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Commitb2bddc2

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author
Michael Meskes
committed
Applied Zoltan's patch to make ecpg spit out warnings if a local variable hides a global one with the same name.
1 parent0189c42 commitb2bddc2

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4 files changed

+51
-12
lines changed

4 files changed

+51
-12
lines changed

‎src/interfaces/ecpg/preproc/descriptor.c

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -1,7 +1,7 @@
11
/*
22
* functions needed for descriptor handling
33
*
4-
* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/descriptor.c,v 1.32 2010/03/09 11:09:45 meskes Exp $
4+
* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/descriptor.c,v 1.33 2010/04/01 08:41:01 meskes Exp $
55
*
66
* since descriptor might be either a string constant or a string var
77
* we need to check for a constant if we expect a constant
@@ -188,7 +188,7 @@ output_get_descr(char *desc_name, char *index)
188188
break;
189189
}
190190
fprintf(yyout,"%s,",get_dtype(results->value));
191-
ECPGdump_a_type(yyout,v->name,v->type,NULL,NULL,NULL,NULL,make_str("0"),NULL,NULL);
191+
ECPGdump_a_type(yyout,v->name,v->type,NULL,NULL,NULL,NULL,make_str("0"),NULL,NULL,v->brace_level,-1);
192192
}
193193
drop_assignments();
194194
fputs("ECPGd_EODT);\n",yyout);
@@ -293,7 +293,7 @@ output_set_descr(char *desc_name, char *index)
293293
caseECPGd_length:
294294
caseECPGd_type:
295295
fprintf(yyout,"%s,",get_dtype(results->value));
296-
ECPGdump_a_type(yyout,v->name,v->type,NULL,NULL,NULL,NULL,make_str("0"),NULL,NULL);
296+
ECPGdump_a_type(yyout,v->name,v->type,NULL,NULL,NULL,NULL,make_str("0"),NULL,NULL,v->brace_level,-1);
297297
break;
298298

299299
default:

‎src/interfaces/ecpg/preproc/type.c

Lines changed: 41 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,4 @@
1-
/* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/type.c,v 1.88 2010/03/09 11:09:45 meskes Exp $ */
1+
/* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/type.c,v 1.89 2010/04/01 08:41:01 meskes Exp $ */
22

33
#include"postgres_fe.h"
44

@@ -54,7 +54,7 @@ ECPGstruct_member_dup(struct ECPGstruct_member * rm)
5454
* if this array does contain a struct again, we have to
5555
* create the struct too
5656
*/
57-
if (rm->type->u.element->type==ECPGt_struct)
57+
if (rm->type->u.element->type==ECPGt_struct||rm->type->u.element->type==ECPGt_union)
5858
type=ECPGmake_struct_type(rm->type->u.element->u.members,rm->type->u.element->type,rm->type->u.element->type_name,rm->type->u.element->struct_sizeof);
5959
else
6060
type=ECPGmake_array_type(ECPGmake_simple_type(rm->type->u.element->type,rm->type->u.element->size,rm->type->u.element->counter),rm->type->size);
@@ -240,8 +240,44 @@ ECPGdump_a_type(FILE *o, const char *name, struct ECPGtype * type,
240240
constchar*ind_name,structECPGtype*ind_type,
241241
constchar*prefix,constchar*ind_prefix,
242242
char*arr_str_siz,constchar*struct_sizeof,
243-
constchar*ind_struct_sizeof)
243+
constchar*ind_struct_sizeof,
244+
constintbrace_level,constintind_brace_level)
244245
{
246+
structvariable*var;
247+
248+
if (type->type!=ECPGt_descriptor&&type->type!=ECPGt_sqlda&&
249+
type->type!=ECPGt_char_variable&&
250+
brace_level >=0)
251+
{
252+
char*str;
253+
254+
str=strdup(name);
255+
var=find_variable(str);
256+
free(str);
257+
258+
if ((var->type->type!=type->type)||
259+
(var->type->type_name&& !type->type_name)||
260+
(!var->type->type_name&&type->type_name)||
261+
(var->type->type_name&&type->type_name&&strcmp(var->type->type_name,type->type_name)))
262+
mmerror(PARSE_ERROR,ET_WARNING,"variable (%s) is hidden by a local variable of a different type",name);
263+
elseif (var->brace_level!=brace_level)
264+
mmerror(PARSE_ERROR,ET_WARNING,"variable (%s) is hidden by a local variable",name);
265+
266+
if (ind_name&&ind_type&&ind_type->type!=ECPGt_NO_INDICATOR&&ind_brace_level >=0)
267+
{
268+
str=strdup(ind_name);
269+
var=find_variable(str);
270+
free(str);
271+
if ((var->type->type!=ind_type->type)||
272+
(var->type->type_name&& !ind_type->type_name)||
273+
(!var->type->type_name&&ind_type->type_name)||
274+
(var->type->type_name&&ind_type->type_name&&strcmp(var->type->type_name,ind_type->type_name)))
275+
mmerror(PARSE_ERROR,ET_WARNING,"indicator variable (%s) is hidden by a local variable of a different type",ind_name);
276+
elseif (var->brace_level!=ind_brace_level)
277+
mmerror(PARSE_ERROR,ET_WARNING,"indicator variable (%s) is hidden by a local variable",ind_name);
278+
}
279+
}
280+
245281
switch (type->type)
246282
{
247283
caseECPGt_array:
@@ -503,7 +539,8 @@ ECPGdump_a_struct(FILE *o, const char *name, const char *ind_name, char *arrsiz,
503539
(ind_p!=NULL) ?ind_p->name :NULL,
504540
(ind_p!=NULL) ?ind_p->type :NULL,
505541
prefix,ind_prefix,arrsiz,type->struct_sizeof,
506-
(ind_p!=NULL) ?ind_type->struct_sizeof :NULL);
542+
(ind_p!=NULL) ?ind_type->struct_sizeof :NULL,
543+
-1,-1);
507544
if (ind_p!=NULL&&ind_p!=&struct_no_indicator)
508545
ind_p=ind_p->next;
509546
}

‎src/interfaces/ecpg/preproc/type.h

Lines changed: 3 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
11
/*
2-
* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/type.h,v 1.54 2010/03/09 11:09:45 meskes Exp $
2+
* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/type.h,v 1.55 2010/04/01 08:41:01 meskes Exp $
33
*/
44
#ifndef_ECPG_PREPROC_TYPE_H
55
#define_ECPG_PREPROC_TYPE_H
@@ -57,7 +57,8 @@ voidECPGfree_type(struct ECPGtype *);
5757
*/
5858
voidECPGdump_a_type(FILE*,constchar*,structECPGtype*,
5959
constchar*,structECPGtype*,constchar*,
60-
constchar*,char*,constchar*,constchar*);
60+
constchar*,char*,constchar*,constchar*,
61+
constint,constint);
6162

6263
/* A simple struct to keep a variable and its type. */
6364
structECPGtemp_type

‎src/interfaces/ecpg/preproc/variable.c

Lines changed: 4 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,4 @@
1-
/* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/variable.c,v 1.54 2010/03/09 11:09:45 meskes Exp $ */
1+
/* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/variable.c,v 1.55 2010/04/01 08:41:01 meskes Exp $ */
22

33
#include"postgres_fe.h"
44

@@ -22,7 +22,7 @@ new_variable(const char *name, struct ECPGtype * type, int brace_level)
2222
}
2323

2424
staticstructvariable*
25-
find_struct_member(char*name,char*str,structECPGstruct_member*members,intbrace_level)
25+
find_struct_member(constchar*name,char*str,structECPGstruct_member*members,intbrace_level)
2626
{
2727
char*next=strpbrk(++str,".-["),
2828
*end,
@@ -446,7 +446,8 @@ dump_variables(struct arguments * list, int mode)
446446
/* Then the current element and its indicator */
447447
ECPGdump_a_type(yyout,list->variable->name,list->variable->type,
448448
list->indicator->name,list->indicator->type,
449-
NULL,NULL,make_str("0"),NULL,NULL);
449+
NULL,NULL,make_str("0"),NULL,NULL,
450+
list->variable->brace_level,list->indicator->brace_level);
450451

451452
/* Then release the list element. */
452453
if (mode!=0)

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