Represents constraints in AST pattern matching.
| Modifiers | Name | Description | 
|---|---|---|
| static ConstraintPredicate<Token> | ANY_TOKEN | 
| Type | Name and description | 
|---|---|
| ConstraintPredicate<TreeContext> | eventually | 
| Set<String> | placeholders | 
| ConstraintPredicate<Token> | tokenPredicate |