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src,buffer: evaluate THROW_AND_RETURN_IF_OOB() expression only once #41945

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Feb 17, 2022
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src,buffer: evaluate THROW_AND_RETURN_IF_OOB() expression only once #41945

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5 changes: 3 additions & 2 deletions src/node_buffer.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -41,8 +41,9 @@

#define THROW_AND_RETURN_IF_OOB(r) \
do { \
if ((r).IsNothing()) return; \
if (!(r).FromJust()) \
Maybe<bool> m = (r); \
if (m.IsNothing()) return; \
if (!m.FromJust()) \
return node::THROW_ERR_OUT_OF_RANGE(env, "Index out of range"); \
} while (0) \

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