This commit adds support for tracking of used constants in
source files. For every constant used in a source file, class
that defines the constant and the constant name are tracked.
Value of the constant can be obtained using
annotation processing APIs, so if the constant value changes, a source file
using it has to be reprocessed.
#KT-23880
Handle annotations with @Inherited. This is important for
the aggregating APs, as the current implementation passes all sources
annotated with claimed aggregating annotations.
Issue is https://youtrack.jetbrains.com/issue/KT-23880
Add support for incremental annotation processors in KAPT. These
processors conform to https://docs.gradle.org/current/userguide/java_plugin.html#sec:incremental_annotation_processing
specification.
Support is provided by using javac compiler APIs and
recording the source file structure. At runtime, processors
are instrumented with custom Filer that is used to keep track of generated
files. In order to support classpath changes, stub generation task is
used to generated a list of changed FQCNs, and this is simply used by KAPT.
Both worker and non-worker mode are supported.
#KT-23880
Ivan Gavrilovic