Function processLabel

lib/processor.js:333–352

* Process a magic label. * * @param {Object} ast The `LabeledStatement` to process. * @param {Object} labels The map of label names to labels. * @param {Object} parent The `FunctionExpression` or `FunctionDeclaration` that contains the label. * @param {Object} options

(ast, labels, parent, options)

 * @return {Object[]}           The nodes that should be injected in place of the `LabeledStatement`.
 */
function processLabel(ast, labels, parent, options) {
    OBLIGATIONS.precondition(ast.type === 'LabeledStatement');
    OBLIGATIONS.precondition(ast.body.type === 'BlockStatement');
    OBLIGATIONS.precondition(parent && typeof parent === 'object');
    OBLIGATIONS.precondition(parent.type === 'FunctionDeclaration' || parent.type === 'FunctionExpression');
    OBLIGATIONS.precondition(options && typeof options === 'object');
    OBLIGATIONS.precondition(typeof options.supported === 'object');
    var __result;
    main: {
        if (typeof options.supported[ast.label.name] === 'function') {
            __result = options.supported[ast.label.name](ast, options, labels, parent);
            break main;
        } else {
            __result = ast.body.body;
            break main;
        }
    }
    OBLIGATIONS.postcondition(Array.isArray(__result));
    return __result;
}
/**
 * Remove deletable nodes from the given AST.
 *