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Add a little pointer-cast helper to dbg.

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This commit is contained in:
Roy Frostig 2010-09-06 23:24:01 -07:00
parent 974092c526
commit cf62b54028
2 changed files with 18 additions and 0 deletions
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5
src/lib/dbg.rs
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@ -14,6 +14,7 @@ native "rust" mod rustrt {
fn debug_tag[T](&T x);
fn debug_obj[T](&T x, uint nmethods, uint nbytes);
fn debug_fn[T](&T x);
fn debug_ptrcast[T, U](@T x) -> @U;
}
fn debug_vec[T](vec[T] v) {
@ -52,3 +53,7 @@ fn debug_obj[T](&T x, uint nmethods, uint nbytes) {
fn debug_fn[T](&T x) {
rustrt.debug_fn[T](x);
}
fn ptr_cast[T, U](@T x) -> @U {
ret rustrt.debug_ptrcast[T, U](x);
}

13
src/rt/rust_builtin.cpp
View File

@ -340,6 +340,19 @@ debug_fn(rust_task *task, type_desc *t, rust_fn *fn)
task->log(rust_log::STDLIB, " closure at 0x%" PRIxPTR, fn->closure);
}
extern "C" CDECL void *
debug_ptrcast(rust_task *task,
type_desc *from_ty,
type_desc *to_ty,
void *ptr)
{
task->log(rust_log::STDLIB, "debug_ptrcast from");
debug_tydesc_helper(task, from_ty);
task->log(rust_log::STDLIB, "to");
debug_tydesc_helper(task, to_ty);
return ptr;
}
//
// Local Variables: