gdb/

[deliverable/binutils-gdb.git] / gdb / varobj.h

diff --git a/gdb/varobj.h b/gdb/varobj.h
index 4a4dd751c1dc537601fd46db08e69f16e6b926f9..e32c6ef1f75d90a75b73a43ef12e7cb79b1170dd 100644 (file)
--- a/gdb/varobj.h
+++ b/gdb/varobj.h
@@ -168,6 +168,68 @@ struct varobj
   struct varobj_dynamic *dynamic;
 };
 
+/* Is the variable X one of our "fake" children?  */
+#define CPLUS_FAKE_CHILD(x) \
+((x) != NULL && (x)->type == NULL && (x)->value == NULL)
+
+/* The language specific vector */
+
+struct lang_varobj_ops
+{
+  /* The number of children of PARENT.  */
+  int (*number_of_children) (struct varobj * parent);
+
+  /* The name (expression) of a root varobj.  */
+  char *(*name_of_variable) (struct varobj * parent);
+
+  /* The name of the INDEX'th child of PARENT.  */
+  char *(*name_of_child) (struct varobj * parent, int index);
+
+  /* Returns the rooted expression of CHILD, which is a variable
+     obtain that has some parent.  */
+  char *(*path_expr_of_child) (struct varobj * child);
+
+  /* The ``struct value *'' of the INDEX'th child of PARENT.  */
+  struct value *(*value_of_child) (struct varobj * parent, int index);
+
+  /* The type of the INDEX'th child of PARENT.  */
+  struct type *(*type_of_child) (struct varobj * parent, int index);
+
+  /* The current value of VAR.  */
+  char *(*value_of_variable) (struct varobj * var,
+                             enum varobj_display_formats format);
+
+  /* Return non-zero if changes in value of VAR must be detected and
+     reported by -var-update.  Return zero if -var-update should never
+     report changes of such values.  This makes sense for structures
+     (since the changes in children values will be reported separately),
+     or for artifical objects (like 'public' pseudo-field in C++).
+
+     Return value of 0 means that gdb need not call value_fetch_lazy
+     for the value of this variable object.  */
+  int (*value_is_changeable_p) (struct varobj *var);
+
+  /* Return nonzero if the type of VAR has mutated.
+
+     VAR's value is still the varobj's previous value, while NEW_VALUE
+     is VAR's new value and NEW_TYPE is the var's new type.  NEW_VALUE
+     may be NULL indicating that there is no value available (the varobj
+     may be out of scope, of may be the child of a null pointer, for
+     instance).  NEW_TYPE, on the other hand, must never be NULL.
+
+     This function should also be able to assume that var's number of
+     children is set (not < 0).
+
+     Languages where types do not mutate can set this to NULL.  */
+  int (*value_has_mutated) (struct varobj *var, struct value *new_value,
+                           struct type *new_type);
+};
+
+const struct lang_varobj_ops c_varobj_ops;
+const struct lang_varobj_ops cplus_varobj_ops;
+const struct lang_varobj_ops java_varobj_ops;
+const struct lang_varobj_ops ada_varobj_ops;
+
 /* API functions */
 
 extern struct varobj *varobj_create (char *objname,
@@ -255,4 +317,22 @@ extern int varobj_has_more (struct varobj *var, int to);
 
 extern int varobj_pretty_printed_p (struct varobj *var);
 
+extern int varobj_default_value_is_changeable_p (struct varobj *var);
+extern int varobj_value_is_changeable_p (struct varobj *var);
+
+extern struct type *varobj_get_value_type (struct varobj *var);
+
+extern int varobj_is_anonymous_child (struct varobj *child);
+
+extern struct varobj *varobj_get_path_expr_parent (struct varobj *var);
+
+extern char *varobj_value_get_print_value (struct value *value,
+                                          enum varobj_display_formats format,
+                                          struct varobj *var);
+
+extern void varobj_formatted_print_options (struct value_print_options *opts,
+                                           enum varobj_display_formats format);
+
+extern void varobj_restrict_range (VEC (varobj_p) *children, int *from,
+                                  int *to);
 #endif /* VAROBJ_H */