type.h

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/*
 * src/interfaces/ecpg/preproc/type.h
 */
#ifndef _ECPG_PREPROC_TYPE_H
#define _ECPG_PREPROC_TYPE_H
 
#include "ecpgtype.h"
 
struct ECPGtype;
struct ECPGstruct_member
{
    char       *name;
    struct ECPGtype *type;
    struct ECPGstruct_member *next;
};
 
struct ECPGtype
{
    enum ECPGttype type;
    char       *type_name;      /* For struct and union types it is the struct
                                 * name */
    char       *size;           /* For array it is the number of elements. For
                                 * varchar it is the maxsize of the area. */
    char       *struct_sizeof;  /* For a struct this is the sizeof() type as
                                 * string */
    union
    {
        struct ECPGtype *element;   /* For an array this is the type of the
                                     * element */
        struct ECPGstruct_member *members;  /* A pointer to a list of members. */
    }           u;
    int         counter;
};
 
/* Everything is malloced. */
void        ECPGmake_struct_member(const char *name, struct ECPGtype *type,
                                   struct ECPGstruct_member **start);
struct ECPGtype *ECPGmake_simple_type(enum ECPGttype type, const char *size, int counter);
struct ECPGtype *ECPGmake_array_type(struct ECPGtype *type, const char *size);
struct ECPGtype *ECPGmake_struct_type(struct ECPGstruct_member *rm,
                                      enum ECPGttype type,
                                      const char *type_name,
                                      const char *struct_sizeof);
struct ECPGstruct_member *ECPGstruct_member_dup(struct ECPGstruct_member *rm);
 
/* Frees a type. */
void        ECPGfree_struct_member(struct ECPGstruct_member *rm);
void        ECPGfree_type(struct ECPGtype *type);
 
/*
 * Dump a type.
 * The type is dumped as:
 * type-tag <comma> reference-to-variable <comma> arrsize <comma> size <comma>
 * Where:
 * type-tag is one of the simple types or varchar.
 * reference-to-variable can be a reference to a struct element.
 * arrsize is the size of the array in case of array fetches. Otherwise 0.
 * size is the maxsize in case it is a varchar. Otherwise it is the size of
 * the variable (required to do array fetches of structs).
 */
void        ECPGdump_a_type(FILE *o, const char *name, struct ECPGtype *type,
                            const int brace_level, const char *ind_name,
                            struct ECPGtype *ind_type, const int ind_brace_level,
                            const char *prefix, const char *ind_prefix,
                            char *arr_str_size, const char *struct_sizeof,
                            const char *ind_struct_sizeof);
 
/* A simple struct to keep a variable and its type. */
struct ECPGtemp_type
{
    struct ECPGtype *type;
    const char *name;
};
 
extern const char *ecpg_type_name(enum ECPGttype type);
 
/* some stuff for whenever statements */
enum WHEN_TYPE
{
    W_NOTHING,
    W_CONTINUE,
    W_BREAK,
    W_SQLPRINT,
    W_GOTO,
    W_DO,
    W_STOP
};
 
struct when
{
    enum WHEN_TYPE code;
    char       *command;
    char       *str;
};
 
struct index
{
    const char *index1;
    const char *index2;
    const char *str;
};
 
struct su_symbol
{
    const char *su;
    const char *symbol;
};
 
struct prep
{
    const char *name;
    const char *stmt;
    const char *type;
};
 
struct exec
{
    const char *name;
    const char *type;
};
 
struct this_type
{
    char       *type_storage;
    enum ECPGttype type_enum;
    char       *type_str;
    char       *type_dimension;
    char       *type_index;
    char       *type_sizeof;
};
 
struct _include_path
{
    char       *path;
    struct _include_path *next;
};
 
struct cursor
{
    char       *name;
    char       *function;
    char       *command;
    char       *connection;
    bool        opened;
    struct arguments *argsinsert;
    struct arguments *argsinsert_oos;
    struct arguments *argsresult;
    struct arguments *argsresult_oos;
    struct cursor *next;
};
 
struct declared_list
{
    char       *name;
    char       *connection;
    struct declared_list *next;
};
 
struct typedefs
{
    char       *name;
    struct this_type *type;
    struct ECPGstruct_member *struct_member_list;
    int         brace_level;
    struct typedefs *next;
};
 
/*
 * Info about a defined symbol (macro), coming from a -D command line switch
 * or a define command in the program.  These are stored in a simple list.
 * Because ecpg supports compiling multiple files per run, we have to remember
 * the command-line definitions and be able to revert to those; this motivates
 * storing cmdvalue separately from value.
 * name and value are separately-malloc'd strings; cmdvalue typically isn't.
 * used is NULL unless we are currently expanding the macro, in which case
 * it points to the buffer before the one scanning the macro; we reset it
 * to NULL upon returning to that buffer.  This is used to prevent recursive
 * expansion of the macro.
 */
struct _defines
{
    char       *name;           /* symbol's name */
    char       *value;          /* current value, or NULL if undefined */
    const char *cmdvalue;       /* value set on command line, or NULL */
    void       *used;           /* buffer pointer, or NULL */
    struct _defines *next;      /* list link */
};
 
/* This is a linked list of the variable names and types. */
struct variable
{
    char       *name;
    struct ECPGtype *type;
    int         brace_level;
    struct variable *next;
};
 
struct arguments
{
    struct variable *variable;
    struct variable *indicator;
    struct arguments *next;
};
 
struct descriptor
{
    char       *name;
    char       *connection;
    struct descriptor *next;
};
 
struct assignment
{
    char       *variable;
    enum ECPGdtype value;
    struct assignment *next;
};
 
enum errortype
{
    ET_WARNING, ET_ERROR
};
 
struct fetch_desc
{
    const char *str;
    const char *name;
};
 
struct describe
{
    int         input;
    const char *stmt_name;
};
 
#endif                          /* _ECPG_PREPROC_TYPE_H */