onion-core/dist/lib/delta_parser.js

"use strict";
var __rest = (this && this.__rest) || function (s, e) {
    var t = {};
    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)
        t[p] = s[p];
    if (s != null && typeof Object.getOwnPropertySymbols === "function")
        for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {
            if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))
                t[p[i]] = s[p[i]];
        }
    return t;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.DeltaParser = void 0;
class DeltaParser {
    constructor(deltaRegistry) {
        this.deltaRegistry = deltaRegistry;
    }
    getDependency(hash) {
        const result = this.deltaRegistry.deltas.get(hash);
        if (result === undefined)
            throw new Error("Could not dependency: " + hash);
        return result;
    }
    loadTarget(_a) {
        var { type } = _a, rest = __rest(_a, ["type"]);
        if (type === "TargetValue") {
            const { value } = rest;
            return value;
        }
        if (type === "TargetNode") {
            const { node } = rest;
            return this.getDependency(node);
        }
        throw new Error("Unknown edge target type: " + type);
    }
    loadEdge(_a) {
        var { type } = _a, rest = __rest(_a, ["type"]);
        if (type === "NewEdge") {
            const { source, label } = rest;
            return this.getDependency(source).createOutgoingEdge(label);
        }
        else if (type === "ExistingEdge") {
            const { overwrites } = rest;
            return this.getDependency(overwrites).overwrite();
        }
        throw new Error("Unknown edge type: " + type);
    }
    loadDelta(_a) {
        var { type } = _a, rest = __rest(_a, ["type"]);
        if (type === "NodeCreation") {
            const { id } = rest;
            return this.deltaRegistry.newNodeCreation(id);
        }
        else if (type === "EdgeUpdate") {
            const { overwrites, reads, target } = rest;
            return this.deltaRegistry.newEdgeUpdate(this.loadEdge(overwrites), this.loadTarget(target), reads.map(r => this.loadEdge(r)));
        }
        else if (type === "NodeDeletion") {
            const { node, afterSrc, afterTgt } = rest;
            return this.deltaRegistry.newNodeDeletion(this.getDependency(node), afterSrc.map(a => this.getDependency(a)), afterTgt.map(a => this.getDependency(a)));
        }
        else if (type === "Transaction") {
            const { type, deltas, dependencies, description } = rest;
            return this.deltaRegistry.newTransaction(deltas.map(d => this.getDependency(d)), description, dependencies.map(d => this.getDependency(d)));
        }
        throw new Error("Unknown delta type: " + type);
    }
}
exports.DeltaParser = DeltaParser;
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