Sourced from esbuild's releases.
v0.19.11
Fix TypeScript-specific class transform edge case (#3559)
The previous release introduced an optimization that avoided transforming
super()in the class constructor for TypeScript code compiled withuseDefineForClassFieldsset tofalseif all class instance fields have no initializers. The rationale was that in this case, all class instance fields are omitted in the output so no changes to the constructor are needed. However, if all of this is the case and there are#privateinstance fields with initializers, those private instance field initializers were still being moved into the constructor. This was problematic because they were being inserted before the call tosuper()(sincesuper()is now no longer transformed in that case). This release introduces an additional optimization that avoids moving the private instance field initializers into the constructor in this edge case, which generates smaller code, matches the TypeScript compiler's output more closely, and avoids this bug:// Original code class Foo extends Bar { #private = 1; public: any; constructor() { super(); } }// Old output (with esbuild v0.19.9) class Foo extends Bar { constructor() { super(); this.#private = 1; } #private; }
// Old output (with esbuild v0.19.10) class Foo extends Bar { constructor() { this.#private = 1; super(); } #private; }
// New output class Foo extends Bar { #private = 1; constructor() { super(); } }
Minifier: allow reording a primitive past a side-effect (#3568)
The minifier previously allowed reordering a side-effect past a primitive, but didn't handle the case of reordering a primitive past a side-effect. This additional case is now handled:
// Original code function f() { let x = false;
... (truncated)
Sourced from esbuild's changelog.
0.19.11
Fix TypeScript-specific class transform edge case (#3559)
The previous release introduced an optimization that avoided transforming
super()in the class constructor for TypeScript code compiled withuseDefineForClassFieldsset tofalseif all class instance fields have no initializers. The rationale was that in this case, all class instance fields are omitted in the output so no changes to the constructor are needed. However, if all of this is the case and there are#privateinstance fields with initializers, those private instance field initializers were still being moved into the constructor. This was problematic because they were being inserted before the call tosuper()(sincesuper()is now no longer transformed in that case). This release introduces an additional optimization that avoids moving the private instance field initializers into the constructor in this edge case, which generates smaller code, matches the TypeScript compiler's output more closely, and avoids this bug:// Original code class Foo extends Bar { #private = 1; public: any; constructor() { super(); } }// Old output (with esbuild v0.19.9) class Foo extends Bar { constructor() { super(); this.#private = 1; } #private; }
// Old output (with esbuild v0.19.10) class Foo extends Bar { constructor() { this.#private = 1; super(); } #private; }
// New output class Foo extends Bar { #private = 1; constructor() { super(); } }
Minifier: allow reording a primitive past a side-effect (#3568)
The minifier previously allowed reordering a side-effect past a primitive, but didn't handle the case of reordering a primitive past a side-effect. This additional case is now handled:
// Original code function f() {
... (truncated)
6ee8225
publish 0.19.11 to npmf8ae3af
fix #3561:
treeshaking of known Symbol instances0811058
switch define data to flagsf5f8ff8
fix #3568:
can reorder primitive past side-effect914f608
fix #3558:
put the stop() api call back2aa166b
fix #3559:
fix recent class transform regression55e1127
publish 0.19.10 to npmd968af2
fix #3511:
@__NO_SIDE_EFFECTS__ with templates00c4ebe
fix #3546:
don't transform require glob importse1b7050
fix #3319:
missing symbol usage in glob transform