Add proposed api to support auto closing pairs on langauge configuration

src/vs/workbench/api/browser/mainThreadLanguageFeatures.ts

@@ -852,7 +852,9 @@ export class MainThreadLanguageFeatures extends Disposable implements MainThread
 			__electricCharacterSupport: undefined
 		};
 
-		if (_configuration.__characterPairSupport) {
+		if (_configuration.autoClosingPairs) {
+			configuration.autoClosingPairs = _configuration.autoClosingPairs;
+		} else if (_configuration.__characterPairSupport) {
 			// backwards compatibility
 			configuration.autoClosingPairs = _configuration.__characterPairSupport.autoClosingPairs;
 		}

src/vs/workbench/api/common/extHost.protocol.ts

@@ -344,6 +344,11 @@ export interface ILanguageConfigurationDto {
 			notIn?: string[];
 		}[];
 	};
+	autoClosingPairs?: {
+		open: string;
+		close: string;
+		notIn?: string[];
+	}[];
 }
 
 export type GlobPattern = string | IRelativePattern;

src/vs/workbench/api/common/extHostLanguageFeatures.ts

@@ -2533,6 +2533,10 @@ export class ExtHostLanguageFeatures implements extHostProtocol.ExtHostLanguageF
 				`Do not use.`);
 		}
 
+		if (configuration.autoClosingPairs) {
+			checkProposedApiEnabled(extension, 'languageConfigurationAutoClosingPairs');
+		}
+
 		const handle = this._nextHandle();
 		const serializedConfiguration: extHostProtocol.ILanguageConfigurationDto = {
 			comments: configuration.comments,
@@ -2542,7 +2546,9 @@ export class ExtHostLanguageFeatures implements extHostProtocol.ExtHostLanguageF
 			onEnterRules: configuration.onEnterRules ? ExtHostLanguageFeatures._serializeOnEnterRules(configuration.onEnterRules) : undefined,
 			__electricCharacterSupport: configuration.__electricCharacterSupport,
 			__characterPairSupport: configuration.__characterPairSupport,
+			autoClosingPairs: configuration.autoClosingPairs
 		};
+
 		this._proxy.$setLanguageConfiguration(handle, languageId, serializedConfiguration);
 		return this._createDisposable(handle);
 	}

src/vs/workbench/services/extensions/common/extensionsApiProposals.ts

@@ -54,6 +54,7 @@ export const allApiProposals = Object.freeze({
 	interactiveUserActions: 'https://raw.githubusercontent.com/microsoft/vscode/main/src/vscode-dts/vscode.proposed.interactiveUserActions.d.ts',
 	interactiveWindow: 'https://raw.githubusercontent.com/microsoft/vscode/main/src/vscode-dts/vscode.proposed.interactiveWindow.d.ts',
 	ipc: 'https://raw.githubusercontent.com/microsoft/vscode/main/src/vscode-dts/vscode.proposed.ipc.d.ts',
+	languageConfigurationAutoClosingPairs: 'https://raw.githubusercontent.com/microsoft/vscode/main/src/vscode-dts/vscode.proposed.languageConfigurationAutoClosingPairs.d.ts',
 	notebookCellExecutionState: 'https://raw.githubusercontent.com/microsoft/vscode/main/src/vscode-dts/vscode.proposed.notebookCellExecutionState.d.ts',
 	notebookCodeActions: 'https://raw.githubusercontent.com/microsoft/vscode/main/src/vscode-dts/vscode.proposed.notebookCodeActions.d.ts',
 	notebookControllerAffinityHidden: 'https://raw.githubusercontent.com/microsoft/vscode/main/src/vscode-dts/vscode.proposed.notebookControllerAffinityHidden.d.ts',

src/vscode-dts/vscode.proposed.languageConfigurationAutoClosingPairs.d.ts

@@ -0,0 +1,17 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+declare module 'vscode' {
+
+	// https://github.com/microsoft/vscode/issues/173738
+
+	export interface LanguageConfiguration {
+		autoClosingPairs?: {
+			open: string;
+			close: string;
+			notIn?: string[];
+		}[];
+	}
+}