src/vs/editor/contrib/bracketMatching/browser/bracketMatching.ts/BracketMatchingController/_updateBrackets
class BracketMatchingController:	private _updateBrackets(): void {
		if (this._matchBrackets === 'never') {
			return;
		}
		this._recomputeBrackets();

		const newDecorations: IModelDeltaDecoration[] = [];
		let newDecorationsLen = 0;
		for (const bracketData of this._lastBracketsData) {
			const brackets = bracketData.brackets;
			if (brackets) {
				newDecorations[newDecorationsLen++] = { range: brackets[0], options: bracketData.options };
				newDecorations[newDecorationsLen++] = { range: brackets[1], options: bracketData.options };
			}
		}

		this._decorations.set(newDecorations);
	}