fn check_ops_is_prefix(
    sess: &ParseSess,
    node_id: NodeId,
    macros: &Stack<'_, MacroState<'_>>,
    binders: &FxHashMap<MacroRulesNormalizedIdent, BinderInfo>,
    ops: &Stack<'_, KleeneToken>,
    span: Span,
    name: MacroRulesNormalizedIdent
Expand description

Checks that a meta-variable occurrence is valid.


  • sess is used to emit diagnostics and lints
  • node_id is used to emit lints
  • macros is the stack of possible outer macros
  • binders contains the binders of the associated LHS
  • ops is the stack of Kleene operators from the RHS
  • span is the span of the meta-variable to check
  • name is the name of the meta-variable to check