gdb

PR python/11915:
	* python/py-type.c (typy_array): New function.
	(type_object_methods): Add "array".
gdb/doc
	PR python/11915:
	* gdb.texinfo (Types In Python): Document array method.
gdb/testsuite
	PR python/11915:
	* gdb.python/py-type.exp (test_fields): Add tests for array.

gdb/ChangeLog

@@ -1,3 +1,9 @@
+2010-08-23  Tom Tromey  <tromey@redhat.com>
+
+	PR python/11915:
+	* python/py-type.c (typy_array): New function.
+	(type_object_methods): Add "array".
+
 2010-08-20  Pedro Alves  <pedro@codesourcery.com>
 
 	* python/python.c: Include "serial.h".

gdb/doc/ChangeLog

@@ -1,3 +1,8 @@
+2010-08-23  Tom Tromey  <tromey@redhat.com>
+
+	PR python/11915:
+	* gdb.texinfo (Types In Python): Document array method.
+
 2010-08-18  Thiago Jung Bauermann  <bauerman@br.ibm.com>
 
 	* gdb.texinfo (PowerPC Embedded): Mention support for the DVC register.

gdb/doc/gdb.texinfo

@@ -20938,6 +20938,15 @@ but it can be @code{None} in some situations.
 @end table
 @end defmethod
 
+@defmethod Type array @var{n1} @r{[}@var{n2}@r{]}
+Return a new @code{gdb.Type} object which represents an array of this
+type.  If one argument is given, it is the inclusive upper bound of
+the array; in this case the lower bound is zero.  If two arguments are
+given, the first argument is the lower bound of the array, and the
+second argument is the upper bound of the array.  An array's length
+must not be negative, but the bounds can be.
+@end defmethod
+
 @defmethod Type const
 Return a new @code{gdb.Type} object which represents a
 @code{const}-qualified variant of this type.

gdb/python/py-type.c

@@ -262,6 +262,54 @@ typy_strip_typedefs (PyObject *self, PyObject *args)
   return type_to_type_object (check_typedef (type));
 }
 
+/* Return an array type.  */
+
+static PyObject *
+typy_array (PyObject *self, PyObject *args)
+{
+  int n1, n2;
+  PyObject *n2_obj = NULL;
+  struct type *array = NULL;
+  struct type *type = ((type_object *) self)->type;
+  volatile struct gdb_exception except;
+
+  if (! PyArg_ParseTuple (args, "i|O", &n1, &n2_obj))
+    return NULL;
+
+  if (n2_obj)
+    {
+      if (!PyInt_Check (n2_obj))
+	{
+	  PyErr_SetString (PyExc_RuntimeError,
+			   _("Array bound must be an integer"));
+	  return NULL;
+	}
+      n2 = (int) PyInt_AsLong (n2_obj);
+      if (PyErr_Occurred ())
+	return NULL;
+    }
+  else
+    {
+      n2 = n1;
+      n1 = 0;
+    }
+
+  if (n2 < n1)
+    {
+      PyErr_SetString (PyExc_ValueError,
+		       _("Array length must not be negative"));
+      return NULL;
+    }
+
+  TRY_CATCH (except, RETURN_MASK_ALL)
+    {
+      array = lookup_array_range_type (type, n1, n2);
+    }
+  GDB_PY_HANDLE_EXCEPTION (except);
+
+  return type_to_type_object (array);
+}
+
 /* Return a Type object which represents a pointer to SELF.  */
 static PyObject *
 typy_pointer (PyObject *self, PyObject *args)
@@ -836,6 +884,9 @@ static PyGetSetDef type_object_getset[] =
 
 static PyMethodDef type_object_methods[] =
 {
+  { "array", typy_array, METH_VARARGS,
+    "array (N) -> Type\n\
+Return a type which represents an array of N objects of this type." },
   { "const", typy_const, METH_NOARGS,
     "const () -> Type\n\
 Return a const variant of this type." },

gdb/testsuite/ChangeLog

@@ -1,3 +1,8 @@
+2010-08-23  Tom Tromey  <tromey@redhat.com>
+
+	PR python/11915:
+	* gdb.python/py-type.exp (test_fields): Add tests for array.
+
 2010-08-23  Keith Seitz  <keiths@redhat.com>
 
 	* gdb.dwarf2/dw2-double-set-die-type.S: DIE 0x51f does not

gdb/testsuite/gdb.python/py-type.exp

@@ -97,6 +97,11 @@ proc test_fields {lang} {
   gdb_test "python fields = ar.type.fields()"
   gdb_test "python print len(fields)" "1" "Check the number of fields"
   gdb_test "python print fields\[0\].type" "<range type>" "Check array field type"
+
+  gdb_test "python print ar\[0\].cast(ar\[0\].type.array(1))" \
+      ".1, 2." "cast to array with one argument"
+  gdb_test "python print ar\[0\].cast(ar\[0\].type.array(0, 1))" \
+      ".1, 2." "cast to array with two arguments"
 }
 
 proc test_base_class {} {