PR c++/14819: Explicit class:: inside class scope does not work

https://sourceware.org/ml/gdb-patches/2013-11/msg00102.html

2 files changed, 265 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.cp/impl-this.cc b/gdb/testsuite/gdb.cp/impl-this.cc
new file mode 100644
index 0000000..6be0ddf
--- /dev/null
+++ b/gdb/testsuite/gdb.cp/impl-this.cc
@@ -0,0 +1,135 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 2013 Free Software Foundation, Inc.
+
+   This program 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/>.  */
+
+#ifdef DEBUG
+#include <stdio.h>
+#endif
+
+template <typename T>
+class A
+{
+public:
+  T i;
+  T z;
+  A () : i (1), z (10) {}
+};
+
+template <typename T>
+class B : public virtual A<T>
+{
+public:
+  T i;
+  T common;
+  B () : i (2), common (200) {}
+};
+
+typedef B<int> Bint;
+
+class C : public virtual A<int>
+{
+public:
+  int i;
+  int c;
+  int common;
+  C () : i (3), c (30), common (300) {}
+};
+
+class BB : public A<int>
+{
+public:
+  int i;
+  BB () : i (20) {}
+};
+
+class CC : public A<int>
+{
+public:
+  int i;
+  CC () : i (30) {}
+};
+
+class Ambig : public BB, public CC
+{
+public:
+  int i;
+  Ambig () : i (1000) {}
+};
+
+class D : public Bint, public C
+{
+public:
+  int i;
+  int x;
+  Ambig am;
+  D () : i (4), x (40) {}
+
+#ifdef DEBUG
+#define SUM(X)					\
+  do						\
+    {						\
+      sum += (X);				\
+      printf ("" #X " = %d\n", (X));		\
+    }						\
+  while (0)
+#else
+#define SUM(X) sum += (X)
+#endif
+
+int
+f (void)
+  {
+    int sum = 0;
+
+    SUM (i);
+    SUM (D::i);
+    SUM (D::B<int>::i);
+    SUM (B<int>::i);
+    SUM (D::C::i);
+    SUM (C::i);
+    SUM (D::B<int>::A<int>::i);
+    SUM (B<int>::A<int>::i);
+    SUM (A<int>::i);
+    SUM (D::C::A<int>::i);
+    SUM (C::A<int>::i);
+    SUM (D::x);
+    SUM (x);
+    SUM (D::C::c);
+    SUM (C::c);
+    SUM (c);
+    SUM (D::A<int>::i);
+    SUM (Bint::i);
+    //SUM (D::Bint::i);
+    //SUM (D::Bint::A<int>::i);
+    SUM (Bint::A<int>::i);
+    // ambiguous: SUM (common);
+    SUM (B<int>::common);
+    SUM (C::common);
+    SUM (am.i);
+    // ambiguous: SUM (am.A<int>::i);
+
+    return sum;
+  }
+};
+
+int
+main (void)
+{
+  Bint b;
+  D d;
+
+  return d.f () + b.i;
+}
diff --git a/gdb/testsuite/gdb.cp/impl-this.exp b/gdb/testsuite/gdb.cp/impl-this.exp
new file mode 100644
index 0000000..ce7c780
--- /dev/null
+++ b/gdb/testsuite/gdb.cp/impl-this.exp
@@ -0,0 +1,130 @@
+# Copyright 2013 Free Software Foundation, Inc.
+
+# This program 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/>.
+
+# This file is part of the gdb testsuite
+
+# Test expressions which assume an implicit "this" with a qualified
+# name.
+
+if {[skip_cplus_tests]} { continue }
+
+standard_testfile .cc
+
+if {[prepare_for_testing $testfile.exp $testfile $srcfile {debug c++}]} {
+    return -1
+}
+
+# First test expressions when there is no context.
+with_test_prefix "before run" {
+    gdb_test "print i" "No symbol \"i\" in current context."
+    gdb_test "print D::i" "Cannot reference non-static field \"i\""
+    gdb_test "print D::B<int>::i" "Cannot reference non-static field \"i\""
+    gdb_test "print B<int>::i" "Cannot reference non-static field \"i\""
+    gdb_test "print D::C::i" "Cannot reference non-static field \"i\""
+    gdb_test "print C::i" "Cannot reference non-static field \"i\""
+    gdb_test "print D::B<int>::A<int>::i" \
+	"Cannot reference non-static field \"i\""
+    gdb_test "print B<int>::A<int>::i" "Cannot reference non-static field \"i\""
+    gdb_test "print A<int>::i" "Cannot reference non-static field \"i\""
+    gdb_test "print D::C::A<int>::i" "Cannot reference non-static field \"i\""
+    gdb_test "print C::A<int>::i" "Cannot reference non-static field \"i\""
+    gdb_test "print D::x" "Cannot reference non-static field \"x\""
+    gdb_test "print x" "No symbol \"x\" in current context."
+    gdb_test "print D::C::c" "Cannot reference non-static field \"c\""
+    gdb_test "print C::c" "Cannot reference non-static field \"c\""
+    gdb_test "print c" "No symbol \"c\" in current context."
+    gdb_test "print D::A<int>::i" "Cannot reference non-static field \"i\""
+}
+
+# Run to D::f.
+if {![runto_main]} {
+    perror "couldn't run to main"
+    continue
+}
+
+gdb_breakpoint "D::f"
+gdb_continue_to_breakpoint "continue to D::f"
+
+# Now test valid expressions in the class hierarchy for D.
+with_test_prefix "at D::f (valid expressions)" {
+    gdb_test "print i" "= 4"
+    gdb_test "print D::i" "= 4"
+    gdb_test "print D::B<int>::i" "= 2"
+    gdb_test "print B<int>::i" "= 2"
+    gdb_test "print D::Bint::i" \
+	"No type \"Bint\" within class or namespace \"D\"."
+    gdb_test "print Bint::i" "= 2"
+    gdb_test "print D::C::i" "= 3"
+    gdb_test "print C::i" "= 3"
+    gdb_test "print D::B<int>::A<int>::i" "= 1"
+    gdb_test "print B<int>::A<int>::i" "= 1"
+    gdb_test "print D::Bint::A<int>::i" \
+	"No type \"Bint\" within class or namespace \"D\"."
+    gdb_test "print Bint::A<int>::i" "= 1"
+    gdb_test "print A<int>::i" "= 1"
+    gdb_test "print D::C::A<int>::i" "= 1"
+    gdb_test "print C::A<int>::i" "= 1"
+    gdb_test "print D::x" "= 40"
+    gdb_test "print x" "= 40"
+    gdb_test "print D::C::c" "= 30"
+    gdb_test "print C::c" "= 30"
+    gdb_test "print c" "= 30"
+    gdb_test "print D::A<int>::i" "= 1"
+}
+
+# Test some invalid expressions
+with_test_prefix "at D::f (invalid expressions)" {
+    gdb_test "print D::B<int>::c" "There is no field named c"
+    gdb_test "print D::B<int>::A<int>::c" "There is no field named c"
+    gdb_test "print D::Bint::c" \
+	"No type \"Bint\" within class or namespace \"D\"."
+
+    gdb_test "print D::Bint::A<int>::c" \
+	"No type \"Bint\" within class or namespace \"D\"."
+    gdb_test "print D::C::A<int>::c" "There is no field named c"
+    gdb_test "print B<int>::c" "There is no field named c"
+    gdb_test "print B<int>::A<int>::c" "There is no field named c"
+    gdb_test "print Bint::c" "There is no field named c"
+    gdb_test "print Bint::A<int>::c" "There is no field named c"
+    gdb_test "print C::A<int>::c" "There is no field named c"
+    gdb_test "print D::B<int>::x" "There is no field named x"
+    gdb_test "print D::B<int>::A<int>::x" "There is no field named x"
+    gdb_test "print D::Bint::x" \
+	"No type \"Bint\" within class or namespace \"D\"."
+    gdb_test "print D::Bint::A<int>::x" \
+	"No type \"Bint\" within class or namespace \"D\"."
+    gdb_test "print B<int>::x" "There is no field named x"
+    gdb_test "print B<int>::A<int>::x" "There is no field named x"
+    gdb_test "print Bint::x" "There is no field named x"
+    gdb_test "print Bint::A<int>::x" "There is no field named x"
+    gdb_test "print D::C::x" "There is no field named x"
+    gdb_test "print C::x" "There is no field named x"
+    gdb_test "print D::C::A<int>::x" "There is no field named x"
+    gdb_test "print C::A<int>::x" "There is no field named x"
+}
+
+# Test some ambiguous names
+with_test_prefix "at D::f (ambiguous names)" {
+    gdb_test "print B<int>::common" " = 200"
+    gdb_test "print Bint::common" " = 200"
+    gdb_test "print C::common" " = 300"
+    gdb_test "print am.i" " = 1000"
+    gdb_test "print am.A<int>::i" \
+	"base class 'A<int>' is ambiguous in type 'Ambig'"
+    gdb_test "print am.BB::A<int>::i" \
+	"base class 'A<int>' is ambiguous in type 'Ambig'"
+    gdb_test "print am.CC::A<int>::i" \
+	"base class 'A<int>' is ambiguous in type 'Ambig'"
+}