Raw identifiers are backtick-delimited identifiers that can contain any
non-identifier character other than the backtick itself, CR, LF, or other
non-printable ASCII code units, and which are also not composed entirely
of operator characters.
Check to see whether we can index the given decl
before reporting it as a container, walking up to
a parent if we need to. This also lets us simplify
the AnyPattern handling a bit.
rdar://126137541
References associated with a `VarDecl` had no `RelationContainedBy` role, resulting in "orphaned" references. From the perspective of identifying unused code (in tools using the index, like [Periphery](https://github.com/peripheryapp/periphery)), this made it impossible to identify that a variable's type, initializer and custom attributes are associated with the variable.
Resolves: [SR-13766](https://bugs.swift.org/browse/SR-13766)
The backing property for 'foo' is now '_foo', and the projected value '$foo'.
This updates Indexing to report occurrences of foo within both $foo and
_foo occurrences (rather than just $foo - the old _foo).
FindRelatedIdents was similarlar updated, so it reports 'foo' ranges in both
_foo and $foo.
CursorInfo now reports the USR, documentation, and location of foo when invoked
occurrences of $foo or _foo, but now leaves the name, type, and annotated
declaration of _foo/$foo as is. Having the same USR ensures rename invoked on
any of them will still rename via foo. Reporting foo's documentation comment
instead is just to present something more useful to the user.
Make sure they handle the case when a property wrapper type's constructor is
called with the first argument coming from the var initializer, and the rest
from the custom attribute's argument.
This patch achieves this by updating indexing to reporting the position of
`foo` in occurrences of `$foo` as an occurrence of the `foo` symbol, so
that renames initiated on occurrences of the `foo` symbol will also result
in occurrences of the `$foo` symbol being updated correctly. This also means
find-references on foo will show places where $foo is used.
Making rename work in the other direction (invoking rename on $foo upating foo
occurrences too) is still todo.
This fixes custom attribute syntax highlighting on parameters and functions
(where function builders can be applied). They weren't being walked in
the function position previously and were walked out of source order in the
parameter position.
It also fixes rename of the property wrapper and function builder type
names that can appear in custom attributes, as well as rename of property
wrapper constructors, that can appear after the type names, e.g.
`@Wrapper(initialValue: 10)`. The index now also records these constructor
occurrences, along with implicit occurrences whenever a constructor is
called via default value assignment, e.g. `@Wrapper var foo = 10`, so that
finding calls/references to the constructor includes these locations.
Resolves rdar://problem/49036613
Resolves rdar://problem/50073641
