@attributes { struct symbol *s; int gparamges; } Statseq Exprs
@attributes { struct symbol *s; int gparamges; struct treenode *node; short imm; } Expr Minusterm Multerm Orterm Feld Term
@attributes { struct symbol *s; int gparamges; struct treenode *node; } Lexpr
-@attributes { struct symbol *sin; int gparamges; struct symbol *sout; struct treenode *node; } Statement
+@attributes { struct symbol *sin; int gparamges; struct symbol *sout; struct
+treenode *node; int vars; } Statement
@traversal @postorder c
@traversal @preorder reg
@{
@i @Statement.sin@ = @Statseq.0.s@;
@i @Statseq.1.s@ = @Statement.sout@;
- @gen write_tree(@Statement.node@, 0); burm_label(@Statement.node@); burm_reduce(@Statement.node@, 1);
+ @i @Statseq.1.gparamges@ = @Statseq.0.gparamges@ + @Statement.vars@;
@}
|
xxputsin(@Lexpr.s@,)
xxputsin(@Expr.s@,)
@i @Statement.node@ = TREENULL;
+ @i @Statement.vars@ = 0;
@}
| VAR IDENT ASSIGN Expr
@{
/* tab_clone ist hier noetig, vgl. folgendes statement
* > var x := x - 1; */
- @i @Statement.sout@ = tab_add_symbol(tab_clone(@Statement.sin@), @IDENT.name@, S_VAR, 1, -1, -1);
+ @i @Statement.sout@ = tab_add_symbol(tab_clone(@Statement.sin@), @IDENT.name@, S_VAR, 1, @Statement.gparamges@, -1);
xxputsin(@Expr.s@,)
- @i @Statement.node@ = TREENULL;
+ @i @Statement.vars@ = 1;
+
+ @i @Statement.node@ = new_node(O_ASSIGN, new_param(O_ID, @IDENT.name@, TREENULL, TREENULL, @Statement.gparamges@), @Expr.node@);
+ @reg @Statement.node@->reg = @Expr.node@->reg = next_reg((char *)NULL, @Expr.gparamges@);
+
+ @gen write_tree(@Statement.node@, 0); burm_label(@Statement.node@); burm_reduce(@Statement.node@, 1);
@}
| Expr
statinout()
xxputsin(@Expr.s@,)
@i @Statement.node@ = TREENULL;
+ @i @Statement.vars@ = 0;
@}
| IF Expr THEN Statseq END
xxputsin(@Expr.s@,)
xxputsin(@Statseq.s@,)
@i @Statement.node@ = TREENULL;
+ @i @Statement.vars@ = 0;
@}
| IF Expr THEN Statseq ELSE Statseq END
xxputsin(@Statseq.0.s@,)
xxputsin(@Statseq.1.s@,)
@i @Statement.node@ = TREENULL;
+ @i @Statement.vars@ = 0;
@}
| WHILE Expr DO Statseq END
xxputsin(@Expr.s@,)
xxputsin(@Statseq.s@,)
@i @Statement.node@ = TREENULL;
+ @i @Statement.vars@ = 0;
@}
| RETURN Expr
@{
statinout()
xxputsin(@Expr.s@,)
+ @i @Statement.vars@ = 0;
@i @Statement.node@ = new_node(O_RET, @Expr.node@, TREENULL);
@reg @Statement.node@->reg = @Expr.node@->reg = next_reg((char *)NULL, @Expr.gparamges@);
+
+ @gen write_tree(@Statement.node@, 0); burm_label(@Statement.node@); burm_reduce(@Statement.node@, 1);
@}
;
/* es handelt sich um ein feldzugriff auf this */
@Term.node@ = new_field(@IDENT.name@, new_param(O_ID, strdup("this"), TREENULL, TREENULL, 0), TREENULL, tab_lookup(@Term.s@, @IDENT.name@, S_FIELD) == SYMNULL ? -1 : tab_lookup(@Term.s@, @IDENT.name@, S_FIELD)->soffset);
} else { /* param oder var */
- @Term.node@ = new_param(O_ID, @IDENT.name@, TREENULL, TREENULL, tab_lookup(@Term.s@, @IDENT.name@, S_PARM) == SYMNULL ? -1 : tab_lookup(@Term.s@, @IDENT.name@, S_PARM)->param_index);
+ int tmp = tab_lookup(@Term.s@, @IDENT.name@, S_VAR|S_PARM) == SYMNULL ? -1 : tab_lookup(@Term.s@, @IDENT.name@, S_VAR|S_PARM)->param_index;
+ fprintf(stderr, "WTF: %d\n", tmp);
+ @Term.node@ = new_param(O_ID, @IDENT.name@, TREENULL, TREENULL, tmp);
}
}