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blockly/core/interfaces/i_variable_map.ts
2024-07-18 11:01:22 -07:00

66 lines
1.9 KiB
TypeScript

/**
* @license
* Copyright 2024 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import type {IVariableModel, IVariableState} from './i_variable_model.js';
/**
* Variable maps are container objects responsible for storing and managing the
* set of variables referenced on a workspace.
*
* Any of these methods may define invariants about which names and types are
* legal, and throw if they are not met.
*/
export interface IVariableMap<T extends IVariableModel<IVariableState>> {
/* Returns the variable corresponding to the given ID, or null if none. */
getVariableById(id: string): T | null;
/**
* Returns the variable with the given name, or null if not found. If `type`
* is provided, the variable's type must also match, or null should be
* returned.
*/
getVariable(name: string, type?: string): T | null;
/* Returns a list of all variables managed by this variable map. */
getAllVariables(): T[];
/**
* Returns a list of all of the variables of the given type managed by this
* variable map.
*/
getVariablesOfType(type: string): T[];
/**
* Returns a list of the set of types of the variables managed by this
* variable map.
*/
getTypes(): string[];
/**
* Creates a new variable with the given name. If ID is not specified, the
* variable map should create one. Returns the new variable.
*/
createVariable(name: string, id?: string, type?: string | null): T;
/* Adds a variable to this variable map. */
addVariable(variable: T): void;
/**
* Changes the name of the given variable to the name provided and returns the
* renamed variable.
*/
renameVariable(variable: T, newName: string): T;
/* Changes the type of the given variable and returns it. */
changeVariableType(variable: T, newType: string): T;
/* Deletes the given variable. */
deleteVariable(variable: T): void;
/* Removes all variables from this variable map. */
clear(): void;
}