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#6865 TemplateSimplifier::expandTemplate doesn't terminate on invalid code. Add some another syntax check on templates to avoid problems later on.

This commit is contained in:
Alexander Mai 2015-10-18 15:47:37 +02:00
parent 9bb2af1893
commit 21efa992e3
3 changed files with 31 additions and 21 deletions
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5
lib/templatesimplifier.cpp
View File

@ -471,6 +471,11 @@ std::list<Token *> TemplateSimplifier::getTemplateDeclarations(Token *tokens, bo
if (Token::simpleMatch(tok, "template <")) {
Token *parmEnd = tok->next()->findClosingBracket();
if (!tok->tokAt(2))
syntaxError(tok->next());
if (tok->tokAt(2)->str()=="typename" &&
(!tok->tokAt(3) || !Token::Match(tok->tokAt(3), "%name%|.")))
syntaxError(tok->next());
codeWithTemplates = true;
int indentlevel = 0;

44
test/testgarbage.cpp
View File

@ -192,6 +192,7 @@ private:
TEST_CASE(garbageCode141); // #7043
TEST_CASE(garbageCode142); // #7050
TEST_CASE(garbageCode143); // #6922
TEST_CASE(garbageCode144); // #6865
TEST_CASE(garbageValueFlow);
TEST_CASE(garbageSymbolDatabase);
@ -917,7 +918,8 @@ private:
}
void garbageCode119() { // #5598
checkCode("{ { void foo() { struct }; template <typename> struct S { Used x; void bar() } auto f = [this] { }; } };");
ASSERT_THROW(checkCode("{ { void foo() { struct }; template <typename> struct S { Used x; void bar() } auto f = [this] { }; } };"),
InternalError);
}
void garbageCode120() { // #4927
@ -1133,6 +1135,10 @@ private:
"}"), InternalError);
}
void garbageCode144() { // #6865
ASSERT_THROW(checkCode("template < typename > struct A { } ; template < typename > struct A < INVALID > : A < int[ > { }] ;"), InternalError);
}
void garbageValueFlow() {
// #6089
const char* code = "{} int foo(struct, x1, struct x2, x3, int, x5, x6, x7)\n"
@ -1217,24 +1223,24 @@ private:
checkCode(" > template < . > struct Y < T > { = } ;\n"); // #6108
checkCode( // #6117
"template <typename ...> struct something_like_tuple\n"
"{};\n"
"template <typename, typename> struct is_last {\n"
" static const bool value = false;\n"
"};\n"
"template <typename T, template <typename ...> class Tuple, typename ... Head>\n"
"struct is_last<T, Tuple<Head ..., T>>\n"
"{\n"
" static const bool value = true;\n"
"};\n"
"\n"
"#define SA(X) static_assert (X, #X)\n"
"\n"
"typedef something_like_tuple<char, int, float> something_like_tuple_t;\n"
"SA ((is_last<float, something_like_tuple_t>::value == false));\n"
"SA ((is_last<int, something_like_tuple_t>::value == false));\n"
);
ASSERT_THROW(checkCode( // #6117
"template <typename ...> struct something_like_tuple\n"
"{};\n"
"template <typename, typename> struct is_last {\n"
" static const bool value = false;\n"
"};\n"
"template <typename T, template <typename ...> class Tuple, typename ... Head>\n"
"struct is_last<T, Tuple<Head ..., T>>\n"
"{\n"
" static const bool value = true;\n"
"};\n"
"\n"
"#define SA(X) static_assert (X, #X)\n"
"\n"
"typedef something_like_tuple<char, int, float> something_like_tuple_t;\n"
"SA ((is_last<float, something_like_tuple_t>::value == false));\n"
"SA ((is_last<int, something_like_tuple_t>::value == false));\n"
), InternalError);
checkCode( // #6225
"template <typename...>\n"

3
test/testvarid.cpp
View File

@ -663,8 +663,7 @@ private:
}
void varid28() { // ticket #2630 (segmentation fault)
tokenize("template <typedef A>\n");
ASSERT_EQUALS("", errout.str());
ASSERT_THROW(tokenize("template <typedef A>\n"), InternalError);
}
void varid29() {