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authorRoberto Ierusalimschy <roberto@inf.puc-rio.br>2018-11-29 16:02:44 -0200
committerRoberto Ierusalimschy <roberto@inf.puc-rio.br>2018-11-29 16:02:44 -0200
commit6d04537ea660fd12fc16c328366b701fabaf4919 (patch)
tree41eab6e4d87552e29731db552f7d58d679c56973 /lmem.c
parent7696c6474fe51ed59fee324e78c1233af74febdd (diff)
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A to-be-closed variable must have a closable value (or be nil)
It is an error for a to-be-closed variable to have a non-closable non-nil value when it is being closed. This situation does not seem to be useful and often hints to an error. (Particularly in the C API, it is easy to change a to-be-closed index by mistake.)
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