108 lines
2.5 KiB
JavaScript
108 lines
2.5 KiB
JavaScript
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// Gathers statistical data, and provides them in convinient form
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"use strict";
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var partial = require("es5-ext/function/#/partial")
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, forEach = require("es5-ext/object/for-each")
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, pad = require("es5-ext/string/#/pad")
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, compact = require("es5-ext/array/#/compact")
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, d = require("d")
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, memoize = require("./plain");
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var max = Math.max, stats = exports.statistics = {};
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Object.defineProperty(
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memoize,
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"__profiler__",
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d(function (conf) {
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var id, source, data, stack;
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stack = new Error().stack;
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if (
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!stack ||
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!stack.split("\n").slice(3).some(function (line) {
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if (line.indexOf("/memoizee/") === -1 && line.indexOf(" (native)") === -1) {
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source = line.replace(/\n/g, "\\n").trim();
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return true;
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}
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return false;
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})
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) {
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source = "unknown";
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}
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id = compact.call([conf.profileName, source]).join(", ");
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if (!stats[id]) stats[id] = { initial: 0, cached: 0 };
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data = stats[id];
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conf.on("set", function () { ++data.initial; });
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conf.on("get", function () { ++data.cached; });
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})
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);
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exports.log = function () {
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var initial, cached, ordered, ipad, cpad, ppad, toPrc, log;
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initial = cached = 0;
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ordered = [];
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toPrc = function (initialCount, cachedCount) {
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if (!initialCount && !cachedCount) {
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return "0.00";
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}
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return ((cachedCount / (initialCount + cachedCount)) * 100).toFixed(2);
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};
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log = "------------------------------------------------------------\n";
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log += "Memoize statistics:\n\n";
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forEach(
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stats,
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function (data, name) {
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initial += data.initial;
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cached += data.cached;
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ordered.push([name, data]);
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},
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null,
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function (nameA, nameB) {
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return (
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this[nameB].initial +
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this[nameB].cached -
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(this[nameA].initial + this[nameA].cached)
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);
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}
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);
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ipad = partial.call(pad, " ", max(String(initial).length, "Init".length));
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cpad = partial.call(pad, " ", max(String(cached).length, "Cache".length));
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ppad = partial.call(pad, " ", "%Cache".length);
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log +=
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ipad.call("Init") +
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" " +
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cpad.call("Cache") +
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" " +
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ppad.call("%Cache") +
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" Source location\n";
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log +=
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ipad.call(initial) +
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" " +
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cpad.call(cached) +
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" " +
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ppad.call(toPrc(initial, cached)) +
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" (all)\n";
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ordered.forEach(function (data) {
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var name = data[0];
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data = data[1];
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log +=
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ipad.call(data.initial) +
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" " +
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cpad.call(data.cached) +
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" " +
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ppad.call(toPrc(data.initial, data.cached)) +
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" " +
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name +
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"\n";
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});
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log += "------------------------------------------------------------\n";
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return log;
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};
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