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found: if an overloaded operator& is present before a template definition,
the expression &T::foo is represented as a CXXOperatorCallExpr, not as a
UnaryOperator, so we didn't notice that it's permitted to reference a non-static
data member of an unrelated class.
While investigating this, I discovered another problem in this area: we are
treating template default arguments as unevaluated contexts during substitution,
resulting in performing incorrect checks for uses of non-static data members in
C++11. That is not fixed by this patch (I'll look into this soon; it's related
to the failure to correctly instantiate constexpr function templates), but was
resulting in this bug not firing in C++11 mode (except with -Wc++98-compat).
Original message:
PR14124: When performing template instantiation of a qualified-id outside of a
class, diagnose if the qualified-id instantiates to a non-static class member.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166385 91177308-0d34-0410-b5e6-96231b3b80d8
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Richard has an unreduced testcase to work with.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166272 91177308-0d34-0410-b5e6-96231b3b80d8
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class, diagnose if the qualified-id instantiates to a non-static class member.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166268 91177308-0d34-0410-b5e6-96231b3b80d8
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of -Wparentheses called -Wparentheses-equality.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139180 91177308-0d34-0410-b5e6-96231b3b80d8
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type-dependent expressions. Fixes rdar://9027658.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128437 91177308-0d34-0410-b5e6-96231b3b80d8
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are in a macro. This is checked twice.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124714 91177308-0d34-0410-b5e6-96231b3b80d8
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macro.
Macros frequently contain extra '()' to make instantiation less error prone.
This warning was flagging a ton of times on postgresql because of its use of macros.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124695 91177308-0d34-0410-b5e6-96231b3b80d8
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Fariborz for the hint!
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124689 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124675 91177308-0d34-0410-b5e6-96231b3b80d8
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inside parentheses.
It's highly likely that the user intended an assignment used as condition.
Addresses rdar://8848646.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124668 91177308-0d34-0410-b5e6-96231b3b80d8
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a typo for !=). Fixes PR9001, from Hans Wennborg!
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123836 91177308-0d34-0410-b5e6-96231b3b80d8
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that adds parentheses from the main diagnostic down to a new
note. This way, when the fix-it represents a choice between two
options, each of the options is associted with a note. There is no
default option in such cases. For example:
/Users/dgregor/t.c:2:9: warning: & has lower precedence than ==; ==
will be
evaluated first [-Wparentheses]
if (x & y == 0) {
^~~~~~~~
/Users/dgregor/t.c:2:9: note: place parentheses around the &
expression to
evaluate it first
if (x & y == 0) {
^
( )
/Users/dgregor/t.c:2:9: note: place parentheses around the ==
expression to
silence this warning
if (x & y == 0) {
^
( )
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101249 91177308-0d34-0410-b5e6-96231b3b80d8
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suggestions follow recovery. Additionally, add a note to these
diagnostics which suggests a fix-it for changing the behavior to what
the user probably meant. Examples:
t.cpp:2:9: warning: & has lower precedence than ==; == will be evaluated first
[-Wparentheses]
if (i & j == k) {
^~~~~~~~
( )
t.cpp:2:9: note: place parentheses around the & expression to evaluate it first
if (i & j == k) {
^
( )
t.cpp:14:9: warning: using the result of an assignment as a condition
without
parentheses [-Wparentheses]
if (i = f()) {
~~^~~~~
( )
t.cpp:14:9: note: use '==' to turn this assignment into an equality
comparison
if (i = f()) {
^
==
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92975 91177308-0d34-0410-b5e6-96231b3b80d8
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- This is designed to make it obvious that %clang_cc1 is a "test variable"
which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it
can be useful to redefine what gets run as 'clang -cc1' (for example, to set
a default target).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91446 91177308-0d34-0410-b5e6-96231b3b80d8
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conditions. Add a fixit to insert the parentheses. Also fix a very minor
possible memory leak in 'for' conditions.
Fixes PR 4876 and rdar://problem/7289172
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83907 91177308-0d34-0410-b5e6-96231b3b80d8
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