DefaultedCallableParameter.ceylon
import ceylon.ast.core {
DefaultedCallableParameter,
Type,
VoidModifier,
Annotations,
CallableParameter
}
import com.redhat.ceylon.compiler.typechecker.tree {
Tree {
JFunctionalParameterDeclaration=FunctionalParameterDeclaration,
JLazySpecifierExpression=LazySpecifierExpression,
JMethodDeclaration=MethodDeclaration,
JStaticType=StaticType,
JVoidModifier=VoidModifier
}
}
import ceylon.interop.java {
CeylonIterable
}
"Converts a RedHat AST [[FunctionalParameterDeclaration|JFunctionalParameterDeclaration]] to a `ceylon.ast` [[DefaultedCallableParameter]]."
shared DefaultedCallableParameter defaultedCallableParameterToCeylon(JFunctionalParameterDeclaration defaultedCallableParameter) {
assert (is JMethodDeclaration dec = defaultedCallableParameter.typedDeclaration,
is JLazySpecifierExpression specifier = dec.specifierExpression);
assert (is JStaticType|JVoidModifier jType = dec.type);
Type|VoidModifier type;
switch (jType)
case (is JStaticType) { type = typeToCeylon(jType); }
case (is JVoidModifier) { type = voidModifierToCeylon(jType); }
assert (nonempty parameterLists = CeylonIterable(dec.parameterLists).collect(parametersToCeylon));
return DefaultedCallableParameter {
parameter = CallableParameter {
type;
lIdentifierToCeylon(dec.identifier);
parameterLists;
dec.annotationList exists
then annotationsToCeylon(dec.annotationList)
else Annotations();
};
specifier = lazySpecifierToCeylon(specifier);
};
}
"Compiles the given [[code]] for a Defaulted Callable Parameter
into a [[DefaultedCallableParameter]] using the Ceylon compiler
(more specifically, the rule for a `parameterDeclarationOrRef`)."
shared DefaultedCallableParameter? compileDefaultedCallableParameter(String code) {
if (is JFunctionalParameterDeclaration jParameterDeclarationOrRef = createParser(code).parameterDeclarationOrRef()) {
return defaultedCallableParameterToCeylon(jParameterDeclarationOrRef);
} else {
return null;
}
}