vbscript: Implement FormatDateTime().

dlls/vbscript/global.c

@@ -3015,10 +3015,32 @@ static HRESULT Global_FormatPercent(BuiltinDisp *This, VARIANT *args, unsigned a
     return return_bstr(res, str);
 }
 
-static HRESULT Global_FormatDateTime(BuiltinDisp *This, VARIANT *arg, unsigned args_cnt, VARIANT *res)
+static HRESULT Global_FormatDateTime(BuiltinDisp *This, VARIANT *args, unsigned args_cnt, VARIANT *res)
 {
-    FIXME("\n");
-    return E_NOTIMPL;
+    int format = 0;
+    HRESULT hres;
+    BSTR str;
+
+    TRACE("\n");
+
+    assert(1 <= args_cnt && args_cnt <= 2);
+
+    if (V_VT(args) == VT_NULL)
+        return MAKE_VBSERROR(VBSE_TYPE_MISMATCH);
+
+    if (args_cnt == 2)
+    {
+        if (V_VT(args+1) == VT_NULL) return MAKE_VBSERROR(VBSE_ILLEGAL_NULL_USE);
+        if (V_VT(args+1) != VT_ERROR)
+        {
+            if (FAILED(hres = to_int(args+1, &format))) return hres;
+        }
+    }
+
+    hres = VarFormatDateTime(args, format, 0, &str);
+    if (FAILED(hres)) return hres;
+
+    return return_bstr(res, str);
 }
 
 static HRESULT Global_WeekdayName(BuiltinDisp *This, VARIANT *args, unsigned args_cnt, VARIANT *res)

dlls/vbscript/tests/api.vbs

@@ -2411,4 +2411,29 @@ end sub
 call testFormatPercent()
 call testFormatPercentError()
 
+sub testFormatDateTimeError()
+    on error resume next
+    dim x
+    call Err.clear()
+    x = FormatDateTime(null)
+    call ok(Err.number = 13, "Err.number = " & Err.number)
+    call ok(getVT(x) = "VT_EMPTY*", "getVT = " & getVT(x))
+    call Err.clear()
+    x = FormatDateTime(.10,null)
+    call ok(Err.number = 94, "Err.number = " & Err.number)
+    call ok(getVT(x) = "VT_EMPTY*", "getVT = " & getVT(x))
+end sub
+
+sub testFormatDateTime()
+    dim x
+
+    x = FormatDateTime(0)
+    call ok(getVT(x) = "VT_BSTR*", "getVT = " & getVT(x))
+    x = FormatDateTime(0.1,1)
+    call ok(getVT(x) = "VT_BSTR*", "getVT = " & getVT(x))
+end sub
+
+call testFormatDateTime()
+call testFormatDateTimeError()
+
 Call reportSuccess()