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replace_qualified_name_with_use insert qualified import paths

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This commit is contained in:
Lukas Wirth 2021-07-03 23:42:59 +02:00
parent e73328f22a
commit e41b5348b8
3 changed files with 76 additions and 438 deletions
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504
crates/ide_assists/src/handlers/replace_qualified_name_with_use.rs
View File

@ -1,4 +1,8 @@
use ide_db::helpers::insert_use::{insert_use, ImportScope};
use hir::AsAssocItem;
use ide_db::helpers::{
insert_use::{insert_use, ImportScope},
mod_path_to_ast,
};
use syntax::{ast, match_ast, ted, AstNode, SyntaxNode};
use crate::{AssistContext, AssistId, AssistKind, Assists};
@ -8,12 +12,14 @@
// Adds a use statement for a given fully-qualified name.
//
// ```
// # mod std { pub mod collections { pub struct HashMap<T, U>(T, U); } }
// fn process(map: std::collections::$0HashMap<String, String>) {}
// ```
// ->
// ```
// use std::collections::HashMap;
//
// # mod std { pub mod collections { pub struct HashMap<T, U>(T, U); } }
// fn process(map: HashMap<String, String>) {}
// ```
pub(crate) fn replace_qualified_name_with_use(
@ -22,16 +28,30 @@ pub(crate) fn replace_qualified_name_with_use(
) -> Option<()> {
let path: ast::Path = ctx.find_node_at_offset()?;
// We don't want to mess with use statements
if path.syntax().ancestors().find_map(ast::Use::cast).is_some() {
if path.syntax().ancestors().find_map(ast::UseTree::cast).is_some() {
cov_mark::hit!(not_applicable_in_use);
return None;
}
if path.qualifier().is_none() {
cov_mark::hit!(dont_import_trivial_paths);
return None;
}
let res = ctx.sema.resolve_path(&path)?;
let def: hir::ItemInNs = match res {
hir::PathResolution::Def(def) if def.as_assoc_item(ctx.sema.db).is_none() => def.into(),
hir::PathResolution::Macro(mac) => mac.into(),
_ => return None,
};
let target = path.syntax().text_range();
let scope = ImportScope::find_insert_use_container_with_macros(path.syntax(), &ctx.sema)?;
let mod_path = ctx.sema.scope(path.syntax()).module()?.find_use_path_prefixed(
ctx.sema.db,
def,
ctx.config.insert_use.prefix_kind,
)?;
acc.add(
AssistId("replace_qualified_name_with_use", AssistKind::RefactorRewrite),
"Replace qualified path with use",
@ -44,6 +64,7 @@ pub(crate) fn replace_qualified_name_with_use(
ImportScope::Module(it) => ImportScope::Module(builder.make_mut(it)),
ImportScope::Block(it) => ImportScope::Block(builder.make_mut(it)),
};
let path = mod_path_to_ast(&mod_path);
shorten_paths(scope.as_syntax_node(), &path.clone_for_update());
insert_use(&scope, path, &ctx.config.insert_use);
},
@ -59,6 +80,7 @@ fn shorten_paths(node: &SyntaxNode, path: &ast::Path) {
// import into the use tree.
ast::Use(_it) => continue,
// Don't descend into submodules, they don't have the same `use` items in scope.
// FIXME: This isn't true due to `super::*` imports?
ast::Module(_it) => continue,
ast::Path(p) => if maybe_replace_path(p.clone(), path.clone()).is_none() {
shorten_paths(p.syntax(), path);
@ -70,7 +92,7 @@ fn shorten_paths(node: &SyntaxNode, path: &ast::Path) {
}
fn maybe_replace_path(path: ast::Path, target: ast::Path) -> Option<()> {
if !path_eq(path.clone(), target) {
if !path_eq_no_generics(path.clone(), target) {
return None;
}
@ -85,12 +107,20 @@ fn maybe_replace_path(path: ast::Path, target: ast::Path) -> Option<()> {
Some(())
}
fn path_eq(lhs: ast::Path, rhs: ast::Path) -> bool {
fn path_eq_no_generics(lhs: ast::Path, rhs: ast::Path) -> bool {
let mut lhs_curr = lhs;
let mut rhs_curr = rhs;
loop {
match (lhs_curr.segment(), rhs_curr.segment()) {
(Some(lhs), Some(rhs)) if lhs.syntax().text() == rhs.syntax().text() => (),
match lhs_curr.segment().zip(rhs_curr.segment()) {
Some((lhs, rhs))
if lhs.coloncolon_token().is_some() == rhs.coloncolon_token().is_some()
&& lhs
.name_ref()
.zip(rhs.name_ref())
.map_or(false, |(lhs, rhs)| lhs.text() == rhs.text()) =>
{
()
}
_ => return false,
}
@ -115,12 +145,16 @@ mod tests {
fn test_replace_already_imported() {
check_assist(
replace_qualified_name_with_use,
r"use std::fs;
r"
mod std { pub mod fs { pub struct Path; } }
use std::fs;
fn main() {
std::f$0s::Path
}",
r"use std::fs;
r"
mod std { pub mod fs { pub struct Path; } }
use std::fs;
fn main() {
fs::Path
@ -133,387 +167,45 @@ fn test_replace_add_use_no_anchor() {
check_assist(
replace_qualified_name_with_use,
r"
std::fmt::Debug$0
mod std { pub mod fs { pub struct Path; } }
std::fs::Path$0
",
r"
use std::fmt::Debug;
use std::fs::Path;
Debug
mod std { pub mod fs { pub struct Path; } }
Path
",
);
}
#[test]
fn test_replace_add_use_no_anchor_with_item_below() {
fn test_replace_add_use_no_anchor_middle_segment() {
check_assist(
replace_qualified_name_with_use,
r"
std::fmt::Debug$0
fn main() {
}
mod std { pub mod fs { pub struct Path; } }
std::fs$0::Path
",
r"
use std::fmt::Debug;
use std::fs;
Debug
fn main() {
}
mod std { pub mod fs { pub struct Path; } }
fs::Path
",
);
}
#[test]
fn test_replace_add_use_no_anchor_with_item_above() {
check_assist(
replace_qualified_name_with_use,
r"
fn main() {
}
std::fmt::Debug$0
",
r"
use std::fmt::Debug;
fn main() {
}
Debug
",
);
}
#[test]
fn test_replace_add_use_no_anchor_2seg() {
check_assist(
replace_qualified_name_with_use,
r"
std::fmt$0::Debug
",
r"
use std::fmt;
fmt::Debug
",
);
}
#[test]
fn test_replace_add_use() {
check_assist(
replace_qualified_name_with_use,
r"
use stdx;
impl std::fmt::Debug$0 for Foo {
}
",
r"
use std::fmt::Debug;
use stdx;
impl Debug for Foo {
}
",
);
}
#[test]
fn test_replace_file_use_other_anchor() {
check_assist(
replace_qualified_name_with_use,
r"
impl std::fmt::Debug$0 for Foo {
}
",
r"
use std::fmt::Debug;
impl Debug for Foo {
}
",
);
}
#[test]
fn test_replace_add_use_other_anchor_indent() {
check_assist(
replace_qualified_name_with_use,
r"
impl std::fmt::Debug$0 for Foo {
}
",
r"
use std::fmt::Debug;
impl Debug for Foo {
}
",
);
}
#[test]
fn test_replace_split_different() {
check_assist(
replace_qualified_name_with_use,
r"
use std::fmt;
impl std::io$0 for Foo {
}
",
r"
use std::{fmt, io};
impl io for Foo {
}
",
);
}
#[test]
fn test_replace_split_self_for_use() {
check_assist(
replace_qualified_name_with_use,
r"
use std::fmt;
impl std::fmt::Debug$0 for Foo {
}
",
r"
use std::fmt::{self, Debug};
impl Debug for Foo {
}
",
);
}
#[test]
fn test_replace_split_self_for_target() {
check_assist(
replace_qualified_name_with_use,
r"
use std::fmt::Debug;
impl std::fmt$0 for Foo {
}
",
r"
use std::fmt::{self, Debug};
impl fmt for Foo {
}
",
);
}
#[test]
fn test_replace_add_to_nested_self_nested() {
check_assist(
replace_qualified_name_with_use,
r"
use std::fmt::{Debug, nested::{Display}};
impl std::fmt::nested$0 for Foo {
}
",
r"
use std::fmt::{Debug, nested::{self, Display}};
impl nested for Foo {
}
",
);
}
#[test]
fn test_replace_add_to_nested_self_already_included() {
check_assist(
replace_qualified_name_with_use,
r"
use std::fmt::{Debug, nested::{self, Display}};
impl std::fmt::nested$0 for Foo {
}
",
r"
use std::fmt::{Debug, nested::{self, Display}};
impl nested for Foo {
}
",
);
}
#[test]
fn test_replace_add_to_nested_nested() {
check_assist(
replace_qualified_name_with_use,
r"
use std::fmt::{Debug, nested::{Display}};
impl std::fmt::nested::Debug$0 for Foo {
}
",
r"
use std::fmt::{Debug, nested::{Debug, Display}};
impl Debug for Foo {
}
",
);
}
#[test]
fn test_replace_split_common_target_longer() {
check_assist(
replace_qualified_name_with_use,
r"
use std::fmt::Debug;
impl std::fmt::nested::Display$0 for Foo {
}
",
r"
use std::fmt::{Debug, nested::Display};
impl Display for Foo {
}
",
);
}
#[test]
fn test_replace_split_common_use_longer() {
check_assist(
replace_qualified_name_with_use,
r"
use std::fmt::nested::Debug;
impl std::fmt::Display$0 for Foo {
}
",
r"
use std::fmt::{Display, nested::Debug};
impl Display for Foo {
}
",
);
}
#[test]
fn test_replace_use_nested_import() {
check_assist(
replace_qualified_name_with_use,
r"
use crate::{
ty::{Substs, Ty},
AssocItem,
};
fn foo() { crate::ty::lower$0::trait_env() }
",
r"
use crate::{AssocItem, ty::{Substs, Ty, lower}};
fn foo() { lower::trait_env() }
",
);
}
#[test]
fn test_replace_alias() {
check_assist(
replace_qualified_name_with_use,
r"
use std::fmt as foo;
impl foo::Debug$0 for Foo {
}
",
r"
use std::fmt as foo;
use foo::Debug;
impl Debug for Foo {
}
",
);
}
#[test]
fn dont_import_trivial_paths() {
cov_mark::check!(dont_import_trivial_paths);
check_assist_not_applicable(
replace_qualified_name_with_use,
r"
impl foo$0 for Foo {
}
",
);
check_assist_not_applicable(replace_qualified_name_with_use, r"impl foo$0 for () {}");
}
#[test]
fn test_replace_not_applicable_in_use() {
check_assist_not_applicable(
replace_qualified_name_with_use,
r"
use std::fmt$0;
",
);
}
#[test]
fn test_replace_add_use_no_anchor_in_mod_mod() {
check_assist(
replace_qualified_name_with_use,
r"
mod foo {
mod bar {
std::fmt::Debug$0
}
}
",
r"
mod foo {
mod bar {
use std::fmt::Debug;
Debug
}
}
",
);
}
#[test]
fn inserts_imports_after_inner_attributes() {
check_assist(
replace_qualified_name_with_use,
r"
#![allow(dead_code)]
fn main() {
std::fmt::Debug$0
}
",
r"
#![allow(dead_code)]
use std::fmt::Debug;
fn main() {
Debug
}
",
);
cov_mark::check!(not_applicable_in_use);
check_assist_not_applicable(replace_qualified_name_with_use, r"use std::fmt$0;");
}
#[test]
@ -521,6 +213,7 @@ fn replaces_all_affected_paths() {
check_assist(
replace_qualified_name_with_use,
r"
mod std { pub mod fmt { pub trait Debug {} } }
fn main() {
std::fmt::Debug$0;
let x: std::fmt::Debug = std::fmt::Debug;
@ -529,6 +222,7 @@ fn main() {
r"
use std::fmt::Debug;
mod std { pub mod fmt { pub trait Debug {} } }
fn main() {
Debug;
let x: Debug = Debug;
@ -537,50 +231,12 @@ fn main() {
);
}
#[test]
fn replaces_all_affected_paths_mod() {
check_assist(
replace_qualified_name_with_use,
r"
mod m {
fn f() {
std::fmt::Debug$0;
let x: std::fmt::Debug = std::fmt::Debug;
}
fn g() {
std::fmt::Debug;
}
}
fn f() {
std::fmt::Debug;
}
",
r"
mod m {
use std::fmt::Debug;
fn f() {
Debug;
let x: Debug = Debug;
}
fn g() {
Debug;
}
}
fn f() {
std::fmt::Debug;
}
",
);
}
#[test]
fn does_not_replace_in_submodules() {
check_assist(
replace_qualified_name_with_use,
r"
mod std { pub mod fmt { pub trait Debug {} } }
fn main() {
std::fmt::Debug$0;
}
@ -594,6 +250,7 @@ fn f() {
r"
use std::fmt::Debug;
mod std { pub mod fmt { pub trait Debug {} } }
fn main() {
Debug;
}
@ -612,6 +269,7 @@ fn does_not_replace_in_use() {
check_assist(
replace_qualified_name_with_use,
r"
mod std { pub mod fmt { pub trait Display {} } }
use std::fmt::Display;
fn main() {
@ -619,6 +277,7 @@ fn main() {
}
",
r"
mod std { pub mod fmt { pub trait Display {} } }
use std::fmt::{self, Display};
fn main() {
@ -629,42 +288,19 @@ fn main() {
}
#[test]
fn does_not_replace_pub_use() {
check_assist(
fn does_not_replace_assoc_item_path() {
check_assist_not_applicable(
replace_qualified_name_with_use,
r"
pub use std::fmt;
impl std::io$0 for Foo {
pub struct Foo;
impl Foo {
pub fn foo() {}
}
",
r"
pub use std::fmt;
use std::io;
impl io for Foo {
fn main() {
Foo::foo$0();
}
",
);
}
#[test]
fn does_not_replace_pub_crate_use() {
check_assist(
replace_qualified_name_with_use,
r"
pub(crate) use std::fmt;
impl std::io$0 for Foo {
}
",
r"
pub(crate) use std::fmt;
use std::io;
impl io for Foo {
}
",
",
);
}
}

2
crates/ide_assists/src/tests/generated.rs
View File

@ -1479,11 +1479,13 @@ fn doctest_replace_qualified_name_with_use() {
check_doc_test(
"replace_qualified_name_with_use",
r#####"
mod std { pub mod collections { pub struct HashMap<T, U>(T, U); } }
fn process(map: std::collections::$0HashMap<String, String>) {}
"#####,
r#####"
use std::collections::HashMap;
mod std { pub mod collections { pub struct HashMap<T, U>(T, U); } }
fn process(map: HashMap<String, String>) {}
"#####,
)

8
crates/ide_db/src/helpers/insert_use.rs
View File

@ -214,7 +214,7 @@ pub fn insert_use<'a>(scope: &ImportScope, path: ast::Path, cfg: &InsertUseConfi
// either we weren't allowed to merge or there is no import that fits the merge conditions
// so look for the place we have to insert to
insert_use_(scope, path, cfg.group, use_item);
insert_use_(scope, &path, cfg.group, use_item);
}
#[derive(Eq, PartialEq, PartialOrd, Ord)]
@ -253,12 +253,12 @@ fn new(path: &ast::Path) -> ImportGroup {
fn insert_use_(
scope: &ImportScope,
insert_path: ast::Path,
insert_path: &ast::Path,
group_imports: bool,
use_item: ast::Use,
) {
let scope_syntax = scope.as_syntax_node();
let group = ImportGroup::new(&insert_path);
let group = ImportGroup::new(insert_path);
let path_node_iter = scope_syntax
.children()
.filter_map(|node| ast::Use::cast(node.clone()).zip(Some(node)))
@ -294,7 +294,7 @@ fn insert_use_(
let post_insert: Option<(_, _, SyntaxNode)> = group_iter
.inspect(|(.., node)| last = Some(node.clone()))
.find(|&(ref path, has_tl, _)| {
use_tree_path_cmp(&insert_path, false, path, has_tl) != Ordering::Greater
use_tree_path_cmp(insert_path, false, path, has_tl) != Ordering::Greater
});
if let Some((.., node)) = post_insert {