Added blr_src_info. Error call stack now contains not only

procedures\triggers names but line\column numbers also.
Thanks to Eugeney Putilin for idea

src/dsql/dsql.cpp

@@ -2814,6 +2814,10 @@ void DSQL_pretty(const dsql_nod* node, int column)
 		verb = "lock_timeout"; // maybe show the timeout value?
 		break;
 
+	case nod_src_info:
+		verb = "source_info"; 
+		break;
+
 	default:
 		sprintf(s, "unknown type %d", node->nod_type);
 		verb = s;

src/dsql/gen.cpp

@@ -1227,6 +1227,12 @@ void GEN_statement( dsql_req* request, dsql_nod* node)
 		}
 		return;
 
+	case nod_src_info:
+		stuff(request, blr_src_info);
+		stuff_word(request, node->nod_line);
+		stuff_word(request, node->nod_column);
+		return;
+
 	default:
 		ERRD_post(isc_sqlerr, isc_arg_number, (SLONG) - 901,
 				  isc_arg_gds, isc_dsql_internal_err,

src/dsql/node.h

@@ -342,7 +342,8 @@ enum nod_t
 	nod_redef_trigger,
 	nod_tra_misc,
 	nod_lock_timeout,
-	nod_agg_list
+	nod_agg_list, 
+	nod_src_info
 };
 
 typedef nod_t NOD_TYPE;

src/dsql/parse.y

@@ -1587,10 +1587,27 @@ proc_statements	: proc_block
 			{ $$ = make_node (nod_list, 2, $1, $2); }
 		;
 
-proc_statement	: simple_proc_statement ';'
+proc_statement	: stmt_start_line stmt_start_column simple_proc_statement ';'
-		| complex_proc_statement
+			{ 
+				dsql_nod* src_info = make_node (nod_src_info, 2, $1, $2);
+				$$ = make_node (nod_list, 2, src_info, $3); 
+			}
+		| stmt_start_line stmt_start_column complex_proc_statement
+			{ 
+				dsql_nod* src_info = make_node (nod_src_info, 2, $1, $2);
+				$$ = make_node (nod_list, 2, src_info, $3); 
+			}
 		;
 
+stmt_start_line :
+		{ $$ = (dsql_nod*) (IPTR) lex.lines_bk; }
+
+stmt_start_column :
+		{ 
+			const USHORT column = (lex.last_token_bk - lex.line_start_bk + 1);
+			$$ = (dsql_nod*) (IPTR) column;
+		}
+		
 simple_proc_statement	: assignment
 		| insert
 		| update

src/dsql/pass1.cpp

@@ -1727,6 +1727,13 @@ dsql_nod* PASS1_statement(dsql_req* request, dsql_nod* input, bool proc_flag)
 		}
 		return input;
 
+	case nod_src_info:
+		{
+			input->nod_line = (USHORT) (IPTR) input->nod_arg[0];
+			input->nod_column = (USHORT) (IPTR) input->nod_arg[1];
+			return input;
+		}
+
 	default:
 		ERRD_post(isc_sqlerr, isc_arg_number, (SLONG) - 901,
 				  isc_arg_gds, isc_dsql_command_err,

src/jrd/blp.h

@@ -212,6 +212,7 @@ static const struct
 	{"lowcase", one},
 	{"strlen", strlength},
 	{"trim", trim},
+	{"src_info", src_info},
 	{0, 0}
 };
 

src/jrd/blr.h

@@ -333,4 +333,9 @@
 #define blr_cursor_close		(unsigned char)1
 #define blr_cursor_fetch		(unsigned char)2
 
+/* FB 2.1 specific BLR */
+
+/* Source code line and column numbers */
+#define blr_src_info		(unsigned char)184
+
 #endif /* JRD_BLR_H */

src/jrd/exe.cpp

@@ -896,6 +896,9 @@ void EXE_start(thread_db* tdbb, jrd_req* request, jrd_tra* transaction)
 		VIO_start_save_point(tdbb, transaction);
 	}
 
+	request->req_src_line = 0;
+	request->req_src_column = 0;
+
 #ifdef WIN_NT
 	START_CHECK_FOR_EXCEPTIONS(NULL);
 #endif
@@ -1541,8 +1544,16 @@ static void stuff_stack_trace(const jrd_req* request)
 				isEmpty = false;
 				sTrace += name + "'";
 			}
-			else
+			else {
 				sTrace += "\n" + name + "'";
+			}
+
+			if (req->req_src_line)
+			{
+				Firebird::string src_info;
+				src_info.printf(" line: %u, col: %u", req->req_src_line, req->req_src_column);
+				sTrace += src_info;
+			}
 		}
 	}
 
@@ -2432,6 +2443,15 @@ static jrd_nod* looper(thread_db* tdbb, jrd_req* request, jrd_nod* in_node)
 			node = node->nod_parent;
 			break;
 
+		case nod_src_info:
+			if (request->req_operation == jrd_req::req_evaluate) {
+				request->req_src_line = (USHORT) (IPTR) node->nod_arg[0];
+				request->req_src_column = (USHORT) (IPTR) node->nod_arg[1];
+				request->req_operation = jrd_req::req_return;
+			}
+			node = node->nod_parent;
+			break;
+
 		default:
 			BUGCHECK(168);		/* msg 168 looper: action not yet implemented */
 		}
@@ -3671,7 +3691,7 @@ static void validate(thread_db* tdbb, jrd_nod* list)
 				if (vector && id < vector->count() &&
 					(field = (*vector)[id]))
 				{
-					name = field->fld_name.c_str();
+					name = ERR_cstring(field->fld_name.c_str());
 				}
 			}
 

src/jrd/gds.cpp

@@ -356,7 +356,8 @@ static const UCHAR
 	dcl_cursor[] = { op_word, op_line, op_verb, 0},
 	cursor_stmt[] = { op_cursor_stmt, 0 },
 	strlength[] = { op_byte, op_line, op_verb, 0},
-	trim[] = { op_byte, op_byte, op_line, op_verb, 0};
+	trim[] = { op_byte, op_byte, op_line, op_verb, 0},
+	src_info[] = { op_word, op_word, op_line, 0};
 
 #include "../jrd/blp.h"
 

src/jrd/nod.h

@@ -190,3 +190,5 @@ NODE(nod_asn_list, asn_list, "")
 		  NODE(nod_equiv, equiv, " == ")
 
 		  NODE(nod_strlen, strlen, "STRLEN")
+
+		  NODE(nod_src_info, source_info, "")

src/jrd/par.cpp

@@ -2903,6 +2903,11 @@ static jrd_nod* parse(thread_db* tdbb, CompilerScratch* csb, USHORT expected,
 		break;
 #endif
 
+	case blr_src_info:
+		node->nod_arg[0] = (jrd_nod*) (IPTR) BLR_WORD;
+		node->nod_arg[1] = (jrd_nod*) (IPTR) BLR_WORD;
+		break;
+
 	default:
 		syntax_error(csb, elements[expected]);
 	}

src/jrd/req.h

@@ -247,6 +247,9 @@ public:
 	Savepoint*	req_proc_sav_point;	/* procedure savepoint list */
 	Firebird::TimeStamp	req_timestamp;		/* Start time of request */
 
+	USHORT	req_src_line;
+	USHORT	req_src_column;
+
 	enum req_ta {
 		req_trigger_insert = 1,
 		req_trigger_update = 2,

src/misc/blrtable.cpp

@@ -213,6 +213,7 @@ static const VERB verbs[] =
 	PAIR(nod_lowcase, blr_lowcase, 1, 1, VALUE, VALUE),
 	PAIR(nod_strlen, blr_strlen, e_strlen_length, e_strlen_count, VALUE, VALUE),
 	PAIR(nod_trim, blr_trim, e_trim_length, e_trim_count, VALUE, VALUE),
+	PAIR(nod_src_info, blr_src_info, 2, 0, STATEMENT, STATEMENT),
 	{0, NULL, NULL, NULL, NULL, NULL, NULL}
 };