Add comma in front of expression in tuple with if/then/else

[nojaf]

Issue created from fantomas-online

Code

let y =
    if String.IsNullOrWhiteSpace(args) then
        ""
    elif args.StartsWith("(") then
        args
    elif v.CurriedParameterGroups.Count > 1
         && (not verboseMode) then
        " " + args
    else
        sprintf "(%s)" args
    , namesWithIndices

Result

let y =
    if String.IsNullOrWhiteSpace(args) then
        ""
    elif args.StartsWith("(") then
        args
    elif v.CurriedParameterGroups.Count > 1
         && (not verboseMode) then
        " " + args
    else
        sprintf "(%s)" args,
    namesWithIndices

Problem description

This is similar to #1269, SynExpr.IfThenElse needs to be taken into account as well.

Extra information

• The formatted result breaks by code.
• The formatted result gives compiler warnings.
• I or my company would be willing to help fix this.

Options

Fantomas Master at 12/22/2020 20:24:38 - 88235c3

Default Fantomas configuration

_{Did you know that you can ignore files when formatting from fantomas-tool or the FAKE targets by using a .fantomasignore file?}

[nojaf]

This didn't solve the problem, unfortunately.

Add the comma upfront only works when the else branch is in one line.