switch_statement:
SWITCH ( expression ) { labeled_statement_list }
labeled_statement_list
: labeled_statement_list labeled_statement
| labeled_statement
;
labeled_statement
: CASE CONSTANT : statement
| DEFAULT : statement
;
expression
: additive_expression
;
additive_expression
: multiplicative_expression
| additive_expression + multiplicative_expression
| additive_expression - multiplicative_expression
multiplicative_expression
: primary_expression
| multiplicative_expression * primary_expression
| multiplicative_expression / primary_expression
;
primary_expression
: IDENTIFIER
| CONSTANT
| ( expression )
;