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在 GitHub 查看Prepack emits if-statements with no consequent or alternate code
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#2,220 创建于 2018年7月6日
Instant Renderenhancementhelp wantedlevel 1 (super easy)priority: lowserializer
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描述
This
(function () {
let n = global.__abstract ? __abstract("number", "23") : 23;
if (n === 42) {
let d = Date.now(); // dead pure generator entry
}
})();
prepacks to
if (23 === 42) {}
which is obviously suboptimal.
During its fixpoint computation, the visitor should not visit the condition until at least one generator entry cannot be omitted.