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check the value of nodeptr in tnode_t::source_range.

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Avoids a possible nullptr dereference
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Lior Stern 2020-03-31 17:03:13 +03:00 committed by ridiculousfish
parent d6e2110cdf
commit 1b23e5471d
1 changed files with 1 additions and 1 deletions
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src/tnode.h
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@ -97,7 +97,7 @@ class tnode_t {
uint8_t child_count() const { return nodeptr ? nodeptr->child_count : 0; }
maybe_t<source_range_t> source_range() const {
if (nodeptr->source_start == NODE_OFFSET_INVALID) return none();
if (!nodeptr || nodeptr->source_start == NODE_OFFSET_INVALID) return none();
return source_range_t{nodeptr->source_start, nodeptr->source_length};
}