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[clangd][vscode] Enable dot-to-arrow fixes in clangd completion.

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Summary:
The previous issue is that the item was filtered out by vscode, because
the prefix (which contains ".") are not matched against the filterText.

This patch works around it by adjusting the item filterText, inspired by
https://reviews.llvm.org/D75623.

Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75739
This commit is contained in:
Haojian Wu 2020-03-06 15:08:23 +01:00
parent 684d6fdee2
commit 6ba0a4ec3b
1 changed files with 15 additions and 4 deletions
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19
clang-tools-extra/clangd/clients/clangd-vscode/src/extension.ts
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@ -65,6 +65,15 @@ class ClangdLanguageClient extends vscodelc.LanguageClient {
}
}
class EnableEditsNearCursorFeature implements vscodelc.StaticFeature {
initialize() {}
fillClientCapabilities(capabilities: vscodelc.ClientCapabilities): void {
const extendedCompletionCapabilities: any =
capabilities.textDocument.completion;
extendedCompletionCapabilities.editsNearCursor = true;
}
}
/**
* this method is called when your extension is activate
* your extension is activated the very first time the command is executed
@ -107,17 +116,18 @@ export function activate(context: vscode.ExtensionContext) {
// By adding the prefix to the beginning of the filterText, we get a perfect
// fuzzymatch score for every item.
// The sortText (which reflects clangd ranking) breaks the tie.
// This also prevents VSCode from filtering out any results due to the
// differences in how fuzzy filtering is applies, e.g. enable dot-to-arrow
// fixes in completion.
//
// We also have to mark the list as incomplete to force retrieving new rankings.
// See https://github.com/microsoft/language-server-protocol/issues/898
middleware: {
provideCompletionItem: async (document, position, context, token, next) => {
// Get the incomplete identifier before the cursor.
let word = document.getWordRangeAtPosition(position);
let prefix = word && document.getText(new vscode.Range(word.start, position));
let list = await next(document, position, context, token);
let items = (Array.isArray(list) ? list : list.items).map(item => {
// Gets the prefix used by vscode when doing fuzzymatch.
let prefix = document.getText(new vscode.Range(item.range.start, position))
if (prefix)
item.filterText = prefix + "_" + item.filterText;
return item;
@ -137,6 +147,7 @@ export function activate(context: vscode.ExtensionContext) {
vscode.Disposable.from(semanticHighlightingFeature));
clangdClient.registerFeature(semanticHighlightingFeature);
}
clangdClient.registerFeature(new EnableEditsNearCursorFeature);
console.log('Clang Language Server is now active!');
context.subscriptions.push(clangdClient.start());
context.subscriptions.push(vscode.commands.registerCommand(