3c14b2339d
Also applies to -Wnonnull, -Wtype-safety, and -Wnon-pod-varargs. All of these can be better checked at instantiation time. This change does not actually affect regular CallExpr function calls, since the checks there only happen after overload resolution. However, it will affect Objective-C method calls. <rdar://problem/12373934> llvm-svn: 164984
82 lines
1.8 KiB
Plaintext
82 lines
1.8 KiB
Plaintext
// RUN: %clang_cc1 -fsyntax-only -verify -Wformat-nonliteral -pedantic %s
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#include <stdarg.h>
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extern "C" {
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extern int scanf(const char *restrict, ...);
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extern int printf(const char *restrict, ...);
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extern int vprintf(const char *restrict, va_list);
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}
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@class NSString;
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@interface Format
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+ (void)print:(NSString *)format, ... __attribute__((format(NSString, 1, 2)));
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@end
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namespace Templates {
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template<typename T>
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void my_uninstantiated_print(const T &arg) {
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[Format print:@"%d", arg];
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}
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template<typename T>
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void my_print(const T &arg) {
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[Format print:@"%d", arg]; // expected-warning {{format specifies type 'int' but the argument has type 'const char *'}}
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}
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void use_my_print() {
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my_print("abc"); // expected-note {{requested here}}
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}
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template<typename T>
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class UninstantiatedPrinter {
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public:
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static void print(const T &arg) {
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[Format print:@"%d", arg]; // no-warning
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}
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};
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template<typename T>
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class Printer {
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public:
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void print(const T &arg) {
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[Format print:@"%d", arg]; // expected-warning {{format specifies type 'int' but the argument has type 'const char *'}}
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}
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};
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void use_class(Printer<const char *> &p) {
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p.print("abc"); // expected-note {{requested here}}
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}
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template<typename T>
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class UninstantiatedWrapper {
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public:
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class Printer {
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public:
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void print(const T &arg) {
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[Format print:@"%d", arg]; // no-warning
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}
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};
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};
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template<typename T>
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class Wrapper {
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public:
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class Printer {
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public:
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void print(const T &arg) {
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[Format print:@"%d", arg]; // expected-warning {{format specifies type 'int' but the argument has type 'const char *'}}
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}
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};
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};
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void use_class(Wrapper<const char *>::Printer &p) {
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p.print("abc"); // expected-note {{requested here}}
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}
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}
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