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|
/* description: ClassyLang grammar. Very classy. */
/*
To build parser:
$ ./bin/jison examples/classy.jison examples/classy.jisonlex
*/
/* author: Zach Carter */
%right ASSIGN
%left OR
%nonassoc EQUALITY GREATER
%left PLUS MINUS
%left TIMES
%right NOT
%left DOT
%%
pgm
: cdl MAIN LBRACE vdl el RBRACE ENDOFFILE
;
cdl
: c cdl
|
;
c
: CLASS id EXTENDS id LBRACE vdl mdl RBRACE
;
vdl
: VAR t id SEMICOLON vdl
|
;
mdl
: t id LPAREN t id RPAREN LBRACE vdl el RBRACE mdl
|
;
t
: NATTYPE
| id
;
id
: ID
;
el
: e SEMICOLON el
| e SEMICOLON
;
e
: NATLITERAL
| NUL
| id
| NEW id
| THIS
| IF LPAREN e RPAREN LBRACE el RBRACE ELSE LBRACE el RBRACE
| FOR LPAREN e SEMICOLON e SEMICOLON e RPAREN LBRACE el RBRACE
| READNAT LPAREN RPAREN
| PRINTNAT LPAREN e RPAREN
| e PLUS e
| e MINUS e
| e TIMES e
| e EQUALITY e
| e GREATER e
| NOT e
| e OR e
| e DOT id
| id ASSIGN e
| e DOT id ASSIGN e
| id LPAREN e RPAREN
| e DOT id LPAREN e RPAREN
| LPAREN e RPAREN
;
|
