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ircd::js: Return undefined for args::operator[]; bounds check on args::at().

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This commit is contained in:
Jason Volk 2016-11-10 12:20:47 -08:00
parent a44e6f701f
commit 90f81bb871
1 changed files with 8 additions and 0 deletions
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8
include/ircd/js/args.h
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@ -32,6 +32,7 @@ struct args
size_t size() const { return length(); }
bool has(const size_t &at) const { return size() > at; }
value at(const size_t &at) const;
value operator[](const size_t &at) const;
args(const unsigned &argc, JS::Value *const &argv);
@ -47,6 +48,13 @@ args::args(const unsigned &argc,
inline value
args::operator[](const size_t &at)
const
{
return length() > at? JS::CallArgs::operator[](at) : value{};
}
inline value
args::at(const size_t &at)
const
{
if(unlikely(length() <= at))
throw range_error("Missing required argument #%zu", at);