An annotation that may occur multiple times at a single program element, and only on certain program elemenets.
A sequenced annotation is declared simply by having the annotation class
satisfy SequencedAnnotation instead of Annotation. For example
the following would only be allowed on class
declarations,
functions or methods:
alias ExecutableDeclaration => ClassOrInterfaceDeclaration|FunctionDeclaration "Documents a pattern that the annotated element is particpating in" final annotation class Pattern(String name) satisfies SequencedAnnotation<Pattern, ExecutableDeclaration> { }
At runtime a ceylon.language.meta.declaration::Declaration instance
can be queried for its SequencedAnnotation
s of a certain type using
ceylon.language.meta::annotations or ceylon.language.meta::sequencedAnnotations.
Inherited Methods |
Methods inherited from: Object |
Methods inherited from: ConstrainedAnnotation<Value,Values,ProgramElement> |