/*
** tests/extends_fixtures/ansi_sql.lime -- v0.4.1 base grammar for
** the %extends inheritance test fixture.  Models a tiny ANSI SQL
** SELECT/WHERE skeleton.  Two derivatives (oracle.lime,
** mysql.lime) extend it and override different rules; unified.lime
** then extends both to exercise the diamond-resolution path.
*/

%name AnsiSql
%token_type {int}
%type stmt {int}
%type result {int}
%extra_argument {int *out}

%include {
#include <stdio.h>
#include <stdlib.h>
}

%token IDENT NUMBER STAR.
%token SELECT FROM WHERE EQUALS.

%type select_clause {int}
%type where_clause  {int}

stmt(S) ::= result(R).                            { S = R; *out = R; }

result(R) ::= select_clause(S) where_clause(W).   { R = S + W; }

select_clause(R) ::= SELECT STAR FROM IDENT.      { R = 1;  /* ANSI */ }
where_clause(R)  ::= WHERE IDENT EQUALS NUMBER.   { R = 10; /* ANSI */ }
where_clause(R)  ::= .                            { R = 0;  /* empty */ }