// Cppcheck - A tool for static C/C++ code analysis
// Copyright (C) 2007-2019 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 "clangastdump.h"
#include "settings.h"
#include "tokenize.h"
#include "testsuite.h"


class TestClangAstDump: public TestFixture {
public:
    TestClangAstDump()
        :TestFixture("TestClangAstDump") {
    }


private:
    void run() OVERRIDE {
        TEST_CASE(funcdecl1);
        TEST_CASE(funcdecl2);
        TEST_CASE(vardecl1);
    }

    std::string parse(const char clang[]) {
        Settings settings;
        Tokenizer tokenizer(&settings, this);
        std::istringstream istr(clang);
        clangastdump::parseClangAstDump(&tokenizer, istr);
        return tokenizer.tokens()->stringifyList(true, false, false, true, false);
    }


    void funcdecl1() {
        const char clang[] = "`-FunctionDecl 0x3122c30 <1.c:1:1, col:22> col:6 foo 'void (int, int)'\n"
                             "  |-ParmVarDecl 0x3122ae0 <col:10, col:14> col:14 x 'int'\n"
                             "  `-ParmVarDecl 0x3122b58 <col:17, col:21> col:21 y 'int'";
        ASSERT_EQUALS("void foo ( int x@1 , int y@2 ) ;", parse(clang));
    }

    void funcdecl2() {
        const char clang[] = "`-FunctionDecl 0x24b2c38 <1.c:1:1, line:4:1> line:1:5 foo 'int (int, int)'\n"
                             "  |-ParmVarDecl 0x24b2ae0 <col:9, col:13> col:13 used x 'int'\n"
                             "  |-ParmVarDecl 0x24b2b58 <col:16, col:20> col:20 used y 'int'\n"
                             "  `-CompoundStmt 0x24b2de8 <line:2:1, line:4:1>\n"
                             "    `-ReturnStmt 0x24b2dd0 <line:3:5, col:16>\n"
                             "      `-BinaryOperator 0x24b2da8 <col:12, col:16> 'int' '/'\n"
                             "        |-ImplicitCastExpr 0x24b2d78 <col:12> 'int' <LValueToRValue>\n"
                             "        | `-DeclRefExpr 0x24b2d28 <col:12> 'int' lvalue ParmVar 0x24b2ae0 'x' 'int'\n"
                             "        `-ImplicitCastExpr 0x24b2d90 <col:16> 'int' <LValueToRValue>\n"
                             "          `-DeclRefExpr 0x24b2d50 <col:16> 'int' lvalue ParmVar 0x24b2b58 'y' 'int'";
        ASSERT_EQUALS("int foo ( int x@1 , int y@2 ) {\n\n"
                      "return x@1 / y@2 ; }", parse(clang));
    }

    void vardecl1() {
        const char clang[] = "|-VarDecl 0x32b8aa0 <1.c:1:1, col:9> col:5 used a 'int' cinit\n"
                             "| `-IntegerLiteral 0x32b8b40 <col:9> 'int' 1\n"
                             "`-VarDecl 0x32b8b78 <line:2:1, col:9> col:5 b 'int' cinit\n"
                             "  `-ImplicitCastExpr 0x32b8c00 <col:9> 'int' <LValueToRValue>\n"
                             "    `-DeclRefExpr 0x32b8bd8 <col:9> 'int' lvalue Var 0x32b8aa0 'a' 'int'";

        ASSERT_EQUALS("int a@1 ; a@1 = 1 ;\n"
                      "int b@2 ; b@2 = a@1 ;",
                      parse(clang));
    }
};

REGISTER_TEST(TestClangAstDump)