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Fixed #4293 (FP: Variable is not simplified, causing a false positive).

This commit is contained in:
Edoardo Prezioso 2012-10-17 00:25:20 +02:00
parent c8c50f0b25
commit 61365ea0e5
2 changed files with 18 additions and 2 deletions
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11
lib/tokenize.cpp
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@ -5848,7 +5848,12 @@ bool Tokenizer::simplifyKnownVariables()
// constants..
{
std::map<unsigned int, std::string> constantValues;
bool goback = false;
for (Token *tok = list.front(); tok; tok = tok->next()) {
if (goback) {
tok = tok->previous();
goback = false;
}
if (tok->isName() && Token::Match(tok, "static| const| static| %type% const| %var% = %any% ;")) {
bool isconst = false;
for (const Token *tok2 = tok; tok2->str() != "="; tok2 = tok2->next()) {
@ -5878,10 +5883,12 @@ bool Tokenizer::simplifyKnownVariables()
constantValues[vartok->varId()] = valuetok->str();
// remove statement
while (tok1->str() != ";")
tok1->deleteThis();
while (tok1->next()->str() != ";")
tok1->deleteNext();
tok1->deleteNext();
tok1->deleteThis();
tok = tok1;
goback = true;
}
}

9
test/testtokenize.cpp
View File

@ -307,6 +307,7 @@ private:
TEST_CASE(simplify_constants);
TEST_CASE(simplify_constants2);
TEST_CASE(simplify_constants3);
TEST_CASE(simplify_constants4);
TEST_CASE(simplify_null);
TEST_CASE(simplifyMulAndParens); // Ticket #2784 + #3184
@ -4791,6 +4792,14 @@ private:
ASSERT_EQUALS(expected, tokenizeAndStringify(code,true));
}
void simplify_constants4() {
const char code[] = "static const int bSize = 4;\n"
"static const int aSize = 50;\n"
"const int x = bSize;\n"
"const int y = aSize;\n";
ASSERT_EQUALS("const int x = 4 ;\nconst int y = 50 ;", tokenizeAndStringify(code,true));
}
void simplify_null() {
{
const char code[] =