librustc: Remove visit_tydesc intrinsic.
This commit is contained in:
Luqman Aden
parent
ce6226e6c9
commit
7a4122ac67
@ -327,8 +327,6 @@ extern "rust-intrinsic" {
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/// Returns `true` if a type is managed (will be allocated on the local heap)
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pub fn owns_managed<T>() -> bool;
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pub fn visit_tydesc(td: *const TyDesc, tv: &mut TyVisitor);
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/// Calculates the offset from a pointer. The offset *must* be in-bounds of
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/// the object, or one-byte-past-the-end. An arithmetic overflow is also
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/// undefined behaviour.
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@ -307,13 +307,6 @@ pub fn trans_intrinsic_call<'blk, 'tcx>(mut bcx: Block<'blk, 'tcx>, node: ast::N
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let tp_ty = *substs.types.get(FnSpace, 0);
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C_bool(ccx, ty::type_contents(ccx.tcx(), tp_ty).owns_managed())
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}
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(_, "visit_tydesc") => {
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let td = *llargs.get(0);
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let visitor = *llargs.get(1);
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let td = PointerCast(bcx, td, ccx.tydesc_type().ptr_to());
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glue::call_visit_glue(bcx, visitor, td);
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C_nil(ccx)
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}
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(_, "offset") => {
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let ptr = *llargs.get(0);
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let offset = *llargs.get(1);
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@ -5578,25 +5578,6 @@ pub fn check_intrinsic_type(ccx: &CrateCtxt, it: &ast::ForeignItem) {
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}
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}
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},
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"visit_tydesc" => {
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let tydesc_ty = match ty::get_tydesc_ty(ccx.tcx) {
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Ok(t) => t,
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Err(s) => { tcx.sess.span_fatal(it.span, s.as_slice()); }
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};
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let region0 = ty::ReLateBound(it.id, ty::BrAnon(0));
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let region1 = ty::ReLateBound(it.id, ty::BrAnon(1));
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let visitor_object_ty =
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match ty::visitor_object_ty(tcx, region0, region1) {
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Ok((_, vot)) => vot,
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Err(s) => { tcx.sess.span_fatal(it.span, s.as_slice()); }
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};
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let td_ptr = ty::mk_ptr(ccx.tcx, ty::mt {
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ty: tydesc_ty,
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mutbl: ast::MutImmutable
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});
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(0, vec!( td_ptr, visitor_object_ty ), ty::mk_nil())
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}
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"offset" => {
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(1,
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vec!(
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@ -1,147 +0,0 @@
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// Copyright 2012 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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use std::intrinsics::{TyDesc, get_tydesc, visit_tydesc, TyVisitor, Disr, Opaque};
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struct MyVisitor {
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types: Vec<String> ,
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}
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impl TyVisitor for MyVisitor {
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fn visit_bot(&mut self) -> bool {
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self.types.push("bot".to_string());
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println!("visited bot type");
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true
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}
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fn visit_nil(&mut self) -> bool {
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self.types.push("nil".to_string());
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println!("visited nil type");
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true
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}
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fn visit_bool(&mut self) -> bool {
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self.types.push("bool".to_string());
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println!("visited bool type");
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true
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}
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fn visit_int(&mut self) -> bool {
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self.types.push("int".to_string());
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println!("visited int type");
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true
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}
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fn visit_i8(&mut self) -> bool {
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self.types.push("i8".to_string());
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println!("visited i8 type");
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true
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}
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fn visit_i16(&mut self) -> bool {
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self.types.push("i16".to_string());
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println!("visited i16 type");
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true
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}
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fn visit_i32(&mut self) -> bool { true }
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fn visit_i64(&mut self) -> bool { true }
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fn visit_uint(&mut self) -> bool { true }
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fn visit_u8(&mut self) -> bool { true }
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fn visit_u16(&mut self) -> bool { true }
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fn visit_u32(&mut self) -> bool { true }
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fn visit_u64(&mut self) -> bool { true }
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fn visit_f32(&mut self) -> bool { true }
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fn visit_f64(&mut self) -> bool { true }
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fn visit_char(&mut self) -> bool { true }
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fn visit_estr_slice(&mut self) -> bool { true }
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fn visit_box(&mut self, _mtbl: uint, _inner: *const TyDesc) -> bool { true }
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fn visit_uniq(&mut self, _mtbl: uint, _inner: *const TyDesc) -> bool { true }
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fn visit_ptr(&mut self, _mtbl: uint, _inner: *const TyDesc) -> bool { true }
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fn visit_rptr(&mut self, _mtbl: uint, _inner: *const TyDesc) -> bool { true }
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fn visit_evec_slice(&mut self, _mtbl: uint, _inner: *const TyDesc) -> bool { true }
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fn visit_evec_fixed(&mut self, _n: uint, _sz: uint, _align: uint,
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_inner: *const TyDesc) -> bool { true }
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fn visit_enter_rec(&mut self, _n_fields: uint,
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_sz: uint, _align: uint) -> bool { true }
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fn visit_rec_field(&mut self, _i: uint, _name: &str,
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_mtbl: uint, _inner: *const TyDesc) -> bool { true }
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fn visit_leave_rec(&mut self, _n_fields: uint,
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_sz: uint, _align: uint) -> bool { true }
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fn visit_enter_class(&mut self, _name: &str, _named_fields: bool, _n_fields: uint,
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_sz: uint, _align: uint) -> bool { true }
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fn visit_class_field(&mut self, _i: uint, _name: &str, _named: bool,
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_mtbl: uint, _inner: *const TyDesc) -> bool { true }
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fn visit_leave_class(&mut self, _name: &str, _named_fields: bool, _n_fields: uint,
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_sz: uint, _align: uint) -> bool { true }
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fn visit_enter_tup(&mut self, _n_fields: uint,
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_sz: uint, _align: uint) -> bool { true }
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fn visit_tup_field(&mut self, _i: uint, _inner: *const TyDesc) -> bool { true }
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fn visit_leave_tup(&mut self, _n_fields: uint,
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_sz: uint, _align: uint) -> bool { true }
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fn visit_enter_enum(&mut self, _n_variants: uint,
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_get_disr: unsafe extern fn(ptr: *const Opaque) -> Disr,
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_sz: uint, _align: uint) -> bool { true }
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fn visit_enter_enum_variant(&mut self,
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_variant: uint,
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_disr_val: Disr,
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_n_fields: uint,
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_name: &str) -> bool { true }
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fn visit_enum_variant_field(&mut self, _i: uint, _offset: uint, _inner: *const TyDesc)
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-> bool { true }
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fn visit_leave_enum_variant(&mut self,
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_variant: uint,
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_disr_val: Disr,
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_n_fields: uint,
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_name: &str) -> bool { true }
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fn visit_leave_enum(&mut self,
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_n_variants: uint,
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_get_disr: unsafe extern fn(ptr: *const Opaque) -> Disr,
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_sz: uint, _align: uint) -> bool { true }
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fn visit_enter_fn(&mut self, _purity: uint, _proto: uint,
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_n_inputs: uint, _retstyle: uint) -> bool { true }
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fn visit_fn_input(&mut self, _i: uint, _mode: uint, _inner: *const TyDesc) -> bool { true }
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fn visit_fn_output(&mut self, _retstyle: uint, _variadic: bool, _inner: *const TyDesc)
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-> bool { true }
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fn visit_leave_fn(&mut self, _purity: uint, _proto: uint,
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_n_inputs: uint, _retstyle: uint) -> bool { true }
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fn visit_trait(&mut self, _name: &str) -> bool { true }
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fn visit_param(&mut self, _i: uint) -> bool { true }
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fn visit_self(&mut self) -> bool { true }
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}
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fn visit_ty<T>(v: &mut MyVisitor) {
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unsafe { visit_tydesc(get_tydesc::<T>(), v as &mut TyVisitor) }
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}
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pub fn main() {
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let mut v = MyVisitor {types: Vec::new()};
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visit_ty::<bool>(&mut v);
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visit_ty::<int>(&mut v);
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visit_ty::<i8>(&mut v);
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visit_ty::<i16>(&mut v);
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for s in v.types.iter() {
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println!("type: {}", (*s).clone());
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}
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let vec_types: Vec<String> = v.types.clone().into_iter().collect();
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assert_eq!(vec_types, vec!("bool".to_string(), "int".to_string(),
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"i8".to_string(), "i16".to_string()));
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}
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