TestTokenRange() : TestFixture("TestTokenRange") {}

void run() OVERRIDE {

TEST_CASE(enumerationToEnd);

TEST_CASE(untilHelperToEnd);

TEST_CASE(untilHelperPartWay);

TEST_CASE(partialEnumeration);

TEST_CASE(scopeExample);

TEST_CASE(exampleAlgorithms);

}

std::string testTokenRange(ConstTokenRange range, const Token* start, const Token* end) const {

auto tokenToString = [](const Token* t) {

return t ? t->str() : "<null>";

};

int index = 0;

const Token* expected = start;

for (const Token* t : range) {

if (expected != t) {

std::ostringstream message;

message << "Failed to match token " << tokenToString(expected) << " at position " << index << ". Got " << tokenToString(t) << " instead";

return message.str();

}

index++;

expected = expected->next();

}

if (expected != end) {

std::ostringstream message;

message << "Failed to terminate on " << tokenToString(end) << ". Instead terminated on " << tokenToString(expected) << " at position " << index << ".";

return message.str();

}

return "";

}

void enumerationToEnd() const {

std::istringstream istr("void a(){} void main(){ if(true){a();} }");

TokenList tokenList(nullptr);

tokenList.createTokens(istr, "test.cpp");

ASSERT_EQUALS("", testTokenRange(ConstTokenRange{ tokenList.front(), nullptr }, tokenList.front(), nullptr));

}

void untilHelperToEnd() const {

std::istringstream istr("void a(){} void main(){ if(true){a();} }");

TokenList tokenList(nullptr);

tokenList.createTokens(istr, "test.cpp");

ASSERT_EQUALS("", testTokenRange(tokenList.front()->until(nullptr), tokenList.front(), nullptr));

}

void untilHelperPartWay() const {

std::istringstream istr("void a(){} void main(){ if(true){a();} }");

TokenList tokenList(nullptr);

tokenList.createTokens(istr, "test.cpp");

const Token* start = tokenList.front()->tokAt(4);

const Token* end = start->tokAt(8);

ASSERT_EQUALS("", testTokenRange(start->until(end), start, end));

}

void partialEnumeration() const {

std::istringstream istr("void a(){} void main(){ if(true){a();} }");

TokenList tokenList(nullptr);

tokenList.createTokens(istr, "test.cpp");

const Token* start = tokenList.front()->tokAt(4);

const Token* end = tokenList.front()->tokAt(10);

ASSERT_EQUALS("", testTokenRange(ConstTokenRange{ start, end }, start, end));

}

void scopeExample() const {

Settings settings;

Tokenizer tokenizer{ &settings, nullptr };

std::istringstream sample("void a(){} void main(){ if(true){a();} }");

tokenizer.tokenize(sample, "test.cpp");

const SymbolDatabase* sd = tokenizer.getSymbolDatabase();

const Scope& scope = *std::next(sd->scopeList.begin(), 3); //The scope of the if block

std::ostringstream contents;

for (const Token* t : ConstTokenRange{ scope.bodyStart->next(), scope.bodyEnd }) {

contents << t->str();

}

ASSERT_EQUALS("a();", contents.str());

}

void exampleAlgorithms() const {

std::istringstream istr("void a(){} void main(){ if(true){a();} }");

TokenList tokenList(nullptr);

tokenList.createTokens(istr, "test.cpp");

ConstTokenRange range{ tokenList.front(), nullptr };

ASSERT_EQUALS(true, std::all_of(range.begin(), range.end(), [](const Token*) {

return true;

}));

ASSERT_EQUALS(true, std::any_of(range.begin(), range.end(), [](const Token* t) {

return t->str() == "true";

}));

ASSERT_EQUALS("true", (*std::find_if(range.begin(), range.end(), [](const Token* t) {

return t->str() == "true";

}))->str());

ASSERT_EQUALS(3, std::count_if(range.begin(), range.end(), [](const Token* t) {

return t->str() == "{";

}));

}