| 1 | # Test var / setvar / etc.
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| 2 |
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| 3 | ## our_shell: ysh
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| 4 | ## oils_failures_allowed: 2
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| 5 |
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| 6 | #### proc static check: const can't be mutated
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| 7 | proc f {
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| 8 | const x = 'local'
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| 9 | echo x=$x
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| 10 | setvar x = 'mutated'
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| 11 | echo x=$x
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| 12 | }
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| 13 | ## status: 2
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| 14 | ## STDOUT:
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| 15 | ## END
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| 16 |
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| 17 | #### top-level dynamic check: const can't be be mutated
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| 18 | shopt -s ysh:all
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| 19 |
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| 20 | const x = 'foo'
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| 21 | echo x=$x
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| 22 | const x = 'bar'
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| 23 | echo x=$x
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| 24 | ## status: 1
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| 25 | ## STDOUT:
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| 26 | x=foo
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| 27 | ## END
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| 28 |
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| 29 | #### top level: var can be redefined by var/const
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| 30 | var x = "global"
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| 31 | echo x=$x
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| 32 | f() {
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| 33 | var x = "local"
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| 34 | echo x=$x
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| 35 | }
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| 36 | f
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| 37 | var x = "g2"
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| 38 | echo x=$x
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| 39 | const x = 'now-const'
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| 40 | echo x=$x
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| 41 | const x = 'oops'
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| 42 | echo x=$x
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| 43 | ## status: 1
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| 44 | ## STDOUT:
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| 45 | x=global
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| 46 | x=local
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| 47 | x=g2
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| 48 | x=now-const
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| 49 | ## END
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| 50 |
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| 51 | #### setvar mutates local
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| 52 | proc f {
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| 53 | var x = 'local'
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| 54 | echo x=$x
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| 55 | setvar x = 'mutated'
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| 56 | echo x=$x
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| 57 | }
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| 58 |
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| 59 | var x = 'global'
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| 60 | echo x=$x
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| 61 | f
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| 62 | echo x=$x
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| 63 | ## STDOUT:
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| 64 | x=global
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| 65 | x=local
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| 66 | x=mutated
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| 67 | x=global
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| 68 | ## END
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| 69 |
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| 70 | #### top level: setvar creates global
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| 71 | setvar x = 'global'
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| 72 | echo x=$x
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| 73 | setvar x = 'g2'
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| 74 | echo x=$x
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| 75 | ## STDOUT:
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| 76 | x=global
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| 77 | x=g2
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| 78 | ## END
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| 79 |
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| 80 | #### top level: setvar mutates var
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| 81 | var x = 1
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| 82 | setvar x = 42 # this is allowed
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| 83 | echo $x
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| 84 | setvar y = 50 # error because it's not declared
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| 85 | echo $y
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| 86 | ## STDOUT:
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| 87 | 42
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| 88 | 50
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| 89 | ## END
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| 90 |
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| 91 | #### proc static check: variable changed by setvar must be declared
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| 92 | shopt -s ysh:all
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| 93 |
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| 94 | var x = 1
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| 95 | f() {
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| 96 | # setting global is OK
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| 97 | setglobal x = 'XX'
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| 98 | echo x=$x
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| 99 |
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| 100 | # local NOT DECLARED
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| 101 | setvar x = 'YY'
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| 102 | echo y=$y
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| 103 | }
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| 104 | ## status: 2
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| 105 | ## STDOUT:
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| 106 | ## END
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| 107 |
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| 108 | #### setglobal
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| 109 | f() {
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| 110 | var x = 'local'
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| 111 | echo x=$x
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| 112 | setglobal x = 'mutated'
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| 113 | }
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| 114 | var x = 'global'
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| 115 | echo x=$x
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| 116 | f
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| 117 | echo x=$x
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| 118 | ## STDOUT:
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| 119 | x=global
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| 120 | x=local
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| 121 | x=mutated
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| 122 | ## END
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| 123 |
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| 124 | #### setglobal of undeclared var is allowed
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| 125 | var x = 'XX'
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| 126 | echo x=$x
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| 127 | setglobal x = 'xx'
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| 128 | echo x=$x
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| 129 |
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| 130 | # fatal error
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| 131 | setglobal y = 'YY'
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| 132 |
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| 133 | ## STDOUT:
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| 134 | x=XX
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| 135 | x=xx
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| 136 | ## END
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| 137 |
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| 138 | #### var a, b does implicit null init
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| 139 |
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| 140 | var x
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| 141 | var a, b
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| 142 |
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| 143 | var c: Int, d: Int
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| 144 |
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| 145 | echo $x $a $b $c $d
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| 146 |
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| 147 | ## STDOUT:
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| 148 | null null null null null
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| 149 | ## END
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| 150 |
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| 151 | #### var x, y = f()
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| 152 |
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| 153 | # The syntax consistent with JavaScript would be
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| 154 | # var x = 1, y = 2;
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| 155 |
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| 156 | var x, y = 1, 2
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| 157 | echo "x=$x y=$y"
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| 158 |
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| 159 | func f() {
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| 160 | # this syntax would be nice, but is illegal
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| 161 | # return (3, 4)
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| 162 | return ([3, 4])
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| 163 | }
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| 164 |
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| 165 | var a, b = f()
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| 166 | echo "a=$a b=$b"
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| 167 |
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| 168 |
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| 169 | ## STDOUT:
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| 170 | x=1 y=2
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| 171 | a=3 b=4
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| 172 | ## END
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| 173 |
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| 174 | #### const x, y = f()
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| 175 |
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| 176 | func f() {
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| 177 | # this syntax would be nice, but is illegal
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| 178 | # return (3, 4)
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| 179 | return ([3, 4])
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| 180 | }
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| 181 |
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| 182 |
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| 183 | const a, b = f()
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| 184 | echo "a=$a b=$b"
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| 185 |
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| 186 | setvar a = 9 # error
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| 187 |
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| 188 | ## status: 1
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| 189 | ## STDOUT:
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| 190 | a=3 b=4
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| 191 | ## END
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| 192 |
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| 193 |
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| 194 | #### setvar x, y = 1, 2
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| 195 |
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| 196 | # Python doesn't allow you to have annotation on each variable!
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| 197 | # https://www.python.org/dev/peps/pep-0526/#where-annotations-aren-t-allowed
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| 198 | var x Int = 3
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| 199 | var y Int = 4
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| 200 | echo "x=$x y=$y"
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| 201 |
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| 202 | setvar x, y = 1, 9
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| 203 | echo "x=$x y=$y"
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| 204 |
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| 205 | setvar y, x = x, y
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| 206 | echo "x=$x y=$y"
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| 207 |
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| 208 | setvar x, y = x*2, x*3
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| 209 | echo "x=$x y=$y"
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| 210 |
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| 211 | ## STDOUT:
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| 212 | x=3 y=4
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| 213 | x=1 y=9
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| 214 | x=9 y=1
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| 215 | x=18 y=27
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| 216 | ## END
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| 217 |
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| 218 | #### setvar to swap List and Dict elements
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| 219 | var x = [1, 2, 3]
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| 220 | echo @x
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| 221 |
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| 222 | setvar x[0], x[1] = x[1], x[0]
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| 223 |
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| 224 | echo @x
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| 225 |
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| 226 | var d = {int: 42}
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| 227 |
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| 228 | setvar x[0], d.int = d.int, x[0]
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| 229 |
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| 230 | echo @x
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| 231 | json write (d)
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| 232 |
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| 233 | ## STDOUT:
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| 234 | 1 2 3
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| 235 | 2 1 3
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| 236 | 42 1 3
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| 237 | {
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| 238 | "int": 2
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| 239 | }
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| 240 | ## END
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| 241 |
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| 242 | #### setvar d.key = 42 (setitem)
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| 243 | shopt -s ysh:all
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| 244 |
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| 245 | var d = {}
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| 246 | setvar d['f2'] = 42
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| 247 | setvar d.f3 = 43
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| 248 |
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| 249 | # Use the opposite thing to retrieve
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| 250 | var f3 = d['f3']
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| 251 | var f2 = d.f2
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| 252 | echo f3=$f3
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| 253 | echo f2=$f2
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| 254 | ## STDOUT:
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| 255 | f3=43
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| 256 | f2=42
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| 257 | ## END
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| 258 |
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| 259 | #### setvar mylist[1] = 42 (setitem)
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| 260 | shopt -s ysh:all
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| 261 | var mylist = [1,2,3]
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| 262 | setvar mylist[1] = 42
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| 263 |
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| 264 | write --sep ' ' @mylist
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| 265 | ## STDOUT:
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| 266 | 1 42 3
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| 267 | ## END
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| 268 |
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| 269 | #### mixing assignment builtins and YSH assignment
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| 270 | shopt -s ysh:all parse_equals
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| 271 |
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| 272 | proc local-var {
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| 273 | local x=1
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| 274 | var x = 2
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| 275 | echo x=$x
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| 276 | }
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| 277 |
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| 278 | proc readonly-var {
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| 279 | readonly x=1
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| 280 | var x = 2
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| 281 | echo x=$x
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| 282 | }
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| 283 |
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| 284 | try { eval 'local-var' }
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| 285 | echo status=$_status
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| 286 | try { eval 'readonly-var' }
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| 287 | echo status=$_status
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| 288 |
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| 289 | ## STDOUT:
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| 290 | x=2
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| 291 | status=0
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| 292 | status=1
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| 293 | ## END
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| 294 |
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| 295 | #### circular dict - TODO 2023-06 REGRESS
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| 296 | var d = {name: 'foo'}
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| 297 | = d
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| 298 | setvar d['name'] = 123
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| 299 | = d
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| 300 | setvar d['name'] = 'mystr'
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| 301 | = d
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| 302 | #setvar d['name'] = d
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| 303 | #= d
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| 304 |
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| 305 | # This used to print ...
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| 306 |
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| 307 | ## STDOUT:
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| 308 | (OrderedDict) <'name': 'foo'>
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| 309 | (OrderedDict) <'name': 123>
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| 310 | (OrderedDict) <'name': 'mystr'>
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| 311 | (OrderedDict) <'name': ...>
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| 312 | ## END
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| 313 |
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| 314 | #### circular list - TODO 2023-06 REGRESS
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| 315 | var L = [1,2,3]
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| 316 | = L
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| 317 | #setvar L[0] = L
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| 318 | #= L
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| 319 | ## STDOUT:
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| 320 | (List) [1, 2, 3]
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| 321 | (List) [[...], 2, 3]
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| 322 | ## END
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| 323 |
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| 324 |
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| 325 | #### exit code of var, const, setvar with command sub
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| 326 |
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| 327 | # NOTE: This feels PROBLEMATIC without command_sub_errexit feels like it should
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| 328 | # be the last one ...
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| 329 |
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| 330 | run() {
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| 331 | $REPO_ROOT/bin/osh -O parse_proc -c "$@"
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| 332 |
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| 333 | # Identical
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| 334 | # $SH +O ysh:all -O parse_proc -c "$@"
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| 335 | }
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| 336 |
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| 337 | set +o errexit
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| 338 |
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| 339 | run '
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| 340 | var x = $(false)
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| 341 | echo inside1=$?
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| 342 | '
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| 343 | echo outside1=$?
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| 344 |
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| 345 | run '
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| 346 | setvar x = $(false)
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| 347 | echo inside2=$?
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| 348 | '
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| 349 | echo outside2=$?
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| 350 |
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| 351 | # Argument list
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| 352 | run '
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| 353 | call split( $(false) )
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| 354 | echo inside3=$?
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| 355 | '
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| 356 | echo outside3=$?
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| 357 |
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| 358 | # Place expression
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| 359 | run '
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| 360 | var d = {}
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| 361 | setvar d[ $(false) ] = 42
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| 362 | echo inside4=$?
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| 363 | '
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| 364 | echo outside4=$?
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| 365 |
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| 366 | ## STDOUT:
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| 367 | outside1=1
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| 368 | outside2=1
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| 369 | outside3=1
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| 370 | outside4=1
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| 371 | ## END
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| 372 |
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| 373 | #### setvar obj[INVALID TYPE] =
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| 374 |
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| 375 | set +o errexit
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| 376 |
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| 377 | $SH -c '
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| 378 | var d = {}
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| 379 | setvar d["key"] = 5
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| 380 | echo "d.key = $[d.key]"
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| 381 | setvar d[42] = 6
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| 382 | echo "should not get here"
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| 383 | '
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| 384 | echo outside1=$?
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| 385 |
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| 386 | $SH -c '
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| 387 | var L = [42]
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| 388 | setvar L[0] = 43
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| 389 | echo "L[0] = $[L[0]]"
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| 390 | setvar L["key"] = 44
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| 391 | '
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| 392 | echo outside2=$?
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| 393 |
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| 394 | ## STDOUT:
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| 395 | d.key = 5
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| 396 | outside1=3
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| 397 | L[0] = 43
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| 398 | outside2=3
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| 399 | ## END
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