Is put into the AST after it failed to parse something. Such an AST is invalid, and an error must have been generated.
It is generated during synchronisation, which occurs on every statement, but you should expect it everywhere when handling the AST.
Is put into the AST after it failed to parse something. Such an AST is invalid, and an error must have been generated. It is generated during synchronisation, which occurs on every statement, but you should expect it everywhere when handling the AST.