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8265a7531f
When `RUBY_DEBUG` is set, accessing a class in an invalid object will cause a breakpoint trap instead of a segfault on some implementations.
28 lines
625 B
C
28 lines
625 B
C
#include <ruby.h>
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#if SIZEOF_LONG == SIZEOF_VOIDP
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# define NUM2PTR(x) (void *)NUM2ULONG(x)
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#elif SIZEOF_LONG_LONG == SIZEOF_VOIDP
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# define NUM2PTR(x) (void *)NUM2ULL(x)
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#endif
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static VALUE
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invalid_call(VALUE obj, VALUE address)
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{
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typedef VALUE (*func_type)(VALUE);
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return (*(func_type)NUM2PTR(address))(obj);
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}
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static VALUE
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invalid_access(VALUE obj, VALUE address)
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{
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return *(VALUE *)NUM2PTR(address) == obj ? Qtrue : Qfalse;
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}
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void
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Init_invalid(VALUE mBug)
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{
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rb_define_singleton_method(mBug, "invalid_call", invalid_call, 1);
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rb_define_singleton_method(mBug, "invalid_access", invalid_access, 1);
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}
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