#include "catalog/catname.h"
#include "utils/numeric.h"
-#include "type.h"
#include "extern.h"
#ifdef MULTIBYTE
/*
* Variables containing simple states.
*/
-static int struct_level = 0;
+int struct_level = 0;
static char errortext[128];
static int QueryIsRule = 0, ForUpdateNotAllowed = 0;
-static enum ECPGttype actual_type[STRUCT_DEPTH];
+static struct this_type actual_type[STRUCT_DEPTH];
static char *actual_storage[STRUCT_DEPTH];
/* temporarily store struct members while creating the data structure */
struct ECPGtype ecpg_no_indicator = {ECPGt_NO_INDICATOR, 0L, {NULL}};
struct variable no_indicator = {"no_indicator", &ecpg_no_indicator, 0, NULL};
+struct ECPGtype ecpg_query = {ECPGt_char_variable, 0L, {NULL}};
+
/*
* Handle the filename and line numbering.
*/
free(stmt);
}
+static struct typedefs *
+get_typedef(char *name)
+{
+ struct typedefs *this;
+
+ for (this = types; this && strcmp(this->name, name); this = this->next);
+ if (!this)
+ {
+ sprintf(errortext, "invalid datatype '%s'", name);
+ yyerror(errortext);
+ }
+
+ return(this);
+}
+
+static void
+adjust_array(enum ECPGttype type_enum, int *dimension, int *length, int type_dimension, int type_index, bool pointer)
+{
+ if (type_index >= 0)
+ {
+ if (*length >= 0)
+ yyerror("No multi-dimensional array support");
+
+ *length = type_index;
+ }
+
+ if (type_dimension >= 0)
+ {
+ if (*dimension >= 0 && *length >= 0)
+ yyerror("No multi-dimensional array support");
+
+ if (*dimension >= 0)
+ *length = *dimension;
+
+ *dimension = type_dimension;
+ }
+
+ switch (type_enum)
+ {
+ case ECPGt_struct:
+ /* pointer has to get dimension 0 */
+ if (pointer)
+ {
+ *length = *dimension;
+ *dimension = 0;
+ }
+
+ if (*length >= 0)
+ yyerror("No multi-dimensional array support for structures");
+
+ break;
+ case ECPGt_varchar:
+ /* pointer has to get length 0 */
+ if (pointer)
+ *length=0;
+
+ /* one index is the string length */
+ if (*length < 0)
+ {
+ *length = *dimension;
+ *dimension = -1;
+ }
+
+ break;
+ case ECPGt_char:
+ case ECPGt_unsigned_char:
+ /* pointer has to get length 0 */
+ if (pointer)
+ *length=0;
+
+ /* one index is the string length */
+ if (*length < 0)
+ {
+ *length = (*dimension < 0) ? 1 : *dimension;
+ *dimension = -1;
+ }
+
+ break;
+ default:
+ /* a pointer has dimension = 0 */
+ if (pointer) {
+ *length = *dimension;
+ *dimension = 0;
+ }
+
+ if (*length >= 0)
+ yyerror("No multi-dimensional array support for simple data types");
+
+ break;
+ }
+}
+
%}
%union {
}
/* special embedded SQL token */
-%token SQL_BREAK SQL_CALL SQL_CONNECT SQL_CONNECTION SQL_CONTINUE
-%token SQL_DISCONNECT SQL_FOUND SQL_GO SQL_GOTO
-%token SQL_IDENTIFIED SQL_IMMEDIATE SQL_INDICATOR SQL_OPEN
-%token SQL_PREPARE SQL_RELEASE
-%token SQL_SECTION SQL_SEMI SQL_SQLERROR SQL_SQLPRINT SQL_START
-%token SQL_STOP SQL_WHENEVER SQL_SQLWARNING
+%token SQL_BOOL SQL_BREAK
+%token SQL_CALL SQL_CONNECT SQL_CONNECTION SQL_CONTINUE
+%token SQL_DEALLOCATE SQL_DISCONNECT SQL_ENUM
+%token SQL_FOUND SQL_FREE SQL_GO SQL_GOTO
+%token SQL_IDENTIFIED SQL_IMMEDIATE SQL_INDICATOR SQL_INT SQL_LONG
+%token SQL_OPEN SQL_PREPARE SQL_RELEASE SQL_REFERENCE
+%token SQL_SECTION SQL_SEMI SQL_SHORT SQL_SIGNED SQL_SQLERROR SQL_SQLPRINT
+%token SQL_SQLWARNING SQL_START SQL_STOP SQL_STRUCT SQL_UNSIGNED
+%token SQL_VAR SQL_WHENEVER
/* C token */
%token S_ANYTHING S_AUTO S_BOOL S_CHAR S_CONST S_DOUBLE S_ENUM S_EXTERN
DATABASE, DELIMITERS, DO, EACH, ENCODING, EXPLAIN, EXTEND,
FORWARD, FUNCTION, HANDLER,
INCREMENT, INDEX, INHERITS, INSTEAD, ISNULL,
- LANCOMPILER, LISTEN, UNLISTEN, LOAD, LOCATION, LOCK_P, MAXVALUE, MINVALUE, MOVE,
+ LANCOMPILER, LIMIT, LISTEN, UNLISTEN, LOAD, LOCATION, LOCK_P, MAXVALUE, MINVALUE, MOVE,
NEW, NOCREATEDB, NOCREATEUSER, NONE, NOTHING, NOTIFY, NOTNULL,
- OIDS, OPERATOR, PASSWORD, PROCEDURAL,
+ OFFSET, OIDS, OPERATOR, PASSWORD, PROCEDURAL,
RECIPE, RENAME, RESET, RETURNS, ROW, RULE,
SERIAL, SEQUENCE, SETOF, SHOW, START, STATEMENT, STDIN, STDOUT, TRUSTED,
UNLISTEN, UNTIL, VACUUM, VALID, VERBOSE, VERSION
%type <str> index_opt_unique IndexStmt set_opt func_return def_rest
%type <str> func_args_list func_args opt_with ProcedureStmt def_arg
%type <str> def_elem def_list definition def_name def_type DefineStmt
-%type <str> opt_instead event event_object OptStmtMulti OptStmtBlock
-%type <str> OptStmtList RuleStmt opt_column opt_name oper_argtypes
+%type <str> opt_instead event event_object RuleActionList,
+%type <str> RuleActionBlock RuleActionMulti
+%type <str> RuleStmt opt_column opt_name oper_argtypes
%type <str> MathOp RemoveFuncStmt aggr_argtype for_update_clause
%type <str> RemoveAggrStmt remove_type RemoveStmt ExtendStmt RecipeStmt
%type <str> RemoveOperStmt RenameStmt all_Op user_valid_clause
%type <str> user_createuser_clause user_group_list user_group_clause
%type <str> CreateUserStmt AlterUserStmt CreateSeqStmt OptSeqList
%type <str> OptSeqElem TriggerForSpec TriggerForOpt TriggerForType
-%type <str> DropTrigStmt TriggerOneEvent TriggerEvents
+%type <str> DropTrigStmt TriggerOneEvent TriggerEvents RuleActionStmt
%type <str> TriggerActionTime CreateTrigStmt DropPLangStmt PLangTrusted
%type <str> CreatePLangStmt IntegerOnly TriggerFuncArgs TriggerFuncArg
%type <str> ViewStmt LoadStmt CreatedbStmt opt_database1 opt_database2 location
%type <str> GrantStmt privileges operation_commalist operation
%type <str> cursor_clause opt_cursor opt_readonly opt_of opt_lmode
%type <str> case_expr when_clause_list case_default case_arg when_clause
-%type <str> select_w_o_sort
+%type <str> select_w_o_sort opt_select_limit select_limit_value,
+%type <str> select_offset_value
-%type <str> ECPGWhenever ECPGConnect connection_target ECPGOpen open_opts
-%type <str> indicator ECPGExecute ecpg_expr dotext
+%type <str> ECPGWhenever ECPGConnect connection_target ECPGOpen opt_using
+%type <str> indicator ECPGExecute ecpg_expr dotext ECPGPrepare
%type <str> storage_clause opt_initializer vartext c_anything blockstart
%type <str> blockend variable_list variable var_anything do_anything
%type <str> opt_pointer cvariable ECPGDisconnect dis_name
%type <str> stmt symbol opt_symbol ECPGRelease execstring server_name
-%type <str> connection_object opt_server opt_port c_thing
+%type <str> connection_object opt_server opt_port c_thing opt_reference
%type <str> user_name opt_user char_variable ora_user ident
%type <str> db_prefix server opt_options opt_connection_name
-%type <str> ECPGSetConnection c_line cpp_line s_enum
-%type <str> enum_type
+%type <str> ECPGSetConnection c_line cpp_line s_enum ECPGTypedef
+%type <str> enum_type civariableonly ECPGCursorStmt ECPGDeallocate
+%type <str> ECPGFree ECPGDeclare ECPGVar sql_variable_declarations
+%type <str> sql_declaration sql_variable_list sql_variable
+%type <str> struct_type s_struct declaration variable_declarations
-%type <type_enum> simple_type
+%type <type_enum> simple_type varchar_type
-%type <type> type
+%type <type> type ctype
%type <action> action
-%type <index> opt_array_bounds nest_array_bounds
+%type <index> opt_array_bounds nest_array_bounds opt_type_array_bounds
+%type <index> nest_type_array_bounds
%%
prog: statements;
whenever_action(0);
free($1);
}
+ | ECPGCursorStmt {
+ fputs($1, yyout);
+ free($1);
+ }
+ | ECPGDeallocate {
+ fputs($1, yyout);
+ whenever_action(0);
+ free($1);
+ }
+ | ECPGDeclare {
+ fputs($1, yyout);
+ free($1);
+ }
| ECPGDisconnect {
fprintf(yyout, "ECPGdisconnect(__LINE__, \"%s\");", $1);
whenever_action(0);
free($1);
}
| ECPGExecute {
- fprintf(yyout, "ECPGdo(__LINE__, %s, ECPGt_EOIT, ECPGt_EORT);", $1);
+ output_statement($1, 0);
+ }
+ | ECPGFree {
+ fprintf(yyout, "ECPGdeallocate(__LINE__, \"%s\");", $1);
whenever_action(0);
free($1);
}
fprintf(yyout, "ECPGdo(__LINE__, \"%s\",", ptr->command);
/* dump variables to C file*/
dump_variables(ptr->argsinsert, 0);
+ dump_variables(argsinsert, 0);
fputs("ECPGt_EOIT, ", yyout);
dump_variables(ptr->argsresult, 0);
fputs("ECPGt_EORT);", yyout);
whenever_action(0);
free($1);
}
+ | ECPGPrepare {
+ fprintf(yyout, "ECPGprepare(__LINE__, %s);", $1);
+ whenever_action(0);
+ free($1);
+ }
| ECPGRelease { /* output already done */ }
| ECPGSetConnection {
fprintf(yyout, "ECPGsetconn(__LINE__, %s);", $1);
whenever_action(0);
free($1);
}
+ | ECPGTypedef {
+ fputs($1, yyout);
+ free($1);
+ }
+ | ECPGVar {
+ fputs($1, yyout);
+ free($1);
+ }
| ECPGWhenever {
fputs($1, yyout);
output_line_number();
free($1);
}
- | ECPGPrepare {
- yyerror("PREPARE is not supported yet.");
- }
+ ;
+
/*
* We start with a lot of stuff that's very similar to the backend's parsing
CreateStmt: CREATE OptTemp TABLE relation_name '(' OptTableElementList ')'
OptInherit
{
- $$ = cat5_str(make1_str("create"), $2, make1_str("table"), make3_str(make1_str("("), $6, make1_str(")")), $8);
+ $$ = cat3_str(cat4_str(make1_str("create"), $2, make1_str("table"), $4), make3_str(make1_str("("), $6, make1_str(")")), $8);
}
;
RuleStmt: CREATE RULE name AS
{ QueryIsRule=1; }
ON event TO event_object where_clause
- DO opt_instead OptStmtList
+ DO opt_instead RuleActionList
{
$$ = cat2_str(cat5_str(cat5_str(make1_str("create rule"), $3, make1_str("as on"), $7, make1_str("to")), $9, $10, make1_str("do"), $12), $13);
}
;
-OptStmtList: NOTHING { $$ = make1_str("nothing"); }
- | OptimizableStmt { $$ = $1; }
- | '[' OptStmtBlock ']' { $$ = cat3_str(make1_str("["), $2, make1_str("]")); }
-/***S*I*D***/
-/* We comment this out because it produces a shift / reduce conflict
- * with the select_w_o_sort rule */
-/* | '(' OptStmtBlock ')' { $$ = cat3_str(make1_str("("), $2, make1_str(")")); }*/
- ;
+RuleActionList: NOTHING { $$ = make1_str("nothing"); }
+ | SelectStmt { $$ = $1; }
+ | RuleActionStmt { $$ = $1; }
+ | '[' RuleActionBlock ']' { $$ = cat3_str(make1_str("["), $2, make1_str("]")); }
+ | '(' RuleActionBlock ')' { $$ = cat3_str(make1_str("("), $2, make1_str(")")); }
+ ;
-OptStmtBlock: OptStmtMulti
- { $$ = $1; }
- | OptimizableStmt
- { $$ = $1; }
+RuleActionBlock: RuleActionMulti { $$ = $1; }
+ | RuleActionStmt { $$ = $1; }
;
-OptStmtMulti: OptStmtMulti OptimizableStmt ';'
+RuleActionMulti: RuleActionMulti RuleActionStmt
+ { $$ = cat2_str($1, $2); }
+ | RuleActionMulti RuleActionStmt ';'
{ $$ = cat3_str($1, $2, make1_str(";")); }
-/***S*I***/
-/* We comment the next rule because it seems to be redundant
- * and produces 16 shift/reduce conflicts with the new SelectStmt rule
- * needed for EXCEPT and INTERSECT. So far I did not notice any
- * violations by removing the rule! */
-/* | OptStmtMulti OptimizableStmt
- { $$ = cat2_str($1, $2); }*/
- | OptimizableStmt ';'
+ | RuleActionStmt ';'
{ $$ = cat2_str($1, make1_str(";")); }
;
+RuleActionStmt: InsertStmt
+ | UpdateStmt
+ | DeleteStmt
+ | NotifyStmt
+ ;
+
event_object: relation_name '.' attr_name
{
$$ = make3_str($1, make1_str("."), $3);
{
if (strcmp($2, ptr->name) == 0)
{
- /* re-definition is a bug*/
+ /* re-definition is a bug */
sprintf(errortext, "cursor %s already defined", $2);
yyerror(errortext);
}
/* The new 'SelectStmt' rule adapted for the optional use of INTERSECT EXCEPT a nd UNION
* accepts the use of '(' and ')' to select an order of set operations.
*/
-SelectStmt: select_w_o_sort sort_clause for_update_clause
+SelectStmt: select_w_o_sort sort_clause for_update_clause opt_select_limit
{
if (strlen($3) > 0 && ForUpdateNotAllowed != 0)
yyerror("SELECT FOR UPDATE is not allowed in this context");
ForUpdateNotAllowed = 0;
- $$ = cat3_str($1, $2, $3);
+ $$ = cat4_str($1, $2, $3, $4);
}
/***S*I***/
| /*EMPTY*/ { $$ = make1_str(""); }
;
+opt_select_limit: LIMIT select_limit_value ',' select_offset_value
+ { $$ = cat4_str(make1_str("limit"), $2, make1_str(","), $4); }
+ | LIMIT select_limit_value OFFSET select_offset_value
+ { $$ = cat4_str(make1_str("limit"), $2, make1_str("offset"), $4); }
+ | LIMIT select_limit_value
+ { $$ = cat2_str(make1_str("limit"), $2);; }
+ | OFFSET select_offset_value LIMIT select_limit_value
+ { $$ = cat4_str(make1_str("offset"), $2, make1_str("limit"), $4); }
+ | OFFSET select_offset_value
+ { $$ = cat2_str(make1_str("offset"), $2); }
+ | /* EMPTY */
+ { $$ = make1_str(""); }
+ ;
+
+select_limit_value: Iconst { $$ = $1; }
+ | ALL { $$ = make1_str("all"); }
+ | PARAM { $$ = make_name(); }
+ ;
+
+select_offset_value: Iconst { $$ = $1; }
+ | PARAM { $$ = make_name(); }
+ ;
+
/*
* jimmy bell-style recursive queries aren't supported in the
* current system.
generic: ident { $$ = $1; }
| TYPE_P { $$ = make1_str("type"); }
+ | SQL_BOOL { $$ = make1_str("bool"); }
+ | SQL_BREAK { $$ = make1_str("break"); }
+ | SQL_CALL { $$ = make1_str("call"); }
+ | SQL_CONNECT { $$ = make1_str("connect"); }
+ | SQL_CONNECTION { $$ = make1_str("connection"); }
+ | SQL_CONTINUE { $$ = make1_str("continue"); }
+ | SQL_DEALLOCATE { $$ = make1_str("deallocate"); }
+ | SQL_DISCONNECT { $$ = make1_str("disconnect"); }
+ | SQL_FOUND { $$ = make1_str("found"); }
+ | SQL_GO { $$ = make1_str("go"); }
+ | SQL_GOTO { $$ = make1_str("goto"); }
+ | SQL_IDENTIFIED { $$ = make1_str("identified"); }
+ | SQL_IMMEDIATE { $$ = make1_str("immediate"); }
+ | SQL_INDICATOR { $$ = make1_str("indicator"); }
+ | SQL_INT { $$ = make1_str("int"); }
+ | SQL_LONG { $$ = make1_str("long"); }
+ | SQL_OPEN { $$ = make1_str("open"); }
+ | SQL_PREPARE { $$ = make1_str("prepare"); }
+ | SQL_RELEASE { $$ = make1_str("release"); }
+ | SQL_SECTION { $$ = make1_str("section"); }
+ | SQL_SHORT { $$ = make1_str("short"); }
+ | SQL_SIGNED { $$ = make1_str("signed"); }
+ | SQL_SQLERROR { $$ = make1_str("sqlerror"); }
+ | SQL_SQLPRINT { $$ = make1_str("sqlprint"); }
+ | SQL_SQLWARNING { $$ = make1_str("sqlwarning"); }
+ | SQL_STOP { $$ = make1_str("stop"); }
+ | SQL_STRUCT { $$ = make1_str("struct"); }
+ | SQL_UNSIGNED { $$ = make1_str("unsigned"); }
+ | SQL_VAR { $$ = make1_str("var"); }
+ | SQL_WHENEVER { $$ = make1_str("whenever"); }
;
/* SQL92 numeric data types
$$ = make3_str(make1_str("trim("), $3, make1_str(")"));
}
| civariableonly
- { $$ = make1_str(";;"); }
+ { $$ = $1; }
;
opt_indirection: '[' ecpg_expr ']' opt_indirection
| VALID { $$ = make1_str("valid"); }
| VERSION { $$ = make1_str("version"); }
| ZONE { $$ = make1_str("zone"); }
+ | SQL_BOOL { $$ = make1_str("bool"); }
+ | SQL_BREAK { $$ = make1_str("break"); }
+ | SQL_CALL { $$ = make1_str("call"); }
+ | SQL_CONNECT { $$ = make1_str("connect"); }
+ | SQL_CONNECTION { $$ = make1_str("connection"); }
+ | SQL_CONTINUE { $$ = make1_str("continue"); }
+ | SQL_DEALLOCATE { $$ = make1_str("deallocate"); }
+ | SQL_DISCONNECT { $$ = make1_str("disconnect"); }
+ | SQL_FOUND { $$ = make1_str("found"); }
+ | SQL_GO { $$ = make1_str("go"); }
+ | SQL_GOTO { $$ = make1_str("goto"); }
+ | SQL_IDENTIFIED { $$ = make1_str("identified"); }
+ | SQL_IMMEDIATE { $$ = make1_str("immediate"); }
+ | SQL_INDICATOR { $$ = make1_str("indicator"); }
+ | SQL_INT { $$ = make1_str("int"); }
+ | SQL_LONG { $$ = make1_str("long"); }
+ | SQL_OPEN { $$ = make1_str("open"); }
+ | SQL_PREPARE { $$ = make1_str("prepare"); }
+ | SQL_RELEASE { $$ = make1_str("release"); }
+ | SQL_SECTION { $$ = make1_str("section"); }
+ | SQL_SHORT { $$ = make1_str("short"); }
+ | SQL_SIGNED { $$ = make1_str("signed"); }
+ | SQL_SQLERROR { $$ = make1_str("sqlerror"); }
+ | SQL_SQLPRINT { $$ = make1_str("sqlprint"); }
+ | SQL_SQLWARNING { $$ = make1_str("sqlwarning"); }
+ | SQL_STOP { $$ = make1_str("stop"); }
+ | SQL_STRUCT { $$ = make1_str("struct"); }
+ | SQL_UNSIGNED { $$ = make1_str("unsigned"); }
+ | SQL_VAR { $$ = make1_str("var"); }
+ | SQL_WHENEVER { $$ = make1_str("whenever"); }
;
/* Column label
* Allowed labels in "AS" clauses.
* and now special embedded SQL stuff
*/
-/*
- * variable declaration inside the exec sql declare block
- */
-ECPGDeclaration: sql_startdeclare variable_declarations sql_enddeclare {}
-
-sql_startdeclare : ecpgstart BEGIN_TRANS DECLARE SQL_SECTION SQL_SEMI {
- fputs("/* exec sql begin declare section */\n", yyout);
- output_line_number();
- }
-
-sql_enddeclare: ecpgstart END_TRANS DECLARE SQL_SECTION SQL_SEMI {
- fputs("/* exec sql end declare section */\n", yyout);
- output_line_number();
-}
-
-variable_declarations: /* empty */
- | declaration variable_declarations;
-
-declaration: storage_clause type
- {
- actual_storage[struct_level] = $1;
- actual_type[struct_level] = $2.type_enum;
- if ($2.type_enum != ECPGt_varchar && $2.type_enum != ECPGt_struct)
- fprintf(yyout, "%s %s", $1, $2.type_str);
- free($2.type_str);
- }
- variable_list ';' { fputc(';', yyout); }
-
-storage_clause : S_EXTERN { $$ = "extern"; }
- | S_STATIC { $$ = "static"; }
- | S_SIGNED { $$ = "signed"; }
- | S_CONST { $$ = "const"; }
- | S_REGISTER { $$ = "register"; }
- | S_AUTO { $$ = "auto"; }
- | /* empty */ { $$ = ""; }
-
-type: simple_type
- {
- $$.type_enum = $1;
- $$.type_str = mm_strdup(ECPGtype_name($1));
- }
- | struct_type
- {
- $$.type_enum = ECPGt_struct;
- $$.type_str = make1_str("");
- }
- | enum_type
- {
- $$.type_str = $1;
- $$.type_enum = ECPGt_int;
- }
-
-enum_type: s_enum '{' c_line '}'
- {
- $$ = cat4_str($1, make1_str("{"), $3, make1_str("}"));
- }
-
-s_enum: S_ENUM opt_symbol { $$ = cat2_str(make1_str("enum"), $2); }
-
-struct_type: s_struct '{' variable_declarations '}'
- {
- ECPGfree_struct_member(struct_member_list[struct_level]);
- free(actual_storage[struct_level--]);
- fputs("} ", yyout);
- }
-
-s_struct : S_STRUCT opt_symbol
- {
- struct_member_list[struct_level++] = NULL;
- if (struct_level >= STRUCT_DEPTH)
- yyerror("Too many levels in nested structure definition");
- fprintf(yyout, "struct %s {", $2);
- free($2);
- }
-
-opt_symbol: /* empty */ { $$ = make1_str(""); }
- | symbol { $$ = $1; }
-
-simple_type: S_SHORT { $$ = ECPGt_short; }
- | S_UNSIGNED S_SHORT { $$ = ECPGt_unsigned_short; }
- | S_INT { $$ = ECPGt_int; }
- | S_UNSIGNED S_INT { $$ = ECPGt_unsigned_int; }
- | S_LONG { $$ = ECPGt_long; }
- | S_UNSIGNED S_LONG { $$ = ECPGt_unsigned_long; }
- | S_FLOAT { $$ = ECPGt_float; }
- | S_DOUBLE { $$ = ECPGt_double; }
- | S_BOOL { $$ = ECPGt_bool; };
- | S_CHAR { $$ = ECPGt_char; }
- | S_UNSIGNED S_CHAR { $$ = ECPGt_unsigned_char; }
- | S_VARCHAR { $$ = ECPGt_varchar; }
-
-variable_list: variable
- | variable_list ','
- {
- if (actual_type[struct_level] != ECPGt_varchar)
- fputs(", ", yyout);
- else
- fputs(";\n ", yyout);
- } variable
-
-variable: opt_pointer symbol opt_array_bounds opt_initializer
- {
- struct ECPGtype * type;
- int dimension = $3.index1; /* dimension of array */
- int length = $3.index2; /* lenght of string */
- char dim[14L];
-
- switch (actual_type[struct_level])
- {
- case ECPGt_struct:
- /* pointer has to get dimension 0 */
- if (strlen($1) > 0)
- {
- length = dimension;
- dimension = 0;
- }
-
- if (length >= 0)
- yyerror("No multi-dimensional array support for structures");
-
- if (dimension == 1 || dimension < 0)
- type = ECPGmake_struct_type(struct_member_list[struct_level]);
- else
- type = ECPGmake_array_type(ECPGmake_struct_type(struct_member_list[struct_level]), dimension);
-
- fprintf(yyout, "%s%s%s%s", $1, $2, $3.str, $4);
- break;
- case ECPGt_varchar:
- /* pointer has to get length 0 */
- if (strlen($1) > 0)
- length=0;
-
- /* one index is the string length */
- if (length < 0)
- {
- length = dimension;
- dimension = 1;
- }
-
- if (dimension == 1)
- type = ECPGmake_simple_type(actual_type[struct_level], length);
- else
- type = ECPGmake_array_type(ECPGmake_simple_type(actual_type[struct_level], length), dimension);
-
- switch(dimension)
- {
- case 0:
- strcpy(dim, "[]");
- break;
- case 1:
- *dim = '\0';
- break;
- default:
- sprintf(dim, "[%d]", dimension);
- break;
- }
- if (length > 0)
- fprintf(yyout, "%s struct varchar_%s { int len; char arr[%d]; } %s%s", actual_storage[struct_level], $2, length, $2, dim);
- else
- fprintf(yyout, "%s struct varchar_%s { int len; char *arr; } %s%s", actual_storage[struct_level], $2, $2, dim);
- break;
- case ECPGt_char:
- case ECPGt_unsigned_char:
- /* pointer has to get length 0 */
- if (strlen($1) > 0)
- length=0;
-
- /* one index is the string length */
- if (length < 0)
- {
- length = (dimension < 0) ? 1 : dimension;
- dimension = 1;
- }
-
- if (dimension == 1)
- type = ECPGmake_simple_type(actual_type[struct_level], length);
- else
- type = ECPGmake_array_type(ECPGmake_simple_type(actual_type[struct_level], length), dimension);
-
- fprintf(yyout, "%s%s%s%s", $1, $2, $3.str, $4);
- break;
- default:
- /* a pointer has dimension = 0 */
- if (strlen($1) > 0) {
- length = dimension;
- dimension = 0;
- }
-
- if (length >= 0)
- yyerror("No multi-dimensional array support for simple data types");
-
- if (dimension == 1 || dimension < 0)
- type = ECPGmake_simple_type(actual_type[struct_level], 1);
- else
- type = ECPGmake_array_type(ECPGmake_simple_type(actual_type[struct_level], 1), dimension);
-
- fprintf(yyout, "%s%s%s%s", $1, $2, $3.str, $4);
- break;
- }
-
- if (struct_level == 0)
- new_variable($2, type);
- else
- ECPGmake_struct_member($2, type, &(struct_member_list[struct_level - 1]));
-
- free($1);
- free($2);
- free($3.str);
- free($4);
- }
-
-opt_initializer: /* empty */ { $$ = make1_str(""); }
- | '=' vartext { $$ = make2_str(make1_str("="), $2); }
-
-opt_pointer: /* empty */ { $$ = make1_str(""); }
- | '*' { $$ = make1_str("*"); }
-
/*
* the exec sql connect statement: connect to the given database
*/
| /* empty */ { $$ = make1_str(""); }
/*
- * the exec sql disconnect statement: disconnect from the given database
+ * Declare a prepared cursor. The syntax is different from the standard
+ * declare statement, so we create a new rule.
*/
-ECPGDisconnect: SQL_DISCONNECT dis_name { $$ = $2; }
+ECPGCursorStmt: DECLARE name opt_cursor CURSOR FOR ident cursor_clause
+ {
+ struct cursor *ptr, *this;
+ struct variable *thisquery = (struct variable *)mm_alloc(sizeof(struct variable));
-dis_name: connection_object { $$ = $1; }
- | CURRENT { $$ = make1_str("CURRENT"); }
- | ALL { $$ = make1_str("ALL"); }
- | /* empty */ { $$ = make1_str("CURRENT"); }
+ for (ptr = cur; ptr != NULL; ptr = ptr->next)
+ {
+ if (strcmp($2, ptr->name) == 0)
+ {
+ /* re-definition is a bug */
+ sprintf(errortext, "cursor %s already defined", $2);
+ yyerror(errortext);
+ }
+ }
-connection_object: connection_target { $$ = $1; }
- | DEFAULT { $$ = make1_str("DEFAULT"); }
+ this = (struct cursor *) mm_alloc(sizeof(struct cursor));
-/*
- * execute a given string as sql command
- */
-ECPGExecute : EXECUTE SQL_IMMEDIATE execstring { $$ = $3; };
+ /* initial definition */
+ this->next = cur;
+ this->name = $2;
+ this->command = cat5_str(make1_str("declare"), mm_strdup($2), $3, make1_str("cursor for ;;"), $7);
+ this->argsresult = NULL;
-execstring: cvariable |
- CSTRING { $$ = make3_str(make1_str("\""), $1, make1_str("\"")); };
+ thisquery->type = &ecpg_query;
+ thisquery->brace_level = 0;
+ thisquery->next = NULL;
+ thisquery->name = (char *) mm_alloc(sizeof("ECPGprepared_statement(\"\")") + strlen($6));
+ sprintf(thisquery->name, "ECPGprepared_statement(\"%s\")", $6);
-/*
- * open is an open cursor, at the moment this has to be removed
- */
-ECPGOpen: SQL_OPEN name open_opts {
- $$ = $2;
-};
+ this->argsinsert = NULL;
+ add_variable(&(this->argsinsert), thisquery, &no_indicator);
-open_opts: /* empty */ { $$ = make1_str(""); }
- | USING cvariable {
- yyerror ("open cursor with variables not implemented yet");
+ cur = this;
+
+ $$ = cat3_str(make1_str("/*"), mm_strdup(this->command), make1_str("*/"));
}
+ ;
/*
- * for compatibility with ORACLE we will also allow the keyword RELEASE
- * after a transaction statement to disconnect from the database.
+ * the exec sql deallocate prepare command to deallocate a previously
+ * prepared statement
*/
+ECPGDeallocate: SQL_DEALLOCATE SQL_PREPARE ident { $$ = make3_str(make1_str("ECPGdeallocate(__LINE__, \""), $3, make1_str("\");")); }
-ECPGRelease: TransactionStmt SQL_RELEASE
+/*
+ * variable declaration inside the exec sql declare block
+ */
+ECPGDeclaration: sql_startdeclare
{
- if (strncmp($1, "begin", 5) == 0)
- yyerror("RELEASE does not make sense when beginning a transaction");
-
- fprintf(yyout, "ECPGtrans(__LINE__, \"%s\");", $1);
+ fputs("/* exec sql begin declare section */", yyout);
+ output_line_number();
+ }
+ variable_declarations sql_enddeclare
+ {
+ fprintf(yyout, "%s/* exec sql end declare section */", $3);
+ free($3);
+ output_line_number();
+ }
+
+sql_startdeclare : ecpgstart BEGIN_TRANS DECLARE SQL_SECTION SQL_SEMI {}
+
+sql_enddeclare: ecpgstart END_TRANS DECLARE SQL_SECTION SQL_SEMI {}
+
+variable_declarations: /* empty */
+ {
+ $$ = make1_str("");
+ }
+ | declaration variable_declarations
+ {
+ $$ = cat2_str($1, $2);
+ }
+
+declaration: storage_clause
+ {
+ actual_storage[struct_level] = mm_strdup($1);
+ }
+ type
+ {
+ actual_type[struct_level].type_enum = $3.type_enum;
+ actual_type[struct_level].type_dimension = $3.type_dimension;
+ actual_type[struct_level].type_index = $3.type_index;
+ }
+ variable_list ';'
+ {
+ $$ = cat4_str($1, $3.type_str, $5, make1_str(";\n"));
+ }
+
+storage_clause : S_EXTERN { $$ = make1_str("extern"); }
+ | S_STATIC { $$ = make1_str("static"); }
+ | S_SIGNED { $$ = make1_str("signed"); }
+ | S_CONST { $$ = make1_str("const"); }
+ | S_REGISTER { $$ = make1_str("register"); }
+ | S_AUTO { $$ = make1_str("auto"); }
+ | /* empty */ { $$ = make1_str(""); }
+
+type: simple_type
+ {
+ $$.type_enum = $1;
+ $$.type_str = mm_strdup(ECPGtype_name($1));
+ $$.type_dimension = -1;
+ $$.type_index = -1;
+ }
+ | varchar_type
+ {
+ $$.type_enum = ECPGt_varchar;
+ $$.type_str = make1_str("");
+ $$.type_dimension = -1;
+ $$.type_index = -1;
+ }
+ | struct_type
+ {
+ $$.type_enum = ECPGt_struct;
+ $$.type_str = $1;
+ $$.type_dimension = -1;
+ $$.type_index = -1;
+ }
+ | enum_type
+ {
+ $$.type_str = $1;
+ $$.type_enum = ECPGt_int;
+ $$.type_dimension = -1;
+ $$.type_index = -1;
+ }
+ | symbol
+ {
+ /* this is for typedef'ed types */
+ struct typedefs *this = get_typedef($1);
+
+ $$.type_str = mm_strdup(this->name);
+ $$.type_enum = this->type->type_enum;
+ $$.type_dimension = this->type->type_dimension;
+ $$.type_index = this->type->type_index;
+ struct_member_list[struct_level] = ECPGstruct_member_dup(this->struct_member_list);
+ }
+
+enum_type: s_enum '{' c_line '}'
+ {
+ $$ = cat4_str($1, make1_str("{"), $3, make1_str("}"));
+ }
+
+s_enum: S_ENUM opt_symbol { $$ = cat2_str(make1_str("enum"), $2); }
+
+struct_type: s_struct '{' variable_declarations '}'
+ {
+ ECPGfree_struct_member(struct_member_list[struct_level]);
+ free(actual_storage[struct_level--]);
+ $$ = cat4_str($1, make1_str("{"), $3, make1_str("}"));
+ }
+
+s_struct : S_STRUCT opt_symbol
+ {
+ struct_member_list[struct_level++] = NULL;
+ if (struct_level >= STRUCT_DEPTH)
+ yyerror("Too many levels in nested structure definition");
+ $$ = cat2_str(make1_str("struct"), $2);
+ }
+
+opt_symbol: /* empty */ { $$ = make1_str(""); }
+ | symbol { $$ = $1; }
+
+simple_type: S_SHORT { $$ = ECPGt_short; }
+ | S_UNSIGNED S_SHORT { $$ = ECPGt_unsigned_short; }
+ | S_INT { $$ = ECPGt_int; }
+ | S_UNSIGNED S_INT { $$ = ECPGt_unsigned_int; }
+ | S_LONG { $$ = ECPGt_long; }
+ | S_UNSIGNED S_LONG { $$ = ECPGt_unsigned_long; }
+ | S_FLOAT { $$ = ECPGt_float; }
+ | S_DOUBLE { $$ = ECPGt_double; }
+ | S_BOOL { $$ = ECPGt_bool; };
+ | S_CHAR { $$ = ECPGt_char; }
+ | S_UNSIGNED S_CHAR { $$ = ECPGt_unsigned_char; }
+
+varchar_type: S_VARCHAR { $$ = ECPGt_varchar; }
+
+variable_list: variable
+ {
+ $$ = $1;
+ }
+ | variable_list ',' variable
+ {
+ $$ = cat3_str($1, make1_str(","), $3);
+ }
+
+variable: opt_pointer symbol opt_array_bounds opt_initializer
+ {
+ struct ECPGtype * type;
+ int dimension = $3.index1; /* dimension of array */
+ int length = $3.index2; /* lenght of string */
+ char dim[14L], ascii_len[12];
+
+ adjust_array(actual_type[struct_level].type_enum, &dimension, &length, actual_type[struct_level].type_dimension, actual_type[struct_level].type_index, strlen($1));
+
+ switch (actual_type[struct_level].type_enum)
+ {
+ case ECPGt_struct:
+ if (dimension < 0)
+ type = ECPGmake_struct_type(struct_member_list[struct_level]);
+ else
+ type = ECPGmake_array_type(ECPGmake_struct_type(struct_member_list[struct_level]), dimension);
+
+ $$ = make4_str($1, mm_strdup($2), $3.str, $4);
+ break;
+ case ECPGt_varchar:
+ if (dimension == -1)
+ type = ECPGmake_simple_type(actual_type[struct_level].type_enum, length);
+ else
+ type = ECPGmake_array_type(ECPGmake_simple_type(actual_type[struct_level].type_enum, length), dimension);
+
+ switch(dimension)
+ {
+ case 0:
+ strcpy(dim, "[]");
+ break;
+ case -1:
+ case 1:
+ *dim = '\0';
+ break;
+ default:
+ sprintf(dim, "[%d]", dimension);
+ break;
+ }
+ sprintf(ascii_len, "%d", length);
+
+ if (length > 0)
+ $$ = make4_str(make5_str(mm_strdup(actual_storage[struct_level]), make1_str(" struct varchar_"), mm_strdup($2), make1_str(" { int len; char arr["), mm_strdup(ascii_len)), make1_str("]; } "), mm_strdup($2), mm_strdup(dim));
+ else
+ $$ = make4_str(make3_str(mm_strdup(actual_storage[struct_level]), make1_str(" struct varchar_"), mm_strdup($2)), make1_str(" { int len; char *arr; } "), mm_strdup($2), mm_strdup(dim));
+ break;
+ case ECPGt_char:
+ case ECPGt_unsigned_char:
+ if (dimension == -1)
+ type = ECPGmake_simple_type(actual_type[struct_level].type_enum, length);
+ else
+ type = ECPGmake_array_type(ECPGmake_simple_type(actual_type[struct_level].type_enum, length), dimension);
+
+ $$ = make4_str($1, mm_strdup($2), $3.str, $4);
+ break;
+ default:
+ if (dimension < 0)
+ type = ECPGmake_simple_type(actual_type[struct_level].type_enum, 1);
+ else
+ type = ECPGmake_array_type(ECPGmake_simple_type(actual_type[struct_level].type_enum, 1), dimension);
+
+ $$ = make4_str($1, mm_strdup($2), $3.str, $4);
+ break;
+ }
+
+ if (struct_level == 0)
+ new_variable($2, type);
+ else
+ ECPGmake_struct_member($2, type, &(struct_member_list[struct_level - 1]));
+
+ free($2);
+ }
+
+opt_initializer: /* empty */ { $$ = make1_str(""); }
+ | '=' vartext { $$ = make2_str(make1_str("="), $2); }
+
+opt_pointer: /* empty */ { $$ = make1_str(""); }
+ | '*' { $$ = make1_str("*"); }
+
+/*
+ * As long as the prepare statement is not supported by the backend, we will
+ * try to simulate it here so we get dynamic SQL
+ */
+ECPGDeclare: DECLARE STATEMENT ident
+ {
+ /* this is only supported for compatibility */
+ $$ = cat3_str(make1_str("/* declare statement"), $3, make1_str("*/"));
+ }
+/*
+ * the exec sql disconnect statement: disconnect from the given database
+ */
+ECPGDisconnect: SQL_DISCONNECT dis_name { $$ = $2; }
+
+dis_name: connection_object { $$ = $1; }
+ | CURRENT { $$ = make1_str("CURRENT"); }
+ | ALL { $$ = make1_str("ALL"); }
+ | /* empty */ { $$ = make1_str("CURRENT"); }
+
+connection_object: connection_target { $$ = $1; }
+ | DEFAULT { $$ = make1_str("DEFAULT"); }
+
+/*
+ * execute a given string as sql command
+ */
+ECPGExecute : EXECUTE SQL_IMMEDIATE execstring
+ {
+ struct variable *thisquery = (struct variable *)mm_alloc(sizeof(struct variable));
+
+ thisquery->type = &ecpg_query;
+ thisquery->brace_level = 0;
+ thisquery->next = NULL;
+ thisquery->name = $3;
+
+ add_variable(&argsinsert, thisquery, &no_indicator);
+
+ $$ = make1_str(";;");
+ }
+ | EXECUTE ident
+ {
+ struct variable *thisquery = (struct variable *)mm_alloc(sizeof(struct variable));
+
+ thisquery->type = &ecpg_query;
+ thisquery->brace_level = 0;
+ thisquery->next = NULL;
+ thisquery->name = (char *) mm_alloc(sizeof("ECPGprepared_statement(\"\")") + strlen($2));
+ sprintf(thisquery->name, "ECPGprepared_statement(\"%s\")", $2);
+
+ add_variable(&argsinsert, thisquery, &no_indicator);
+ } opt_using
+ {
+ $$ = make1_str(";;");
+ }
+
+execstring: char_variable |
+ CSTRING { $$ = make3_str(make1_str("\""), $1, make1_str("\"")); };
+
+/*
+ * the exec sql free command to deallocate a previously
+ * prepared statement
+ */
+ECPGFree: SQL_FREE ident { $$ = $2; }
+
+/*
+ * open is an open cursor, at the moment this has to be removed
+ */
+ECPGOpen: SQL_OPEN name opt_using {
+ $$ = $2;
+};
+
+opt_using: /* empty */ { $$ = make1_str(""); }
+ | USING variablelist {
+ /* yyerror ("open cursor with variables not implemented yet"); */
+ $$ = make1_str("");
+ }
+
+variablelist: cinputvariable | cinputvariable ',' variablelist
+
+/*
+ * As long as the prepare statement is not supported by the backend, we will
+ * try to simulate it here so we get dynamic SQL
+ */
+ECPGPrepare: SQL_PREPARE ident FROM char_variable
+ {
+ $$ = make4_str(make1_str("\""), $2, make1_str("\", "), $4);
+ }
+
+/*
+ * for compatibility with ORACLE we will also allow the keyword RELEASE
+ * after a transaction statement to disconnect from the database.
+ */
+
+ECPGRelease: TransactionStmt SQL_RELEASE
+ {
+ if (strncmp($1, "begin", 5) == 0)
+ yyerror("RELEASE does not make sense when beginning a transaction");
+
+ fprintf(yyout, "ECPGtrans(__LINE__, \"%s\");", $1);
whenever_action(0);
fprintf(yyout, "ECPGdisconnect(\"\");");
whenever_action(0);
{
$$ = $3;
}
+
+/*
+ * define a new type for embedded SQL
+ */
+ECPGTypedef: TYPE_P symbol IS ctype opt_type_array_bounds opt_reference
+ {
+ /* add entry to list */
+ struct typedefs *ptr, *this;
+ int dimension = $5.index1;
+ int length = $5.index2;
+
+ for (ptr = types; ptr != NULL; ptr = ptr->next)
+ {
+ if (strcmp($2, ptr->name) == 0)
+ {
+ /* re-definition is a bug */
+ sprintf(errortext, "type %s already defined", $2);
+ yyerror(errortext);
+ }
+ }
+
+ adjust_array($4.type_enum, &dimension, &length, $4.type_dimension, $4.type_index, strlen($6));
+
+ this = (struct typedefs *) mm_alloc(sizeof(struct typedefs));
+
+ /* initial definition */
+ this->next = types;
+ this->name = $2;
+ this->type = (struct this_type *) mm_alloc(sizeof(struct this_type));
+ this->type->type_enum = $4.type_enum;
+ this->type->type_str = mm_strdup($2);
+ this->type->type_dimension = dimension; /* dimension of array */
+ this->type->type_index = length; /* lenght of string */
+ this->struct_member_list = struct_member_list[struct_level];
+
+ if ($4.type_enum != ECPGt_varchar &&
+ $4.type_enum != ECPGt_char &&
+ $4.type_enum != ECPGt_unsigned_char &&
+ this->type->type_index >= 0)
+ yyerror("No multi-dimensional array support for simple data types");
+
+ types = this;
+
+ $$ = cat5_str(cat3_str(make1_str("/* exec sql type"), mm_strdup($2), make1_str("is")), mm_strdup($4.type_str), mm_strdup($5.str), $6, make1_str("*/"));
+ }
+
+opt_type_array_bounds: '[' ']' nest_type_array_bounds
+ {
+ $$.index1 = 0;
+ $$.index2 = $3.index1;
+ $$.str = cat2_str(make1_str("[]"), $3.str);
+ }
+ | '(' ')' nest_type_array_bounds
+ {
+ $$.index1 = 0;
+ $$.index2 = $3.index1;
+ $$.str = cat2_str(make1_str("[]"), $3.str);
+ }
+ | '[' Iconst ']' nest_type_array_bounds
+ {
+ $$.index1 = atol($2);
+ $$.index2 = $4.index1;
+ $$.str = cat4_str(make1_str("["), $2, make1_str("]"), $4.str);
+ }
+ | '(' Iconst ')' nest_type_array_bounds
+ {
+ $$.index1 = atol($2);
+ $$.index2 = $4.index1;
+ $$.str = cat4_str(make1_str("["), $2, make1_str("]"), $4.str);
+ }
+ | /* EMPTY */
+ {
+ $$.index1 = -1;
+ $$.index2 = -1;
+ $$.str= make1_str("");
+ }
+ ;
+
+nest_type_array_bounds: '[' ']' nest_type_array_bounds
+ {
+ $$.index1 = 0;
+ $$.index2 = $3.index1;
+ $$.str = cat2_str(make1_str("[]"), $3.str);
+ }
+ | '(' ')' nest_type_array_bounds
+ {
+ $$.index1 = 0;
+ $$.index2 = $3.index1;
+ $$.str = cat2_str(make1_str("[]"), $3.str);
+ }
+ | '[' Iconst ']' nest_type_array_bounds
+ {
+ $$.index1 = atol($2);
+ $$.index2 = $4.index1;
+ $$.str = cat4_str(make1_str("["), $2, make1_str("]"), $4.str);
+ }
+ | '(' Iconst ')' nest_type_array_bounds
+ {
+ $$.index1 = atol($2);
+ $$.index2 = $4.index1;
+ $$.str = cat4_str(make1_str("["), $2, make1_str("]"), $4.str);
+ }
+ | /* EMPTY */
+ {
+ $$.index1 = -1;
+ $$.index2 = -1;
+ $$.str= make1_str("");
+ }
+ ;
+opt_reference: SQL_REFERENCE { $$ = make1_str("reference"); }
+ | /* empty */ { $$ = make1_str(""); }
+
+ctype: CHAR
+ {
+ $$.type_str = make1_str("char");
+ $$.type_enum = ECPGt_char;
+ $$.type_index = -1;
+ $$.type_dimension = -1;
+ }
+ | VARCHAR
+ {
+ $$.type_str = make1_str("varchar");
+ $$.type_enum = ECPGt_varchar;
+ $$.type_index = -1;
+ $$.type_dimension = -1;
+ }
+ | FLOAT
+ {
+ $$.type_str = make1_str("float");
+ $$.type_enum = ECPGt_float;
+ $$.type_index = -1;
+ $$.type_dimension = -1;
+ }
+ | DOUBLE
+ {
+ $$.type_str = make1_str("double");
+ $$.type_enum = ECPGt_double;
+ $$.type_index = -1;
+ $$.type_dimension = -1;
+ }
+ | opt_signed SQL_INT
+ {
+ $$.type_str = make1_str("int");
+ $$.type_enum = ECPGt_int;
+ $$.type_index = -1;
+ $$.type_dimension = -1;
+ }
+ | SQL_ENUM
+ {
+ $$.type_str = make1_str("int");
+ $$.type_enum = ECPGt_int;
+ $$.type_index = -1;
+ $$.type_dimension = -1;
+ }
+ | opt_signed SQL_SHORT
+ {
+ $$.type_str = make1_str("short");
+ $$.type_enum = ECPGt_short;
+ $$.type_index = -1;
+ $$.type_dimension = -1;
+ }
+ | opt_signed SQL_LONG
+ {
+ $$.type_str = make1_str("long");
+ $$.type_enum = ECPGt_long;
+ $$.type_index = -1;
+ $$.type_dimension = -1;
+ }
+ | SQL_BOOL
+ {
+ $$.type_str = make1_str("bool");
+ $$.type_enum = ECPGt_bool;
+ $$.type_index = -1;
+ $$.type_dimension = -1;
+ }
+ | SQL_UNSIGNED SQL_INT
+ {
+ $$.type_str = make1_str("unsigned int");
+ $$.type_enum = ECPGt_unsigned_int;
+ $$.type_index = -1;
+ $$.type_dimension = -1;
+ }
+ | SQL_UNSIGNED SQL_SHORT
+ {
+ $$.type_str = make1_str("unsigned short");
+ $$.type_enum = ECPGt_unsigned_short;
+ $$.type_index = -1;
+ $$.type_dimension = -1;
+ }
+ | SQL_UNSIGNED SQL_LONG
+ {
+ $$.type_str = make1_str("unsigned long");
+ $$.type_enum = ECPGt_unsigned_long;
+ $$.type_index = -1;
+ $$.type_dimension = -1;
+ }
+ | SQL_STRUCT
+ {
+ struct_member_list[struct_level++] = NULL;
+ if (struct_level >= STRUCT_DEPTH)
+ yyerror("Too many levels in nested structure definition");
+ } '{' sql_variable_declarations '}'
+ {
+ ECPGfree_struct_member(struct_member_list[struct_level--]);
+ $$.type_str = cat3_str(make1_str("struct {"), $4, make1_str("}"));
+ $$.type_enum = ECPGt_struct;
+ $$.type_index = -1;
+ $$.type_dimension = -1;
+ }
+ | symbol
+ {
+ struct typedefs *this = get_typedef($1);
+
+ $$.type_str = mm_strdup($1);
+ $$.type_enum = this->type->type_enum;
+ $$.type_dimension = this->type->type_dimension;
+ $$.type_index = this->type->type_index;
+ struct_member_list[struct_level] = this->struct_member_list;
+ }
+
+opt_signed: SQL_SIGNED | /* empty */
+
+sql_variable_declarations: /* empty */
+ {
+ $$ = make1_str("");
+ }
+ | sql_declaration sql_variable_declarations
+ {
+ $$ = cat2_str($1, $2);
+ }
+ ;
+
+sql_declaration: ctype
+ {
+ actual_type[struct_level].type_enum = $1.type_enum;
+ actual_type[struct_level].type_dimension = $1.type_dimension;
+ actual_type[struct_level].type_index = $1.type_index;
+ }
+ sql_variable_list SQL_SEMI
+ {
+ $$ = cat3_str($1.type_str, $3, make1_str(";"));
+ }
+
+sql_variable_list: sql_variable
+ {
+ $$ = $1;
+ }
+ | sql_variable_list ',' sql_variable
+ {
+ $$ = make3_str($1, make1_str(","), $3);
+ }
+
+sql_variable: opt_pointer symbol opt_array_bounds
+ {
+ int dimension = $3.index1;
+ int length = $3.index2;
+ struct ECPGtype * type;
+ char dim[14L];
+
+ adjust_array(actual_type[struct_level].type_enum, &dimension, &length, actual_type[struct_level].type_dimension, actual_type[struct_level].type_index, strlen($1));
+
+ switch (actual_type[struct_level].type_enum)
+ {
+ case ECPGt_struct:
+ if (dimension < 0)
+ type = ECPGmake_struct_type(struct_member_list[struct_level]);
+ else
+ type = ECPGmake_array_type(ECPGmake_struct_type(struct_member_list[struct_level]), dimension);
+
+ break;
+ case ECPGt_varchar:
+ if (dimension == -1)
+ type = ECPGmake_simple_type(actual_type[struct_level].type_enum, length);
+ else
+ type = ECPGmake_array_type(ECPGmake_simple_type(actual_type[struct_level].type_enum, length), dimension);
+
+ switch(dimension)
+ {
+ case 0:
+ strcpy(dim, "[]");
+ break;
+ case -1:
+ case 1:
+ *dim = '\0';
+ break;
+ default:
+ sprintf(dim, "[%d]", dimension);
+ break;
+ }
+
+ break;
+ case ECPGt_char:
+ case ECPGt_unsigned_char:
+ if (dimension == -1)
+ type = ECPGmake_simple_type(actual_type[struct_level].type_enum, length);
+ else
+ type = ECPGmake_array_type(ECPGmake_simple_type(actual_type[struct_level].type_enum, length), dimension);
+
+ break;
+ default:
+ if (length >= 0)
+ yyerror("No multi-dimensional array support for simple data types");
+
+ if (dimension < 0)
+ type = ECPGmake_simple_type(actual_type[struct_level].type_enum, 1);
+ else
+ type = ECPGmake_array_type(ECPGmake_simple_type(actual_type[struct_level].type_enum, 1), dimension);
+
+ break;
+ }
+
+ if (struct_level == 0)
+ new_variable($2, type);
+ else
+ ECPGmake_struct_member($2, type, &(struct_member_list[struct_level - 1]));
+
+ $$ = cat3_str($1, $2, $3.str);
+ }
+
+/*
+ * define the type of one variable for embedded SQL
+ */
+ECPGVar: SQL_VAR symbol IS ctype opt_type_array_bounds opt_reference
+ {
+ struct variable *p = find_variable($2);
+ int dimension = $5.index1;
+ int length = $5.index2;
+ struct ECPGtype * type;
+
+ adjust_array($4.type_enum, &dimension, &length, $4.type_dimension, $4.type_index, strlen($6));
+
+ switch ($4.type_enum)
+ {
+ case ECPGt_struct:
+ if (dimension < 0)
+ type = ECPGmake_struct_type(struct_member_list[struct_level]);
+ else
+ type = ECPGmake_array_type(ECPGmake_struct_type(struct_member_list[struct_level]), dimension);
+ break;
+ case ECPGt_varchar:
+ if (dimension == -1)
+ type = ECPGmake_simple_type($4.type_enum, length);
+ else
+ type = ECPGmake_array_type(ECPGmake_simple_type($4.type_enum, length), dimension);
+
+ break;
+ case ECPGt_char:
+ case ECPGt_unsigned_char:
+ if (dimension == -1)
+ type = ECPGmake_simple_type($4.type_enum, length);
+ else
+ type = ECPGmake_array_type(ECPGmake_simple_type($4.type_enum, length), dimension);
+
+ break;
+ default:
+ if (length >= 0)
+ yyerror("No multi-dimensional array support for simple data types");
+
+ if (dimension < 0)
+ type = ECPGmake_simple_type($4.type_enum, 1);
+ else
+ type = ECPGmake_array_type(ECPGmake_simple_type($4.type_enum, 1), dimension);
+
+ break;
+ }
+
+ ECPGfree_type(p->type);
+ p->type = type;
+
+ $$ = cat5_str(cat3_str(make1_str("/* exec sql var"), mm_strdup($2), make1_str("is")), mm_strdup($4.type_str), mm_strdup($5.str), $6, make1_str("*/"));
+ }
+
/*
* whenever statement: decide what to do in case of error/no data found
* according to SQL standards we lack: SQLSTATE, CONSTRAINT and SQLEXCEPTION
$<action>$.str = cat2_str(make1_str("call"), mm_strdup($<action>$.command));
}
-/*
- * As long as the prepare statement in not supported by the backend, we will
- * try to simulate it here so we get dynamic SQL
- */
-ECPGPrepare: SQL_PREPARE name FROM name
- {
- }
-
/* some other stuff for ecpg */
ecpg_expr: attr opt_indirection
{
| NOT ecpg_expr
{ $$ = cat2_str(make1_str("not"), $2); }
| civariableonly
- { $$ = make1_str(";;"); }
+ { $$ = $1; }
;
into_list : coutputvariable | into_list ',' coutputvariable;
civariableonly : cvariable {
add_variable(&argsinsert, find_variable($1), &no_indicator);
+ $$ = make1_str(";;");
}
cvariable: CVARIABLE { $$ = $1; }
projects / postgresql / commitdiff