remove antiquated reflect test rather than bring it up to date
This commit is contained in:
Niko Matsakis
parent
852a49fd9c
commit
96139bf1d6
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@ -1,627 +0,0 @@
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// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// ignore-fast
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#[feature(managed_boxes)];
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use std::cell::RefCell;
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use std::libc::c_void;
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use std::ptr;
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use std::mem;
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use std::unstable::intrinsics::{TyDesc, get_tydesc, visit_tydesc, TyVisitor, Disr, Opaque};
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use std::unstable::raw::Vec;
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#[doc = "High-level interfaces to `std::unstable::intrinsics::visit_ty` reflection system."]
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/// Trait for visitor that wishes to reflect on data.
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trait movable_ptr {
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fn move_ptr(&mut self, adjustment: |*c_void| -> *c_void);
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}
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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) - 1u) & !(align - 1u)
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}
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struct ptr_visit_adaptor<V>(Inner<V>);
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impl<V:TyVisitor + movable_ptr> ptr_visit_adaptor<V> {
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fn inner<'a>(&'a mut self) -> &'a mut V {
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let ptr_visit_adaptor(ref mut i) = *self;
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&mut i.inner
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}
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}
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impl<V:TyVisitor + movable_ptr> ptr_visit_adaptor<V> {
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#[inline(always)]
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pub fn bump(&mut self, sz: uint) {
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self.inner().move_ptr(|p| ((p as uint) + sz) as *c_void)
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}
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#[inline(always)]
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pub fn align(&mut self, a: uint) {
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self.inner().move_ptr(|p| align(p as uint, a) as *c_void)
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}
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#[inline(always)]
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pub fn align_to<T>(&mut self) {
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self.align(mem::min_align_of::<T>());
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}
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#[inline(always)]
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pub fn bump_past<T>(&mut self) {
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self.bump(mem::size_of::<T>());
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}
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}
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impl<V:TyVisitor + movable_ptr> TyVisitor for ptr_visit_adaptor<V> {
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fn visit_bot(&mut self) -> bool {
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self.align_to::<()>();
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if ! self.inner().visit_bot() { return false; }
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self.bump_past::<()>();
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true
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}
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fn visit_nil(&mut self) -> bool {
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self.align_to::<()>();
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if ! self.inner().visit_nil() { return false; }
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self.bump_past::<()>();
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true
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}
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fn visit_bool(&mut self) -> bool {
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self.align_to::<bool>();
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if ! self.inner().visit_bool() { return false; }
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self.bump_past::<bool>();
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true
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}
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fn visit_int(&mut self) -> bool {
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self.align_to::<int>();
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if ! self.inner().visit_int() { return false; }
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self.bump_past::<int>();
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true
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}
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fn visit_i8(&mut self) -> bool {
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self.align_to::<i8>();
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if ! self.inner().visit_i8() { return false; }
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self.bump_past::<i8>();
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true
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}
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fn visit_i16(&mut self) -> bool {
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self.align_to::<i16>();
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if ! self.inner().visit_i16() { return false; }
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self.bump_past::<i16>();
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true
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}
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fn visit_i32(&mut self) -> bool {
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self.align_to::<i32>();
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if ! self.inner().visit_i32() { return false; }
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self.bump_past::<i32>();
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true
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}
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fn visit_i64(&mut self) -> bool {
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self.align_to::<i64>();
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if ! self.inner().visit_i64() { return false; }
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self.bump_past::<i64>();
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true
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}
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fn visit_uint(&mut self) -> bool {
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self.align_to::<uint>();
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if ! self.inner().visit_uint() { return false; }
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self.bump_past::<uint>();
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true
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}
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fn visit_u8(&mut self) -> bool {
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self.align_to::<u8>();
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if ! self.inner().visit_u8() { return false; }
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self.bump_past::<u8>();
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true
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}
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fn visit_u16(&mut self) -> bool {
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self.align_to::<u16>();
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if ! self.inner().visit_u16() { return false; }
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self.bump_past::<u16>();
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true
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}
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fn visit_u32(&mut self) -> bool {
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self.align_to::<u32>();
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if ! self.inner().visit_u32() { return false; }
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self.bump_past::<u32>();
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true
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}
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fn visit_u64(&mut self) -> bool {
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self.align_to::<u64>();
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if ! self.inner().visit_u64() { return false; }
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self.bump_past::<u64>();
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true
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}
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fn visit_f32(&mut self) -> bool {
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self.align_to::<f32>();
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if ! self.inner().visit_f32() { return false; }
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self.bump_past::<f32>();
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true
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}
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fn visit_f64(&mut self) -> bool {
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self.align_to::<f64>();
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if ! self.inner().visit_f64() { return false; }
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self.bump_past::<f64>();
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true
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}
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fn visit_char(&mut self) -> bool {
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self.align_to::<char>();
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if ! self.inner().visit_char() { return false; }
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self.bump_past::<char>();
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true
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}
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fn visit_estr_box(&mut self) -> bool {
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true
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}
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fn visit_estr_uniq(&mut self) -> bool {
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self.align_to::<~str>();
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if ! self.inner().visit_estr_uniq() { return false; }
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self.bump_past::<~str>();
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true
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}
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fn visit_estr_slice(&mut self) -> bool {
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self.align_to::<&'static str>();
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if ! self.inner().visit_estr_slice() { return false; }
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self.bump_past::<&'static str>();
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true
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}
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fn visit_estr_fixed(&mut self, n: uint,
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sz: uint,
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align: uint) -> bool {
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self.align(align);
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if ! self.inner().visit_estr_fixed(n, sz, align) { return false; }
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self.bump(sz);
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true
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}
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fn visit_box(&mut self, mtbl: uint, inner: *TyDesc) -> bool {
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self.align_to::<@u8>();
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if ! self.inner().visit_box(mtbl, inner) { return false; }
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self.bump_past::<@u8>();
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true
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}
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fn visit_uniq(&mut self, mtbl: uint, inner: *TyDesc) -> bool {
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self.align_to::<~u8>();
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if ! self.inner().visit_uniq(mtbl, inner) { return false; }
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self.bump_past::<~u8>();
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true
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}
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fn visit_ptr(&mut self, mtbl: uint, inner: *TyDesc) -> bool {
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self.align_to::<*u8>();
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if ! self.inner().visit_ptr(mtbl, inner) { return false; }
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self.bump_past::<*u8>();
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true
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}
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fn visit_rptr(&mut self, mtbl: uint, inner: *TyDesc) -> bool {
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self.align_to::<&'static u8>();
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if ! self.inner().visit_rptr(mtbl, inner) { return false; }
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self.bump_past::<&'static u8>();
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true
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}
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fn visit_unboxed_vec(&mut self, mtbl: uint, inner: *TyDesc) -> bool {
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self.align_to::<Vec<()>>();
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// FIXME (#3732): Inner really has to move its own pointers on this one.
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// or else possibly we could have some weird interface wherein we
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// read-off a word from inner's pointers, but the read-word has to
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// always be the same in all sub-pointers? Dubious.
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if ! self.inner().visit_vec(mtbl, inner) { return false; }
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true
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}
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fn visit_vec(&mut self, mtbl: uint, inner: *TyDesc) -> bool {
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self.align_to::<~[u8]>();
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if ! self.inner().visit_vec(mtbl, inner) { return false; }
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self.bump_past::<~[u8]>();
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true
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}
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fn visit_evec_box(&mut self, mtbl: uint, inner: *TyDesc) -> bool {
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true
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}
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fn visit_evec_uniq(&mut self, mtbl: uint, inner: *TyDesc) -> bool {
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self.align_to::<~[u8]>();
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if ! self.inner().visit_evec_uniq(mtbl, inner) { return false; }
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self.bump_past::<~[u8]>();
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true
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}
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fn visit_evec_slice(&mut self, mtbl: uint, inner: *TyDesc) -> bool {
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self.align_to::<&'static [u8]>();
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if ! self.inner().visit_evec_slice(mtbl, inner) { return false; }
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self.bump_past::<&'static [u8]>();
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true
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}
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fn visit_evec_fixed(&mut self, n: uint, sz: uint, align: uint,
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mtbl: uint, inner: *TyDesc) -> bool {
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self.align(align);
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if ! self.inner().visit_evec_fixed(n, sz, align, mtbl, inner) {
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return false;
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}
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self.bump(sz);
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true
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}
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fn visit_enter_rec(&mut self, n_fields: uint, sz: uint, align: uint) -> bool {
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self.align(align);
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if ! self.inner().visit_enter_rec(n_fields, sz, align) { return false; }
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true
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}
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fn visit_rec_field(&mut self, i: uint, name: &str,
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mtbl: uint, inner: *TyDesc) -> bool {
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if ! self.inner().visit_rec_field(i, name, mtbl, inner) { return false; }
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true
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}
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fn visit_leave_rec(&mut self, n_fields: uint, sz: uint, align: uint) -> bool {
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if ! self.inner().visit_leave_rec(n_fields, sz, align) { return false; }
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true
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}
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fn visit_enter_class(&mut self, name: &str, named_fields: bool, n_fields: uint, sz: uint,
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align: uint) -> bool {
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self.align(align);
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if ! self.inner().visit_enter_class(name, named_fields, n_fields, sz, align) {
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return false;
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}
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true
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}
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fn visit_class_field(&mut self, i: uint, name: &str, named: bool,
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mtbl: uint, inner: *TyDesc) -> bool {
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if ! self.inner().visit_class_field(i, name, named, mtbl, inner) {
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return false;
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}
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true
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}
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fn visit_leave_class(&mut self, name: &str, named_fields: bool, n_fields: uint, sz: uint,
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align: uint) -> bool {
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if ! self.inner().visit_leave_class(name, named_fields, n_fields, sz, align) {
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return false;
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}
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true
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}
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fn visit_enter_tup(&mut self, n_fields: uint, sz: uint, align: uint) -> bool {
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self.align(align);
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if ! self.inner().visit_enter_tup(n_fields, sz, align) { return false; }
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true
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}
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fn visit_tup_field(&mut self, i: uint, inner: *TyDesc) -> bool {
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if ! self.inner().visit_tup_field(i, inner) { return false; }
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true
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}
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fn visit_leave_tup(&mut self, n_fields: uint, sz: uint, align: uint) -> bool {
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if ! self.inner().visit_leave_tup(n_fields, sz, align) { return false; }
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true
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}
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fn visit_enter_fn(&mut self, purity: uint, proto: uint,
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n_inputs: uint, retstyle: uint) -> bool {
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if ! self.inner().visit_enter_fn(purity, proto, n_inputs, retstyle) {
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return false
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}
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true
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}
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fn visit_fn_input(&mut self, i: uint, mode: uint, inner: *TyDesc) -> bool {
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if ! self.inner().visit_fn_input(i, mode, inner) { return false; }
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true
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}
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fn visit_fn_output(&mut self, retstyle: uint, variadic: bool, inner: *TyDesc) -> bool {
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if ! self.inner().visit_fn_output(retstyle, variadic, inner) { return false; }
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true
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}
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fn visit_leave_fn(&mut self, purity: uint, proto: uint,
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n_inputs: uint, retstyle: uint) -> bool {
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if ! self.inner().visit_leave_fn(purity, proto, n_inputs, retstyle) {
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return false;
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}
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true
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}
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fn visit_enter_enum(&mut self, n_variants: uint,
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get_disr: extern unsafe fn(ptr: *Opaque) -> Disr,
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sz: uint, align: uint)
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-> bool {
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self.align(align);
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if ! self.inner().visit_enter_enum(n_variants, get_disr, sz, align) { return false; }
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true
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}
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fn visit_enter_enum_variant(&mut self, variant: uint,
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disr_val: Disr,
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n_fields: uint,
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name: &str) -> bool {
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if ! self.inner().visit_enter_enum_variant(variant, disr_val,
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n_fields, name) {
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return false;
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}
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true
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}
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fn visit_enum_variant_field(&mut self, i: uint, offset: uint, inner: *TyDesc) -> bool {
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if ! self.inner().visit_enum_variant_field(i, offset, inner) { return false; }
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true
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}
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fn visit_leave_enum_variant(&mut self, variant: uint,
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disr_val: Disr,
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n_fields: uint,
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name: &str) -> bool {
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if ! self.inner().visit_leave_enum_variant(variant, disr_val,
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n_fields, name) {
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return false;
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}
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true
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}
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fn visit_leave_enum(&mut self, n_variants: uint,
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get_disr: extern unsafe fn(ptr: *Opaque) -> Disr,
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sz: uint, align: uint)
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-> bool {
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if ! self.inner().visit_leave_enum(n_variants, get_disr, sz, align) { return false; }
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true
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}
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|
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fn visit_trait(&mut self, name: &str) -> bool {
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self.align_to::<~TyVisitor>();
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if ! self.inner().visit_trait(name) { return false; }
|
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self.bump_past::<~TyVisitor>();
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true
|
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}
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|
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fn visit_param(&mut self, i: uint) -> bool {
|
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if ! self.inner().visit_param(i) { return false; }
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true
|
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}
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|
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fn visit_self(&mut self) -> bool {
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self.align_to::<&'static u8>();
|
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if ! self.inner().visit_self() { return false; }
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self.align_to::<&'static u8>();
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true
|
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}
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|
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fn visit_type(&mut self) -> bool {
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if ! self.inner().visit_type() { return false; }
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true
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}
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}
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|
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struct my_visitor(@RefCell<Stuff>);
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|
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#[deriving(Clone)]
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struct Stuff {
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ptr1: *c_void,
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ptr2: *c_void,
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vals: ~[~str]
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}
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impl my_visitor {
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pub fn get<T:Clone>(&mut self, f: |T|) {
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unsafe {
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let my_visitor(s) = *self;
|
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f((*((*s).get().ptr1 as *T)).clone());
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}
|
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}
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|
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pub fn visit_inner(&mut self, inner: *TyDesc) -> bool {
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unsafe {
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let my_visitor(s) = *self;
|
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let u = my_visitor(s);
|
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let mut v = ptr_visit_adaptor::<my_visitor>(Inner {inner: u});
|
||||
visit_tydesc(inner, &mut v as &mut TyVisitor);
|
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true
|
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}
|
||||
}
|
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}
|
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|
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struct Inner<V> { inner: V }
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|
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impl movable_ptr for my_visitor {
|
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fn move_ptr(&mut self, adjustment: |*c_void| -> *c_void) {
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let my_visitor(s) = *self;
|
||||
let mut this = s.borrow_mut();
|
||||
this.get().ptr1 = adjustment(this.get().ptr1);
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this.get().ptr2 = adjustment(this.get().ptr2);
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}
|
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}
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|
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impl TyVisitor for my_visitor {
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||||
|
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fn visit_bot(&mut self) -> bool { true }
|
||||
fn visit_nil(&mut self) -> bool { true }
|
||||
fn visit_bool(&mut self) -> bool {
|
||||
self.get::<bool>(|b| {
|
||||
let my_visitor(s) = *self;
|
||||
let mut this = s.borrow_mut();
|
||||
this.get().vals.push(b.to_str());
|
||||
});
|
||||
true
|
||||
}
|
||||
fn visit_int(&mut self) -> bool {
|
||||
self.get::<int>(|i| {
|
||||
let my_visitor(s) = *self;
|
||||
let mut this = s.borrow_mut();
|
||||
this.get().vals.push(i.to_str());
|
||||
});
|
||||
true
|
||||
}
|
||||
fn visit_i8(&mut self) -> bool { true }
|
||||
fn visit_i16(&mut self) -> bool { true }
|
||||
fn visit_i32(&mut self) -> bool { true }
|
||||
fn visit_i64(&mut self) -> bool { true }
|
||||
|
||||
fn visit_uint(&mut self) -> bool { true }
|
||||
fn visit_u8(&mut self) -> bool { true }
|
||||
fn visit_u16(&mut self) -> bool { true }
|
||||
fn visit_u32(&mut self) -> bool { true }
|
||||
fn visit_u64(&mut self) -> bool { true }
|
||||
|
||||
fn visit_f32(&mut self) -> bool { true }
|
||||
fn visit_f64(&mut self) -> bool { true }
|
||||
|
||||
fn visit_char(&mut self) -> bool { true }
|
||||
|
||||
fn visit_estr_box(&mut self) -> bool { true }
|
||||
fn visit_estr_uniq(&mut self) -> bool { true }
|
||||
fn visit_estr_slice(&mut self) -> bool { true }
|
||||
fn visit_estr_fixed(&mut self, _n: uint, _sz: uint,
|
||||
_align: uint) -> bool { true }
|
||||
|
||||
fn visit_box(&mut self, _mtbl: uint, _inner: *TyDesc) -> bool { true }
|
||||
fn visit_uniq(&mut self, _mtbl: uint, _inner: *TyDesc) -> bool { true }
|
||||
fn visit_ptr(&mut self, _mtbl: uint, _inner: *TyDesc) -> bool { true }
|
||||
fn visit_rptr(&mut self, _mtbl: uint, _inner: *TyDesc) -> bool { true }
|
||||
|
||||
fn visit_vec(&mut self, _mtbl: uint, _inner: *TyDesc) -> bool { true }
|
||||
fn visit_unboxed_vec(&mut self, _mtbl: uint, _inner: *TyDesc) -> bool { true }
|
||||
fn visit_evec_box(&mut self, _mtbl: uint, _inner: *TyDesc) -> bool { true }
|
||||
fn visit_evec_uniq(&mut self, _mtbl: uint, _inner: *TyDesc) -> bool { true }
|
||||
fn visit_evec_slice(&mut self, _mtbl: uint, _inner: *TyDesc) -> bool { true }
|
||||
fn visit_evec_fixed(&mut self, _n: uint, _sz: uint, _align: uint,
|
||||
_mtbl: uint, _inner: *TyDesc) -> bool { true }
|
||||
|
||||
fn visit_enter_rec(&mut self, _n_fields: uint,
|
||||
_sz: uint, _align: uint) -> bool { true }
|
||||
fn visit_rec_field(&mut self, _i: uint, _name: &str,
|
||||
_mtbl: uint, inner: *TyDesc) -> bool {
|
||||
error!("rec field!");
|
||||
self.visit_inner(inner)
|
||||
}
|
||||
fn visit_leave_rec(&mut self, _n_fields: uint,
|
||||
_sz: uint, _align: uint) -> bool { true }
|
||||
|
||||
fn visit_enter_class(&mut self, _name: &str, _named_fields: bool, _n_fields: uint,
|
||||
_sz: uint, _align: uint) -> bool { true }
|
||||
fn visit_class_field(&mut self, _i: uint, _name: &str, _named: bool,
|
||||
_mtbl: uint, inner: *TyDesc) -> bool {
|
||||
self.visit_inner(inner)
|
||||
}
|
||||
fn visit_leave_class(&mut self, _name: &str, _named_fields: bool, _n_fields: uint,
|
||||
_sz: uint, _align: uint) -> bool { true }
|
||||
|
||||
fn visit_enter_tup(&mut self, _n_fields: uint,
|
||||
_sz: uint, _align: uint) -> bool { true }
|
||||
fn visit_tup_field(&mut self, _i: uint, inner: *TyDesc) -> bool {
|
||||
error!("tup field!");
|
||||
self.visit_inner(inner)
|
||||
}
|
||||
fn visit_leave_tup(&mut self, _n_fields: uint,
|
||||
_sz: uint, _align: uint) -> bool { true }
|
||||
|
||||
fn visit_enter_enum(&mut self, _n_variants: uint,
|
||||
_get_disr: extern unsafe fn(ptr: *Opaque) -> Disr,
|
||||
_sz: uint, _align: uint) -> bool {
|
||||
// FIXME (#3732): this needs to rewind between enum variants, or something.
|
||||
true
|
||||
}
|
||||
fn visit_enter_enum_variant(&mut self, _variant: uint,
|
||||
_disr_val: Disr,
|
||||
_n_fields: uint,
|
||||
_name: &str) -> bool { true }
|
||||
fn visit_enum_variant_field(&mut self, _i: uint, _offset: uint, inner: *TyDesc) -> bool {
|
||||
self.visit_inner(inner)
|
||||
}
|
||||
fn visit_leave_enum_variant(&mut self, _variant: uint,
|
||||
_disr_val: Disr,
|
||||
_n_fields: uint,
|
||||
_name: &str) -> bool { true }
|
||||
fn visit_leave_enum(&mut self, _n_variants: uint,
|
||||
_get_disr: extern unsafe fn(ptr: *Opaque) -> Disr,
|
||||
_sz: uint, _align: uint) -> bool { true }
|
||||
|
||||
fn visit_enter_fn(&mut self, _purity: uint, _proto: uint,
|
||||
_n_inputs: uint, _retstyle: uint) -> bool { true }
|
||||
fn visit_fn_input(&mut self, _i: uint, _mode: uint, _inner: *TyDesc) -> bool {
|
||||
true
|
||||
}
|
||||
fn visit_fn_output(&mut self, _retstyle: uint, _variadic: bool, _inner: *TyDesc) -> bool {
|
||||
true
|
||||
}
|
||||
fn visit_leave_fn(&mut self, _purity: uint, _proto: uint,
|
||||
_n_inputs: uint, _retstyle: uint) -> bool { true }
|
||||
|
||||
|
||||
fn visit_trait(&mut self, _name: &str) -> bool { true }
|
||||
fn visit_param(&mut self, _i: uint) -> bool { true }
|
||||
fn visit_self(&mut self) -> bool { true }
|
||||
fn visit_type(&mut self) -> bool { true }
|
||||
}
|
||||
|
||||
fn get_tydesc_for<T>(_t: T) -> *TyDesc {
|
||||
unsafe {
|
||||
get_tydesc::<T>()
|
||||
}
|
||||
}
|
||||
|
||||
struct Triple { x: int, y: int, z: int }
|
||||
|
||||
pub fn main() {
|
||||
unsafe {
|
||||
let r = (1,2,3,true,false, Triple {x:5,y:4,z:3}, (12,));
|
||||
let p = ptr::to_unsafe_ptr(&r) as *c_void;
|
||||
let u = my_visitor(@RefCell::new(Stuff {ptr1: p,
|
||||
ptr2: p,
|
||||
vals: ~[]}));
|
||||
let mut v = ptr_visit_adaptor(Inner {inner: u});
|
||||
let td = get_tydesc_for(r);
|
||||
error!("tydesc sz: {}, align: {}",
|
||||
(*td).size, (*td).align);
|
||||
visit_tydesc(td, &mut v as &mut TyVisitor);
|
||||
|
||||
let my_visitor(m) = u;
|
||||
let mut ub = m.borrow_mut();
|
||||
let r = ub.get().vals.clone();
|
||||
for s in r.iter() {
|
||||
println!("val: {}", *s);
|
||||
}
|
||||
error!("{:?}", ub.get().vals.clone());
|
||||
assert_eq!(ub.get().vals.clone(),
|
||||
~[ ~"1", ~"2", ~"3", ~"true", ~"false", ~"5", ~"4", ~"3", ~"12"]);
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue