evanw/esbuild v0.17.9

on GitHub

Parse rest bindings in TypeScript types (#2937)

Previously esbuild was unable to parse the following valid TypeScript code:

let tuple: (...[e1, e2, ...es]: any) => any

This release includes support for parsing code like this.

Fix TypeScript code translation for certain computed declare class fields (#2914)

In TypeScript, the key of a computed declare class field should only be preserved if there are no decorators for that field. Previously esbuild always preserved the key, but esbuild will now remove the key to match the output of the TypeScript compiler:

// Original code
declare function dec(a: any, b: any): any
declare const removeMe: unique symbol
declare const keepMe: unique symbol
class X {
    declare [removeMe]: any
    @dec declare [keepMe]: any
}

// Old output
var _a;
class X {
}
removeMe, _a = keepMe;
__decorateClass([
  dec
], X.prototype, _a, 2);

// New output
var _a;
class X {
}
_a = keepMe;
__decorateClass([
  dec
], X.prototype, _a, 2);

Fix a crash with path resolution error generation (#2913)

In certain situations, a module containing an invalid import path could previously cause esbuild to crash when it attempts to generate a more helpful error message. This crash has been fixed.