1 files changed, 125 insertions, 0 deletions
diff --git a/solenv/gdb/libreoffice/util/printing.py b/solenv/gdb/libreoffice/util/printing.py
new file mode 100644
index 000000000..a31e353cf
--- /dev/null
+++ b/solenv/gdb/libreoffice/util/printing.py
@@ -0,0 +1,125 @@
+# -*- tab-width: 4; indent-tabs-mode: nil; py-indent-offset: 4 -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+try:
+    from collections.abc import Mapping
+except:
+    from collections import Mapping
+import gdb
+import re
+import six
+
+from libreoffice.util.compatibility import use_gdb_printing
+
+class SimplePrinter(object):
+
+    def __init__(self, name, function):
+        self.name = name
+        self.function = function
+        self.enabled = True
+
+    def invoke(self, val):
+        if not self.enabled:
+            return None
+        return self.function(self.name, val)
+
+class NameLookup(Mapping):
+
+    def __init__(self):
+        self.map = {}
+        self.name_regex = re.compile(r'^([\w:]+)(<.*>)?')
+
+    def add(self, name, printer):
+        self.map[name] = printer
+
+    def __len__(self):
+        return len(self.map)
+
+    def __getitem__(self, type):
+        typename = self._basic_type(type)
+        if typename and typename in self.map:
+            return self.map[typename]
+        return None
+
+    def __iter__(self):
+        return self.map
+
+    def _basic_type(self, type):
+        basic_type = self.basic_type(type)
+        if basic_type:
+            match = self.name_regex.match(basic_type)
+            if match:
+                return match.group(1)
+        return None
+
+    @staticmethod
+    def basic_type(type):
+        if type.code == gdb.TYPE_CODE_REF:
+            type = type.target()
+        type = type.unqualified().strip_typedefs()
+        return type.tag
+
+class FunctionLookup(Mapping):
+
+    def __init__(self):
+        self.map = {}
+
+    def add(self, test, printer):
+        self.map[test] = printer
+
+    def __len__(self):
+        return len(self.map)
+
+    def __getitem__(self, type):
+        for (test, printer) in six.iteritems(self.map):
+            if test(type):
+                return printer
+        return None
+
+    def __iter__(self):
+        return self.map
+
+class Printer(object):
+
+    def __init__(self, name):
+        self.name = name
+        self.subprinters = []
+        self.name_lookup = NameLookup()
+        self.func_lookup = FunctionLookup()
+        self.enabled = True
+
+    def add(self, name, function, lookup = None):
+        printer = SimplePrinter(name, function)
+        self.subprinters.append(printer)
+        if not lookup:
+            self.name_lookup.add(name, printer)
+        else:
+            self.func_lookup.add(lookup, printer)
+
+
+    def __call__(self, val):
+        printer = self.name_lookup[val.type]
+        if not printer:
+            printer = self.func_lookup[val.type]
+
+        if printer:
+            return printer.invoke(val)
+        return None
+
+def register_pretty_printer(printer, obj):
+    '''Registers printer with objfile'''
+
+    if use_gdb_printing:
+        gdb.printing.register_pretty_printer(obj, printer)
+    else:
+        if obj is None:
+            obj = gdb
+        obj.pretty_printers.append(printer)
+
+# vim:set shiftwidth=4 softtabstop=4 expandtab: