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Merge #5753

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5753: Remove Hygiene from completion
 r=matklad a=matklad

bors r+
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Co-authored-by: Aleksey Kladov <aleksey.kladov@gmail.com>
This commit is contained in:
bors[bot] 2020-08-13 20:42:36 +00:00 committed by GitHub
commit 9930ef2536
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 64 additions and 58 deletions
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29
crates/ide/src/completion/complete_keyword.rs
View File

@ -10,30 +10,21 @@
pub(super) fn complete_use_tree_keyword(acc: &mut Completions, ctx: &CompletionContext) {
// complete keyword "crate" in use stmt
let source_range = ctx.source_range();
match (ctx.use_item_syntax.as_ref(), ctx.path_prefix.as_ref()) {
(Some(_), None) => {
if ctx.use_item_syntax.is_some() {
if ctx.path_qual.is_none() {
CompletionItem::new(CompletionKind::Keyword, source_range, "crate::")
.kind(CompletionItemKind::Keyword)
.insert_text("crate::")
.add_to(acc);
CompletionItem::new(CompletionKind::Keyword, source_range, "self")
.kind(CompletionItemKind::Keyword)
.add_to(acc);
CompletionItem::new(CompletionKind::Keyword, source_range, "super::")
.kind(CompletionItemKind::Keyword)
.insert_text("super::")
.add_to(acc);
}
(Some(_), Some(_)) => {
CompletionItem::new(CompletionKind::Keyword, source_range, "self")
.kind(CompletionItemKind::Keyword)
.add_to(acc);
CompletionItem::new(CompletionKind::Keyword, source_range, "super::")
.kind(CompletionItemKind::Keyword)
.insert_text("super::")
.add_to(acc);
}
_ => {}
CompletionItem::new(CompletionKind::Keyword, source_range, "self")
.kind(CompletionItemKind::Keyword)
.add_to(acc);
CompletionItem::new(CompletionKind::Keyword, source_range, "super::")
.kind(CompletionItemKind::Keyword)
.insert_text("super::")
.add_to(acc);
}
// Suggest .await syntax for types that implement Future trait

4
crates/ide/src/completion/complete_qualified_path.rs
View File

@ -8,7 +8,7 @@
use crate::completion::{CompletionContext, Completions};
pub(super) fn complete_qualified_path(acc: &mut Completions, ctx: &CompletionContext) {
let path = match &ctx.path_prefix {
let path = match &ctx.path_qual {
Some(path) => path.clone(),
None => return,
};
@ -19,7 +19,7 @@ pub(super) fn complete_qualified_path(acc: &mut Completions, ctx: &CompletionCon
let context_module = ctx.scope.module();
let resolution = match ctx.scope.resolve_hir_path_qualifier(&path) {
let resolution = match ctx.sema.resolve_path(&path) {
Some(res) => res,
None => return,
};

89
crates/ide/src/completion/completion_context.rs
View File

@ -56,7 +56,7 @@ pub(crate) struct CompletionContext<'a> {
/// A single-indent path, like `foo`. `::foo` should not be considered a trivial path.
pub(super) is_trivial_path: bool,
/// If not a trivial path, the prefix (qualifier).
pub(super) path_prefix: Option<hir::Path>,
pub(super) path_qual: Option<ast::Path>,
pub(super) after_if: bool,
/// `true` if we are a statement or a last expr in the block.
pub(super) can_be_stmt: bool,
@ -137,7 +137,7 @@ pub(super) fn new(
is_param: false,
is_pat_binding_or_const: false,
is_trivial_path: false,
path_prefix: None,
path_qual: None,
after_if: false,
can_be_stmt: false,
is_expr: false,
@ -385,48 +385,54 @@ fn classify_name_ref(
self.is_path_type = path.syntax().parent().and_then(ast::PathType::cast).is_some();
self.has_type_args = segment.generic_arg_list().is_some();
let hygiene = hir::Hygiene::new(self.db, self.position.file_id.into());
if let Some(path) = hir::Path::from_src(path.clone(), &hygiene) {
if let Some(path_prefix) = path.qualifier() {
self.path_prefix = Some(path_prefix);
if let Some(path) = path_or_use_tree_qualifier(&path) {
self.path_qual = path
.segment()
.and_then(|it| {
find_node_with_range::<ast::PathSegment>(
original_file,
it.syntax().text_range(),
)
})
.map(|it| it.parent_path());
return;
}
if let Some(segment) = path.segment() {
if segment.coloncolon_token().is_some() {
return;
}
}
if path.qualifier().is_none() {
self.is_trivial_path = true;
self.is_trivial_path = true;
// Find either enclosing expr statement (thing with `;`) or a
// block. If block, check that we are the last expr.
self.can_be_stmt = name_ref
.syntax()
.ancestors()
.find_map(|node| {
if let Some(stmt) = ast::ExprStmt::cast(node.clone()) {
return Some(
stmt.syntax().text_range() == name_ref.syntax().text_range(),
);
}
if let Some(block) = ast::BlockExpr::cast(node) {
return Some(
block.expr().map(|e| e.syntax().text_range())
== Some(name_ref.syntax().text_range()),
);
}
None
})
.unwrap_or(false);
self.is_expr = path.syntax().parent().and_then(ast::PathExpr::cast).is_some();
// Find either enclosing expr statement (thing with `;`) or a
// block. If block, check that we are the last expr.
self.can_be_stmt = name_ref
.syntax()
.ancestors()
.find_map(|node| {
if let Some(stmt) = ast::ExprStmt::cast(node.clone()) {
return Some(stmt.syntax().text_range() == name_ref.syntax().text_range());
}
if let Some(block) = ast::BlockExpr::cast(node) {
return Some(
block.expr().map(|e| e.syntax().text_range())
== Some(name_ref.syntax().text_range()),
);
}
None
})
.unwrap_or(false);
self.is_expr = path.syntax().parent().and_then(ast::PathExpr::cast).is_some();
if let Some(off) = name_ref.syntax().text_range().start().checked_sub(2.into()) {
if let Some(if_expr) =
self.sema.find_node_at_offset_with_macros::<ast::IfExpr>(original_file, off)
if let Some(off) = name_ref.syntax().text_range().start().checked_sub(2.into()) {
if let Some(if_expr) =
self.sema.find_node_at_offset_with_macros::<ast::IfExpr>(original_file, off)
{
if if_expr.syntax().text_range().end() < name_ref.syntax().text_range().start()
{
if if_expr.syntax().text_range().end()
< name_ref.syntax().text_range().start()
{
self.after_if = true;
}
self.after_if = true;
}
}
}
@ -469,3 +475,12 @@ fn is_node<N: AstNode>(node: &SyntaxNode) -> bool {
Some(n) => n.syntax().text_range() == node.text_range(),
}
}
fn path_or_use_tree_qualifier(path: &ast::Path) -> Option<ast::Path> {
if let Some(qual) = path.qualifier() {
return Some(qual);
}
let use_tree_list = path.syntax().ancestors().find_map(ast::UseTreeList::cast)?;
let use_tree = use_tree_list.syntax().parent().and_then(ast::UseTree::cast)?;
use_tree.path()
}