| 1 | ## oils_failures_allowed: 0
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| 2 |
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| 3 | #### Open proc (any number of args)
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| 4 | shopt --set parse_proc
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| 5 |
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| 6 | proc f {
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| 7 | var x = 42
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| 8 | return $x
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| 9 | }
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| 10 | # this gets called with 3 args then?
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| 11 | f a b c
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| 12 | echo status=$?
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| 13 | ## STDOUT:
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| 14 | status=42
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| 15 | ## END
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| 16 |
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| 17 | #### Closed proc with no args, passed too many
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| 18 | shopt --set parse_proc
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| 19 |
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| 20 | proc f() {
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| 21 | return 42
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| 22 | }
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| 23 | f
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| 24 | echo status=$?
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| 25 |
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| 26 | f a b # status 2
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| 27 |
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| 28 | ## status: 3
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| 29 | ## STDOUT:
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| 30 | status=42
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| 31 | ## END
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| 32 |
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| 33 | #### Open proc has ARGV
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| 34 | shopt -s ysh:all
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| 35 | proc foo {
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| 36 | echo ARGV @ARGV
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| 37 | # do we care about this? I think we want to syntactically remove it from YSH
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| 38 | # but it can still be used for legacy
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| 39 | echo dollar-at "$@"
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| 40 | }
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| 41 | builtin set -- a b c
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| 42 | foo x y z
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| 43 | ## STDOUT:
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| 44 | ARGV x y z
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| 45 | dollar-at a b c
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| 46 | ## END
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| 47 |
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| 48 | #### Closed proc has empty "$@" or ARGV
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| 49 | shopt -s ysh:all
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| 50 |
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| 51 | proc foo(d, e, f) {
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| 52 | write params $d $e $f
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| 53 | argv.py dollar-at "$@"
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| 54 | argv.py ARGV @ARGV
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| 55 | }
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| 56 | builtin set -- a b c
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| 57 | foo x y z
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| 58 | ## STDOUT:
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| 59 | params
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| 60 | x
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| 61 | y
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| 62 | z
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| 63 | ['dollar-at', 'a', 'b', 'c']
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| 64 | ['ARGV']
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| 65 | ## END
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| 66 |
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| 67 | #### Proc with default args
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| 68 | shopt --set parse_proc
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| 69 |
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| 70 | proc f(x='foo') {
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| 71 | echo x=$x
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| 72 | }
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| 73 | f
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| 74 | ## STDOUT:
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| 75 | x=foo
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| 76 | ## END
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| 77 |
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| 78 | #### Proc with word params
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| 79 | shopt --set parse_proc
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| 80 |
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| 81 | # doesn't require ysh:all
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| 82 | proc f(x, y, z) {
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| 83 | echo $x $y $z
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| 84 | var ret = 42
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| 85 | return $ret
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| 86 | }
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| 87 | # this gets called with 3 args then?
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| 88 | f a b c
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| 89 | echo status=$?
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| 90 | ## STDOUT:
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| 91 | a b c
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| 92 | status=42
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| 93 | ## END
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| 94 |
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| 95 | #### Proc with ... "rest" word params
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| 96 |
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| 97 | # TODO: opts goes with this
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| 98 | # var opt = grep_opts.parse(ARGV)
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| 99 | #
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| 100 | # func(**opt) # Assumes keyword args match?
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| 101 | # parse :grep_opts :opt @ARGV
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| 102 |
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| 103 | shopt -s ysh:all
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| 104 |
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| 105 | proc f(...names) {
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| 106 | write names: @names
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| 107 | }
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| 108 | # this gets called with 3 args then?
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| 109 | f a b c
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| 110 | echo status=$?
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| 111 | ## STDOUT:
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| 112 | names:
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| 113 | a
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| 114 | b
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| 115 | c
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| 116 | status=0
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| 117 | ## END
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| 118 |
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| 119 | #### word rest params 2
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| 120 | shopt --set ysh:all
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| 121 |
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| 122 | proc f(first, ...rest) { # @ means "the rest of the arguments"
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| 123 | write --sep ' ' -- $first
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| 124 | write --sep ' ' -- @rest # @ means "splice this array"
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| 125 | }
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| 126 | f a b c
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| 127 | ## STDOUT:
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| 128 | a
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| 129 | b c
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| 130 | ## END
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| 131 |
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| 132 | #### proc with typed args
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| 133 | shopt --set ysh:upgrade
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| 134 |
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| 135 | # TODO: duplicate param names aren't allowed
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| 136 | proc p (a; mylist, mydict; opt Int = 42) {
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| 137 | pp line (a)
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| 138 | pp line (mylist)
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| 139 | pp line (mydict)
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| 140 | #pp line (opt)
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| 141 | }
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| 142 |
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| 143 | p WORD ([1,2,3], {name: 'bob'})
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| 144 |
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| 145 | echo ---
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| 146 |
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| 147 | p x (:| a b |, {bob: 42}, a = 5)
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| 148 |
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| 149 | ## STDOUT:
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| 150 | (Str) "WORD"
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| 151 | (List) [1,2,3]
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| 152 | (Dict) {"name":"bob"}
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| 153 | ---
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| 154 | (Str) "x"
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| 155 | (List) ["a","b"]
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| 156 | (Dict) {"bob":42}
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| 157 | ## END
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| 158 |
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| 159 | #### Proc name-with-hyphen
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| 160 | shopt --set parse_proc parse_at
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| 161 |
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| 162 | proc name-with-hyphen {
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| 163 | echo @ARGV
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| 164 | }
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| 165 | name-with-hyphen x y z
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| 166 | ## STDOUT:
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| 167 | x y z
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| 168 | ## END
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| 169 |
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| 170 | #### Proc with block arg
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| 171 | shopt --set ysh:upgrade
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| 172 |
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| 173 | # TODO: Test more of this
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| 174 | proc f(x, y ; ; ; block) {
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| 175 | echo f word $x $y
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| 176 |
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| 177 | if (block) {
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| 178 | eval (block)
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| 179 | }
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| 180 | }
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| 181 | f a b { echo FFF }
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| 182 |
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| 183 | # With varargs and block
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| 184 | shopt --set parse_proc
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| 185 |
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| 186 | proc g(x, y, ...rest ; ; ; block) {
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| 187 | echo g word $x $y
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| 188 | echo g rest @rest
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| 189 |
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| 190 | if (block) {
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| 191 | eval (block)
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| 192 | }
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| 193 | }
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| 194 | g a b c d {
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| 195 | echo GGG
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| 196 | }
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| 197 |
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| 198 | ## STDOUT:
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| 199 | f word a b
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| 200 | FFF
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| 201 | g word a b
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| 202 | g rest c d
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| 203 | GGG
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| 204 | ## END
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| 205 |
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| 206 | #### proc returning wrong type
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| 207 | shopt --set parse_proc
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| 208 |
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| 209 | # this should print an error message
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| 210 | proc f {
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| 211 | var a = %(one two)
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| 212 | return $a
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| 213 | }
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| 214 | f
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| 215 | ## status: 3
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| 216 | ## STDOUT:
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| 217 | ## END
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| 218 |
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| 219 | #### proc returning invalid string
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| 220 | shopt --set parse_proc
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| 221 |
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| 222 | # this should print an error message
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| 223 | proc f {
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| 224 | var s = 'not an integer status'
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| 225 | return $s
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| 226 | }
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| 227 | f
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| 228 | ## status: 1
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| 229 | ## STDOUT:
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| 230 | ## END
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| 231 |
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| 232 | #### 'return' doesn't accept expressions
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| 233 | proc p {
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| 234 | return 1 + 2
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| 235 | }
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| 236 | p
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| 237 | ## status: 2
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| 238 | ## STDOUT:
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| 239 | ## END
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| 240 |
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| 241 | #### declare -F prints procs and shell-funcs
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| 242 | shopt --set parse_proc
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| 243 |
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| 244 | myfunc() {
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| 245 | echo hi
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| 246 | }
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| 247 |
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| 248 | proc myproc {
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| 249 | echo hi
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| 250 | }
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| 251 |
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| 252 | declare -F
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| 253 |
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| 254 | ## status: 0
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| 255 | ## STDOUT:
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| 256 | declare -f myfunc
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| 257 | declare -f myproc
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| 258 | ## END
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| 259 |
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| 260 | #### procs are in same namespace as variables
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| 261 | shopt --set parse_proc
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| 262 |
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| 263 | proc myproc {
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| 264 | echo hi
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| 265 | }
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| 266 |
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| 267 | echo "myproc is a $[type(myproc)]"
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| 268 |
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| 269 | ## STDOUT:
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| 270 | myproc is a Proc
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| 271 | ## END
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| 272 |
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| 273 | #### Nested proc is disallowed at parse time
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| 274 | shopt --set parse_proc
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| 275 |
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| 276 | # NOTE: we can disallow this in Oil statically ...
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| 277 | proc f {
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| 278 | proc g {
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| 279 | echo 'G'
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| 280 | }
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| 281 | g
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| 282 | }
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| 283 | f
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| 284 | g
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| 285 | ## status: 2
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| 286 | ## stdout-json: ""
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| 287 |
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| 288 | #### Procs defined inside compound statements (with redefine_proc)
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| 289 |
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| 290 | shopt --set ysh:upgrade
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| 291 | shopt --set redefine_proc_func
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| 292 |
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| 293 | for x in 1 2 {
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| 294 | proc p {
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| 295 | echo 'loop'
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| 296 | }
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| 297 | }
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| 298 | p
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| 299 |
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| 300 | {
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| 301 | proc p {
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| 302 | echo 'brace'
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| 303 | }
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| 304 | }
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| 305 | p
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| 306 |
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| 307 | ## STDOUT:
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| 308 | loop
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| 309 | brace
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| 310 | ## END
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| 311 |
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| 312 | #### Block can be passed literally, or as expression in third arg group
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| 313 | shopt --set ysh:upgrade
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| 314 |
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| 315 | proc p ( ; ; ; block) {
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| 316 | eval (block)
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| 317 | }
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| 318 |
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| 319 | p { echo literal }
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| 320 |
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| 321 | var block = ^(echo expression)
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| 322 | p (; ; block)
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| 323 |
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| 324 | ## STDOUT:
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| 325 | literal
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| 326 | expression
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| 327 | ## END
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| 328 |
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| 329 | #### Pass through all 4 kinds of args
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| 330 |
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| 331 | shopt --set ysh:upgrade
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| 332 |
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| 333 | proc p2 (...words; ...typed; ...named; block) {
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| 334 | pp line (words)
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| 335 | pp line (typed)
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| 336 | pp line (named)
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| 337 | #pp line (block)
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| 338 | # To avoid <Block 0x??> - could change pp line
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| 339 | echo $[type(block)]
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| 340 | }
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| 341 |
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| 342 | proc p1 (...words; ...typed; ...named; block) {
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| 343 | p2 @words (...typed; ...named; block)
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| 344 | }
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| 345 |
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| 346 | p2 a b ('c', 'd', n=99) {
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| 347 | echo literal
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| 348 | }
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| 349 | echo
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| 350 |
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| 351 | # Same thing
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| 352 | var block = ^(echo expression)
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| 353 |
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| 354 | # Note: you need the second explicit ;
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| 355 |
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| 356 | p2 a b ('c', 'd'; n=99; block)
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| 357 | echo
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| 358 |
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| 359 | # what happens when you do this?
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| 360 | p2 a b ('c', 'd'; n=99; block) {
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| 361 | echo duplicate
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| 362 | }
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| 363 |
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| 364 | ## status: 1
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| 365 | ## STDOUT:
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| 366 | (List) ["a","b"]
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| 367 | (List) ["c","d"]
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| 368 | (Dict) {"n":99}
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| 369 | Block
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| 370 |
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| 371 | (List) ["a","b"]
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| 372 | (List) ["c","d"]
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| 373 | (Dict) {"n":99}
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| 374 | Command
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| 375 |
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| 376 | ## END
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| 377 |
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| 378 | #### Global and local ARGV, like "$@"
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| 379 | shopt -s parse_at
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| 380 | argv.py "$@"
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| 381 | argv.py @ARGV
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| 382 | #argv.py "${ARGV[@]}" # not useful, but it works!
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| 383 |
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| 384 | set -- 'a b' c
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| 385 | argv.py "$@"
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| 386 | argv.py @ARGV # separate from the argv stack
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| 387 |
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| 388 | f() {
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| 389 | argv.py "$@"
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| 390 | argv.py @ARGV # separate from the argv stack
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| 391 | }
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| 392 | f 1 '2 3'
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| 393 | ## STDOUT:
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| 394 | []
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| 395 | []
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| 396 | ['a b', 'c']
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| 397 | []
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| 398 | ['1', '2 3']
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| 399 | []
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| 400 | ## END
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| 401 |
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| 402 |
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| 403 | #### Mutating global ARGV
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| 404 |
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| 405 | $SH -c '
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| 406 | shopt -s ysh:upgrade
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| 407 |
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| 408 | argv.py global @ARGV
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| 409 |
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| 410 | # should not be ignored
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| 411 | call ARGV->append("GG")
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| 412 |
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| 413 | argv.py global @ARGV
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| 414 | '
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| 415 | ## STDOUT:
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| 416 | ['global']
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| 417 | ['global', 'GG']
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| 418 | ## END
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| 419 |
|
| 420 | #### Mutating local ARGV
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| 421 |
|
| 422 | $SH -c '
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| 423 | shopt -s ysh:upgrade
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| 424 |
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| 425 | argv.py global @ARGV
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| 426 |
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| 427 | proc p {
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| 428 | argv.py @ARGV
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| 429 | call ARGV->append("LL")
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| 430 | argv.py @ARGV
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| 431 | }
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| 432 |
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| 433 | p local @ARGV
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| 434 |
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| 435 | argv.py global @ARGV
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| 436 |
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| 437 | ' dummy0 'a b' c
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| 438 |
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| 439 | ## STDOUT:
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| 440 | ['global', 'a b', 'c']
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| 441 | ['local', 'a b', 'c']
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| 442 | ['local', 'a b', 'c', 'LL']
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| 443 | ['global', 'a b', 'c']
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| 444 | ## END
|
| 445 |
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| 446 |
|
| 447 | #### typed proc allows all kinds of args
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| 448 | shopt -s ysh:upgrade
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| 449 |
|
| 450 | typed proc p (w; t; n; block) {
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| 451 | pp line (w)
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| 452 | pp line (t)
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| 453 | pp line (n)
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| 454 | echo $[type(block)]
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| 455 | }
|
| 456 |
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| 457 | p word (42, n=99) {
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| 458 | echo block
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| 459 | }
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| 460 |
|
| 461 |
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| 462 | ## STDOUT:
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| 463 | (Str) "word"
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| 464 | (Int) 42
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| 465 | (Int) 99
|
| 466 | Block
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| 467 | ## END
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| 468 |
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| 469 | #### can unset procs without -f
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| 470 | shopt -s ysh:upgrade
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| 471 |
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| 472 | proc foo() {
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| 473 | echo bar
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| 474 | }
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| 475 |
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| 476 | try { foo }
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| 477 | echo status=$[_error.code]
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| 478 |
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| 479 | # TODO: should we abandon declare -F in favour of `pp proc`?
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| 480 | declare -F
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| 481 | unset foo
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| 482 | declare -F
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| 483 |
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| 484 | try { foo }
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| 485 | echo status=$[_error.code]
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| 486 |
|
| 487 | ## STDOUT:
|
| 488 | bar
|
| 489 | status=0
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| 490 | declare -f foo
|
| 491 | status=127
|
| 492 | ## END
|
| 493 |
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| 494 | #### procs shadow sh-funcs
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| 495 | shopt -s ysh:upgrade redefine_proc_func
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| 496 |
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| 497 | f() {
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| 498 | echo sh-func
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| 499 | }
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| 500 |
|
| 501 | proc f {
|
| 502 | echo proc
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| 503 | }
|
| 504 |
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| 505 | f
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| 506 | ## STDOUT:
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| 507 | proc
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| 508 | ## END
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| 509 |
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| 510 | #### first word skips non-proc variables
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| 511 | shopt -s ysh:upgrade
|
| 512 |
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| 513 | grep() {
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| 514 | echo 'sh-func grep'
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| 515 | }
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| 516 |
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| 517 | var grep = 'variable grep'
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| 518 |
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| 519 | grep
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| 520 |
|
| 521 | # We first find `var grep`, but it's a Str not a Proc, so we skip it and then
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| 522 | # find `function grep`.
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| 523 |
|
| 524 | ## STDOUT:
|
| 525 | sh-func grep
|
| 526 | ## END
|