frontend: Let the analyzer report details about errors.

[sysdb.git] / src / include / frontend / parser.h

diff --git a/src/include/frontend/parser.h b/src/include/frontend/parser.h
index c5fb4ab1207f399d5429923faa3c8181a39b66d2..b451ed5b6e88504980c008a42d132d871d50838c 100644 (file)
--- a/src/include/frontend/parser.h
+++ b/src/include/frontend/parser.h
@@ -29,7 +29,9 @@
 #define SDB_FRONTEND_PARSER_H 1
 
 #include "core/store.h"
+#include "frontend/connection.h"
 #include "utils/llist.h"
+#include "utils/strbuf.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -38,7 +40,8 @@ extern "C" {
 /* parser modes */
 enum {
        SDB_PARSE_DEFAULT = 0,
-       SDB_PARSE_COND,
+       SDB_PARSE_COND    = 1 << 1,
+       SDB_PARSE_EXPR    = 1 << 2,
 };
 
 /* YY_EXTRA data */
@@ -48,6 +51,9 @@ typedef struct {
 
        /* parser mode */
        int mode;
+
+       /* buffer for parser error messages */
+       sdb_strbuf_t *errbuf;
 } sdb_fe_yyextra_t;
 
 /* see yyscan_t */
@@ -63,7 +69,22 @@ int
 sdb_fe_yyparse(sdb_fe_yyscan_t scanner);
 
 sdb_store_matcher_t *
-sdb_fe_parse_matcher(const char *cond, int len);
+sdb_fe_parse_matcher(const char *cond, int len, sdb_strbuf_t *errbuf);
+
+sdb_store_expr_t *
+sdb_fe_parse_expr(const char *expr, int len, sdb_strbuf_t *errbuf);
+
+/*
+ * sdb_fe_analyze:
+ * Analyze a parsed node, checking for semantical errors. Error messages will
+ * be written to the string buffer, if provided.
+ *
+ * Returns:
+ *  - 0 if the node is semantically correct
+ *  - a negative value else
+ */
+int
+sdb_fe_analyze(sdb_conn_node_t *node, sdb_strbuf_t *errbuf);
 
 #ifdef __cplusplus
 } /* extern "C" */