{"id":39351,"date":"2023-01-16T17:50:12","date_gmt":"2022-11-03T01:33:57","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e9%98%85%e8%af%bb-angular-2-%e7%9a%84%e5%88%9d%e5%a7%8b%e5%8c%96%e5%92%8c%e7%bb%84%e4%bb%b6%e7%bc%96%e8%af%91%e6%96%b9%e9%9d%a2%e7%9a%84%e6%ba%90%e4%bb%a3%e7%a0%81%e3%80%82\/"},"modified":"2024-04-29T10:08:43","modified_gmt":"2024-04-29T02:08:43","slug":"%e9%98%85%e8%af%bb-angular-2-%e7%9a%84%e5%88%9d%e5%a7%8b%e5%8c%96%e5%92%8c%e7%bb%84%e4%bb%b6%e7%bc%96%e8%af%91%e6%96%b9%e9%9d%a2%e7%9a%84%e6%ba%90%e4%bb%a3%e7%a0%81%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e9%98%85%e8%af%bb-angular-2-%e7%9a%84%e5%88%9d%e5%a7%8b%e5%8c%96%e5%92%8c%e7%bb%84%e4%bb%b6%e7%bc%96%e8%af%91%e6%96%b9%e9%9d%a2%e7%9a%84%e6%ba%90%e4%bb%a3%e7%a0%81%e3%80%82\/","title":{"rendered":"\u9605\u8bfb Angular 2 \u7684\u521d\u59cb\u5316\u548c\u7ec4\u4ef6\u7f16\u8bd1\u65b9\u9762\u7684\u6e90\u4ee3\u7801"},"content":{"rendered":"<p>\u5728\u5e74\u5e95\u7684\u6d3b\u52a8\u4e2d\uff0c\u6211\u6709\u51e0\u6b21\u4ecb\u7ecd\u4e86Angular 2\u7684\u5185\u5bb9\uff0c\u4f46\u662f\u6211\u53d1\u73b0\u81ea\u5df1\u4e00\u8fb9\u8bf4\u7740\u4e00\u8fb9\u5e76\u6ca1\u6709\u5f88\u597d\u5730\u7406\u89e3\u3002\u6211\u4e00\u76f4\u60f3\u5728\u6709\u65f6\u95f4\u7684\u65f6\u5019\u597d\u597d\u5730\u7406\u89e3\u5b83\uff01\u4e3a\u4e86\u7406\u89e3\u5b83\uff0c\u53ea\u80fd\u9605\u8bfb\u6e90\u4ee3\u7801\u4e86\uff01\u6240\u4ee5\u6211\u6253\u7b97\u8bfb\u4e00\u4e0bAngular 2\u7684\u6e90\u4ee3\u7801\u3002<\/p>\n<p>\u7531\u65bc\u4f7f\u7528\u65b9\u6cd5\u5728\u5b98\u65b9\u6587\u4ef6\u4ee5\u53ca\u5176\u4ed6\u5730\u65b9\u90fd\u6709\u8a73\u7d30\u4ecb\u7d39\uff0c\u6240\u4ee5\u6211\u5011\u5c07\u5c08\u6ce8\u65bc\u5167\u90e8\u7d50\u69cb\u7684\u7814\u7a76\u3002\u7531 @laco0416 \u8ca0\u8cac\u8655\u7406 Change Detection \u548c Dependency Injection \u76f8\u95dc\u7684\u90e8\u5206\/\u5c07\u572812\/23\u5b8c\u6210\uff0c\u6240\u4ee5\u6211\u60f3\u5617\u8a66\u89e3\u6c7a\u521d\u59cb\u5316\u548cComponent\u7de8\u8b6f\u7684\u554f\u984c\u3002<\/p>\n<p>\u5728 AngularConnect \u7684\u4e3b\u9898\u6f14\u8bb2\u4e2d\uff0c\u6709\u4eba\u63d0\u5230\u5728 Angular 1 \u4e2d\uff0cHTML \u7684\u7f16\u8bd1\u5728\u8fd0\u884c\u65f6\u7ecf\u5e38\u88ab\u6267\u884c\uff0c\u4f46\u662f\u5728 Angular 2 \u4e2d\uff0c\u5b83\u53ea\u4f1a\u5728\u521d\u59cb\u5316\u65f6\u6267\u884c\u4e00\u6b21\uff0c\u8fd9\u4fc3\u8fdb\u4e86\u901f\u5ea6\u7684\u63d0\u5347\u3002\u6211\u5bf9\u8fd9\u65b9\u9762\u7684\u5b9e\u9645\u60c5\u51b5\u5f88\u611f\u5174\u8da3\u3002<\/p>\n<p>\u7248\u672c\u662fbeta.0\u521a\u53d1\u5e03\u540e\u76842a2f9a9a196cf1502c3002f14bd42b13a4dcaa53\u3002\u57fa\u672c\u4e0a\u53ef\u4ee5\u8ba4\u4e3a\u662f\u4e0e\u4f5c\u4e3abeta.0\u53d1\u5e03\u7684\u7248\u672c\u76f8\u540c\u3002<\/p>\n<h2>\u7b80\u800c\u8a00\u4e4b<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Angular 2 \u306f\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3054\u3068\u306b\u69d8\u3005\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u5207\u308a\u66ff\u3048\u3089\u308c\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Component \u306e\u30b3\u30f3\u30d1\u30a4\u30eb\u306e\u7d50\u679c\u3001\u8907\u6570\u306e Command \u304c\u3067\u304d\u308b\u3002\u753b\u9762\u3092\u63cf\u753b\u3059\u308b\u305f\u3081\u306e\u547d\u4ee4\u7fa4\u306e\u3088\u3046\u306a\u3082\u306e\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">RuntimeCompiler \u304c\u30c8\u30c3\u30d7\u30ec\u30d9\u30eb Component \u578b\u3092 DOM \u95a2\u4fc2\u306a\u304f\u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u3066 ProtoViewRef \u3092\u8fd4\u3059\u3002View \u3092\u4f5c\u308b\u305f\u3081\u306e\u96db\u5f62\u306e\u3088\u3046\u306a\u3082\u306e\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">AppViewManagaer \u304c ProtoViewRef\uff08\u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u305f Component \u306e\u30e1\u30bf\u60c5\u5831\uff09\u3092\u3082\u3068\u306b Component \u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u308a\u3001DOM\u8981\u7d20\u306b\u7d10\u4ed8\u3051\u308b\u3002<\/ul>\n<h2>\u5728\u9605\u8bfb\u8d44\u6599\u4e4b\u524d<\/h2>\n<p>\u9996\u5148\uff0cAngular 2\u7684\u4ee3\u7801\u5e93\u4f4d\u4e8eGitHub\u7684angular\/angular\u5b58\u50a8\u5e93\u4e2d\u3002\u5176\u4e2d\u7684modules\u76ee\u5f55\u5305\u542b\u4e86\u4e00\u4e9b\u9879\u76ee\uff0c\u5982angular2_material\u7b49\u3002\u4e3b\u8981\u7684\u6e90\u4ee3\u7801\u4f4d\u4e8emodules\/angular2\u4e2d\u3002<\/p>\n<p>\u5728\u975e\u672c\u4f53\u6e90\u4ee3\u7801\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 modules\/playground \u7684\u793a\u4f8b\u548c modules\/angular2\/src\/test\u3002\u4e24\u8005\u90fd\u5341\u5206\u4e30\u5bcc\uff0c\u56e0\u6b64\u53ef\u4ee5\u7406\u89e3\u6e90\u4ee3\u7801\u662f\u56f0\u96be\u7684\uff0c\u53ef\u4ee5\u67e5\u770b\u8be6\u7ec6\u7684\u7528\u6cd5\u548c\u89c4\u8303\u3002playground \u4e2d\u7684 HTML \u4e2d\u5305\u542b\u7279\u6b8a\u5b57\u7b26\uff0c\u5982 $SCRIPTS$\uff0c\u5728\u6784\u5efa\u65f6\u4f1a\u88ab\u586b\u5145\u3002\u5982\u679c\u4e0d\u7406\u89e3\uff0c\u8bf7\u68c0\u51fa angular\/angular \u5e76\u5c1d\u8bd5\u6784\u5efa\u3002\u8bf7\u6ce8\u610f\uff0cangular\/angular \u53ea\u517c\u5bb9 Node 4 \u548c npm 2 \u7cfb\u5217\u3002<\/p>\n<p>\u6211\u4f7f\u7528 Visual Studio Code \u9605\u8bfb\u6e90\u4ee3\u7801\u3002\u5229\u7528 TypeScript \u7684\u7c7b\u578b\u4fe1\u606f\u53ef\u4ee5\u8df3\u8f6c\u5230\u5b9a\u4e49\u5904\uff0c\u8fd8\u53ef\u4ee5\u641c\u7d22\u5f15\u7528\uff0c\u975e\u5e38\u65b9\u4fbf\u3002<\/p>\n<h2>\u5c1d\u8bd5\u9605\u8bfb Bootstrap\u3002<\/h2>\n<p>\u6211\u4eec\u4ece\u521d\u59cb\u5316\u5e94\u7528\u7a0b\u5e8f\u5f00\u59cb\uff0c\u4ee5\u4e0b\u8def\u5f84\u90fd\u662f\u5728modules\u76ee\u5f55\u4e0b\u8ba8\u8bba\u7684\u3002\u8ba9\u6211\u4eec\u6765\u770b\u4e00\u4e0b\u5177\u6709\u6d4f\u89c8\u5668\u542f\u52a8\u7684angular2\/platform\/browser.ts\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">export<\/span> <span class=\"kd\">function<\/span> <span class=\"nx\">bootstrap<\/span><span class=\"p\">(<\/span>\r\n    <span class=\"nx\">appComponentType<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Type<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"nx\">customProviders<\/span><span class=\"p\">?:<\/span> <span class=\"nb\">Array<\/span><span class=\"o\">&lt;<\/span><span class=\"kr\">any<\/span> <span class=\"cm\">\/*Type | Provider | any[]*\/<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">):<\/span> <span class=\"nb\">Promise<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">ComponentRef<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">reflector<\/span><span class=\"p\">.<\/span><span class=\"nx\">reflectionCapabilities<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">ReflectionCapabilities<\/span><span class=\"p\">();<\/span>\r\n  <span class=\"kd\">let<\/span> <span class=\"nx\">appProviders<\/span> <span class=\"o\">=<\/span>\r\n      <span class=\"nx\">isPresent<\/span><span class=\"p\">(<\/span><span class=\"nx\">customProviders<\/span><span class=\"p\">)<\/span> <span class=\"p\">?<\/span> <span class=\"p\">[<\/span><span class=\"nx\">BROWSER_APP_PROVIDERS<\/span><span class=\"p\">,<\/span> <span class=\"nx\">customProviders<\/span><span class=\"p\">]<\/span> <span class=\"p\">:<\/span> <span class=\"nx\">BROWSER_APP_PROVIDERS<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"k\">return<\/span> <span class=\"nx\">platform<\/span><span class=\"p\">(<\/span><span class=\"nx\">BROWSER_PROVIDERS<\/span><span class=\"p\">).<\/span><span class=\"nx\">application<\/span><span class=\"p\">(<\/span><span class=\"nx\">appProviders<\/span><span class=\"p\">).<\/span><span class=\"nx\">bootstrap<\/span><span class=\"p\">(<\/span><span class=\"nx\">appComponentType<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5728 bootstrap \u4e2d\uff0c\u6211\u4eec\u4f20\u9012\u4e00\u4e2a\u9876\u5c42\u7ec4\u4ef6\u7684\u7c7b\u578b\u4ee5\u53ca\uff08\u5982\u679c\u9700\u8981\u7684\u8bdd\uff09\u81ea\u5b9a\u4e49\u7684\u63d0\u4f9b\u7a0b\u5e8f\u3002\u4ee5\u4e0b\u662f\u5904\u7406\u6d41\u7a0b\u7684\u793a\u4f8b\u3002<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u5e73\u53f0\uff1a\u901a\u8fc7BROWSER_PROVIDERS\u521b\u5efaPlatformRef\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>PlatformRef\uff03application\uff1a\u4f7f\u7528BROWSER_APP_PROVIDERS\u52a0\u4e0a\u81ea\u5b9a\u4e49\u7684providers\u521b\u5efaApplicationRef\u3002<\/p>\n<p>ApplicationRef\uff03bootstrap\uff1a\u4f20\u9012\u9876\u5c42Component\u7684\u7c7b\u578b\u6765\u542f\u52a8\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n<p>\u6211\u4eec\u6765\u770b\u4e00\u4e0b\u8fd9\u4e9b\u65b9\u6cd5\u3002<\/p>\n<p>\u987a\u4fbf\u63d0\u4e00\u4e0b\uff0cBROWSER_PROVIDERS \u662f\u4e00\u4e2a\u52a0\u5165\u4e86\u5bf9 DOM \u9002\u914d\u5668\u521d\u59cb\u5316\u5904\u7406\u7684\u5e73\u53f0\u5171\u6709\u63d0\u4f9b\u7a0b\u5e8f\u7684\u6a21\u5f0f\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"cm\">\/**\r\n * A set of providers to initialize the Angular platform in a web browser.\r\n *\r\n * Used automatically by `bootstrap`, or can be passed to {@link platform}.\r\n *\/<\/span>\r\n<span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">BROWSER_PROVIDERS<\/span><span class=\"p\">:<\/span> <span class=\"nb\">Array<\/span><span class=\"o\">&lt;<\/span><span class=\"kr\">any<\/span> <span class=\"cm\">\/*Type | Provider | any[]*\/<\/span><span class=\"o\">&gt;<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">CONST_EXPR<\/span><span class=\"p\">([<\/span>\r\n  <span class=\"nx\">PLATFORM_COMMON_PROVIDERS<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"k\">new<\/span> <span class=\"nx\">Provider<\/span><span class=\"p\">(<\/span><span class=\"nx\">PLATFORM_INITIALIZER<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"na\">useValue<\/span><span class=\"p\">:<\/span> <span class=\"nx\">initDomAdapter<\/span><span class=\"p\">,<\/span> <span class=\"na\">multi<\/span><span class=\"p\">:<\/span> <span class=\"kc\">true<\/span><span class=\"p\">}),<\/span>\r\n<span class=\"p\">]);<\/span>\r\n<\/code><\/pre>\n<h2>\u5e73\u53f0<\/h2>\n<p>\u5f53\u8ffd\u6eafimport\/export\u65f6\uff0c\u6211\u4eec\u53d1\u73b0\u5e73\u53f0(platform)\u4f4d\u4e8eangular2\/src\/core\/application_ref.ts\u6587\u4ef6\u4e2d\u3002\u987a\u4fbf\u63d0\u4e00\u4e0b\uff0c\u5e73\u53f0\u7684\u53c2\u6570\u662fBROWSER_PROVIDERS\u3002\u7b80\u800c\u8a00\u4e4b\uff0c\u53ea\u662f\u8c03\u7528\u4e86_createPlatform\u51fd\u6570\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">function<\/span> <span class=\"nx\">_createPlatform<\/span><span class=\"p\">(<\/span><span class=\"nx\">providers<\/span><span class=\"p\">?:<\/span> <span class=\"nb\">Array<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">Type<\/span> <span class=\"o\">|<\/span> <span class=\"nx\">Provider<\/span> <span class=\"o\">|<\/span> <span class=\"kr\">any<\/span><span class=\"p\">[]<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">):<\/span> <span class=\"nx\">PlatformRef<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">_platformProviders<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">providers<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"kd\">let<\/span> <span class=\"nx\">injector<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">Injector<\/span><span class=\"p\">.<\/span><span class=\"nx\">resolveAndCreate<\/span><span class=\"p\">(<\/span><span class=\"nx\">providers<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"nx\">_platform<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">PlatformRef_<\/span><span class=\"p\">(<\/span><span class=\"nx\">injector<\/span><span class=\"p\">,<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nx\">_platform<\/span> <span class=\"o\">=<\/span> <span class=\"kc\">null<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"nx\">_platformProviders<\/span> <span class=\"o\">=<\/span> <span class=\"kc\">null<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"p\">});<\/span>\r\n  <span class=\"nx\">_runPlatformInitializers<\/span><span class=\"p\">(<\/span><span class=\"nx\">injector<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"k\">return<\/span> <span class=\"nx\">_platform<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u521b\u5efa\u4e00\u4e2a\u65b0\u7684 Injector\uff0c\u4f7f\u7528\u5b83\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3a PlatformRef_ \u7684\u4e1c\u897f\uff0c\u5728\u6267\u884c\u6bcf\u4e2a\u5e73\u53f0\u7684\u521d\u59cb\u5316\u5904\u7406\u540e\uff0c\u8fd4\u56de PlatformRef_\u3002<\/p>\n<h2>\u5e73\u53f0\u53c2\u8003_<\/h2>\n<p>\u8ba9\u6211\u4eec\u6765\u770b\u770b PlatformRef_\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">constructor<\/span><span class=\"p\">(<\/span><span class=\"k\">private<\/span> <span class=\"nx\">_injector<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Injector<\/span><span class=\"p\">,<\/span> <span class=\"k\">private<\/span> <span class=\"nx\">_dispose<\/span><span class=\"p\">:<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"k\">void<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span> <span class=\"k\">super<\/span><span class=\"p\">();<\/span> <span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u60a8\u53ea\u662f\u5c06\u53c2\u6570\u4f5c\u4e3a\u6210\u5458\u53d8\u91cf\u4fdd\u5b58\u4e0b\u6765\u3002\u7b2c\u4e8c\u4e2a\u53c2\u6570\u4f3c\u4e4e\u662f\u6307\u5e94\u7528\u7a0b\u5e8f\u5173\u95ed\u65f6\u7684\u5904\u7406\u3002<\/p>\n<h2>\u5e73\u53f0\u5f15\u7528_#\u5f15\u5bfc\u7a0b\u5e8f.<\/h2>\n<p>\u8ba9\u6211\u4eec\u6765\u770b\u4e00\u4e0b\u5728bootstrap\u4e2d\u88ab\u8c03\u7528\u7684application\u65b9\u6cd5\u3002\u8fd9\u91cc\u63d0\u5230\u7684providers\u662f\u6307BROWSER_APP_PROVIDERS\u548c\u81ea\u5b9a\u4e49providers\u7684\u7ec4\u5408\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nx\">application<\/span><span class=\"p\">(<\/span><span class=\"nx\">providers<\/span><span class=\"p\">:<\/span> <span class=\"nb\">Array<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">Type<\/span> <span class=\"o\">|<\/span> <span class=\"nx\">Provider<\/span> <span class=\"o\">|<\/span> <span class=\"kr\">any<\/span><span class=\"p\">[]<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">):<\/span> <span class=\"nx\">ApplicationRef<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"kd\">var<\/span> <span class=\"nx\">app<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_initApp<\/span><span class=\"p\">(<\/span><span class=\"nx\">createNgZone<\/span><span class=\"p\">(),<\/span> <span class=\"nx\">providers<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"k\">return<\/span> <span class=\"nx\">app<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u521b\u5efa\u4e86\u4e00\u4e2aNgZone\uff0c\u5e76\u5c06\u5176\u4f20\u9012\u7ed9_initApp\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">private<\/span> <span class=\"nx\">_initApp<\/span><span class=\"p\">(<\/span><span class=\"nx\">zone<\/span><span class=\"p\">:<\/span> <span class=\"nx\">NgZone<\/span><span class=\"p\">,<\/span> <span class=\"nx\">providers<\/span><span class=\"p\">:<\/span> <span class=\"nb\">Array<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">Type<\/span> <span class=\"o\">|<\/span> <span class=\"nx\">Provider<\/span> <span class=\"o\">|<\/span> <span class=\"kr\">any<\/span><span class=\"p\">[]<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">):<\/span> <span class=\"nx\">ApplicationRef<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"kd\">var<\/span> <span class=\"nx\">injector<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Injector<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"kd\">var<\/span> <span class=\"nx\">app<\/span><span class=\"p\">:<\/span> <span class=\"nx\">ApplicationRef<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"nx\">zone<\/span><span class=\"p\">.<\/span><span class=\"nx\">run<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nx\">providers<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">ListWrapper<\/span><span class=\"p\">.<\/span><span class=\"nx\">concat<\/span><span class=\"p\">(<\/span><span class=\"nx\">providers<\/span><span class=\"p\">,<\/span> <span class=\"p\">[<\/span>\r\n      <span class=\"nx\">provide<\/span><span class=\"p\">(<\/span><span class=\"nx\">NgZone<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"na\">useValue<\/span><span class=\"p\">:<\/span> <span class=\"nx\">zone<\/span><span class=\"p\">}),<\/span>\r\n      <span class=\"nx\">provide<\/span><span class=\"p\">(<\/span><span class=\"nx\">ApplicationRef<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"na\">useFactory<\/span><span class=\"p\">:<\/span> <span class=\"p\">():<\/span> <span class=\"nx\">ApplicationRef<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">app<\/span><span class=\"p\">,<\/span> <span class=\"na\">deps<\/span><span class=\"p\">:<\/span> <span class=\"p\">[]})<\/span>\r\n    <span class=\"p\">]);<\/span>\r\n\r\n\r\n    <span class=\"kd\">var<\/span> <span class=\"nx\">exceptionHandler<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"k\">try<\/span> <span class=\"p\">{<\/span>\r\n      <span class=\"nx\">injector<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">injector<\/span><span class=\"p\">.<\/span><span class=\"nx\">resolveAndCreateChild<\/span><span class=\"p\">(<\/span><span class=\"nx\">providers<\/span><span class=\"p\">);<\/span>\r\n      <span class=\"nx\">exceptionHandler<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">injector<\/span><span class=\"p\">.<\/span><span class=\"kd\">get<\/span><span class=\"p\">(<\/span><span class=\"nx\">ExceptionHandler<\/span><span class=\"p\">);<\/span>\r\n      <span class=\"nx\">zone<\/span><span class=\"p\">.<\/span><span class=\"nx\">overrideOnErrorHandler<\/span><span class=\"p\">((<\/span><span class=\"nx\">e<\/span><span class=\"p\">,<\/span> <span class=\"nx\">s<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">exceptionHandler<\/span><span class=\"p\">.<\/span><span class=\"nx\">call<\/span><span class=\"p\">(<\/span><span class=\"nx\">e<\/span><span class=\"p\">,<\/span> <span class=\"nx\">s<\/span><span class=\"p\">));<\/span>\r\n    <span class=\"p\">}<\/span> <span class=\"k\">catch<\/span> <span class=\"p\">(<\/span><span class=\"nx\">e<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n      <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">isPresent<\/span><span class=\"p\">(<\/span><span class=\"nx\">exceptionHandler<\/span><span class=\"p\">))<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"nx\">exceptionHandler<\/span><span class=\"p\">.<\/span><span class=\"nx\">call<\/span><span class=\"p\">(<\/span><span class=\"nx\">e<\/span><span class=\"p\">,<\/span> <span class=\"nx\">e<\/span><span class=\"p\">.<\/span><span class=\"nx\">stack<\/span><span class=\"p\">);<\/span>\r\n      <span class=\"p\">}<\/span> <span class=\"k\">else<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"nx\">print<\/span><span class=\"p\">(<\/span><span class=\"nx\">e<\/span><span class=\"p\">.<\/span><span class=\"nx\">toString<\/span><span class=\"p\">());<\/span>\r\n      <span class=\"p\">}<\/span>\r\n    <span class=\"p\">}<\/span>\r\n  <span class=\"p\">});<\/span>\r\n  <span class=\"nx\">app<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">ApplicationRef_<\/span><span class=\"p\">(<\/span><span class=\"k\">this<\/span><span class=\"p\">,<\/span> <span class=\"nx\">zone<\/span><span class=\"p\">,<\/span> <span class=\"nx\">injector<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_applications<\/span><span class=\"p\">.<\/span><span class=\"nx\">push<\/span><span class=\"p\">(<\/span><span class=\"nx\">app<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"nx\">_runAppInitializers<\/span><span class=\"p\">(<\/span><span class=\"nx\">injector<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"k\">return<\/span> <span class=\"nx\">app<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u6784\u5efa\u548c\u8fd4\u56de ApplicationRef \u65f6\uff0c\u53ef\u4ee5\u770b\u5230\u5b83\u7ee7\u627f\u4e86\u5305\u542b BROWSER_PROVIDERS \u7684\u6ce8\u5165\u5668\uff0c\u5e76\u6dfb\u52a0\u4e86 BROWSER_APP_PROVIDERS + \u81ea\u5b9a\u4e49 providers \uff0c\u4ece\u800c\u521b\u5efa\u4e86\u4e00\u4e2a\u5b50\u6ce8\u5165\u5668\u3002<\/p>\n<p>NgZone#run\u662f\u4ec0\u4e48\uff1f<\/p>\n<h3>\u6d4f\u89c8\u5668\u5e94\u7528\u7a0b\u5e8f\u4f9b\u5e94\u5546<\/h3>\n<p>\u987a\u4fbf\u63d0\u4e00\u4e0b\uff0cBROWSER_APP_PROVIDERS \u662f\u5728\u6d4f\u89c8\u5668\u4e0a\u8fd0\u884c\u7684\u5e94\u7528\u7a0b\u5e8f\u6240\u9700\u63d0\u4f9b\u8005\u7684\u6a21\u6837\u3002BROWSER_APP_COMMON_PROVIDERS \u548c COMPILER_PROVIDERS \u7684\u5206\u79bb\u662f\u4e3a\u4e86\u79bb\u7ebf\u7f16\u8bd1\u94fa\u8bbe\u57fa\u7840\uff1f<\/p>\n<pre class=\"post-pre\"><code><span class=\"cm\">\/**\r\n * An array of providers that should be passed into `application()` when bootstrapping a component.\r\n *\/<\/span>\r\n<span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">BROWSER_APP_PROVIDERS<\/span><span class=\"p\">:<\/span> <span class=\"nb\">Array<\/span><span class=\"o\">&lt;<\/span><span class=\"kr\">any<\/span> <span class=\"cm\">\/*Type | Provider | any[]*\/<\/span><span class=\"o\">&gt;<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">CONST_EXPR<\/span><span class=\"p\">([<\/span>\r\n  <span class=\"nx\">BROWSER_APP_COMMON_PROVIDERS<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nx\">COMPILER_PROVIDERS<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"k\">new<\/span> <span class=\"nx\">Provider<\/span><span class=\"p\">(<\/span><span class=\"nx\">XHR<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"na\">useClass<\/span><span class=\"p\">:<\/span> <span class=\"nx\">XHRImpl<\/span><span class=\"p\">}),<\/span>\r\n<span class=\"p\">]);<\/span>\r\n<\/code><\/pre>\n<p>BROWSER_APP_COMMON_PROVIDERS \u7684\u5185\u5bb9\u5982\u4e0b\u6240\u793a\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"cm\">\/**\r\n * A set of providers to initialize an Angular application in a web browser.\r\n *\r\n * Used automatically by `bootstrap`, or can be passed to {@link PlatformRef.application}.\r\n *\/<\/span>\r\n<span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">BROWSER_APP_COMMON_PROVIDERS<\/span><span class=\"p\">:<\/span> <span class=\"nb\">Array<\/span><span class=\"o\">&lt;<\/span><span class=\"kr\">any<\/span> <span class=\"cm\">\/*Type | Provider | any[]*\/<\/span><span class=\"o\">&gt;<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">CONST_EXPR<\/span><span class=\"p\">([<\/span>\r\n  <span class=\"nx\">APPLICATION_COMMON_PROVIDERS<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nx\">FORM_PROVIDERS<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"k\">new<\/span> <span class=\"nx\">Provider<\/span><span class=\"p\">(<\/span><span class=\"nx\">PLATFORM_PIPES<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"na\">useValue<\/span><span class=\"p\">:<\/span> <span class=\"nx\">COMMON_PIPES<\/span><span class=\"p\">,<\/span> <span class=\"na\">multi<\/span><span class=\"p\">:<\/span> <span class=\"kc\">true<\/span><span class=\"p\">}),<\/span>\r\n  <span class=\"k\">new<\/span> <span class=\"nx\">Provider<\/span><span class=\"p\">(<\/span><span class=\"nx\">PLATFORM_DIRECTIVES<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"na\">useValue<\/span><span class=\"p\">:<\/span> <span class=\"nx\">COMMON_DIRECTIVES<\/span><span class=\"p\">,<\/span> <span class=\"na\">multi<\/span><span class=\"p\">:<\/span> <span class=\"kc\">true<\/span><span class=\"p\">}),<\/span>\r\n  <span class=\"k\">new<\/span> <span class=\"nx\">Provider<\/span><span class=\"p\">(<\/span><span class=\"nx\">ExceptionHandler<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"na\">useFactory<\/span><span class=\"p\">:<\/span> <span class=\"nx\">_exceptionHandler<\/span><span class=\"p\">,<\/span> <span class=\"na\">deps<\/span><span class=\"p\">:<\/span> <span class=\"p\">[]}),<\/span>\r\n  <span class=\"k\">new<\/span> <span class=\"nx\">Provider<\/span><span class=\"p\">(<\/span><span class=\"nx\">DOCUMENT<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"na\">useFactory<\/span><span class=\"p\">:<\/span> <span class=\"nx\">_document<\/span><span class=\"p\">,<\/span> <span class=\"na\">deps<\/span><span class=\"p\">:<\/span> <span class=\"p\">[]}),<\/span>\r\n  <span class=\"k\">new<\/span> <span class=\"nx\">Provider<\/span><span class=\"p\">(<\/span><span class=\"nx\">EVENT_MANAGER_PLUGINS<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"na\">useClass<\/span><span class=\"p\">:<\/span> <span class=\"nx\">DomEventsPlugin<\/span><span class=\"p\">,<\/span> <span class=\"na\">multi<\/span><span class=\"p\">:<\/span> <span class=\"kc\">true<\/span><span class=\"p\">}),<\/span>\r\n  <span class=\"k\">new<\/span> <span class=\"nx\">Provider<\/span><span class=\"p\">(<\/span><span class=\"nx\">EVENT_MANAGER_PLUGINS<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"na\">useClass<\/span><span class=\"p\">:<\/span> <span class=\"nx\">KeyEventsPlugin<\/span><span class=\"p\">,<\/span> <span class=\"na\">multi<\/span><span class=\"p\">:<\/span> <span class=\"kc\">true<\/span><span class=\"p\">}),<\/span>\r\n  <span class=\"k\">new<\/span> <span class=\"nx\">Provider<\/span><span class=\"p\">(<\/span><span class=\"nx\">EVENT_MANAGER_PLUGINS<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"na\">useClass<\/span><span class=\"p\">:<\/span> <span class=\"nx\">HammerGesturesPlugin<\/span><span class=\"p\">,<\/span> <span class=\"na\">multi<\/span><span class=\"p\">:<\/span> <span class=\"kc\">true<\/span><span class=\"p\">}),<\/span>\r\n  <span class=\"k\">new<\/span> <span class=\"nx\">Provider<\/span><span class=\"p\">(<\/span><span class=\"nx\">DomRenderer<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"na\">useClass<\/span><span class=\"p\">:<\/span> <span class=\"nx\">DomRenderer_<\/span><span class=\"p\">}),<\/span>\r\n  <span class=\"k\">new<\/span> <span class=\"nx\">Provider<\/span><span class=\"p\">(<\/span><span class=\"nx\">Renderer<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"na\">useExisting<\/span><span class=\"p\">:<\/span> <span class=\"nx\">DomRenderer<\/span><span class=\"p\">}),<\/span>\r\n  <span class=\"k\">new<\/span> <span class=\"nx\">Provider<\/span><span class=\"p\">(<\/span><span class=\"nx\">SharedStylesHost<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"na\">useExisting<\/span><span class=\"p\">:<\/span> <span class=\"nx\">DomSharedStylesHost<\/span><span class=\"p\">}),<\/span>\r\n  <span class=\"nx\">DomSharedStylesHost<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nx\">Testability<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nx\">BrowserDetails<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nx\">AnimationBuilder<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nx\">EventManager<\/span>\r\n<span class=\"p\">]);<\/span>\r\n<\/code><\/pre>\n<h2>\u5e94\u7528\u53c2\u8003<\/h2>\n<p>\u6211\u4eec\u73b0\u5728\u6765\u770b\u4e00\u4e0b ApplicationRef_\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">constructor<\/span><span class=\"p\">(<\/span><span class=\"k\">private<\/span> <span class=\"nx\">_platform<\/span><span class=\"p\">:<\/span> <span class=\"nx\">PlatformRef_<\/span><span class=\"p\">,<\/span> <span class=\"k\">private<\/span> <span class=\"nx\">_zone<\/span><span class=\"p\">:<\/span> <span class=\"nx\">NgZone<\/span><span class=\"p\">,<\/span> <span class=\"k\">private<\/span> <span class=\"nx\">_injector<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Injector<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"k\">super<\/span><span class=\"p\">();<\/span>\r\n  <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">isPresent<\/span><span class=\"p\">(<\/span><span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_zone<\/span><span class=\"p\">))<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nx\">ObservableWrapper<\/span><span class=\"p\">.<\/span><span class=\"nx\">subscribe<\/span><span class=\"p\">(<\/span><span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_zone<\/span><span class=\"p\">.<\/span><span class=\"nx\">onTurnDone<\/span><span class=\"p\">,<\/span>\r\n                                <span class=\"p\">(<\/span><span class=\"nx\">_<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_zone<\/span><span class=\"p\">.<\/span><span class=\"nx\">run<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">tick<\/span><span class=\"p\">();<\/span> <span class=\"p\">});<\/span> <span class=\"p\">});<\/span>\r\n  <span class=\"p\">}<\/span>\r\n  <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_enforceNoNewChanges<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">assertionsEnabled<\/span><span class=\"p\">();<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u4e2d\u6587\u4e2d\u5bf9\u4ee5\u4e0b\u5185\u5bb9\u8fdb\u884c\u91ca\u4e49\uff0c\u53ea\u9700\u63d0\u4f9b\u4e00\u79cd\u9009\u9879\uff1a<br \/>\nNgZone#onTurnDone \u662f\u4ec0\u4e48\u610f\u601d\uff1f<\/p>\n<pre class=\"post-pre\"><code><span class=\"cm\">\/**\r\n * Notifies subscribers immediately after Angular zone is done processing\r\n * the current turn and any microtasks scheduled from that turn.\r\n *\r\n * Used by Angular as a signal to kick off change-detection.\r\n *\/<\/span>\r\n<span class=\"kd\">get<\/span> <span class=\"nx\">onTurnDone<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span> <span class=\"k\">return<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_onTurnDoneEvents<\/span><span class=\"p\">;<\/span> <span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u542c\u8bf4\uff0c\u5728\u53d1\u751f AJAX \u6216 DOM \u4e8b\u4ef6\u540e\u4f1a\u88ab\u8c03\u7528\u5427\u3002\u5728 tick() \u51fd\u6570\u4e2d\u4f3c\u4e4e\u4f1a\u89e6\u53d1\u53d8\u66f4\u68c0\u6d4b\u3002<\/p>\n<p>Zone.js \u7684\u8be6\u7ec6\u4fe1\u606f\uff1a<\/p>\n<h2>\u5e94\u7528\u53c2\u7167_#\u5f15\u5bfc\u7a0b\u5e8f<\/h2>\n<p>\u7136\u540e\u662f\u6700\u540e\u4e00\u6b65\u7684\u5f15\u5bfc\u7a0b\u5e8f\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nx\">bootstrap<\/span><span class=\"p\">(<\/span><span class=\"nx\">componentType<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Type<\/span><span class=\"p\">,<\/span>\r\n          <span class=\"nx\">providers<\/span><span class=\"p\">?:<\/span> <span class=\"nb\">Array<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">Type<\/span> <span class=\"o\">|<\/span> <span class=\"nx\">Provider<\/span> <span class=\"o\">|<\/span> <span class=\"kr\">any<\/span><span class=\"p\">[]<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">):<\/span> <span class=\"nb\">Promise<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">ComponentRef<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"kd\">var<\/span> <span class=\"nx\">completer<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">PromiseWrapper<\/span><span class=\"p\">.<\/span><span class=\"nx\">completer<\/span><span class=\"p\">();<\/span>\r\n  <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_zone<\/span><span class=\"p\">.<\/span><span class=\"nx\">run<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"kd\">var<\/span> <span class=\"nx\">componentProviders<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">_componentProviders<\/span><span class=\"p\">(<\/span><span class=\"nx\">componentType<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">isPresent<\/span><span class=\"p\">(<\/span><span class=\"nx\">providers<\/span><span class=\"p\">))<\/span> <span class=\"p\">{<\/span>\r\n      <span class=\"nx\">componentProviders<\/span><span class=\"p\">.<\/span><span class=\"nx\">push<\/span><span class=\"p\">(<\/span><span class=\"nx\">providers<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"kd\">var<\/span> <span class=\"nx\">exceptionHandler<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_injector<\/span><span class=\"p\">.<\/span><span class=\"kd\">get<\/span><span class=\"p\">(<\/span><span class=\"nx\">ExceptionHandler<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_rootComponentTypes<\/span><span class=\"p\">.<\/span><span class=\"nx\">push<\/span><span class=\"p\">(<\/span><span class=\"nx\">componentType<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"k\">try<\/span> <span class=\"p\">{<\/span>\r\n      <span class=\"kd\">var<\/span> <span class=\"na\">injector<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Injector<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_injector<\/span><span class=\"p\">.<\/span><span class=\"nx\">resolveAndCreateChild<\/span><span class=\"p\">(<\/span><span class=\"nx\">componentProviders<\/span><span class=\"p\">);<\/span>\r\n      <span class=\"kd\">var<\/span> <span class=\"na\">compRefToken<\/span><span class=\"p\">:<\/span> <span class=\"nb\">Promise<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">ComponentRef<\/span><span class=\"o\">&gt;<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">injector<\/span><span class=\"p\">.<\/span><span class=\"kd\">get<\/span><span class=\"p\">(<\/span><span class=\"nx\">APP_COMPONENT_REF_PROMISE<\/span><span class=\"p\">);<\/span>\r\n      <span class=\"kd\">var<\/span> <span class=\"nx\">tick<\/span> <span class=\"o\">=<\/span> <span class=\"p\">(<\/span><span class=\"nx\">componentRef<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_loadComponent<\/span><span class=\"p\">(<\/span><span class=\"nx\">componentRef<\/span><span class=\"p\">);<\/span>\r\n        <span class=\"nx\">completer<\/span><span class=\"p\">.<\/span><span class=\"nx\">resolve<\/span><span class=\"p\">(<\/span><span class=\"nx\">componentRef<\/span><span class=\"p\">);<\/span>\r\n      <span class=\"p\">};<\/span>\r\n\r\n\r\n      <span class=\"kd\">var<\/span> <span class=\"nx\">tickResult<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">PromiseWrapper<\/span><span class=\"p\">.<\/span><span class=\"nx\">then<\/span><span class=\"p\">(<\/span><span class=\"nx\">compRefToken<\/span><span class=\"p\">,<\/span> <span class=\"nx\">tick<\/span><span class=\"p\">);<\/span>\r\n\r\n\r\n      <span class=\"c1\">\/\/ THIS MUST ONLY RUN IN DART.<\/span>\r\n      <span class=\"c1\">\/\/ This is required to report an error when no components with a matching selector found.<\/span>\r\n      <span class=\"c1\">\/\/ Otherwise the promise will never be completed.<\/span>\r\n      <span class=\"c1\">\/\/ Doing this in JS causes an extra error message to appear.<\/span>\r\n      <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">IS_DART<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"nx\">PromiseWrapper<\/span><span class=\"p\">.<\/span><span class=\"nx\">then<\/span><span class=\"p\">(<\/span><span class=\"nx\">tickResult<\/span><span class=\"p\">,<\/span> <span class=\"p\">(<\/span><span class=\"nx\">_<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{});<\/span>\r\n      <span class=\"p\">}<\/span>\r\n\r\n\r\n      <span class=\"nx\">PromiseWrapper<\/span><span class=\"p\">.<\/span><span class=\"nx\">then<\/span><span class=\"p\">(<\/span><span class=\"nx\">tickResult<\/span><span class=\"p\">,<\/span> <span class=\"kc\">null<\/span><span class=\"p\">,<\/span>\r\n                          <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">,<\/span> <span class=\"nx\">stackTrace<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">completer<\/span><span class=\"p\">.<\/span><span class=\"nx\">reject<\/span><span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">,<\/span> <span class=\"nx\">stackTrace<\/span><span class=\"p\">));<\/span>\r\n    <span class=\"p\">}<\/span> <span class=\"k\">catch<\/span> <span class=\"p\">(<\/span><span class=\"nx\">e<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n      <span class=\"nx\">exceptionHandler<\/span><span class=\"p\">.<\/span><span class=\"nx\">call<\/span><span class=\"p\">(<\/span><span class=\"nx\">e<\/span><span class=\"p\">,<\/span> <span class=\"nx\">e<\/span><span class=\"p\">.<\/span><span class=\"nx\">stack<\/span><span class=\"p\">);<\/span>\r\n      <span class=\"nx\">completer<\/span><span class=\"p\">.<\/span><span class=\"nx\">reject<\/span><span class=\"p\">(<\/span><span class=\"nx\">e<\/span><span class=\"p\">,<\/span> <span class=\"nx\">e<\/span><span class=\"p\">.<\/span><span class=\"nx\">stack<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"p\">}<\/span>\r\n  <span class=\"p\">});<\/span>\r\n  <span class=\"k\">return<\/span> <span class=\"nx\">completer<\/span><span class=\"p\">.<\/span><span class=\"nx\">promise<\/span><span class=\"p\">.<\/span><span class=\"nx\">then<\/span><span class=\"p\">(<\/span><span class=\"nx\">_<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"kd\">let<\/span> <span class=\"nx\">c<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_injector<\/span><span class=\"p\">.<\/span><span class=\"kd\">get<\/span><span class=\"p\">(<\/span><span class=\"nx\">Console<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"kd\">let<\/span> <span class=\"nx\">modeDescription<\/span> <span class=\"o\">=<\/span>\r\n        <span class=\"nx\">assertionsEnabled<\/span><span class=\"p\">()<\/span> <span class=\"p\">?<\/span>\r\n            <span class=\"dl\">\"<\/span><span class=\"s2\">in the development mode. Call enableProdMode() to enable the production mode.<\/span><span class=\"dl\">\"<\/span> <span class=\"p\">:<\/span>\r\n            <span class=\"dl\">\"<\/span><span class=\"s2\">in the production mode. Call enableDevMode() to enable the development mode.<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"nx\">c<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"s2\">`Angular 2 is running <\/span><span class=\"p\">${<\/span><span class=\"nx\">modeDescription<\/span><span class=\"p\">}<\/span><span class=\"s2\">`<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"nx\">_<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"p\">});<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u770b\u8d77\u6765\uff0c\u867d\u7136\u6bd4\u8f83\u590d\u6742\uff0c\u4f46\u6700\u7ec8\u9700\u8981\u521b\u5efa\u66f4\u591a\u7684\u5b50\u6ce8\u5165\u5668\uff0c\u83b7\u53d6ComponentRef\uff0c\u5e76\u4f7f\u7528\u5b83\u6765_loadComponent\uff0c\u5e76\u4ee5\u6b64\u6765\u89e3\u6790\u7ed3\u679c\u7684Promise\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nx\">_loadComponent<\/span><span class=\"p\">(<\/span><span class=\"nx\">ref<\/span><span class=\"p\">):<\/span> <span class=\"k\">void<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"kd\">var<\/span> <span class=\"nx\">appChangeDetector<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">internalView<\/span><span class=\"p\">(<\/span><span class=\"nx\">ref<\/span><span class=\"p\">.<\/span><span class=\"nx\">hostView<\/span><span class=\"p\">).<\/span><span class=\"nx\">changeDetector<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_changeDetectorRefs<\/span><span class=\"p\">.<\/span><span class=\"nx\">push<\/span><span class=\"p\">(<\/span><span class=\"nx\">appChangeDetector<\/span><span class=\"p\">.<\/span><span class=\"nx\">ref<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">tick<\/span><span class=\"p\">();<\/span>\r\n  <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_rootComponents<\/span><span class=\"p\">.<\/span><span class=\"nx\">push<\/span><span class=\"p\">(<\/span><span class=\"nx\">ref<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_bootstrapListeners<\/span><span class=\"p\">.<\/span><span class=\"nx\">forEach<\/span><span class=\"p\">((<\/span><span class=\"nx\">listener<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">listener<\/span><span class=\"p\">(<\/span><span class=\"nx\">ref<\/span><span class=\"p\">));<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5982\u679cref.hostView\u53ca\u5176\u4ed6\u8981\u7d20\u5b58\u5728\uff0c\u90a3\u4e48ComponentRef\u5c31\u662f\u5df2\u7f16\u8bd1\u8fc7\u7684\u7ec4\u4ef6\u6a21\u5f0f\u3002\u5b83\u662f\u5982\u4f55\u7f16\u8bd1\u7684\uff1f\u662f\u4ece\u6ce8\u5165\u5668\u4e2d\u83b7\u53d6ComponentRef\u5bf9\u8c61\u5417\uff1f<\/p>\n<p>\u5f53\u6211\u641c\u7d22 APP_COMPONENT_REF_PROMISE\uff0c\u6211\u627e\u5230\u4e86\u76f8\u5173\u4fe1\u606f\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">function<\/span> <span class=\"nx\">_componentProviders<\/span><span class=\"p\">(<\/span><span class=\"nx\">appComponentType<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Type<\/span><span class=\"p\">):<\/span> <span class=\"nb\">Array<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">Type<\/span> <span class=\"o\">|<\/span> <span class=\"nx\">Provider<\/span> <span class=\"o\">|<\/span> <span class=\"kr\">any<\/span><span class=\"p\">[]<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"k\">return<\/span> <span class=\"p\">[<\/span>\r\n    <span class=\"nx\">provide<\/span><span class=\"p\">(<\/span><span class=\"nx\">APP_COMPONENT<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"na\">useValue<\/span><span class=\"p\">:<\/span> <span class=\"nx\">appComponentType<\/span><span class=\"p\">}),<\/span>\r\n    <span class=\"nx\">provide<\/span><span class=\"p\">(<\/span><span class=\"nx\">APP_COMPONENT_REF_PROMISE<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"p\">{<\/span>\r\n              <span class=\"na\">useFactory<\/span><span class=\"p\">:<\/span> <span class=\"p\">(<\/span><span class=\"na\">dynamicComponentLoader<\/span><span class=\"p\">:<\/span> <span class=\"nx\">DynamicComponentLoader<\/span><span class=\"p\">,<\/span> <span class=\"na\">appRef<\/span><span class=\"p\">:<\/span> <span class=\"nx\">ApplicationRef_<\/span><span class=\"p\">,<\/span>\r\n                           <span class=\"na\">injector<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Injector<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"c1\">\/\/ Save the ComponentRef for disposal later.<\/span>\r\n                <span class=\"kd\">var<\/span> <span class=\"na\">ref<\/span><span class=\"p\">:<\/span> <span class=\"nx\">ComponentRef<\/span><span class=\"p\">;<\/span>\r\n                <span class=\"c1\">\/\/ TODO(rado): investigate whether to support providers on root component.<\/span>\r\n                <span class=\"k\">return<\/span> <span class=\"nx\">dynamicComponentLoader<\/span><span class=\"p\">.<\/span><span class=\"nx\">loadAsRoot<\/span><span class=\"p\">(<\/span><span class=\"nx\">appComponentType<\/span><span class=\"p\">,<\/span> <span class=\"kc\">null<\/span><span class=\"p\">,<\/span> <span class=\"nx\">injector<\/span><span class=\"p\">,<\/span>\r\n                                                         <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">appRef<\/span><span class=\"p\">.<\/span><span class=\"nx\">_unloadComponent<\/span><span class=\"p\">(<\/span><span class=\"nx\">ref<\/span><span class=\"p\">);<\/span> <span class=\"p\">})<\/span>\r\n                    <span class=\"p\">.<\/span><span class=\"nx\">then<\/span><span class=\"p\">((<\/span><span class=\"nx\">componentRef<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n                      <span class=\"nx\">ref<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">componentRef<\/span><span class=\"p\">;<\/span>\r\n                      <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">isPresent<\/span><span class=\"p\">(<\/span><span class=\"nx\">componentRef<\/span><span class=\"p\">.<\/span><span class=\"nx\">location<\/span><span class=\"p\">.<\/span><span class=\"nx\">nativeElement<\/span><span class=\"p\">))<\/span> <span class=\"p\">{<\/span>\r\n                        <span class=\"nx\">injector<\/span><span class=\"p\">.<\/span><span class=\"kd\">get<\/span><span class=\"p\">(<\/span><span class=\"nx\">TestabilityRegistry<\/span><span class=\"p\">)<\/span>\r\n                            <span class=\"p\">.<\/span><span class=\"nx\">registerApplication<\/span><span class=\"p\">(<\/span><span class=\"nx\">componentRef<\/span><span class=\"p\">.<\/span><span class=\"nx\">location<\/span><span class=\"p\">.<\/span><span class=\"nx\">nativeElement<\/span><span class=\"p\">,<\/span>\r\n                                                 <span class=\"nx\">injector<\/span><span class=\"p\">.<\/span><span class=\"kd\">get<\/span><span class=\"p\">(<\/span><span class=\"nx\">Testability<\/span><span class=\"p\">));<\/span>\r\n                      <span class=\"p\">}<\/span>\r\n                      <span class=\"k\">return<\/span> <span class=\"nx\">componentRef<\/span><span class=\"p\">;<\/span>\r\n                    <span class=\"p\">});<\/span>\r\n              <span class=\"p\">},<\/span>\r\n              <span class=\"na\">deps<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"nx\">DynamicComponentLoader<\/span><span class=\"p\">,<\/span> <span class=\"nx\">ApplicationRef<\/span><span class=\"p\">,<\/span> <span class=\"nx\">Injector<\/span><span class=\"p\">]<\/span>\r\n            <span class=\"p\">}),<\/span>\r\n    <span class=\"nx\">provide<\/span><span class=\"p\">(<\/span><span class=\"nx\">appComponentType<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"p\">{<\/span>\r\n              <span class=\"na\">useFactory<\/span><span class=\"p\">:<\/span> <span class=\"p\">(<\/span><span class=\"na\">p<\/span><span class=\"p\">:<\/span> <span class=\"nb\">Promise<\/span><span class=\"o\">&lt;<\/span><span class=\"kr\">any<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">p<\/span><span class=\"p\">.<\/span><span class=\"nx\">then<\/span><span class=\"p\">(<\/span><span class=\"nx\">ref<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">ref<\/span><span class=\"p\">.<\/span><span class=\"nx\">instance<\/span><span class=\"p\">),<\/span>\r\n              <span class=\"na\">deps<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"nx\">APP_COMPONENT_REF_PROMISE<\/span><span class=\"p\">]<\/span>\r\n            <span class=\"p\">}),<\/span>\r\n  <span class=\"p\">];<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5ffd\u7565TestabilityRegistry\uff0c\u6839\u636eDynamicComponentLoader#loadAsRoot\u7684\u529f\u80fd\u6765\u770b\uff0c\u5b83\u63a5\u53d7\u9876\u5c42\u7ec4\u4ef6\u7684\u7c7b\u578b\u5e76\u521b\u5efaComponentRef\u3002<\/p>\n<h2>\u52a8\u6001\u7ec4\u4ef6\u52a0\u8f7d\u5668#\u4f5c\u4e3a\u6839\u52a0\u8f7d<\/h2>\n<pre class=\"post-pre\"><code><span class=\"nx\">loadAsRoot<\/span><span class=\"p\">(<\/span><span class=\"kd\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Type<\/span><span class=\"p\">,<\/span> <span class=\"nx\">overrideSelector<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">,<\/span> <span class=\"nx\">injector<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Injector<\/span><span class=\"p\">,<\/span>\r\n             <span class=\"nx\">onDispose<\/span><span class=\"p\">?:<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"k\">void<\/span><span class=\"p\">):<\/span> <span class=\"nb\">Promise<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">ComponentRef<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_compiler<\/span><span class=\"p\">.<\/span><span class=\"nx\">compileInHost<\/span><span class=\"p\">(<\/span><span class=\"kd\">type<\/span><span class=\"p\">).<\/span><span class=\"nx\">then<\/span><span class=\"p\">(<\/span><span class=\"nx\">hostProtoViewRef<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n      <span class=\"kd\">var<\/span> <span class=\"nx\">hostViewRef<\/span> <span class=\"o\">=<\/span>\r\n          <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_viewManager<\/span><span class=\"p\">.<\/span><span class=\"nx\">createRootHostView<\/span><span class=\"p\">(<\/span><span class=\"nx\">hostProtoViewRef<\/span><span class=\"p\">,<\/span> <span class=\"nx\">overrideSelector<\/span><span class=\"p\">,<\/span> <span class=\"nx\">injector<\/span><span class=\"p\">);<\/span>\r\n      <span class=\"kd\">var<\/span> <span class=\"nx\">newLocation<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_viewManager<\/span><span class=\"p\">.<\/span><span class=\"nx\">getHostElement<\/span><span class=\"p\">(<\/span><span class=\"nx\">hostViewRef<\/span><span class=\"p\">);<\/span>\r\n      <span class=\"kd\">var<\/span> <span class=\"nx\">component<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_viewManager<\/span><span class=\"p\">.<\/span><span class=\"nx\">getComponent<\/span><span class=\"p\">(<\/span><span class=\"nx\">newLocation<\/span><span class=\"p\">);<\/span>\r\n\r\n\r\n      <span class=\"kd\">var<\/span> <span class=\"nx\">dispose<\/span> <span class=\"o\">=<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">isPresent<\/span><span class=\"p\">(<\/span><span class=\"nx\">onDispose<\/span><span class=\"p\">))<\/span> <span class=\"p\">{<\/span>\r\n          <span class=\"nx\">onDispose<\/span><span class=\"p\">();<\/span>\r\n        <span class=\"p\">}<\/span>\r\n        <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_viewManager<\/span><span class=\"p\">.<\/span><span class=\"nx\">destroyRootHostView<\/span><span class=\"p\">(<\/span><span class=\"nx\">hostViewRef<\/span><span class=\"p\">);<\/span>\r\n      <span class=\"p\">};<\/span>\r\n      <span class=\"k\">return<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">ComponentRef_<\/span><span class=\"p\">(<\/span><span class=\"nx\">newLocation<\/span><span class=\"p\">,<\/span> <span class=\"nx\">component<\/span><span class=\"p\">,<\/span> <span class=\"kd\">type<\/span><span class=\"p\">,<\/span> <span class=\"nx\">injector<\/span><span class=\"p\">,<\/span> <span class=\"nx\">dispose<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"p\">});<\/span>\r\n  <span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u7f16\u8bd1\u5668#\u5728\u4e3b\u673a\u4e0a\u7f16\u8bd1Component\u7c7b\u578b\u5e76\u521b\u5efaProtoViewRef\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>AppViewManager#\u521b\u5efa\u6839\u4e3b\u673a\u89c6\u56fe\uff1a\u4eceProtoViewRef\u4e2d\u521b\u5efaComponent\u5b9e\u4f8b\uff0c\u5e76\u5c06\u5176\u4e0e\u5728\u5168\u5c40\u89c6\u56fe\uff08\u5982\u6d4f\u89c8\u5668\u7684\u6587\u6863\uff09\u4e2d\u4e0eComponent\u9009\u62e9\u5668\uff08\u53ef\u8986\u76d6\uff09\u5339\u914d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u76f8\u5173\u8054\u3002\u8fd4\u56de\u7684\u662fHostViewRef\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>AppViewManager#\u83b7\u53d6\u4e3b\u673a\u5143\u7d20\uff1a\uff08\u7701\u7565\uff09<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>AppViewManager#\u83b7\u53d6Component\uff1a\uff08\u7701\u7565\uff09<\/ol>\n<p>TODO: HostViewRef \u548c ElementRef \u7684\u533a\u522b\uff1f\u540e\u8005\u4f3c\u4e4e\u6307\u5411 DOM \u5143\u7d20\u3002\u524d\u8005\u5462\uff1f<\/p>\n<h2>\u7f16\u8bd1\u5668_#\u5728\u4e3b\u673a\u4e0a\u7f16\u8bd1<\/h2>\n<p>\u7ec8\u4e8e\u5feb\u5230\u6838\u5fc3\u4e86\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nx\">compileInHost<\/span><span class=\"p\">(<\/span><span class=\"nx\">componentType<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Type<\/span><span class=\"p\">):<\/span> <span class=\"nb\">Promise<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">ProtoViewRef<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"kd\">var<\/span> <span class=\"nx\">metadatas<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">reflector<\/span><span class=\"p\">.<\/span><span class=\"nx\">annotations<\/span><span class=\"p\">(<\/span><span class=\"nx\">componentType<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"kd\">var<\/span> <span class=\"nx\">compiledHostTemplate<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">metadatas<\/span><span class=\"p\">.<\/span><span class=\"nx\">find<\/span><span class=\"p\">(<\/span><span class=\"nx\">_isCompiledHostTemplate<\/span><span class=\"p\">);<\/span>\r\n\r\n  <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">isBlank<\/span><span class=\"p\">(<\/span><span class=\"nx\">compiledHostTemplate<\/span><span class=\"p\">))<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">throw<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">BaseException<\/span><span class=\"p\">(<\/span>\r\n        <span class=\"s2\">`No precompiled template for component <\/span><span class=\"p\">${<\/span><span class=\"nx\">stringify<\/span><span class=\"p\">(<\/span><span class=\"nx\">componentType<\/span><span class=\"p\">)}<\/span><span class=\"s2\"> found`<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"p\">}<\/span>\r\n  <span class=\"k\">return<\/span> <span class=\"nx\">PromiseWrapper<\/span><span class=\"p\">.<\/span><span class=\"nx\">resolve<\/span><span class=\"p\">(<\/span><span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_createProtoView<\/span><span class=\"p\">(<\/span><span class=\"nx\">compiledHostTemplate<\/span><span class=\"p\">));<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u54ce\uff1f\u5df2\u7ecf\u5047\u8bbeMetadata\u5df2\u7ecf\u7f16\u8bd1\u4e86\uff1f\u6709\u4ec0\u4e48\u4e0d\u5bf9\u52b2&#8230;<\/p>\n<p>\u5f53\u5728angular2\/src\/compiler\/compiler.ts\u4e2d\u8fdb\u884c\u641c\u7d22\u65f6\uff0cCOMPILER_PROVIDERS\u7684\u8bbe\u7f6e\u5982\u4e0b\u6240\u793a\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">COMPILER_PROVIDERS<\/span><span class=\"p\">:<\/span> <span class=\"nb\">Array<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">Type<\/span> <span class=\"o\">|<\/span> <span class=\"nx\">Provider<\/span> <span class=\"o\">|<\/span> <span class=\"kr\">any<\/span><span class=\"p\">[]<\/span><span class=\"o\">&gt;<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">CONST_EXPR<\/span><span class=\"p\">([<\/span>\r\n  <span class=\"c1\">\/\/ ...<\/span>\r\n  <span class=\"k\">new<\/span> <span class=\"nx\">Provider<\/span><span class=\"p\">(<\/span><span class=\"nx\">RuntimeCompiler<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"na\">useClass<\/span><span class=\"p\">:<\/span> <span class=\"nx\">RuntimeCompiler_<\/span><span class=\"p\">}),<\/span>\r\n  <span class=\"k\">new<\/span> <span class=\"nx\">Provider<\/span><span class=\"p\">(<\/span><span class=\"nx\">Compiler<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"na\">useExisting<\/span><span class=\"p\">:<\/span> <span class=\"nx\">RuntimeCompiler<\/span><span class=\"p\">}),<\/span>\r\n  <span class=\"c1\">\/\/ ...<\/span>\r\n<span class=\"p\">]);<\/span>\r\n<\/code><\/pre>\n<p>\u5728 Compiler \u578b\u7684 DI \u4e2d\uff0c\u4f7f\u7528\u7684\u4e0d\u662f Compiler_ \u800c\u662f RuntimeCompiler_\u3002RuntimeCompiler_ \u7ee7\u627f\u81ea Compiler_\u3002<\/p>\n<p>\u56e0\u4e3a\u201cRuntime\u201d\u548c\u201cCompiler\u201d\u90fd\u6709\u5728\u540d\u79f0\u4e2d\u7684\u610f\u601d\uff0c\u6240\u4ee5\u5e94\u8be5\u8fd8\u6709\u5176\u4ed6\u4e0d\u662f\u201cRuntime\u201d\u7684\u7f16\u8bd1\u5668\u5b58\u5728\uff0c\u6240\u4ee5\u4e5f\u8bb8\u4e5f\u4f1a\u63d0\u4f9b\u79bb\u7ebf\u4f7f\u7528\u7684\u7f16\u8bd1\u5668\uff08\u5728AngularConnect\u7684\u4e3b\u9898\u6f14\u8bb2\u4e2d\u4e5f\u63d0\u5230\u4e86\u79bb\u7ebf\u7f16\u8bd1\u5c06\u4f1a\u5728\u4e0d\u4e45\u7684\u5c06\u6765\u5b9e\u73b0\uff09\u3002Compiler_\u662f\u7528\u4e8e\u4f7f\u7528\u79bb\u7ebf\u7f16\u8bd1\u7684\u6a21\u677f\u7684\u5417\uff1f<\/p>\n<h2>\u8fd0\u884c\u65f6\u7f16\u8bd1\u5668<\/h2>\n<p>\u6211\u4f1a\u91cd\u65b0\u8c03\u6574\u5fc3\u6001\uff0c\u7ee7\u7eed\u8ffd\u8e2a RuntimeCompiler\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nx\">compileInHost<\/span><span class=\"p\">(<\/span><span class=\"nx\">componentType<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Type<\/span><span class=\"p\">):<\/span> <span class=\"nb\">Promise<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">ProtoViewRef<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"k\">return<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_templateCompiler<\/span><span class=\"p\">.<\/span><span class=\"nx\">compileHostComponentRuntime<\/span><span class=\"p\">(<\/span><span class=\"nx\">componentType<\/span><span class=\"p\">)<\/span>\r\n      <span class=\"p\">.<\/span><span class=\"nx\">then<\/span><span class=\"p\">(<\/span><span class=\"nx\">compiledHostTemplate<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">internalCreateProtoView<\/span><span class=\"p\">(<\/span><span class=\"k\">this<\/span><span class=\"p\">,<\/span> <span class=\"nx\">compiledHostTemplate<\/span><span class=\"p\">));<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>TemplateCompiler#compileHostComponentRuntime: \u8fd9\u6b63\u662f Angular 2 \u7f16\u8bd1\u7684\u8fc7\u7a0b\uff01<\/ol>\n<\/li>\n<\/ol>\n<p>internalCreateProtoView: \u7ecf\u8fc7\u8ffd\u8e2a\uff0c\u53d1\u73b0\u8c03\u7528\u4e86 ProtoViewFactory#createHost\u3002\u57fa\u672c\u4e0a\u53ea\u662f\u5c06\u7f16\u8bd1\u540e\u7684 CompiledHostTemplate \u6ce8\u518c\u5230 Renderer \u4e2d\uff0c\u7136\u540e\u518d\u5c01\u88c5\u5728 AppProtoView \u4e2d\u3002<\/p>\n<h2>\u6a21\u677f\u7f16\u8bd1\u5668#\u7f16\u8bd1\u4e3b\u673a\u7ec4\u4ef6\u8fd0\u884c\u65f6<\/h2>\n<p>\u6211\u770b\u4e00\u4e0b TemplateCompiler\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nx\">compileHostComponentRuntime<\/span><span class=\"p\">(<\/span><span class=\"kd\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Type<\/span><span class=\"p\">):<\/span> <span class=\"nb\">Promise<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">CompiledHostTemplate<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"kd\">var<\/span> <span class=\"nx\">hostCacheKey<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_hostCacheKeys<\/span><span class=\"p\">.<\/span><span class=\"kd\">get<\/span><span class=\"p\">(<\/span><span class=\"kd\">type<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">isBlank<\/span><span class=\"p\">(<\/span><span class=\"nx\">hostCacheKey<\/span><span class=\"p\">))<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nx\">hostCacheKey<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nb\">Object<\/span><span class=\"p\">();<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_hostCacheKeys<\/span><span class=\"p\">.<\/span><span class=\"kd\">set<\/span><span class=\"p\">(<\/span><span class=\"kd\">type<\/span><span class=\"p\">,<\/span> <span class=\"nx\">hostCacheKey<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"kd\">var<\/span> <span class=\"na\">compMeta<\/span><span class=\"p\">:<\/span> <span class=\"nx\">CompileDirectiveMetadata<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_runtimeMetadataResolver<\/span><span class=\"p\">.<\/span><span class=\"nx\">getMetadata<\/span><span class=\"p\">(<\/span><span class=\"kd\">type<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"nx\">assertComponent<\/span><span class=\"p\">(<\/span><span class=\"nx\">compMeta<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"kd\">var<\/span> <span class=\"na\">hostMeta<\/span><span class=\"p\">:<\/span> <span class=\"nx\">CompileDirectiveMetadata<\/span> <span class=\"o\">=<\/span>\r\n        <span class=\"nx\">createHostComponentMeta<\/span><span class=\"p\">(<\/span><span class=\"nx\">compMeta<\/span><span class=\"p\">.<\/span><span class=\"kd\">type<\/span><span class=\"p\">,<\/span> <span class=\"nx\">compMeta<\/span><span class=\"p\">.<\/span><span class=\"nx\">selector<\/span><span class=\"p\">);<\/span>\r\n\r\n    <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_compileComponentRuntime<\/span><span class=\"p\">(<\/span><span class=\"nx\">hostCacheKey<\/span><span class=\"p\">,<\/span> <span class=\"nx\">hostMeta<\/span><span class=\"p\">,<\/span> <span class=\"p\">[<\/span><span class=\"nx\">compMeta<\/span><span class=\"p\">],<\/span> <span class=\"k\">new<\/span> <span class=\"nb\">Set<\/span><span class=\"p\">());<\/span>\r\n  <span class=\"p\">}<\/span>\r\n  <span class=\"k\">return<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_compiledTemplateDone<\/span><span class=\"p\">.<\/span><span class=\"kd\">get<\/span><span class=\"p\">(<\/span><span class=\"nx\">hostCacheKey<\/span><span class=\"p\">)<\/span>\r\n      <span class=\"p\">.<\/span><span class=\"nx\">then<\/span><span class=\"p\">(<\/span><span class=\"nx\">compiledTemplate<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">CompiledHostTemplate<\/span><span class=\"p\">(<\/span><span class=\"nx\">compiledTemplate<\/span><span class=\"p\">));<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u83b7\u53d6Component\u7684\u5143\u6570\u636e\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>\u521b\u5efa\u4e3b\u673aComponent\u7684\u5143\u6570\u636e\u3002<\/p>\n<p>\u8fd9\u91cc\u662f\u4e3b\u8981\u7684\u7f16\u8bd1\u5904\u7406\uff01<\/p>\n<h2>TemplateCompiler#_compileComponentRuntime\u7684\u6c47\u7f16\u8fd0\u884c\u65f6<\/h2>\n<p>\u6211\u770b\u5230\u4e00\u4e2a\u76f8\u5f53\u5927\u7684\u4eba\u7269\u51fa\u73b0\u4e86\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">private<\/span> <span class=\"nx\">_compileComponentRuntime<\/span><span class=\"p\">(<\/span>\r\n    <span class=\"nx\">cacheKey<\/span><span class=\"p\">:<\/span> <span class=\"kr\">any<\/span><span class=\"p\">,<\/span> <span class=\"nx\">compMeta<\/span><span class=\"p\">:<\/span> <span class=\"nx\">CompileDirectiveMetadata<\/span><span class=\"p\">,<\/span> <span class=\"nx\">viewDirectives<\/span><span class=\"p\">:<\/span> <span class=\"nx\">CompileDirectiveMetadata<\/span><span class=\"p\">[],<\/span>\r\n    <span class=\"nx\">compilingComponentCacheKeys<\/span><span class=\"p\">:<\/span> <span class=\"nb\">Set<\/span><span class=\"o\">&lt;<\/span><span class=\"kr\">any<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">):<\/span> <span class=\"nx\">CompiledComponentTemplate<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"kd\">let<\/span> <span class=\"nx\">uniqViewDirectives<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">removeDuplicates<\/span><span class=\"p\">(<\/span><span class=\"nx\">viewDirectives<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"kd\">var<\/span> <span class=\"nx\">compiledTemplate<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_compiledTemplateCache<\/span><span class=\"p\">.<\/span><span class=\"kd\">get<\/span><span class=\"p\">(<\/span><span class=\"nx\">cacheKey<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"kd\">var<\/span> <span class=\"nx\">done<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_compiledTemplateDone<\/span><span class=\"p\">.<\/span><span class=\"kd\">get<\/span><span class=\"p\">(<\/span><span class=\"nx\">cacheKey<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">isBlank<\/span><span class=\"p\">(<\/span><span class=\"nx\">compiledTemplate<\/span><span class=\"p\">))<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"kd\">var<\/span> <span class=\"nx\">styles<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[];<\/span>\r\n    <span class=\"kd\">var<\/span> <span class=\"nx\">changeDetectorFactory<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"kd\">var<\/span> <span class=\"nx\">commands<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[];<\/span>\r\n    <span class=\"kd\">var<\/span> <span class=\"nx\">templateId<\/span> <span class=\"o\">=<\/span> <span class=\"s2\">`<\/span><span class=\"p\">${<\/span><span class=\"nx\">stringify<\/span><span class=\"p\">(<\/span><span class=\"nx\">compMeta<\/span><span class=\"p\">.<\/span><span class=\"kd\">type<\/span><span class=\"p\">.<\/span><span class=\"nx\">runtime<\/span><span class=\"p\">)}<\/span><span class=\"s2\">Template<\/span><span class=\"p\">${<\/span><span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_nextTemplateId<\/span><span class=\"o\">++<\/span><span class=\"p\">}<\/span><span class=\"s2\">`<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"nx\">compiledTemplate<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">CompiledComponentTemplate<\/span><span class=\"p\">(<\/span>\r\n        <span class=\"nx\">templateId<\/span><span class=\"p\">,<\/span> <span class=\"p\">(<\/span><span class=\"nx\">dispatcher<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">changeDetectorFactory<\/span><span class=\"p\">(<\/span><span class=\"nx\">dispatcher<\/span><span class=\"p\">),<\/span> <span class=\"nx\">commands<\/span><span class=\"p\">,<\/span> <span class=\"nx\">styles<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_compiledTemplateCache<\/span><span class=\"p\">.<\/span><span class=\"kd\">set<\/span><span class=\"p\">(<\/span><span class=\"nx\">cacheKey<\/span><span class=\"p\">,<\/span> <span class=\"nx\">compiledTemplate<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"nx\">compilingComponentCacheKeys<\/span><span class=\"p\">.<\/span><span class=\"nx\">add<\/span><span class=\"p\">(<\/span><span class=\"nx\">cacheKey<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"nx\">done<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">PromiseWrapper<\/span>\r\n               <span class=\"p\">.<\/span><span class=\"nx\">all<\/span><span class=\"p\">([<\/span><span class=\"o\">&lt;<\/span><span class=\"kr\">any<\/span><span class=\"o\">&gt;<\/span><span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_styleCompiler<\/span><span class=\"p\">.<\/span><span class=\"nx\">compileComponentRuntime<\/span><span class=\"p\">(<\/span><span class=\"nx\">compMeta<\/span><span class=\"p\">.<\/span><span class=\"nx\">template<\/span><span class=\"p\">)].<\/span><span class=\"nx\">concat<\/span><span class=\"p\">(<\/span>\r\n                   <span class=\"nx\">uniqViewDirectives<\/span><span class=\"p\">.<\/span><span class=\"nx\">map<\/span><span class=\"p\">(<\/span><span class=\"nx\">dirMeta<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">normalizeDirectiveMetadata<\/span><span class=\"p\">(<\/span><span class=\"nx\">dirMeta<\/span><span class=\"p\">))))<\/span>\r\n               <span class=\"p\">.<\/span><span class=\"nx\">then<\/span><span class=\"p\">((<\/span><span class=\"nx\">stylesAndNormalizedViewDirMetas<\/span><span class=\"p\">:<\/span> <span class=\"kr\">any<\/span><span class=\"p\">[])<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n                 <span class=\"kd\">var<\/span> <span class=\"nx\">childPromises<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[];<\/span>\r\n                 <span class=\"kd\">var<\/span> <span class=\"nx\">normalizedViewDirMetas<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">stylesAndNormalizedViewDirMetas<\/span><span class=\"p\">.<\/span><span class=\"nx\">slice<\/span><span class=\"p\">(<\/span><span class=\"mi\">1<\/span><span class=\"p\">);<\/span>\r\n                 <span class=\"kd\">var<\/span> <span class=\"nx\">parsedTemplate<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_templateParser<\/span><span class=\"p\">.<\/span><span class=\"nx\">parse<\/span><span class=\"p\">(<\/span>\r\n                     <span class=\"nx\">compMeta<\/span><span class=\"p\">.<\/span><span class=\"nx\">template<\/span><span class=\"p\">.<\/span><span class=\"nx\">template<\/span><span class=\"p\">,<\/span> <span class=\"nx\">normalizedViewDirMetas<\/span><span class=\"p\">,<\/span> <span class=\"nx\">compMeta<\/span><span class=\"p\">.<\/span><span class=\"kd\">type<\/span><span class=\"p\">.<\/span><span class=\"nx\">name<\/span><span class=\"p\">);<\/span>\r\n\r\n                 <span class=\"kd\">var<\/span> <span class=\"nx\">changeDetectorFactories<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_cdCompiler<\/span><span class=\"p\">.<\/span><span class=\"nx\">compileComponentRuntime<\/span><span class=\"p\">(<\/span>\r\n                     <span class=\"nx\">compMeta<\/span><span class=\"p\">.<\/span><span class=\"kd\">type<\/span><span class=\"p\">,<\/span> <span class=\"nx\">compMeta<\/span><span class=\"p\">.<\/span><span class=\"nx\">changeDetection<\/span><span class=\"p\">,<\/span> <span class=\"nx\">parsedTemplate<\/span><span class=\"p\">);<\/span>\r\n                 <span class=\"nx\">changeDetectorFactory<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">changeDetectorFactories<\/span><span class=\"p\">[<\/span><span class=\"mi\">0<\/span><span class=\"p\">];<\/span>\r\n                 <span class=\"kd\">var<\/span> <span class=\"na\">tmpStyles<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">[]<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">stylesAndNormalizedViewDirMetas<\/span><span class=\"p\">[<\/span><span class=\"mi\">0<\/span><span class=\"p\">];<\/span>\r\n                 <span class=\"nx\">tmpStyles<\/span><span class=\"p\">.<\/span><span class=\"nx\">forEach<\/span><span class=\"p\">(<\/span><span class=\"nx\">style<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">styles<\/span><span class=\"p\">.<\/span><span class=\"nx\">push<\/span><span class=\"p\">(<\/span><span class=\"nx\">style<\/span><span class=\"p\">));<\/span>\r\n                 <span class=\"kd\">var<\/span> <span class=\"na\">tmpCommands<\/span><span class=\"p\">:<\/span> <span class=\"nx\">TemplateCmd<\/span><span class=\"p\">[]<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_compileCommandsRuntime<\/span><span class=\"p\">(<\/span>\r\n                     <span class=\"nx\">compMeta<\/span><span class=\"p\">,<\/span> <span class=\"nx\">parsedTemplate<\/span><span class=\"p\">,<\/span> <span class=\"nx\">changeDetectorFactories<\/span><span class=\"p\">,<\/span>\r\n                     <span class=\"nx\">compilingComponentCacheKeys<\/span><span class=\"p\">,<\/span> <span class=\"nx\">childPromises<\/span><span class=\"p\">);<\/span>\r\n                 <span class=\"nx\">tmpCommands<\/span><span class=\"p\">.<\/span><span class=\"nx\">forEach<\/span><span class=\"p\">(<\/span><span class=\"nx\">cmd<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">commands<\/span><span class=\"p\">.<\/span><span class=\"nx\">push<\/span><span class=\"p\">(<\/span><span class=\"nx\">cmd<\/span><span class=\"p\">));<\/span>\r\n                 <span class=\"k\">return<\/span> <span class=\"nx\">PromiseWrapper<\/span><span class=\"p\">.<\/span><span class=\"nx\">all<\/span><span class=\"p\">(<\/span><span class=\"nx\">childPromises<\/span><span class=\"p\">);<\/span>\r\n               <span class=\"p\">})<\/span>\r\n               <span class=\"p\">.<\/span><span class=\"nx\">then<\/span><span class=\"p\">((<\/span><span class=\"nx\">_<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n                 <span class=\"nx\">SetWrapper<\/span><span class=\"p\">.<\/span><span class=\"k\">delete<\/span><span class=\"p\">(<\/span><span class=\"nx\">compilingComponentCacheKeys<\/span><span class=\"p\">,<\/span> <span class=\"nx\">cacheKey<\/span><span class=\"p\">);<\/span>\r\n                 <span class=\"k\">return<\/span> <span class=\"nx\">compiledTemplate<\/span><span class=\"p\">;<\/span>\r\n               <span class=\"p\">});<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">_compiledTemplateDone<\/span><span class=\"p\">.<\/span><span class=\"kd\">set<\/span><span class=\"p\">(<\/span><span class=\"nx\">cacheKey<\/span><span class=\"p\">,<\/span> <span class=\"nx\">done<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"p\">}<\/span>\r\n  <span class=\"k\">return<\/span> <span class=\"nx\">compiledTemplate<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u6211\u6b63\u5728\u521b\u5efa\u5e76\u8fd4\u56de\u4e00\u4e2a\u540d\u4e3aCompiledCompoentTemplate\u7684\u4e1c\u897f\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"p\">@<\/span><span class=\"nd\">CONST<\/span><span class=\"p\">()<\/span>\r\n<span class=\"k\">export<\/span> <span class=\"kd\">class<\/span> <span class=\"nx\">CompiledComponentTemplate<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"kd\">constructor<\/span><span class=\"p\">(<\/span><span class=\"k\">public<\/span> <span class=\"nx\">id<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">,<\/span> <span class=\"k\">public<\/span> <span class=\"nx\">changeDetectorFactory<\/span><span class=\"p\">:<\/span> <span class=\"nb\">Function<\/span><span class=\"p\">,<\/span>\r\n              <span class=\"k\">public<\/span> <span class=\"nx\">commands<\/span><span class=\"p\">:<\/span> <span class=\"nx\">TemplateCmd<\/span><span class=\"p\">[],<\/span> <span class=\"k\">public<\/span> <span class=\"nx\">styles<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">[])<\/span> <span class=\"p\">{}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u6539\u53d8\u68c0\u6d4b\u5668\u5de5\u5382\u7684\u5b9e\u4f53\u3001\u547d\u4ee4\u548c\u6837\u5f0f\u5728\u8fd4\u56de\u7f16\u8bd1\u7ec4\u4ef6\u6a21\u677f\u540e\u4f1a\u88ab\u586b\u5145\uff0c\u8fd9\u662f\u4e00\u4e2a\u6709\u8da3\u7684\u5730\u65b9\u3002<\/p>\n<p>\u4ee5\u4e0b\u662f\u5b9e\u9645\u7684\u7f16\u8bd1\u5904\u7406\u8fc7\u7a0b\u3002<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>StyleCompiler#compileComponentRuntime: \u5c06CSS\u89e3\u6790\u4e3a\u62bd\u8c61\u8bed\u6cd5\u6811\uff08AST\uff09\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>TemplateCompiler#normalizeDirectiveMetadata: \u5c06\u6a21\u677f\u4e2d\u4f7f\u7528\u7684\u6307\u4ee4\uff08\u5982ngFor\u7b49PLATFORM_DIRECTIVES\u4e2d\u5b9a\u4e49\u7684\u6307\u4ee4\u548c\u901a\u8fc7directives\u6307\u5b9a\u7684\u6307\u4ee4\uff09\u7684\u5143\u6570\u636e\u8fdb\u884c\u89c4\u8303\u5316\u3002<\/p>\n<p>TemplateParser#parse: \u5229\u75282\u5c06\u6a21\u677f\u89e3\u6790\u4e3aAST\u3002\u7ed3\u679c\u4e3aTemplateAST[]\u3002\u540c\u65f6\u521b\u5efaChangeDetector\u7684\u5de5\u5382\u51fd\u6570\u3002<\/p>\n<p>TemplateCompiler#_compileCommandsRuntime: \u6839\u636e\u524d\u9762\u521b\u5efa\u7684AST\u7b49\u4fe1\u606f\uff0c\u751f\u6210\u547d\u4ee4\uff08TemplateCmd[]\uff09\u3002\u5728\u5176\u4e2d\u9012\u5f52\u5730\u7f16\u8bd1\u5b50\u7ec4\u4ef6\u3002<\/p>\n<p>\u770b\u8d77\u6765\u60a8\u60f3\u8981\u521b\u5efa\u7684\u662f TemplateCmd[] \u8fd9\u6837\u7684\u4e1c\u897f\u3002<\/p>\n<h2>&#8220;Command\u7a76\u7adf\u662f\u4ec0\u4e48\u610f\u601d\uff1f&#8221;<\/h2>\n<pre class=\"post-pre\"><code><span class=\"k\">export<\/span> <span class=\"kr\">interface<\/span> <span class=\"nx\">TemplateCmd<\/span> <span class=\"kd\">extends<\/span> <span class=\"nx\">RenderTemplateCmd<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">visit<\/span><span class=\"p\">(<\/span><span class=\"nx\">visitor<\/span><span class=\"p\">:<\/span> <span class=\"nx\">RenderCommandVisitor<\/span><span class=\"p\">,<\/span> <span class=\"nx\">context<\/span><span class=\"p\">:<\/span> <span class=\"kr\">any<\/span><span class=\"p\">):<\/span> <span class=\"kr\">any<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>TemplateCmd \u7684\u7236\u6bcd\u662f\u2026<\/p>\n<pre class=\"post-pre\"><code><span class=\"cm\">\/**\r\n * Abstract base class for commands to the Angular renderer, using the visitor pattern.\r\n *\/<\/span>\r\n<span class=\"k\">export<\/span> <span class=\"kd\">abstract<\/span> <span class=\"kd\">class<\/span> <span class=\"nx\">RenderTemplateCmd<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"kd\">abstract<\/span> <span class=\"nx\">visit<\/span><span class=\"p\">(<\/span><span class=\"nx\">visitor<\/span><span class=\"p\">:<\/span> <span class=\"nx\">RenderCommandVisitor<\/span><span class=\"p\">,<\/span> <span class=\"nx\">context<\/span><span class=\"p\">:<\/span> <span class=\"kr\">any<\/span><span class=\"p\">):<\/span> <span class=\"kr\">any<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u7e7c\u627f\u9019\u500b\u62bd\u8c61\u985e\u5225\u7684\u5305\u62ec\u4ee5\u4e0b\u5167\u5bb9\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">RenderBeginCmd: Command to begin rendering.<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">RenderTextCmd: Command to render text.<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">RenderNgContentCmd: Command to render projected content.<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">RenderBeginElementCmd: Command to begin rendering an element.<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">RenderBeginComponentCmd: Command to begin rendering a component.<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">RenderEmbeddedTemplateCmd: Command to render a component&#8217;s template.<\/ul>\n<p>\u8fd9\u5f88\u4ee4\u4eba\u60ca\u8bb6\u3002\u770b\u8d77\u6765\u201cCommand\u201d\u4f3c\u4e4e\u662f\u6307\u7528\u4e8e\u6e32\u67d3\u7684\u6307\u4ee4\u3002\u603b\u7ed3\u6765\u8bf4\uff0cAngular 2 \u5728\u5c06\u7ec4\u4ef6\u7684\u6a21\u677f\u89e3\u6790\u4e3aAST\u540e\uff0c\u5c06\u5176\u8f6c\u6362\u4e3a\u7528\u4e8e\u7ed8\u5236HTML\uff08\u5728\u6d4f\u89c8\u5668\u4e2d\uff09\u7684\u6307\u4ee4\u96c6\u3002\u8fd9\u88ab\u79f0\u4e3a\u7f16\u8bd1\u8fc7\u7a0b\u3002<\/p>\n<h2>\u7ec8\u7ed3<\/h2>\n<p>\u8fd9\u6b21\u5728\u8fd9\u91cc\u65f6\u95f4\u5230\u4e86\uff0c\u4f46\u662f\uff08\u5982\u679c\u6709\u7684\u8bdd\uff09\u4e0b\u6b21\u6211\u4eec\u60f3\u8981\u7f16\u8bd1\u5e76\u67e5\u770b\u5982\u4f55\u4f7f\u7528\u751f\u6210\u7684\u547d\u4ee4\u3002\u8ba9\u6211\u4eec\u4e00\u8d77\u6765\u89e3\u6790Angular 2\u7684\u5185\u90e8\u7ed3\u6784\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u5e74\u5e95\u7684\u6d3b\u52a8\u4e2d\uff0c\u6211\u6709\u51e0\u6b21\u4ecb\u7ecd\u4e86Angular 2\u7684\u5185\u5bb9\uff0c\u4f46\u662f\u6211\u53d1\u73b0\u81ea\u5df1\u4e00\u8fb9\u8bf4\u7740\u4e00\u8fb9\u5e76\u6ca1\u6709\u5f88\u597d\u5730\u7406\u89e3\u3002\u6211\u4e00\u76f4\u60f3\u5728 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