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replace AST visitors with macro

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This commit is contained in:
Ekaterina Babshukova 2019-10-05 17:03:03 +03:00
parent dbf869b4d2
commit 2fc2290173
10 changed files with 334 additions and 297 deletions
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77
crates/ra_ide_api/src/hover.rs
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@ -3,12 +3,9 @@
use hir::{Adt, HasSource, HirDisplay};
use ra_db::SourceDatabase;
use ra_syntax::{
algo::{
ancestors_at_offset, find_covering_element, find_node_at_offset,
visit::{visitor, Visitor},
},
algo::{ancestors_at_offset, find_covering_element, find_node_at_offset},
ast::{self, DocCommentsOwner},
AstNode,
match_ast, AstNode,
};
use crate::{
@ -178,37 +175,45 @@ pub(crate) fn hover(db: &RootDatabase, position: FilePosition) -> Option<RangeIn
}
} else if let Some(name) = find_node_at_offset::<ast::Name>(file.syntax(), position.offset) {
if let Some(parent) = name.syntax().parent() {
let text = visitor()
.visit(|node: ast::StructDef| {
hover_text(node.doc_comment_text(), node.short_label())
})
.visit(|node: ast::EnumDef| hover_text(node.doc_comment_text(), node.short_label()))
.visit(|node: ast::EnumVariant| {
hover_text(node.doc_comment_text(), node.short_label())
})
.visit(|node: ast::FnDef| hover_text(node.doc_comment_text(), node.short_label()))
.visit(|node: ast::TypeAliasDef| {
hover_text(node.doc_comment_text(), node.short_label())
})
.visit(|node: ast::ConstDef| {
hover_text(node.doc_comment_text(), node.short_label())
})
.visit(|node: ast::StaticDef| {
hover_text(node.doc_comment_text(), node.short_label())
})
.visit(|node: ast::TraitDef| {
hover_text(node.doc_comment_text(), node.short_label())
})
.visit(|node: ast::RecordFieldDef| {
hover_text(node.doc_comment_text(), node.short_label())
})
.visit(|node: ast::Module| hover_text(node.doc_comment_text(), node.short_label()))
.visit(|node: ast::MacroCall| hover_text(node.doc_comment_text(), None))
.accept(&parent);
if let Some(text) = text {
res.extend(text);
}
let text = match_ast! {
match parent {
ast::StructDef(it) => {
hover_text(it.doc_comment_text(), it.short_label())
},
ast::EnumDef(it) => {
hover_text(it.doc_comment_text(), it.short_label())
},
ast::EnumVariant(it) => {
hover_text(it.doc_comment_text(), it.short_label())
},
ast::FnDef(it) => {
hover_text(it.doc_comment_text(), it.short_label())
},
ast::TypeAliasDef(it) => {
hover_text(it.doc_comment_text(), it.short_label())
},
ast::ConstDef(it) => {
hover_text(it.doc_comment_text(), it.short_label())
},
ast::StaticDef(it) => {
hover_text(it.doc_comment_text(), it.short_label())
},
ast::TraitDef(it) => {
hover_text(it.doc_comment_text(), it.short_label())
},
ast::RecordFieldDef(it) => {
hover_text(it.doc_comment_text(), it.short_label())
},
ast::Module(it) => {
hover_text(it.doc_comment_text(), it.short_label())
},
ast::MacroCall(it) => {
hover_text(it.doc_comment_text(), None)
},
_ => None,
}
};
res.extend(text);
}
if !res.is_empty() && range.is_none() {