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fix(ivy): process creation mode deeply before running update mode (#27744)

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Prior to this commit, we had two different modes for change detection
execution for Ivy, depending on whether you called `bootstrap()` or
`renderComponent()`. In the former case, we would complete creation
mode for all components in the tree before beginning update mode for
any component. In the latter case, we would run creation mode and
update mode together for each component individually.

Maintaining code to support these two different execution orders was
unnecessarily complex, so this commit aligns the two bootstrapping
mechanisms to execute in the same order. Now creation mode always
runs for all components before update mode begins.

This change also simplifies our rendering logic so that we use
`LView` flags as the source of truth for rendering mode instead of
`rf` function arguments. This fixed some related bugs (e.g. calling
`ViewRef.detectChanges` synchronously after the view's creation
would create view nodes twice, view queries would execute twice, etc).

PR Close #27744
This commit is contained in:
Kara Erickson
2018-12-18 16:58:51 -08:00
committed by Matias Niemelä
parent f48a00fb0c
commit a20b2f72f2
25 changed files with 384 additions and 303 deletions
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23
packages/core/src/render3/interfaces/view.ts
View File

@ -221,16 +221,25 @@ export const enum LViewFlags {
* back into the parent view, `data` will be defined and `creationMode` will be
* improperly reported as false.
*/
CreationMode = 0b0000001,
CreationMode = 0b000000001,
/**
* Whether or not this LView instance is on its first processing pass.
*
* An LView instance is considered to be on its "first pass" until it
* has completed one creation mode run and one update mode run. At this
* time, the flag is turned off.
*/
FirstLViewPass = 0b000000010,
/** Whether this view has default change detection strategy (checks always) or onPush */
CheckAlways = 0b0000010,
CheckAlways = 0b000000100,
/** Whether or not this view is currently dirty (needing check) */
Dirty = 0b0000100,
Dirty = 0b000001000,
/** Whether or not this view is currently attached to change detection tree. */
Attached = 0b0001000,
Attached = 0b000010000,
/**
* Whether or not the init hooks have run.
@ -239,13 +248,13 @@ export const enum LViewFlags {
* runs OR the first cR() instruction that runs (so inits are run for the top level view before
* any embedded views).
*/
RunInit = 0b0010000,
RunInit = 0b000100000,
/** Whether or not this view is destroyed. */
Destroyed = 0b0100000,
Destroyed = 0b001000000,
/** Whether or not this view is the root view */
IsRoot = 0b1000000,
IsRoot = 0b010000000,
}
/**