f8fa94cb20
shallow() casts its string argument to a seq and then tries to access its fields. Guess what happens when that string is nil, which seems to be the representation of an empty string (both the default value and an explicitly assigned ""). Segfault encountered when running "ntags -R ." on a large project. The relevant line: https://bitbucket.org/nimcontrib/ntags/src/a1c62c38e539877c105fbe4e08d06b76232f8017/ntags.nim#lines-125
32 lines
460 B
Nim
32 lines
460 B
Nim
discard """
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output: '''@["", "", "", "", "", "", "", "meh"]'''
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exitcode: "0"
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"""
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when true:
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var ab: string
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ab &= "more"
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doAssert ab == "more"
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var x: seq[string]
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setLen(x, 7)
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x.add "meh"
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var s: string
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var z = "abc"
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var zz: string
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s &= "foo" & z & zz
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doAssert s == "fooabc"
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echo x
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# casting an empty string as sequence with shallow() should not segfault
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var s2: string
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shallow(s2)
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s2 &= "foo"
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doAssert s2 == "foo"
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