JoostK 4945274080 perf(compiler): optimize cloning cursors state (#34332) ...

On a large compilation unit with big templates, the total time spent in
the `PlainCharacterCursor` constructor was 470ms. This commit applies
two optimizations to reduce this time:

1. Avoid the object spread operator within the constructor, as the
generated `__assign` helper in the emitted UMD bundle (ES5) does not
optimize well compared to a hardcoded object literal. This results in a
significant performance improvement. Because of the straight-forward
object literal, the VM is now much better able to optimize the memory
allocations which makes a significant difference as the
`PlainCharacterCursor` constructor is called in tight loops.

2. Reduce the number of `CharacterCursor` clones. Although cloning
itself is now much faster because of the optimization above, several
clone operations were not necessary.

Combined, these changes reduce the total time spent in the
`PlainCharacterCursor` constructor to just 10ms.

PR Close #34332

2019-12-12 14:06:37 -08:00

..

design

docs(compiler): fix typos and spelling (#34008)

2019-12-03 16:05:32 -08:00

src

perf(compiler): optimize cloning cursors state (#34332)

2019-12-12 14:06:37 -08:00

test

fix(compiler): ensure localized strings are ES5 compatible for JIT mode (#34265)

2019-12-06 13:03:46 -08:00

testing

build: remove unreferenced tsconfig-build.json files (#30858)

2019-06-05 09:03:36 -07:00

BUILD.bazel

build: convert entry_point to label (#30627)

2019-06-11 00:03:11 +00:00

compiler.ts

build: roll up to named .js files rather than 'index.js' (#19190)

2017-09-19 16:59:18 -07:00

index.ts

build: roll up to named .js files rather than 'index.js' (#19190)

2017-09-19 16:59:18 -07:00

package.json

build: set up all packages to publish via wombot proxy (#33747)

2019-11-13 11:34:33 -08:00

public_api.ts

build: publish tree of files rather than FESMs (#18541)

2017-08-31 15:34:50 -07:00