Commit 3d864caf authored by Bob Van Landuyt's avatar Bob Van Landuyt

Merge branch 'speedscope' into 'master'

Adds flamegraph generation using Speedscope

See merge request gitlab-org/gitlab!53288
parents f9a40430 1dad8da3
......@@ -20,12 +20,12 @@ module WithPerformanceBar
end
def cookie_or_default_value
return false unless Gitlab::PerformanceBar.enabled_for_user?(current_user)
cookie_enabled = if cookies[:perf_bar_enabled].present?
cookies[:perf_bar_enabled] == 'true'
else
cookies[:perf_bar_enabled] = 'true' if Rails.env.development?
end
if cookies[:perf_bar_enabled].present?
cookies[:perf_bar_enabled] == 'true'
else
cookies[:perf_bar_enabled] = 'true' if Rails.env.development?
end
cookie_enabled && Gitlab::PerformanceBar.allowed_for_user?(current_user)
end
end
---
title: Add generating Speedscope flamegraphs for a request
merge_request: 53288
author:
type: added
......@@ -173,6 +173,8 @@ module Gitlab
config.assets.paths << Gemojione.images_path
config.assets.paths << "#{config.root}/vendor/assets/fonts"
config.assets.paths << "#{config.root}/vendor/speedscope"
config.assets.precompile << "application_utilities.css"
config.assets.precompile << "application_utilities_dark.css"
config.assets.precompile << "application_dark.css"
......
......@@ -2,4 +2,5 @@
Rails.application.configure do |config|
config.middleware.use(Gitlab::RequestProfiler::Middleware)
config.middleware.use(Gitlab::Middleware::Speedscope)
end
......@@ -96,6 +96,16 @@ that builds on this to add some additional niceties, such as allowing
configuration with a single YAML file for multiple URLs, and uploading of the
profile and log output to S3.
## Speedscope flamegraphs
You can generate a flamegraph for a particular URL by adding the `performance_bar=flamegraph` parameter to the request.
![Speedscope](img/speedscope_v13_12.png)
More information about the views can be found in the [Speedscope docs](https://github.com/jlfwong/speedscope#views)
This is enabled for all users that can access the performance bar.
## Sherlock
Sherlock is a custom profiling tool built into GitLab. Sherlock is _only_
......
......@@ -4,17 +4,17 @@ module API
module Helpers
module PerformanceBarHelpers
def set_peek_enabled_for_current_request
Gitlab::SafeRequestStore.fetch(:peek_enabled) { perf_bar_cookie_enabled? && perf_bar_enabled_for_user? }
Gitlab::SafeRequestStore.fetch(:peek_enabled) { perf_bar_cookie_enabled? && perf_bar_allowed_for_user? }
end
def perf_bar_cookie_enabled?
cookies[:perf_bar_enabled] == 'true'
end
def perf_bar_enabled_for_user?
def perf_bar_allowed_for_user?
# We cannot use `current_user` here because that method raises an exception when the user
# is unauthorized and some API endpoints require that `current_user` is not called.
Gitlab::PerformanceBar.enabled_for_user?(find_user_from_sources)
Gitlab::PerformanceBar.allowed_for_user?(find_user_from_sources)
end
end
end
......
# frozen_string_literal: true
module Gitlab
module Middleware
class Speedscope
def initialize(app)
@app = app
end
def call(env)
request = Rack::Request.new(env)
if request.params['performance_bar'] == 'flamegraph' && Gitlab::PerformanceBar.allowed_for_user?(request.env['warden'].user)
body = nil
Gitlab::SafeRequestStore[:capturing_flamegraph] = true
require 'stackprof'
flamegraph = ::StackProf.run(
mode: :wall,
raw: true,
aggregate: false,
interval: (0.5 * 1000).to_i
) do
_, _, body = @app.call(env)
end
path = env['PATH_INFO'].sub('//', '/')
body.close if body.respond_to?(:close)
return flamegraph(flamegraph, path)
end
@app.call(env)
end
def flamegraph(graph, path)
headers = { 'Content-Type' => 'text/html' }
html = <<~HTML
<!DOCTYPE html>
<html>
<head>
<style>
body { margin: 0; height: 100vh; }
#speedscope-iframe { width: 100%; height: 100%; border: none; }
</style>
</head>
<body>
<script type="text/javascript">
var graph = #{Gitlab::Json.generate(graph)};
var json = JSON.stringify(graph);
var blob = new Blob([json], { type: 'text/plain' });
var objUrl = encodeURIComponent(URL.createObjectURL(blob));
var iframe = document.createElement('IFRAME');
iframe.setAttribute('id', 'speedscope-iframe');
document.body.appendChild(iframe);
var iframeUrl = '#{Gitlab.config.gitlab.relative_url_root}/assets/speedscope/index.html#profileURL=' + objUrl + '&title=' + 'Flamegraph for #{CGI.escape(path)}';
iframe.setAttribute('src', iframeUrl);
</script>
</body>
</html>
HTML
[200, headers, [html]]
end
end
end
end
......@@ -7,10 +7,10 @@ module Gitlab
EXPIRY_TIME_L2_CACHE = 5.minutes
def self.enabled_for_request?
Gitlab::SafeRequestStore[:peek_enabled]
!Gitlab::SafeRequestStore[:capturing_flamegraph] && Gitlab::SafeRequestStore[:peek_enabled]
end
def self.enabled_for_user?(user = nil)
def self.allowed_for_user?(user = nil)
return true if Rails.env.development?
return true if user&.admin?
return false unless user && allowed_group_id
......
# frozen_string_literal: true
require 'spec_helper'
require 'stackprof'
RSpec.describe Gitlab::Middleware::Speedscope do
let(:app) { proc { |env| [200, { 'Content-Type' => 'text/plain' }, ['Hello world!']] } }
let(:middleware) { described_class.new(app) }
describe '#call' do
shared_examples 'returns original response' do
it 'returns original response' do
expect(StackProf).not_to receive(:run)
status, headers, body = middleware.call(env)
expect(status).to eq(200)
expect(headers).to eq({ 'Content-Type' => 'text/plain' })
expect(body.first).to eq('Hello world!')
end
end
context 'when flamegraph is not requested' do
let(:env) { Rack::MockRequest.env_for('/') }
it_behaves_like 'returns original response'
end
context 'when flamegraph requested' do
let(:env) { Rack::MockRequest.env_for('/', params: { 'performance_bar' => 'flamegraph' }) }
before do
allow(env).to receive(:[]).and_call_original
end
context 'when user is not allowed' do
before do
allow(env).to receive(:[]).with('warden').and_return(double('Warden', user: create(:user)))
end
it_behaves_like 'returns original response'
end
context 'when user is allowed' do
before do
allow(env).to receive(:[]).with('warden').and_return(double('Warden', user: create(:admin)))
end
it 'runs StackProf and returns a flamegraph' do
expect(StackProf).to receive(:run).and_call_original
status, headers, body = middleware.call(env)
expect(status).to eq(200)
expect(headers).to eq({ 'Content-Type' => 'text/html' })
expect(body.first).to include('speedscope-iframe')
end
end
end
end
end
......@@ -6,7 +6,7 @@ RSpec.describe Gitlab::PerformanceBar do
it { expect(described_class.l1_cache_backend).to eq(Gitlab::ProcessMemoryCache.cache_backend) }
it { expect(described_class.l2_cache_backend).to eq(Rails.cache) }
describe '.enabled_for_user?' do
describe '.allowed_for_user?' do
let(:user) { create(:user) }
before do
......@@ -14,24 +14,24 @@ RSpec.describe Gitlab::PerformanceBar do
end
it 'returns false when given user is nil' do
expect(described_class.enabled_for_user?(nil)).to be_falsy
expect(described_class.allowed_for_user?(nil)).to be_falsy
end
it 'returns true when given user is an admin' do
user = build_stubbed(:user, :admin)
expect(described_class.enabled_for_user?(user)).to be_truthy
expect(described_class.allowed_for_user?(user)).to be_truthy
end
it 'returns false when allowed_group_id is nil' do
expect(described_class).to receive(:allowed_group_id).and_return(nil)
expect(described_class.enabled_for_user?(user)).to be_falsy
expect(described_class.allowed_for_user?(user)).to be_falsy
end
context 'when allowed group ID does not exist' do
it 'returns false' do
expect(described_class.enabled_for_user?(user)).to be_falsy
expect(described_class.allowed_for_user?(user)).to be_falsy
end
end
......@@ -44,15 +44,15 @@ RSpec.describe Gitlab::PerformanceBar do
context 'when user is not a member of the allowed group' do
it 'returns false' do
expect(described_class.enabled_for_user?(user)).to be_falsy
expect(described_class.allowed_for_user?(user)).to be_falsy
end
context 'caching of allowed user IDs' do
subject { described_class.enabled_for_user?(user) }
subject { described_class.allowed_for_user?(user) }
before do
# Warm the caches
described_class.enabled_for_user?(user)
described_class.allowed_for_user?(user)
end
it_behaves_like 'allowed user IDs are cached'
......@@ -65,15 +65,15 @@ RSpec.describe Gitlab::PerformanceBar do
end
it 'returns true' do
expect(described_class.enabled_for_user?(user)).to be_truthy
expect(described_class.allowed_for_user?(user)).to be_truthy
end
context 'caching of allowed user IDs' do
subject { described_class.enabled_for_user?(user) }
subject { described_class.allowed_for_user?(user) }
before do
# Warm the caches
described_class.enabled_for_user?(user)
described_class.allowed_for_user?(user)
end
it_behaves_like 'allowed user IDs are cached'
......@@ -91,7 +91,7 @@ RSpec.describe Gitlab::PerformanceBar do
end
it 'returns the nested group' do
expect(described_class.enabled_for_user?(user)).to be_truthy
expect(described_class.allowed_for_user?(user)).to be_truthy
end
end
......@@ -101,7 +101,7 @@ RSpec.describe Gitlab::PerformanceBar do
end
it 'returns false' do
expect(described_class.enabled_for_user?(user)).to be_falsy
expect(described_class.allowed_for_user?(user)).to be_falsy
end
end
end
......
MIT License
Copyright (c) 2018 Jamie Wong
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
This is a self-contained release of https://github.com/jlfwong/speedscope.
To use it, open index.html in Chrome or Firefox.
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{
"$schema": "http://json-schema.org/draft-07/schema#",
"definitions": {
"CloseFrameEvent": {
"properties": {
"at": {
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"frame": {
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"unit": {
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},
"required": [
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],
"title": "FileFormat.EventedProfile",
"type": "object"
},
"FileFormat.File": {
"properties": {
"$schema": {
"enum": [
"https://www.speedscope.app/file-format-schema.json"
],
"title": "$schema",
"type": "string"
},
"activeProfileIndex": {
"title": "activeProfileIndex",
"type": "number"
},
"exporter": {
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"type": "string"
},
"name": {
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"type": "string"
},
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{
"$ref": "#/definitions/FileFormat.EventedProfile"
},
{
"$ref": "#/definitions/FileFormat.SampledProfile"
}
]
},
"title": "profiles",
"type": "array"
},
"shared": {
"properties": {
"frames": {
"items": {
"$ref": "#/definitions/FileFormat.Frame"
},
"title": "frames",
"type": "array"
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"required": [
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],
"title": "shared",
"type": "object"
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"required": [
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],
"title": "FileFormat.File",
"type": "object"
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"FileFormat.Frame": {
"properties": {
"col": {
"title": "col",
"type": "number"
},
"file": {
"title": "file",
"type": "string"
},
"line": {
"title": "line",
"type": "number"
},
"name": {
"title": "name",
"type": "string"
}
},
"required": [
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],
"title": "FileFormat.Frame",
"type": "object"
},
"FileFormat.IProfile": {
"properties": {
"type": {
"$ref": "#/definitions/FileFormat.ProfileType",
"title": "type"
}
},
"required": [
"type"
],
"title": "FileFormat.IProfile",
"type": "object"
},
"FileFormat.Profile": {
"anyOf": [
{
"$ref": "#/definitions/FileFormat.EventedProfile"
},
{
"$ref": "#/definitions/FileFormat.SampledProfile"
}
]
},
"FileFormat.ProfileType": {
"enum": [
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],
"title": "FileFormat.ProfileType",
"type": "string"
},
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"properties": {
"endValue": {
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"type": "number"
},
"name": {
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"samples": {
"items": {
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"unit": {
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"weights": {
"items": {
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"title": "weights",
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},
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}
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<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta http-equiv="X-UA-Compatible" content="ie=edge"><title>speedscope</title><link href="https://fonts.googleapis.com/css?family=Source+Code+Pro" rel="stylesheet"><script></script><link rel="stylesheet" href="reset.8c46b7a1.css"><link rel="icon" type="image/png" sizes="32x32" href="favicon-32x32.bc503437.png"><link rel="icon" type="image/png" sizes="16x16" href="favicon-16x16.f74b3187.png"></head><body> <script src="speedscope.026f36b0.js"></script>
</body></html>
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Sun Feb 14 23:36:53 PST 2021
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function e(e,r,n){if(r in e)return e[r];if(3===arguments.length)return n;throw new Error('"'+r+'" is a required argument.')}exports.getArg=e;var r=/^(?:([\w+\-.]+):)?\/\/(?:(\w+:\w+)@)?([\w.-]*)(?::(\d+))?(.*)$/,n=/^data:.+\,.+$/;function t(e){var n=e.match(r);return n?{scheme:n[1],auth:n[2],host:n[3],port:n[4],path:n[5]}:null}function o(e){var r="";return e.scheme&&(r+=e.scheme+":"),r+="//",e.auth&&(r+=e.auth+"@"),e.host&&(r+=e.host),e.port&&(r+=":"+e.port),e.path&&(r+=e.path),r}function a(e){var r=e,n=t(e);if(n){if(!n.path)return e;r=n.path}for(var a,i=exports.isAbsolute(r),u=r.split(/\/+/),c=0,s=u.length-1;s>=0;s--)"."===(a=u[s])?u.splice(s,1):".."===a?c++:c>0&&(""===a?(u.splice(s+1,c),c=0):(u.splice(s,2),c--));return""===(r=u.join("/"))&&(r=i?"/":"."),n?(n.path=r,o(n)):r}function i(e,r){""===e&&(e="."),""===r&&(r=".");var i=t(r),u=t(e);if(u&&(e=u.path||"/"),i&&!i.scheme)return u&&(i.scheme=u.scheme),o(i);if(i||r.match(n))return r;if(u&&!u.host&&!u.path)return u.host=r,o(u);var c="/"===r.charAt(0)?r:a(e.replace(/\/+$/,"")+"/"+r);return u?(u.path=c,o(u)):c}function u(e,r){""===e&&(e="."),e=e.replace(/\/$/,"");for(var n=0;0!==r.indexOf(e+"/");){var t=e.lastIndexOf("/");if(t<0)return r;if((e=e.slice(0,t)).match(/^([^\/]+:\/)?\/*$/))return r;++n}return Array(n+1).join("../")+r.substr(e.length+1)}exports.urlParse=t,exports.urlGenerate=o,exports.normalize=a,exports.join=i,exports.isAbsolute=function(e){return"/"===e.charAt(0)||r.test(e)},exports.relative=u;var c=!("__proto__"in Object.create(null));function s(e){return e}function l(e){return p(e)?"$"+e:e}function h(e){return p(e)?e.slice(1):e}function p(e){if(!e)return!1;var r=e.length;if(r<9)return!1;if(95!==e.charCodeAt(r-1)||95!==e.charCodeAt(r-2)||111!==e.charCodeAt(r-3)||116!==e.charCodeAt(r-4)||111!==e.charCodeAt(r-5)||114!==e.charCodeAt(r-6)||112!==e.charCodeAt(r-7)||95!==e.charCodeAt(r-8)||95!==e.charCodeAt(r-9))return!1;for(var n=r-10;n>=0;n--)if(36!==e.charCodeAt(n))return!1;return!0}function f(e,r,n){var t=d(e.source,r.source);return 0!==t?t:0!==(t=e.originalLine-r.originalLine)?t:0!==(t=e.originalColumn-r.originalColumn)||n?t:0!==(t=e.generatedColumn-r.generatedColumn)?t:0!==(t=e.generatedLine-r.generatedLine)?t:d(e.name,r.name)}function g(e,r,n){var t=e.generatedLine-r.generatedLine;return 0!==t?t:0!==(t=e.generatedColumn-r.generatedColumn)||n?t:0!==(t=d(e.source,r.source))?t:0!==(t=e.originalLine-r.originalLine)?t:0!==(t=e.originalColumn-r.originalColumn)?t:d(e.name,r.name)}function d(e,r){return e===r?0:null===e?1:null===r?-1:e>r?1:-1}function m(e,r){var n=e.generatedLine-r.generatedLine;return 0!==n?n:0!==(n=e.generatedColumn-r.generatedColumn)?n:0!==(n=d(e.source,r.source))?n:0!==(n=e.originalLine-r.originalLine)?n:0!==(n=e.originalColumn-r.originalColumn)?n:d(e.name,r.name)}function C(e){return JSON.parse(e.replace(/^\)]}'[^\n]*\n/,""))}function v(e,r,n){if(r=r||"",e&&("/"!==e[e.length-1]&&"/"!==r[0]&&(e+="/"),r=e+r),n){var u=t(n);if(!u)throw new Error("sourceMapURL could not be parsed");if(u.path){var c=u.path.lastIndexOf("/");c>=0&&(u.path=u.path.substring(0,c+1))}r=i(o(u),r)}return a(r)}exports.toSetString=c?s:l,exports.fromSetString=c?s:h,exports.compareByOriginalPositions=f,exports.compareByGeneratedPositionsDeflated=g,exports.compareByGeneratedPositionsInflated=m,exports.parseSourceMapInput=C,exports.computeSourceURL=v;
},{}],"dghU":[function(require,module,exports) {
var t=require("./util"),e=Object.prototype.hasOwnProperty,r="undefined"!=typeof Map;function n(){this._array=[],this._set=r?new Map:Object.create(null)}n.fromArray=function(t,e){for(var r=new n,i=0,s=t.length;i<s;i++)r.add(t[i],e);return r},n.prototype.size=function(){return r?this._set.size:Object.getOwnPropertyNames(this._set).length},n.prototype.add=function(n,i){var s=r?n:t.toSetString(n),o=r?this.has(n):e.call(this._set,s),a=this._array.length;o&&!i||this._array.push(n),o||(r?this._set.set(n,a):this._set[s]=a)},n.prototype.has=function(n){if(r)return this._set.has(n);var i=t.toSetString(n);return e.call(this._set,i)},n.prototype.indexOf=function(n){if(r){var i=this._set.get(n);if(i>=0)return i}else{var s=t.toSetString(n);if(e.call(this._set,s))return this._set[s]}throw new Error('"'+n+'" is not in the set.')},n.prototype.at=function(t){if(t>=0&&t<this._array.length)return this._array[t];throw new Error("No element indexed by "+t)},n.prototype.toArray=function(){return this._array.slice()},exports.ArraySet=n;
},{"./util":"XUQW"}],"AUTm":[function(require,module,exports) {
var t=require("./util");function e(e,r){var a=e.generatedLine,n=r.generatedLine,o=e.generatedColumn,s=r.generatedColumn;return n>a||n==a&&s>=o||t.compareByGeneratedPositionsInflated(e,r)<=0}function r(){this._array=[],this._sorted=!0,this._last={generatedLine:-1,generatedColumn:0}}r.prototype.unsortedForEach=function(t,e){this._array.forEach(t,e)},r.prototype.add=function(t){e(this._last,t)?(this._last=t,this._array.push(t)):(this._sorted=!1,this._array.push(t))},r.prototype.toArray=function(){return this._sorted||(this._array.sort(t.compareByGeneratedPositionsInflated),this._sorted=!0),this._array},exports.MappingList=r;
},{"./util":"XUQW"}],"Wwhl":[function(require,module,exports) {
var e=require("./base64-vlq"),n=require("./util"),o=require("./array-set").ArraySet,t=require("./mapping-list").MappingList;function r(e){e||(e={}),this._file=n.getArg(e,"file",null),this._sourceRoot=n.getArg(e,"sourceRoot",null),this._skipValidation=n.getArg(e,"skipValidation",!1),this._sources=new o,this._names=new o,this._mappings=new t,this._sourcesContents=null}r.prototype._version=3,r.fromSourceMap=function(e){var o=e.sourceRoot,t=new r({file:e.file,sourceRoot:o});return e.eachMapping(function(e){var r={generated:{line:e.generatedLine,column:e.generatedColumn}};null!=e.source&&(r.source=e.source,null!=o&&(r.source=n.relative(o,r.source)),r.original={line:e.originalLine,column:e.originalColumn},null!=e.name&&(r.name=e.name)),t.addMapping(r)}),e.sources.forEach(function(r){var i=r;null!==o&&(i=n.relative(o,r)),t._sources.has(i)||t._sources.add(i);var s=e.sourceContentFor(r);null!=s&&t.setSourceContent(r,s)}),t},r.prototype.addMapping=function(e){var o=n.getArg(e,"generated"),t=n.getArg(e,"original",null),r=n.getArg(e,"source",null),i=n.getArg(e,"name",null);this._skipValidation||this._validateMapping(o,t,r,i),null!=r&&(r=String(r),this._sources.has(r)||this._sources.add(r)),null!=i&&(i=String(i),this._names.has(i)||this._names.add(i)),this._mappings.add({generatedLine:o.line,generatedColumn:o.column,originalLine:null!=t&&t.line,originalColumn:null!=t&&t.column,source:r,name:i})},r.prototype.setSourceContent=function(e,o){var t=e;null!=this._sourceRoot&&(t=n.relative(this._sourceRoot,t)),null!=o?(this._sourcesContents||(this._sourcesContents=Object.create(null)),this._sourcesContents[n.toSetString(t)]=o):this._sourcesContents&&(delete this._sourcesContents[n.toSetString(t)],0===Object.keys(this._sourcesContents).length&&(this._sourcesContents=null))},r.prototype.applySourceMap=function(e,t,r){var i=t;if(null==t){if(null==e.file)throw new Error('SourceMapGenerator.prototype.applySourceMap requires either an explicit source file, or the source map\'s "file" property. Both were omitted.');i=e.file}var s=this._sourceRoot;null!=s&&(i=n.relative(s,i));var l=new o,u=new o;this._mappings.unsortedForEach(function(o){if(o.source===i&&null!=o.originalLine){var t=e.originalPositionFor({line:o.originalLine,column:o.originalColumn});null!=t.source&&(o.source=t.source,null!=r&&(o.source=n.join(r,o.source)),null!=s&&(o.source=n.relative(s,o.source)),o.originalLine=t.line,o.originalColumn=t.column,null!=t.name&&(o.name=t.name))}var a=o.source;null==a||l.has(a)||l.add(a);var c=o.name;null==c||u.has(c)||u.add(c)},this),this._sources=l,this._names=u,e.sources.forEach(function(o){var t=e.sourceContentFor(o);null!=t&&(null!=r&&(o=n.join(r,o)),null!=s&&(o=n.relative(s,o)),this.setSourceContent(o,t))},this)},r.prototype._validateMapping=function(e,n,o,t){if(n&&"number"!=typeof n.line&&"number"!=typeof n.column)throw new Error("original.line and original.column are not numbers -- you probably meant to omit the original mapping entirely and only map the generated position. If so, pass null for the original mapping instead of an object with empty or null values.");if((!(e&&"line"in e&&"column"in e&&e.line>0&&e.column>=0)||n||o||t)&&!(e&&"line"in e&&"column"in e&&n&&"line"in n&&"column"in n&&e.line>0&&e.column>=0&&n.line>0&&n.column>=0&&o))throw new Error("Invalid mapping: "+JSON.stringify({generated:e,source:o,original:n,name:t}))},r.prototype._serializeMappings=function(){for(var o,t,r,i,s=0,l=1,u=0,a=0,c=0,p=0,g="",h=this._mappings.toArray(),m=0,f=h.length;m<f;m++){if(o="",(t=h[m]).generatedLine!==l)for(s=0;t.generatedLine!==l;)o+=";",l++;else if(m>0){if(!n.compareByGeneratedPositionsInflated(t,h[m-1]))continue;o+=","}o+=e.encode(t.generatedColumn-s),s=t.generatedColumn,null!=t.source&&(i=this._sources.indexOf(t.source),o+=e.encode(i-p),p=i,o+=e.encode(t.originalLine-1-a),a=t.originalLine-1,o+=e.encode(t.originalColumn-u),u=t.originalColumn,null!=t.name&&(r=this._names.indexOf(t.name),o+=e.encode(r-c),c=r)),g+=o}return g},r.prototype._generateSourcesContent=function(e,o){return e.map(function(e){if(!this._sourcesContents)return null;null!=o&&(e=n.relative(o,e));var t=n.toSetString(e);return Object.prototype.hasOwnProperty.call(this._sourcesContents,t)?this._sourcesContents[t]:null},this)},r.prototype.toJSON=function(){var e={version:this._version,sources:this._sources.toArray(),names:this._names.toArray(),mappings:this._serializeMappings()};return null!=this._file&&(e.file=this._file),null!=this._sourceRoot&&(e.sourceRoot=this._sourceRoot),this._sourcesContents&&(e.sourcesContent=this._generateSourcesContent(e.sources,e.sourceRoot)),e},r.prototype.toString=function(){return JSON.stringify(this.toJSON())},exports.SourceMapGenerator=r;
},{"./base64-vlq":"iWlY","./util":"XUQW","./array-set":"dghU","./mapping-list":"AUTm"}],"rdpJ":[function(require,module,exports) {
function r(t,e,E,n,o,_){var U=Math.floor((e-t)/2)+t,s=o(E,n[U],!0);return 0===s?U:s>0?e-U>1?r(U,e,E,n,o,_):_==exports.LEAST_UPPER_BOUND?e<n.length?e:-1:U:U-t>1?r(t,U,E,n,o,_):_==exports.LEAST_UPPER_BOUND?U:t<0?-1:t}exports.GREATEST_LOWER_BOUND=1,exports.LEAST_UPPER_BOUND=2,exports.search=function(t,e,E,n){if(0===e.length)return-1;var o=r(-1,e.length,t,e,E,n||exports.GREATEST_LOWER_BOUND);if(o<0)return-1;for(;o-1>=0&&0===E(e[o],e[o-1],!0);)--o;return o};
},{}],"lFls":[function(require,module,exports) {
function n(n,r,t){var o=n[r];n[r]=n[t],n[t]=o}function r(n,r){return Math.round(n+Math.random()*(r-n))}function t(o,a,u,f){if(u<f){var i=u-1;n(o,r(u,f),f);for(var c=o[f],v=u;v<f;v++)a(o[v],c)<=0&&n(o,i+=1,v);n(o,i+1,v);var e=i+1;t(o,a,u,e-1),t(o,a,e+1,f)}}exports.quickSort=function(n,r){t(n,r,0,n.length-1)};
},{}],"fmOz":[function(require,module,exports) {
var e=require("./util"),n=require("./binary-search"),r=require("./array-set").ArraySet,t=require("./base64-vlq"),o=require("./quick-sort").quickSort;function i(n,r){var t=n;return"string"==typeof n&&(t=e.parseSourceMapInput(n)),null!=t.sections?new u(t,r):new s(t,r)}function s(n,t){var o=n;"string"==typeof n&&(o=e.parseSourceMapInput(n));var i=e.getArg(o,"version"),s=e.getArg(o,"sources"),a=e.getArg(o,"names",[]),u=e.getArg(o,"sourceRoot",null),l=e.getArg(o,"sourcesContent",null),g=e.getArg(o,"mappings"),p=e.getArg(o,"file",null);if(i!=this._version)throw new Error("Unsupported version: "+i);u&&(u=e.normalize(u)),s=s.map(String).map(e.normalize).map(function(n){return u&&e.isAbsolute(u)&&e.isAbsolute(n)?e.relative(u,n):n}),this._names=r.fromArray(a.map(String),!0),this._sources=r.fromArray(s,!0),this._absoluteSources=this._sources.toArray().map(function(n){return e.computeSourceURL(u,n,t)}),this.sourceRoot=u,this.sourcesContent=l,this._mappings=g,this._sourceMapURL=t,this.file=p}function a(){this.generatedLine=0,this.generatedColumn=0,this.source=null,this.originalLine=null,this.originalColumn=null,this.name=null}function u(n,t){var o=n;"string"==typeof n&&(o=e.parseSourceMapInput(n));var s=e.getArg(o,"version"),a=e.getArg(o,"sections");if(s!=this._version)throw new Error("Unsupported version: "+s);this._sources=new r,this._names=new r;var u={line:-1,column:0};this._sections=a.map(function(n){if(n.url)throw new Error("Support for url field in sections not implemented.");var r=e.getArg(n,"offset"),o=e.getArg(r,"line"),s=e.getArg(r,"column");if(o<u.line||o===u.line&&s<u.column)throw new Error("Section offsets must be ordered and non-overlapping.");return u=r,{generatedOffset:{generatedLine:o+1,generatedColumn:s+1},consumer:new i(e.getArg(n,"map"),t)}})}i.fromSourceMap=function(e,n){return s.fromSourceMap(e,n)},i.prototype._version=3,i.prototype.__generatedMappings=null,Object.defineProperty(i.prototype,"_generatedMappings",{configurable:!0,enumerable:!0,get:function(){return this.__generatedMappings||this._parseMappings(this._mappings,this.sourceRoot),this.__generatedMappings}}),i.prototype.__originalMappings=null,Object.defineProperty(i.prototype,"_originalMappings",{configurable:!0,enumerable:!0,get:function(){return this.__originalMappings||this._parseMappings(this._mappings,this.sourceRoot),this.__originalMappings}}),i.prototype._charIsMappingSeparator=function(e,n){var r=e.charAt(n);return";"===r||","===r},i.prototype._parseMappings=function(e,n){throw new Error("Subclasses must implement _parseMappings")},i.GENERATED_ORDER=1,i.ORIGINAL_ORDER=2,i.GREATEST_LOWER_BOUND=1,i.LEAST_UPPER_BOUND=2,i.prototype.eachMapping=function(n,r,t){var o,s=r||null;switch(t||i.GENERATED_ORDER){case i.GENERATED_ORDER:o=this._generatedMappings;break;case i.ORIGINAL_ORDER:o=this._originalMappings;break;default:throw new Error("Unknown order of iteration.")}var a=this.sourceRoot;o.map(function(n){var r=null===n.source?null:this._sources.at(n.source);return{source:r=e.computeSourceURL(a,r,this._sourceMapURL),generatedLine:n.generatedLine,generatedColumn:n.generatedColumn,originalLine:n.originalLine,originalColumn:n.originalColumn,name:null===n.name?null:this._names.at(n.name)}},this).forEach(n,s)},i.prototype.allGeneratedPositionsFor=function(r){var t=e.getArg(r,"line"),o={source:e.getArg(r,"source"),originalLine:t,originalColumn:e.getArg(r,"column",0)};if(o.source=this._findSourceIndex(o.source),o.source<0)return[];var i=[],s=this._findMapping(o,this._originalMappings,"originalLine","originalColumn",e.compareByOriginalPositions,n.LEAST_UPPER_BOUND);if(s>=0){var a=this._originalMappings[s];if(void 0===r.column)for(var u=a.originalLine;a&&a.originalLine===u;)i.push({line:e.getArg(a,"generatedLine",null),column:e.getArg(a,"generatedColumn",null),lastColumn:e.getArg(a,"lastGeneratedColumn",null)}),a=this._originalMappings[++s];else for(var l=a.originalColumn;a&&a.originalLine===t&&a.originalColumn==l;)i.push({line:e.getArg(a,"generatedLine",null),column:e.getArg(a,"generatedColumn",null),lastColumn:e.getArg(a,"lastGeneratedColumn",null)}),a=this._originalMappings[++s]}return i},exports.SourceMapConsumer=i,s.prototype=Object.create(i.prototype),s.prototype.consumer=i,s.prototype._findSourceIndex=function(n){var r,t=n;if(null!=this.sourceRoot&&(t=e.relative(this.sourceRoot,t)),this._sources.has(t))return this._sources.indexOf(t);for(r=0;r<this._absoluteSources.length;++r)if(this._absoluteSources[r]==n)return r;return-1},s.fromSourceMap=function(n,t){var i=Object.create(s.prototype),u=i._names=r.fromArray(n._names.toArray(),!0),l=i._sources=r.fromArray(n._sources.toArray(),!0);i.sourceRoot=n._sourceRoot,i.sourcesContent=n._generateSourcesContent(i._sources.toArray(),i.sourceRoot),i.file=n._file,i._sourceMapURL=t,i._absoluteSources=i._sources.toArray().map(function(n){return e.computeSourceURL(i.sourceRoot,n,t)});for(var g=n._mappings.toArray().slice(),p=i.__generatedMappings=[],c=i.__originalMappings=[],h=0,m=g.length;h<m;h++){var f=g[h],_=new a;_.generatedLine=f.generatedLine,_.generatedColumn=f.generatedColumn,f.source&&(_.source=l.indexOf(f.source),_.originalLine=f.originalLine,_.originalColumn=f.originalColumn,f.name&&(_.name=u.indexOf(f.name)),c.push(_)),p.push(_)}return o(i.__originalMappings,e.compareByOriginalPositions),i},s.prototype._version=3,Object.defineProperty(s.prototype,"sources",{get:function(){return this._absoluteSources.slice()}}),s.prototype._parseMappings=function(n,r){for(var i,s,u,l,g,p=1,c=0,h=0,m=0,f=0,_=0,d=n.length,C=0,A={},L={},v=[],y=[];C<d;)if(";"===n.charAt(C))p++,C++,c=0;else if(","===n.charAt(C))C++;else{for((i=new a).generatedLine=p,l=C;l<d&&!this._charIsMappingSeparator(n,l);l++);if(u=A[s=n.slice(C,l)])C+=s.length;else{for(u=[];C<l;)t.decode(n,C,L),g=L.value,C=L.rest,u.push(g);if(2===u.length)throw new Error("Found a source, but no line and column");if(3===u.length)throw new Error("Found a source and line, but no column");A[s]=u}i.generatedColumn=c+u[0],c=i.generatedColumn,u.length>1&&(i.source=f+u[1],f+=u[1],i.originalLine=h+u[2],h=i.originalLine,i.originalLine+=1,i.originalColumn=m+u[3],m=i.originalColumn,u.length>4&&(i.name=_+u[4],_+=u[4])),y.push(i),"number"==typeof i.originalLine&&v.push(i)}o(y,e.compareByGeneratedPositionsDeflated),this.__generatedMappings=y,o(v,e.compareByOriginalPositions),this.__originalMappings=v},s.prototype._findMapping=function(e,r,t,o,i,s){if(e[t]<=0)throw new TypeError("Line must be greater than or equal to 1, got "+e[t]);if(e[o]<0)throw new TypeError("Column must be greater than or equal to 0, got "+e[o]);return n.search(e,r,i,s)},s.prototype.computeColumnSpans=function(){for(var e=0;e<this._generatedMappings.length;++e){var n=this._generatedMappings[e];if(e+1<this._generatedMappings.length){var r=this._generatedMappings[e+1];if(n.generatedLine===r.generatedLine){n.lastGeneratedColumn=r.generatedColumn-1;continue}}n.lastGeneratedColumn=1/0}},s.prototype.originalPositionFor=function(n){var r={generatedLine:e.getArg(n,"line"),generatedColumn:e.getArg(n,"column")},t=this._findMapping(r,this._generatedMappings,"generatedLine","generatedColumn",e.compareByGeneratedPositionsDeflated,e.getArg(n,"bias",i.GREATEST_LOWER_BOUND));if(t>=0){var o=this._generatedMappings[t];if(o.generatedLine===r.generatedLine){var s=e.getArg(o,"source",null);null!==s&&(s=this._sources.at(s),s=e.computeSourceURL(this.sourceRoot,s,this._sourceMapURL));var a=e.getArg(o,"name",null);return null!==a&&(a=this._names.at(a)),{source:s,line:e.getArg(o,"originalLine",null),column:e.getArg(o,"originalColumn",null),name:a}}}return{source:null,line:null,column:null,name:null}},s.prototype.hasContentsOfAllSources=function(){return!!this.sourcesContent&&(this.sourcesContent.length>=this._sources.size()&&!this.sourcesContent.some(function(e){return null==e}))},s.prototype.sourceContentFor=function(n,r){if(!this.sourcesContent)return null;var t=this._findSourceIndex(n);if(t>=0)return this.sourcesContent[t];var o,i=n;if(null!=this.sourceRoot&&(i=e.relative(this.sourceRoot,i)),null!=this.sourceRoot&&(o=e.urlParse(this.sourceRoot))){var s=i.replace(/^file:\/\//,"");if("file"==o.scheme&&this._sources.has(s))return this.sourcesContent[this._sources.indexOf(s)];if((!o.path||"/"==o.path)&&this._sources.has("/"+i))return this.sourcesContent[this._sources.indexOf("/"+i)]}if(r)return null;throw new Error('"'+i+'" is not in the SourceMap.')},s.prototype.generatedPositionFor=function(n){var r=e.getArg(n,"source");if((r=this._findSourceIndex(r))<0)return{line:null,column:null,lastColumn:null};var t={source:r,originalLine:e.getArg(n,"line"),originalColumn:e.getArg(n,"column")},o=this._findMapping(t,this._originalMappings,"originalLine","originalColumn",e.compareByOriginalPositions,e.getArg(n,"bias",i.GREATEST_LOWER_BOUND));if(o>=0){var s=this._originalMappings[o];if(s.source===t.source)return{line:e.getArg(s,"generatedLine",null),column:e.getArg(s,"generatedColumn",null),lastColumn:e.getArg(s,"lastGeneratedColumn",null)}}return{line:null,column:null,lastColumn:null}},exports.BasicSourceMapConsumer=s,u.prototype=Object.create(i.prototype),u.prototype.constructor=i,u.prototype._version=3,Object.defineProperty(u.prototype,"sources",{get:function(){for(var e=[],n=0;n<this._sections.length;n++)for(var r=0;r<this._sections[n].consumer.sources.length;r++)e.push(this._sections[n].consumer.sources[r]);return e}}),u.prototype.originalPositionFor=function(r){var t={generatedLine:e.getArg(r,"line"),generatedColumn:e.getArg(r,"column")},o=n.search(t,this._sections,function(e,n){var r=e.generatedLine-n.generatedOffset.generatedLine;return r||e.generatedColumn-n.generatedOffset.generatedColumn}),i=this._sections[o];return i?i.consumer.originalPositionFor({line:t.generatedLine-(i.generatedOffset.generatedLine-1),column:t.generatedColumn-(i.generatedOffset.generatedLine===t.generatedLine?i.generatedOffset.generatedColumn-1:0),bias:r.bias}):{source:null,line:null,column:null,name:null}},u.prototype.hasContentsOfAllSources=function(){return this._sections.every(function(e){return e.consumer.hasContentsOfAllSources()})},u.prototype.sourceContentFor=function(e,n){for(var r=0;r<this._sections.length;r++){var t=this._sections[r].consumer.sourceContentFor(e,!0);if(t)return t}if(n)return null;throw new Error('"'+e+'" is not in the SourceMap.')},u.prototype.generatedPositionFor=function(n){for(var r=0;r<this._sections.length;r++){var t=this._sections[r];if(-1!==t.consumer._findSourceIndex(e.getArg(n,"source"))){var o=t.consumer.generatedPositionFor(n);if(o)return{line:o.line+(t.generatedOffset.generatedLine-1),column:o.column+(t.generatedOffset.generatedLine===o.line?t.generatedOffset.generatedColumn-1:0)}}}return{line:null,column:null}},u.prototype._parseMappings=function(n,r){this.__generatedMappings=[],this.__originalMappings=[];for(var t=0;t<this._sections.length;t++)for(var i=this._sections[t],s=i.consumer._generatedMappings,a=0;a<s.length;a++){var u=s[a],l=i.consumer._sources.at(u.source);l=e.computeSourceURL(i.consumer.sourceRoot,l,this._sourceMapURL),this._sources.add(l),l=this._sources.indexOf(l);var g=null;u.name&&(g=i.consumer._names.at(u.name),this._names.add(g),g=this._names.indexOf(g));var p={source:l,generatedLine:u.generatedLine+(i.generatedOffset.generatedLine-1),generatedColumn:u.generatedColumn+(i.generatedOffset.generatedLine===u.generatedLine?i.generatedOffset.generatedColumn-1:0),originalLine:u.originalLine,originalColumn:u.originalColumn,name:g};this.__generatedMappings.push(p),"number"==typeof p.originalLine&&this.__originalMappings.push(p)}o(this.__generatedMappings,e.compareByGeneratedPositionsDeflated),o(this.__originalMappings,e.compareByOriginalPositions)},exports.IndexedSourceMapConsumer=u;
},{"./util":"XUQW","./binary-search":"rdpJ","./array-set":"dghU","./base64-vlq":"iWlY","./quick-sort":"lFls"}],"Qm02":[function(require,module,exports) {
var n=require("./source-map-generator").SourceMapGenerator,e=require("./util"),r=/(\r?\n)/,t=10,o="$$$isSourceNode$$$";function i(n,e,r,t,i){this.children=[],this.sourceContents={},this.line=null==n?null:n,this.column=null==e?null:e,this.source=null==r?null:r,this.name=null==i?null:i,this[o]=!0,null!=t&&this.add(t)}i.fromStringWithSourceMap=function(n,t,o){var l=new i,u=n.split(r),s=0,c=function(){return n()+(n()||"");function n(){return s<u.length?u[s++]:void 0}},a=1,h=0,d=null;return t.eachMapping(function(n){if(null!==d){if(!(a<n.generatedLine)){var e=(r=u[s]||"").substr(0,n.generatedColumn-h);return u[s]=r.substr(n.generatedColumn-h),h=n.generatedColumn,p(d,e),void(d=n)}p(d,c()),a++,h=0}for(;a<n.generatedLine;)l.add(c()),a++;if(h<n.generatedColumn){var r=u[s]||"";l.add(r.substr(0,n.generatedColumn)),u[s]=r.substr(n.generatedColumn),h=n.generatedColumn}d=n},this),s<u.length&&(d&&p(d,c()),l.add(u.splice(s).join(""))),t.sources.forEach(function(n){var r=t.sourceContentFor(n);null!=r&&(null!=o&&(n=e.join(o,n)),l.setSourceContent(n,r))}),l;function p(n,r){if(null===n||void 0===n.source)l.add(r);else{var t=o?e.join(o,n.source):n.source;l.add(new i(n.originalLine,n.originalColumn,t,r,n.name))}}},i.prototype.add=function(n){if(Array.isArray(n))n.forEach(function(n){this.add(n)},this);else{if(!n[o]&&"string"!=typeof n)throw new TypeError("Expected a SourceNode, string, or an array of SourceNodes and strings. Got "+n);n&&this.children.push(n)}return this},i.prototype.prepend=function(n){if(Array.isArray(n))for(var e=n.length-1;e>=0;e--)this.prepend(n[e]);else{if(!n[o]&&"string"!=typeof n)throw new TypeError("Expected a SourceNode, string, or an array of SourceNodes and strings. Got "+n);this.children.unshift(n)}return this},i.prototype.walk=function(n){for(var e,r=0,t=this.children.length;r<t;r++)(e=this.children[r])[o]?e.walk(n):""!==e&&n(e,{source:this.source,line:this.line,column:this.column,name:this.name})},i.prototype.join=function(n){var e,r,t=this.children.length;if(t>0){for(e=[],r=0;r<t-1;r++)e.push(this.children[r]),e.push(n);e.push(this.children[r]),this.children=e}return this},i.prototype.replaceRight=function(n,e){var r=this.children[this.children.length-1];return r[o]?r.replaceRight(n,e):"string"==typeof r?this.children[this.children.length-1]=r.replace(n,e):this.children.push("".replace(n,e)),this},i.prototype.setSourceContent=function(n,r){this.sourceContents[e.toSetString(n)]=r},i.prototype.walkSourceContents=function(n){for(var r=0,t=this.children.length;r<t;r++)this.children[r][o]&&this.children[r].walkSourceContents(n);var i=Object.keys(this.sourceContents);for(r=0,t=i.length;r<t;r++)n(e.fromSetString(i[r]),this.sourceContents[i[r]])},i.prototype.toString=function(){var n="";return this.walk(function(e){n+=e}),n},i.prototype.toStringWithSourceMap=function(e){var r={code:"",line:1,column:0},o=new n(e),i=!1,l=null,u=null,s=null,c=null;return this.walk(function(n,e){r.code+=n,null!==e.source&&null!==e.line&&null!==e.column?(l===e.source&&u===e.line&&s===e.column&&c===e.name||o.addMapping({source:e.source,original:{line:e.line,column:e.column},generated:{line:r.line,column:r.column},name:e.name}),l=e.source,u=e.line,s=e.column,c=e.name,i=!0):i&&(o.addMapping({generated:{line:r.line,column:r.column}}),l=null,i=!1);for(var a=0,h=n.length;a<h;a++)n.charCodeAt(a)===t?(r.line++,r.column=0,a+1===h?(l=null,i=!1):i&&o.addMapping({source:e.source,original:{line:e.line,column:e.column},generated:{line:r.line,column:r.column},name:e.name})):r.column++}),this.walkSourceContents(function(n,e){o.setSourceContent(n,e)}),{code:r.code,map:o}},exports.SourceNode=i;
},{"./source-map-generator":"Wwhl","./util":"XUQW"}],"aRf0":[function(require,module,exports) {
exports.SourceMapGenerator=require("./lib/source-map-generator").SourceMapGenerator,exports.SourceMapConsumer=require("./lib/source-map-consumer").SourceMapConsumer,exports.SourceNode=require("./lib/source-node").SourceNode;
},{"./lib/source-map-generator":"Wwhl","./lib/source-map-consumer":"fmOz","./lib/source-node":"Qm02"}]},{},["aRf0"], null)
//# sourceMappingURL=source-map.438fa06b.js.map
\ No newline at end of file
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