tests/cases/compiler/optionalParamArgsTest.ts(35,47): error TS1016: A required parameter cannot follow an optional parameter.
tests/cases/compiler/optionalParamArgsTest.ts(31,12): error TS2393: Duplicate function implementation.
tests/cases/compiler/optionalParamArgsTest.ts(35,12): error TS2393: Duplicate function implementation.
tests/cases/compiler/optionalParamArgsTest.ts(99,1): error TS2346: Supplied parameters do not match any signature of call target.
tests/cases/compiler/optionalParamArgsTest.ts(100,1): error TS2346: Supplied parameters do not match any signature of call target.
tests/cases/compiler/optionalParamArgsTest.ts(101,1): error TS2346: Supplied parameters do not match any signature of call target.
tests/cases/compiler/optionalParamArgsTest.ts(102,1): error TS2346: Supplied parameters do not match any signature of call target.
tests/cases/compiler/optionalParamArgsTest.ts(103,1): error TS2346: Supplied parameters do not match any signature of call target.
tests/cases/compiler/optionalParamArgsTest.ts(104,1): error TS2346: Supplied parameters do not match any signature of call target.
tests/cases/compiler/optionalParamArgsTest.ts(105,1): error TS2346: Supplied parameters do not match any signature of call target.
tests/cases/compiler/optionalParamArgsTest.ts(106,1): error TS2346: Supplied parameters do not match any signature of call target.
tests/cases/compiler/optionalParamArgsTest.ts(107,1): error TS2346: Supplied parameters do not match any signature of call target.
tests/cases/compiler/optionalParamArgsTest.ts(108,1): error TS2346: Supplied parameters do not match any signature of call target.
tests/cases/compiler/optionalParamArgsTest.ts(109,1): error TS2346: Supplied parameters do not match any signature of call target.
tests/cases/compiler/optionalParamArgsTest.ts(110,1): error TS2346: Supplied parameters do not match any signature of call target.
tests/cases/compiler/optionalParamArgsTest.ts(111,1): error TS2346: Supplied parameters do not match any signature of call target.
tests/cases/compiler/optionalParamArgsTest.ts(112,1): error TS2346: Supplied parameters do not match any signature of call target.
tests/cases/compiler/optionalParamArgsTest.ts(113,1): error TS2346: Supplied parameters do not match any signature of call target.
tests/cases/compiler/optionalParamArgsTest.ts(114,1): error TS2346: Supplied parameters do not match any signature of call target.
tests/cases/compiler/optionalParamArgsTest.ts(115,1): error TS2346: Supplied parameters do not match any signature of call target.
tests/cases/compiler/optionalParamArgsTest.ts(116,1): error TS2346: Supplied parameters do not match any signature of call target.
tests/cases/compiler/optionalParamArgsTest.ts(117,1): error TS2346: Supplied parameters do not match any signature of call target.
tests/cases/compiler/optionalParamArgsTest.ts(118,1): error TS2346: Supplied parameters do not match any signature of call target.


==== tests/cases/compiler/optionalParamArgsTest.ts (23 errors) ====
    // Optional parameter and default argument tests
    
    // Key:
    // Cx - "Class x"
    // My - "Method x"
    // Az - "Argument z"
    // E.g., C1M1A1 = "Class 1, Method 1, Argument 1"
    
    interface I1 {
        C1M1():number;
        C1M2(C1M2A1:number):number;
        C1M3(C1M3A1?:number,C1M3A2?:number):number;
        C1M4(C1M4A1:number,C1M4A2?:number):number;
    }
    
    // test basic configurations
    class C1 {
        constructor(v: number = 1, p: number = 0) { }
        public n:number = 0;
    
        public C1M1() { return 0; } // returning C1M1A1 will result in "Unresolved symbol C1M1A1"
    
        public C1M2(C1M2A1:number) { return C1M2A1; } // will return C1M1A2 without complaint
    
        // C1M3 contains all optional parameters
        public C1M3(C1M3A1:number=0,C1M3A2:number=C1M3A1) {return C1M3A1 + C1M3A2; }
    
        // C1M4 contains a mix of optional and non-optional parameters
        public C1M4(C1M4A1:number,C1M4A2?:number) { return C1M4A1 + C1M4A2; }
    
        public C1M5(C1M5A1:number,C1M5A2:number=0,C1M5A3?:number) { return C1M5A1 + C1M5A2; }
               ~~~~
!!! error TS2393: Duplicate function implementation.
    
        // Negative test
        // "Optional parameters may only be followed by other optional parameters"
        public C1M5(C1M5A1:number,C1M5A2:number=0,C1M5A3:number) { return C1M5A1 + C1M5A2; }
                                                  ~~~~~~
!!! error TS1016: A required parameter cannot follow an optional parameter.
               ~~~~
!!! error TS2393: Duplicate function implementation.
    }
    
    class C2 extends C1 {
        constructor(v2: number = 6) {
            super(v2);
        }
    }
    
    
    function F1() { return 0; } 
    function F2(F2A1:number) { return F2A1; } 
    function F3(F3A1=0,F3A2=F3A1) {return F3A1 + F3A2; }
    function F4(F4A1:number,F4A2?:number) { return F4A1 + F4A2; }
    
    var L1 = function() {return 0;}
    var L2 = function (L2A1:number) { return L2A1; } 
    var L3 = function (L3A1=0,L3A2=L3A1) {return L3A1 + L3A2; }
    var L4 = function (L4A1:number,L4A2?:number) { return L4A1 + L4A2; }
    
    var c1o1:C1 = new C1(5);
    var i1o1:I1 = new C1(5);
    // Valid
    c1o1.C1M1();
    var f1v1=F1();
    var l1v1=L1();
    
    // Valid
    c1o1.C1M2(1);
    i1o1.C1M2(1);
    var f2v1=F2(1);
    var l2v1=L2(1);
    
    // Valid
    c1o1.C1M3(1,2);
    i1o1.C1M3(1,2);
    var f3v1=F3(1,2);
    var l3v1=L3(1,2);
    
    // Valid
    c1o1.C1M4(1,2);
    i1o1.C1M4(1,2);
    var f4v1=F4(1,2);
    var l4v1=L4(1,2);
    
    // Valid
    c1o1.C1M3(1);
    i1o1.C1M3(1);
    var f3v2=F3(1);
    var l3v2=L3(1);
    
    // Valid 
    c1o1.C1M3();
    i1o1.C1M3();
    var f3v3=F3();
    var l3v3=L3();
    
    // Valid
    c1o1.C1M4(1);
    i1o1.C1M4(1);
    var f4v2=F4(1);
    var l4v2=L4(1);
    
    // Negative tests - we expect these cases to fail
    c1o1.C1M1(1);
    ~~~~~~~~~~~~
!!! error TS2346: Supplied parameters do not match any signature of call target.
    i1o1.C1M1(1);
    ~~~~~~~~~~~~
!!! error TS2346: Supplied parameters do not match any signature of call target.
    F1(1);
    ~~~~~
!!! error TS2346: Supplied parameters do not match any signature of call target.
    L1(1);
    ~~~~~
!!! error TS2346: Supplied parameters do not match any signature of call target.
    c1o1.C1M2();
    ~~~~~~~~~~~
!!! error TS2346: Supplied parameters do not match any signature of call target.
    i1o1.C1M2();
    ~~~~~~~~~~~
!!! error TS2346: Supplied parameters do not match any signature of call target.
    F2();
    ~~~~
!!! error TS2346: Supplied parameters do not match any signature of call target.
    L2();
    ~~~~
!!! error TS2346: Supplied parameters do not match any signature of call target.
    c1o1.C1M2(1,2);
    ~~~~~~~~~~~~~~
!!! error TS2346: Supplied parameters do not match any signature of call target.
    i1o1.C1M2(1,2);
    ~~~~~~~~~~~~~~
!!! error TS2346: Supplied parameters do not match any signature of call target.
    F2(1,2);
    ~~~~~~~
!!! error TS2346: Supplied parameters do not match any signature of call target.
    L2(1,2);
    ~~~~~~~
!!! error TS2346: Supplied parameters do not match any signature of call target.
    c1o1.C1M3(1,2,3);
    ~~~~~~~~~~~~~~~~
!!! error TS2346: Supplied parameters do not match any signature of call target.
    i1o1.C1M3(1,2,3);
    ~~~~~~~~~~~~~~~~
!!! error TS2346: Supplied parameters do not match any signature of call target.
    F3(1,2,3);
    ~~~~~~~~~
!!! error TS2346: Supplied parameters do not match any signature of call target.
    L3(1,2,3);
    ~~~~~~~~~
!!! error TS2346: Supplied parameters do not match any signature of call target.
    c1o1.C1M4();
    ~~~~~~~~~~~
!!! error TS2346: Supplied parameters do not match any signature of call target.
    i1o1.C1M4();
    ~~~~~~~~~~~
!!! error TS2346: Supplied parameters do not match any signature of call target.
    F4();
    ~~~~
!!! error TS2346: Supplied parameters do not match any signature of call target.
    L4();
    ~~~~
!!! error TS2346: Supplied parameters do not match any signature of call target.
    
    function fnOpt1(id: number, children: number[] = [], expectedPath: number[] = [], isRoot?: boolean): void {}
    function fnOpt2(id: number, children?: number[], expectedPath?: number[], isRoot?: boolean): void {}
    fnOpt1(1, [2, 3], [1], true);
    fnOpt2(1, [2, 3], [1], true);