30 lines
616 B
ObjectPascal
30 lines
616 B
ObjectPascal
type
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IEnr = System.Collections.IEnumerator;
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IEnb = System.Collections.IEnumerable;
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var a : integer;
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type My = class(IEnumerable<integer>)
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public
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function IEnb.GetEnumerator(): IEnr;
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begin
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a := 1;
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end;
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function System.Collections.Generic.IEnumerable<integer>.GetEnumerator(): IEnumerator<integer>;
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begin
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a := 2;
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end;
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end;
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begin
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var ien: IEnb := new My;
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ien.GetEnumerator;
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assert(a=1);
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var ien2: IEnumerable<integer> := new My;
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ien2.GetEnumerator;
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assert(a=2);
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a := 0;
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//var mc := new My;
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//mc.GetEnumerator();
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//assert(a=2);
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end. |