bendns' repos / rust-analyzer
Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/ide-assists/src/handlers/generate_derive.rs')
-rw-r--r--crates/ide-assists/src/handlers/generate_derive.rs132
1 files changed, 0 insertions, 132 deletions
diff --git a/crates/ide-assists/src/handlers/generate_derive.rs b/crates/ide-assists/src/handlers/generate_derive.rs
deleted file mode 100644
index 28483f795e..0000000000
--- a/crates/ide-assists/src/handlers/generate_derive.rs
+++ /dev/null
@@ -1,132 +0,0 @@
-use syntax::{
- ast::{self, AstNode, HasAttrs},
- SyntaxKind::{COMMENT, WHITESPACE},
- TextSize,
-};
-
-use crate::{AssistContext, AssistId, AssistKind, Assists};
-
-// Assist: generate_derive
-//
-// Adds a new `#[derive()]` clause to a struct or enum.
-//
-// ```
-// struct Point {
-// x: u32,
-// y: u32,$0
-// }
-// ```
-// ->
-// ```
-// #[derive($0)]
-// struct Point {
-// x: u32,
-// y: u32,
-// }
-// ```
-pub(crate) fn generate_derive(acc: &mut Assists, ctx: &AssistContext) -> Option<()> {
- let cap = ctx.config.snippet_cap?;
- let nominal = ctx.find_node_at_offset::<ast::Adt>()?;
- let node_start = derive_insertion_offset(&nominal)?;
- let target = nominal.syntax().text_range();
- acc.add(
- AssistId("generate_derive", AssistKind::Generate),
- "Add `#[derive]`",
- target,
- |builder| {
- let derive_attr = nominal
- .attrs()
- .filter_map(|x| x.as_simple_call())
- .filter(|(name, _arg)| name == "derive")
- .map(|(_name, arg)| arg)
- .next();
- match derive_attr {
- None => {
- builder.insert_snippet(cap, node_start, "#[derive($0)]\n");
- }
- Some(tt) => {
- // Just move the cursor.
- builder.insert_snippet(
- cap,
- tt.syntax().text_range().end() - TextSize::of(')'),
- "$0",
- )
- }
- };
- },
- )
-}
-
-// Insert `derive` after doc comments.
-fn derive_insertion_offset(nominal: &ast::Adt) -> Option<TextSize> {
- let non_ws_child = nominal
- .syntax()
- .children_with_tokens()
- .find(|it| it.kind() != COMMENT && it.kind() != WHITESPACE)?;
- Some(non_ws_child.text_range().start())
-}
-
-#[cfg(test)]
-mod tests {
- use crate::tests::{check_assist, check_assist_target};
-
- use super::*;
-
- #[test]
- fn add_derive_new() {
- check_assist(
- generate_derive,
- "struct Foo { a: i32, $0}",
- "#[derive($0)]\nstruct Foo { a: i32, }",
- );
- check_assist(
- generate_derive,
- "struct Foo { $0 a: i32, }",
- "#[derive($0)]\nstruct Foo { a: i32, }",
- );
- }
-
- #[test]
- fn add_derive_existing() {
- check_assist(
- generate_derive,
- "#[derive(Clone)]\nstruct Foo { a: i32$0, }",
- "#[derive(Clone$0)]\nstruct Foo { a: i32, }",
- );
- }
-
- #[test]
- fn add_derive_new_with_doc_comment() {
- check_assist(
- generate_derive,
- "
-/// `Foo` is a pretty important struct.
-/// It does stuff.
-struct Foo { a: i32$0, }
- ",
- "
-/// `Foo` is a pretty important struct.
-/// It does stuff.
-#[derive($0)]
-struct Foo { a: i32, }
- ",
- );
- }
-
- #[test]
- fn add_derive_target() {
- check_assist_target(
- generate_derive,
- "
-struct SomeThingIrrelevant;
-/// `Foo` is a pretty important struct.
-/// It does stuff.
-struct Foo { a: i32$0, }
-struct EvenMoreIrrelevant;
- ",
- "/// `Foo` is a pretty important struct.
-/// It does stuff.
-struct Foo { a: i32, }",
- );
- }
-}