calcium-lang/dist/command/compoundAssign.js

Calcium language interpreter

import * as Expr from "../expression";
import evaluate from "../util/evaluate";
/**
 * eg. `+=`, `-=` or `*=`
 */
export default class CompoundAssign {
    /**
     *
     * @param operator same as the correspoding binary operator
     * @param lhs
     * @param rhs
     */
    constructor(operator, lhs, rhs) {
        this.operator = operator;
        this.lhs = lhs;
        this.rhs = rhs;
    }
    execute(env) {
        const binOp = new Expr.BinaryOperation(this.operator, this.lhs, this.rhs);
        const updatedValue = evaluate(binOp, env);
        this.lhs.assign(updatedValue, env);
    }
}
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