Can I get detailed exception stacktrace in PowerShell?

Question

Runing such script:

 1: function foo()
 2: {
 3:    bar
 4: }
 5: 
 6: function bar()
 7: {
 8:     throw \"test\"
 9: }
10: 
11: foo

I see

Answer 1

There are cases where PowerShell doesn't seem to keep a backtrace, like calling a method or calling a function with .Invoke(). For that, Set-PSDebug -Trace 2 may come in handy. It will print every executed line of the running script.

Try flipping # on (1) and (2) and running WrapStackTraceLog({ function f{ 1/0 } ; & f }) # let's divide by zero

Function WrapStackTraceLog($func) {
    try {
        # return $func.Invoke($args)  # (1)
        return (& $func $args)  # (2)
    } catch {
        Write-Host ('=' * 70)
        Write-Host $_.Exception.Message
        Write-Host ('-' * 70)
        Write-Host $_.ScriptStackTrace
        Write-Host ('-' * 70)
        Write-Host "$StackTrace"
        Write-Host ('=' * 70)
    }
}

Branch (1) exception caught:

Exception calling "Invoke" with "1" argument(s): "Attempted to divide by zero."

Branch (2) is more informative:

at f, : line 1
at , : line 1
at global:WrapStackTraceLog, : line 4
at , : line 1

But, you can still trace your Invokes with tracing on, branch (1):

DEBUG:     ! CALL function 'f'
DEBUG:    1+ WrapStackTraceLog({ function f{  >>>> 1/0 } ; & f })
DEBUG:    6+          >>>> Write-Host ('=' * 70)
======================================================================
DEBUG:    7+          >>>> Write-Host $_.Exception.Message
Exception calling "Invoke" with "1" argument(s): "Attempted to divide by zero."