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Add impl From for enum variant assist

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Basically adds a From impl for tuple enum variants with one field. Added
to cover the fairly common case of implementing your own Error that can
be created from another one, although other use cases exist.
This commit is contained in:
Matthew Hall 2020-04-01 22:26:41 +01:00
parent 1c2d4135db
commit 1fee60181f
4 changed files with 255 additions and 2 deletions
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3
crates/ra_syntax/src/ast/make.rs
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@ -22,7 +22,8 @@ pub fn path_unqualified(segment: ast::PathSegment) -> ast::Path {
pub fn path_qualified(qual: ast::Path, segment: ast::PathSegment) -> ast::Path {
path_from_text(&format!("{}::{}", qual, segment))
}
fn path_from_text(text: &str) -> ast::Path {
pub fn path_from_text(text: &str) -> ast::Path {
ast_from_text(text)
}