ts-lit-plugin/lib/decorate-language-service.js

Typescript plugin that adds type checking and code completion to lit-html

"use strict";
var __assign = (this && this.__assign) || function () {
    __assign = Object.assign || function(t) {
        for (var s, i = 1, n = arguments.length; i < n; i++) {
            s = arguments[i];
            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
                t[p] = s[p];
        }
        return t;
    };
    return __assign.apply(this, arguments);
};
var __read = (this && this.__read) || function (o, n) {
    var m = typeof Symbol === "function" && o[Symbol.iterator];
    if (!m) return o;
    var i = m.call(o), r, ar = [], e;
    try {
        while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
    }
    catch (error) { e = { error: error }; }
    finally {
        try {
            if (r && !r.done && (m = i["return"])) m.call(i);
        }
        finally { if (e) throw e.error; }
    }
    return ar;
};
var __spread = (this && this.__spread) || function () {
    for (var ar = [], i = 0; i < arguments.length; i++) ar = ar.concat(__read(arguments[i]));
    return ar;
};
var __values = (this && this.__values) || function (o) {
    var m = typeof Symbol === "function" && o[Symbol.iterator], i = 0;
    if (m) return m.call(o);
    return {
        next: function () {
            if (o && i >= o.length) o = void 0;
            return { value: o && o[i++], done: !o };
        }
    };
};
Object.defineProperty(exports, "__esModule", { value: true });
var logger_1 = require("./logger");
function decorateLanguageService(languageService, plugin) {
    var e_1, _a, e_2, _b;
    var nextLanguageService = __assign({}, languageService, { getCompletionsAtPosition: plugin.getCompletionsAtPosition.bind(plugin), getCompletionEntryDetails: plugin.getCompletionEntryDetails.bind(plugin), getSemanticDiagnostics: plugin.getSemanticDiagnostics.bind(plugin), getDefinitionAndBoundSpan: plugin.getDefinitionAndBoundSpan.bind(plugin), getCodeFixesAtPosition: plugin.getCodeFixesAtPosition.bind(plugin), getQuickInfoAtPosition: plugin.getQuickInfoAtPosition.bind(plugin), getJsxClosingTagAtPosition: plugin.getJsxClosingTagAtPosition.bind(plugin), getRenameInfo: plugin.getRenameInfo.bind(plugin), findRenameLocations: plugin.findRenameLocations.bind(plugin) });
    var _loop_1 = function (methodName) {
        var newMethod = nextLanguageService[methodName];
        var oldMethod = languageService[methodName];
        if (newMethod !== oldMethod) {
            nextLanguageService[methodName] = function () {
                if (plugin.context.config.disable && oldMethod != null) {
                    return oldMethod.apply(void 0, __spread(arguments));
                }
                return wrapTryCatch(newMethod, oldMethod, methodName).apply(void 0, __spread(arguments));
            };
        }
    };
    try {
        // Make sure to call the old service if config.disable === true
        for (var _c = __values(Object.getOwnPropertyNames(nextLanguageService)), _d = _c.next(); !_d.done; _d = _c.next()) {
            var methodName = _d.value;
            _loop_1(methodName);
        }
    }
    catch (e_1_1) { e_1 = { error: e_1_1 }; }
    finally {
        try {
            if (_d && !_d.done && (_a = _c.return)) _a.call(_c);
        }
        finally { if (e_1) throw e_1.error; }
    }
    // Wrap all method called to the service in tryCatch and logging.
    if (plugin.context.config.logging === "verbose") {
        try {
            for (var _e = __values(Object.getOwnPropertyNames(nextLanguageService)), _f = _e.next(); !_f.done; _f = _e.next()) {
                var methodName = _f.value;
                var method = nextLanguageService[methodName];
                nextLanguageService[methodName] = wrapLog(methodName, method);
            }
        }
        catch (e_2_1) { e_2 = { error: e_2_1 }; }
        finally {
            try {
                if (_f && !_f.done && (_b = _e.return)) _b.call(_e);
            }
            finally { if (e_2) throw e_2.error; }
        }
    }
    return nextLanguageService;
}
exports.decorateLanguageService = decorateLanguageService;
/**
 * Wraps a function in try catch in order to debug the plugin.
 * If the function throws, this function logs the error.
 * @param newMethod
 * @param oldMethod
 * @param methodName
 */
function wrapTryCatch(newMethod, oldMethod, methodName) {
    return (function () {
        var args = [];
        for (var _i = 0; _i < arguments.length; _i++) {
            args[_i] = arguments[_i];
        }
        try {
            return newMethod.apply(void 0, __spread(args));
        }
        catch (e) {
            logger_1.logger.error("Error [" + methodName + "]: (" + e.stack + ") " + e.message, e);
            // Always return the old method if anything fails
            // Don't crash everything :-)
            return oldMethod.apply(void 0, __spread(args));
        }
    });
}
/**
 * Wraps a function so that it is logged every time the function called.
 * @param name
 * @param proxy
 */
function wrapLog(name, proxy) {
    return (function () {
        var args = [];
        for (var _i = 0; _i < arguments.length; _i++) {
            args[_i] = arguments[_i];
        }
        /**/
        var startTime = Date.now();
        logger_1.logger.verbose("[" + name + "] Called");
        var result = proxy.apply(void 0, __spread(args));
        var time = Date.now() - startTime;
        logger_1.logger.verbose("[" + name + "] Finished (" + Math.round(time) + "ms): Result: ", result == null ? "undefined" : Array.isArray(result) ? "Array: " + result.length + " length" : "defined");
        return result;
        /*/
        return proxy(...args);
        /**/
    });
}