titus.pfaast.Subs¶

class titus.pfaast.Subs(name, lineno=None)[source]¶

Bases: titus.pfaast.Ast

Represents an unresolved substitution in the abstract syntax tree.

PrettyPFA can make substitutions with <<French quotes>>.

A PFA document is not valid if it contains any unresolved substitutions.

__init__(name, lineno=None)¶

Parameters:	name (string) – key for substitution lineno (integer or None) – line number

asExpr(state)¶

Mini-AST method for representing as an expression.

asType(state)¶

Mini-AST method for representing as a type.

jsonNode(lineNumbers, memo)¶

Inserts self into the Pythonized JSON, which would make it unserializable.

toJson(lineNumbers=True)¶

Raises a syntax exception because unresolved substitutions are not allowed in valid PFA.

walk(task, version)¶

Raises a syntax exception because unresolved substitutions are not allowed in valid PFA.