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Support rvalue references in the gdb python module (includes doc/)

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This patch adds the ability to inspect rvalue reference types and values using
the gdb python module. This is achieved by creating two wrappers for
valpy_reference_value(), using the ReferenceExplorer class to handle the
objects of rvalue reference types and placing necessary checks for a
TYPE_CODE_RVALUE_REF type code next to the checks for a TYPE_CODE_REF type
code.

gdb/ChangeLog

	PR gdb/14441
	* doc/python.texi (Types in Python): Add TYPE_CODE_RVALUE_REF to
	table of constants.
	* python/lib/gdb/command/explore.py: Support exploring values
	of rvalue reference types.
	* python/lib/gdb/types.py: Implement get_basic_type() for
	rvalue reference types.
	* python/py-type.c (pyty_codes) <TYPE_CODE_RVALUE_REF>: New
	constant.
	* python/py-value.c (valpy_getitem): Add an rvalue reference
	check.
	(valpy_reference_value): Add new parameter "refcode".
	(valpy_lvalue_reference_value, valpy_rvalue_reference_value):
	New wrappers for valpy_reference_value().
	* python/py-xmethods.c (gdbpy_get_xmethod_result_type)
	(gdbpy_invoke_xmethod): Likewise.
This commit is contained in:
Artemiy Volkov 2017-03-20 13:47:52 -07:00 • committed by Keith Seitz
parent 4297a3f002
commit 3fcf899da1
7 changed files with 52 additions and 9 deletions
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2
gdb/python/lib/gdb/command/explore.py
View file

@ -132,6 +132,7 @@ class Explorer(object):
gdb.TYPE_CODE_UNION : CompoundExplorer,
gdb.TYPE_CODE_PTR : PointerExplorer,
gdb.TYPE_CODE_REF : ReferenceExplorer,
gdb.TYPE_CODE_RVALUE_REF : ReferenceExplorer,
gdb.TYPE_CODE_TYPEDEF : TypedefExplorer,
gdb.TYPE_CODE_ARRAY : ArrayExplorer
}
@ -318,7 +319,6 @@ class ReferenceExplorer(object):
Explorer.explore_type(name, target_type, is_child)
return False
class ArrayExplorer(object):
"""Internal class used to explore arrays."""

4
gdb/python/lib/gdb/types.py
View file

@ -31,8 +31,10 @@ def get_basic_type(type_):
"""
while (type_.code == gdb.TYPE_CODE_REF or
type_.code == gdb.TYPE_CODE_RVALUE_REF or
type_.code == gdb.TYPE_CODE_TYPEDEF):
if type_.code == gdb.TYPE_CODE_REF:
if (type_.code == gdb.TYPE_CODE_REF or
type_.code == gdb.TYPE_CODE_RVALUE_REF):
type_ = type_.target()
else:
type_ = type_.strip_typedefs()