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goto.jl
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goto.jl
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# This file is a part of Julia. License is MIT: https://julialang.org/license
# Basic goto tests
function goto_test1()
@goto a
return false
@label a
return true
end
@test goto_test1()
@test_throws ErrorException eval(
quote
function goto_test2()
@goto a
@label a
@label a
return
end
end)
@test_throws ErrorException eval(
quote
function goto_test3()
@goto a
return
end
end)
@test_throws ErrorException eval(
quote
function goto_test4()
@goto a
try
@label a
catch
end
end
end)
# test that labels in macros are reassigned
macro goto_test5_macro()
@label a
end
@test_throws ErrorException eval(
quote
function goto_test5()
@goto a
@goto_test5_macro
return
end
end)
@test_throws ErrorException eval(
quote
function goto_test6()
try
@goto a
finally
end
@label a
return
end
end)
function goto_test6()
@goto a
@label a
end
@test goto_test6() === nothing
function goto_test7(x)
@label a
if x
@goto a
end
end
@test goto_test7(false) === nothing
module GotoMacroTest
macro goto_test8_macro()
quote
function $(esc(:goto_test8))()
@label a
@goto a
end
end
end
end
GotoMacroTest.@goto_test8_macro
# issue #15600
function t0_15600(flag)
flag && @goto return2
return 1
@label return2
return 2
end
@test t0_15600(true) == 2
@test t0_15600(false) == 1
function t1_15600(flag)
flag || @goto return2
return 1
@label return2
return 2
end
@test t1_15600(true) == 1
@test t1_15600(false) == 2
# issue #15561
function f15561()
a = @goto crater
@label crater
end
@test f15561() === nothing