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Diffstat (limited to 'compilerplugins/clang/test/stringconstant.cxx')
| -rw-r--r-- | compilerplugins/clang/test/stringconstant.cxx | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/compilerplugins/clang/test/stringconstant.cxx b/compilerplugins/clang/test/stringconstant.cxx new file mode 100644 index 000000000..02f83b531 --- /dev/null +++ b/compilerplugins/clang/test/stringconstant.cxx @@ -0,0 +1,134 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + */ + +#include "sal/config.h" + +#include <cstring> + +#include "com/sun/star/uno/Reference.hxx" +#include "rtl/strbuf.hxx" +#include "rtl/ustrbuf.hxx" + +extern void foo(OUString const &); + +struct Foo { + Foo(OUString const &, int) {} + Foo(OUString const &) {} + void foo(OUString const &) const {} +}; + +struct Foo2 { + Foo2(OString const &, int) {} + Foo2(OString const &) {} + void foo(OString const &) const {} +}; + +OString ret1() { + return OString("foo"); // expected-error {{elide constructor call [loplugin:stringconstant]}} +} + +OString const ret2() { + return OString("foo"); // expected-error {{elide constructor call [loplugin:stringconstant]}} +} + +auto ret3() { + return OString("foo"); +} + +OUString ret4() { + return OUString("foo"); // expected-error {{elide constructor call [loplugin:stringconstant]}} +} + +OUString const ret5() { + return OUString("foo"); // expected-error {{elide constructor call [loplugin:stringconstant]}} +} + +auto ret6() { + return OUString("foo"); +} + +int main() { + char const s1[] = "foo"; + char const * const s2 = "foo"; + + OStringBuffer sb; + + sb.append(OString()); // expected-error {{in call of 'rtl::OStringBuffer::append', replace empty 'OString' constructor with empty string literal [loplugin:stringconstant]}} + sb.append(OString("foo")); // expected-error {{in call of 'rtl::OStringBuffer::append', elide explicit 'OString' constructor [loplugin:stringconstant]}} + sb.append(OString(s1)); // expected-error {{in call of 'rtl::OStringBuffer::append', elide explicit 'OString' constructor [loplugin:stringconstant]}} + sb.append(OString(s2)); // expected-error {{in call of 'rtl::OStringBuffer::append', elide explicit 'OString' constructor, and turn the non-array string constant into an array [loplugin:stringconstant]}} + sb.append(OString("foo", std::strlen("foo"))); // expected-error {{in call of 'rtl::OStringBuffer::append', elide explicit 'OString' constructor [loplugin:stringconstant]}} + sb.append(OString(s1, std::strlen(s1))); // expected-error {{in call of 'rtl::OStringBuffer::append', elide explicit 'OString' constructor [loplugin:stringconstant]}} + sb.append(OString(s2, std::strlen(s2))); // expected-error {{in call of 'rtl::OStringBuffer::append', elide explicit 'OString' constructor, and turn the non-array string constant into an array [loplugin:stringconstant]}} + sb.append("foo"); + sb.append(s1); + sb.append(s2); // expected-error {{in call of 'rtl::OStringBuffer::append' with non-array string constant argument, turn the non-array string constant into an array [loplugin:stringconstant]}} + sb.append("foo", std::strlen("foo")); // expected-error {{rewrite call of 'rtl::OStringBuffer::append' with string constant and matching length arguments as call of 'rtl::OStringBuffer::append' [loplugin:stringconstant]}} + sb.append(s1, 3/*std::strlen(s1)*/); // expected-error {{rewrite call of 'rtl::OStringBuffer::append' with string constant and matching length arguments as call of 'rtl::OStringBuffer::append' [loplugin:stringconstant]}} + sb.append(s2, 3/*std::strlen(s2)*/); // expected-error {{rewrite call of 'rtl::OStringBuffer::append' with string constant and matching length arguments as call of 'rtl::OStringBuffer::append', and turn the non-array string constant into an array [loplugin:stringconstant]}} + + sb.insert(0, OString()); // expected-error {{in call of 'rtl::OStringBuffer::insert', replace empty 'OString' constructor with empty string literal [loplugin:stringconstant]}} + sb.insert(0, OString("foo")); // expected-error {{in call of 'rtl::OStringBuffer::insert', elide explicit 'OString' constructor [loplugin:stringconstant]}} + sb.insert(0, OString(s1)); // expected-error {{in call of 'rtl::OStringBuffer::insert', elide explicit 'OString' constructor [loplugin:stringconstant]}} + sb.insert(0, OString(s2)); // expected-error {{in call of 'rtl::OStringBuffer::insert', elide explicit 'OString' constructor, and turn the non-array string constant into an array [loplugin:stringconstant]}} + sb.insert(0, OString("foo", std::strlen("foo"))); // expected-error {{in call of 'rtl::OStringBuffer::insert', elide explicit 'OString' constructor [loplugin:stringconstant]}} + sb.insert(0, OString(s1, std::strlen(s1))); // expected-error {{in call of 'rtl::OStringBuffer::insert', elide explicit 'OString' constructor [loplugin:stringconstant]}} + sb.insert(0, OString(s2, std::strlen(s2))); // expected-error {{in call of 'rtl::OStringBuffer::insert', elide explicit 'OString' constructor, and turn the non-array string constant into an array [loplugin:stringconstant]}} + sb.insert(0, "foo"); + sb.insert(0, s1); + sb.insert(0, s2); // expected-error {{in call of 'rtl::OStringBuffer::insert' with non-array string constant argument, turn the non-array string constant into an array [loplugin:stringconstant]}} + sb.insert(0, "foo", std::strlen("foo")); // expected-error {{rewrite call of 'rtl::OStringBuffer::insert' with string constant and matching length arguments as call of 'rtl::OStringBuffer::insert' [loplugin:stringconstant]}} + sb.insert(0, s1, 3/*std::strlen(s1)*/); // expected-error {{rewrite call of 'rtl::OStringBuffer::insert' with string constant and matching length arguments as call of 'rtl::OStringBuffer::insert' [loplugin:stringconstant]}} + sb.insert(0, s2, 3/*std::strlen(s2)*/); // expected-error {{rewrite call of 'rtl::OStringBuffer::insert' with string constant and matching length arguments as call of 'rtl::OStringBuffer::insert', and turn the non-array string constant into an array [loplugin:stringconstant]}} + + foo(OUString("xxx")); // expected-error {{in call of 'foo', replace 'OUString' constructed from a string literal directly with the string literal [loplugin:stringconstant}} + Foo aFoo(OUString("xxx"), 1); // expected-error {{in call of 'Foo::Foo', replace 'OUString' constructed from a string literal directly with the string literal}} + (void)aFoo; + Foo aFoo2(OUString("xxx")); // expected-error {{in call of 'Foo::Foo', replace 'OUString' constructed from a string literal directly with the string literal}} + aFoo2.foo(OUString("xxx")); // expected-error {{in call of 'Foo::foo', replace 'OUString' constructed from a string literal directly with the string literal}} + + Foo2 aFoo3(OString("xxx")); // expected-error {{in call of 'Foo2::Foo2', replace 'OUString' constructed from a string literal directly with the string literal}} + aFoo3.foo(OString("xxx")); // expected-error {{in call of 'Foo2::foo', replace 'OUString' constructed from a string literal directly with the string literal}} + + (void) OUString("xxx", 3, RTL_TEXTENCODING_ASCII_US); // expected-error {{simplify construction of 'OUString' with string constant argument [loplugin:stringconstant]}} + (void) OUString("xxx", 3, RTL_TEXTENCODING_ISO_8859_1); // expected-error {{suspicious 'rtl::OUString' constructor with text encoding 12 but plain ASCII content; use 'RTL_TEXTENCODING_ASCII_US' instead [loplugin:stringconstant]}} + (void) OUString("x\xA0x", 3, RTL_TEXTENCODING_ISO_8859_1); + + (void) OUString("xxx", 2, RTL_TEXTENCODING_ASCII_US); // expected-error {{suspicious 'rtl::OUString' constructor with literal of length 3 and non-matching length argument 2 [loplugin:stringconstant]}} + +#if !defined __cpp_char8_t + (void) OUString(u8"xxx", 3, RTL_TEXTENCODING_ASCII_US); // expected-error {{simplify construction of 'OUString' with string constant argument [loplugin:stringconstant]}} +#endif + + (void) OUString("\x80", 1, RTL_TEXTENCODING_UTF8); // expected-error {{suspicious 'rtl::OUString' constructor with text encoding 'RTL_TEXTENCODING_UTF8' but non-UTF-8 content [loplugin:stringconstant]}} + + (void) OUString("\xC2\x80", 2, RTL_TEXTENCODING_UTF8); // expected-error {{simplify construction of 'OUString' with UTF-8 content as OUString(u"\u0080") [loplugin:stringconstant]}} + + OUString().reverseCompareTo(OUString()); // expected-error {{in call of 'rtl::OUString::reverseCompareTo', replace default-constructed 'OUString' with an empty string literal [loplugin:stringconstant]}} + + OUStringBuffer ub; + ub.append(""); // expected-error {{call of 'rtl::OUStringBuffer::append' with suspicious empty string constant argument [loplugin:stringconstant]}} + ub.append("foo\0bar"); // expected-error {{call of 'rtl::OUStringBuffer::append' with string constant argument containing embedded NULLs [loplugin:stringconstant]}} + ub.append("foo\x80" "bar"); // expected-error {{call of 'rtl::OUStringBuffer::append' with string constant argument containing non-ASCII characters [loplugin:stringconstant]}} + char const sc1[] = ""; + ub.append(sc1); // expected-error {{call of 'rtl::OUStringBuffer::append' with suspicious empty string constant argument [loplugin:stringconstant]}} + char const sc2[] = "foo\0bar"; + ub.append(sc2); // expected-error {{call of 'rtl::OUStringBuffer::append' with string constant argument containing embedded NULLs [loplugin:stringconstant]}} + char const sc3[] = "foo\x80" "bar"; + ub.append(sc3); // expected-error {{call of 'rtl::OUStringBuffer::append' with string constant argument containing non-ASCII characters [loplugin:stringconstant]}} + char const sc4[] = {'f', 'o', 'o', 'b', 'a', 'r'}; + ub.append(sc4); // expected-error {{call of 'rtl::OUStringBuffer::append' with string constant argument lacking a terminating NULL [loplugin:stringconstant]}} + ub.append(static_cast<char const *>(sc1)); + ub.append(static_cast<char const *>(sc2)); // at runtime: append "foo" + ub.append(static_cast<char const *>(sc3)); // at runtime: assert + ub.append(static_cast<char const *>(sc4)); // at runtime: UB +} + + +/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */ |