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

Static Dataflow Analyzer and Program Slicer for the R Programming Language

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.uniqueMergeValuesInDefinitions = uniqueMergeValuesInDefinitions;
exports.appendEnvironment = appendEnvironment;
const scoping_1 = require("./scoping");
/**
 * Merges two arrays of identifier definitions, ensuring uniqueness based on `nodeId` and `definedAt`.
 */
function uniqueMergeValuesInDefinitions(old, value) {
    const result = old;
    for (const v of value) {
        const find = result.findIndex(o => o.nodeId === v.nodeId && o.definedAt === v.definedAt);
        if (find < 0) {
            result.push(v);
        }
    }
    return result;
}
function appendEnvironment(base, next) {
    if (base === undefined) {
        return next;
    }
    else if (next === undefined) {
        return base;
    }
    if (base.level !== next.level) {
        while (next.level < base.level) {
            next = (0, scoping_1.pushLocalEnvironment)(next);
        }
        while (next.level > base.level) {
            base = (0, scoping_1.pushLocalEnvironment)(base);
        }
    }
    return {
        current: base.current.append(next.current),
        level: base.level,
    };
}
//# sourceMappingURL=append.js.map