Bump esbuild from 0.13.12 to 0.15.6

[dependabot[bot]]

Bumps esbuild from 0.13.12 to 0.15.6.

Release notes

Sourced from esbuild's releases.

v0.15.6

• Lower for await loops (#1930)

  This release lowers for await loops to the equivalent for loop containing await when esbuild is configured such that for await loops are unsupported. This transform still requires at least generator functions to be supported since esbuild's lowering of await currently relies on generators. This new transformation is mostly modeled after what the TypeScript compiler does. Here's an example:

  async function f() {
    for await (let x of y)
      x()
  }
  

  The code above will now become the following code with --target=es2017 (omitting the code for the __forAwait helper function):

  async function f() {
    try {
      for (var iter = __forAwait(y), more, temp, error; more = !(temp = await iter.next()).done; more = false) {
        let x = temp.value;
        x();
      }
    } catch (temp) {
      error = [temp];
    } finally {
      try {
        more && (temp = iter.return) && await temp.call(iter);
      } finally {
        if (error)
          throw error[0];
      }
    }
  }
  

• Automatically fix invalid supported configurations (#2497)

  The --target= setting lets you tell esbuild to target a specific version of one or more JavaScript runtimes such as chrome80,node14 and esbuild will restrict its output to only those features supported by all targeted JavaScript runtimes. More recently, esbuild introduced the --supported: setting that lets you override which features are supported on a per-feature basis. However, this now lets you configure nonsensical things such as --supported:async-await=false --supported:async-generator=true. Previously doing this could result in esbuild building successfully but producing invalid output.

  Starting with this release, esbuild will now attempt to automatically fix nonsensical feature override configurations by introducing more overrides until the configuration makes sense. So now the configuration from previous example will be changed such that async-await=false implies async-generator=false. The full list of implications that were introduced is below:

  • async-await=false implies:

    • async-generator=false
    • for-await=false
    • top-level-await=false

  • generator=false implies:

    • async-generator=false

  • object-accessors=false implies:

    • class-private-accessor=false

... (truncated)

Changelog

Sourced from esbuild's changelog.

0.15.6

• Lower for await loops (#1930)

  This release lowers for await loops to the equivalent for loop containing await when esbuild is configured such that for await loops are unsupported. This transform still requires at least generator functions to be supported since esbuild's lowering of await currently relies on generators. This new transformation is mostly modeled after what the TypeScript compiler does. Here's an example:

  async function f() {
    for await (let x of y)
      x()
  }
  

  The code above will now become the following code with --target=es2017 (omitting the code for the __forAwait helper function):

  async function f() {
    try {
      for (var iter = __forAwait(y), more, temp, error; more = !(temp = await iter.next()).done; more = false) {
        let x = temp.value;
        x();
      }
    } catch (temp) {
      error = [temp];
    } finally {
      try {
        more && (temp = iter.return) && await temp.call(iter);
      } finally {
        if (error)
          throw error[0];
      }
    }
  }
  

• Automatically fix invalid supported configurations (#2497)

  The --target= setting lets you tell esbuild to target a specific version of one or more JavaScript runtimes such as chrome80,node14 and esbuild will restrict its output to only those features supported by all targeted JavaScript runtimes. More recently, esbuild introduced the --supported: setting that lets you override which features are supported on a per-feature basis. However, this now lets you configure nonsensical things such as --supported:async-await=false --supported:async-generator=true. Previously doing this could result in esbuild building successfully but producing invalid output.

  Starting with this release, esbuild will now attempt to automatically fix nonsensical feature override configurations by introducing more overrides until the configuration makes sense. So now the configuration from previous example will be changed such that async-await=false implies async-generator=false. The full list of implications that were introduced is below:

  • async-await=false implies:

    • async-generator=false
    • for-await=false
    • top-level-await=false

  • generator=false implies:

    • async-generator=false

  • object-accessors=false implies:

... (truncated)

Commits

• 78a1e00 publish 0.15.6 to npm
• 6414eeb follow-up to #2457
• 4eb1713 fix: don't write pnpapi binary into own pkg (#2457)
• 7cae769 remove an unused test script
• 632d8d1 fix invalid runtime code possible with supported
• d317a42 tests: remove hack from when import() was esm-only
• e7169db implement lowering of for await loops
• af4d944 fix #2496: minify removes useless break statements
• 501abf7 fix #2497: correct invalid feature configurations
• 2026535 avoid duplicate errors for unsupported functions
• Additional commits viewable in compare view

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