bjoernager/rust
bjoernager/rust
1
Fork 0
Code Activity

resolve: Introduce a separate NonMacroAttrKind for legacy derive helpers

Browse source
This commit is contained in:
Vadim Petrochenkov 2020-11-19 01:45:10 +03:00
parent e7ee4d66ce
commit 69894ce9ac
3 changed files with 21 additions and 20 deletions
Download patch file Download diff file Expand all files Collapse all files

11
compiler/rustc_hir/src/def.rs
View file

@ -39,6 +39,9 @@ pub enum NonMacroAttrKind {
Tool,
/// Single-segment custom attribute registered by a derive macro (`#[serde(default)]`).
DeriveHelper,
/// Single-segment custom attribute registered by a derive macro
/// but used before that derive macro was expanded (deprecated).
DeriveHelperCompat,
/// Single-segment custom attribute registered with `#[register_attr]`.
Registered,
}
@ -370,7 +373,9 @@ impl NonMacroAttrKind {
match self {
NonMacroAttrKind::Builtin => "built-in attribute",
NonMacroAttrKind::Tool => "tool attribute",
NonMacroAttrKind::DeriveHelper => "derive helper attribute",
NonMacroAttrKind::DeriveHelper | NonMacroAttrKind::DeriveHelperCompat => {
"derive helper attribute"
}
NonMacroAttrKind::Registered => "explicitly registered attribute",
}
}
@ -385,7 +390,9 @@ impl NonMacroAttrKind {
/// Users of some attributes cannot mark them as used, so they are considered always used.
pub fn is_used(self) -> bool {
match self {
NonMacroAttrKind::Tool | NonMacroAttrKind::DeriveHelper => true,
NonMacroAttrKind::Tool
| NonMacroAttrKind::DeriveHelper
| NonMacroAttrKind::DeriveHelperCompat => true,
NonMacroAttrKind::Builtin | NonMacroAttrKind::Registered => false,
}
}