- Issue a warning if a cursor is declared but not opened.

- Fixed prototype for ECPGprepared_statement to not moan about "const char"
- Fixed parsing of nested structures.
- Added option to parse header files.

Author: Michael Meskes

src/interfaces/ecpg/ChangeLog

@@ -1728,3 +1728,11 @@ Wed Dec 17 16:11:16 CET 2003
 	- Set pgtypes library to 1.1.0
 	- Set compat library to 1.1.0
 
+Mon Jan 26 21:57:14 CET 2004
+
+	- Issue a warning if a cursor is declared but not opened.
+	- Fixed prototype for ECPGprepared_statement to not moan about "const
+	  char"
+	- Fixed parsing of nested structures.
+	- Added option to parse header files.
+

src/interfaces/ecpg/ecpglib/execute.c

@@ -1,4 +1,4 @@
-/* $PostgreSQL: pgsql/src/interfaces/ecpg/ecpglib/execute.c,v 1.31 2004/01/07 18:56:29 neilc Exp $ */
+/* $PostgreSQL: pgsql/src/interfaces/ecpg/ecpglib/execute.c,v 1.32 2004/01/28 09:52:14 meskes Exp $ */
 
 /*
  * The aim is to get a simpler inteface to the database routines.
@@ -333,7 +333,7 @@ ECPGis_type_an_array(int type, const struct statement * stmt, const struct varia
 	}
 	PQclear(query);
 	ECPGtypeinfocache_push(&(stmt->connection->cache_head), type, isarray, stmt->lineno);
-	ECPGlog("ECPGexecute line %d: TYPE database: %d C: %d array: %d\n", stmt->lineno, type, var->type, isarray);
+	ECPGlog("ECPGis_type_an_array line %d: TYPE database: %d C: %d array: %d\n", stmt->lineno, type, var->type, isarray);
 	return isarray;
 }
 
@@ -356,7 +356,7 @@ ECPGstore_result(const PGresult *results, int act_field,
 		 */
 		if ((var->arrsize > 0 && ntuples > var->arrsize) || (var->ind_arrsize > 0 && ntuples > var->ind_arrsize))
 		{
-			ECPGlog("ECPGexecute line %d: Incorrect number of matches: %d don't fit into array of %d\n",
+			ECPGlog("ECPGstore_result line %d: Incorrect number of matches: %d don't fit into array of %d\n",
 					stmt->lineno, ntuples, var->arrsize);
 			ECPGraise(stmt->lineno, INFORMIX_MODE(stmt->compat)?ECPG_INFORMIX_SUBSELECT_NOT_ONE:ECPG_TOO_MANY_MATCHES, ECPG_SQLSTATE_CARDINALITY_VIOLATION, NULL);
 			return false;

src/interfaces/ecpg/ecpglib/prepare.c

@@ -1,4 +1,4 @@
-/* $PostgreSQL: pgsql/src/interfaces/ecpg/ecpglib/prepare.c,v 1.10 2003/11/29 19:52:08 pgsql Exp $ */
+/* $PostgreSQL: pgsql/src/interfaces/ecpg/ecpglib/prepare.c,v 1.11 2004/01/28 09:52:14 meskes Exp $ */
 
 #define POSTGRES_ECPG_INTERNAL
 #include "postgres_fe.h"
@@ -169,7 +169,7 @@ ECPGdeallocate_all(int lineno)
 
 /* return the prepared statement */
 char *
-ECPGprepared_statement(char *name)
+ECPGprepared_statement(const char *name)
 {
 	struct prepared_statement *this;
 

src/interfaces/ecpg/include/ecpglib.h

@@ -54,7 +54,7 @@ bool		ECPGprepare(int, char *, char *);
 bool		ECPGdeallocate(int, int, char *);
 bool		ECPGdeallocate_one(int, char *);
 bool		ECPGdeallocate_all(int);
-char	   *ECPGprepared_statement(char *);
+char	   *ECPGprepared_statement(const char *);
 
 void		ECPGlog(const char *format,...);
 char	   *ECPGerrmsg(void);

src/interfaces/ecpg/preproc/ecpg.c

@@ -1,4 +1,4 @@
-/* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/ecpg.c,v 1.83 2003/12/18 18:55:09 petere Exp $ */
+/* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/ecpg.c,v 1.84 2004/01/28 09:52:14 meskes Exp $ */
 
 /* New main for ecpg, the PostgreSQL embedded SQL precompiler. */
 /* (C) Michael Meskes <meskes@postgresql.org> Feb 5th, 1998 */
@@ -22,6 +22,7 @@ int			ret_value = 0,
 			auto_create_c = false,
 			system_includes = false,
 			force_indicator = true;
+			header_mode = false;
 
 enum COMPAT_MODE compat = ECPG_COMPAT_PGSQL;
 
@@ -47,6 +48,7 @@ help(const char *progname)
 	printf("  -d             generate parser debug output\n");
 #endif
 	printf("  -D SYMBOL      define SYMBOL\n");
+	printf("  -h             parse a header file, this option includes option \"-c\"\n");
 	printf("  -i             parse system include files as well\n");
 	printf("  -I DIRECTORY   search DIRECTORY for include files\n");
 	printf("  -o OUTFILE     write result to OUTFILE\n");
@@ -136,7 +138,7 @@ main(int argc, char *const argv[])
 		}
 	}
 
-	while ((c = getopt(argc, argv, "vcio:I:tD:dC:r:")) != -1)
+	while ((c = getopt(argc, argv, "vcio:I:tD:dC:r:h")) != -1)
 	{
 		switch (c)
 		{
@@ -160,6 +162,10 @@ main(int argc, char *const argv[])
 			case 'v':
 				verbose = true;
 				break;
+			case 'h':
+				header_mode = true;
+				/* this must include "-c" to make sense */
+				/* so do not place a break; here */
 			case 'c':
 				auto_create_c = true;
 				break;
@@ -259,11 +265,11 @@ main(int argc, char *const argv[])
 				{
 					ptr2ext = input_filename + strlen(input_filename);
 
-					/* no extension => add .pgc */
+					/* no extension => add .pgc or .pgh */
 					ptr2ext[0] = '.';
 					ptr2ext[1] = 'p';
 					ptr2ext[2] = 'g';
-					ptr2ext[3] = 'c';
+					ptr2ext[3] = (header_mode == true)? 'h' : 'c';
 					ptr2ext[4] = '\0';
 				}
 
@@ -279,8 +285,8 @@ main(int argc, char *const argv[])
 					output_filename = strdup(input_filename);
 
 					ptr2ext = strrchr(output_filename, '.');
-					/* make extension = .c */
-					ptr2ext[1] = 'c';
+					/* make extension = .c resp. .h */
+					ptr2ext[1] = (header_mode == true)? 'h' : 'c';
 					ptr2ext[2] = '\0';
 
 					yyout = fopen(output_filename, PG_BINARY_W);
@@ -383,17 +389,39 @@ main(int argc, char *const argv[])
 				lex_init();
 
 				/* we need several includes */
-				fprintf(yyout, "/* Processed by ecpg (%d.%d.%d) */\n/* These include files are added by the preprocessor */\n#include <ecpgtype.h>\n#include <ecpglib.h>\n#include <ecpgerrno.h>\n#include <sqlca.h>\n#line 1 \"%s\"\n", MAJOR_VERSION, MINOR_VERSION, PATCHLEVEL, input_filename);
+				/* but not if we are in header mode */
+				fprintf(yyout, "/* Processed by ecpg (%d.%d.%d) */\n", MAJOR_VERSION, MINOR_VERSION, PATCHLEVEL);
+				
+				if (header_mode == false)
+				{
+					fprintf(yyout, "/* These include files are added by the preprocessor */\n#include <ecpgtype.h>\n#include <ecpglib.h>\n#include <ecpgerrno.h>\n#include <sqlca.h>\n");
 
-				/* add some compatibility headers */
-				if (INFORMIX_MODE)
-					fprintf(yyout, "/* Needed for informix compatibility */\n#include <ecpg_informix.h>\n");
+					/* add some compatibility headers */
+					if (INFORMIX_MODE)
+						fprintf(yyout, "/* Needed for informix compatibility */\n#include <ecpg_informix.h>\n");
 
-				fprintf(yyout, "/* End of automatic include section */\n");
+					fprintf(yyout, "/* End of automatic include section */\n");
+				}
 
+				fprintf(yyout, "#line 1 \"%s\"\n", input_filename);
+				
 				/* and parse the source */
 				yyparse();
 
+				/* check if all cursors were indeed opened */
+				for (ptr = cur; ptr != NULL;)
+				{
+					char errortext[128];
+					
+					if (!(ptr->opened))
+					{
+						/* Does not really make sense to declare a cursor but not open it */
+						snprintf(errortext, sizeof(errortext), "cursor `%s´ has been declared but ot opened\n", ptr->name);
+						mmerror(PARSE_ERROR, ET_WARNING, errortext);
+					}
+					ptr = ptr->next;
+				}
+				
 				if (yyin != NULL && yyin != stdin)
 					fclose(yyin);
 				if (out_option == 0 && yyout != stdout)

src/interfaces/ecpg/preproc/preproc.y

@@ -1,4 +1,4 @@
-/* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/preproc.y,v 1.270 2004/01/21 14:09:34 meskes Exp $ */
+/* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/preproc.y,v 1.271 2004/01/28 09:52:14 meskes Exp $ */
 
 /* Copyright comment */
 %{
@@ -778,6 +778,7 @@ stmt:  AlterDatabaseSetStmt		{ output_statement($1, 0, connection); }
 
 			if ((ptr = add_additional_variables($1, true)) != NULL)
 				output_statement(mm_strdup(ptr->command), 0, ptr->connection ? mm_strdup(ptr->connection) : NULL);
+			ptr->opened = true;
 		}
 		| ECPGPrepare
 		{
@@ -2780,6 +2781,7 @@ DeclareCursorStmt:  DECLARE name cursor_options CURSOR opt_hold FOR SelectStmt
 			this->next = cur;
 			this->name = $2;
 			this->connection = connection;
+			this->opened = false;
 			this->command =  cat_str(7, make_str("declare"), mm_strdup($2), $3, make_str("cursor"), $5, make_str("for"), $7);
 			this->argsinsert = argsinsert;
 			this->argsresult = argsresult;

src/interfaces/ecpg/preproc/type.c

@@ -47,7 +47,11 @@ ECPGstruct_member_dup(struct ECPGstruct_member * rm)
 				type = ECPGmake_struct_type(rm->type->u.members, rm->type->type, rm->type->struct_sizeof);
 				break;
 			case ECPGt_array:
-				type = ECPGmake_array_type(ECPGmake_simple_type(rm->type->u.element->type, rm->type->u.element->size), rm->type->size);
+				/* if this array does contain a struct again, we have to create the struct too */
+				if (rm->type->u.element->type == ECPGt_struct)
+					type = ECPGmake_struct_type(rm->type->u.element->u.members, rm->type->u.element->type, rm->type->u.element->struct_sizeof);
+				else
+					type = ECPGmake_array_type(ECPGmake_simple_type(rm->type->u.element->type, rm->type->u.element->size), rm->type->size);
 				break;
 			default:
 				type = ECPGmake_simple_type(rm->type->type, rm->type->size);

src/interfaces/ecpg/preproc/type.h

@@ -115,6 +115,7 @@ struct cursor
 	char	   *name;
 	char	   *command;
 	char	   *connection;
+	bool	    opened;
 	struct arguments *argsinsert;
 	struct arguments *argsresult;
 	struct cursor *next;

src/interfaces/ecpg/preproc/variable.c

@@ -31,9 +31,11 @@ find_struct_member(char *name, char *str, struct ECPGstruct_member * members, in
 		c = *next;
 		*next = '\0';
 	}
+	printf("MM: Need to search for %s\n", str);
 
 	for (; members; members = members->next)
 	{
+		printf("MM: comparing %s\n§", members->name);
 		if (strcmp(members->name, str) == 0)
 		{
 			if (next == NULL)
@@ -104,10 +106,11 @@ find_struct_member(char *name, char *str, struct ECPGstruct_member * members, in
 						return (find_struct_member(name, end, members->type->u.element->u.members, brace_level));
 						break;
 					case '.':
-						if (members->type->type != ECPGt_array)
+						printf("MM: Now searching for %s \n", end);
+						if (members->type->type == ECPGt_array)
 							return (find_struct_member(name, end, members->type->u.element->u.members, brace_level));
 						else
-							return (find_struct_member(name, next, members->type->u.members, brace_level));
+							return (find_struct_member(name, end, members->type->u.members, brace_level));
 						break;
 					default:
 						snprintf(errortext, sizeof(errortext), "incorrectly formed variable %s", name);