@atomist/automation-client/tree/ast/FileParserRegistry.js

Atomist API for software low-level client

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const axisSpecifiers_1 = require("@atomist/tree-path/path/axisSpecifiers");
const nodeTests_1 = require("@atomist/tree-path/path/nodeTests");
const pathExpression_1 = require("@atomist/tree-path/path/pathExpression");
const utils_1 = require("@atomist/tree-path/path/utils");
/**
 * Implementation of FileParserRegistry implementing fluent builder pattern
 */
class DefaultFileParserRegistry {
    constructor() {
        this.parserRegistry = {};
    }
    addParser(pr) {
        this.parserRegistry[pr.rootName] = pr;
        return this;
    }
    parserFor(pathExpression) {
        const parsed = utils_1.toPathExpression(pathExpression);
        if (!pathExpression_1.isUnionPathExpression(parsed)) {
            const determiningStep = parsed.locationSteps.find(s => s.axis !== axisSpecifiers_1.SelfAxisSpecifier);
            if (!!determiningStep && nodeTests_1.isNamedNodeTest(determiningStep.test)) {
                const parser = this.parserRegistry[determiningStep.test.name];
                if (!!parser) {
                    if (parser.validate) {
                        parser.validate(parsed);
                    }
                    return parser;
                }
            }
        }
        return undefined;
    }
    toString() {
        return `DefaultFileParserRegistry: parsers=[${Object.getOwnPropertyNames(this.parserRegistry)}]`;
    }
}
exports.DefaultFileParserRegistry = DefaultFileParserRegistry;
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