...
| No Format |
|---|
parser grammar Java;
import JavaDecl;
prog : decl ;
type : 'int' | 'float' ;
|
ANTLR will aggressively optimize out the rules are not needed. It must still include rules whose lookahead DFA change as a result of an overridden rule. In this case, the change in rule type alters the lookahead prediction for rule decl. Consequently, decl must be included in the generated code for grammar Java. Here is the output ANTLR would generate for Java:
...