Module macro_railroad::lowering

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Expand description

Intermediate representation of a MacroRules and it’s transformations.

The representation in this module is more coarse than what the parser provides, yet has still more information than a diagram-node.

Structs

  • InternalMacroRemover
    Replaces macro-variants which start with certain literals with a macro-internal-comment.
  • MacroRules
    A more coarse representation of parser::MacroRules.
  • NonTerminalCollector
    Walks a Matcher-tree and collects all NonTerminals as their Name/Fragment-combinations
  • Normalizer
    Simplifies a Matcher-tree
  • SearchVisitor
    Tests if any Matcher matches a given predicate.
  • Ungrouper
    Unpacks all Groups in a Matcher

Enums

  • Matcher
    A more coarse superset of parser::Matcher.

Traits