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functionVariableUsage: support for nested struct/union declaration.

This commit is contained in:
Leandro Penz 2009-01-14 00:45:44 +00:00
parent e664f255a4
commit 1a14cd527c
2 changed files with 27 additions and 4 deletions
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17
src/checkother.cpp
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@ -874,11 +874,20 @@ void CheckOther::functionVariableUsage()
else if (Token::Match(tok, "struct|union|class {") ||
Token::Match(tok, "struct|union|class %type% {"))
{
while (tok && tok->str() != "}")
int indentlevel0 = indentlevel;
while (tok->str() != "{")
tok = tok->next();
if (tok)
continue;
break;
do
{
if (tok->str() == "{")
indentlevel++;
else if (tok->str() == "}")
indentlevel--;
tok = tok->next();
}
while (tok && indentlevel > indentlevel0);
}
if (Token::Match(tok, "[;{}] bool|char|short|int|long|float|double %var% ;|="))

14
test/testunusedvar.cpp
View File

@ -68,6 +68,7 @@ private:
// Don't give false positives for variables in structs/unions
TEST_CASE(localvarStruct1);
TEST_CASE(localvarStruct2);
TEST_CASE(localvarStruct3);
TEST_CASE(localvarOp); // Usage with arithmetic operators
TEST_CASE(localvarInvert); // Usage with inverted variable
@ -259,6 +260,19 @@ private:
ASSERT_EQUALS(std::string(""), errout.str());
}
void localvarStruct3()
{
functionVariableUsage("void foo()\n"
"{\n"
" int a = 10;\n"
" union { struct { unsigned char x; }; unsigned char z; };\n"
" do {\n"
" func();\n"
" } while(a--);\n"
"}\n");
ASSERT_EQUALS(std::string(""), errout.str());
}
void localvarOp()