Format strings: the correct conversion for 'char' is %c, not %d or %hhd.
We tried to account for 'uint8_t' by saying that /typedefs/ of 'char'
should be corrected as %hhd rather than %c, but the condition was wrong.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169397 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/PrintfFormatString.cpp b/lib/Analysis/PrintfFormatString.cpp
index 611815c..0820791 100644
--- a/lib/Analysis/PrintfFormatString.cpp
+++ b/lib/Analysis/PrintfFormatString.cpp
@@ -506,7 +506,7 @@
// Set conversion specifier and disable any flags which do not apply to it.
// Let typedefs to char fall through to int, as %c is silly for uint8_t.
- if (isa<TypedefType>(QT) && QT->isAnyCharacterType()) {
+ if (!isa<TypedefType>(QT) && QT->isCharType()) {
CS.setKind(ConversionSpecifier::cArg);
LM.setKind(LengthModifier::None);
Precision.setHowSpecified(OptionalAmount::NotSpecified);
diff --git a/test/FixIt/format.m b/test/FixIt/format.m
index c474701..4b13c2c 100644
--- a/test/FixIt/format.m
+++ b/test/FixIt/format.m
@@ -93,3 +93,57 @@
// CHECK: fix-it:"{{.*}}":{92:11-92:13}:"%zu"
}
+
+typedef unsigned char uint8_t;
+void test_char(char c, signed char s, unsigned char u, uint8_t n) {
+ NSLog(@"%s", c); // expected-warning{{format specifies type 'char *' but the argument has type 'char'}}
+ // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%c"
+
+ NSLog(@"%lf", c); // expected-warning{{format specifies type 'double' but the argument has type 'char'}}
+ // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:14}:"%c"
+
+ NSLog(@"%@", c); // expected-warning{{format specifies type 'id' but the argument has type 'char'}}
+ // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%c"
+
+ NSLog(@"%c", c); // no-warning
+ // CHECK-NOT: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%c"
+
+
+ NSLog(@"%s", s); // expected-warning{{format specifies type 'char *' but the argument has type 'signed char'}}
+ // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%c"
+
+ NSLog(@"%lf", s); // expected-warning{{format specifies type 'double' but the argument has type 'signed char'}}
+ // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:14}:"%c"
+
+ NSLog(@"%@", s); // expected-warning{{format specifies type 'id' but the argument has type 'signed char'}}
+ // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%c"
+
+ NSLog(@"%c", s); // no-warning
+ // CHECK-NOT: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%c"
+
+
+ NSLog(@"%s", u); // expected-warning{{format specifies type 'char *' but the argument has type 'unsigned char'}}
+ // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%c"
+
+ NSLog(@"%lf", u); // expected-warning{{format specifies type 'double' but the argument has type 'unsigned char'}}
+ // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:14}:"%c"
+
+ NSLog(@"%@", u); // expected-warning{{format specifies type 'id' but the argument has type 'unsigned char'}}
+ // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%c"
+
+ NSLog(@"%c", u); // no-warning
+ // CHECK-NOT: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%c"
+
+
+ NSLog(@"%s", n); // expected-warning{{format specifies type 'char *' but the argument has type 'uint8_t' (aka 'unsigned char')}}
+ // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%hhu"
+
+ NSLog(@"%lf", n); // expected-warning{{format specifies type 'double' but the argument has type 'uint8_t' (aka 'unsigned char')}}
+ // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:14}:"%hhu"
+
+ NSLog(@"%@", n); // expected-warning{{format specifies type 'id' but the argument has type 'uint8_t' (aka 'unsigned char')}}
+ // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%hhu"
+
+ NSLog(@"%c", n); // no-warning
+ // CHECK-NOT: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%hhu"
+}
