| // Copyright 2016 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| //! Walks the crate looking for items/impl-items/trait-items that have |
| //! either a `rustc_symbol_name` or `rustc_item_path` attribute and |
| //! generates an error giving, respectively, the symbol name or |
| //! item-path. This is used for unit testing the code that generates |
| //! paths etc in all kinds of annoying scenarios. |
| |
| use attributes; |
| use base; |
| use consts; |
| use context::{CrateContext, SharedCrateContext}; |
| use declare; |
| use glue::DropGlueKind; |
| use llvm; |
| use monomorphize::{self, Instance}; |
| use inline; |
| use rustc::dep_graph::DepNode; |
| use rustc::hir; |
| use rustc::hir::map as hir_map; |
| use rustc::hir::def_id::DefId; |
| use rustc::ty::{self, Ty, TyCtxt, TypeFoldable}; |
| use rustc::ty::subst; |
| use rustc_const_eval::fatal_const_eval_err; |
| use std::hash::{Hash, Hasher}; |
| use syntax::ast::{self, NodeId}; |
| use syntax::{attr,errors}; |
| use type_of; |
| use glue; |
| use abi::{Abi, FnType}; |
| use back::symbol_names; |
| |
| #[derive(PartialEq, Eq, Clone, Copy, Debug)] |
| pub enum TransItem<'tcx> { |
| DropGlue(DropGlueKind<'tcx>), |
| Fn(Instance<'tcx>), |
| Static(NodeId) |
| } |
| |
| impl<'tcx> Hash for TransItem<'tcx> { |
| fn hash<H: Hasher>(&self, s: &mut H) { |
| match *self { |
| TransItem::DropGlue(t) => { |
| 0u8.hash(s); |
| t.hash(s); |
| }, |
| TransItem::Fn(instance) => { |
| 1u8.hash(s); |
| instance.def.hash(s); |
| (instance.substs as *const _ as usize).hash(s); |
| } |
| TransItem::Static(node_id) => { |
| 2u8.hash(s); |
| node_id.hash(s); |
| } |
| }; |
| } |
| } |
| |
| impl<'a, 'tcx> TransItem<'tcx> { |
| |
| pub fn define(&self, ccx: &CrateContext<'a, 'tcx>) { |
| debug!("BEGIN IMPLEMENTING '{} ({})' in cgu {}", |
| self.to_string(ccx.tcx()), |
| self.to_raw_string(), |
| ccx.codegen_unit().name()); |
| |
| // (*) This code executes in the context of a dep-node for the |
| // entire CGU. In some cases, we introduce dep-nodes for |
| // particular items that we are translating (these nodes will |
| // have read edges coming into the CGU node). These smaller |
| // nodes are not needed for correctness -- we always |
| // invalidate an entire CGU at a time -- but they enable |
| // finer-grained testing, since you can write tests that check |
| // that the incoming edges to a particular fn are from a |
| // particular set. |
| |
| self.register_reads(ccx); |
| |
| match *self { |
| TransItem::Static(node_id) => { |
| let def_id = ccx.tcx().map.local_def_id(node_id); |
| let _task = ccx.tcx().dep_graph.in_task(DepNode::TransCrateItem(def_id)); // (*) |
| let item = ccx.tcx().map.expect_item(node_id); |
| if let hir::ItemStatic(_, m, ref expr) = item.node { |
| match consts::trans_static(&ccx, m, expr, item.id, &item.attrs) { |
| Ok(_) => { /* Cool, everything's alright. */ }, |
| Err(err) => { |
| // FIXME: shouldn't this be a `span_err`? |
| fatal_const_eval_err( |
| ccx.tcx(), &err, expr.span, "static"); |
| } |
| }; |
| } else { |
| span_bug!(item.span, "Mismatch between hir::Item type and TransItem type") |
| } |
| } |
| TransItem::Fn(instance) => { |
| let _task = ccx.tcx().dep_graph.in_task( |
| DepNode::TransCrateItem(instance.def)); // (*) |
| |
| base::trans_instance(&ccx, instance); |
| } |
| TransItem::DropGlue(dg) => { |
| glue::implement_drop_glue(&ccx, dg); |
| } |
| } |
| |
| debug!("END IMPLEMENTING '{} ({})' in cgu {}", |
| self.to_string(ccx.tcx()), |
| self.to_raw_string(), |
| ccx.codegen_unit().name()); |
| } |
| |
| /// If necessary, creates a subtask for trans'ing a particular item and registers reads on |
| /// `TypeckItemBody` and `Hir`. |
| fn register_reads(&self, ccx: &CrateContext<'a, 'tcx>) { |
| let tcx = ccx.tcx(); |
| let def_id = match *self { |
| TransItem::Static(node_id) => { |
| tcx.map.local_def_id(node_id) |
| } |
| TransItem::Fn(instance) => { |
| if let Some(node) = tcx.map.as_local_node_id(instance.def) { |
| if let hir_map::Node::NodeItem(_) = tcx.map.get(node) { |
| // This already is a "real" item |
| instance.def |
| } else { |
| // Get the enclosing item and register a read on it |
| tcx.map.get_parent_did(node) |
| } |
| } else { |
| // Translating an inlined item from another crate? Don't track anything. |
| return; |
| } |
| } |
| TransItem::DropGlue(_) => { |
| // Nothing to track for drop glue |
| return; |
| } |
| }; |
| |
| tcx.dep_graph.with_task(DepNode::TransCrateItem(def_id), || { |
| tcx.dep_graph.read(DepNode::Hir(def_id)); |
| |
| // We are going to be accessing various tables |
| // generated by TypeckItemBody; we also assume |
| // that the body passes type check. These tables |
| // are not individually tracked, so just register |
| // a read here. |
| tcx.dep_graph.read(DepNode::TypeckItemBody(def_id)); |
| }); |
| } |
| |
| pub fn predefine(&self, |
| ccx: &CrateContext<'a, 'tcx>, |
| linkage: llvm::Linkage) { |
| debug!("BEGIN PREDEFINING '{} ({})' in cgu {}", |
| self.to_string(ccx.tcx()), |
| self.to_raw_string(), |
| ccx.codegen_unit().name()); |
| |
| let symbol_name = ccx.symbol_map() |
| .get_or_compute(ccx.shared(), *self); |
| |
| debug!("symbol {}", &symbol_name); |
| |
| match *self { |
| TransItem::Static(node_id) => { |
| TransItem::predefine_static(ccx, node_id, linkage, &symbol_name); |
| } |
| TransItem::Fn(instance) => { |
| TransItem::predefine_fn(ccx, instance, linkage, &symbol_name); |
| } |
| TransItem::DropGlue(dg) => { |
| TransItem::predefine_drop_glue(ccx, dg, linkage, &symbol_name); |
| } |
| } |
| |
| debug!("END PREDEFINING '{} ({})' in cgu {}", |
| self.to_string(ccx.tcx()), |
| self.to_raw_string(), |
| ccx.codegen_unit().name()); |
| } |
| |
| fn predefine_static(ccx: &CrateContext<'a, 'tcx>, |
| node_id: ast::NodeId, |
| linkage: llvm::Linkage, |
| symbol_name: &str) { |
| let def_id = ccx.tcx().map.local_def_id(node_id); |
| let ty = ccx.tcx().lookup_item_type(def_id).ty; |
| let llty = type_of::type_of(ccx, ty); |
| |
| match ccx.tcx().map.get(node_id) { |
| hir::map::NodeItem(&hir::Item { |
| span, node: hir::ItemStatic(..), .. |
| }) => { |
| let g = declare::define_global(ccx, symbol_name, llty).unwrap_or_else(|| { |
| ccx.sess().span_fatal(span, |
| &format!("symbol `{}` is already defined", symbol_name)) |
| }); |
| |
| unsafe { llvm::LLVMSetLinkage(g, linkage) }; |
| } |
| |
| item => bug!("predefine_static: expected static, found {:?}", item) |
| } |
| } |
| |
| fn predefine_fn(ccx: &CrateContext<'a, 'tcx>, |
| instance: Instance<'tcx>, |
| linkage: llvm::Linkage, |
| symbol_name: &str) { |
| assert!(!instance.substs.types.needs_infer() && |
| !instance.substs.types.has_param_types()); |
| |
| let instance = inline::maybe_inline_instance(ccx, instance); |
| |
| let item_ty = ccx.tcx().lookup_item_type(instance.def).ty; |
| let item_ty = ccx.tcx().erase_regions(&item_ty); |
| let mono_ty = monomorphize::apply_param_substs(ccx.tcx(), instance.substs, &item_ty); |
| |
| let fn_node_id = ccx.tcx().map.as_local_node_id(instance.def).unwrap(); |
| let map_node = errors::expect( |
| ccx.sess().diagnostic(), |
| ccx.tcx().map.find(fn_node_id), |
| || { |
| format!("while instantiating `{}`, couldn't find it in \ |
| the item map (may have attempted to monomorphize \ |
| an item defined in a different crate?)", |
| instance) |
| }); |
| |
| match map_node { |
| hir_map::NodeItem(&hir::Item { |
| ref attrs, node: hir::ItemFn(..), .. |
| }) | |
| hir_map::NodeTraitItem(&hir::TraitItem { |
| ref attrs, node: hir::MethodTraitItem(..), .. |
| }) | |
| hir_map::NodeImplItem(&hir::ImplItem { |
| ref attrs, node: hir::ImplItemKind::Method(..), .. |
| }) => { |
| let lldecl = declare::declare_fn(ccx, symbol_name, mono_ty); |
| unsafe { llvm::LLVMSetLinkage(lldecl, linkage) }; |
| base::set_link_section(ccx, lldecl, attrs); |
| if linkage == llvm::LinkOnceODRLinkage || |
| linkage == llvm::WeakODRLinkage { |
| llvm::SetUniqueComdat(ccx.llmod(), lldecl); |
| } |
| |
| attributes::from_fn_attrs(ccx, attrs, lldecl); |
| ccx.instances().borrow_mut().insert(instance, lldecl); |
| } |
| _ => bug!("Invalid item for TransItem::Fn: `{:?}`", map_node) |
| }; |
| |
| } |
| |
| fn predefine_drop_glue(ccx: &CrateContext<'a, 'tcx>, |
| dg: glue::DropGlueKind<'tcx>, |
| linkage: llvm::Linkage, |
| symbol_name: &str) { |
| let tcx = ccx.tcx(); |
| assert_eq!(dg.ty(), glue::get_drop_glue_type(tcx, dg.ty())); |
| let t = dg.ty(); |
| |
| let sig = ty::FnSig { |
| inputs: vec![tcx.mk_mut_ptr(tcx.types.i8)], |
| output: ty::FnOutput::FnConverging(tcx.mk_nil()), |
| variadic: false, |
| }; |
| |
| // Create a FnType for fn(*mut i8) and substitute the real type in |
| // later - that prevents FnType from splitting fat pointers up. |
| let mut fn_ty = FnType::new(ccx, Abi::Rust, &sig, &[]); |
| fn_ty.args[0].original_ty = type_of::type_of(ccx, t).ptr_to(); |
| let llfnty = fn_ty.llvm_type(ccx); |
| |
| assert!(declare::get_defined_value(ccx, symbol_name).is_none()); |
| let llfn = declare::declare_cfn(ccx, symbol_name, llfnty); |
| unsafe { llvm::LLVMSetLinkage(llfn, linkage) }; |
| if linkage == llvm::LinkOnceODRLinkage || |
| linkage == llvm::WeakODRLinkage { |
| llvm::SetUniqueComdat(ccx.llmod(), llfn); |
| } |
| attributes::set_frame_pointer_elimination(ccx, llfn); |
| ccx.drop_glues().borrow_mut().insert(dg, (llfn, fn_ty)); |
| } |
| |
| pub fn compute_symbol_name(&self, |
| scx: &SharedCrateContext<'a, 'tcx>) -> String { |
| match *self { |
| TransItem::Fn(instance) => instance.symbol_name(scx), |
| TransItem::Static(node_id) => { |
| let def_id = scx.tcx().map.local_def_id(node_id); |
| Instance::mono(scx, def_id).symbol_name(scx) |
| } |
| TransItem::DropGlue(dg) => { |
| let prefix = match dg { |
| DropGlueKind::Ty(_) => "drop", |
| DropGlueKind::TyContents(_) => "drop_contents", |
| }; |
| symbol_names::exported_name_from_type_and_prefix(scx, dg.ty(), prefix) |
| } |
| } |
| } |
| |
| pub fn requests_inline(&self, tcx: TyCtxt<'a, 'tcx, 'tcx>) -> bool { |
| match *self { |
| TransItem::Fn(ref instance) => { |
| !instance.substs.types.is_empty() || { |
| let attributes = tcx.get_attrs(instance.def); |
| attr::requests_inline(&attributes[..]) |
| } |
| } |
| TransItem::DropGlue(..) => true, |
| TransItem::Static(..) => false, |
| } |
| } |
| |
| pub fn is_from_extern_crate(&self) -> bool { |
| match *self { |
| TransItem::Fn(ref instance) => !instance.def.is_local(), |
| TransItem::DropGlue(..) | |
| TransItem::Static(..) => false, |
| } |
| } |
| |
| pub fn is_instantiated_only_on_demand(&self) -> bool { |
| match *self { |
| TransItem::Fn(ref instance) => !instance.def.is_local() || |
| !instance.substs.types.is_empty(), |
| TransItem::DropGlue(..) => true, |
| TransItem::Static(..) => false, |
| } |
| } |
| |
| pub fn is_generic_fn(&self) -> bool { |
| match *self { |
| TransItem::Fn(ref instance) => !instance.substs.types.is_empty(), |
| TransItem::DropGlue(..) | |
| TransItem::Static(..) => false, |
| } |
| } |
| |
| pub fn explicit_linkage(&self, tcx: TyCtxt<'a, 'tcx, 'tcx>) -> Option<llvm::Linkage> { |
| let def_id = match *self { |
| TransItem::Fn(ref instance) => instance.def, |
| TransItem::Static(node_id) => tcx.map.local_def_id(node_id), |
| TransItem::DropGlue(..) => return None, |
| }; |
| |
| let attributes = tcx.get_attrs(def_id); |
| if let Some(name) = attr::first_attr_value_str_by_name(&attributes, "linkage") { |
| if let Some(linkage) = base::llvm_linkage_by_name(&name) { |
| Some(linkage) |
| } else { |
| let span = tcx.map.span_if_local(def_id); |
| if let Some(span) = span { |
| tcx.sess.span_fatal(span, "invalid linkage specified") |
| } else { |
| tcx.sess.fatal(&format!("invalid linkage specified: {}", name)) |
| } |
| } |
| } else { |
| None |
| } |
| } |
| |
| pub fn to_string(&self, tcx: TyCtxt<'a, 'tcx, 'tcx>) -> String { |
| let hir_map = &tcx.map; |
| |
| return match *self { |
| TransItem::DropGlue(dg) => { |
| let mut s = String::with_capacity(32); |
| match dg { |
| DropGlueKind::Ty(_) => s.push_str("drop-glue "), |
| DropGlueKind::TyContents(_) => s.push_str("drop-glue-contents "), |
| }; |
| push_unique_type_name(tcx, dg.ty(), &mut s); |
| s |
| } |
| TransItem::Fn(instance) => { |
| to_string_internal(tcx, "fn ", instance) |
| }, |
| TransItem::Static(node_id) => { |
| let def_id = hir_map.local_def_id(node_id); |
| let instance = Instance::new(def_id, |
| tcx.mk_substs(subst::Substs::empty())); |
| to_string_internal(tcx, "static ", instance) |
| }, |
| }; |
| |
| fn to_string_internal<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>, |
| prefix: &str, |
| instance: Instance<'tcx>) |
| -> String { |
| let mut result = String::with_capacity(32); |
| result.push_str(prefix); |
| push_instance_as_string(tcx, instance, &mut result); |
| result |
| } |
| } |
| |
| pub fn to_raw_string(&self) -> String { |
| match *self { |
| TransItem::DropGlue(dg) => { |
| let prefix = match dg { |
| DropGlueKind::Ty(_) => "Ty", |
| DropGlueKind::TyContents(_) => "TyContents", |
| }; |
| format!("DropGlue({}: {})", prefix, dg.ty() as *const _ as usize) |
| } |
| TransItem::Fn(instance) => { |
| format!("Fn({:?}, {})", |
| instance.def, |
| instance.substs as *const _ as usize) |
| } |
| TransItem::Static(id) => { |
| format!("Static({:?})", id) |
| } |
| } |
| } |
| } |
| |
| |
| //=----------------------------------------------------------------------------- |
| // TransItem String Keys |
| //=----------------------------------------------------------------------------- |
| |
| // The code below allows for producing a unique string key for a trans item. |
| // These keys are used by the handwritten auto-tests, so they need to be |
| // predictable and human-readable. |
| // |
| // Note: A lot of this could looks very similar to what's already in the |
| // ppaux module. It would be good to refactor things so we only have one |
| // parameterizable implementation for printing types. |
| |
| /// Same as `unique_type_name()` but with the result pushed onto the given |
| /// `output` parameter. |
| pub fn push_unique_type_name<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>, |
| t: ty::Ty<'tcx>, |
| output: &mut String) { |
| match t.sty { |
| ty::TyBool => output.push_str("bool"), |
| ty::TyChar => output.push_str("char"), |
| ty::TyStr => output.push_str("str"), |
| ty::TyInt(ast::IntTy::Is) => output.push_str("isize"), |
| ty::TyInt(ast::IntTy::I8) => output.push_str("i8"), |
| ty::TyInt(ast::IntTy::I16) => output.push_str("i16"), |
| ty::TyInt(ast::IntTy::I32) => output.push_str("i32"), |
| ty::TyInt(ast::IntTy::I64) => output.push_str("i64"), |
| ty::TyUint(ast::UintTy::Us) => output.push_str("usize"), |
| ty::TyUint(ast::UintTy::U8) => output.push_str("u8"), |
| ty::TyUint(ast::UintTy::U16) => output.push_str("u16"), |
| ty::TyUint(ast::UintTy::U32) => output.push_str("u32"), |
| ty::TyUint(ast::UintTy::U64) => output.push_str("u64"), |
| ty::TyFloat(ast::FloatTy::F32) => output.push_str("f32"), |
| ty::TyFloat(ast::FloatTy::F64) => output.push_str("f64"), |
| ty::TyStruct(adt_def, substs) | |
| ty::TyEnum(adt_def, substs) => { |
| push_item_name(tcx, adt_def.did, output); |
| push_type_params(tcx, &substs.types, &[], output); |
| }, |
| ty::TyTuple(component_types) => { |
| output.push('('); |
| for &component_type in component_types { |
| push_unique_type_name(tcx, component_type, output); |
| output.push_str(", "); |
| } |
| if !component_types.is_empty() { |
| output.pop(); |
| output.pop(); |
| } |
| output.push(')'); |
| }, |
| ty::TyBox(inner_type) => { |
| output.push_str("Box<"); |
| push_unique_type_name(tcx, inner_type, output); |
| output.push('>'); |
| }, |
| ty::TyRawPtr(ty::TypeAndMut { ty: inner_type, mutbl } ) => { |
| output.push('*'); |
| match mutbl { |
| hir::MutImmutable => output.push_str("const "), |
| hir::MutMutable => output.push_str("mut "), |
| } |
| |
| push_unique_type_name(tcx, inner_type, output); |
| }, |
| ty::TyRef(_, ty::TypeAndMut { ty: inner_type, mutbl }) => { |
| output.push('&'); |
| if mutbl == hir::MutMutable { |
| output.push_str("mut "); |
| } |
| |
| push_unique_type_name(tcx, inner_type, output); |
| }, |
| ty::TyArray(inner_type, len) => { |
| output.push('['); |
| push_unique_type_name(tcx, inner_type, output); |
| output.push_str(&format!("; {}", len)); |
| output.push(']'); |
| }, |
| ty::TySlice(inner_type) => { |
| output.push('['); |
| push_unique_type_name(tcx, inner_type, output); |
| output.push(']'); |
| }, |
| ty::TyTrait(ref trait_data) => { |
| push_item_name(tcx, trait_data.principal.skip_binder().def_id, output); |
| push_type_params(tcx, |
| &trait_data.principal.skip_binder().substs.types, |
| &trait_data.bounds.projection_bounds, |
| output); |
| }, |
| ty::TyFnDef(_, _, &ty::BareFnTy{ unsafety, abi, ref sig } ) | |
| ty::TyFnPtr(&ty::BareFnTy{ unsafety, abi, ref sig } ) => { |
| if unsafety == hir::Unsafety::Unsafe { |
| output.push_str("unsafe "); |
| } |
| |
| if abi != ::abi::Abi::Rust { |
| output.push_str("extern \""); |
| output.push_str(abi.name()); |
| output.push_str("\" "); |
| } |
| |
| output.push_str("fn("); |
| |
| let sig = tcx.erase_late_bound_regions(sig); |
| if !sig.inputs.is_empty() { |
| for ¶meter_type in &sig.inputs { |
| push_unique_type_name(tcx, parameter_type, output); |
| output.push_str(", "); |
| } |
| output.pop(); |
| output.pop(); |
| } |
| |
| if sig.variadic { |
| if !sig.inputs.is_empty() { |
| output.push_str(", ..."); |
| } else { |
| output.push_str("..."); |
| } |
| } |
| |
| output.push(')'); |
| |
| match sig.output { |
| ty::FnConverging(result_type) if result_type.is_nil() => {} |
| ty::FnConverging(result_type) => { |
| output.push_str(" -> "); |
| push_unique_type_name(tcx, result_type, output); |
| } |
| ty::FnDiverging => { |
| output.push_str(" -> !"); |
| } |
| } |
| }, |
| ty::TyClosure(def_id, ref closure_substs) => { |
| push_item_name(tcx, def_id, output); |
| output.push_str("{"); |
| output.push_str(&format!("{}:{}", def_id.krate, def_id.index.as_usize())); |
| output.push_str("}"); |
| push_type_params(tcx, &closure_substs.func_substs.types, &[], output); |
| } |
| ty::TyError | |
| ty::TyInfer(_) | |
| ty::TyProjection(..) | |
| ty::TyParam(_) => { |
| bug!("debuginfo: Trying to create type name for \ |
| unexpected type: {:?}", t); |
| } |
| } |
| } |
| |
| fn push_item_name(tcx: TyCtxt, |
| def_id: DefId, |
| output: &mut String) { |
| let def_path = tcx.def_path(def_id); |
| |
| // some_crate:: |
| output.push_str(&tcx.crate_name(def_path.krate)); |
| output.push_str("::"); |
| |
| // foo::bar::ItemName:: |
| for part in tcx.def_path(def_id).data { |
| output.push_str(&format!("{}[{}]::", |
| part.data.as_interned_str(), |
| part.disambiguator)); |
| } |
| |
| // remove final "::" |
| output.pop(); |
| output.pop(); |
| } |
| |
| fn push_type_params<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>, |
| types: &'tcx subst::VecPerParamSpace<Ty<'tcx>>, |
| projections: &[ty::PolyProjectionPredicate<'tcx>], |
| output: &mut String) { |
| if types.is_empty() && projections.is_empty() { |
| return; |
| } |
| |
| output.push('<'); |
| |
| for &type_parameter in types { |
| push_unique_type_name(tcx, type_parameter, output); |
| output.push_str(", "); |
| } |
| |
| for projection in projections { |
| let projection = projection.skip_binder(); |
| let name = &projection.projection_ty.item_name.as_str(); |
| output.push_str(name); |
| output.push_str("="); |
| push_unique_type_name(tcx, projection.ty, output); |
| output.push_str(", "); |
| } |
| |
| output.pop(); |
| output.pop(); |
| |
| output.push('>'); |
| } |
| |
| fn push_instance_as_string<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>, |
| instance: Instance<'tcx>, |
| output: &mut String) { |
| push_item_name(tcx, instance.def, output); |
| push_type_params(tcx, &instance.substs.types, &[], output); |
| } |
| |
| pub fn def_id_to_string(tcx: TyCtxt, def_id: DefId) -> String { |
| let mut output = String::new(); |
| push_item_name(tcx, def_id, &mut output); |
| output |
| } |
| |
| pub fn type_to_string<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>, |
| ty: ty::Ty<'tcx>) |
| -> String { |
| let mut output = String::new(); |
| push_unique_type_name(tcx, ty, &mut output); |
| output |
| } |
