1*13785Sthien struct tnode 2*13785Sthien { 3*13785Sthien int tag; 4*13785Sthien union 5*13785Sthien { 6*13785Sthien struct FOR_NODE 7*13785Sthien { 8*13785Sthien int line_no; /* line number of for */ 9*13785Sthien struct tnode *init_asg; /* initialization */ 10*13785Sthien struct tnode *term_expr; /* termination expresssion */ 11*13785Sthien struct tnode *for_stmnt; /* for statement */ 12*13785Sthien } for_node; 13*13785Sthien struct ASG_NODE 14*13785Sthien { 15*13785Sthien int line_no; /* line number of := */ 16*13785Sthien struct tnode *lhs_var; 17*13785Sthien struct tnode *rhs_expr; 18*13785Sthien } asg_node; 19*13785Sthien struct VAR_NODE 20*13785Sthien { 21*13785Sthien int line_no; 22*13785Sthien char *cptr; 23*13785Sthien struct tnode *qual; 24*13785Sthien struct tnode *fields; 25*13785Sthien } var_node; 26*13785Sthien struct EXPR_NODE 27*13785Sthien { 28*13785Sthien int const_tag; 29*13785Sthien struct tnode *lhs; 30*13785Sthien struct tnode *rhs; 31*13785Sthien } expr_node; 32*13785Sthien } tree_ele; 33*13785Sthien }; 34