diff options
Diffstat (limited to 'node_modules/chrome-trace-event/dist')
| -rw-r--r-- | node_modules/chrome-trace-event/dist/trace-event.d.ts | 51 | ||||
| -rw-r--r-- | node_modules/chrome-trace-event/dist/trace-event.js | 174 | ||||
| -rw-r--r-- | node_modules/chrome-trace-event/dist/trace-event.js.map | 1 |
3 files changed, 226 insertions, 0 deletions
diff --git a/node_modules/chrome-trace-event/dist/trace-event.d.ts b/node_modules/chrome-trace-event/dist/trace-event.d.ts new file mode 100644 index 00000000..d46d8699 --- /dev/null +++ b/node_modules/chrome-trace-event/dist/trace-event.d.ts @@ -0,0 +1,51 @@ +/// <reference types="node" /> +/** + * trace-event - A library to create a trace of your node app per + * Google's Trace Event format: + * // JSSTYLED + * https://docs.google.com/document/d/1CvAClvFfyA5R-PhYUmn5OOQtYMH4h6I0nSsKchNAySU + */ +import { Readable as ReadableStream } from "stream"; +export interface Event { + ts: number; + pid: number; + tid: number; + /** event phase */ + ph?: string; + [otherData: string]: any; +} +export interface Fields { + cat?: any; + args?: any; + [filedName: string]: any; +} +export interface TracerOptions { + parent?: Tracer | null; + fields?: Fields | null; + objectMode?: boolean | null; + noStream?: boolean; +} +export declare class Tracer extends ReadableStream { + private _objectMode; + /** Node Stream internal APIs */ + private _push; + private firstPush?; + private noStream; + private events; + private parent; + private fields; + constructor(opts?: TracerOptions); + /** + * If in no streamMode in order to flush out the trace + * you need to call flush. + */ + flush(): void; + _read(_: number): void; + private _pushString(ev); + child(fields: Fields): Tracer; + begin(fields: Fields): void; + end(fields: Fields): void; + completeEvent(fields: Fields): void; + instantEvent(fields: Fields): void; + mkEventFunc(ph: string): (fields: Fields) => void; +} diff --git a/node_modules/chrome-trace-event/dist/trace-event.js b/node_modules/chrome-trace-event/dist/trace-event.js new file mode 100644 index 00000000..b07b2913 --- /dev/null +++ b/node_modules/chrome-trace-event/dist/trace-event.js @@ -0,0 +1,174 @@ +"use strict"; +/** + * trace-event - A library to create a trace of your node app per + * Google's Trace Event format: + * // JSSTYLED + * https://docs.google.com/document/d/1CvAClvFfyA5R-PhYUmn5OOQtYMH4h6I0nSsKchNAySU + */ +Object.defineProperty(exports, "__esModule", { value: true }); +var tslib_1 = require("tslib"); +var stream_1 = require("stream"); +function evCommon() { + var hrtime = process.hrtime(); // [seconds, nanoseconds] + var ts = hrtime[0] * 1000000 + Math.round(hrtime[1] / 1000); // microseconds + return { + ts: ts, + pid: process.pid, + tid: process.pid // no meaningful tid for node.js + }; +} +var Tracer = /** @class */ (function (_super) { + tslib_1.__extends(Tracer, _super); + function Tracer(opts) { + if (opts === void 0) { opts = {}; } + var _this = _super.call(this) || this; + _this.noStream = false; + _this.events = []; + if (typeof opts !== "object") { + throw new Error("Invalid options passed (must be an object)"); + } + if (opts.parent != null && typeof opts.parent !== "object") { + throw new Error("Invalid option (parent) passed (must be an object)"); + } + if (opts.fields != null && typeof opts.fields !== "object") { + throw new Error("Invalid option (fields) passed (must be an object)"); + } + if (opts.objectMode != null && + (opts.objectMode !== true && opts.objectMode !== false)) { + throw new Error("Invalid option (objectsMode) passed (must be a boolean)"); + } + _this.noStream = opts.noStream || false; + _this.parent = opts.parent; + if (_this.parent) { + _this.fields = Object.assign({}, opts.parent && opts.parent.fields); + } + else { + _this.fields = {}; + } + if (opts.fields) { + Object.assign(_this.fields, opts.fields); + } + if (!_this.fields.cat) { + // trace-viewer *requires* `cat`, so let's have a fallback. + _this.fields.cat = "default"; + } + else if (Array.isArray(_this.fields.cat)) { + _this.fields.cat = _this.fields.cat.join(","); + } + if (!_this.fields.args) { + // trace-viewer *requires* `args`, so let's have a fallback. + _this.fields.args = {}; + } + if (_this.parent) { + // TODO: Not calling Readable ctor here. Does that cause probs? + // Probably if trying to pipe from the child. + // Might want a serpate TracerChild class for these guys. + _this._push = _this.parent._push.bind(_this.parent); + } + else { + _this._objectMode = Boolean(opts.objectMode); + var streamOpts = { objectMode: _this._objectMode }; + if (_this._objectMode) { + _this._push = _this.push; + } + else { + _this._push = _this._pushString; + streamOpts.encoding = "utf8"; + } + stream_1.Readable.call(_this, streamOpts); + } + return _this; + } + /** + * If in no streamMode in order to flush out the trace + * you need to call flush. + */ + Tracer.prototype.flush = function () { + if (this.noStream === true) { + for (var _i = 0, _a = this.events; _i < _a.length; _i++) { + var evt = _a[_i]; + this._push(evt); + } + } + }; + Tracer.prototype._read = function (_) { }; + Tracer.prototype._pushString = function (ev) { + if (!this.firstPush) { + this.push("["); + this.firstPush = true; + } + this.push(JSON.stringify(ev) + ",\n", "utf8"); + }; + // TODO Perhaps figure out getting a trailing ']' without ',]' if helpful. + //Tracer.prototype._flush = function _flush() { + // if (!this._objectMode) { + // this.push(']') + // } + //}; + Tracer.prototype.child = function (fields) { + return new Tracer({ + parent: this, + fields: fields + }); + }; + Tracer.prototype.begin = function (fields) { + return this.mkEventFunc("b")(fields); + }; + Tracer.prototype.end = function (fields) { + return this.mkEventFunc("e")(fields); + }; + Tracer.prototype.completeEvent = function (fields) { + return this.mkEventFunc("X")(fields); + }; + Tracer.prototype.instantEvent = function (fields) { + return this.mkEventFunc("I")(fields); + }; + Tracer.prototype.mkEventFunc = function (ph) { + var _this = this; + return function (fields) { + var ev = evCommon(); + // Assign the event phase. + ev.ph = ph; + if (fields) { + if (typeof fields === "string") { + ev.name = fields; + } + else { + for (var _i = 0, _a = Object.keys(fields); _i < _a.length; _i++) { + var k = _a[_i]; + if (k === "cat") { + ev.cat = fields.cat.join(","); + } + else { + ev[k] = fields[k]; + } + } + } + } + if (!_this.noStream) { + _this._push(ev); + } + else { + _this.events.push(ev); + } + }; + }; + return Tracer; +}(stream_1.Readable)); +exports.Tracer = Tracer; +/* + * These correspond to the "Async events" in the Trace Events doc. + * + * Required fields: + * - name + * - id + * + * Optional fields: + * - cat (array) + * - args (object) + * - TODO: stack fields, other optional fields? + * + * Dev Note: We don't explicitly assert that correct fields are + * used for speed (premature optimization alert!). + */ +//# sourceMappingURL=trace-event.js.map
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