The following code (called with a valid context) gives a segfault:
JS_GetPropertyStr(context, JS_UNDEFINED, "test");
After looking at the stacktrace in gdb, this looks like a bug:
#0 __strlen_avx2 () at ../sysdeps/x86_64/multiarch/strlen-avx2.S:62
#1 0x00007ffffc552144 in JS_NewString (ctx=ctx@entry=0xcea530, str=0x0) at
third-party/quickjs.c:3756
#2 0x00007ffffc5482bf in build_backtrace (ctx=ctx@entry=0xcea530,
error_obj=..., filename=filename@entry=0x0, line_num=line_num@entry=0,
backtrace_flags=<optimized out>, backtrace_flags@entry=0) at
third-party/quickjs.c:6236
#3 0x00007ffffc548676 in JS_ThrowError2 (ctx=0xcea530,
error_num=<optimized out>, fmt=<optimized out>, ap=<optimized out>,
add_backtrace=1) at third-party/quickjs.c:6279
#4 0x00007ffffc548cbc in JS_ThrowTypeError (ctx=<optimized out>,
fmt=fmt@entry=0x7ffffc5af1a5 "value has no property") at
third-party/quickjs.c:6315
#5 0x00007ffffc545d72 in JS_GetPropertyInternal (ctx=ctx@entry=0xcea530,
obj=..., prop=prop@entry=439, this_obj=..., throw_ref_error=0) at
third-party/quickjs.c:6672
#6 0x00007ffffc57bbc9 in JS_GetProperty (prop=439, this_obj=...,
ctx=0xcea530) at third-party/quickjs.h:690
#7 JS_GetPropertyStr (ctx=ctx@entry=0xcea530, this_obj=...,
prop=prop@entry=0x7ffffc5a17e0
"test") at third-party/quickjs.c:7547
Because it looks like QuickJS tries to throw an exception ("value has no
property") and crashes instead.
Cheers,
Petter
