it's fine to link other plugins.
@ -998,7 +998,7 @@ impl LintPass for InvalidNoMangleItems {
}
}
impl LateLintPass for InvalidNoMangleItems {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for InvalidNoMangleItems {
fn check_item(&mut self, cx: &LateContext, it: &hir::Item) {
match it.node {
hir::ItemFn(.., ref generics, _) => {
@ -1052,7 +1052,7 @@ impl LintPass for MutableTransmutes {
}
}
impl LateLintPass for MutableTransmutes {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for MutableTransmutes {
fn check_expr(&mut self, cx: &LateContext, expr: &hir::Expr) {
use syntax::abi::Abi::RustIntrinsic;
@ -1120,7 +1120,7 @@ impl LintPass for UnstableFeatures {
}
}
impl LateLintPass for UnstableFeatures {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for UnstableFeatures {
fn check_attribute(&mut self, ctx: &LateContext, attr: &ast::Attribute) {
if attr.meta().check_name("feature") {
if let Some(items) = attr.meta().meta_item_list() {
@ -1147,7 +1147,7 @@ impl LintPass for UnionsWithDropFields {
}
}
impl LateLintPass for UnionsWithDropFields {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for UnionsWithDropFields {
fn check_item(&mut self, ctx: &LateContext, item: &hir::Item) {
if let hir::ItemUnion(ref vdata, _) = item.node {
let param_env = &ty::ParameterEnvironment::for_item(ctx.tcx, item.id);

6
src/librustc_lint/types.rs
View File

@ -103,7 +103,7 @@ impl LintPass for TypeLimits {
}
}
impl LateLintPass for TypeLimits {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for TypeLimits {
fn check_expr(&mut self, cx: &LateContext, e: &hir::Expr) {
match e.node {
hir::ExprUnary(hir::UnNeg, ref expr) => {
@ -706,7 +706,7 @@ impl LintPass for ImproperCTypes {
}
}
impl LateLintPass for ImproperCTypes {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for ImproperCTypes {
fn check_item(&mut self, cx: &LateContext, it: &hir::Item) {
let mut vis = ImproperCTypesVisitor { cx: cx };
if let hir::ItemForeignMod(ref nmod) = it.node {
@ -734,7 +734,7 @@ impl LintPass for VariantSizeDifferences {
}
}
impl LateLintPass for VariantSizeDifferences {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for VariantSizeDifferences {
fn check_item(&mut self, cx: &LateContext, it: &hir::Item) {
if let hir::ItemEnum(ref enum_definition, ref gens) = it.node {
if gens.ty_params.is_empty() {

12
src/librustc_lint/unused.rs
View File

@ -77,7 +77,7 @@ impl LintPass for UnusedMut {
}
}
impl LateLintPass for UnusedMut {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for UnusedMut {
fn check_expr(&mut self, cx: &LateContext, e: &hir::Expr) {
if let hir::ExprMatch(_, ref arms, _) = e.node {
for a in arms {
@ -128,7 +128,7 @@ impl LintPass for UnusedResults {
}
}
impl LateLintPass for UnusedResults {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for UnusedResults {
fn check_stmt(&mut self, cx: &LateContext, s: &hir::Stmt) {
let expr = match s.node {
hir::StmtSemi(ref expr, _) => &**expr,
@ -187,7 +187,7 @@ impl LintPass for UnusedUnsafe {
}
}
impl LateLintPass for UnusedUnsafe {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for UnusedUnsafe {
fn check_expr(&mut self, cx: &LateContext, e: &hir::Expr) {
if let hir::ExprBlock(ref blk) = e.node {
// Don't warn about generated blocks, that'll just pollute the output.
@ -214,7 +214,7 @@ impl LintPass for PathStatements {
}
}
impl LateLintPass for PathStatements {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for PathStatements {
fn check_stmt(&mut self, cx: &LateContext, s: &hir::Stmt) {
if let hir::StmtSemi(ref expr, _) = s.node {
if let hir::ExprPath(_) = expr.node {
@ -239,7 +239,7 @@ impl LintPass for UnusedAttributes {
}
}
impl LateLintPass for UnusedAttributes {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for UnusedAttributes {
fn check_attribute(&mut self, cx: &LateContext, attr: &ast::Attribute) {
debug!("checking attribute: {:?}", attr);
@ -433,7 +433,7 @@ impl LintPass for UnusedAllocation {
}
}
impl LateLintPass for UnusedAllocation {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for UnusedAllocation {
fn check_expr(&mut self, cx: &LateContext, e: &hir::Expr) {
match e.node {
hir::ExprBox(_) => {}

16
src/librustc_passes/ast_validation.rs
View File

@ -101,8 +101,8 @@ impl<'a> AstValidator<'a> {
}
}
impl<'a> Visitor for AstValidator<'a> {
fn visit_lifetime(&mut self, lt: &Lifetime) {
impl<'a> Visitor<'a> for AstValidator<'a> {
fn visit_lifetime(&mut self, lt: &'a Lifetime) {
if lt.name == "'_" {
self.session.add_lint(lint::builtin::LIFETIME_UNDERSCORE,
lt.id,
@ -113,7 +113,7 @@ impl<'a> Visitor for AstValidator<'a> {
visit::walk_lifetime(self, lt)
}
fn visit_expr(&mut self, expr: &Expr) {
fn visit_expr(&mut self, expr: &'a Expr) {
match expr.node {
ExprKind::While(.., Some(ident)) |
ExprKind::Loop(_, Some(ident)) |
@ -129,7 +129,7 @@ impl<'a> Visitor for AstValidator<'a> {
visit::walk_expr(self, expr)
}
fn visit_ty(&mut self, ty: &Ty) {
fn visit_ty(&mut self, ty: &'a Ty) {
match ty.node {
TyKind::BareFn(ref bfty) => {
self.check_decl_no_pat(&bfty.decl, |span, _| {
@ -153,7 +153,7 @@ impl<'a> Visitor for AstValidator<'a> {
visit::walk_ty(self, ty)
}
fn visit_path(&mut self, path: &Path, id: NodeId) {
fn visit_path(&mut self, path: &'a Path, id: NodeId) {
if path.global && path.segments.len() > 0 {
let ident = path.segments[0].identifier;
if token::Ident(ident).is_path_segment_keyword() {
@ -167,7 +167,7 @@ impl<'a> Visitor for AstValidator<'a> {
visit::walk_path(self, path)
}
fn visit_item(&mut self, item: &Item) {
fn visit_item(&mut self, item: &'a Item) {
match item.node {
ItemKind::Use(ref view_path) => {
let path = view_path.node.path();
@ -249,7 +249,7 @@ impl<'a> Visitor for AstValidator<'a> {
visit::walk_item(self, item)
}
fn visit_foreign_item(&mut self, fi: &ForeignItem) {
fn visit_foreign_item(&mut self, fi: &'a ForeignItem) {
match fi.node {
ForeignItemKind::Fn(ref decl, _) => {
self.check_decl_no_pat(decl, |span, is_recent| {
@ -272,7 +272,7 @@ impl<'a> Visitor for AstValidator<'a> {
visit::walk_foreign_item(self, fi)
}
fn visit_vis(&mut self, vis: &Visibility) {
fn visit_vis(&mut self, vis: &'a Visibility) {
match *vis {
Visibility::Restricted { ref path, .. } => {
if !path.segments.iter().all(|segment| segment.parameters.is_empty()) {

58
src/librustc_passes/hir_stats.rs
View File

@ -48,7 +48,7 @@ pub fn print_hir_stats(krate: &hir::Crate) {
collector.print("HIR STATS");
}
pub fn print_ast_stats(krate: &ast::Crate, title: &str) {
pub fn print_ast_stats<'v>(krate: &'v ast::Crate, title: &str) {
let mut collector = StatCollector {
krate: None,
data: FxHashMap(),
@ -245,133 +245,133 @@ impl<'v> hir_visit::Visitor<'v> for StatCollector<'v> {
}
}
impl<'v> ast_visit::Visitor for StatCollector<'v> {
impl<'v> ast_visit::Visitor<'v> for StatCollector<'v> {
fn visit_mod(&mut self, m: &ast::Mod, _s: Span, _n: NodeId) {
fn visit_mod(&mut self, m: &'v ast::Mod, _s: Span, _n: NodeId) {
self.record("Mod", Id::None, m);
ast_visit::walk_mod(self, m)
}
fn visit_foreign_item(&mut self, i: &ast::ForeignItem) {
fn visit_foreign_item(&mut self, i: &'v ast::ForeignItem) {
self.record("ForeignItem", Id::None, i);
ast_visit::walk_foreign_item(self, i)
}
fn visit_item(&mut self, i: &ast::Item) {
fn visit_item(&mut self, i: &'v ast::Item) {
self.record("Item", Id::None, i);
ast_visit::walk_item(self, i)
}
fn visit_local(&mut self, l: &ast::Local) {
fn visit_local(&mut self, l: &'v ast::Local) {
self.record("Local", Id::None, l);
ast_visit::walk_local(self, l)
}
fn visit_block(&mut self, b: &ast::Block) {
fn visit_block(&mut self, b: &'v ast::Block) {
self.record("Block", Id::None, b);
ast_visit::walk_block(self, b)
}
fn visit_stmt(&mut self, s: &ast::Stmt) {
fn visit_stmt(&mut self, s: &'v ast::Stmt) {
self.record("Stmt", Id::None, s);
ast_visit::walk_stmt(self, s)
}
fn visit_arm(&mut self, a: &ast::Arm) {
fn visit_arm(&mut self, a: &'v ast::Arm) {
self.record("Arm", Id::None, a);
ast_visit::walk_arm(self, a)
}
fn visit_pat(&mut self, p: &ast::Pat) {
fn visit_pat(&mut self, p: &'v ast::Pat) {
self.record("Pat", Id::None, p);
ast_visit::walk_pat(self, p)
}
fn visit_expr(&mut self, ex: &ast::Expr) {
fn visit_expr(&mut self, ex: &'v ast::Expr) {
self.record("Expr", Id::None, ex);
ast_visit::walk_expr(self, ex)
}
fn visit_ty(&mut self, t: &ast::Ty) {
fn visit_ty(&mut self, t: &'v ast::Ty) {
self.record("Ty", Id::None, t);
ast_visit::walk_ty(self, t)
}
fn visit_fn(&mut self,
fk: ast_visit::FnKind,
fd: &ast::FnDecl,
fk: ast_visit::FnKind<'v>,
fd: &'v ast::FnDecl,
s: Span,
_: NodeId) {
self.record("FnDecl", Id::None, fd);
ast_visit::walk_fn(self, fk, fd, s)
}
fn visit_trait_item(&mut self, ti: &ast::TraitItem) {
fn visit_trait_item(&mut self, ti: &'v ast::TraitItem) {
self.record("TraitItem", Id::None, ti);
ast_visit::walk_trait_item(self, ti)
}
fn visit_impl_item(&mut self, ii: &ast::ImplItem) {
fn visit_impl_item(&mut self, ii: &'v ast::ImplItem) {
self.record("ImplItem", Id::None, ii);
ast_visit::walk_impl_item(self, ii)
}
fn visit_ty_param_bound(&mut self, bounds: &ast::TyParamBound) {
fn visit_ty_param_bound(&mut self, bounds: &'v ast::TyParamBound) {
self.record("TyParamBound", Id::None, bounds);
ast_visit::walk_ty_param_bound(self, bounds)
}
fn visit_struct_field(&mut self, s: &ast::StructField) {
fn visit_struct_field(&mut self, s: &'v ast::StructField) {
self.record("StructField", Id::None, s);
ast_visit::walk_struct_field(self, s)
}
fn visit_variant(&mut self,
v: &ast::Variant,
g: &ast::Generics,
v: &'v ast::Variant,
g: &'v ast::Generics,
item_id: NodeId) {
self.record("Variant", Id::None, v);
ast_visit::walk_variant(self, v, g, item_id)
}
fn visit_lifetime(&mut self, lifetime: &ast::Lifetime) {
fn visit_lifetime(&mut self, lifetime: &'v ast::Lifetime) {
self.record("Lifetime", Id::None, lifetime);
ast_visit::walk_lifetime(self, lifetime)
}
fn visit_lifetime_def(&mut self, lifetime: &ast::LifetimeDef) {
fn visit_lifetime_def(&mut self, lifetime: &'v ast::LifetimeDef) {
self.record("LifetimeDef", Id::None, lifetime);
ast_visit::walk_lifetime_def(self, lifetime)
}
fn visit_mac(&mut self, mac: &ast::Mac) {
fn visit_mac(&mut self, mac: &'v ast::Mac) {
self.record("Mac", Id::None, mac);
}
fn visit_path_list_item(&mut self,
prefix: &ast::Path,
item: &ast::PathListItem) {
prefix: &'v ast::Path,
item: &'v ast::PathListItem) {
self.record("PathListItem", Id::None, item);
ast_visit::walk_path_list_item(self, prefix, item)
}
fn visit_path_segment(&mut self,
path_span: Span,
path_segment: &ast::PathSegment) {
path_segment: &'v ast::PathSegment) {
self.record("PathSegment", Id::None, path_segment);
ast_visit::walk_path_segment(self, path_span, path_segment)
}
fn visit_assoc_type_binding(&mut self, type_binding: &ast::TypeBinding) {
fn visit_assoc_type_binding(&mut self, type_binding: &'v ast::TypeBinding) {
self.record("TypeBinding", Id::None, type_binding);
ast_visit::walk_assoc_type_binding(self, type_binding)
}
fn visit_attribute(&mut self, attr: &ast::Attribute) {
fn visit_attribute(&mut self, attr: &'v ast::Attribute) {
self.record("Attribute", Id::None, attr);
}
fn visit_macro_def(&mut self, macro_def: &ast::MacroDef) {
fn visit_macro_def(&mut self, macro_def: &'v ast::MacroDef) {
self.record("MacroDef", Id::None, macro_def);
ast_visit::walk_macro_def(self, macro_def)
}

4
src/librustc_passes/no_asm.rs
View File

@ -31,8 +31,8 @@ struct CheckNoAsm<'a> {
sess: &'a Session,
}
impl<'a> Visitor for CheckNoAsm<'a> {
fn visit_expr(&mut self, e: &ast::Expr) {
impl<'a> Visitor<'a> for CheckNoAsm<'a> {
fn visit_expr(&mut self, e: &'a ast::Expr) {
match e.node {
ast::ExprKind::InlineAsm(_) => {
span_err!(self.sess,

14
src/librustc_resolve/build_reduced_graph.rs
View File

@ -678,7 +678,7 @@ impl<'a, 'b> BuildReducedGraphVisitor<'a, 'b> {
macro_rules! method {
($visit:ident: $ty:ty, $invoc:path, $walk:ident) => {
fn $visit(&mut self, node: &$ty) {
fn $visit(&mut self, node: &'a $ty) {
if let $invoc(..) = node.node {
self.visit_invoc(node.id);
} else {
@ -688,13 +688,13 @@ macro_rules! method {
}
}
impl<'a, 'b> Visitor for BuildReducedGraphVisitor<'a, 'b> {
impl<'a, 'b> Visitor<'a> for BuildReducedGraphVisitor<'a, 'b> {
method!(visit_impl_item: ast::ImplItem, ast::ImplItemKind::Macro, walk_impl_item);
method!(visit_expr: ast::Expr, ast::ExprKind::Mac, walk_expr);
method!(visit_pat: ast::Pat, ast::PatKind::Mac, walk_pat);
method!(visit_ty: ast::Ty, ast::TyKind::Mac, walk_ty);
fn visit_item(&mut self, item: &Item) {
fn visit_item(&mut self, item: &'a Item) {
let macro_use = match item.node {
ItemKind::Mac(..) if item.id == ast::DUMMY_NODE_ID => return, // Scope placeholder
ItemKind::Mac(..) => {
@ -713,7 +713,7 @@ impl<'a, 'b> Visitor for BuildReducedGraphVisitor<'a, 'b> {
}
}
fn visit_stmt(&mut self, stmt: &ast::Stmt) {
fn visit_stmt(&mut self, stmt: &'a ast::Stmt) {
if let ast::StmtKind::Mac(..) = stmt.node {
self.legacy_scope = LegacyScope::Expansion(self.visit_invoc(stmt.id));
} else {
@ -721,12 +721,12 @@ impl<'a, 'b> Visitor for BuildReducedGraphVisitor<'a, 'b> {
}
}
fn visit_foreign_item(&mut self, foreign_item: &ForeignItem) {
fn visit_foreign_item(&mut self, foreign_item: &'a ForeignItem) {
self.resolver.build_reduced_graph_for_foreign_item(foreign_item, self.expansion);
visit::walk_foreign_item(self, foreign_item);
}
fn visit_block(&mut self, block: &Block) {
fn visit_block(&mut self, block: &'a Block) {
let (parent, legacy_scope) = (self.resolver.current_module, self.legacy_scope);
self.resolver.build_reduced_graph_for_block(block);
visit::walk_block(self, block);
@ -734,7 +734,7 @@ impl<'a, 'b> Visitor for BuildReducedGraphVisitor<'a, 'b> {
self.legacy_scope = legacy_scope;
}
fn visit_trait_item(&mut self, item: &TraitItem) {
fn visit_trait_item(&mut self, item: &'a TraitItem) {
let parent = self.resolver.current_module;
let def_id = parent.def_id().unwrap();

4
src/librustc_resolve/check_unused.rs
View File

@ -74,8 +74,8 @@ impl<'a, 'b> UnusedImportCheckVisitor<'a, 'b> {
}
}
impl<'a, 'b> Visitor for UnusedImportCheckVisitor<'a, 'b> {
fn visit_item(&mut self, item: &ast::Item) {
impl<'a, 'b> Visitor<'a> for UnusedImportCheckVisitor<'a, 'b> {
fn visit_item(&mut self, item: &'a ast::Item) {
visit::walk_item(self, item);
// Ignore is_public import statements because there's no way to be sure
// whether they're used or not. Also ignore imports with a dummy span

28
src/librustc_resolve/lib.rs
View File

@ -557,26 +557,28 @@ impl<T> ::std::ops::IndexMut<Namespace> for PerNS<T> {
}
}
impl<'a> Visitor for Resolver<'a> {
fn visit_item(&mut self, item: &Item) {
impl<'a, 'tcx> Visitor<'tcx> for Resolver<'a> {
fn visit_item(&mut self, item: &'tcx Item) {
self.resolve_item(item);
}
fn visit_arm(&mut self, arm: &Arm) {
fn visit_arm(&mut self, arm: &'tcx Arm) {
self.resolve_arm(arm);
}
fn visit_block(&mut self, block: &Block) {
fn visit_block(&mut self, block: &'tcx Block) {
self.resolve_block(block);
}
fn visit_expr(&mut self, expr: &Expr) {
fn visit_expr(&mut self, expr: &'tcx Expr) {
self.resolve_expr(expr, None);
}
fn visit_local(&mut self, local: &Local) {
fn visit_local(&mut self, local: &'tcx Local) {
self.resolve_local(local);
}
fn visit_ty(&mut self, ty: &Ty) {
fn visit_ty(&mut self, ty: &'tcx Ty) {
self.resolve_type(ty);
}
fn visit_poly_trait_ref(&mut self, tref: &ast::PolyTraitRef, m: &ast::TraitBoundModifier) {
fn visit_poly_trait_ref(&mut self,
tref: &'tcx ast::PolyTraitRef,
m: &'tcx ast::TraitBoundModifier) {
let ast::Path { ref segments, span, global } = tref.trait_ref.path;
let path: Vec<_> = segments.iter().map(|seg| seg.identifier).collect();
let def = self.resolve_trait_reference(&path, global, None, span);
@ -584,8 +586,8 @@ impl<'a> Visitor for Resolver<'a> {
visit::walk_poly_trait_ref(self, tref, m);
}
fn visit_variant(&mut self,
variant: &ast::Variant,
generics: &Generics,
variant: &'tcx ast::Variant,
generics: &'tcx Generics,
item_id: ast::NodeId) {
if let Some(ref dis_expr) = variant.node.disr_expr {
// resolve the discriminator expr as a constant
@ -601,7 +603,7 @@ impl<'a> Visitor for Resolver<'a> {
item_id,
variant.span);
}
fn visit_foreign_item(&mut self, foreign_item: &ForeignItem) {
fn visit_foreign_item(&mut self, foreign_item: &'tcx ForeignItem) {
let type_parameters = match foreign_item.node {
ForeignItemKind::Fn(_, ref generics) => {
HasTypeParameters(generics, ItemRibKind)
@ -613,8 +615,8 @@ impl<'a> Visitor for Resolver<'a> {
});
}
fn visit_fn(&mut self,
function_kind: FnKind,
declaration: &FnDecl,
function_kind: FnKind<'tcx>,
declaration: &'tcx FnDecl,
_: Span,
node_id: NodeId) {
let rib_kind = match function_kind {

101
src/librustc_save_analysis/dump_visitor.rs
View File

@ -345,7 +345,7 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
}
}
fn process_formals(&mut self, formals: &Vec<ast::Arg>, qualname: &str) {
fn process_formals(&mut self, formals: &'l [ast::Arg], qualname: &str) {
for arg in formals {
self.visit_pat(&arg.pat);
let mut collector = PathCollector::new();
@ -379,12 +379,12 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
}
fn process_method(&mut self,
sig: &ast::MethodSig,
body: Option<&ast::Block>,
sig: &'l ast::MethodSig,
body: Option<&'l ast::Block>,
id: ast::NodeId,
name: ast::Name,
vis: Visibility,
attrs: &[Attribute],
attrs: &'l [Attribute],
span: Span) {
debug!("process_method: {}:{}", id, name);
@ -465,7 +465,7 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
}
}
fn process_trait_ref(&mut self, trait_ref: &ast::TraitRef) {
fn process_trait_ref(&mut self, trait_ref: &'l ast::TraitRef) {
let trait_ref_data = self.save_ctxt.get_trait_ref_data(trait_ref, self.cur_scope);
if let Some(trait_ref_data) = trait_ref_data {
if !self.span.filter_generated(Some(trait_ref_data.span), trait_ref.path.span) {
@ -488,7 +488,7 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
// Dump generic params bindings, then visit_generics
fn process_generic_params(&mut self,
generics: &ast::Generics,
generics: &'l ast::Generics,
full_span: Span,
prefix: &str,
id: NodeId) {
@ -522,10 +522,10 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
}
fn process_fn(&mut self,
item: &ast::Item,
decl: &ast::FnDecl,
ty_params: &ast::Generics,
body: &ast::Block) {
item: &'l ast::Item,
decl: &'l ast::FnDecl,
ty_params: &'l ast::Generics,
body: &'l ast::Block) {
if let Some(fn_data) = self.save_ctxt.get_item_data(item) {
down_cast_data!(fn_data, FunctionData, item.span);
if !self.span.filter_generated(Some(fn_data.span), item.span) {
@ -547,7 +547,10 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
self.nest(item.id, |v| v.visit_block(&body));
}
fn process_static_or_const_item(&mut self, item: &ast::Item, typ: &ast::Ty, expr: &ast::Expr) {
fn process_static_or_const_item(&mut self,
item: &'l ast::Item,
typ: &'l ast::Ty,
expr: &'l ast::Expr) {
if let Some(var_data) = self.save_ctxt.get_item_data(item) {
down_cast_data!(var_data, VariableData, item.span);
if !self.span.filter_generated(Some(var_data.span), item.span) {
@ -562,11 +565,11 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
id: ast::NodeId,
name: ast::Name,
span: Span,
typ: &ast::Ty,
expr: &ast::Expr,
typ: &'l ast::Ty,
expr: &'l ast::Expr,
parent_id: DefId,
vis: Visibility,
attrs: &[Attribute]) {
attrs: &'l [Attribute]) {
let qualname = format!("::{}", self.tcx.node_path_str(id));
let sub_span = self.span.sub_span_after_keyword(span, keywords::Const);
@ -594,9 +597,9 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
// FIXME tuple structs should generate tuple-specific data.
fn process_struct(&mut self,
item: &ast::Item,
def: &ast::VariantData,
ty_params: &ast::Generics) {
item: &'l ast::Item,
def: &'l ast::VariantData,
ty_params: &'l ast::Generics) {
let name = item.ident.to_string();
let qualname = format!("::{}", self.tcx.node_path_str(item.id));
@ -641,9 +644,9 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
}
fn process_enum(&mut self,
item: &ast::Item,
enum_definition: &ast::EnumDef,
ty_params: &ast::Generics) {
item: &'l ast::Item,
enum_definition: &'l ast::EnumDef,
ty_params: &'l ast::Generics) {
let enum_data = self.save_ctxt.get_item_data(item);
let enum_data = match enum_data {
None => return,
@ -721,11 +724,11 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
}
fn process_impl(&mut self,
item: &ast::Item,
type_parameters: &ast::Generics,
trait_ref: &Option<ast::TraitRef>,
typ: &ast::Ty,
impl_items: &[ast::ImplItem]) {
item: &'l ast::Item,
type_parameters: &'l ast::Generics,
trait_ref: &'l Option<ast::TraitRef>,
typ: &'l ast::Ty,
impl_items: &'l [ast::ImplItem]) {
let mut has_self_ref = false;
if let Some(impl_data) = self.save_ctxt.get_item_data(item) {
down_cast_data!(impl_data, ImplData, item.span);
@ -764,10 +767,10 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
}
fn process_trait(&mut self,
item: &ast::Item,
generics: &ast::Generics,
trait_refs: &ast::TyParamBounds,
methods: &[ast::TraitItem]) {
item: &'l ast::Item,
generics: &'l ast::Generics,
trait_refs: &'l ast::TyParamBounds,
methods: &'l [ast::TraitItem]) {
let name = item.ident.to_string();
let qualname = format!("::{}", self.tcx.node_path_str(item.id));
let mut val = name.clone();
@ -938,11 +941,11 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
}
fn process_struct_lit(&mut self,
ex: &ast::Expr,
path: &ast::Path,
fields: &Vec<ast::Field>,
variant: &ty::VariantDef,
base: &Option<P<ast::Expr>>) {
ex: &'l ast::Expr,
path: &'l ast::Path,
fields: &'l [ast::Field],
variant: &'l ty::VariantDef,
base: &'l Option<P<ast::Expr>>) {
self.write_sub_paths_truncated(path, false);
if let Some(struct_lit_data) = self.save_ctxt.get_expr_data(ex) {
@ -969,7 +972,7 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
walk_list!(self, visit_expr, base);
}
fn process_method_call(&mut self, ex: &ast::Expr, args: &Vec<P<ast::Expr>>) {
fn process_method_call(&mut self, ex: &'l ast::Expr, args: &'l [P<ast::Expr>]) {
if let Some(mcd) = self.save_ctxt.get_expr_data(ex) {
down_cast_data!(mcd, MethodCallData, ex.span);
if !self.span.filter_generated(Some(mcd.span), ex.span) {
@ -981,7 +984,7 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
walk_list!(self, visit_expr, args);
}
fn process_pat(&mut self, p: &ast::Pat) {
fn process_pat(&mut self, p: &'l ast::Pat) {
match p.node {
PatKind::Struct(ref path, ref fields, _) => {
visit::walk_path(self, path);
@ -1014,7 +1017,7 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
}
fn process_var_decl(&mut self, p: &ast::Pat, value: String) {
fn process_var_decl(&mut self, p: &'l ast::Pat, value: String) {
// The local could declare multiple new vars, we must walk the
// pattern and collect them all.
let mut collector = PathCollector::new();
@ -1105,7 +1108,7 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
}
}
fn process_trait_item(&mut self, trait_item: &ast::TraitItem, trait_id: DefId) {
fn process_trait_item(&mut self, trait_item: &'l ast::TraitItem, trait_id: DefId) {
self.process_macro_use(trait_item.span, trait_item.id);
match trait_item.node {
ast::TraitItemKind::Const(ref ty, Some(ref expr)) => {
@ -1133,7 +1136,7 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
}
}
fn process_impl_item(&mut self, impl_item: &ast::ImplItem, impl_id: DefId) {
fn process_impl_item(&mut self, impl_item: &'l ast::ImplItem, impl_id: DefId) {
self.process_macro_use(impl_item.span, impl_item.id);
match impl_item.node {
ast::ImplItemKind::Const(ref ty, ref expr) => {
@ -1161,8 +1164,8 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
}
}
impl<'l, 'tcx: 'l, 'll, D: Dump +'ll> Visitor for DumpVisitor<'l, 'tcx, 'll, D> {
fn visit_item(&mut self, item: &ast::Item) {
impl<'l, 'tcx: 'l, 'll, D: Dump +'ll> Visitor<'l> for DumpVisitor<'l, 'tcx, 'll, D> {
fn visit_item(&mut self, item: &'l ast::Item) {
use syntax::ast::ItemKind::*;
self.process_macro_use(item.span, item.id);
match item.node {
@ -1306,7 +1309,7 @@ impl<'l, 'tcx: 'l, 'll, D: Dump +'ll> Visitor for DumpVisitor<'l, 'tcx, 'll, D>
}
}
fn visit_generics(&mut self, generics: &ast::Generics) {
fn visit_generics(&mut self, generics: &'l ast::Generics) {
for param in generics.ty_params.iter() {
for bound in param.bounds.iter() {
if let ast::TraitTyParamBound(ref trait_ref, _) = *bound {
@ -1319,7 +1322,7 @@ impl<'l, 'tcx: 'l, 'll, D: Dump +'ll> Visitor for DumpVisitor<'l, 'tcx, 'll, D>
}
}
fn visit_ty(&mut self, t: &ast::Ty) {
fn visit_ty(&mut self, t: &'l ast::Ty) {
self.process_macro_use(t.span, t.id);
match t.node {
ast::TyKind::Path(_, ref path) => {
@ -1343,7 +1346,7 @@ impl<'l, 'tcx: 'l, 'll, D: Dump +'ll> Visitor for DumpVisitor<'l, 'tcx, 'll, D>
}
}
fn visit_expr(&mut self, ex: &ast::Expr) {
fn visit_expr(&mut self, ex: &'l ast::Expr) {
self.process_macro_use(ex.span, ex.id);
match ex.node {
ast::ExprKind::Call(ref _f, ref _args) => {
@ -1451,17 +1454,17 @@ impl<'l, 'tcx: 'l, 'll, D: Dump +'ll> Visitor for DumpVisitor<'l, 'tcx, 'll, D>
}
}
fn visit_mac(&mut self, mac: &ast::Mac) {
fn visit_mac(&mut self, mac: &'l ast::Mac) {
// These shouldn't exist in the AST at this point, log a span bug.
span_bug!(mac.span, "macro invocation should have been expanded out of AST");
}
fn visit_pat(&mut self, p: &ast::Pat) {
fn visit_pat(&mut self, p: &'l ast::Pat) {
self.process_macro_use(p.span, p.id);
self.process_pat(p);
}
fn visit_arm(&mut self, arm: &ast::Arm) {
fn visit_arm(&mut self, arm: &'l ast::Arm) {
let mut collector = PathCollector::new();
for pattern in &arm.pats {
// collect paths from the arm's patterns
@ -1524,12 +1527,12 @@ impl<'l, 'tcx: 'l, 'll, D: Dump +'ll> Visitor for DumpVisitor<'l, 'tcx, 'll, D>
self.visit_expr(&arm.body);
}
fn visit_stmt(&mut self, s: &ast::Stmt) {
fn visit_stmt(&mut self, s: &'l ast::Stmt) {
self.process_macro_use(s.span, s.id);
visit::walk_stmt(self, s)
}
fn visit_local(&mut self, l: &ast::Local) {
fn visit_local(&mut self, l: &'l ast::Local) {
self.process_macro_use(l.span, l.id);
let value = l.init.as_ref().map(|i| self.span.snippet(i.span)).unwrap_or(String::new());
self.process_var_decl(&l.pat, value);

2
src/librustc_save_analysis/lib.rs
View File

@ -741,7 +741,7 @@ impl PathCollector {
}
}
impl Visitor for PathCollector {
impl<'a> Visitor<'a> for PathCollector {
fn visit_pat(&mut self, p: &ast::Pat) {
match p.node {
PatKind::Struct(ref path, ..) => {

2
src/libsyntax/ext/expand.rs
View File

@ -85,7 +85,7 @@ macro_rules! expansions {
}
}
pub fn visit_with<V: Visitor>(&self, visitor: &mut V) {
pub fn visit_with<'a, V: Visitor<'a>>(&'a self, visitor: &mut V) {
match *self {
Expansion::OptExpr(Some(ref expr)) => visitor.visit_expr(expr),
Expansion::OptExpr(None) => {}

28
src/libsyntax/feature_gate.rs
View File

@ -1007,7 +1007,7 @@ fn starts_with_digit(s: &str) -> bool {
s.as_bytes().first().cloned().map_or(false, |b| b >= b'0' && b <= b'9')
}
impl<'a> Visitor for PostExpansionVisitor<'a> {
impl<'a> Visitor<'a> for PostExpansionVisitor<'a> {
fn visit_attribute(&mut self, attr: &ast::Attribute) {
if !self.context.cm.span_allows_unstable(attr.span) {
// check for gated attributes
@ -1028,7 +1028,7 @@ impl<'a> Visitor for PostExpansionVisitor<'a> {
}
}
fn visit_item(&mut self, i: &ast::Item) {
fn visit_item(&mut self, i: &'a ast::Item) {
match i.node {
ast::ItemKind::ExternCrate(_) => {
if attr::contains_name(&i.attrs[..], "macro_reexport") {
@ -1121,7 +1121,7 @@ impl<'a> Visitor for PostExpansionVisitor<'a> {
visit::walk_item(self, i);
}
fn visit_foreign_item(&mut self, i: &ast::ForeignItem) {
fn visit_foreign_item(&mut self, i: &'a ast::ForeignItem) {
let links_to_llvm = match attr::first_attr_value_str_by_name(&i.attrs, "link_name") {
Some(val) => val.as_str().starts_with("llvm."),
_ => false
@ -1134,7 +1134,7 @@ impl<'a> Visitor for PostExpansionVisitor<'a> {
visit::walk_foreign_item(self, i)
}
fn visit_ty(&mut self, ty: &ast::Ty) {
fn visit_ty(&mut self, ty: &'a ast::Ty) {
match ty.node {
ast::TyKind::BareFn(ref bare_fn_ty) => {
self.check_abi(bare_fn_ty.abi, ty.span);
@ -1152,7 +1152,7 @@ impl<'a> Visitor for PostExpansionVisitor<'a> {
visit::walk_ty(self, ty)
}
fn visit_fn_ret_ty(&mut self, ret_ty: &ast::FunctionRetTy) {
fn visit_fn_ret_ty(&mut self, ret_ty: &'a ast::FunctionRetTy) {
if let ast::FunctionRetTy::Ty(ref output_ty) = *ret_ty {
match output_ty.node {
ast::TyKind::Never => return,
@ -1162,7 +1162,7 @@ impl<'a> Visitor for PostExpansionVisitor<'a> {
}
}
fn visit_expr(&mut self, e: &ast::Expr) {
fn visit_expr(&mut self, e: &'a ast::Expr) {
match e.node {
ast::ExprKind::Box(_) => {
gate_feature_post!(&self, box_syntax, e.span, EXPLAIN_BOX_SYNTAX);
@ -1201,7 +1201,7 @@ impl<'a> Visitor for PostExpansionVisitor<'a> {
visit::walk_expr(self, e);
}
fn visit_pat(&mut self, pattern: &ast::Pat) {
fn visit_pat(&mut self, pattern: &'a ast::Pat) {
match pattern.node {
PatKind::Slice(_, Some(_), ref last) if !last.is_empty() => {
gate_feature_post!(&self, advanced_slice_patterns,
@ -1235,8 +1235,8 @@ impl<'a> Visitor for PostExpansionVisitor<'a> {
}
fn visit_fn(&mut self,
fn_kind: FnKind,
fn_decl: &ast::FnDecl,
fn_kind: FnKind<'a>,
fn_decl: &'a ast::FnDecl,
span: Span,
_node_id: NodeId) {
// check for const fn declarations
@ -1262,7 +1262,7 @@ impl<'a> Visitor for PostExpansionVisitor<'a> {
visit::walk_fn(self, fn_kind, fn_decl, span);
}
fn visit_trait_item(&mut self, ti: &ast::TraitItem) {
fn visit_trait_item(&mut self, ti: &'a ast::TraitItem) {
match ti.node {
ast::TraitItemKind::Const(..) => {
gate_feature_post!(&self, associated_consts,
@ -1286,7 +1286,7 @@ impl<'a> Visitor for PostExpansionVisitor<'a> {
visit::walk_trait_item(self, ti);
}
fn visit_impl_item(&mut self, ii: &ast::ImplItem) {
fn visit_impl_item(&mut self, ii: &'a ast::ImplItem) {
if ii.defaultness == ast::Defaultness::Default {
gate_feature_post!(&self, specialization,
ii.span,
@ -1309,7 +1309,7 @@ impl<'a> Visitor for PostExpansionVisitor<'a> {
visit::walk_impl_item(self, ii);
}
fn visit_vis(&mut self, vis: &ast::Visibility) {
fn visit_vis(&mut self, vis: &'a ast::Visibility) {
let span = match *vis {
ast::Visibility::Crate(span) => span,
ast::Visibility::Restricted { ref path, .. } => path.span,
@ -1320,7 +1320,7 @@ impl<'a> Visitor for PostExpansionVisitor<'a> {
visit::walk_vis(self, vis)
}
fn visit_generics(&mut self, g: &ast::Generics) {
fn visit_generics(&mut self, g: &'a ast::Generics) {
for t in &g.ty_params {
if !t.attrs.is_empty() {
gate_feature_post!(&self, generic_param_attrs, t.attrs[0].span,
@ -1330,7 +1330,7 @@ impl<'a> Visitor for PostExpansionVisitor<'a> {
visit::walk_generics(self, g)
}
fn visit_lifetime_def(&mut self, lifetime_def: &ast::LifetimeDef) {
fn visit_lifetime_def(&mut self, lifetime_def: &'a ast::LifetimeDef) {
if !lifetime_def.attrs.is_empty() {
gate_feature_post!(&self, generic_param_attrs, lifetime_def.attrs[0].span,
"attributes on lifetime bindings are experimental");

4
src/libsyntax/parse/mod.rs
View File

@ -940,8 +940,8 @@ mod tests {
struct PatIdentVisitor {
spans: Vec<Span>
}
impl ::visit::Visitor for PatIdentVisitor {
fn visit_pat(&mut self, p: &ast::Pat) {
impl<'a> ::visit::Visitor<'a> for PatIdentVisitor {
fn visit_pat(&mut self, p: &'a ast::Pat) {
match p.node {
PatKind::Ident(_ , ref spannedident, _) => {
self.spans.push(spannedident.span.clone());

10
src/libsyntax/show_span.rs
View File

@ -44,29 +44,29 @@ struct ShowSpanVisitor<'a> {
mode: Mode,
}
impl<'a> Visitor for ShowSpanVisitor<'a> {
fn visit_expr(&mut self, e: &ast::Expr) {
impl<'a> Visitor<'a> for ShowSpanVisitor<'a> {
fn visit_expr(&mut self, e: &'a ast::Expr) {
if let Mode::Expression = self.mode {
self.span_diagnostic.span_warn(e.span, "expression");
}
visit::walk_expr(self, e);
}
fn visit_pat(&mut self, p: &ast::Pat) {
fn visit_pat(&mut self, p: &'a ast::Pat) {
if let Mode::Pattern = self.mode {
self.span_diagnostic.span_warn(p.span, "pattern");
}
visit::walk_pat(self, p);
}
fn visit_ty(&mut self, t: &ast::Ty) {
fn visit_ty(&mut self, t: &'a ast::Ty) {
if let Mode::Type = self.mode {
self.span_diagnostic.span_warn(t.span, "type");
}
visit::walk_ty(self, t);
}
fn visit_mac(&mut self, mac: &ast::Mac) {
fn visit_mac(&mut self, mac: &'a ast::Mac) {
visit::walk_mac(self, mac);
}
}

2
src/libsyntax/util/node_count.rs
View File

@ -26,7 +26,7 @@ impl NodeCounter {
}
}
impl Visitor for NodeCounter {
impl<'ast> Visitor<'ast> for NodeCounter {
fn visit_ident(&mut self, span: Span, ident: Ident) {
self.count += 1;
walk_ident(self, span, ident);

175
src/libsyntax/visit.rs
View File

@ -49,56 +49,56 @@ pub enum FnKind<'a> {
/// explicitly, you need to override each method. (And you also need
/// to monitor future changes to `Visitor` in case a new method with a
/// new default implementation gets introduced.)
pub trait Visitor: Sized {
pub trait Visitor<'ast>: Sized {
fn visit_name(&mut self, _span: Span, _name: Name) {
// Nothing to do.
}
fn visit_ident(&mut self, span: Span, ident: Ident) {
walk_ident(self, span, ident);
}
fn visit_mod(&mut self, m: &Mod, _s: Span, _n: NodeId) { walk_mod(self, m) }
fn visit_foreign_item(&mut self, i: &ForeignItem) { walk_foreign_item(self, i) }
fn visit_item(&mut self, i: &Item) { walk_item(self, i) }
fn visit_local(&mut self, l: &Local) { walk_local(self, l) }
fn visit_block(&mut self, b: &Block) { walk_block(self, b) }
fn visit_stmt(&mut self, s: &Stmt) { walk_stmt(self, s) }
fn visit_arm(&mut self, a: &Arm) { walk_arm(self, a) }
fn visit_pat(&mut self, p: &Pat) { walk_pat(self, p) }
fn visit_expr(&mut self, ex: &Expr) { walk_expr(self, ex) }
fn visit_expr_post(&mut self, _ex: &Expr) { }
fn visit_ty(&mut self, t: &Ty) { walk_ty(self, t) }
fn visit_generics(&mut self, g: &Generics) { walk_generics(self, g) }
fn visit_fn(&mut self, fk: FnKind, fd: &FnDecl, s: Span, _: NodeId) {
fn visit_mod(&mut self, m: &'ast Mod, _s: Span, _n: NodeId) { walk_mod(self, m) }
fn visit_foreign_item(&mut self, i: &'ast ForeignItem) { walk_foreign_item(self, i) }
fn visit_item(&mut self, i: &'ast Item) { walk_item(self, i) }
fn visit_local(&mut self, l: &'ast Local) { walk_local(self, l) }
fn visit_block(&mut self, b: &'ast Block) { walk_block(self, b) }
fn visit_stmt(&mut self, s: &'ast Stmt) { walk_stmt(self, s) }
fn visit_arm(&mut self, a: &'ast Arm) { walk_arm(self, a) }
fn visit_pat(&mut self, p: &'ast Pat) { walk_pat(self, p) }
fn visit_expr(&mut self, ex: &'ast Expr) { walk_expr(self, ex) }
fn visit_expr_post(&mut self, _ex: &'ast Expr) { }
fn visit_ty(&mut self, t: &'ast Ty) { walk_ty(self, t) }
fn visit_generics(&mut self, g: &'ast Generics) { walk_generics(self, g) }
fn visit_fn(&mut self, fk: FnKind<'ast>, fd: &'ast FnDecl, s: Span, _: NodeId) {
walk_fn(self, fk, fd, s)
}
fn visit_trait_item(&mut self, ti: &TraitItem) { walk_trait_item(self, ti) }
fn visit_impl_item(&mut self, ii: &ImplItem) { walk_impl_item(self, ii) }
fn visit_trait_ref(&mut self, t: &TraitRef) { walk_trait_ref(self, t) }
fn visit_ty_param_bound(&mut self, bounds: &TyParamBound) {
fn visit_trait_item(&mut self, ti: &'ast TraitItem) { walk_trait_item(self, ti) }
fn visit_impl_item(&mut self, ii: &'ast ImplItem) { walk_impl_item(self, ii) }
fn visit_trait_ref(&mut self, t: &'ast TraitRef) { walk_trait_ref(self, t) }
fn visit_ty_param_bound(&mut self, bounds: &'ast TyParamBound) {
walk_ty_param_bound(self, bounds)
}
fn visit_poly_trait_ref(&mut self, t: &PolyTraitRef, m: &TraitBoundModifier) {
fn visit_poly_trait_ref(&mut self, t: &'ast PolyTraitRef, m: &'ast TraitBoundModifier) {
walk_poly_trait_ref(self, t, m)
}
fn visit_variant_data(&mut self, s: &VariantData, _: Ident,
_: &Generics, _: NodeId, _: Span) {
fn visit_variant_data(&mut self, s: &'ast VariantData, _: Ident,
_: &'ast Generics, _: NodeId, _: Span) {
walk_struct_def(self, s)
}
fn visit_struct_field(&mut self, s: &StructField) { walk_struct_field(self, s) }
fn visit_enum_def(&mut self, enum_definition: &EnumDef,
generics: &Generics, item_id: NodeId, _: Span) {
fn visit_struct_field(&mut self, s: &'ast StructField) { walk_struct_field(self, s) }
fn visit_enum_def(&mut self, enum_definition: &'ast EnumDef,
generics: &'ast Generics, item_id: NodeId, _: Span) {
walk_enum_def(self, enum_definition, generics, item_id)
}
fn visit_variant(&mut self, v: &Variant, g: &Generics, item_id: NodeId) {
fn visit_variant(&mut self, v: &'ast Variant, g: &'ast Generics, item_id: NodeId) {
walk_variant(self, v, g, item_id)
}
fn visit_lifetime(&mut self, lifetime: &Lifetime) {
fn visit_lifetime(&mut self, lifetime: &'ast Lifetime) {
walk_lifetime(self, lifetime)
}
fn visit_lifetime_def(&mut self, lifetime: &LifetimeDef) {
fn visit_lifetime_def(&mut self, lifetime: &'ast LifetimeDef) {
walk_lifetime_def(self, lifetime)
}
fn visit_mac(&mut self, _mac: &Mac) {
fn visit_mac(&mut self, _mac: &'ast Mac) {
panic!("visit_mac disabled by default");
// NB: see note about macros above.
// if you really want a visitor that
@ -106,29 +106,29 @@ pub trait Visitor: Sized {
// definition in your trait impl:
// visit::walk_mac(self, _mac)
}
fn visit_path(&mut self, path: &Path, _id: NodeId) {
fn visit_path(&mut self, path: &'ast Path, _id: NodeId) {
walk_path(self, path)
}
fn visit_path_list_item(&mut self, prefix: &Path, item: &PathListItem) {
fn visit_path_list_item(&mut self, prefix: &'ast Path, item: &'ast PathListItem) {
walk_path_list_item(self, prefix, item)
}
fn visit_path_segment(&mut self, path_span: Span, path_segment: &PathSegment) {
fn visit_path_segment(&mut self, path_span: Span, path_segment: &'ast PathSegment) {
walk_path_segment(self, path_span, path_segment)
}
fn visit_path_parameters(&mut self, path_span: Span, path_parameters: &PathParameters) {
fn visit_path_parameters(&mut self, path_span: Span, path_parameters: &'ast PathParameters) {
walk_path_parameters(self, path_span, path_parameters)
}
fn visit_assoc_type_binding(&mut self, type_binding: &TypeBinding) {
fn visit_assoc_type_binding(&mut self, type_binding: &'ast TypeBinding) {
walk_assoc_type_binding(self, type_binding)
}
fn visit_attribute(&mut self, _attr: &Attribute) {}
fn visit_macro_def(&mut self, macro_def: &MacroDef) {
fn visit_attribute(&mut self, _attr: &'ast Attribute) {}
fn visit_macro_def(&mut self, macro_def: &'ast MacroDef) {
walk_macro_def(self, macro_def)
}
fn visit_vis(&mut self, vis: &Visibility) {
fn visit_vis(&mut self, vis: &'ast Visibility) {
walk_vis(self, vis)
}
fn visit_fn_ret_ty(&mut self, ret_ty: &FunctionRetTy) {
fn visit_fn_ret_ty(&mut self, ret_ty: &'ast FunctionRetTy) {
walk_fn_ret_ty(self, ret_ty)
}
}
@ -147,45 +147,46 @@ macro_rules! walk_list {
}
}
pub fn walk_opt_name<V: Visitor>(visitor: &mut V, span: Span, opt_name: Option<Name>) {
pub fn walk_opt_name<'a, V: Visitor<'a>>(visitor: &mut V, span: Span, opt_name: Option<Name>) {
if let Some(name) = opt_name {
visitor.visit_name(span, name);
}
}
pub fn walk_opt_ident<V: Visitor>(visitor: &mut V, span: Span, opt_ident: Option<Ident>) {
pub fn walk_opt_ident<'a, V: Visitor<'a>>(visitor: &mut V, span: Span, opt_ident: Option<Ident>) {
if let Some(ident) = opt_ident {
visitor.visit_ident(span, ident);
}
}
pub fn walk_opt_sp_ident<V: Visitor>(visitor: &mut V, opt_sp_ident: &Option<Spanned<Ident>>) {
pub fn walk_opt_sp_ident<'a, V: Visitor<'a>>(visitor: &mut V,
opt_sp_ident: &Option<Spanned<Ident>>) {
if let Some(ref sp_ident) = *opt_sp_ident {
visitor.visit_ident(sp_ident.span, sp_ident.node);
}
}
pub fn walk_ident<V: Visitor>(visitor: &mut V, span: Span, ident: Ident) {
pub fn walk_ident<'a, V: Visitor<'a>>(visitor: &mut V, span: Span, ident: Ident) {
visitor.visit_name(span, ident.name);
}
pub fn walk_crate<V: Visitor>(visitor: &mut V, krate: &Crate) {
pub fn walk_crate<'a, V: Visitor<'a>>(visitor: &mut V, krate: &'a Crate) {
visitor.visit_mod(&krate.module, krate.span, CRATE_NODE_ID);
walk_list!(visitor, visit_attribute, &krate.attrs);
walk_list!(visitor, visit_macro_def, &krate.exported_macros);
}
pub fn walk_macro_def<V: Visitor>(visitor: &mut V, macro_def: &MacroDef) {
pub fn walk_macro_def<'a, V: Visitor<'a>>(visitor: &mut V, macro_def: &'a MacroDef) {
visitor.visit_ident(macro_def.span, macro_def.ident);
walk_opt_ident(visitor, macro_def.span, macro_def.imported_from);
walk_list!(visitor, visit_attribute, &macro_def.attrs);
}
pub fn walk_mod<V: Visitor>(visitor: &mut V, module: &Mod) {
pub fn walk_mod<'a, V: Visitor<'a>>(visitor: &mut V, module: &'a Mod) {
walk_list!(visitor, visit_item, &module.items);
}
pub fn walk_local<V: Visitor>(visitor: &mut V, local: &Local) {
pub fn walk_local<'a, V: Visitor<'a>>(visitor: &mut V, local: &'a Local) {
for attr in local.attrs.iter() {
visitor.visit_attribute(attr);
}
@ -194,28 +195,30 @@ pub fn walk_local<V: Visitor>(visitor: &mut V, local: &Local) {
walk_list!(visitor, visit_expr, &local.init);
}
pub fn walk_lifetime<V: Visitor>(visitor: &mut V, lifetime: &Lifetime) {
pub fn walk_lifetime<'a, V: Visitor<'a>>(visitor: &mut V, lifetime: &'a Lifetime) {
visitor.visit_name(lifetime.span, lifetime.name);
}
pub fn walk_lifetime_def<V: Visitor>(visitor: &mut V, lifetime_def: &LifetimeDef) {
pub fn walk_lifetime_def<'a, V: Visitor<'a>>(visitor: &mut V, lifetime_def: &'a LifetimeDef) {
visitor.visit_lifetime(&lifetime_def.lifetime);
walk_list!(visitor, visit_lifetime, &lifetime_def.bounds);
walk_list!(visitor, visit_attribute, &*lifetime_def.attrs);
}
pub fn walk_poly_trait_ref<V>(visitor: &mut V, trait_ref: &PolyTraitRef, _: &TraitBoundModifier)
where V: Visitor,
pub fn walk_poly_trait_ref<'a, V>(visitor: &mut V,
trait_ref: &'a PolyTraitRef,
_: &TraitBoundModifier)
where V: Visitor<'a>,
{
walk_list!(visitor, visit_lifetime_def, &trait_ref.bound_lifetimes);
visitor.visit_trait_ref(&trait_ref.trait_ref);
}
pub fn walk_trait_ref<V: Visitor>(visitor: &mut V, trait_ref: &TraitRef) {
pub fn walk_trait_ref<'a, V: Visitor<'a>>(visitor: &mut V, trait_ref: &'a TraitRef) {
visitor.visit_path(&trait_ref.path, trait_ref.ref_id)
}
pub fn walk_item<V: Visitor>(visitor: &mut V, item: &Item) {
pub fn walk_item<'a, V: Visitor<'a>>(visitor: &mut V, item: &'a Item) {
visitor.visit_vis(&item.vis);
visitor.visit_ident(item.span, item.ident);
match item.node {
@ -294,15 +297,18 @@ pub fn walk_item<V: Visitor>(visitor: &mut V, item: &Item) {
walk_list!(visitor, visit_attribute, &item.attrs);
}
pub fn walk_enum_def<V: Visitor>(visitor: &mut V,
enum_definition: &EnumDef,
generics: &Generics,
pub fn walk_enum_def<'a, V: Visitor<'a>>(visitor: &mut V,
enum_definition: &'a EnumDef,
generics: &'a Generics,
item_id: NodeId) {
walk_list!(visitor, visit_variant, &enum_definition.variants, generics, item_id);
}
pub fn walk_variant<V>(visitor: &mut V, variant: &Variant, generics: &Generics, item_id: NodeId)
where V: Visitor,
pub fn walk_variant<'a, V>(visitor: &mut V,
variant: &'a Variant,
generics: &'a Generics,
item_id: NodeId)
where V: Visitor<'a>,
{
visitor.visit_ident(variant.span, variant.node.name);
visitor.visit_variant_data(&variant.node.data, variant.node.name,
@ -311,7 +317,7 @@ pub fn walk_variant<V>(visitor: &mut V, variant: &Variant, generics: &Generics,
walk_list!(visitor, visit_attribute, &variant.node.attrs);
}
pub fn walk_ty<V: Visitor>(visitor: &mut V, typ: &Ty) {
pub fn walk_ty<'a, V: Visitor<'a>>(visitor: &mut V, typ: &'a Ty) {
match typ.node {
TyKind::Slice(ref ty) | TyKind::Paren(ref ty) => {
visitor.visit_ty(ty)
@ -361,24 +367,30 @@ pub fn walk_ty<V: Visitor>(visitor: &mut V, typ: &Ty) {
}
}
pub fn walk_path<V: Visitor>(visitor: &mut V, path: &Path) {
pub fn walk_path<'a, V: Visitor<'a>>(visitor: &mut V, path: &'a Path) {
for segment in &path.segments {
visitor.visit_path_segment(path.span, segment);
}
}
pub fn walk_path_list_item<V: Visitor>(visitor: &mut V, _prefix: &Path, item: &PathListItem) {
pub fn walk_path_list_item<'a, V: Visitor<'a>>(visitor: &mut V,
_prefix: &Path,
item: &'a PathListItem) {
visitor.visit_ident(item.span, item.node.name);
walk_opt_ident(visitor, item.span, item.node.rename);
}
pub fn walk_path_segment<V: Visitor>(visitor: &mut V, path_span: Span, segment: &PathSegment) {
pub fn walk_path_segment<'a, V: Visitor<'a>>(visitor: &mut V,
path_span: Span,
segment: &'a PathSegment) {
visitor.visit_ident(path_span, segment.identifier);
visitor.visit_path_parameters(path_span, &segment.parameters);
}
pub fn walk_path_parameters<V>(visitor: &mut V, _path_span: Span, path_parameters: &PathParameters)
where V: Visitor,
pub fn walk_path_parameters<'a, V>(visitor: &mut V,
_path_span: Span,
path_parameters: &'a PathParameters)
where V: Visitor<'a>,
{
match *path_parameters {
PathParameters::AngleBracketed(ref data) => {
@ -393,12 +405,13 @@ pub fn walk_path_parameters<V>(visitor: &mut V, _path_span: Span, path_parameter
}
}
pub fn walk_assoc_type_binding<V: Visitor>(visitor: &mut V, type_binding: &TypeBinding) {
pub fn walk_assoc_type_binding<'a, V: Visitor<'a>>(visitor: &mut V,
type_binding: &'a TypeBinding) {
visitor.visit_ident(type_binding.span, type_binding.ident);
visitor.visit_ty(&type_binding.ty);
}
pub fn walk_pat<V: Visitor>(visitor: &mut V, pattern: &Pat) {
pub fn walk_pat<'a, V: Visitor<'a>>(visitor: &mut V, pattern: &'a Pat) {
match pattern.node {
PatKind::TupleStruct(ref path, ref children, _) => {
visitor.visit_path(path, pattern.id);
@ -443,7 +456,7 @@ pub fn walk_pat<V: Visitor>(visitor: &mut V, pattern: &Pat) {
}
}
pub fn walk_foreign_item<V: Visitor>(visitor: &mut V, foreign_item: &ForeignItem) {
pub fn walk_foreign_item<'a, V: Visitor<'a>>(visitor: &mut V, foreign_item: &'a ForeignItem) {
visitor.visit_vis(&foreign_item.vis);
visitor.visit_ident(foreign_item.span, foreign_item.ident);
@ -458,7 +471,7 @@ pub fn walk_foreign_item<V: Visitor>(visitor: &mut V, foreign_item: &ForeignItem
walk_list!(visitor, visit_attribute, &foreign_item.attrs);
}
pub fn walk_ty_param_bound<V: Visitor>(visitor: &mut V, bound: &TyParamBound) {
pub fn walk_ty_param_bound<'a, V: Visitor<'a>>(visitor: &mut V, bound: &'a TyParamBound) {
match *bound {
TraitTyParamBound(ref typ, ref modifier) => {
visitor.visit_poly_trait_ref(typ, modifier);
@ -469,7 +482,7 @@ pub fn walk_ty_param_bound<V: Visitor>(visitor: &mut V, bound: &TyParamBound) {
}
}
pub fn walk_generics<V: Visitor>(visitor: &mut V, generics: &Generics) {
pub fn walk_generics<'a, V: Visitor<'a>>(visitor: &mut V, generics: &'a Generics) {
for param in &generics.ty_params {
visitor.visit_ident(param.span, param.ident);
walk_list!(visitor, visit_ty_param_bound, &param.bounds);
@ -504,13 +517,13 @@ pub fn walk_generics<V: Visitor>(visitor: &mut V, generics: &Generics) {
}
}
pub fn walk_fn_ret_ty<V: Visitor>(visitor: &mut V, ret_ty: &FunctionRetTy) {
pub fn walk_fn_ret_ty<'a, V: Visitor<'a>>(visitor: &mut V, ret_ty: &'a FunctionRetTy) {
if let FunctionRetTy::Ty(ref output_ty) = *ret_ty {
visitor.visit_ty(output_ty)
}
}
pub fn walk_fn_decl<V: Visitor>(visitor: &mut V, function_declaration: &FnDecl) {
pub fn walk_fn_decl<'a, V: Visitor<'a>>(visitor: &mut V, function_declaration: &'a FnDecl) {
for argument in &function_declaration.inputs {
visitor.visit_pat(&argument.pat);
visitor.visit_ty(&argument.ty)
@ -518,8 +531,8 @@ pub fn walk_fn_decl<V: Visitor>(visitor: &mut V, function_declaration: &FnDecl)
visitor.visit_fn_ret_ty(&function_declaration.output)
}
pub fn walk_fn<V>(visitor: &mut V, kind: FnKind, declaration: &FnDecl, _span: Span)
where V: Visitor,
pub fn walk_fn<'a, V>(visitor: &mut V, kind: FnKind<'a>, declaration: &'a FnDecl, _span: Span)
where V: Visitor<'a>,
{
match kind {
FnKind::ItemFn(_, generics, _, _, _, _, body) => {
@ -539,7 +552,7 @@ pub fn walk_fn<V>(visitor: &mut V, kind: FnKind, declaration: &FnDecl, _span: Sp
}
}
pub fn walk_trait_item<V: Visitor>(visitor: &mut V, trait_item: &TraitItem) {
pub fn walk_trait_item<'a, V: Visitor<'a>>(visitor: &mut V, trait_item: &'a TraitItem) {
visitor.visit_ident(trait_item.span, trait_item.ident);
walk_list!(visitor, visit_attribute, &trait_item.attrs);
match trait_item.node {
@ -565,7 +578,7 @@ pub fn walk_trait_item<V: Visitor>(visitor: &mut V, trait_item: &TraitItem) {
}
}
pub fn walk_impl_item<V: Visitor>(visitor: &mut V, impl_item: &ImplItem) {
pub fn walk_impl_item<'a, V: Visitor<'a>>(visitor: &mut V, impl_item: &'a ImplItem) {
visitor.visit_vis(&impl_item.vis);
visitor.visit_ident(impl_item.span, impl_item.ident);
walk_list!(visitor, visit_attribute, &impl_item.attrs);
@ -587,22 +600,22 @@ pub fn walk_impl_item<V: Visitor>(visitor: &mut V, impl_item: &ImplItem) {
}
}
pub fn walk_struct_def<V: Visitor>(visitor: &mut V, struct_definition: &VariantData) {
pub fn walk_struct_def<'a, V: Visitor<'a>>(visitor: &mut V, struct_definition: &'a VariantData) {
walk_list!(visitor, visit_struct_field, struct_definition.fields());
}
pub fn walk_struct_field<V: Visitor>(visitor: &mut V, struct_field: &StructField) {
pub fn walk_struct_field<'a, V: Visitor<'a>>(visitor: &mut V, struct_field: &'a StructField) {
visitor.visit_vis(&struct_field.vis);
walk_opt_ident(visitor, struct_field.span, struct_field.ident);
visitor.visit_ty(&struct_field.ty);
walk_list!(visitor, visit_attribute, &struct_field.attrs);
}
pub fn walk_block<V: Visitor>(visitor: &mut V, block: &Block) {
pub fn walk_block<'a, V: Visitor<'a>>(visitor: &mut V, block: &'a Block) {
walk_list!(visitor, visit_stmt, &block.stmts);
}
pub fn walk_stmt<V: Visitor>(visitor: &mut V, statement: &Stmt) {
pub fn walk_stmt<'a, V: Visitor<'a>>(visitor: &mut V, statement: &'a Stmt) {
match statement.node {
StmtKind::Local(ref local) => visitor.visit_local(local),
StmtKind::Item(ref item) => visitor.visit_item(item),
@ -619,11 +632,11 @@ pub fn walk_stmt<V: Visitor>(visitor: &mut V, statement: &Stmt) {
}
}
pub fn walk_mac<V: Visitor>(_: &mut V, _: &Mac) {
pub fn walk_mac<'a, V: Visitor<'a>>(_: &mut V, _: &Mac) {
// Empty!
}
pub fn walk_expr<V: Visitor>(visitor: &mut V, expression: &Expr) {
pub fn walk_expr<'a, V: Visitor<'a>>(visitor: &mut V, expression: &'a Expr) {
for attr in expression.attrs.iter() {
visitor.visit_attribute(attr);
}
@ -776,14 +789,14 @@ pub fn walk_expr<V: Visitor>(visitor: &mut V, expression: &Expr) {
visitor.visit_expr_post(expression)
}
pub fn walk_arm<V: Visitor>(visitor: &mut V, arm: &Arm) {
pub fn walk_arm<'a, V: Visitor<'a>>(visitor: &mut V, arm: &'a Arm) {
walk_list!(visitor, visit_pat, &arm.pats);
walk_list!(visitor, visit_expr, &arm.guard);
visitor.visit_expr(&arm.body);
walk_list!(visitor, visit_attribute, &arm.attrs);
}
pub fn walk_vis<V: Visitor>(visitor: &mut V, vis: &Visibility) {
pub fn walk_vis<'a, V: Visitor<'a>>(visitor: &mut V, vis: &'a Visibility) {
if let Visibility::Restricted { ref path, id } = *vis {
visitor.visit_path(path, id);
}

3
src/libsyntax_ext/deriving/custom.rs
View File

@ -21,7 +21,7 @@ use syntax::visit::Visitor;
struct MarkAttrs<'a>(&'a [ast::Name]);
impl<'a> Visitor for MarkAttrs<'a> {
impl<'a> Visitor<'a> for MarkAttrs<'a> {
fn visit_attribute(&mut self, attr: &Attribute) {
if self.0.contains(&attr.name()) {
mark_used(attr);
@ -101,4 +101,3 @@ impl MultiItemModifier for CustomDerive {
res
}
}

4
src/libsyntax_ext/deriving/generic/mod.rs
View File

@ -361,8 +361,8 @@ fn find_type_parameters(ty: &ast::Ty,
types: Vec<P<ast::Ty>>,
}
impl<'a, 'b> visit::Visitor for Visitor<'a, 'b> {
fn visit_ty(&mut self, ty: &ast::Ty) {
impl<'a, 'b> visit::Visitor<'a> for Visitor<'a, 'b> {
fn visit_ty(&mut self, ty: &'a ast::Ty) {
match ty.node {
ast::TyKind::Path(_, ref path) if !path.global => {
if let Some(segment) = path.segments.first() {

25
src/libsyntax_ext/proc_macro_registrar.rs
View File

@ -52,14 +52,17 @@ pub fn modify(sess: &ParseSess,
let ecfg = ExpansionConfig::default("proc_macro".to_string());
let mut cx = ExtCtxt::new(sess, ecfg, resolver);
let mut collect = CollectCustomDerives {
derives: Vec::new(),
in_root: true,
handler: handler,
is_proc_macro_crate: is_proc_macro_crate,
is_test_crate: is_test_crate,
let derives = {
let mut collect = CollectCustomDerives {
derives: Vec::new(),
in_root: true,
handler: handler,
is_proc_macro_crate: is_proc_macro_crate,
is_test_crate: is_test_crate,
};
visit::walk_crate(&mut collect, &krate);
collect.derives
};
visit::walk_crate(&mut collect, &krate);
if !is_proc_macro_crate {
return krate
@ -79,7 +82,7 @@ pub fn modify(sess: &ParseSess,
return krate;
}
krate.module.items.push(mk_registrar(&mut cx, &collect.derives));
krate.module.items.push(mk_registrar(&mut cx, &derives));
if krate.exported_macros.len() > 0 {
handler.err("cannot export macro_rules! macros from a `proc-macro` \
@ -103,8 +106,8 @@ impl<'a> CollectCustomDerives<'a> {
}
}
impl<'a> Visitor for CollectCustomDerives<'a> {
fn visit_item(&mut self, item: &ast::Item) {
impl<'a> Visitor<'a> for CollectCustomDerives<'a> {
fn visit_item(&mut self, item: &'a ast::Item) {
// First up, make sure we're checking a bare function. If we're not then
// we're just not interested in this item.
//
@ -240,7 +243,7 @@ impl<'a> Visitor for CollectCustomDerives<'a> {
visit::walk_item(self, item);
}
fn visit_mod(&mut self, m: &ast::Mod, _s: Span, id: NodeId) {
fn visit_mod(&mut self, m: &'a ast::Mod, _s: Span, id: NodeId) {
let mut prev_in_root = self.in_root;
if id != ast::CRATE_NODE_ID {
prev_in_root = mem::replace(&mut self.in_root, false);

4
src/test/compile-fail-fulldeps/auxiliary/lint_for_crate.rs
View File

@ -32,7 +32,7 @@ impl LintPass for Pass {
}
}
impl LateLintPass for Pass {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Pass {
fn check_crate(&mut self, cx: &LateContext, krate: &hir::Crate) {
if !attr::contains_name(&krate.attrs, "crate_okay") {
cx.span_lint(CRATE_NOT_OKAY, krate.span,
@ -43,5 +43,5 @@ impl LateLintPass for Pass {
#[plugin_registrar]
pub fn plugin_registrar(reg: &mut Registry) {
reg.register_late_lint_pass(box Pass as LateLintPassObject);
reg.register_late_lint_pass(box Pass);
}

4
src/test/compile-fail-fulldeps/auxiliary/lint_group_plugin_test.rs
View File

@ -34,7 +34,7 @@ impl LintPass for Pass {
}
}
impl LateLintPass for Pass {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Pass {
fn check_item(&mut self, cx: &LateContext, it: &hir::Item) {
match &*it.name.as_str() {
"lintme" => cx.span_lint(TEST_LINT, it.span, "item is named 'lintme'"),
@ -46,6 +46,6 @@ impl LateLintPass for Pass {
#[plugin_registrar]
pub fn plugin_registrar(reg: &mut Registry) {
reg.register_late_lint_pass(box Pass as LateLintPassObject);
reg.register_late_lint_pass(box Pass);
reg.register_lint_group("lint_me", vec![TEST_LINT, PLEASE_LINT]);
}

4
src/test/run-pass-fulldeps/auxiliary/lint_for_crate.rs
View File

@ -32,7 +32,7 @@ impl LintPass for Pass {
}
}
impl LateLintPass for Pass {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Pass {
fn check_crate(&mut self, cx: &LateContext, krate: &hir::Crate) {
if !attr::contains_name(&krate.attrs, "crate_okay") {
cx.span_lint(CRATE_NOT_OKAY, krate.span,
@ -43,5 +43,5 @@ impl LateLintPass for Pass {
#[plugin_registrar]
pub fn plugin_registrar(reg: &mut Registry) {
reg.register_late_lint_pass(box Pass as LateLintPassObject);
reg.register_late_lint_pass(box Pass);
}

4
src/test/run-pass-fulldeps/auxiliary/lint_group_plugin_test.rs
View File

@ -34,7 +34,7 @@ impl LintPass for Pass {
}
}
impl LateLintPass for Pass {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Pass {
fn check_item(&mut self, cx: &LateContext, it: &hir::Item) {
match &*it.name.as_str() {
"lintme" => cx.span_lint(TEST_LINT, it.span, "item is named 'lintme'"),
@ -46,6 +46,6 @@ impl LateLintPass for Pass {
#[plugin_registrar]
pub fn plugin_registrar(reg: &mut Registry) {
reg.register_late_lint_pass(box Pass as LateLintPassObject);
reg.register_late_lint_pass(box Pass);
reg.register_lint_group("lint_me", vec![TEST_LINT, PLEASE_LINT]);
}

6
src/test/run-pass-fulldeps/issue-37290/auxiliary/lint.rs
View File

@ -39,10 +39,10 @@ impl LintPass for Pass {
fn get_lints(&self) -> LintArray { lint_array!(REGION_HIERARCHY) }
}
impl LateLintPass for Pass {
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Pass {
fn check_fn(&mut self, cx: &LateContext,
fk: FnKind, _: &hir::FnDecl, expr: &hir::Expr,
span: Span, node: ast::NodeId)
fk: FnKind, _: &hir::FnDecl, expr: &hir::Expr,
span: Span, node: ast::NodeId)
{
if let FnKind::Closure(..) = fk { return }