| 1 | ## our_shell: ysh
|
| 2 | ## oils_failures_allowed: 1
|
| 3 |
|
| 4 | #### Local place
|
| 5 |
|
| 6 | # Work around stdin buffering issue with read --line
|
| 7 | #
|
| 8 | # The framework test/sh_spec.py uses echo "$code_string" | $SH
|
| 9 | #
|
| 10 | # But then we have TWO different values of file descriptor 0 (stdin)
|
| 11 | #
|
| 12 | # - the pipe with the code
|
| 13 | # - the pipe created in th shell for echo zzz | read --line
|
| 14 | #
|
| 15 | # Shells read one line at a time, but read --line explicitly avoids this.
|
| 16 | #
|
| 17 | # TODO: I wonder if we should consider outlawing read --line when stdin has code
|
| 18 | # Only allow it for:
|
| 19 | #
|
| 20 | # $SH -c 'echo hi'
|
| 21 | # $SH myscript.sh
|
| 22 | #
|
| 23 | # There could be a warning like read --line --no-fighting or something.
|
| 24 |
|
| 25 | cat >tmp.sh <<'EOF'
|
| 26 | func f(place) {
|
| 27 | var x = 'f'
|
| 28 | echo zzz | read --all (place)
|
| 29 | echo "f x=$x"
|
| 30 | }
|
| 31 |
|
| 32 | func fillPlace(place) {
|
| 33 | var x = 'fillPlace'
|
| 34 | call f(place)
|
| 35 | echo "fillPlace x=$x"
|
| 36 | }
|
| 37 |
|
| 38 | proc p {
|
| 39 | var x = 'hi'
|
| 40 | call fillPlace(&x)
|
| 41 | echo "p x=$x"
|
| 42 | }
|
| 43 |
|
| 44 | x=global
|
| 45 |
|
| 46 | p
|
| 47 |
|
| 48 | echo "global x=$x"
|
| 49 | EOF
|
| 50 |
|
| 51 | $SH tmp.sh
|
| 52 |
|
| 53 | ## STDOUT:
|
| 54 | f x=f
|
| 55 | fillPlace x=fillPlace
|
| 56 | p x=zzz
|
| 57 |
|
| 58 | global x=global
|
| 59 | ## END
|
| 60 |
|
| 61 | #### place->setValue()
|
| 62 |
|
| 63 | func f(place) {
|
| 64 | var x = 'f'
|
| 65 | call place->setValue('zzz')
|
| 66 | echo "f x=$x"
|
| 67 | }
|
| 68 |
|
| 69 | func fillPlace(place) {
|
| 70 | var x = 'fillPlace'
|
| 71 | call f(place)
|
| 72 | echo "fillPlace x=$x"
|
| 73 | }
|
| 74 |
|
| 75 | proc p {
|
| 76 | var x = 'hi'
|
| 77 | call fillPlace(&x)
|
| 78 | echo "p x=$x"
|
| 79 | }
|
| 80 |
|
| 81 | x=global
|
| 82 |
|
| 83 | p
|
| 84 | echo "global x=$x"
|
| 85 |
|
| 86 | ## STDOUT:
|
| 87 | f x=f
|
| 88 | fillPlace x=fillPlace
|
| 89 | p x=zzz
|
| 90 | global x=global
|
| 91 | ## END
|
| 92 |
|
| 93 | #### Places can't dangle; they should be passed UP the stakc only
|
| 94 |
|
| 95 | func f() {
|
| 96 | var f_local = null
|
| 97 | return (&f_local)
|
| 98 | }
|
| 99 |
|
| 100 | func g() {
|
| 101 | # This place is now INVALID!
|
| 102 | var place = f()
|
| 103 |
|
| 104 | # Should fail when we try to use the place
|
| 105 | echo zzz | read --all (place)
|
| 106 |
|
| 107 | # This should also fail
|
| 108 | # call place->setValue('zzz')
|
| 109 |
|
| 110 | }
|
| 111 |
|
| 112 | call g()
|
| 113 |
|
| 114 | echo done
|
| 115 |
|
| 116 | ## status: 1
|
| 117 | ## STDOUT:
|
| 118 | ## END
|
| 119 |
|
| 120 |
|
| 121 | #### Container Place (Dict)
|
| 122 |
|
| 123 | var d = {key: 'hi'}
|
| 124 |
|
| 125 | echo zzz | read --all (&d.key)
|
| 126 |
|
| 127 | # I guess this works
|
| 128 | echo newkey | read --all (&d.newkey)
|
| 129 |
|
| 130 | echo key=$[d.key]
|
| 131 | echo key=$[d.newkey]
|
| 132 |
|
| 133 | ## STDOUT:
|
| 134 | ## END
|
| 135 |
|
| 136 |
|