Previously we assumed that all input and ouput paths for broccoli trees are immutable, that turned out to be
incorrect.
By adding a tree stabilizer plugin in front of each diffing plugin, we ensure that the input trees
are stable. The stabilization is done via symlinks which is super cheap on platforms that support
symlinks. On Windows we currently copy the whole input directory, which is far from ideal. We should
investagate if using move operation on Windows is ok in the future to improve performance.
Closes#2051
Before this PR there were only 2 zones: root zone = outer zone > inner
zone.
This PR creates the outer zone as a fork of the root zone: root > outer
> inner.
By doing this it is possible to detected microtasks scheduling in the
outer zone and run the change detection less often (no more than one
time per VM turn).
The PR also introduce a Promise monkey patch for the JS implementation.
It makes Promises aware of microtasks and again allow running the change
detection only once per turn.
tree-differ:
- export both TreeDiffer and DiffResult interface
diffing-broccoli-plugin:
- factory class for wrapping DiffingBroccoliPlugins and turning them into BroccoliTrees
broccoli-dest-copy:
- refactor into DiffingBroccoliPlugin
broccoli-traceur:
- refactor into DiffingBroccoliPlugin
This removes .es6 files which are pure duplicates of a
.ts file in the same folder.
Next we need to remove .js files as well, and remove karma preprocessors for dart.
Igor Minar
Victor Berchet
Alex Eagle
vsavkin
Rado Kirov