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/* -*- 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 <rtl/strbuf.hxx>
#include <rtl/string.hxx>
#include <rtl/ustrbuf.hxx>
#include <rtl/ustring.hxx>
#pragma clang diagnostic ignored "-Wunknown-warning-option" // for Clang < 13
#pragma clang diagnostic ignored "-Wunused-but-set-parameter"
#pragma clang diagnostic ignored "-Wunused-but-set-variable"
// ---------------------------------------------------------------
// += tests
namespace test1
{
static const char XXX1[] = "xxx";
static constexpr char16_t XXX1u[] = u"xxx";
static const char XXX2[] = "xxx";
void f1(OUString s1, int i, OString o)
{
OUString s2 = s1;
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
s2 += "xxx";
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
s2 += "xxx";
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
s2 += s1;
s2 = s1 + "xxx";
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
s2 += s1;
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
s2 += OUString::number(i);
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
s2 += XXX1;
// expected-error-re@+2 {{rather use O[U]String::Concat than constructing 'rtl::OUStringLiteral<4>' from 'const char16_t{{ ?}}[4]' on LHS of + (where RHS is of type 'const char{{ ?}}[4]') [loplugin:stringadd]}}
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
s2 += OUStringLiteral(XXX1u) + XXX2;
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
s2 += OStringToOUString(o, RTL_TEXTENCODING_UTF8);
}
void f2(OString s1, int i, OUString u)
{
OString s2 = s1;
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
s2 += "xxx";
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
s2 += "xxx";
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
s2 += s1;
s2 = s1 + "xxx";
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
s2 += s1;
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
s2 += OString::number(i);
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
s2 += OUStringToOString(u, RTL_TEXTENCODING_ASCII_US);
}
void f3(OUString aStr, int nFirstContent)
{
OUString aFirstStr = aStr.copy(0, nFirstContent);
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
aFirstStr += "...";
}
OUString side_effect();
void f4(int i)
{
OUString s1;
OUString s2("xxx");
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
s2 += "xxx";
++i;
// any other kind of statement breaks the chain (at least for now)
s2 += "xxx";
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
s2 += side_effect();
s1 += "yyy";
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
s1 += "yyy";
}
}
namespace test2
{
void f(OUString s3)
{
s3 += "xxx";
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
s3 += "xxx";
}
void g(OString s3)
{
s3 += "xxx";
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
s3 += "xxx";
}
}
namespace test3
{
struct Bar
{
OUString m_field;
};
void f(Bar b1, Bar& b2, Bar* b3)
{
OUString s3 = "xxx";
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
s3 += b1.m_field;
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
s3 += b2.m_field;
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
s3 += b3->m_field;
}
OUString side_effect();
void f2(OUString s)
{
OUString sRet = "xxx";
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
sRet += side_effect();
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
sRet += "xxx";
sRet += side_effect();
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
sRet += "xxx";
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
sRet += "xxx";
sRet += s;
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
sRet += "xxx";
}
}
// no warning expected
namespace test4
{
OUString side_effect();
void f()
{
OUString sRet = "xxx";
#if OSL_DEBUG_LEVEL > 0
sRet += ";";
#endif
sRet += " ";
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
sRet += side_effect();
}
}
// no warning expected
namespace test5
{
OUString side_effect();
void f()
{
OUString sRet = side_effect();
sRet += side_effect();
}
}
namespace test6
{
void f(OUString sComma, OUString maExtension, int mnDocumentIconID)
{
OUString sValue;
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
sValue += sComma + sComma + maExtension + sComma;
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
sValue += OUString::number(mnDocumentIconID) + sComma;
}
struct Foo
{
OUString sFormula1;
};
void g(int x, const Foo& aValidation)
{
OUString sCondition;
switch (x)
{
case 1:
sCondition += "cell-content-is-in-list(";
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
sCondition += aValidation.sFormula1 + ")";
}
}
}
// ---------------------------------------------------------------
// detecting OUString temporary construction in +
namespace test9
{
OUString getByValue();
const OUString& getByRef();
void f1(OUString s, OUString t, int i, const char* pChar)
{
// no warning expected
t = t + "xxx";
// expected-error-re@+1 {{rather use O[U]String::Concat than constructing 'rtl::OUString' from 'const char{{ ?}}[4]' on RHS of + (where LHS is of type 'rtl::OUString') [loplugin:stringadd]}}
s = s + OUString("xxx");
// expected-error@+1 {{rather use O[U]String::Concat than constructing 'rtl::OUString' from 'const rtl::OUString' on RHS of + (where LHS is of type 'rtl::OUString') [loplugin:stringadd]}}
s = s + OUString(getByRef());
// no warning expected
OUString a;
a = a + getByValue();
// no warning expected
OUString b;
b = b + (i == 1 ? "aaa" : "bbb");
// no warning expected
OUString c;
c = c + OUString(pChar, strlen(pChar), RTL_TEXTENCODING_UTF8);
OUStringBuffer buf;
// expected-error@+1 {{chained append, rather use single append call and + operator [loplugin:stringadd]}}
buf.append(" ").append(b);
}
void f2(char ch)
{
OString s;
// expected-error-re@+1 {{rather use O[U]String::Concat than constructing 'rtl::OString' from 'const char{{ ?}}[4]' on RHS of + (where LHS is of type 'rtl::OString') [loplugin:stringadd]}}
s = s + OString("xxx");
// expected-error@+1 {{rather use O[U]String::Concat than constructing 'rtl::OString' from 'char' on RHS of + (where LHS is of type 'rtl::OString') [loplugin:stringadd]}}
s = s + OString(ch);
}
}
namespace test10
{
struct C
{
OString constStringFunction(int) const;
OString nonConstStringFunction();
int constIntFunction() const;
int nonConstIntFunction();
};
C getC();
void f1(C c)
{
OString s;
// expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:stringadd]}}
s += c.constStringFunction(c.constIntFunction());
s += c.constStringFunction(c.nonConstIntFunction());
s += c.nonConstStringFunction();
s += getC().constStringFunction(c.constIntFunction());
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
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