Add test coverage for new gcc.Location functionality

Author: davidmalcolm

tests/plugin/compound-locations/input.c

@@ -0,0 +1,38 @@
+/*
+   Copyright 2017 David Malcolm <[email protected]>
+   Copyright 2017 Red Hat, Inc.
+
+   This is free software: you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see
+   <http://www.gnu.org/licenses/>.
+*/
+
+/* { dg-do compile } */
+/* { dg-options "-fdiagnostics-show-caret" } */
+
+int test (int foo, int bar)
+{ return foo + bar; }
+/* { dg-message "14: compound location" "" { target *-*-* } .-1 } */
+/* { dg-begin-multiline-output "" }
+ { return foo + bar; }
+          ~~~~^~~~~
+   { dg-end-multiline-output "" } */
+
+
+/*
+  PEP-7
+Local variables:
+c-basic-offset: 4
+indent-tabs-mode: nil
+End:
+*/

tests/plugin/compound-locations/script.py

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+#   Copyright 2017 David Malcolm <[email protected]>
+#   Copyright 2017 Red Hat, Inc.
+#
+#   This is free software: you can redistribute it and/or modify it
+#   under the terms of the GNU General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful, but
+#   WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#   General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program.  If not, see
+#   <http://www.gnu.org/licenses/>.
+
+import sys
+
+import gcc
+
+# Verify that various aspects of gcc.Location work
+
+def on_pass_execution(p, fn):
+    if p.name == '*warn_function_return':
+        caret = fn.start.offset_column(13)
+        start = fn.start.offset_column(9)
+        finish = fn.start.offset_column(17)
+        compound = gcc.Location(caret, start, finish)
+        gcc.inform(compound, "compound location")
+        assert compound.caret == caret
+        assert compound.start == start
+        assert compound.finish == finish
+
+# Wire up our callback:
+gcc.register_callback(gcc.PLUGIN_PASS_EXECUTION,
+                      on_pass_execution)
+