IsCondition.ceylon
import ceylon.ast.core {
IsCondition,
Node,
TypedVariable
}
import com.redhat.ceylon.compiler.typechecker.tree {
JNode=Node,
Tree {
JIsCondition=IsCondition,
JStaticType=StaticType
}
}
"Converts a RedHat AST [[IsCondition|JIsCondition]] to a `ceylon.ast` [[IsCondition]]."
shared IsCondition isConditionToCeylon(JIsCondition isCondition, Anything(JNode,Node) update = noop) {
assert (is JStaticType jType = isCondition.type);
value jVariable = isCondition.variable;
value jSpecifierExpression = jVariable.specifierExpression;
value result = IsCondition {
value variable {
value result = TypedVariable {
name = lIdentifierToCeylon(jVariable.identifier, update);
type = typeToCeylon(jType, update);
specifier = jSpecifierExpression.mainToken exists then specifierToCeylon(jSpecifierExpression, update);
};
update(jVariable, result);
return result;
}
negated = isCondition.not;
};
update(isCondition, result);
return result;
}
"Compiles the given [[code]] for an Is Condition
into an [[IsCondition]] using the Ceylon compiler
(more specifically, the rule for an `isCondition`)."
shared IsCondition? compileIsCondition(String code, Anything(JNode,Node) update = noop) {
if (exists jIsCondition = createParser(code + ",").isCondition()) {
// the parser needs that comma for conditions without a specifier
return isConditionToCeylon(jIsCondition, update);
} else {
return null;
}
}