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Rollup merge of #78710 - petrochenkov:macvisit, r=davidtwco

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rustc_ast: Do not panic by default when visiting macro calls

Panicking by default made sense when we didn't have HIR or MIR and everything worked on AST, but now all AST visitors run early and majority of them have to deal with macro calls, often by ignoring them.

The second commit renames `visit_mac` to `visit_mac_call`, the corresponding structures were renamed earlier in https://github.com/rust-lang/rust/pull/69589.
This commit is contained in:
Dylan DPC 2020-11-09 19:06:55 +01:00 • committed by GitHub
commit 8ebca242bc
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18 changed files with 29 additions and 93 deletions
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6
compiler/rustc_parse/src/parser/pat.rs
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@ -1,6 +1,6 @@
use super::{Parser, PathStyle};
use crate::{maybe_recover_from_interpolated_ty_qpath, maybe_whole};
use rustc_ast::mut_visit::{noop_visit_mac, noop_visit_pat, MutVisitor};
use rustc_ast::mut_visit::{noop_visit_pat, MutVisitor};
use rustc_ast::ptr::P;
use rustc_ast::token;
use rustc_ast::{self as ast, AttrVec, Attribute, FieldPat, MacCall, Pat, PatKind, RangeEnd};
@ -570,10 +570,6 @@ impl<'a> Parser<'a> {
fn make_all_value_bindings_mutable(pat: &mut P<Pat>) -> bool {
struct AddMut(bool);
impl MutVisitor for AddMut {
fn visit_mac(&mut self, mac: &mut MacCall) {
noop_visit_mac(mac, self);
}
fn visit_pat(&mut self, pat: &mut P<Pat>) {
if let PatKind::Ident(BindingMode::ByValue(m @ Mutability::Not), ..) = &mut pat.kind
{