+++ /dev/null
-/* func.c
- *
- * (C) Copyright Nov 23 1996, Edmond J. Breen.
- * ALL RIGHTS RESERVED.
- * This code may be copied for personal, non-profit use only.
- *
- *
- * This file contains the methods for dealing with EiC function
- * house keeping.
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-
-#include "global.h"
-#include "typemod.h"
-#include "func.h"
-#include "xalloc.h"
-#include "error.h"
-#include "symbol.h"
-#include "cdecl.h"
-
-int EiC_gotMissingNames(func_t *f)
-{
- /* check to see that all parameters have a name */
- int i;
-
- if(!EiC_hasPrototype(f) || EiC_gettype(getFPty(f, 0)) == t_void)
- return 0;
-
- for (i = 0; i < getFNp(f); ++i)
- if(!getFPname(f,i))
- if(EiC_gettype(getFPty(f, i)) != t_var)
- return i+1;
- return 0;
-}
-
-int EiC_IsVariadic(func_t *f)
-{
- return f ? getFNp(f) > 1 && EiC_gettype(getFPty(f,getFNp(f)-1)) ==
- t_var : 0;
-}
-
-int EiC_hasPrototype(func_t *f)
-{
-
- return f ? EiC_gettype(getFPty(f, 0)) != t_var: 0;
-}
-
-void EiC_swapFPLists(func_t *f1, func_t *f2)
-{
- /* swap parameter lists */
- parm_t *t = getFPtyList(f1);
- setFPtyList(f1,getFPtyList(f2));
- setFPtyList(f2,t);
-}
-
-
-int EiC_HasHiddenParm(type_expr *ty)
-{
- int t = EiC_gettype(nextType(ty));
- if(t == t_struct || t == t_union)
- return 1;
- return 0;
-}
-
-int EiC_sameFuncs(type_expr * t1, type_expr * t2)
-{
- /* check for compatible function types */
-
- func_t * f1, *f2;
- int i;
-
- f1 = EiC_getInf(t1);
- f2 = EiC_getInf(t2);
- if(!f1 || !f2) /* watch for builtin types before prototype */
- return 0;
- if(EiC_hasPrototype(f1) && EiC_hasPrototype(f2)) {
- if (getFNp(f1) != getFNp(f2))
- return 0;
- for (i = 0; i < getFNp(f1); ++i)
- if(!EiC_sametypes(getFPty(f1,i),getFPty(f2,i)))
- return 0;
- } else if(EiC_IsVariadic(f1) || EiC_IsVariadic(f2))
- return 0;
- else { /* now check parameters are not convertable */
- if(EiC_hasPrototype(f2))
- f1 = f2;
- for (i = 0; i < getFNp(f1); ++i)
- switch(EiC_gettype(getFPty(f1,i))) {
- case t_char: case t_uchar:
- case t_short: case t_ushort:
- case t_float:
- return 0;
- }
- }
- /* check function return types */
- return EiC_sametypes(t1->nxt, t2->nxt);
-}
-
-
-void EiC_make_func(token_t * e1)
-{
- /* if (EiC_gettype(e1->type) == t_array ||
- EiC_gettype(e1->type) == t_funcdec) {
- EiC_error("Illegal type construction");
- }
- */
- e1->Type = EiC_addtype(t_funcdec, e1->Type);
- setInf(e1->Type,xcalloc(1, sizeof(func_t)));
-}
-
-void EiC_adjustParam(type_expr **type)
-{
- int t = EiC_gettype(*type);
- if(t == t_funcdec)
- *type = EiC_addtype(t_pointer, *type);
- else if(t == t_array)
- EiC_exchtype(t_pointer,*type);
-}
-
-
-static void newParam(func_t *f,char *name, type_expr *type)
-{
-
- setFPtyList(f,xrealloc(getFPtyList(f),
- sizeof(parm_t) * (getFNp(f) +1)));
-
-
- if(name)
- setFPname(f,getFNp(f), EiC_strsave(name));
- else
- setFPname(f,getFNp(f), NULL);
-
- setFPcomm(f,getFNp(f),NULL);
- setFPval(f,getFNp(f),NULL);
-
- setFPty(f,getFNp(f),EiC_copytype(type));
-}
-
-
-void EiC_add_func_parm(func_t * f, type_expr ** type, char * name)
-{
- int t;
- type_expr *t1, *t2;
- /* must handle storage class, as yet not done. */
- if ((t = EiC_gettype(*type)) != t_funcdec && t != t_array)
- t = 0;
-
- newParam(f,name,*type);
-
- /*
- * Because, parameters will be removed
- * from the lookup table the function types stored
- * need to be as complete as possible.
- */
- t1 = getFPty(f,getFNp(f));
- t2 = *type;
- while (t2) {
- if (!t2->alias) {
- t2->alias = 1;
- t1->alias = 0;
- }
- t2 = nextType(t2);
- t1 = nextType(t1);
- }
-
- EiC_adjustParam(&getFPty(f,getFNp(f)));
- setFNp(f,getFNp(f)+1);
-}
-
-void EiC_add_func_str(func_t * f, char *s)
-{
- if (!f->sn)
- f->strs = (char **) xcalloc(1, sizeof(char *));
- else
- f->strs = (char **) xrealloc(f->strs,
- sizeof(char *) * (f->sn + 1));
- f->strs[f->sn] = s;
- f->sn++;
-}
-
-
-void EiC_add_func_static(func_t * f, int n)
-{
- if (!f->stn)
- f->st = (int *) xcalloc(1, sizeof(int));
- else
- f->st = (int *) xrealloc(f->st,
- sizeof(int) * (f->stn + 1));
- f->st[f->stn] = n;
- f->stn++;
-}
-
-void EiC_add_func_initialiser(func_t * f, void *s)
-{
- if (!f->ni)
- f->inzs = (void **) xcalloc(1, sizeof(void *));
- else
- f->inzs = (void **) xrealloc(f->inzs,
- sizeof(void *) * (f->ni + 1));
- f->inzs[f->ni] = s;
- f->ni++;
-}
-
-void add_param_initialiser(func_t *f)
-{
- if (f->ni)
- setFPval(f,f->ni-1,f->inzs[f->ni-1]);
- else
- EiC_error("Error in with parameter initialisation");
-}
-
-
-
-void EiC_freeFuncComments(func_t *f)
-{
-
- if(getFComm(f)) {
- xfree(getFComm(f));
- setFComm(f,NULL);
- }
-}
-
-static void freeCallBack(func_t *f)
-{
- if(f->callBack) {
- void EiC_freecode(code_t * code);
- EiC_freecode(getFcallBack(f));
- xfree(getFcallBack(f));
- setFcallBack(f,NULL);
- }
-}
-
-void EiC_free_func_inf(func_t * f)
-{
- int i;
- if (!f)
- return;
- if (getFNp(f)) {
- for (i = 0; i < getFNp(f); i++) {
- EiC_freetype(getFPty(f,i));
- if(getFPname(f,i))
- xfree(getFPname(f,i));
- }
-
- xfree(getFPtyList(f));
- }
- if (f->sn) {
- for (i = 0; i < f->sn; ++i)
- xfree(f->strs[i]);
- xfree(f->strs);
- f->sn = 0;
- }
- if (f->ni) {
- for (i = 0; i < f->ni; ++i)
- xfree(f->inzs[i]);
- xfree(f->inzs);
- f->ni= 0;
- }
- if (f->stn) {
- for (i = 0; i < f->stn; ++i)
- xfree(EiC_ENV->AR[f->st[i]].v.p.p);
- xfree(f->st);
- f->stn = 0;
- }
-
- freeCallBack(f);
-
- EiC_freeFuncComments(f);
- xfree(f);
-}
-
-void EiC_markFunc(type_expr * type, int mark)
-{
- func_t * f = EiC_getInf(type);
- int i;
-
- xmark(f,mark);
- /* mark paramaters */
- if(getFNp(f)) {
- xmark(getFPtyList(f),mark);
- for(i=0;i<getFNp(f);i++) {
- EiC_marktype(getFPty(f,i),mark);
- if(getFPname(f,i))
- xmark(getFPname(f,i),mark);
- if(getFPcomm(f,i))
- xmark(getFPcomm(f,i),mark);
- }
- }
- /* mark strings */
- if(f->sn) {
- xmark(f->strs,mark);
- for(i=0;i<f->sn;i++)
- xmark(f->strs[i],mark);
-
- }
- /* mark initializers */
- if(f->ni) {
- xmark(f->inzs,mark);
- for(i=0;i<f->ni;i++)
- xmark(f->inzs[i],mark);
- }
- /* mark static arrays */
- if(f->stn) {
- xmark(f->st,mark);
- for(i=0;i<f->stn;i++)
- xmark(EiC_ENV->AR[f->st[i]].v.p.p,mark);
- }
- if(getFcallBack(f)) {
- code_t *code = getFcallBack(f);
- xmark(code,mark);
- xmark(code->inst,mark);
- }
-
- if(getFComm(f))
- xmark(getFComm(f),mark);
-
-}
-
-void add_func_comment(char *s)
-{
- extern token_t *EiC_RETURNEXPR;
- func_t * f = EiC_getInf(EiC_RETURNEXPR->Type);
- setFComm(f,s);
-}
-
-void (*EiC_saveComment(void)) (char * s)
-{
- if(EiC_INFUNC) {
- extern token_t *EiC_RETURNEXPR;
- func_t * f = EiC_getInf(EiC_RETURNEXPR->Type);
- if(f && !getFComm(f))
- return add_func_comment;
- }
- return NULL;
-}
-
-
-#if 0
-
-void savecode(char * filename,
- func_t *func)
-{
-
- int i;
- FILE *fp = fopen(filename,"wb");
- for(i=0;i<CODE->nextinst;++i)
- fwrite(&CODE->inst[i],sizeof(InsT_t),1,fp);
-
-#endif
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projects / opencv / blobdiff