In this compiler step, basic syntax errors are checked.

It checks that:

*[Fields And Properties], [Fields And Properties], Methods, Functions, Events, Interfaces, Callables, and Classes don't begin with "__", ""get", "set_", "add_", "remove_", or "raise_". These are used internally and using them will throw a ReservedPrefix exception.

*[Fields And Properties], Interfaces, and Callables don't have abstract modifiers.

*[Fields And Properties], Methods, Functions, Interfaces, and Callables don't have transient modifiers.

*Destructors don't have modifiers or parameters.

*Constructors don't have modifiers or return types

*Destructors don't have return types

It also warns you when you attempt to use an assign "=" rather than a comparison "==" in a conditional.