TypeParameters.ceylon
import ceylon.ast.core {
Node,
TypeParameters
}
import com.redhat.ceylon.compiler.typechecker.tree {
JNode=Node,
Tree {
JTypeParameterList=TypeParameterList
}
}
import ceylon.interop.java {
CeylonIterable
}
"Converts a RedHat AST [[TypeParameterList|JTypeParameterList]] to `ceylon.ast` [[TypeParameters]]."
shared TypeParameters typeParametersToCeylon(JTypeParameterList typeParameters, Anything(JNode,Node) update = noop) {
assert (nonempty params = CeylonIterable(typeParameters.typeParameterDeclarations).collect(propagateUpdate(typeParameterToCeylon, update)));
value result = TypeParameters(params);
update(typeParameters, result);
return result;
}
"Compiles the given [[code]] for Type Parameters
into [[TypeParameters]] using the Ceylon compiler
(more specifically, the rule for `typeParameters`)."
shared TypeParameters? compileTypeParameters(String code, Anything(JNode,Node) update = noop) {
if (exists jTypeParameters = createParser(code).typeParameters()) {
return typeParametersToCeylon(jTypeParameters, update);
} else {
return null;
}
}