usr/src/usr.bin/pascal/src/tree_ty.h

/*-
 * Copyright (c) 1980 The Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      @(#)tree_ty.h   5.2 (Berkeley) 4/16/91
 */

typedef struct /* T_FORU, T_FORD */
{
    int         line_no;        /* line number of for */
    struct      tnode   *init_asg;      /* initialization */
    struct      tnode   *term_expr;     /* termination expresssion */
    struct      tnode   *for_stmnt;     /* for statement */
} FOR_NODE;
typedef struct  /* T_ASGN */
{
    int         line_no;        /* line number of := */
    struct      tnode   *lhs_var;
    struct      tnode   *rhs_expr;
} ASG_NODE;
#ifndef PTREE
typedef struct                          /* T_VAR */
{
    int                 line_no;
    char                *cptr;
    struct tnode        *qual;          /* list node */
} VAR_NODE;
typedef struct          /* T_FIELD */
{
    char                *id_ptr;
    struct tnode        *other;
} FIELD_NODE;
#else
typedef struct                          /* T_VAR */
{
    int                 line_no;
    char                *cptr;
    struct tnode        *qual;
    struct nl           *nl_entry;
} VAR_NODE;
typedef struct          /* T_FIELD */
{
    char                *id_ptr;
    struct tnode        *other;
    struct nl           *nl_entry;
} FIELD_NODE;
#endif
typedef struct                          /* T_MOD, T_MULT, T_DIVD, T_DIV,
                                           T_AND, T_ADD, T_SUB, T_OR,
                                           T_EQ, T_LT, T_GT, T_NE, T_LE
                                           T_GE, T_IN */
{
    int         const_tag;
    struct      tnode   *lhs;
    struct      tnode   *rhs;
} EXPR_NODE;
typedef struct                  /* T_LISTPP */
{
    struct tnode *list;  /* check the types on these,
                            this is used in pclvalue and lvalue */
    struct tnode *next;
} LIST_NODE;
typedef struct                  /* T_IF, T_IFEL, T_IFX */
{
    int           line_no;
    struct tnode *cond_expr;
    struct tnode *then_stmnt;
    struct tnode *else_stmnt;
} IF_NODE;
typedef struct                  /* T_MINUS, T_PLUS, T_NOT */
{
    int         const_tag;
    struct tnode        *expr;
} UN_EXPR;
typedef struct /* T_PDEC, T_FDEC, T_PROG */
{
    int line_no;
    char        *id_ptr;
    struct tnode        *param_list;
    struct tnode        *type;
} P_DEC;
typedef struct  /* T_PVAL, T_PVAR */
{
    struct tnode        *id_list;
    struct tnode        *type;
} PARAM;
typedef struct          /* T_PFUNC, T_PPROC */
{
    struct tnode        *id_list,
                        *type,
                        *param_list;
    int                 line_no;
} PFUNC_NODE;
typedef struct          /* T_NIL */
{
    int const_tag;
} NIL_NODE;
typedef struct          /* T_STRNG, T_INT, T_FINT, T_BINT */
{
    int         const_tag;
    char        *cptr;
} CONST_NODE;
typedef struct          /* T_CSTRNG, T_ID, T_CFINT, T_CINT, T_CBINT */
{
    char        *cptr;
} CHAR_CONST;
typedef struct          /* T_PLUSC, T_MINUSC */
{
    struct tnode        *number;
} SIGN_CONST;
#ifdef PTREE
typedef struct
{
    int line_no
    struct tnode        *type;
    struct nl           *nl_entry;
} COMP_TY;
#else
typedef struct          /* T_TYPACK, T_TYSCAL, T_TYFILE, T_TYSET, T_TYREC */
{
    int           line_no;
    struct tnode *type;
} COMP_TY;
#endif
typedef struct          /* T_TYPTR */
{
    int                  line_no;
    struct tnode        *id_node;
} PTR_TY;
typedef struct          /* T_TYRANG */
{
    int                  line_no;
    struct tnode        *const1;
    struct tnode        *const2;
} RANG_TY;
typedef struct          /* T_TYCRANG */
{
    int                  line_no;
    struct tnode        *lwb_var;
    struct tnode        *upb_var;
    struct tnode        *type;
} CRANG_TY;
typedef struct          /* T_TYARY, T_TYCARY */
{
    int                  line_no;
    struct tnode        *type_list;
    struct tnode        *type;
} ARY_TY;
typedef struct          /* T_TYVARNT */
{
    int                  line_no;
    struct tnode        *const_list;
    struct tnode        *fld_list;
} TYVARNT;
typedef struct          /* T_TYVARPT */
{
    int                  line_no;
    char                *cptr;
    struct tnode        *type_id;
    struct tnode        *var_list;
} VARPT;
typedef struct          /* T_CSTAT */
{
    int                  line_no;
    struct tnode        *const_list;
    struct tnode        *stmnt;
} C_STMNT;
typedef struct          /* T_BSTL, T_BLOCK */
{
    int                 line_no;
    struct tnode        *stmnt_list;
} STMNT_BLCK;
typedef struct          /* T_FLDLST */
{
    int                 line_no;
    struct tnode        *fix_list;
    struct tnode        *variant;
} FLDLST;
typedef struct          /* T_RFIELD */
{
    int                 line_no;
    struct tnode        *id_list;
    struct tnode        *type;
} RFIELD;
typedef struct          /* T_LABEL */
{
    int                 line_no;
    char                *lbl_ptr;
    struct tnode        *stmnt;
} LABEL_NODE;
typedef struct          /* T_GOTO */
{
    int         line_no;
    char        *lbl_ptr;
} GOTO_NODE;
typedef struct          /* T_PCALL, T_FCALL */
{
    int                 line_no;
    char                *proc_id;
    struct tnode        *arg;
} PCALL_NODE;
typedef struct          /* T_CASE, T_WHILE */
{
    int                 line_no;
    struct tnode        *expr;
    struct tnode        *stmnt_list;
} WHI_CAS;
typedef struct          /* T_WITH */
{
    int                 line_no;
    struct tnode        *var_list;
    struct tnode        *stmnt;
} WITH_NODE;
typedef struct          /* T_REPEAT */
{
    int                 line_no;
    struct tnode        *stmnt_list;
    struct tnode        *term_expr;
} REPEAT;
typedef struct          /* T_RANG */
{
    struct tnode        *expr1;
    struct tnode        *expr2;
} RANG;
typedef struct          /* T_CSET */
{
    int                 const_tag;
    struct tnode        *el_list;
} CSET_NODE;
typedef struct          /* T_ARY */
{
    struct tnode        *expr_list;
} ARY_NODE;
typedef struct          /* T_WEXPR */
{
    struct tnode        *expr1;
    struct tnode        *expr2;
    struct tnode        *expr3;
} WEXPR_NODE;
typedef struct          /* T_TYID */
{
    int                 line_no;
    char                *idptr;
} TYID_NODE;
typedef struct          /* anything with linenumber in first field */
{
    int                 line_no;
} LINED;

struct tnode
{
    int tag;
    union
    {
        FOR_NODE        t_for_node;
        ASG_NODE        t_asg_node;
        VAR_NODE        t_var_node;
        EXPR_NODE       t_expr_node;
        LIST_NODE       t_list_node;
        IF_NODE         t_if_node;
        UN_EXPR         t_un_expr;
        P_DEC           t_p_dec;
        PARAM           t_param;
        PFUNC_NODE      t_pfunc_node;
        NIL_NODE        t_nil_node;
        CONST_NODE      t_const_node;
        CHAR_CONST      t_char_const;
        SIGN_CONST      t_sign_const;
        COMP_TY         t_comp_ty;
        PTR_TY          t_ptr_ty;
        RANG_TY         t_rang_ty;
        CRANG_TY        t_crang_ty;
        ARY_TY          t_ary_ty;
        VARPT           t_varpt;
        TYVARNT         t_tyvarnt;
        C_STMNT         t_c_stmnt;
        STMNT_BLCK      t_stmnt_blck;
        FLDLST          t_fldlst;
        RFIELD          t_rfield;
        LABEL_NODE      t_label_node;
        PCALL_NODE      t_pcall_node;
        WHI_CAS         t_whi_cas;
        WITH_NODE       t_with_node;
        REPEAT          t_repeat;
        RANG            t_rang;
        CSET_NODE       t_cset_node;
        ARY_NODE        t_ary_node;
        WEXPR_NODE      t_wexpr_node;
        FIELD_NODE      t_field_node;
        TYID_NODE       t_tyid_node;
        LINED           t_lined;
        GOTO_NODE       t_goto_node;
    } tree_ele;
};

#define for_node                tree_ele.t_for_node
#define asg_node                tree_ele.t_asg_node
#define var_node                tree_ele.t_var_node
#define expr_node               tree_ele.t_expr_node
#define list_node tree_ele.t_list_node
#define if_node                 tree_ele.t_if_node
#define un_expr                 tree_ele.t_un_expr
#define p_dec                   tree_ele.t_p_dec
#define param                   tree_ele.t_param
#define pfunc_node              tree_ele.t_pfunc_node
#define nil_node                tree_ele.t_nil_node
#define const_node              tree_ele.t_const_node
#define char_const              tree_ele.t_char_const
#define sign_const              tree_ele.t_sign_const
#define comp_ty                 tree_ele.t_comp_ty
#define ptr_ty                  tree_ele.t_ptr_ty
#define rang_ty                 tree_ele.t_rang_ty
#define crang_ty                tree_ele.t_crang_ty
#define ary_ty                  tree_ele.t_ary_ty
#define varpt                   tree_ele.t_varpt
#define tyvarnt                 tree_ele.t_tyvarnt
#define c_stmnt                 tree_ele.t_c_stmnt
#define stmnt_blck              tree_ele.t_stmnt_blck
#define fldlst                  tree_ele.t_fldlst
#define rfield                  tree_ele.t_rfield
#define label_node              tree_ele.t_label_node
#define pcall_node              tree_ele.t_pcall_node
#define whi_cas                 tree_ele.t_whi_cas
#define with_node               tree_ele.t_with_node
#define repeat                  tree_ele.t_repeat
#define rang                    tree_ele.t_rang
#define cset_node               tree_ele.t_cset_node
#define ary_node                tree_ele.t_ary_node
#define wexpr_node              tree_ele.t_wexpr_node
#define field_node              tree_ele.t_field_node
#define tyid_node               tree_ele.t_tyid_node
#define lined                   tree_ele.t_lined
#define goto_node               tree_ele.t_goto_node