TC-E Code to WriteΒΆ

See The src/ast Directory, and The src/escapes Directory.

Implement --escapes-display support in the PrettyPrinter. Follow strictly the output format, since we parse your output to check it. Display the /* escaping */ flag where needed, and only where needed: each definition of an escaping variable/formal is preceded by the comment /* escaping */. Do not display meaningless flags due to implementation details. How this pretty-printing is implemented is left to you, but factor common code.
Write the class escapes::EscapesVisitor in src/escapes/escapes-visitor.hh and src/escapes/
Introduce ast::Escapable
Ensure ast::VarDec inherits from ast::Escapable. See Escapable.