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lang_modify with list object and unnamed NULL hangs R #187

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hongooi73 opened this issue Jun 22, 2017 · 1 comment
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lang_modify with list object and unnamed NULL hangs R #187

hongooi73 opened this issue Jun 22, 2017 · 1 comment

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@hongooi73
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library(rlang)
lang_modify(list(a=1), NULL)

Leaves R unresponsive; the only fix is to shut it down from the OS. This is on Windows 10 Pro 64-bit.

This is an edge case, but hanging R seems a bit unfriendly. It should probably throw an error.

@egnha
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egnha commented Jun 22, 2017

@Hong-Revo Good catch. On Mac OS (El Capitan) and R 3.4.0, this segfaults.

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