/* Bison code properties structure and scanner.
- Copyright (C) 2006, 2007, 2009, 2010 Free Software Foundation, Inc.
+ Copyright (C) 2006-2007, 2009-2013 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
CODE_PROPS_SYMBOL_ACTION, CODE_PROPS_RULE_ACTION
} kind;
- /** \c NULL iff \c code_props::kind is \c CODE_PROPS_NONE. */
+ /**
+ * \c NULL iff \c code_props::kind is \c CODE_PROPS_NONE.
+ * Memory is allocated in an obstack freed elsewhere.
+ */
char const *code;
/** Undefined iff \c code_props::code is \c NULL. */
location location;
*/
bool is_value_used;
+ /**
+ * \c true iff this code is an action that is not to be deferred in
+ * a non-deterministic parser.
+ */
+ bool is_predicate;
+
+ /**
+ * Whether this is actually used (i.e., not completely masked by
+ * other code props). */
+ bool is_used;
+
/** \c NULL iff \c code_props::kind is not \c CODE_PROPS_RULE_ACTION. */
struct symbol_list *rule;
void code_props_none_init (code_props *self);
/** Equivalent to \c code_props_none_init. */
-#define CODE_PROPS_NONE_INIT \
- {CODE_PROPS_NONE, NULL, EMPTY_LOCATION_INIT, false, NULL, NULL}
+# define CODE_PROPS_NONE_INIT \
+ { \
+ /* .kind = */ CODE_PROPS_NONE, \
+ /* .code = */ NULL, \
+ /* .location = */ EMPTY_LOCATION_INIT, \
+ /* .is_value_used = */ false, \
+ /* .is_predicate = */ false, \
+ /* .is_used = */ false, \
+ /* .rule = */ NULL, \
+ /* .named_ref = */ NULL \
+ }
/** Initialized by \c CODE_PROPS_NONE_INIT with no further modification. */
-extern code_props const code_props_none;
+extern code_props code_props_none;
/**
* \pre
*/
void code_props_rule_action_init (code_props *self, char const *code,
location code_loc, struct symbol_list *rule,
- named_ref *name);
+ named_ref *name, bool is_predicate);
/**
* \pre