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hygiene: Remove some unused impls

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This commit is contained in:
Vadim Petrochenkov 2019-06-30 14:57:34 +03:00
parent 3eafaae510
commit 4dcf9b15c4
1 changed files with 7 additions and 7 deletions
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14
src/libsyntax_pos/hygiene.rs
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@ -36,10 +36,10 @@ use rustc_data_structures::sync::Lrc;
use std::fmt;
/// A SyntaxContext represents a chain of macro expansions (represented by marks).
#[derive(Clone, Copy, PartialEq, Eq, Default, PartialOrd, Ord, Hash)]
#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub struct SyntaxContext(u32);
#[derive(Copy, Clone, Debug)]
#[derive(Debug)]
struct SyntaxContextData {
outer_mark: Mark,
transparency: Transparency,
@ -53,10 +53,10 @@ struct SyntaxContextData {
}
/// A mark is a unique ID associated with a macro expansion.
#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug, RustcEncodable, RustcDecodable)]
#[derive(Clone, Copy, PartialEq, Eq, Hash, Debug)]
pub struct Mark(u32);
#[derive(Clone, Debug)]
#[derive(Debug)]
struct MarkData {
parent: Mark,
expn_info: Option<ExpnInfo>,
@ -614,7 +614,7 @@ impl fmt::Debug for SyntaxContext {
}
/// Extra information for tracking spans of macro and syntax sugar expansion
#[derive(Clone, Hash, Debug, RustcEncodable, RustcDecodable)]
#[derive(Clone, Debug, RustcEncodable, RustcDecodable)]
pub struct ExpnInfo {
// --- The part unique to each expansion.
/// The location of the actual macro invocation or syntax sugar , e.g.
@ -676,7 +676,7 @@ impl ExpnInfo {
}
/// The source of expansion.
#[derive(Clone, Hash, Debug, PartialEq, Eq, RustcEncodable, RustcDecodable)]
#[derive(Clone, Debug, RustcEncodable, RustcDecodable)]
pub enum ExpnKind {
/// e.g., #[derive(...)] <item>
MacroAttribute(Symbol),
@ -724,7 +724,7 @@ impl MacroKind {
}
/// The kind of compiler desugaring.
#[derive(Clone, Copy, Hash, Debug, PartialEq, Eq, RustcEncodable, RustcDecodable)]
#[derive(Clone, Copy, PartialEq, Debug, RustcEncodable, RustcDecodable)]
pub enum DesugaringKind {
/// We desugar `if c { i } else { e }` to `match $ExprKind::Use(c) { true => i, _ => e }`.
/// However, we do not want to blame `c` for unreachability but rather say that `i`