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fix #15972 (#15994)

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* fix #15972

* add testcase

* more
This commit is contained in:
flywind 2020-11-18 08:14:14 +08:00 • committed by GitHub
commit 0869d2a477
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4 changed files with 34 additions and 2 deletions
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10
tests/stmt/tforloop_tuple_multiple_underscore.nim Normal file
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@ -0,0 +1,10 @@
discard """
errormsg: "undeclared identifier: '_'"
"""
iterator iter(): (int, int, int) =
yield (1, 1, 2)
for (_, i, _) in iter():
echo _

16
tests/stmt/tforloop_tuple_underscore.nim Normal file
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@ -0,0 +1,16 @@
discard """
errormsg: "undeclared identifier: '_'"
"""
iterator iter(): (int, int) =
yield (1, 2)
yield (3, 4)
yield (1, 2)
yield (3, 4)
yield (1, 2)
yield (3, 4)
for (_, i) in iter():
echo _

6
tests/stmt/tforloop_underscore.nim Normal file
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@ -0,0 +1,6 @@
discard """
errormsg: "undeclared identifier: '_'"
"""
for _ in ["a"]:
echo _