[Tcl-bugs] [ tcl-Bugs-3045010 ] [apply]: overlong "wrong # args" error

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Bugs item #3045010, was opened at 2010-08-14 19:36
Message generated for change (Settings changed) made by dkf
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>Category: 22. [proc] and [uplevel]
Group: development: 8.6b1.1
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Andy Goth (andygoth)
Assigned to: Donal K. Fellows (dkf)
Summary: [apply]: overlong "wrong # args" error

Initial Comment:
[apply]'s "wrong # args" error message is impractically long, because it contains the full lambda.  I imagine this is a consequence of using Tcl_WrongNumArgs() with objc=2.  For example:

apply {{msg rep} {
    for {set i 0} {$i < $rep} {incr i} {
        puts $msg
    }
}}

gives the error:

wrong # args: should be "apply {{msg rep} {
    for {set i 0} {$i < $rep} {incr i} {
        puts $msg
    }
}} msg rep"

I suggest omitting the lambda, since the only relevant part (the parameter list) is repeated at the end of the error anyway.  In my example, this would be simply:

wrong # args: should be "apply lambdaExpr msg rep"

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