public bool Resolve(IVariableStore variables, VariableValueSource source, out VariableValue result)
{
if (source.Type == VariableSourceType.Reference)
{
return(Resolve(variables, source.Reference, out result));
}
result = source.Value;
return(true);
}
private VariableRefEvaluator GetVariableRefEvaluator(InputValueDef inputDef, TypeRef resultTypeRef, VariableValueSource varRef)
{
var varDecl = _currentOp.Variables.FirstOrDefault(vd => vd.Name == varRef.VariableName);
if (varDecl == null)
{
throw new InvalidInputException($"Variable ${varRef.VariableName} not defined.", varRef);
}
// check type compatibility
if (!resultTypeRef.IsConvertibleFrom(varDecl.InputDef.TypeRef))
{
throw new InvalidInputException(
$"Incompatible types: variable ${varRef.VariableName} cannot be converted to type '{resultTypeRef.Name}'", varRef);
}
return(new VariableRefEvaluator(inputDef, varDecl));
}
