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chore(deps): update dependency esbuild to ^0.18.8 #336

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merged 1 commit into from
Jun 25, 2023

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@renovate renovate bot commented Jun 25, 2023

Mend Renovate

This PR contains the following updates:

Package Change Age Adoption Passing Confidence
esbuild ^0.18.7 -> ^0.18.8 age adoption passing confidence

Release Notes

evanw/esbuild

v0.18.8

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  • Implement transforming async generator functions (#​2780)

    With this release, esbuild will now transform async generator functions into normal generator functions when the configured target environment doesn't support them. These functions behave similar to normal generator functions except that they use the Symbol.asyncIterator interface instead of the Symbol.iterator interface and the iteration methods return promises. Here's an example (helper functions are omitted):

    // Original code
    async function* foo() {
      yield Promise.resolve(1)
      await new Promise(r => setTimeout(r, 100))
      yield *[Promise.resolve(2)]
    }
    async function bar() {
      for await (const x of foo()) {
        console.log(x)
      }
    }
    bar()
    
    // New output (with --target=es6)
    function foo() {
      return __asyncGenerator(this, null, function* () {
        yield Promise.resolve(1);
        yield new __await(new Promise((r) => setTimeout(r, 100)));
        yield* __yieldStar([Promise.resolve(2)]);
      });
    }
    function bar() {
      return __async(this, null, function* () {
        try {
          for (var iter = __forAwait(foo()), more, temp, error; more = !(temp = yield iter.next()).done; more = false) {
            const x = temp.value;
            console.log(x);
          }
        } catch (temp) {
          error = [temp];
        } finally {
          try {
            more && (temp = iter.return) && (yield temp.call(iter));
          } finally {
            if (error)
              throw error[0];
          }
        }
      });
    }
    bar();

    This is an older feature that was added to JavaScript in ES2018 but I didn't implement the transformation then because it's a rarely-used feature. Note that esbuild already added support for transforming for await loops (the other part of the asynchronous iteration proposal) a year ago, so support for asynchronous iteration should now be complete.

    I have never used this feature myself and code that uses this feature is hard to come by, so this transformation has not yet been tested on real-world code. If you do write code that uses this feature, please let me know if esbuild's async generator transformation doesn't work with your code.


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changeset-bot bot commented Jun 25, 2023

⚠️ No Changeset found

Latest commit: a521052

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

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@renovate renovate bot merged commit d0ba29f into main Jun 25, 2023
@renovate renovate bot deleted the renovate/esbuild-0.x branch June 25, 2023 10:01
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