/// <reference path="../pxtlib.d.ts" />
import * as Blockly from "blockly";
import { Environment } from "./compiler/environment";
/**
 * This interface defines the optionally defined functions for mutations that Blockly
 * will call if they exist.
 */
export interface MutatingBlock extends Blockly.Block {
    mutation: Mutation;
    mutationToDom(): Element;
    domToMutation(xmlElement: Element): void;
    compose(topBlock: Blockly.Block): void;
    decompose(workspace: Blockly.Workspace): Blockly.Block;
}
/**
 * Represents a mutation of a block
 */
export interface Mutation {
    /**
     * Get the unique identifier for this type of mutation
     */
    getMutationType(): string;
    /**
     * Compile the mutation of the block into a node representation
     */
    compileMutation(e: Environment, comments: string[]): pxt.blocks.JsNode;
    /**
     * Get a mapping of variables that were declared by this mutation and their types.
     */
    getDeclaredVariables(): pxt.Map<string>;
    /**
     * Returns true if a variable with the given name was declared in the mutation's compiled node
     */
    isDeclaredByMutation(varName: string): boolean;
}
export declare namespace MutatorTypes {
    const ObjectDestructuringMutator = "objectdestructuring";
    const RestParameterMutator = "restparameter";
    const DefaultInstanceMutator = "defaultinstance";
}
export declare function addMutation(b: MutatingBlock, info: pxtc.SymbolInfo, mutationType: string): void;
export declare function mutateToolboxBlock(block: Node, mutationType: string, mutation: string): void;