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import * as vscode from 'vscode';
const typeScriptExtensionId = 'vscode.typescript-language-features';
const pluginId = 'typescript-lit-html-plugin';
const configurationSection = 'lit-html';
interface SynchronizedConfiguration {
tags?: ReadonlyArray<string>;
format: {
enabled?: boolean;
}
}
export async function activate(context: vscode.ExtensionContext) {
const extension = vscode.extensions.getExtension(typeScriptExtensionId);
if (!extension) {
return;
}
await extension.activate();
if (!extension.exports || !extension.exports.getAPI) {
return;
}
const api = extension.exports.getAPI(0);
if (!api) {
return;
}
vscode.workspace.onDidChangeConfiguration(e => {
if (e.affectsConfiguration(configurationSection)) {
synchronizeConfiguration(api);
}
}, undefined, context.subscriptions);
synchronizeConfiguration(api);
}
function synchronizeConfiguration(api: any) {
api.configurePlugin(pluginId, getConfiguration());
}
function getConfiguration(): SynchronizedConfiguration {
const config = vscode.workspace.getConfiguration(configurationSection);
const outConfig: SynchronizedConfiguration = {
format: {}
};
withConfigValue<string[]>(config, 'tags', tags => { outConfig.tags = tags; });
withConfigValue<boolean>(config, 'format.enabled', enabled => { outConfig.format.enabled = enabled; });
return outConfig;
}
function withConfigValue<T>(config: vscode.WorkspaceConfiguration, key: string, withValue: (value: T) => void): void {
const configSetting = config.inspect(key);
if (!configSetting) {
return;
}
// Make sure the user has actually set the value.
// VS Code will return the default values instead of `undefined`, even if user has not don't set anything.
if (typeof configSetting.globalValue === 'undefined' && typeof configSetting.workspaceFolderValue === 'undefined' && typeof configSetting.workspaceValue === 'undefined') {
return;
}
const value = config.get<T | undefined>(key, undefined);
if (typeof value !== 'undefined') {
withValue(value);
}
}