internal: Make exclude characters for typing assists configurable, default to None

Signed-off-by: Tarek <tareknaser360@gmail.com>

Author: tareknaser

crates/ide/src/lib.rs

@@ -411,6 +411,7 @@ impl Analysis {
         position: FilePosition,
         char_typed: char,
         autoclose: bool,
+        chars_to_exclude: Option<String>,
     ) -> Cancellable<Option<SourceChange>> {
         // Fast path to not even parse the file.
         if !typing::TRIGGER_CHARS.contains(char_typed) {
@@ -419,6 +420,11 @@ impl Analysis {
         if char_typed == '<' && !autoclose {
             return Ok(None);
         }
+        if let Some(chars_to_exclude) = chars_to_exclude {
+            if chars_to_exclude.contains(char_typed) {
+                return Ok(None);
+            }
+        }
 
         self.with_db(|db| typing::on_char_typed(db, position, char_typed))
     }

crates/rust-analyzer/src/config.rs

@@ -310,6 +310,8 @@ config_data! {
 
         /// Whether to insert closing angle brackets when typing an opening angle bracket of a generic argument list.
         typing_autoClosingAngleBrackets_enable: bool = false,
+        /// Specify the characters to exclude from triggering typing assists. The default trigger characters are `.`, `=`, `<`, `>`, `{`, and `(`. Setting this to a string will disable typing assists for the specified characters.
+        typing_excludeChars: Option<String> = None,
 
 
         /// Enables automatic discovery of projects using [`DiscoverWorkspaceConfig::command`].
@@ -2160,6 +2162,10 @@ impl Config {
         *self.typing_autoClosingAngleBrackets_enable()
     }
 
+    pub fn typing_exclude_chars(&self) -> Option<String> {
+        self.typing_excludeChars().clone()
+    }
+
     // VSCode is our reference implementation, so we allow ourselves to work around issues by
     // special casing certain versions
     pub fn visual_studio_code_version(&self) -> Option<&Version> {

crates/rust-analyzer/src/handlers/request.rs

@@ -459,9 +459,14 @@ pub(crate) fn handle_on_type_formatting(
     if char_typed == '>' {
         return Ok(None);
     }
+    let chars_to_exclude = snap.config.typing_exclude_chars();
 
-    let edit =
-        snap.analysis.on_char_typed(position, char_typed, snap.config.typing_autoclose_angle())?;
+    let edit = snap.analysis.on_char_typed(
+        position,
+        char_typed,
+        snap.config.typing_autoclose_angle(),
+        chars_to_exclude,
+    )?;
     let edit = match edit {
         Some(it) => it,
         None => return Ok(None),

docs/user/generated_config.adoc

@@ -997,6 +997,11 @@ Show documentation.
 --
 Whether to insert closing angle brackets when typing an opening angle bracket of a generic argument list.
 --
+[[rust-analyzer.typing.excludeChars]]rust-analyzer.typing.excludeChars (default: `null`)::
++
+--
+Specify the characters to exclude from triggering typing assists. The default trigger characters are `.`, `=`, `<`, `>`, `{`, and `(`. Setting this to a string will disable typing assists for the specified characters.
+--
 [[rust-analyzer.workspace.discoverConfig]]rust-analyzer.workspace.discoverConfig (default: `null`)::
 +
 --

editors/code/package.json

@@ -2612,6 +2612,19 @@
                     }
                 }
             },
+            {
+                "title": "typing",
+                "properties": {
+                    "rust-analyzer.typing.excludeChars": {
+                        "markdownDescription": "Specify the characters to exclude from triggering typing assists. The default trigger characters are `.`, `=`, `<`, `>`, `{`, and `(`. Setting this to a string will disable typing assists for the specified characters.",
+                        "default": null,
+                        "type": [
+                            "null",
+                            "string"
+                        ]
+                    }
+                }
+            },
             {
                 "title": "workspace",
                 "properties": {