public override bool CanCastTo(IType other)
{
if (other is ArrayType)
{
return(_baseType.CanCastTo(((ArrayType)other)._baseType));
}
else
{
return(base.CanCastTo(other));
}
}
/// <summary>
/// Verifies whether the return type matches the function return type.
/// </summary>
/// <param name="actualReturnType">The type of the value which is returned.</param>
/// <param name="definedReturnType">The type of the function specified in the function signature.</param>
/// <param name="positionInSourceCode">The current position of the token in the source code. Used for throwing exceptions.</param>
protected void VerifyReturnType(IType actualReturnType, IType definedReturnType, long positionInSourceCode)
{
if (object.ReferenceEquals(null, actualReturnType))
{
if (!object.ReferenceEquals(null, definedReturnType))
{
throw new CompileException(positionInSourceCode, "Function does not return a value");
}
}
else if (object.ReferenceEquals(null, definedReturnType))
{
throw new CompileException(positionInSourceCode, "Function must not return a value");
}
else if (!actualReturnType.CanCastTo(definedReturnType))
{
throw new CompileException(positionInSourceCode, "Function return value does not match definition");
}
}
