calcium-lang/dist/command/forEach.js

Calcium language interpreter

import { default as Sym } from "../symbol";
import { Block, Kind, Result } from "../runtime/block";
import { evaluate } from "../util";
/**
 * a foreach loop that don't use a function to get an iterable
 */
export default class ForEach {
    /**
     *
     * @param elemName the identifier of the retrieved object
     * @param iterable must refer to an iterable object
     */
    constructor(elemName, iterable) {
        this.elemName = elemName;
        this.iterable = iterable;
    }
    execute(env) {
        const iterableObj = evaluate(this.iterable, env);
        const iterator = Reflect.get(iterableObj, Sym.iter);
        const block = new Block(Kind.ForEach, env.address, (env) => {
            const nextValue = iterator.next();
            if (nextValue === undefined) {
                return false;
            }
            else {
                env.context.register(this.elemName, nextValue);
                return true;
            }
        }, (env) => {
            block.willEnter(env);
            return Result.Jumpped;
        });
        block.willEnter(env);
    }
}
//# sourceMappingURL=forEach.js.map