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Add a better text for hover and stop duplicating work done in approximatelly_resolve_symbol

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DJMcNab 2018-12-08 16:02:23 +00:00 • committed by Aleksey Kladov
parent 6d548d944f
commit f88e0700e6
7 changed files with 98 additions and 30 deletions
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55
crates/ra_editor/src/symbols.rs
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@ -50,6 +50,61 @@ impl FileSymbol {
})
.nth(0)
}
/// Get a description of this node.
///
/// e.g. `struct Name`, `enum Name`, `fn Name`
pub fn description(&self, file: &SourceFileNode) -> Option<String> {
// TODO: After type inference is done, add type information to improve the output
file.syntax()
.descendants()
.filter(|node| node.kind() == self.kind && node.range() == self.node_range)
.filter_map(|node: SyntaxNodeRef| {
// TODO: Refactor to be have less repetition
visitor()
.visit(|node: ast::FnDef| {
let mut string = "fn ".to_string();
node.name()?.syntax().text().push_to(&mut string);
Some(string)
})
.visit(|node: ast::StructDef| {
let mut string = "struct ".to_string();
node.name()?.syntax().text().push_to(&mut string);
Some(string)
})
.visit(|node: ast::EnumDef| {
let mut string = "enum ".to_string();
node.name()?.syntax().text().push_to(&mut string);
Some(string)
})
.visit(|node: ast::TraitDef| {
let mut string = "trait ".to_string();
node.name()?.syntax().text().push_to(&mut string);
Some(string)
})
.visit(|node: ast::Module| {
let mut string = "mod ".to_string();
node.name()?.syntax().text().push_to(&mut string);
Some(string)
})
.visit(|node: ast::TypeDef| {
let mut string = "type ".to_string();
node.name()?.syntax().text().push_to(&mut string);
Some(string)
})
.visit(|node: ast::ConstDef| {
let mut string = "const ".to_string();
node.name()?.syntax().text().push_to(&mut string);
Some(string)
})
.visit(|node: ast::StaticDef| {
let mut string = "static ".to_string();
node.name()?.syntax().text().push_to(&mut string);
Some(string)
})
.accept(node)?
})
.nth(0)
}
}
pub fn file_symbols(file: &SourceFileNode) -> Vec<FileSymbol> {