[cm6] Improve symbol completion ranking (#12902)

GitOrigin-RevId: 8ccc87c2b86636bd37a3472d36873ade9a190209

services/web/frontend/js/features/source-editor/languages/latex/complete.ts

@@ -338,16 +338,6 @@ const commandCompletionSource = (context: CompletionContext) => {
 
   buildAllCompletions(completions, context)
 
-  // ensure that there's only one completion for each label
-  const uniqueCommandCompletions = Array.from(
-    new Map(
-      [
-        ...completions.commands,
-        ...customCommandCompletions(context, completions.commands),
-      ].map(completion => [completion.label, completion])
-    ).values()
-  )
-
   // Unknown commands
   const prefixMatcher = /^\\[^{\s]*$/
   const prefixMatch = matchBefore.text.match(prefixMatcher)
@@ -356,7 +346,8 @@ const commandCompletionSource = (context: CompletionContext) => {
       from: matchBefore.from,
       validFor: prefixMatcher,
       options: [
-        ...uniqueCommandCompletions,
+        ...completions.commands,
+        ...customCommandCompletions(context, completions.commands),
         ...customEnvironmentCompletions(context),
       ],
     }
@@ -365,7 +356,10 @@ const commandCompletionSource = (context: CompletionContext) => {
   // anything else (no validFor)
   return {
     from: matchBefore.to,
-    options: uniqueCommandCompletions,
+    options: [
+      ...completions.commands,
+      ...customCommandCompletions(context, completions.commands),
+    ],
   }
 }
 

services/web/frontend/js/features/source-editor/languages/latex/completions/doc-commands.ts

@@ -25,7 +25,7 @@ export function customCommandCompletions(
       output.push({
         type: 'cmd',
         label: item.label,
-        boost: item.count - 10,
+        boost: Math.max(0, item.count - 10),
         apply: applySnippet(item.snippet),
         extend: extendOverUnpairedClosingBrace,
       })

services/web/frontend/js/features/source-editor/languages/latex/completions/snippets.ts

@@ -12,7 +12,8 @@ export function buildSnippetCompletions(completions: Completions) {
       type: item.meta,
       label: item.caption,
       boost: item.score,
-      apply: applySnippet(item.snippet),
+      apply:
+        item.snippet === item.caption ? undefined : applySnippet(item.snippet),
       extend: extendOverUnpairedClosingBrace,
     })
   }

services/web/frontend/js/features/source-editor/languages/latex/index.ts

@@ -16,13 +16,14 @@ import { documentOutline } from './document-outline'
 import { LaTeXLanguage } from './latex-language'
 import { documentEnvironmentNames } from './document-environment-names'
 
-const completionSources = importOverleafModules('sourceEditorCompletionSources')
-  .map((item: any) => item.import.default)
-  .concat(
-    argumentCompletionSources,
-    inCommandCompletionSource,
-    explicitCommandCompletionSource
-  ) as CompletionSource[]
+const completionSources: CompletionSource[] = [
+  ...argumentCompletionSources,
+  inCommandCompletionSource,
+  explicitCommandCompletionSource,
+  ...importOverleafModules('sourceEditorCompletionSources').map(
+    (item: any) => item.import.default
+  ),
+]
 
 export const latex = () => {
   return new LanguageSupport(LaTeXLanguage, [