{"id":10007010,"date":"2022-12-26T11:21:07","date_gmt":"2022-12-26T03:21:07","guid":{"rendered":"https:\/\/ityet.com\/?p=10007010"},"modified":"2022-12-26T11:21:07","modified_gmt":"2022-12-26T03:21:07","slug":"%e5%a6%82%e4%bd%95%e4%b8%8d%e6%94%b9%e4%b8%80%e8%a1%8c%e4%bb%a3%e7%a0%81%ef%bc%8c%e8%ae%a9hippy%e5%90%af%e5%8a%a8%e9%80%9f%e5%ba%a6%e6%8f%90%e5%8d%8750%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10007010","title":{"rendered":"\u5982\u4f55\u4e0d\u6539\u4e00\u884c\u4ee3\u7801\uff0c\u8ba9Hippy\u542f\u52a8\u901f\u5ea6\u63d0\u534750%\uff1f"},"content":{"rendered":"<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043150758\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" 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decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043150760\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><\/p>\n<p><strong>Hippy\u4e1a\u52a1\u8017\u65f6\u74f6\u9888\u5206\u6790<\/strong><\/p>\n<p>Hippy\u6574\u4e2a\u542f\u52a8\u6d41\u7a0b\u4f9d\u8d56JS\u7ebf\u7a0b\u7684\u6267\u884c\u3002<strong>\u6211\u4eec\u5176\u5b9e\u53ef\u4ee5\u5c06\u6574\u4e2a\u8fc7\u7a0b\u62bd\u8c61\u770b\u6210\u4e00\u4e2a\u4e32\u884c\u7684\u64cd\u4f5c\uff0c\u4ee5QB\u51b7\u542f\u52a8\u9996\u9875Feed\u6d41\uff0c\u7ed3\u5408\u7ebf\u4e0a\u6570\u636e\u6027\u80fd\u76d1\u63a7\u53ef\u4ee5\u770b\u5230\u5982\u4e0b\u9636\u6bb5\u8017\u65f6<\/strong>\uff1a<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043150761\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><\/p>\n<p>\u6ce8\uff1a<strong>TTI = Time To Interact<\/strong>\uff0c\u610f\u601d\u662f\u4ece\u4e1a\u52a1\u521b\u5efa\u5230\u4e1a\u52a1\u53ef\u4ea4\u4e92\u6240\u82b1\u8d39\u7684\u65f6\u95f4\uff0c\u56e0\u4e3a\u8861\u91cf\u4e1a\u52a1\u53ef\u4ea4\u4e92\u6bd4\u8f83\u590d\u6742\uff0c\u5404\u4e2a\u4e1a\u52a1\u5bf9\u53ef\u4ea4\u4e92\u7684\u5b9a\u4e49\u4e0d\u4e00\u6837\uff0c\u6240\u4ee5\u8fd9\u91cc\u4ee5\u9996\u5e27\u4e0a\u5c4f\u4e3a\u51c6\u6765\u8861\u91cf\uff1b<\/p>\n<p>\u901a\u8fc7\u6253\u70b9\u5206\u6790\u5f97\u5230\uff0c\u7528\u6237\u4ece\u6253\u5f00\u4e1a\u52a1\u521b\u5efaRootView\u5f00\u59cb\uff0c\u5230\u6700\u7ec8\u9996\u5e27\u4e0a\u5c4f\u603b\u5171\u8017\u65f61488\u6beb\u79d2\uff0c\u5176\u4e2d\u4e3b\u8981\u5728Module\u521d\u59cb\u5316\u3001\u521b\u5efaHippyCore\uff08bootstrap.js\u4ee5\u53cacommon\u5305\u6267\u884c\u8017\u65f6\uff09\u3001\u4e1a\u52a1\u5305\u6267\u884c\u8017\u65f6\u4e0a\u3002\u5176\u4e2d\u52a0\u8f7d\u6267\u884c\u4e1a\u52a1\u5305\u8017\u65f61303\u6beb\u79d2\uff0c\u5360\u6574\u4f53TTI\u768487%\u3002<\/p>\n<p>\u5982\u679c\u6211\u4eec\u80fd\u591f<strong>\u4f18\u5316\u52a0\u8f7d\u6267\u884c\u4e1a\u52a1\u5305\u7684\u8017\u65f6<\/strong>\uff0c\u90a3\u4e48\u6211\u4eec\u5c31\u53ef\u4ee5\u6781\u5927\u7684\u964d\u4f4eTTI\u3002\u5728iOS\u4e0aHippy\u4f7f\u7528\u7684\u662f\u7cfb\u7edf\u63d0\u4f9b\u7684JavascriptCore\u5f15\u64ce\u6765\u8fd0\u884cJS\u4ee3\u7801\uff0c\u6240\u4ee5\u6211\u4eec\u8981\u5206\u6790\u4e00\u4e0bJSC\u7684\u6267\u884c\u8fc7\u7a0b\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043150762\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><\/p>\n<p><strong>JavascriptCore\u6267\u884c\u6d41\u7a0b\u5206\u6790<\/strong><\/p>\n<p>\u5177\u4f53\u6d41\u7a0b\uff1a\u8bcd\u6cd5\u5206\u6790\uff0c\u8f93\u51fatokens\uff1b\u8bed\u6cd5\u5206\u6790\uff0c\u751f\u4ea7AST\uff08\u62bd\u8c61\u8bed\u6cd5\u6811\uff09\uff1b\u4eceAST\u751f\u6210\u5b57\u8282\u7801\uff1b \u901a\u8fc7Low Level\u89e3\u91ca\u5668\u6267\u884c\u5b57\u8282\u7801\uff1b\u4f7f\u7528JIT\u52a0\u901f\u89e3\u91ca\u6267\u884c\u673a\u5668\u7801\uff08\u5e26JIT\u7684\u7248\u672c\uff09\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043150763\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><\/p>\n<p>\u6ce8\uff1a\u672c\u6587JSC\u662f\u6307\u82f9\u679c\u5b98\u65b9\u63d0\u4f9b\u7684JavascriptCore.framework\uff0cJSC\u5206\u5e26JIT\u4e0e\u4e0d\u5e26JIT\u7684\u7248\u672c\uff0c\u5e26JIT\u7684\u7248\u672c\u76ee\u524d\u53ea\u6709\u82f9\u679c\u81ea\u5bb6\u7684Safari\u80fd\u591f\u4f7f\u7528\uff0c\u516c\u5f00\u7684JavascriptCore\u56e0\u4e3a\u5b89\u5168\u539f\u56e0\uff08JIT\u53ef\u4ee5\u52a8\u6001\u6267\u884c\u673a\u5668\u7801\uff09\uff0c\u5b9e\u9645\u662f\u4e0d\u5e26JIT\u7684\u7248\u672c\u3002\u4e0b\u9762\u8ba8\u8bba\u7684\u4e5f\u662f\u6307\u4e0d\u5e26JIT\u7684JSC\u7248\u672c\u3002<\/p>\n<p>\u6574\u4e2a\u6d41\u7a0b\uff0c\u5728JS\u4ee3\u7801\u88ab\u89e3\u91ca\u6267\u884c\u524d\uff0c\u7edd\u5927\u90e8\u5206\u65f6\u95f4\u6d88\u8017\u662f\u5728\u5b57\u8282\u7801\u751f\u6210\u4e0a\u3002\u5982\u679c\u80fd\u5c06Bytecode\u751f\u6210\u524d\u7f6e\u7f13\u5b58\u8d77\u6765\uff0c\u6bcf\u6b21\u6267\u884cJS\u7684\u65f6\u5019\u76f4\u63a5\u53d6\u7f13\u5b58\u7684Bytecode\uff0c\u90a3\u5c06\u4f1a\u6781\u5927\u964d\u4f4e\u8017\u65f6\u3002\u4f46\u662f\u5f88\u53ef\u60dc\u7684\u662f\uff0cJavascriptCore\u5c5e\u4e8e\u7cfb\u7edf\u5e93\uff0c\u5e76\u6ca1\u6709\u63d0\u4f9b\u8fd9\u4e2a\u80fd\u529b\u3002<strong>\u6211\u4eec\u53ef\u4ee5\u8003\u8651\u9009\u62e9\u5176\u4ed6\u652f\u6301Bytecode\u7684\u5f15\u64ce\u66ff\u6362\u6389JSC\u3002<\/strong><\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043150764\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><\/p>\n<p><strong>\u53ef\u9009\u5f15\u64ce\u5bf9\u6bd4<\/strong><\/p>\n<p>\u9664\u4e86JSC\uff0c\u5e38\u89c1\u7684\u5f00\u6e90\u5f15\u64ce\u5305\u62ecV8\u3001QuickJS\u3001Hermes\u3002<br \/><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc5dDr\" alt=\"image.png\" title=\"image.png\" loading=\"lazy\"><\/p>\n<p>\u6ce8\uff1a\u76f4\u51fa\u662f\u6307\u652f\u6301\u7f16\u8bd1\u8f93\u51faBytecode\u6587\u4ef6\uff0c\u5e76\u4e14\u76f4\u63a5\u8fd0\u884cBytecode\u3002<\/p>\n<p>Hermes\u548cQuickJS\u652f\u6301\u76f4\u51faBytecode\uff0c\u5e76\u4e14\u5728\u5305\u5927\u5c0f\u4e0a\u5bf9\u6bd4V8\u548cJSC\u5360\u4f18\u3002<\/p>\n<p><strong>1\uff09\u6027\u80fd\u6307\u6807\u5bf9\u6bd4<\/strong><\/p>\n<p>\u4ee5\u4e0b\u5404\u9879\u5bf9\u6bd4\u53d6\u81f3Linux\u4e0a\u5404\u5f15\u64ce\u6d4b\u8bd5\u6570\u636e<\/p>\n<ul>\n<li>\n<h3><strong>\u5305\u52a0\u8f7d\u8017\u65f6\u901f\u5ea6\u5bf9\u6bd4\uff08\u8d8a\u4f4e\u8d8a\u597d\uff09<\/strong><\/h3>\n<\/li>\n<\/ul>\n<p>\u4f7f\u7528\u5f15\u64ce\u6267\u884c\u4e1a\u52a1JS\u4ee3\u7801\uff0c\u5176\u4e2dJSC\u548cV8\u5747\u662f\u76f4\u63a5\u6267\u884cJS\u4ee3\u7801\uff0cQuickJS\u548cHermes\u662f\u6267\u884cBytecode\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043150765\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><\/p>\n<p>QuickJS\u4e00\u9a91\u7edd\u5c18\uff0cHermes\u7d27\u8ddf\u5176\u540e\uff0cJSC\u6b21\u4e4b\uff0cV8\u6700\u5dee\uff1b<\/p>\n<ul>\n<li>\n<h3><strong>\u6267\u884c\u6548\u7387\u5bf9\u6bd4\uff08\u8d8a\u9ad8\u8d8a\u597d\uff09<\/strong><\/h3>\n<\/li>\n<\/ul>\n<p>\u4f7f\u7528\u5f15\u64ce\u8dd1\u4e00\u4e9b\u5f00\u6e90\u7684\u7b97\u6cd5\u6216\u8005\u77e5\u540dJS\u529f\u80fd\u5e93\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043150766\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043150767\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><\/p>\n<p>V8\u548cJSC\u6027\u80fd\u6700\u597d\uff0cHermes\u6b21\u4e4b\uff0cQuickJS\u6700\u5dee\uff1b<\/p>\n<ul>\n<li>\n<h3><strong>\u5185\u5b58\u589e\u91cf\uff08\u8d8a\u4f4e\u8d8a\u597d\uff09<\/strong><\/h3>\n<\/li>\n<\/ul>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043150768\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043150769\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><\/p>\n<p>\u8868\u73b0\u6700\u597d\u7684\u662fJSC\uff0c\u5176\u6b21\u662fHermes\u548cV8\uff1b\u5e26JIT\u7684JSC\u548cV8\uff0c\u5185\u5b58\u6d88\u8017\u6700\u9ad8\uff1b<\/p>\n<ul>\n<li>\n<h3><strong>\u7f16\u8bd1\u6587\u4ef6\u5927\u5c0f<\/strong><\/h3>\n<\/li>\n<\/ul>\n<p>\u8861\u91cf\u7f16\u8bd1\u6587\u4ef6\u538b\u7f29\u6bd4\u662f\u4e3a\u4e86\u8861\u91cf\u5305\u4e0b\u53d1\u66f4\u65b0\u6548\u7387\uff0c\u4ee5QB\u9996\u9875Feed\u6d41\uff083.8M\u5de6\u53f3\uff09\u4e3e\u4f8b\uff0cJSC\u548cV8\u5747\u8f93\u5165\u539f\u59cbjs\u6587\u4ef6\uff0cQuickJS\u548cHermes\u8f93\u5165JS\u7f16\u8bd1\u540e\u7684Bytecode\u6587\u4ef6\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043150770\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><\/p>\n<p>JSC\u548cV8\u538b\u7f29\u6bd4\u8f83\u9ad8\uff0cHermes\u548cQuickJS\u538b\u7f29\u6bd4\u4e0d\u9ad8\uff0c\u5728\u4e0b\u53d1\u6548\u7387\u4e0a\uff0c\u5dee\u4e8eJSC\u548cV8\uff1b<\/p>\n<p><strong>2\uff09\u7ed3\u8bba<\/strong><\/p>\n<p>\u4ece\u6267\u884c\u8017\u65f6\u3001\u6267\u884c\u6027\u80fd\u3001\u5185\u5b58\u589e\u91cf\u3001\u7f16\u8bd1\u6587\u4ef6\u5927\u5c0f\u4ee5\u53ca\u6574\u4f53framework\u5927\u5c0f5\u4e2a\u7eac\u5ea6\u6765\u5206\u6790\u770b\uff1a \u5e26JIT\u7684JSC\u548cV8\u6027\u80fd\u6700\u597d\uff0c\u4f46\u662f\u52a0\u8f7d\u65f6\u95f4\u662f\u6700\u957f\u7684\uff0c\u5185\u5b58\u6d88\u8017\u4e5f\u662f\u6700\u591a\u7684\uff0c\u5305\u4e5f\u8f83\u5927\uff1b\u652f\u6301\u63d0\u524d\u9884\u7f16\u8bd1\u7684Hermes\u548cQuickJS\uff0c\u52a0\u8f7d\u901f\u5ea6\u4ee5\u53ca\u5185\u5b58\u8868\u73b0\u662f\u6700\u597d\u7684\u3002\u200d<\/p>\n<p><strong>\u5bf9\u4e8e\u63d0\u9ad8TTI\uff0c\u52a0\u8f7d\u901f\u5ea6\u6307\u6807\u6700\u4e3a\u91cd\u8981<\/strong>\u3002\u867d\u7136\u6027\u80fd\u4f4e\u4e8eJSC\u548cV8\uff0c\u4f46\u662f\u5bf9\u4e8eJS\u8017\u65f6\u9ad8\u7684\u64cd\u4f5c\uff0c\u53ef\u4ee5\u5145\u5206\u5229\u7528modules\u653e\u5728Native\u53bb\u64cd\u4f5c\uff1b\u6240\u4ee5\u57fa\u4e8e\u4ee5\u4e0a\uff0c\u4f1a\u4f18\u5148\u8003\u8651Hermes\u548cQuickJS\uff1b<\/p>\n<p>Hermes\u5728\u6027\u80fd\u3001\u5185\u5b58\u4ee5\u53ca\u7f16\u8bd1\u5305\u5927\u5c0f\u4e0a\u662f\u4f18\u4e8eQuickJS\u7684\uff0c\u53e6\u5916Hermes\u6709Facebook\u7684React Native\u793e\u533a\u751f\u6001\u652f\u6301\uff0c\u76f8\u8f83\u4e8eQuickJs\u66f4\u65b0\u6f14\u8fdb\u66f4\u5feb\uff0c\u6240\u4ee5\u66f4\u503e\u5411\u4f7f\u7528Hermes\u6765\u66ff\u6362JSC\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043150771\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><strong>Hermes\u5f15\u64ce\u8c03\u7814<\/strong><\/p>\n<p><strong>1\uff09\u7f16\u8bd1<\/strong><\/p>\n<p>Hermes\u867d\u7136\u662f\u6df1\u5ea6\u96c6\u6210\u5728React Native\u91cc\u7684\uff0c\u4f46\u662ffacebook\u4e5f\u5c06\u5355\u72ec\u7684\u5f15\u64ce\u72ec\u7acb\u51fa\u6765\u4e86\uff0c\u5b98\u7f51\u5730\u5740 \u4ed3\u5e93\u5730\u5740 \u7f16\u8bd1\u6307\u5357\u3002<\/p>\n<p>\u6309\u7167\u7f16\u8bd1\u6307\u5357\u7f16\u8bd1\u4e4b\u540e\uff0c\u5b9e\u9645\u7f16\u8bd1\u7684\u4ea7\u7269\u53ea\u662f\u7528\u4e8e\u5728PC\/Mac\/Linux\u8fd0\u884c\u7684Hermes\u4e8c\u8fdb\u5236\u6587\u4ef6\u3002\u901a\u8fc7\u8fd9\u4e9b\u4e8c\u8fdb\u5236\u6587\u4ef6\uff0c\u6211\u4eec\u53ef\u4ee5\u5728Terminal\u91cc\u6267\u884cJS\uff0c\u4ee5\u53ca\u5c06JS\u7f16\u8bd1\u6210Bytecode\u3002<\/p>\n<pre><code># \u6267\u884c\u539f\u59cbJS \nhermes test.js\n# \u7f16\u8bd1\u5e76\u8f93\u51fa\u4ee5\u53ca\u6267\u884cBytecode \nhermes -emit-binary -out test.hbc test.js hermes test.hbc<\/code><\/pre>\n<p>\u5728\u79fb\u52a8\u7aef\u4e0a\uff0cHermes\u4e5f\u662f\u4f7f\u7528CMake\u8fdb\u884c\u7f16\u8bd1\uff0c\u5e76\u4e14\u63d0\u4f9b\u4e86\u811a\u672c\u53ef\u4ee5\u65b9\u4fbf\u8f93\u51faAndroid\u548ciOS\u52a8\u6001\u5e93\u3002\u5177\u4f53\u53ef\u4ee5\u5728\u5b98\u7f51\u4e0a\u67e5\u770b\u7f16\u8bd1\u6307\u5357\u3002<\/p>\n<p><strong>2\uff09\u8fd0\u884c<\/strong><\/p>\n<p>Hermes\u5305\u542b\u51e0\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u7ed3\u6784\u5bf9\u8c61\uff0c\u4e0b\u9762\u4e3b\u8981\u8bb2\u5176\u4e2d\u7684\u51e0\u4e2a\u3002<\/p>\n<ul>\n<li>\n<h3><strong>Runtime<\/strong><\/h3>\n<\/li>\n<\/ul>\n<p>Hermes\u4f7f\u7528\u975e\u5e38\u7b80\u5355\uff0c\u63d0\u4f9b\u4e86\u4e00\u4e2aRuntime\u7684\u62bd\u8c61\u7c7b\uff0c\u6240\u6709\u7684js\u5bf9\u8c61\u90fd\u6267\u884c\u5728Runtime\u5bf9\u8c61\u4e0a\uff0c\u7c7b\u4f3cJSC\u7684JSContext\uff1b\u6d3e\u751f\u4e86HermesRuntime\u5b50\u7c7b\u6765\u5b9e\u73b0\u6240\u6709JS\u64cd\u4f5c\u3002\u901a\u8fc7\u9759\u6001\u65b9\u6cd5\u521b\u5efa\u4e00\u4e2aHermesRuntime\u5bf9\u8c61\uff1b<\/p>\n<pre><code>HERMES_EXPORT std::unique_ptr&lt;HermesRuntime&gt; makeHermesRuntime(\n    const ::hermes::vm::RuntimeConfig &amp;runtimeConfig =\n        ::hermes::vm::RuntimeConfig());<\/code><\/pre>\n<p>\u540c\u65f6\u4e5f\u63d0\u4f9b\u4e86\u4e00\u4e9b\u6267\u884cJS\u7684\u65b9\u6cd5<\/p>\n<pre><code>\/\/ \u6267\u884cJS\uff08JS or Bytecode\uff09\n  virtual Value evaluateJavaScript(\n      const std::shared_ptr&lt;const Buffer&gt;&amp; buffer,\n      const std::string&amp; sourceURL) = 0;\n\n  \/\/ \u9884\u7f16\u8bd1JS\n  virtual std::shared_ptr&lt;const PreparedJavaScript&gt; prepareJavaScript(\n      const std::shared_ptr&lt;const Buffer&gt;&amp; buffer,\n      std::string sourceURL) = 0;\n\n  \/\/ \u6267\u884c\u9884\u7f16\u8bd1\u7684JS\n  virtual Value evaluatePreparedJavaScript(\n      const std::shared_ptr&lt;const PreparedJavaScript&gt;&amp; js) = 0;<\/code><\/pre>\n<ul>\n<li>\n<h3><strong>Value<\/strong><\/h3>\n<\/li>\n<\/ul>\n<p>JSC\u5728\u5904\u7406\u57fa\u7840\u6570\u636e\u7684\u65f6\u5019\uff0c\u6240\u6709\u7684\u7c7b\u578b\u90fd\u662fJSValue\u7c7b\u578b\uff1b\u5904\u7406Object\u662fJSObjectRef\u5bf9\u8c61\uff0c\u5728Hermes\u4e0a\u4e5f\u6709\u5bf9\u5e94\u7684\u5b9e\u73b0\uff1b<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043150772\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><\/p>\n<p>\u63d0\u4f9b\u65b9\u6cd5\u5224\u65ad\u662f\u4ec0\u4e48\u7c7b\u578b\uff0c\u4ee5\u53ca\u5feb\u6377\u83b7\u53d6\u7c7b\u578b\u503c\uff0c\u6bd4\u5982\uff1a<\/p>\n<pre><code>Bool isStr = value.isString()\nfacebook::jsi::String str = value.asString()<\/code><\/pre>\n<ul>\n<li>\n<h3><strong>Object<\/strong><\/h3>\n<\/li>\n<\/ul>\n<p>Object\u5bf9\u5e94\u5c31\u662fJS\u7684\u5bf9\u8c61\uff0c\u57fa\u4e8eObject\u6d3e\u751fFunction\u4ee5\u53caArray\u548cJSArrayBuffer\uff0c\u540c\u6837Object\u4e5f\u63d0\u4f9b\u5f88\u591a\u65b9\u6cd5\u83b7\u53d6\u548c\u8bbe\u7f6e\u5c5e\u6027\u3002\u200d<\/p>\n<p>Runtime\u63d0\u4f9b\u4e00\u4e2a\u9ed8\u8ba4\u7684\u5168\u5c40\u5bf9\u8c61global, \u6240\u6709\u7684JS\u903b\u8f91\u5747\u8fd0\u884c\u5728\u9ed8\u8ba4\u7684global\u4e4b\u4e0a\u3002Object\u4e5f\u63d0\u4f9b\u5f88\u5bf9\u65b9\u6cd5\u83b7\u53d6\u5c5e\u6027\uff0c\u6bd4\u5982\uff1a<\/p>\n<pre><code>\/\/\u5224\u65ad\u662f\u5426\u6709\u8be5\u5c5e\u6027\nbool hasProperty(Runtime&amp; runtime, const char* name) const;\n\n\/\/ \u83b7\u53d6\u5c5e\u6027\u503c\nValue getProperty(Runtime&amp; runtime, const char* name) const;\n\n\/\/ \u83b7\u53d6\u5c5e\u6027\u503c\u5e76\u8f6c\u5316\u6210object\nObject getPropertyAsObject(Runtime&amp; runtime, const char* name) const;<\/code><\/pre>\n<ul>\n<li>\n<h3><strong>Function<\/strong><\/h3>\n<\/li>\n<\/ul>\n<p>\u5bf9\u5e94JS\u7684Function\uff0c\u63d0\u4f9b\u9759\u6001\u65b9\u6cd5\u521b\u5efaFunction\uff1a<\/p>\n<pre><code>\/\/ \u5224\u65ad\u662f\u5426\u6709\u8be5\u5c5e\u6027\nbool hasProperty(Runtime&amp; runtime, const char* name) const;\n\n\/\/ \u83b7\u53d6\u5c5e\u6027\u503c\nValue getProperty(Runtime&amp; runtime, const char* name) const;\n\n\/\/ \u83b7\u53d6\u5c5e\u6027\u503c\u5e76\u8f6c\u5316\u6210object\nObject getPropertyAsObject(Runtime&amp; runtime, const char* name) const;<\/code><\/pre>\n<p>\u63d0\u4f9b\u5b9e\u4f8b\u65b9\u6cd5\u8c03\u7528\uff1a<\/p>\n<pre><code>static Function createFromHostFunction(\n      Runtime&amp; runtime,\n      const jsi::PropNameID&amp; name,\n      unsigned int paramCount,\n      jsi::HostFunctionType func);<\/code><\/pre>\n<p>\u540c\u6837\u8fd8\u6709Array\uff0cArrayBuffer\uff0cHostObject\u7b49\u7b49\u3002<\/p>\n<p><strong>\u901a\u8fc7Runtime\uff0c\u6211\u4eec\u53ef\u4ee5\u83b7\u53d6JS Object\u3001Function\uff0c\u540c\u65f6\u6211\u4eec\u4e5f\u53ef\u4ee5\u521b\u5efaJS Object\u3001Function\uff0c\u6ce8\u5165\u7ed9JS\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u5b9e\u73b0\u53cc\u5411\u901a\u4fe1\u3002<\/strong><\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043150773\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><strong>Hippy2.0\u67b6\u6784\u5206\u6790<\/strong><\/p>\n<p><strong>1\uff09\u67b6\u6784<\/strong><\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043150774\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><\/p>\n<p>\u5305\u542b\u4e09\u5c42\uff1a<\/p>\n<p><strong>\u548c\u5e73\u53f0\u76f8\u5173\u7684\u80fd\u529b\u6269\u5c55\u6bd4\u5982Module\u80fd\u529b\u548cUI\u7ec4\u4ef6\uff0c\u4ee5\u53ca\u8c03\u7528\u5e95\u5c42HippyCore\u7684\u63a5\u53e3\u5c01\u88c5\u7684Bridge\u548cJS Executor\u5c42<\/strong>\uff0c\u8be5\u5c42\u5728iOS\u548cAndroid\u4e0a\u5206\u522b\u4f7f\u7528OC\u548cJAVA\u5b9e\u73b0\u3002\u200d<\/p>\n<p><strong>HippyCore\u5c42<\/strong>\uff0c\u901a\u8fc7napi\u5bf9\u4e0d\u540cJS\u5f15\u64ce\u7684\u63a5\u53e3\u8fdb\u884c\u63a5\u53e3\u5c01\u88c5\uff0c\u62b9\u5e73\u4e0d\u540c\u5f15\u64ce\u7684\u63a5\u53e3\u5dee\u5f02\uff0c\u8ba9\u4e0a\u5c42\u8c03\u7528\u901a\u8fc7\u8c03\u7528\u7b80\u5355\u7684\u63a5\u53e3\u5b9e\u73b0\u590d\u6742\u7684\u80fd\u529b\uff0c\u8be5\u5c42\u4f7f\u7528C++\u5b9e\u73b0\uff0c\u8de8\u5e73\u53f0\u3002<\/p>\n<p><strong>\u524d\u7aefJS SDK\u5c42<\/strong>\uff0c\u4e3b\u8981\u662f\u5b9a\u4e49\u4e86\u53cc\u5411\u901a\u4fe1\u7684\u65b9\u6cd5\u51fd\u6570\u8ddf\u4e0a\u5c42\u8fdb\u884c\u901a\u4fe1\u4ee5\u53ca\u529f\u80fd\u5904\u7406\u3002<\/p>\n<p>\u53e6\u5916\u8fd8\u5305\u62ec\u4e00\u4e9b\u80fd\u529b\uff0c\u57fa\u672c\u662f\u5728hippycore\u5c42\u5b9e\u73b0\u3002\u6bd4\u5982C++ Modules\uff0c TurboModules\u7b49\u3002<\/p>\n<p>\u6211\u4eec\u9700\u8981\u5207\u6362\u5f15\u64ce\uff0c\u4e0a\u4e0b\u4e24\u5c42\u5176\u5b9e\u90fd\u4e0d\u9700\u8981\u7279\u522b\uff08\u5927\u91cf\uff09\u4fee\u6539\uff0c\u6838\u5fc3\u5c31\u662f\u5728hippycore\u5c42\uff0c\u9700\u8981\u4f7f\u7528hermes\u5c06napi\u5b9a\u4e49\u7684\u63a5\u53e3\u5168\u90e8\u5b9e\u73b0\u4e00\u904d\uff0c\u4ee5\u53ca\u540c\u65f6\u5b9e\u73b0\u73b0\u5728\u5df2\u7ecf\u6709\u7684Abilites\u3002<\/p>\n<ul>\n<li>\n<h3><strong>napi<\/strong><\/h3>\n<\/li>\n<\/ul>\n<p>\u4e3b\u8981\u6709\u51e0\u79cd\u6982\u5ff5\uff1aEngine\uff1a\u8d1f\u8d23\u521b\u5efaVM\u4ee5\u53caScope\uff1bVM\uff1a\u8d1f\u8d23\u521b\u5efa\u7ba1\u7406Ctx\uff0c\u4e00\u4e2aVM\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u6216\u8005\u591a\u4e2aCtx;Ctx\uff1a\u8d1f\u8d23\u521b\u5efa\u5f15\u64ce\u5b9e\u4f8b\uff0c\u5e76\u5c01\u88c5\u64cd\u4f5c\u5f15\u64ce\u7684\u63a5\u53e3\u4f9b\u5916\u90e8\u8c03\u7528;CtxValue\uff1a\u8d1f\u8d23\u5c01\u88c5\u4e0d\u540c\u5f15\u64ce\u7684JS Value;Scope\uff1a\u4f7f\u7528Ctx\uff0c\u6267\u884cHippy\u57fa\u7840\u521d\u59cb\u5316\u6d41\u7a0b\u3002\u200d<\/p>\n<ul>\n<li>\n<h3><strong>Scope<\/strong><\/h3>\n<\/li>\n<\/ul>\n<p>\u4e3b\u8981\u8d1f\u8d23Hippy\u57fa\u7840\u521d\u59cb\u5316\u6d41\u7a0b\uff0c\u6838\u5fc3\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043150775\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><\/p>\n<h4><strong>\u6ce8\u5165Natives\u65b9\u6cd5<\/strong><\/h4>\n<p>\u901a\u8fc7\u7ed9JS\u6ce8\u5165Native Function\u65b9\u6cd5\u7684\u65b9\u5f0f\uff0c\u8ba9JS\u53ef\u4ee5\u76f4\u63a5\u8c03\u7528\u7ec8\u7aef\u65b9\u6cd5\uff1b\u4e3b\u8981\u662f\u5e38\u89c1\u7684JS\u4fa7CallNative\u65b9\u6cd5\u5747\u901a\u8fc7\u6b64\u8fdb\u884c\u5206\u53d1\u3002<\/p>\n<h4><strong>\u6267\u884cJS Native Source Code<\/strong><\/h4>\n<p>Hippy\u5c06\u4e00\u90e8\u5206\u57fa\u7840JS SDK\u4ee3\u7801\uff0c\u901a\u8fc7\u811a\u672c\u5c06JS\u4ee3\u7801\u8f6c\u6362\u6210\u4e8c\u8fdb\u5236\u96c6\u6210\u5728hippycore\u7684C++\u4ee3\u7801\u91cc\uff0c\u5728\u901a\u8fc7Ctx\u6267\u884c\u8fd9\u4e9bJS\u4ee3\u7801\u3002\u597d\u5904\u662f\uff1a\u89e3\u51b3C++ Module\u8ddfJS\u4fa7\u4ee3\u7801\u4e00\u81f4\u6027\u95ee\u9898\uff08\u5747\u4f7f\u7528C++\u5f62\u5f0f\u52a0\u8f7d\u8c03\u7528\uff09\uff1b\u5bf9\u4e8e\u5e38\u7528\u7684\u57fa\u7840JS\u7684SDK\u4ee3\u7801\uff0c\u4e0d\u7528\u6253\u5305\u5230\u57fa\u7840\u5305\u91cc\uff0c\u53ef\u4ee5\u51cf\u5c11Common\u5305\u5927\u5c0f\uff0c\u53e6\u5916\u804c\u8d23\u4e5f\u5206\u79bb\u3002<\/p>\n<p>\u5176\u4e2d\u5305\u62ecC++ Module\u8ddfJS\u5bf9\u8c61\u7ed1\u5b9a\uff0c\u4ee5\u53caTurboModule\u548cDynamicImport\u5747\u5728\u6b64\u6b65\u9aa4\u8fdb\u884c\u5b9a\u4e49\u5b9e\u73b0\uff1b<\/p>\n<ul>\n<li>\n<h3><strong>Abilities<\/strong><\/h3>\n<\/li>\n<\/ul>\n<p><strong>C++ Module<\/strong>:\u4e0d\u540c\u4e8eNative Module\u5b57\u7b26\u4e32\u6d88\u606f\u6620\u5c04\u548cTurboModule HostObject\u7684\u5b9e\u73b0\uff0cC++ Module\u662f\u5c06HippyCore\u91cc\u6807\u8bb0\u4e3a\u5bfc\u51fa\u7684C++Module\u548c\u5176\u51fd\u6570\u5bf9\u5e94\u5728\u524d\u7aef\u751f\u6210\u4e00\u4e2a\u540d\u5b57\u4e00\u6837\u7684JS\u5bf9\u8c61\u548c\u65b9\u6cd5\u3002Hippy\u91cc\u5e38\u89c1\u7684TimeModule\uff0cContextifyModule\u5747\u662f\u5982\u6b64\u5b9e\u73b0\u3002<\/p>\n<p><strong>TurboModule<\/strong>:\u524d\u6709NativeModule\uff0c\u540e\u6709C++Module\uff0c\u4e3a\u4ec0\u4e48\u8fd8\u6709TurboModle\uff1f<\/p>\n<p>NativeModule\u597d\u5904\u662f\u5bf9\u4e8e\u4e00\u4e9b\u80fd\u529b\u8981\u5206\u7aef\u53bb\u5b9e\u73b0\u7684\uff0c\u4e24\u7aef\u5b9e\u73b0\u8d77\u6765\u6bd4\u8f83\u65b9\u4fbf\uff0c\u4f46\u662f\u5176\u662f\u901a\u8fc7\u5b57\u7b26\u4e32\u6620\u5c04\u5230\u7ec8\u7aef\u65b9\u6cd5\u7684\u65b9\u5f0f\u8fdb\u884c\u8c03\u7528\u4ee5\u53ca\u5b58\u5728JS\u7ebf\u7a0b\u5230NativeModule\u7ebf\u7a0b\u5207\u6362\u6548\u7387\u95ee\u9898\u3002\u200d<\/p>\n<p>C++Module\u7684\u597d\u5904\u5c31\u662f\u5728JS\u7ebf\u7a0b\u76f4\u63a5\u8c03\u7528\u7ed1\u5b9aJS\u5bf9\u8c61\u548c\u65b9\u6cd5\u6267\u884c\uff0c\u6548\u7387\u9ad8\uff0c\u4f46\u662f\u66b4\u9732\u7684Module\u662f\u7528C++\u5b9e\u73b0\uff0c\u5982\u679c\u5206\u53d1\u8c03\u7528\u5230Native\u4fa7\uff0c\u4e00\u4e2a\u662f\u8981\u533a\u5206\u5e73\u53f0\uff0c\u7b2c\u4e8c\u4e2a\u662f\u5206\u53d1\u5230\u4e0a\u5c42Java\u6216\u8005OC\u9700\u8981\u5bf9\u5e94\u7684\u7c7b\u578b\u8f6c\u6362\u3002<\/p>\n<p>\u4e3a\u4e86\u89e3\u51b3\u4e0a\u8ff0\u95ee\u9898\uff0cTuroboModule\u5e94\u8fd0\u800c\u751f\uff0c\u517c\u5177JS\u7ebf\u7a0b\u76f4\u63a5\u8c03\u7528\uff0c\u5e76\u4e14\u4e0d\u540c\u5e73\u53f0\u53ef\u4ee5\u5206\u522b\u5b9e\u73b0\u81ea\u5df1\u7684Turbo\u80fd\u529b\uff0c\u5173\u952e\u662f\u76f4\u63a5\u4f7f\u7528\u7684\u5f15\u64ce\u63d0\u4f9b\u7684HostObject\u65b9\u5f0f\u5b9e\u73b0\uff0c\u76f8\u8f83\u4e8eC++Module \u6548\u7387\u90fd\u66f4\u9ad8\u3002<\/p>\n<p><strong>Dynamic Import<\/strong>:\u52a8\u6001\u5bfc\u5165\u80fd\u529b\uff0c\u5bb9\u8bb8\u5728JS\u4fa7\u52a8\u6001\u52a0\u8f7d\u8fdc\u7a0b\u6216\u8005\u672c\u5730JS\u4ee3\u7801\uff0c\u4e3b\u8981\u4f7f\u7528\u573a\u666f\u662f\u5bf9\u4e8e\u5206\u5305\u52a0\u8f7d\uff0c\u51cf\u5c11\u4e3b\u5305\u5927\u5c0f\uff0c\u63d0\u9ad8\u4e1a\u52a1\u52a0\u8f7d\u5305\u901f\u5ea6\uff1b\u6700\u7ec8\u5b9e\u73b0\u4e5f\u662f\u901a\u8fc7C++Module ContextifyModule\u7684LoadUntrustedContent\u65b9\u6cd5\u6765\u6267\u884c\u8fdc\u7aef\u6216\u8005\u672c\u5730JS\u4ee3\u7801\u5e76\u8fd4\u56de\u7ed9JS\u4fa7\u3002<\/p>\n<p><strong>HippyCore\u5f02\u5e38\u5904\u7406<\/strong>\uff1a<strong>JS\u5f15\u64ce\u63a5\u53e3\u5f02\u5e38<\/strong>\uff0c\u4e0d\u540c\u5f15\u64ce\u5f02\u5e38\u4e0d\u540c\uff08JSI Exception\uff09\uff1b<strong>Native\u5f02\u5e38<\/strong>\uff0c\u4e3b\u8981\u662fNative\u4fa7\u7684\u4ee3\u7801\u8c03\u7528\u4ee5\u53caJS\u65b9\u6cd5\u6ce8\u5165\u5b9e\u73b0\u5f02\u5e38\u3002<\/p>\n<p>JSC\u5f15\u64ce\u548cV8\u5904\u7406\u903b\u8f91\u4e0d\u592a\u4e00\u6837\uff0cJSC\u7684JSI\u63a5\u53e3\u4f1a\u5c06Exception\u901a\u8fc7\u53c2\u6570\u4f20\u9012\u51fa\u6765\uff0cV8\u662f\u901a\u8fc7\u5728\u8c03\u7528\u4e0a\u4e0b\u6587\u521d\u59cb\u5316TryCatch\u5bf9\u8c61\uff0c\u5bf9\u5f02\u5e38\u8fdb\u884c\u6355\u83b7\u3002  <\/p>\n<p>\u6240\u4ee5\u5bf9\u4e8eJSC\u7684JS\u5f02\u5e38\uff0c\u53ea\u9700\u8981\u5904\u7406\u63a5\u53e3\u7684Exception\u5c31\u884c\uff1bV8\u5904\u7406TryCatch\u5bf9\u8c61\u6355\u83b7\u7684\u5f02\u5e38\u5c31\u53ef\u4ee5\u3002\u200d<\/p>\n<pre><code>SValueRef js_error = nullptr;\n  JSValueRef value_ref =\n      JSObjectGetProperty(context_, global_obj, name_ref, &amp;js_error);\n  bool is_str = JSValueIsString(context_, value_ref);\n  JSStringRelease(name_ref);<\/code><\/pre>\n<p><strong>Native\u5f02\u5e38<\/strong>\u4e00\u822c\u5c31\u662f\u5e73\u53f0\u76f8\u5173\u7684\u5f02\u5e38\uff0c\u6bd4\u5982OC\u5c31\u662fNSException\uff0c\u5728\u53cc\u5411\u901a\u4fe1\u4ee5\u53ca\u5404\u79cdJS\u63a5\u53e3\u6ce8\u5165\u5b9e\u73b0\u5904\u52a0Try-Catch\u8fdb\u884c\u6355\u83b7\u3002<\/p>\n<p><strong>2\uff09\u603b\u7ed3<\/strong><\/p>\n<p>\u901a\u8fc7\u4ee5\u4e0a\u67b6\u6784\u5206\u6790\uff0cHippy\u6574\u4e2a\u5b9e\u73b0\u6d41\u7a0b\u90fd\u5df2\u7ecf\u53d8\u5f97\u975e\u5e38\u6e05\u6670\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Hermes\u7684\u80fd\u529b\u5c06\u4e0a\u8ff0\u80fd\u529b\u5747\u5b9e\u73b0\u4e00\u4e0b\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043150776\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><\/p>\n<p><strong>Hermes\u63a5\u5165\u5bf9\u6bd4<\/strong><\/p>\n<p><strong>1\uff09\u6027\u80fd<\/strong><\/p>\n<p>\u57fa\u4e8e\u5df2\u7ecf\u4e0a\u7ebf\u7684\u4e1a\u52a1\u6027\u80fd\u7edf\u8ba1\u6570\u636e\uff08\u6570\u636e\u53d6\u81f312\u670812\u65e5\uff09\uff0c\u5bf9\u6bd4\u5982\u4e0b\uff1a<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043150777\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><\/p>\n<p>\u53ef\u4ee5\u770b\u5230\u5305\u52a0\u8f7d\u6267\u884c\u8017\u65f6\u5df2\u7ecf\u88ab\u5f7b\u5e95\u6253\u4e0b\u6765\u4e86\uff0870-80%\u5e45\u5ea6\uff09\uff0c\u8fdb\u800c\u6781\u5927\u964d\u4f4e\u4e86\u9996\u5e27\u8017\u65f6\u3002<\/p>\n<p>\u53e6\u5916\u901a\u8fc7\u7ebf\u4e0a\u4e1a\u52a1\u5927\u76d8\u6574\u4f53\u8017\u65f6\u66f2\u7ebf\u56fe\u53ef\u4ee5\u66f4\u76f4\u89c2\u770b\u5230\u6548\u679c\uff08\u5927\u90e8\u5206\u4e1a\u52a1\u6ca1\u6709\u5168\u91cf\uff0c\u6240\u4ee5\u8fd8\u4f1a\u6709\u6301\u7eed\u4e0b\u964d\u7684\u8d8b\u52bf\uff09\uff1a<\/p>\n<h2><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043150778\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><\/h2>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043150779\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><\/p>\n<p><strong>2\uff09\u5185\u5b58<\/strong><\/p>\n<p>\u5728\u6ed1\u52a8\u76f8\u540c\u7684\u7684List Item\u7684\u60c5\u51b5\u4e0b\uff0cHippy Hermes\u548cJSC\u7684\u5185\u5b58\u589e\u91cf\u5dee\u522b\u4e0d\u5927\u3002\u6839\u636e\u5b98\u65b9\u6587\u6863\u4ecb\u7ecdHermes\u5e94\u8be5\u662f\u7565\u4f18\u4e8eJSC\u7684\uff0c\u6240\u4ee5\u8fd9\u91cc\u4e0d\u6392\u9664Hippy\u6216\u8005\u524d\u7aefSDK\u8fd8\u6709\u4f18\u5316\u7a7a\u95f4\u3002<\/p>\n<p><strong>3\uff09Crash<\/strong><\/p>\n<p>Hippy\u7684JSC\u76f8\u5173\u7684Crash\u7387\u8f83\u9ad8\uff0c\u6bd4\u8f83\u96be\u4fee\u6539\u3002Hermes\u4e5f\u6709\u4e00\u5b9a\u7684crash\uff0c\u4f46\u662f\u4ece\u76ee\u524d\u7684\u5bf9\u6bd4\u6765\u770b\uff0c\u6570\u91cf\u7ea7\u8f83JSC\u5c11\u5f88\u591a\u3002\u4ee512\u670812\u65e5\uff0ciOS 13.4.0.5401\u7248\u672c\u7684\u6570\u636e\u5bf9\u6bd4\u6765\u770b\uff0cHermes\u7684Crash\u7387\u4e3aJSC\u768450%\uff0c\u4e5f\u5c31\u662f\u8bf4\u5982\u679c\u5207\u6362\u5230Hermes\u4e0a\u7684\u8bdd\uff0c\u76f8\u5173\u5f15\u64ce\u7684Crash\u4f1a\u4e0b\u964d\u4e00\u534a\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043150780\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><\/p>\n<p>JSC Crash\u5173\u952e\u8bcd\uff1ajscctx\/HippyJSCExecutor \u00a0 Hermes Crash\u5173\u952e\u8bcd\uff1ahermes\/HippyHermesExecutor<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043150781\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><\/p>\n<p><strong>\u5c55\u671b<\/strong><\/p>\n<p>\u76ee\u524dHermes\u5df2\u7ecf\u5728QB iOS\u7248\u672c\u4e0a\u4e0a\u7ebf\u3002\u4e1a\u52a1\u63a5\u5165\u6210\u672c\u975e\u5e38\u4f4e\uff0c\u65e0\u9700\u4fee\u6539\u4e00\u884c\u4ee3\u7801\uff0c\u53ea\u9700\u8981\u6253\u5305\u7684\u65f6\u5019\u4f7f\u7528\u63d2\u4ef6\uff0c\u8f93\u51faBytecode\u6587\u4ef6\u5373\u53ef\u3002\u63a5\u5165\u4e0a\u7ebf\u7684\u4e1a\u52a1\u5df2\u7ecf\u904d\u5e03\u4fe1\u606f\u6d41\u3001\u9605\u8bfb\u3001\u5546\u4e1a\u3001\u641c\u7d22\u7b49\u5404\u4e2a\u4e1a\u52a1\u573a\u666f\u3002<\/p>\n<p>\u5f53\u7136\uff0c\u8fd8\u6709\u5f88\u591a\u4e8b\u60c5\u53ef\u4ee5\u6301\u7eed\u505a\u4ee5\u6301\u7eed\u63d0\u5347\u6027\u80fd\uff1a\u00a0Android\u63a5\u5165\uff0c\u5bf9\u6bd4V8\u6027\u80fd\uff0c\u5df2\u7ecf\u63a5\u8fd1\u5b8c\u6210\uff08\u5bf9\u6bd4V8\uff0c\u5728\u4f4e\u4e2d\u7aef\u624b\u673a\u4e0a\u6709\u8fd150%\u7684\u6027\u80fd\u63d0\u5347\uff09\u3002Hermes\u8c03\u8bd5\u80fd\u529b\uff0c\u53ef\u4ee5\u4f7f\u7528Hermes\u5728Chrome\u4e0a\u8c03\u8bd5JS\u4ee3\u7801\u3002\u00a0\u57fa\u4e8eHermes\u7684\u5185\u5b58\u8c03\u8bd5\u8bca\u65ad\u5de5\u5177\u3002\u672c\u6587\u4e0d\u5c55\u5f00\u8d58\u8ff0\uff0c\u6b22\u8fce\u5404\u4f4d\u5f00\u53d1\u8005\u4ea4\u6d41\u63a2\u7d22\uff5e<\/p>\n<p>\u901a\u8fc7\u63a5\u5165Hermes\uff0c\u53ef\u4ee5\u8ba9\u4e1a\u52a1\u66f4\u591a\u7684\u5173\u6ce8\u5728JS\u4e1a\u52a1\u903b\u8f91\u91cc\uff0c\u8ba9\u524d\u7f6eSDK\u6d41\u7a0b\u7684\u8017\u65f6\u4e0d\u518d\u662f\u6027\u80fd\u74f6\u9888\u3002\u5e0c\u671b\u672c\u6587\u80fd\u7ed9\u4f60\u7075\u611f\u3002<\/p>\n<p><strong>\u516c\u4f17\u53f7\u56de\u590d\u201c<strong><em><em>\u6027\u80fd\u4f18\u5316<\/em><\/strong><\/em>\u201c\uff0c\u67e5\u770b\u4f5c\u8005\u63a8\u8350\u7684\u66f4\u591a\u6587\u7ae0<\/strong>\u200d\u200d\u200d<\/p>\n<p><strong>\u817e\u8baf\u5de5\u7a0b\u5e08\u6280\u672f\u5e72\u8d27\u76f4\u8fbe\uff1a<\/strong><\/p>\n<p>1\u3001<a href=\"https:\/\/link.segmentfault.com\/?enc=ghV3jKA6RcT3aEzjyOkrqw%3D%3D.N0ngBAPD5wKSep%2FzQQOn0jzywdqJKxb5qoaLGDj9H9iapwhoe%2F53A8c8JD2kjmgpXItv8KtvU%2FLYEGuDiFUNRCCIEnmbSALOI3abthGBj2jNhTfFHwPyAB88HAQLsLWBdZqeWNspg1IU%2FroMXig4CbKi5Y%2B2y%2BV41009A18VXeXUCFSTRKvfiCEKunfEITzZBWgVBxvH7rSrMYZYMinAEAX85a6MnLgCZ0jDDdcVdyF%2F8p6YQ7zOiUHXtIi4Wqw2GEmWCNg1akk8thJwmFp%2Fm9%2BXwaErdt8pKjTh1k4Hbac%3D\" rel=\"nofollow\">H5\u5f00\u5c4f\u4ece\u9f9f\u901f\u5230\u95ea\u7535\uff0c\u4f01\u5fae\u662f\u5982\u4f55\u505a\u5230\u7684<\/a><\/p>\n<p>2\u3001<a href=\"https:\/\/link.segmentfault.com\/?enc=KaPpggf1LS7TX4IMRH63Yg%3D%3D.Fgr7GBnsqHjqZMRqKAe5frK5LStpy4r3LyMNi4W9HMFVm9zbq5%2BzZ6Z4Rk%2FjeJJSpFXQDJ%2BNKe1ur5sfhy5ojWtXz0%2BnvPff3KfSyryZBOX52SaCz302SmoJZnG2XzE5AFIWWlFHnRandVZpD%2FJmQrB%2FLw8pCeb2ZbYZMpaTO0Ox7%2FXc0lBYQnvUwHRq0m3KWlpkAcNz%2FK2Hr3k9dhA0zRrU3Uix4AbfpYxU84t12T6RYp3vpLgkgchnpGlxk3mMd34g3HJjpqTara4mot7rGwt6YD6N2Yn8OTe1eCJJTPw%3D\" rel=\"nofollow\">\u5185\u5b58\u6cc4\u9732\uff1f\u817e\u8baf\u5de5\u7a0b\u5e082\u4e2a\u538b\u7bb1\u5e95\u7684\u65b9\u6cd5\u548c\u5de5\u5177<\/a>  <\/p>\n<p>3\u3001<a href=\"https:\/\/link.segmentfault.com\/?enc=lft4FPSMFIGAPv%2B%2BSw9PYQ%3D%3D.nL9q3fSaBP2LLcsCa4THAZNnv%2B%2BYPvgInmaUm1JKDDBXk6lTZmyTiXC260VUc6s1GXkKwYhpVMXO75DMjnYJNIbmU%2FiEHRctbUWg7nHSbaVnIbAvSzy6IdgphwWFTFZS0qaJ0N0KqnD%2FEAqVs44MJp2yiy9l5uKClMtRGgecvS5lt1HgS9NF8SZDWDmgfMbo6Mcr%2BmnWo4AXZXin%2FjsMhhOk3soCUPirFDeoxUjiLvDzsKol5EBtobQ6D37LIScCPtLMHCnxG%2Bf%2FpDKCYnfJ4viQom3YCXTTV0YJbjTvQ9k%3D\" rel=\"nofollow\">\u5168\u7f51\u9996\u6b21\u63ed\u79d8\uff1a\u5fae\u79d2\u7ea7\u201c\u590d\u6d3b\u201d\u7f51\u7edc\u7684HARP\u534f\u8bae\u53ca\u5176\u5173\u952e\u6280\u672f<\/a><\/p>\n<p>4\u3001<a href=\"https:\/\/link.segmentfault.com\/?enc=0COudh0Q%2FFdOsuf6UdZ1Rw%3D%3D.XFluPMsmvVr5v68xY2qemhIHdRrQ7oLI1WGuI5NHgn7i9EA38OsYrjnsFY7PJBZjT0R2OlR1se%2FMvWItme5%2FGX9Qe9Nx%2FgSeb%2F2u6OWxqYxN%2B%2F7icVD3ScyHRd4pxqCKdL%2BNnAC0oECePmmlNKyaP8ZaMhvZNkHAmFwSRroQTiwrNsDQpbUOAjSaDbT0zsmkMg5nXeZH5Ci32F9BTQD%2BtyYtQAtCk74Ml7MkBHzM%2F1q80bWXGVPsxCn36%2FP9uEkRlkytHrHxpbLt28La6xeUUcoKQDL1%2BjGelnDLr50w%2FoQ%3D\" rel=\"nofollow\">\u4e07\u5b57\u907f\u5751\u6307\u5357\uff01C++\u7684\u7f3a\u9677\u4e0e\u601d\u8003\uff08\u4e0b\uff09<\/a><\/p>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000043150756\">https:\/\/segmentfault.com\/a\/1190000043150756<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5bfc\u8bfb\uff5cHippy\u4f7f\u7528JS\u5f15\u64ce\u8fdb\u884c\u5f02\u6b65\u6e32\u67d3\uff0c\u5728\u7528\u6237\u4ece\u70b9\u51fb\u5230\u6253\u5f00\u9996\u5c4f\u53ef\u4ea4\u4e92\u8fc7\u7a0b\u4e2d\u4f1a\u6709\u4e00\u5b9a\u7684\u8017\u65f6\uff0c\u5f71\u54cd\u7528\u6237\u4f53\u9a8c\u3002\u5982\u4f55 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-10007010","post","type-post","status-publish","format-standard","hentry","category-share"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10007010","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10007010"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10007010\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10007010"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10007010"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10007010"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}