core: remove old repr system, enable newer one. Close #3109.
This commit is contained in:
Graydon Hoare
parent
6c83fe4c24
commit
7ab66a46b7
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@ -32,12 +32,12 @@ pub trait MovePtr {
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/// Helper function for alignment calculation.
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#[inline(always)]
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fn align(size: uint, align: uint) -> uint {
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pub fn align(size: uint, align: uint) -> uint {
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((size + align) - 1u) & !(align - 1u)
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}
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/// Adaptor to wrap around visitors implementing MovePtr.
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struct MovePtrAdaptor<V: TyVisitor MovePtr> {
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pub struct MovePtrAdaptor<V: TyVisitor MovePtr> {
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inner: V
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}
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pub fn MovePtrAdaptor<V: TyVisitor MovePtr>(v: V) -> MovePtrAdaptor<V> {
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@ -17,27 +17,18 @@ More runtime type reflection
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#[forbid(deprecated_mode)];
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#[forbid(deprecated_pattern)];
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use dvec::DVec;
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use io::{Writer, WriterUtil};
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use libc::c_void;
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use sys::TypeDesc;
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use to_str::ToStr;
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use cast::transmute;
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use intrinsic::{TyDesc, TyVisitor, visit_tydesc};
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use reflect::{MovePtr, MovePtrAdaptor};
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use reflect::{MovePtr, MovePtrAdaptor, align};
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use vec::UnboxedVecRepr;
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use vec::raw::{VecRepr, SliceRepr};
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pub use managed::raw::BoxRepr;
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use managed::raw::BoxHeaderRepr;
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/// Helpers
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/// Helper function for alignment calculation.
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#[inline(always)]
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fn align(size: uint, align: uint) -> uint {
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((size + align) - 1) & !(align - 1)
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}
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trait EscapedCharWriter {
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fn write_escaped_char(ch: char);
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}
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@ -130,11 +121,11 @@ impl char : Repr {
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// New implementation using reflect::MovePtr
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struct ReprVisitor {
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pub struct ReprVisitor {
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mut ptr: *c_void,
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writer: @Writer
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}
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fn ReprVisitor(ptr: *c_void, writer: @Writer) -> ReprVisitor {
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pub fn ReprVisitor(ptr: *c_void, writer: @Writer) -> ReprVisitor {
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ReprVisitor { ptr: ptr, writer: writer }
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}
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@ -458,7 +449,7 @@ impl ReprVisitor : TyVisitor {
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fn visit_closure_ptr(_ck: uint) -> bool { true }
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}
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pub fn write_repr2<T>(writer: @Writer, object: &T) {
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pub fn write_repr<T>(writer: @Writer, object: &T) {
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let ptr = ptr::to_unsafe_ptr(object) as *c_void;
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let tydesc = intrinsic::get_tydesc::<T>();
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let mut u = ReprVisitor(ptr, writer);
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@ -467,545 +458,57 @@ pub fn write_repr2<T>(writer: @Writer, object: &T) {
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}
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#[test]
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fn test_repr2() {
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repr::write_repr2(io::stdout(), &10);
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io::println("");
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repr::write_repr2(io::stdout(), &true);
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io::println("");
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repr::write_repr2(io::stdout(), &false);
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io::println("");
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repr::write_repr2(io::stdout(), &1.234);
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io::println("");
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repr::write_repr2(io::stdout(), &(&"hello"));
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io::println("");
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repr::write_repr2(io::stdout(), &(@"hello"));
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io::println("");
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repr::write_repr2(io::stdout(), &(~"he\u10f3llo"));
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io::println("");
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repr::write_repr2(io::stdout(), &(@10));
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io::println("");
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repr::write_repr2(io::stdout(), &(@mut 10));
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io::println("");
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repr::write_repr2(io::stdout(), &(~10));
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io::println("");
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repr::write_repr2(io::stdout(), &(~mut 10));
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io::println("");
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repr::write_repr2(io::stdout(), &(&10));
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io::println("");
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fn test_repr() {
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fn exact_test<T>(t: &T, e:&str) {
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let s : &str = io::with_str_writer(|w| repr::write_repr(w, t));
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if s != e {
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error!("expected '%s', got '%s'",
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e, s);
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}
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assert s == e;
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}
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exact_test(&10, "10");
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exact_test(&true, "true");
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exact_test(&false, "false");
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exact_test(&1.234, "1.2340");
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exact_test(&(&"hello"), "\"hello\"");
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exact_test(&(@"hello"), "@\"hello\"");
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exact_test(&(~"he\u10f3llo"), "~\"he\\u10f3llo\"");
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// FIXME #4210: the mut fields are a bit off here.
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exact_test(&(@10), "@10");
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exact_test(&(@mut 10), "@10");
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exact_test(&(~10), "~10");
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exact_test(&(~mut 10), "~mut 10");
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exact_test(&(&10), "&10");
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let mut x = 10;
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repr::write_repr2(io::stdout(), &(&mut x));
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io::println("");
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repr::write_repr2(io::stdout(), &(ptr::to_unsafe_ptr(&10) as *int));
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io::println("");
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repr::write_repr2(io::stdout(), &(@[1,2,3,4,5,6,7,8]));
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io::println("");
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repr::write_repr2(io::stdout(), &(@[1u8,2u8,3u8,4u8]));
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io::println("");
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repr::write_repr2(io::stdout(), &(@["hi", "there"]));
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io::println("");
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repr::write_repr2(io::stdout(), &(~["hi", "there"]));
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io::println("");
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repr::write_repr2(io::stdout(), &(&["hi", "there"]));
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io::println("");
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repr::write_repr2(io::stdout(), &({a:10, b:1.234}));
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io::println("");
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repr::write_repr2(io::stdout(), &(@{a:10, b:1.234}));
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io::println("");
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repr::write_repr2(io::stdout(), &(~{a:10, b:1.234}));
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io::println("");
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exact_test(&(&mut x), "&mut 10");
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exact_test(&(@[1,2,3,4,5,6,7,8]),
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"@[1, 2, 3, 4, 5, 6, 7, 8]");
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exact_test(&(@[1u8,2u8,3u8,4u8]),
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"@[1, 2, 3, 4]");
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exact_test(&(@["hi", "there"]),
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"@[\"hi\", \"there\"]");
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exact_test(&(~["hi", "there"]),
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"~[\"hi\", \"there\"]");
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exact_test(&(&["hi", "there"]),
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"&[\"hi\", \"there\"]");
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exact_test(&({a:10, b:1.234}),
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"{a: 10, b: 1.2340}");
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exact_test(&(@{a:10, b:1.234}),
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"@{a: 10, b: 1.2340}");
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exact_test(&(~{a:10, b:1.234}),
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"~{a: 10, b: 1.2340}");
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exact_test(&(10_u8, ~"hello"),
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"(10, ~\"hello\")");
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exact_test(&(10_u16, ~"hello"),
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"(10, ~\"hello\")");
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exact_test(&(10_u32, ~"hello"),
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"(10, ~\"hello\")");
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exact_test(&(10_u64, ~"hello"),
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"(10, ~\"hello\")");
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}
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// Old non-factored implementation, transitional...
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#[deriving_eq]
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enum EnumVisitState {
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PreVariant, // We're before the variant we're interested in.
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InVariant, // We're inside the variant we're interested in.
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PostVariant, // We're after the variant we're interested in.
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Degenerate // This is a degenerate enum (exactly 1 variant)
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}
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struct EnumState {
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end_ptr: *c_void,
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state: EnumVisitState
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}
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/// XXX: This should not use a boxed writer!
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struct ReprPrinter {
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mut ptr: *c_void,
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writer: @Writer, // XXX: This should not use a boxed trait.
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enum_stack: DVec<EnumState>
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}
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/// FIXME (issue #3462): This is horrible.
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struct ReprPrinterWrapper {
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printer: @ReprPrinter
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}
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impl ReprPrinter {
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#[inline(always)]
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fn align(n: uint) {
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unsafe {
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self.ptr = transmute(align(self.ptr as uint, n));
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}
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}
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#[inline(always)]
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fn bump(n: uint) {
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unsafe {
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self.ptr = transmute(self.ptr as uint + n);
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}
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}
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#[inline(always)]
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fn log_simple<T:Repr>() -> bool {
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unsafe {
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self.align(sys::min_align_of::<T>());
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let value_addr: &T = transmute(copy self.ptr);
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value_addr.write_repr(self.writer);
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self.bump(sys::size_of::<T>());
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true
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}
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}
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}
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impl ReprPrinterWrapper {
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fn visit_estr() -> bool {
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unsafe {
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self.printer.writer.write_char('"');
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let vec_repr_ptr: **VecRepr = transmute(copy self.printer.ptr);
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let vec_repr = *vec_repr_ptr;
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let data_ptr = ptr::to_unsafe_ptr(&(*vec_repr).unboxed.data);
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let slice: &str = transmute((data_ptr, (*vec_repr).unboxed.fill));
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for str::chars_each(slice) |ch| {
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self.printer.writer.write_escaped_char(ch);
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}
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self.printer.writer.write_char('"');
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let ptr_size = sys::size_of::<*c_void>();
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self.printer.ptr = transmute(self.printer.ptr as uint + ptr_size);
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true
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}
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}
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fn visit_self_describing_heap_alloc(mtbl: uint) -> bool {
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unsafe {
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if mtbl != 1 { self.printer.writer.write_str("mut "); }
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let box_ptr: **BoxRepr = transmute(copy self.printer.ptr);
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let box = *box_ptr;
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self.printer.ptr = transmute(&(*box).data);
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intrinsic::visit_tydesc((*box).header.type_desc,
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self as @TyVisitor);
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let box_size = sys::size_of::<*BoxRepr>();
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self.printer.ptr = transmute(box_ptr as uint + box_size);
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true
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}
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}
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fn visit_ptr_contents(mtbl: uint, inner: *TyDesc) -> bool {
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unsafe {
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if mtbl != 1 { self.printer.writer.write_str("mut "); }
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let data_ptr: **c_void = transmute(copy self.printer.ptr);
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if *data_ptr == ptr::null() {
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self.printer.writer.write_str("null");
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} else {
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self.printer.ptr = *data_ptr;
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intrinsic::visit_tydesc(inner, self as @TyVisitor);
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}
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let ptr_size = sys::size_of::<*c_void>();
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self.printer.ptr = transmute(data_ptr as uint + ptr_size);
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true
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}
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}
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fn visit_evec(mtbl: uint, inner: *TyDesc) -> bool {
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unsafe {
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self.printer.writer.write_char('[');
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self.printer.align(sys::min_align_of::<*c_void>());
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let vec_repr_ptr: **VecRepr = transmute(copy self.printer.ptr);
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let old_ptr = self.printer.ptr as uint;
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let vec_repr: *VecRepr = *vec_repr_ptr;
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self.printer.ptr = transmute(&(*vec_repr).unboxed.data);
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let end_ptr: *c_void = transmute(self.printer.ptr as uint +
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(*vec_repr).unboxed.fill);
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let sys_tydesc: *TypeDesc = transmute(copy inner);
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let alignment = (*sys_tydesc).align;
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let mut first = true;
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loop {
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self.printer.align(alignment);
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if self.printer.ptr >= end_ptr { break; }
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if first {
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self.printer.writer.write_char(' ');
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if mtbl != 1 { self.printer.writer.write_str("mut "); }
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} else {
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self.printer.writer.write_str(", ");
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}
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intrinsic::visit_tydesc(inner, self as @TyVisitor);
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first = false;
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}
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if !first {
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self.printer.writer.write_char(' ');
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} else if mtbl != 1 {
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self.printer.writer.write_str("mut");
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}
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self.printer.writer.write_char(']');
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self.printer.ptr = transmute(old_ptr + sys::size_of::<int>());
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true
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}
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}
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}
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impl ReprPrinterWrapper : TyVisitor {
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fn visit_bot() -> bool {
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self.printer.bump(1);
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self.printer.writer.write_str("fail");
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true
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}
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fn visit_nil() -> bool { self.printer.log_simple::<()>() }
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fn visit_bool() -> bool { self.printer.log_simple::<bool>() }
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// Numbers
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fn visit_int() -> bool { self.printer.log_simple::<int>() }
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fn visit_i8() -> bool { self.printer.log_simple::<i8>() }
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fn visit_i16() -> bool { self.printer.log_simple::<i16>() }
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fn visit_i32() -> bool { self.printer.log_simple::<i32>() }
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fn visit_i64() -> bool { self.printer.log_simple::<i64>() }
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fn visit_uint() -> bool { self.printer.log_simple::<uint>() }
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fn visit_u8() -> bool { self.printer.log_simple::<u8>() }
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fn visit_u16() -> bool { self.printer.log_simple::<u16>() }
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fn visit_u32() -> bool { self.printer.log_simple::<u32>() }
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fn visit_u64() -> bool { self.printer.log_simple::<u64>() }
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fn visit_float() -> bool { self.printer.log_simple::<float>() }
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fn visit_f32() -> bool { self.printer.log_simple::<f32>() }
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fn visit_f64() -> bool { self.printer.log_simple::<f64>() }
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fn visit_char() -> bool { self.printer.log_simple::<char>() }
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fn visit_str() -> bool { true }
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// Strings
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fn visit_estr_box() -> bool {
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self.printer.writer.write_char('@');
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self.visit_estr()
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}
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fn visit_estr_uniq() -> bool {
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self.printer.writer.write_char('~');
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self.visit_estr()
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}
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fn visit_estr_slice() -> bool {
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unsafe {
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self.printer.writer.write_char('"');
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let slice_ptr: *&str = transmute(copy self.printer.ptr);
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let slice = *slice_ptr;
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for str::chars_each(slice) |ch| {
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self.printer.writer.write_escaped_char(ch);
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}
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self.printer.writer.write_char('"');
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let slice_sz = sys::size_of::<(*char,uint)>();
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self.printer.ptr = transmute(self.printer.ptr as uint + slice_sz);
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true
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}
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}
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fn visit_estr_fixed(_n: uint, _sz: uint, _align: uint) -> bool { true }
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// Pointers
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fn visit_box(mtbl: uint, _inner: *TyDesc) -> bool {
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self.printer.writer.write_char('@');
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self.visit_self_describing_heap_alloc(mtbl)
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}
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fn visit_uniq(mtbl: uint, _inner: *TyDesc) -> bool {
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self.printer.writer.write_char('~');
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self.visit_self_describing_heap_alloc(mtbl)
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}
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fn visit_ptr(mtbl: uint, inner: *TyDesc) -> bool {
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self.printer.writer.write_char('*');
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self.visit_ptr_contents(mtbl, inner)
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}
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fn visit_rptr(mtbl: uint, inner: *TyDesc) -> bool {
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self.printer.writer.write_char('&');
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self.visit_ptr_contents(mtbl, inner)
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}
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// Vectors
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fn visit_vec(_mtbl: uint, _inner: *TyDesc) -> bool { true }
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fn visit_unboxed_vec(_mtbl: uint, _inner: *TyDesc) -> bool { true }
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fn visit_evec_box(mtbl: uint, inner: *TyDesc) -> bool {
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self.printer.writer.write_char('@');
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self.visit_evec(mtbl, inner)
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}
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fn visit_evec_uniq(mtbl: uint, inner: *TyDesc) -> bool {
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self.printer.writer.write_char('~');
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self.visit_evec(mtbl, inner)
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}
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fn visit_evec_slice(mtbl: uint, inner: *TyDesc) -> bool {
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unsafe {
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self.printer.writer.write_str("&[");
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self.printer.align(sys::min_align_of::<(*c_void,uint)>());
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let slice_ptr: *(*c_void,uint) = transmute(copy self.printer.ptr);
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let (data, fill) = *slice_ptr;
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self.printer.ptr = data;
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let end_ptr: *c_void = transmute(self.printer.ptr as uint + fill);
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let sys_tydesc: *TypeDesc = transmute(copy inner);
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let alignment = (*sys_tydesc).align;
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let mut first = true;
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loop {
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self.printer.align(alignment);
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if self.printer.ptr >= end_ptr { break; }
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if first {
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self.printer.writer.write_char(' ');
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if mtbl != 1 { self.printer.writer.write_str("mut "); }
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} else {
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self.printer.writer.write_str(", ");
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}
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intrinsic::visit_tydesc(inner, self as @TyVisitor);
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first = false;
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}
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if !first {
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||||
self.printer.writer.write_char(' ');
|
||||
} else if mtbl != 1 {
|
||||
self.printer.writer.write_str("mut");
|
||||
}
|
||||
self.printer.writer.write_char(']');
|
||||
let slice_size = sys::size_of::<(uint, *c_void)>();
|
||||
self.printer.ptr = transmute(slice_ptr as uint + slice_size);
|
||||
true
|
||||
}
|
||||
}
|
||||
fn visit_evec_fixed(n: uint, sz: uint, align: uint, mtbl: uint,
|
||||
inner: *TyDesc) -> bool {
|
||||
unsafe {
|
||||
self.printer.writer.write_char('[');
|
||||
self.printer.align(align);
|
||||
let end_ptr: *c_void = transmute(self.printer.ptr as uint + sz);
|
||||
for uint::range(0, n) |i| {
|
||||
self.printer.align(align);
|
||||
if i == 0 {
|
||||
self.printer.writer.write_char(' ');
|
||||
if mtbl != 1 { self.printer.writer.write_str("mut "); }
|
||||
} else {
|
||||
self.printer.writer.write_str(", ");
|
||||
}
|
||||
intrinsic::visit_tydesc(inner, self as @TyVisitor);
|
||||
}
|
||||
if n > 0 {
|
||||
self.printer.writer.write_char(' ');
|
||||
} else if mtbl != 1 {
|
||||
self.printer.writer.write_str("mut");
|
||||
}
|
||||
self.printer.writer.write_char(']');
|
||||
self.printer.ptr = end_ptr;
|
||||
true
|
||||
}
|
||||
}
|
||||
|
||||
// Records
|
||||
|
||||
fn visit_enter_rec(_n_fields: uint, _sz: uint, align: uint) -> bool {
|
||||
self.printer.writer.write_char('{');
|
||||
self.printer.align(align);
|
||||
true
|
||||
}
|
||||
fn visit_rec_field(i: uint, name: &str, mtbl: uint, inner: *TyDesc) ->
|
||||
bool {
|
||||
if i != 0 {
|
||||
self.printer.writer.write_str(", ");
|
||||
} else {
|
||||
self.printer.writer.write_char(' ');
|
||||
}
|
||||
if mtbl != 1 { self.printer.writer.write_str("mut "); }
|
||||
self.printer.writer.write_str(name);
|
||||
self.printer.writer.write_str(": ");
|
||||
intrinsic::visit_tydesc(inner, self as @TyVisitor);
|
||||
true
|
||||
}
|
||||
fn visit_leave_rec(n_fields: uint, _sz: uint, _align: uint) -> bool {
|
||||
if n_fields > 0 { self.printer.writer.write_char(' '); }
|
||||
self.printer.writer.write_char('}');
|
||||
true
|
||||
}
|
||||
|
||||
// Structs
|
||||
|
||||
fn visit_enter_class(_n_fields: uint, _sz: uint, align: uint) -> bool {
|
||||
self.printer.writer.write_char('{');
|
||||
self.printer.align(align);
|
||||
true
|
||||
}
|
||||
fn visit_class_field(i: uint, name: &str, mtbl: uint, inner: *TyDesc) ->
|
||||
bool {
|
||||
if i != 0 {
|
||||
self.printer.writer.write_str(", ");
|
||||
} else {
|
||||
self.printer.writer.write_char(' ');
|
||||
}
|
||||
if mtbl != 1 { self.printer.writer.write_str("mut "); }
|
||||
self.printer.writer.write_str(name);
|
||||
self.printer.writer.write_str(": ");
|
||||
intrinsic::visit_tydesc(inner, self as @TyVisitor);
|
||||
true
|
||||
}
|
||||
fn visit_leave_class(n_fields: uint, _sz: uint, _align: uint) -> bool {
|
||||
if n_fields > 0 { self.printer.writer.write_char(' '); }
|
||||
self.printer.writer.write_char('}');
|
||||
true
|
||||
}
|
||||
|
||||
// Tuples
|
||||
|
||||
fn visit_enter_tup(_n_fields: uint, _sz: uint, align: uint) -> bool {
|
||||
self.printer.writer.write_char('(');
|
||||
self.printer.align(align);
|
||||
true
|
||||
}
|
||||
fn visit_tup_field(i: uint, inner: *TyDesc) -> bool {
|
||||
if i != 0 { self.printer.writer.write_str(", "); }
|
||||
intrinsic::visit_tydesc(inner, self as @TyVisitor);
|
||||
true
|
||||
}
|
||||
fn visit_leave_tup(_n_fields: uint, _sz: uint, _align: uint) -> bool {
|
||||
self.printer.writer.write_char(')');
|
||||
true
|
||||
}
|
||||
|
||||
// Enums
|
||||
|
||||
fn visit_enter_enum(n_variants: uint, sz: uint, align: uint) -> bool {
|
||||
unsafe {
|
||||
self.printer.align(align);
|
||||
|
||||
// Write in the location of the end of this enum.
|
||||
let end_ptr = transmute(self.printer.ptr as uint + sz);
|
||||
let state = if n_variants == 1 { Degenerate } else { PreVariant };
|
||||
let new_state = EnumState { end_ptr: end_ptr, state: state };
|
||||
self.printer.enum_stack.push(new_state);
|
||||
|
||||
true
|
||||
}
|
||||
}
|
||||
|
||||
fn visit_enter_enum_variant(_variant: uint,
|
||||
disr_val: int,
|
||||
_n_fields: uint,
|
||||
name: &str) -> bool {
|
||||
unsafe {
|
||||
let stack = &self.printer.enum_stack;
|
||||
let mut enum_state = stack.last();
|
||||
match enum_state.state {
|
||||
PreVariant => {
|
||||
let disr_ptr = self.printer.ptr as *int;
|
||||
if *disr_ptr == disr_val {
|
||||
enum_state.state = InVariant;
|
||||
self.printer.writer.write_str(name);
|
||||
self.printer.bump(sys::size_of::<int>());
|
||||
stack.set_elt(stack.len() - 1, enum_state);
|
||||
}
|
||||
}
|
||||
Degenerate => {
|
||||
self.printer.writer.write_str(name);
|
||||
}
|
||||
InVariant | PostVariant => {}
|
||||
}
|
||||
true
|
||||
}
|
||||
}
|
||||
|
||||
fn visit_enum_variant_field(i: uint, inner: *TyDesc) -> bool {
|
||||
match self.printer.enum_stack.last().state {
|
||||
InVariant | Degenerate => {
|
||||
if i == 0 {
|
||||
self.printer.writer.write_char('(');
|
||||
} else {
|
||||
self.printer.writer.write_str(", ");
|
||||
}
|
||||
|
||||
intrinsic::visit_tydesc(inner, self as @TyVisitor);
|
||||
}
|
||||
PreVariant | PostVariant => {}
|
||||
}
|
||||
true
|
||||
}
|
||||
|
||||
fn visit_leave_enum_variant(_variant: uint,
|
||||
_disr_val: int,
|
||||
n_fields: uint,
|
||||
_name: &str) -> bool {
|
||||
let stack = &self.printer.enum_stack;
|
||||
let mut enum_state = stack.last();
|
||||
match enum_state.state {
|
||||
InVariant => {
|
||||
if n_fields >= 1 { self.printer.writer.write_char(')'); }
|
||||
enum_state.state = PostVariant;
|
||||
stack.set_elt(stack.len() - 1, enum_state);
|
||||
}
|
||||
Degenerate => {
|
||||
if n_fields >= 1 { self.printer.writer.write_char(')'); }
|
||||
}
|
||||
PreVariant | PostVariant => {}
|
||||
}
|
||||
true
|
||||
}
|
||||
|
||||
fn visit_leave_enum(_n_variants: uint, _sz: uint, _align: uint) -> bool {
|
||||
self.printer.ptr = self.printer.enum_stack.pop().end_ptr;
|
||||
true
|
||||
}
|
||||
|
||||
// Functions
|
||||
|
||||
fn visit_enter_fn(_purity: uint, proto: uint,
|
||||
_n_inputs: uint, _retstyle: uint) -> bool {
|
||||
self.printer.align(sys::min_align_of::<(uint,uint)>());
|
||||
match proto {
|
||||
2u => self.printer.writer.write_char('~'),
|
||||
3u => self.printer.writer.write_char('@'),
|
||||
4u => self.printer.writer.write_char('&'),
|
||||
_ => {}
|
||||
}
|
||||
self.printer.writer.write_str("fn");
|
||||
true
|
||||
}
|
||||
|
||||
fn visit_fn_input(_i: uint, _mode: uint, _inner: *TyDesc) -> bool { true }
|
||||
fn visit_fn_output(_retstyle: uint, _inner: *TyDesc) -> bool { true }
|
||||
fn visit_leave_fn(_purity: uint, _proto: uint,
|
||||
_n_inputs: uint, _retstyle: uint) -> bool { true }
|
||||
|
||||
// Others
|
||||
|
||||
fn visit_trait() -> bool { self.printer.writer.write_str("@trait"); true }
|
||||
fn visit_var() -> bool { true }
|
||||
fn visit_var_integral() -> bool { true }
|
||||
fn visit_param(_i: uint) -> bool { true }
|
||||
fn visit_self() -> bool { true }
|
||||
fn visit_type() -> bool { true }
|
||||
fn visit_opaque_box() -> bool {
|
||||
self.printer.writer.write_char('@');
|
||||
self.visit_self_describing_heap_alloc(1)
|
||||
}
|
||||
fn visit_constr(_inner: *TyDesc) -> bool { true }
|
||||
fn visit_closure_ptr(_ck: uint) -> bool { true }
|
||||
}
|
||||
|
||||
pub fn write_repr<T>(writer: @Writer, object: &T) {
|
||||
unsafe {
|
||||
let ptr = ptr::to_unsafe_ptr(object) as *c_void;
|
||||
let tydesc = sys::get_type_desc::<T>();
|
||||
let tydesc = cast::transmute(move tydesc);
|
||||
|
||||
let repr_printer = @ReprPrinter {
|
||||
ptr: ptr,
|
||||
writer: writer,
|
||||
enum_stack: DVec()
|
||||
};
|
||||
|
||||
let wrapper = ReprPrinterWrapper { printer: repr_printer };
|
||||
intrinsic::visit_tydesc(tydesc, wrapper as @TyVisitor);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue