71 lines
1.9 KiB
Rust
71 lines
1.9 KiB
Rust
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/**
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* Unsafe debugging functions for inspecting values.
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*
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* Your RUST_LOG environment variable must contain "stdlib" for any debug
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* logging.
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*/
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#[abi = "cdecl"]
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native mod rustrt {
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fn debug_tydesc(td: *sys::type_desc);
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fn debug_opaque<T>(td: *sys::type_desc, x: T);
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fn debug_box<T>(td: *sys::type_desc, x: @T);
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fn debug_tag<T>(td: *sys::type_desc, x: T);
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fn debug_obj<T>(td: *sys::type_desc, x: T, nmethods: uint, nbytes: uint);
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fn debug_fn<T>(td: *sys::type_desc, x: T);
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fn debug_ptrcast<T, U>(td: *sys::type_desc, x: @T) -> @U;
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}
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fn debug_tydesc<T>() {
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rustrt::debug_tydesc(sys::get_type_desc::<T>());
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}
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fn debug_opaque<T>(x: T) {
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rustrt::debug_opaque::<T>(sys::get_type_desc::<T>(), x);
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}
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fn debug_box<T>(x: @T) {
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rustrt::debug_box::<T>(sys::get_type_desc::<T>(), x);
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}
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fn debug_tag<T>(x: T) {
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rustrt::debug_tag::<T>(sys::get_type_desc::<T>(), x);
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}
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/**
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* `nmethods` is the number of methods we expect the object to have. The
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* runtime will print this many words of the obj vtbl).
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*
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* `nbytes` is the number of bytes of body data we expect the object to have.
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* The runtime will print this many bytes of the obj body. You probably want
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* this to at least be 4u, since an implicit captured tydesc pointer sits in
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* the front of any obj's data tuple.x
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*/
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fn debug_obj<T>(x: T, nmethods: uint, nbytes: uint) {
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rustrt::debug_obj::<T>(sys::get_type_desc::<T>(), x, nmethods, nbytes);
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}
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fn debug_fn<T>(x: T) {
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rustrt::debug_fn::<T>(sys::get_type_desc::<T>(), x);
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}
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unsafe fn ptr_cast<T, U>(x: @T) -> @U {
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ret rustrt::debug_ptrcast::<T, U>(sys::get_type_desc::<T>(), x);
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}
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fn refcount<T>(a: @T) -> uint unsafe {
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let p: *uint = unsafe::reinterpret_cast(a);
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ret *p;
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}
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// Local Variables:
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// mode: rust;
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// fill-column: 78;
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// indent-tabs-mode: nil
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// c-basic-offset: 4
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// buffer-file-coding-system: utf-8-unix
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// End:
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