/*

 * Cppcheck - A tool for static C/C++ code analysis

 * Copyright (C) 2007-2017 Cppcheck team.

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program.  If not, see <http://www.gnu.org/licenses/>.

 */

#include "checkother.h"

#include "settings.h"

#include "testsuite.h"

#include "tokenize.h"

#include <simplecpp.h>

#include <map>

#include <vector>

class TestIncompleteStatement : public TestFixture {

public:

    TestIncompleteStatement() : TestFixture("TestIncompleteStatement") {

    }

private:

    Settings settings;

    void check(const char code[]) {

        // Clear the error buffer..

        errout.str("");

        // Raw tokens..

        std::vector<std::string> files;

        files.push_back("test.cpp");

        std::istringstream istr(code);

        const simplecpp::TokenList tokens1(istr, files, files[0]);

        // Preprocess..

        simplecpp::TokenList tokens2(files);

        std::map<std::string, simplecpp::TokenList*> filedata;

        simplecpp::preprocess(tokens2, tokens1, files, filedata, simplecpp::DUI());

        // Tokenize..

        Tokenizer tokenizer(&settings, this);

        tokenizer.createTokens(&tokens2);

        tokenizer.simplifyTokens1("");

        tokenizer.simplifyTokenList2();

        // Check for incomplete statements..

        CheckOther checkOther(&tokenizer, &settings, this);

        checkOther.checkIncompleteStatement();

    }

    void run() {

        settings.addEnabled("warning");

        TEST_CASE(test1);

        TEST_CASE(test2);

        TEST_CASE(test3);

        TEST_CASE(test4);

        TEST_CASE(test5);

        TEST_CASE(test6);

        TEST_CASE(test_numeric);

        TEST_CASE(void0); // #6327: No fp for statement "(void)0;"

        TEST_CASE(intarray);

        TEST_CASE(structarraynull);

        TEST_CASE(structarray);

        TEST_CASE(conditionalcall);     // ; 0==x ? X() : Y();

        TEST_CASE(structinit);          // #2462 : ABC abc{1,2,3};

        TEST_CASE(returnstruct);

        TEST_CASE(cast);                // #3009 : (struct Foo *)123.a = 1;

        TEST_CASE(increment);           // #3251 : FP for increment

        TEST_CASE(cpp11init);           // #5493 : int i{1};

        TEST_CASE(block);               // ({ do_something(); 0; })

        TEST_CASE(mapindex);

    }

    void test1() {

        check("void foo()\n"

              "{\n"

              "    const char def[] =\n"

              "    \"abc\";\n"

              "}");

        ASSERT_EQUALS("", errout.str());

    }

    void test2() {

        check("void foo()\n"

              "{\n"

              "    \"abc\";\n"

              "}");

        ASSERT_EQUALS("[test.cpp:3]: (warning) Redundant code: Found a statement that begins with string constant.\n", errout.str());

    }

    void test3() {

        check("void foo()\n"

              "{\n"

              "    const char *str[] = { \"abc\" };\n"

              "}");

        ASSERT_EQUALS("", errout.str());

    }

    void test4() {

        check("void foo()\n"

              "{\n"

              "const char *a =\n"

              "{\n"

              "\"hello \"\n"

              "\"more \"\n"

              "\"world\"\n"

              "};\n"

              "}");

        ASSERT_EQUALS("", errout.str());

    }

    void test5() {

        check("void foo()\n"

              "{\n"

              "    50;\n"

              "}");

        ASSERT_EQUALS("[test.cpp:3]: (warning) Redundant code: Found a statement that begins with numeric constant.\n", errout.str());

    }

    void test6() {

        // don't crash

        check("void f() {\n"

              "  1 == (two + three);\n"

              "  2 != (two + three);\n"

              "  (one + two) != (two + three);\n"

              "}");

    }

    void test_numeric() {

        check("struct P\n"

              "{\n"

              "double a;\n"

              "double b;\n"

              "};\n"

              "void f()\n"

              "{\n"

              "const P values[2] =\n"

              "{\n"

              "{ 346.1,114.1 }, { 347.1,111.1 }\n"

              "};\n"

              "}");

        ASSERT_EQUALS("", errout.str());

    }

    void void0() { // #6327

        check("void f() { (void*)0; }");

        ASSERT_EQUALS("", errout.str());

        check("#define X  0\n"

              "void f() { X; }");

        ASSERT_EQUALS("", errout.str());

    }

    void intarray() {

        check("int arr[] = { 100/2, 1*100 };");

        ASSERT_EQUALS("", errout.str());

    }

    void structarraynull() {

        check("struct st arr[] = {\n"

              "    { 100/2, 1*100 }\n"

              "    { 90, 70 }\n"

              "}");

        ASSERT_EQUALS("", errout.str());

    }

    void structarray() {

        check("struct st arr[] = {\n"

              "    { 100/2, 1*100 }\n"

              "    { 90, 70 }\n"

              "};");

        ASSERT_EQUALS("", errout.str());

    }

    void conditionalcall() {

        check("void f() {\n"

              "    0==x ? X() : Y();\n"

              "}");

        ASSERT_EQUALS("", errout.str());

    }

    void structinit() {

        // #2462 - C++11 struct initialization

        check("void f() {\n"

              "    ABC abc{1,2,3};\n"

              "}");

        ASSERT_EQUALS("", errout.str());

        // #6260 - C++11 array initialization

        check("void foo() {\n"

              "    static const char* a[][2] {\n"

              "        {\"b\", \"\"},\n"

              "    };\n"

              "}");

        ASSERT_EQUALS("", errout.str());

        // #2482 - false positive for empty struct

        check("struct A {};");

        ASSERT_EQUALS("", errout.str());

        // #4387 - C++11 initializer list

        check("A::A() : abc{0} {}");

        ASSERT_EQUALS("", errout.str());

        // #5042 - C++11 initializer list

        check("A::A() : abc::def<int>{0} {}");

        ASSERT_EQUALS("", errout.str());

        // #4503 - vector init

        check("void f() { vector<int> v{1}; }");

        ASSERT_EQUALS("", errout.str());

    }

    void returnstruct() {

        check("struct s foo() {\n"

              "    return (struct s){0,0};\n"

              "}");

        ASSERT_EQUALS("", errout.str());

        // #4754

        check("unordered_map<string, string>  foo() {\n"

              "    return {\n"

              "        {\"hi\", \"there\"},\n"

              "        {\"happy\", \"sad\"}\n"

              "    };\n"

              "}");

        ASSERT_EQUALS("", errout.str());

        check("struct s foo() {\n"

              "  return (struct s){0};\n"

              "}");

        ASSERT_EQUALS("", errout.str());

    }

    void cast() {

        check("void f() {\n"

              "    ((struct foo *)(0x1234))->xy = 1;\n"

              "}");

        ASSERT_EQUALS("", errout.str());

    }

    void increment() {

        check("void f() {\n"

              "    int x = 1;\n"

              "    x++, x++;\n"

              "}");

        ASSERT_EQUALS("", errout.str());

    }

    void cpp11init() {

        check("void f() {\n"

              "    int x{1};\n"

              "}");

        ASSERT_EQUALS("", errout.str());

    }

    void block() {

        check("void f() {\n"

              "    ({ do_something(); 0; });\n"

              "}");

        ASSERT_EQUALS("", errout.str());

        check("void f() {\n"

              "out:\n"

              "    ({ do_something(); 0; });\n"

              "}");

        ASSERT_EQUALS("", errout.str());

    }

    void mapindex() {

        check("void f() {\n"

              "  map[{\"1\",\"2\"}]=0;\n"

              "}");

        ASSERT_EQUALS("", errout.str());

    }

};

REGISTER_TEST(TestIncompleteStatement)