/*
** tests/test_dialect_grammar.lime -- v0.4.0 fixture for the
** %dialect NAME { ... } directive.
**
** The grammar declares one always-active rule plus two dialect-
** scoped rule sets.  Build configurations under test:
**
**   no -D                       -> only the always-active rule survives.
**   -Ddialect=oracle            -> oracle tokens + rule activate.
**   -Ddialect=mysql             -> mysql tokens + rule activate.
**   -Ddialect=oracle -Ddialect=mysql
**                               -> both activate, sharing token namespace.
**
** Test fingerprints checked by tests/test_dialect.c key off the
** presence/absence of ROWNUM, CONNECT_BY, and BACKTICK_IDENT in
** the generated header.  The driver also runs a parse against
** the oracle build to confirm dialect-conditional rules execute.
*/

%name DialectTest
%token_type {int}
%type result {int}
%extra_argument {int *out}

%token NUMBER PLUS.

%dialect oracle {
    %token ROWNUM CONNECT_BY.

    /* ROWNUM is a pseudo-column in Oracle; the rule writes -1 so
    ** the runtime test can distinguish it from arithmetic results. */
    result(R) ::= ROWNUM.            { R = -1; *out = R; }
    result(R) ::= CONNECT_BY NUMBER(N).  { R = -10 - N; *out = R; }
}

%dialect mysql {
    %token BACKTICK_IDENT.

    /* BACKTICK_IDENT models a MySQL `name` quoted identifier. */
    result(R) ::= BACKTICK_IDENT.    { R = -2; *out = R; }
}

/* Always-active rule -- present in every dialect build. */
result(R) ::= NUMBER(N) PLUS NUMBER(M).  { R = N + M; *out = R; }

/* String/char literal containing `}` -- the desugaring brace scan
** must NOT treat these as the closing brace of the dialect block. */
%dialect oracle {
    %token QUOTED_BRACE.

    result(R) ::= QUOTED_BRACE.      {
        const char *s = "}";          /* `}` inside a string */
        const char  c = '}';          /* `}` inside a char literal */
        (void)s; (void)c;
        R = -3; *out = R;
    }
}

/* Empty body -- legal, must produce no rules. */
%dialect never_defined {
}