# Test that xtrace output is correctly generated

%prep
  mkdir xtrace.tmp && cd xtrace.tmp

  function xtf {
    local regression_test_dummy_variable
    print "$*"
  }
  function xtfx {
    local regression_test_dummy_variable
    print "Tracing: (){ builtin 2>file }" 2>>xtrace.err
    { print "Tracing: (){ { builtin } 2>file }" } 2>>xtrace.err
  }
  echo 'print "$*"' > xt.in

%test

  PS4='+%N:%i> '
  set -x
  print 'Tracing: builtin'
  print 'Tracing: builtin 2>file' 2>xtrace.err
  cat <<<'Tracing: external'
  cat <<<'Tracing: external 2>file' 2>>xtrace.err
  ( print 'Tracing: ( builtin )' )
  ( print 'Tracing: ( builtin ) 2>file' ) 2>>xtrace.err
  ( cat <<<'Tracing: ( external )' )
  ( cat <<<'Tracing: ( external ) 2>file' ) 2>>xtrace.err
  { print 'Tracing: { builtin }' }
  { print 'Tracing: { builtin } 2>file' } 2>>xtrace.err
  { cat <<<'Tracing: { external }' }
  { cat <<<'Tracing: { external } 2>file' } 2>>xtrace.err
  repeat 1 do print 'Tracing: do builtin done'; done
  repeat 1 do print 'Tracing: do builtin done 2>file'; done 2>>xtrace.err
  repeat 1 do cat <<<'Tracing: do external done'; done
  repeat 1 do cat <<<'Tracing: do external done 2>file'; done 2>>xtrace.err
  xtf 'Tracing: function'
  xtf 'Tracing: function 2>file' 2>>xtrace.err
  xtfx
  . ./xt.in 'Tracing: source'
  . ./xt.in 'Tracing: source 2>file' 2>>xtrace.err
  set +x
  cat xtrace.err
0:xtrace with and without redirection
>Tracing: builtin
>Tracing: builtin 2>file
>Tracing: external
>Tracing: external 2>file
>Tracing: ( builtin )
>Tracing: ( builtin ) 2>file
>Tracing: ( external )
>Tracing: ( external ) 2>file
>Tracing: { builtin }
>Tracing: { builtin } 2>file
>Tracing: { external }
>Tracing: { external } 2>file
>Tracing: do builtin done
>Tracing: do builtin done 2>file
>Tracing: do external done
>Tracing: do external done 2>file
>Tracing: function
>Tracing: function 2>file
>Tracing: (){ builtin 2>file }
>Tracing: (){ { builtin } 2>file }
>Tracing: source
>Tracing: source 2>file
>+(eval):8> print 'Tracing: ( builtin ) 2>file'
>+(eval):10> cat
>+(eval):12> print 'Tracing: { builtin } 2>file'
>+(eval):14> cat
>+(eval):16> print 'Tracing: do builtin done 2>file'
>+(eval):18> cat
>+xtf:1> local regression_test_dummy_variable
>+xtf:2> print 'Tracing: function 2>file'
>+xtfx:3> print 'Tracing: (){ { builtin } 2>file }'
?+(eval):3> print 'Tracing: builtin'
?+(eval):4> print 'Tracing: builtin 2>file'
?+(eval):5> cat
?+(eval):6> cat
?+(eval):7> print 'Tracing: ( builtin )'
?+(eval):9> cat
?+(eval):11> print 'Tracing: { builtin }'
?+(eval):13> cat
?+(eval):15> print 'Tracing: do builtin done'
?+(eval):17> cat
?+(eval):19> xtf 'Tracing: function'
?+xtf:1> local regression_test_dummy_variable
?+xtf:2> print 'Tracing: function'
?+(eval):20> xtf 'Tracing: function 2>file'
?+(eval):21> xtfx
?+xtfx:1> local regression_test_dummy_variable
?+xtfx:2> print 'Tracing: (){ builtin 2>file }'
?+(eval):22> . ./xt.in 'Tracing: source'
?+./xt.in:1> print 'Tracing: source'
?+(eval):23> . ./xt.in 'Tracing: source 2>file'
?+./xt.in:1> print 'Tracing: source 2>file'
?+(eval):24> set +x

 typeset -ft xtf
 xtf 'Tracing: function'
0:tracing function
>Tracing: function
?+xtf:1> local regression_test_dummy_variable
?+xtf:2> print 'Tracing: function'

 echo 'PS4="+%x:%I> "
 fn() {
   print This is fn.
 }
 :
 fn
 ' >fnfile
 $ZTST_testdir/../Src/zsh -fx ./fnfile 2>errfile
 grep '\./fnfile' errfile 1>&2
0:Trace output with sourcefile and line number.
>This is fn.
?+./fnfile:1> PS4='+%x:%I> ' 
?+./fnfile:5> :
?+./fnfile:6> fn
?+./fnfile:3> print This is fn.

 set -x
 [[ 'f o' == 'f x'* || 'b r' != 'z o' && 'squashy sound' < 'squishy sound' ]]
 [[ 'f o' = 'f x'* || 'b r' != 'z o' && 'squashy sound' < 'squishy sound' ]]
 [[ -e nonexistentfile || ( -z '' && -t 3 ) ]]
 set +x
0:Trace for conditions
?+(eval):2> [[ 'f o' == f\ x* || 'b r' != z\ o && 'squashy sound' < 'squishy sound' ]]
?+(eval):3> [[ 'f o' = f\ x* || 'b r' != z\ o && 'squashy sound' < 'squishy sound' ]]
?+(eval):4> [[ -e nonexistentfile || -z '' && -t 3 ]]
?+(eval):5> set +x

  # Part 1: Recurses into nested anonymous functions
  fn() {
    () { () { true } }
  }
  functions -T fn
  fn
  # Part 2: Doesn't recurse into named functions
  gn() { true }
  fn() { gn }
  functions -T fn
  fn
0:tracing recurses into anonymous functions
?+fn:1> '(anon)'
?+(anon):0> '(anon)'
?+(anon):0> true
?+fn:0> gn

  test_cases=(
      f            # baseline
      foo-bar      # Dash
      ヌ           # Meta (the UTF-8 representation of this character has an 0x83 byte)
      \$\'ba\\0z\' # Nul, escaped as though by ${(qqqq)}
  )
  for 1 in "$test_cases[@]"; do
    eval "
      ${1}() {
        ${1}() { echo inner }
      }
      functions -T ${1}
      ${1}
      LC_ALL=C which ${1}
    "
  done
0:a function that redefines itself preserves tracing
>f () {
>	# traced
>	echo inner
>}
>foo-bar () {
>	# traced
>	echo inner
>}
>$'\M-c\M-\C-C\M-\C-L' () {
>	# traced
>	echo inner
>}
>$'ba\C-@z' () {
>	# traced
>	echo inner
>}

 function -T { echo traced anonymous function }
 functions -- -T # no output
1:define traced function: anonymous function
?+(anon):0> echo traced anonymous function
>traced anonymous function

 function -T f { echo traced named function }
 functions -- -T # no output
 functions f
 f
0:define traced function: named function
>f () {
>	# traced
>	echo traced named function
>}
?+f:0> echo traced named function
>traced named function

 function -T -- -T { echo trace function literally named "-T" }
 -T
 function -T -- { echo trace anonymous function }
 functions -- -- # no output
1:define traced function: parse test
?+-T:0> echo trace function literally named -T
>trace function literally named -T
?+(anon):0> echo trace anonymous function
>trace anonymous function

 function -- g { echo g }
 g
 function -- { echo anonymous }
 functions -- -- # no output
1:function end-of-"options" syntax, #1
>g
>anonymous

 function -- -T { echo runs }
 functions -- -- # no output
 echo the definition didn\'t execute it
 -T
0:function end-of-"options" syntax, #2
>the definition didn't execute it
>runs

 f() g
 g() :
 functions -t f
 f
0:functions -t smoke test #1
?+f:4> g
?+g:4> :

 f() g
 g() { () : }
 functions -t f
 f
0:functions -t smoke test #2
?+f:4> g
?+g:0> '(anon)'
?+(anon):0> :

 f() g
 g() :
 (
  functions -T f
  functions -t f
  f
 )
 (
  functions -t f
  functions -T f
  f
 )
0:ensure the behaviour  of 'functions -Tt f' doesn't change surreptitiously
?+f:6> g
?+f:11> g
F:If this test fails, the new behaviour may be 
F:workers/48591.