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