Follow-up from [this discussion](https://github.com/angular/angular/pull/33419#discussion_r339296216). In Ivy we don't use the schema to validate tag names, but instead we use feature detection to figure out whether an element is supported. While this should generally be more accurate, it'll also end up throwing for some more innocent cases. E.g. now Ivy throws an error for `main` elements in IE which is accurate since IE doesn't support the element, but is annoying since there is no functionality attached.
These changes switch to logging a warning instead, similarly to what we're doing for unknown properties.
PR Close#34524
Previously, in cases were values were expensive to compute and would be
used multiple times, a combination of a regular `Map` and a helper
function (`getOrDefault()`) was used to ensure values were only computed
once.
This commit uses a special `Map`-like structure to compute and memoize
such expensive values without the need to a helper function.
PR Close#34512
This change should not have any impact on the code's behavior (based on
how the function is currently used), but it will avoid unnecessary work.
PR Close#34512
While different, CommonJS and UMD have a lot in common regarding the
their exports are constructed. Therefore, there was some code
duplication between `CommonJsReflectionHost` and `UmdReflectionHost`.
This commit extracts some of the common bits into a separate file as
helpers to allow reusing the code in both `ReflectionHost`s.
PR Close#34512
Previously, `UmdReflectionHost` would only recognize re-exports of the
form `__export(someIdentifier)` and not `__export(require('...'))`.
However, it is possible in some UMD variations to have the latter format
as well. See discussion in https://github.com/angular/angular/pull/34254/files#r359515373
This commit adds support for re-export of the form
`__export(require('...'))` in UMD.
PR Close#34512
This fix was part of a broader `ngtsc`/`ngcc` fix in 02bab8cf9 (see
there for details). In 02bab8cf9, the fix was only applied to
`CommonJsReflectionHost`, but it is equally applicable to
`UmdReflectionHost`. Later in #34254, the fix was partially ported to
`UmdReflectionHost` by fixing the `extractUmdReexports()` method.
This commit fully fixes `ngcc`'s handling of inline exports for code in
UMD format.
PR Close#34512
The `getProjectAsAttrValue` in `node_selector_matcher` finds the
ProjectAs marker and then additionally checks that the marker appears in
an even index of the node attributes because "attribute names are stored
at even indexes". This is true for "regular" attribute bindings but
classes, styles, bindings, templates, and i18n do not necessarily follow
this rule because there can be an uneven number of them, causing the
next "special" attribute "name" to appear at an odd index. To address
this issue, ensure ngProjectAs is placed right after "regular"
attributes.
PR Close#34617
Previously, some of the examples in the `lazy-loading-ngmodules` guide
were hard-coded.
This commit ensures all examples in the guide are extracted from
docregions in the corresponding example project.
PR Close#34599
Previously, if `UmdRenderingFormatter#addImports()` was called with an
empty list of imports to add (i.e. no new imports were needed), it would
add trailing commas in several locations (arrays, function arguments,
function parameters), thus making the code imcompatible with legacy
browsers such as IE11.
This commit fixes it by ensuring that no trailing commas are added if
`addImports()` is called with an empty list of imports.
This is a follow-up to #34353.
Fixes#34525
PR Close#34545
ngcc computes a dependency graph of entry-points to ensure that
entry-points are processed in the correct order. Previously only the imports
in source files were analysed to determine the dependencies for each
entry-point.
This is not sufficient when an entry-point has a "type-only" dependency
- for example only importing an interface from another entry-point.
In this case the "type-only" import does not appear in the
source code. It only appears in the typings files. This can cause a
dependency to be missed on the entry-point.
This commit fixes this by additionally processing the imports in the
typings program, as well as the source program.
Note that these missing dependencies could cause unexpected flakes when
running ngcc in async mode on multiple processes due to the way that
ngcc caches files when they are first read from disk.
Fixes#34411
// FW-1781
PR Close#34494
The `DependencyHost` implementations were duplicating the "postfix" strings
which are used to find matching paths when resolving module specifiers.
Now the hosts reuse the postfixes given to the `ModuleResolver` that is
passed to the host.
PR Close#34494
Rather than return a new object of dependency info from calls to
`collectDependencies()` we now pass in an object that will be updated
with the dependency info. This is in preparation of a change where
we will collect dependency information from more than one
`DependencyHost`.
Also to better fit with this approach the name is changed from
`findDependencies()` to `collectDependencies()`.
PR Close#34494
The main change here was to remove the updating instructions for
version 9 and instead point to update.angular.io. This ensures
we only have one "source of truth" for update instructions.
This commit also includes updates to error message text to
keep them up-to-date with live error messages (and thus keep
them searchable).
PR Close#34498
Prior to this commit, there were no `advance` instructions generated before `i18nExp` instructions and as a result, lifecycle hooks for components used inside i18n blocks were flushed too late. This commit adds the logic to generate `advance` instructions in front of `i18nExp` ones (similar to what we have in other places like interpolations, property bindings, etc), so that the necessary lifecycle hooks are flushed before expression value is captured.
PR Close#34436
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George Kalpakas
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