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v0.15.11

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@github-actions github-actions released this 14 Oct 14:23
  • Fix various edge cases regarding template tags and this (#2610)

    This release fixes some bugs where the value of this wasn't correctly preserved when evaluating template tags in a few edge cases. These edge cases are listed below:

    async function test() {
      class Foo { foo() { return this } }
      class Bar extends Foo {
        a = async () => super.foo``
        b = async () => super['foo']``
        c = async (foo) => super[foo]``
      }
      function foo() { return this }
      const obj = { foo }
      const bar = new Bar
      console.log(
        (await bar.a()) === bar,
        (await bar.b()) === bar,
        (await bar.c('foo')) === bar,
        { foo }.foo``.foo === foo,
        (true && obj.foo)`` !== obj,
        (false || obj.foo)`` !== obj,
        (null ?? obj.foo)`` !== obj,
      )
    }
    test()

    Each edge case in the code above previously incorrectly printed false when run through esbuild with --minify --target=es6 but now correctly prints true. These edge cases are unlikely to have affected real-world code.