// DIAGNOSTICS: -UNUSED_EXPRESSION -UNUSED_PARAMETER -UNUSED_VARIABLE -UNUSED_VALUE -VARIABLE_WITH_REDUNDANT_INITIALIZER
// SKIP_TXT

/*
 * KOTLIN DIAGNOSTICS NOT LINKED SPEC TEST (NEGATIVE)
 *
 * SECTIONS: dfa
 * NUMBER: 37
 * DESCRIPTION: Raw data flow analysis test
 * HELPERS: classes, objects, typealiases, functions, enumClasses, interfaces, sealedClasses
 */

/*
 * TESTCASE NUMBER: 1
 * UNEXPECTED BEHAVIOUR
 * ISSUES: KT-7630
 */
fun case_1() {
    var x: Class? = Class()
    if (x != null) {
        <!DEBUG_INFO_EXPRESSION_TYPE("Class")!>x<!>
        x++
        <!DEBUG_INFO_EXPRESSION_TYPE("Class?")!>x<!>
        <!DEBUG_INFO_EXPRESSION_TYPE("Class?")!>x<!><!UNSAFE_CALL!>.<!>equals(10)
    }
}

/*
 * TESTCASE NUMBER: 2
 * UNEXPECTED BEHAVIOUR
 * ISSUES: KT-7630
 */
fun case_2() {
    var x: Class?
    x = Class()
    <!DEBUG_INFO_EXPRESSION_TYPE("Class")!>x<!>
    x--
    <!DEBUG_INFO_EXPRESSION_TYPE("Class?")!>x<!>
    <!DEBUG_INFO_EXPRESSION_TYPE("Class?")!>x<!><!UNSAFE_CALL!>.<!>equals(10)
}

/*
 * TESTCASE NUMBER: 3
 * UNEXPECTED BEHAVIOUR
 * ISSUES: KT-7630
 */
fun case_3() {
    var x: Class? = Class()
    x!!
    <!DEBUG_INFO_EXPRESSION_TYPE("Class")!>x<!>
    --x
    <!DEBUG_INFO_EXPRESSION_TYPE("Class?")!>x<!>
    <!DEBUG_INFO_EXPRESSION_TYPE("Class?")!>x<!><!UNSAFE_CALL!>.<!>equals(10)
}

/*
 * TESTCASE NUMBER: 4
 * UNEXPECTED BEHAVIOUR
 * ISSUES: KT-7630
 */
fun case_4() {
    var x: Class? = Class()
    x as Class
    <!DEBUG_INFO_EXPRESSION_TYPE("Class")!>x<!>
    ++x
    <!DEBUG_INFO_EXPRESSION_TYPE("Class?")!>x<!>
    <!DEBUG_INFO_EXPRESSION_TYPE("Class?")!>x<!><!UNSAFE_CALL!>.<!>equals(10)
}

// TESTCASE NUMBER: 5
fun case_5() {
    var x: Class? = Class()
    x as Class
    <!DEBUG_INFO_EXPRESSION_TYPE("Class")!>x<!>
    x = x + x
    <!DEBUG_INFO_EXPRESSION_TYPE("Class?")!>x<!>
    <!DEBUG_INFO_EXPRESSION_TYPE("Class?")!>x<!><!UNSAFE_CALL!>.<!>equals(10)
}

// TESTCASE NUMBER: 6
fun case_6() {
    var x: Class? = Class()
    if (x is Class) {
        <!DEBUG_INFO_EXPRESSION_TYPE("Class")!>x<!>
        x = x - x
        <!DEBUG_INFO_EXPRESSION_TYPE("Class?")!>x<!>
        <!DEBUG_INFO_EXPRESSION_TYPE("Class?")!>x<!><!UNSAFE_CALL!>.<!>equals(10)
    }
}

/*
 * TESTCASE NUMBER: 7
 * UNEXPECTED BEHAVIOUR
 * ISSUES: KT-7630
 */
fun case_7() {
    var x: Class?
    x = Class()
    <!DEBUG_INFO_EXPRESSION_TYPE("Class")!>x<!>
    x += x
    <!DEBUG_INFO_EXPRESSION_TYPE("Class?")!>x<!>
    <!DEBUG_INFO_EXPRESSION_TYPE("Class?")!>x<!><!UNSAFE_CALL!>.<!>equals(10)
}

/*
 * TESTCASE NUMBER: 8
 * UNEXPECTED BEHAVIOUR
 * ISSUES: KT-7630
 */
fun case_8() {
    var x: Class? = Class()
    x!!
    <!DEBUG_INFO_EXPRESSION_TYPE("Class")!>x<!>
    x -= x
    <!DEBUG_INFO_EXPRESSION_TYPE("Class?")!>x<!>
    <!DEBUG_INFO_EXPRESSION_TYPE("Class?")!>x<!><!UNSAFE_CALL!>.<!>equals(10)
}
