@eagleoutice/flowr/dataflow/environments/clone.js

Static Dataflow Analyzer and Program Slicer for the R Programming Language

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.cloneEnvironmentInformation = cloneEnvironmentInformation;
const environment_1 = require("./environment");
function cloneEnvironment(environment, recurseParents) {
    if (environment === undefined) {
        return undefined;
    }
    else if (environment.id === environment_1.BuiltInEnvironment.id) {
        return environment_1.BuiltInEnvironment;
    }
    /* make sure the clone has the same id */
    const clone = new environment_1.Environment(recurseParents ? cloneEnvironment(environment.parent, recurseParents) : environment.parent);
    clone.memory = new Map(JSON.parse(JSON.stringify([...environment.memory])));
    return clone;
}
/**
 * Produce a clone of the given environment information.
 * @param environment    - The environment information to clone.
 * @param recurseParents - Whether to clone the parent environments as well.
 */
function cloneEnvironmentInformation(environment, recurseParents = true) {
    return {
        current: cloneEnvironment(environment.current, recurseParents),
        level: environment.level
    };
}
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