Function ensureIdentifier

test/fixtures/snapshot/typescript.js:91418–91433

* Ensures that there exists a declared identifier whose value holds the given expression. * This function is useful to ensure that the expression's value can be read from in subsequent expressions. * Unless 'reuseIdentifierExpressions' is false, 'value' will be returned if it is just an id

(flattenContext, value, reuseIdentifierExpressions, location)

     * @param location The location to use for source maps and comments.
     */
    function ensureIdentifier(flattenContext, value, reuseIdentifierExpressions, location) {
        if (ts.isIdentifier(value) && reuseIdentifierExpressions) {
            return value;
        }
        else {
            var temp = flattenContext.context.factory.createTempVariable(/*recordTempVariable*/ undefined);
            if (flattenContext.hoistTempVariables) {
                flattenContext.context.hoistVariableDeclaration(temp);
                flattenContext.emitExpression(ts.setTextRange(flattenContext.context.factory.createAssignment(temp, value), location));
            }
            else {
                flattenContext.emitBindingOrAssignment(temp, value, location, /*original*/ undefined);
            }
            return temp;
        }
    }
    function makeArrayBindingPattern(factory, elements) {
        ts.Debug.assertEachNode(elements, ts.isArrayBindingElement);
        return factory.createArrayBindingPattern(elements);