Name assist handlers

crates/ra_assists/src/assist_ctx.rs

@@ -19,6 +19,8 @@ pub(crate) enum Assist {
     Resolved { assist: ResolvedAssist },
 }
 
+pub(crate) type AssistHandler = fn(AssistCtx) -> Option<Assist>;
+
 /// `AssistCtx` allows to apply an assist or check if it could be applied.
 ///
 /// Assists use a somewhat over-engineered approach, given the current needs. The

crates/ra_assists/src/handlers/early_return.rs

@@ -10,7 +10,7 @@ use ra_syntax::{
 
 use crate::{
     assist_ctx::{Assist, AssistCtx},
-    assists::invert_if::invert_boolean_expression,
+    handlers::invert_if::invert_boolean_expression,
     AssistId,
 };
 

crates/ra_assists/src/lib.rs

@@ -19,8 +19,8 @@ use ra_ide_db::RootDatabase;
 use ra_syntax::{TextRange, TextUnit};
 use ra_text_edit::TextEdit;
 
-pub(crate) use crate::assist_ctx::{Assist, AssistCtx};
-pub use crate::assists::add_import::auto_import_text_edit;
+pub(crate) use crate::assist_ctx::{Assist, AssistCtx, AssistHandler};
+pub use crate::handlers::add_import::auto_import_text_edit;
 
 /// Unique identifier of the assist, should not be shown to the user
 /// directly.
@@ -72,7 +72,7 @@ impl ResolvedAssist {
 /// returned, without actual edits.
 pub fn unresolved_assists(db: &RootDatabase, range: FileRange) -> Vec<AssistLabel> {
     let ctx = AssistCtx::new(db, range, false);
-    assists::all()
+    handlers::all()
         .iter()
         .filter_map(|f| f(ctx.clone()))
         .map(|a| match a {
@@ -88,7 +88,7 @@ pub fn unresolved_assists(db: &RootDatabase, range: FileRange) -> Vec<AssistLabe
 /// computed.
 pub fn resolved_assists(db: &RootDatabase, range: FileRange) -> Vec<ResolvedAssist> {
     let ctx = AssistCtx::new(db, range, true);
-    let mut a = assists::all()
+    let mut a = handlers::all()
         .iter()
         .filter_map(|f| f(ctx.clone()))
         .map(|a| match a {
@@ -109,8 +109,8 @@ fn sort_assists(assists: &mut [ResolvedAssist]) {
     });
 }
 
-mod assists {
-    use crate::{Assist, AssistCtx};
+mod handlers {
+    use crate::AssistHandler;
 
     mod add_derive;
     mod add_explicit_type;
@@ -138,7 +138,7 @@ mod assists {
     mod move_bounds;
     mod early_return;
 
-    pub(crate) fn all() -> &'static [fn(AssistCtx) -> Option<Assist>] {
+    pub(crate) fn all() -> &'static [AssistHandler] {
         &[
             add_derive::add_derive,
             add_explicit_type::add_explicit_type,
@@ -183,7 +183,7 @@ mod helpers {
     use ra_syntax::TextRange;
     use test_utils::{add_cursor, assert_eq_text, extract_offset, extract_range};
 
-    use crate::{Assist, AssistCtx};
+    use crate::{Assist, AssistCtx, AssistHandler};
 
     pub(crate) fn with_single_file(text: &str) -> (RootDatabase, FileId) {
         let (mut db, file_id) = RootDatabase::with_single_file(text);
@@ -194,7 +194,7 @@ mod helpers {
         (db, file_id)
     }
 
-    pub(crate) fn check_assist(assist: fn(AssistCtx) -> Option<Assist>, before: &str, after: &str) {
+    pub(crate) fn check_assist(assist: AssistHandler, before: &str, after: &str) {
         let (before_cursor_pos, before) = extract_offset(before);
         let (db, file_id) = with_single_file(&before);
         let frange =
@@ -218,11 +218,7 @@ mod helpers {
         assert_eq_text!(after, &actual);
     }
 
-    pub(crate) fn check_assist_range(
-        assist: fn(AssistCtx) -> Option<Assist>,
-        before: &str,
-        after: &str,
-    ) {
+    pub(crate) fn check_assist_range(assist: AssistHandler, before: &str, after: &str) {
         let (range, before) = extract_range(before);
         let (db, file_id) = with_single_file(&before);
         let frange = FileRange { file_id, range };
@@ -240,11 +236,7 @@ mod helpers {
         assert_eq_text!(after, &actual);
     }
 
-    pub(crate) fn check_assist_target(
-        assist: fn(AssistCtx) -> Option<Assist>,
-        before: &str,
-        target: &str,
-    ) {
+    pub(crate) fn check_assist_target(assist: AssistHandler, before: &str, target: &str) {
         let (before_cursor_pos, before) = extract_offset(before);
         let (db, file_id) = with_single_file(&before);
         let frange =
@@ -260,11 +252,7 @@ mod helpers {
         assert_eq_text!(&before[range.start().to_usize()..range.end().to_usize()], target);
     }
 
-    pub(crate) fn check_assist_range_target(
-        assist: fn(AssistCtx) -> Option<Assist>,
-        before: &str,
-        target: &str,
-    ) {
+    pub(crate) fn check_assist_range_target(assist: AssistHandler, before: &str, target: &str) {
         let (range, before) = extract_range(before);
         let (db, file_id) = with_single_file(&before);
         let frange = FileRange { file_id, range };
@@ -279,10 +267,7 @@ mod helpers {
         assert_eq_text!(&before[range.start().to_usize()..range.end().to_usize()], target);
     }
 
-    pub(crate) fn check_assist_not_applicable(
-        assist: fn(AssistCtx) -> Option<Assist>,
-        before: &str,
-    ) {
+    pub(crate) fn check_assist_not_applicable(assist: AssistHandler, before: &str) {
         let (before_cursor_pos, before) = extract_offset(before);
         let (db, file_id) = with_single_file(&before);
         let frange =
@@ -291,10 +276,7 @@ mod helpers {
         assert!(assist.is_none());
     }
 
-    pub(crate) fn check_assist_range_not_applicable(
-        assist: fn(AssistCtx) -> Option<Assist>,
-        before: &str,
-    ) {
+    pub(crate) fn check_assist_range_not_applicable(assist: AssistHandler, before: &str) {
         let (range, before) = extract_range(before);
         let (db, file_id) = with_single_file(&before);
         let frange = FileRange { file_id, range };

xtask/src/codegen.rs

@@ -25,7 +25,7 @@ const ERR_INLINE_TESTS_DIR: &str = "crates/ra_syntax/test_data/parser/inline/err
 pub const SYNTAX_KINDS: &str = "crates/ra_parser/src/syntax_kind/generated.rs";
 pub const AST: &str = "crates/ra_syntax/src/ast/generated.rs";
 
-const ASSISTS_DIR: &str = "crates/ra_assists/src/assists";
+const ASSISTS_DIR: &str = "crates/ra_assists/src/handlers";
 const ASSISTS_TESTS: &str = "crates/ra_assists/src/doc_tests/generated.rs";
 const ASSISTS_DOCS: &str = "docs/user/assists.md";
 

xtask/tests/tidy-tests/docs.rs

@@ -6,7 +6,7 @@ use xtask::project_root;
 fn is_exclude_dir(p: &Path) -> bool {
     // Test hopefully don't really need comments, and for assists we already
     // have special comments which are source of doc tests and user docs.
-    let exclude_dirs = ["tests", "test_data", "assists"];
+    let exclude_dirs = ["tests", "test_data", "handlers"];
     let mut cur_path = p;
     while let Some(path) = cur_path.parent() {
         if exclude_dirs.iter().any(|dir| path.ends_with(dir)) {