import * as Shift from 'shift-ast';
import Modification from '../../modification';
export default class DeadBranchRemover extends Modification {
    /**
     * Creates a new modification.
     * @param ast The AST.
     */
    constructor(ast: Shift.Script | Shift.Module);
    /**
     * Executes the modification.
     */
    execute(): void;
    /**
     * Removes dead branches within an AST node.
     * @param node The AST node.
     */
    private removeBranches;
    /**
     * Attempts to get the body from a node, otherwise just returns the
     * node itself.
     * @param node The AST node.
     * @returns The body of the node.
     */
    private getBody;
    /**
     * Returns whether a node is an if statement containing a dead branch.
     * @param node The AST node.
     * @returns Whether.
     */
    private isFixedIfStatement;
    /**
     * Returns whether a node is a conditional expression containing a dead
     * branch.
     * @param node The AST node.
     * @returns Whether.
     */
    private isFixedConditional;
}