Migrate all users of opt_vec to owned_slice, delete opt_vec.

syntax::opt_vec is now entirely unused, and so can go.

Author: huonw

src/librustc/front/std_inject.rs

@@ -18,7 +18,7 @@ use syntax::codemap::DUMMY_SP;
 use syntax::codemap;
 use syntax::fold::Folder;
 use syntax::fold;
-use syntax::opt_vec;
+use syntax::owned_slice::OwnedSlice;
 use syntax::parse::token::InternedString;
 use syntax::parse::token;
 use syntax::util::small_vector::SmallVector;
@@ -164,12 +164,12 @@ impl<'a> fold::Folder for PreludeInjector<'a> {
                 ast::PathSegment {
                     identifier: token::str_to_ident("std"),
                     lifetimes: Vec::new(),
-                    types: opt_vec::Empty,
+                    types: OwnedSlice::empty(),
                 },
                 ast::PathSegment {
                     identifier: token::str_to_ident("prelude"),
                     lifetimes: Vec::new(),
-                    types: opt_vec::Empty,
+                    types: OwnedSlice::empty(),
                 }),
         };
 

src/librustc/front/test.rs

@@ -31,7 +31,7 @@ use syntax::ext::base::ExtCtxt;
 use syntax::ext::expand::ExpansionConfig;
 use syntax::fold::Folder;
 use syntax::fold;
-use syntax::opt_vec;
+use syntax::owned_slice::OwnedSlice;
 use syntax::parse::token::InternedString;
 use syntax::parse::token;
 use syntax::print::pprust;
@@ -377,7 +377,7 @@ fn path_node(ids: Vec<ast::Ident> ) -> ast::Path {
         segments: ids.move_iter().map(|identifier| ast::PathSegment {
             identifier: identifier,
             lifetimes: Vec::new(),
-            types: opt_vec::Empty,
+            types: OwnedSlice::empty(),
         }).collect()
     }
 }
@@ -389,7 +389,7 @@ fn path_node_global(ids: Vec<ast::Ident> ) -> ast::Path {
         segments: ids.move_iter().map(|identifier| ast::PathSegment {
             identifier: identifier,
             lifetimes: Vec::new(),
-            types: opt_vec::Empty,
+            types: OwnedSlice::empty(),
         }).collect()
     }
 }

src/librustc/metadata/tydecode.rs

@@ -24,7 +24,7 @@ use syntax::abi::AbiSet;
 use syntax::abi;
 use syntax::ast;
 use syntax::ast::*;
-use syntax::opt_vec;
+use syntax::owned_slice::OwnedSlice;
 use syntax::parse::token;
 
 // Compact string representation for ty::t values. API ty_str &
@@ -198,7 +198,7 @@ fn parse_region_substs(st: &mut PState, conv: conv_did) -> ty::RegionSubsts {
                 regions.push(r);
             }
             assert_eq!(next(st), '.');
-            ty::NonerasedRegions(opt_vec::from(regions))
+            ty::NonerasedRegions(OwnedSlice::from_vec(regions))
         }
         _ => fail!("parse_bound_region: bad input")
     }

src/librustc/middle/kind.rs

@@ -19,7 +19,7 @@ use util::ppaux::UserString;
 use syntax::ast::*;
 use syntax::attr;
 use syntax::codemap::Span;
-use syntax::opt_vec;
+use syntax::owned_slice::OwnedSlice;
 use syntax::print::pprust::expr_to_str;
 use syntax::{visit,ast_util};
 use syntax::visit::Visitor;
@@ -92,7 +92,7 @@ fn check_struct_safe_for_destructor(cx: &mut Context,
     let struct_tpt = ty::lookup_item_type(cx.tcx, struct_did);
     if !struct_tpt.generics.has_type_params() {
         let struct_ty = ty::mk_struct(cx.tcx, struct_did, ty::substs {
-            regions: ty::NonerasedRegions(opt_vec::Empty),
+            regions: ty::NonerasedRegions(OwnedSlice::empty()),
             self_ty: None,
             tps: Vec::new()
         });

src/librustc/middle/privacy.rs

@@ -28,7 +28,7 @@ use syntax::ast_util::{is_local, def_id_of_def, local_def};
 use syntax::attr;
 use syntax::codemap::Span;
 use syntax::parse::token;
-use syntax::opt_vec;
+use syntax::owned_slice::OwnedSlice;
 use syntax::visit;
 use syntax::visit::Visitor;
 
@@ -842,7 +842,7 @@ impl<'a> Visitor<()> for PrivacyVisitor<'a> {
                                 let seg = ast::PathSegment {
                                     identifier: pid.node.name,
                                     lifetimes: Vec::new(),
-                                    types: opt_vec::Empty,
+                                    types: OwnedSlice::empty(),
                                 };
                                 let segs = vec!(seg);
                                 let path = ast::Path {

src/librustc/middle/resolve.rs

@@ -27,7 +27,7 @@ use syntax::parse::token::special_idents;
 use syntax::parse::token;
 use syntax::print::pprust::path_to_str;
 use syntax::codemap::{Span, DUMMY_SP, Pos};
-use syntax::opt_vec::OptVec;
+use syntax::owned_slice::OwnedSlice;
 use syntax::visit;
 use syntax::visit::Visitor;
 
@@ -3969,7 +3969,7 @@ impl<'a> Resolver<'a> {
     }
 
     fn resolve_type_parameters(&mut self,
-                                   type_parameters: &OptVec<TyParam>) {
+                                   type_parameters: &OwnedSlice<TyParam>) {
         for type_parameter in type_parameters.iter() {
             for bound in type_parameter.bounds.iter() {
                 self.resolve_type_parameter_bound(type_parameter.id, bound);

src/librustc/middle/resolve_lifetime.rs

@@ -21,7 +21,7 @@ use driver::session::Session;
 use util::nodemap::NodeMap;
 use syntax::ast;
 use syntax::codemap::Span;
-use syntax::opt_vec::OptVec;
+use syntax::owned_slice::OwnedSlice;
 use syntax::parse::token::special_idents;
 use syntax::parse::token;
 use syntax::print::pprust::{lifetime_to_str};
@@ -412,7 +412,7 @@ pub fn early_bound_lifetimes<'a>(generics: &'a ast::Generics) -> Vec<ast::Lifeti
         .collect()
 }
 
-pub fn free_lifetimes(ty_params: &OptVec<ast::TyParam>) -> Vec<ast::Name> {
+pub fn free_lifetimes(ty_params: &OwnedSlice<ast::TyParam>) -> Vec<ast::Name> {
     /*!
      * Gathers up and returns the names of any lifetimes that appear
      * free in `ty_params`. Of course, right now, all lifetimes appear

src/librustc/middle/subst.rs

@@ -17,7 +17,7 @@ use util::ppaux::Repr;
 
 use std::rc::Rc;
 use syntax::codemap::Span;
-use syntax::opt_vec::OptVec;
+use syntax::owned_slice::OwnedSlice;
 
 ///////////////////////////////////////////////////////////////////////////
 // Public trait `Subst`
@@ -145,10 +145,10 @@ impl<T:Subst> Subst for Rc<T> {
     }
 }
 
-impl<T:Subst> Subst for OptVec<T> {
+impl<T:Subst> Subst for OwnedSlice<T> {
     fn subst_spanned(&self, tcx: &ty::ctxt,
                      substs: &ty::substs,
-                     span: Option<Span>) -> OptVec<T> {
+                     span: Option<Span>) -> OwnedSlice<T> {
         self.map(|t| t.subst_spanned(tcx, substs, span))
     }
 }

src/librustc/middle/trans/debuginfo.rs

@@ -150,7 +150,8 @@ use std::ptr;
 use std::sync::atomics;
 use std::slice;
 use syntax::codemap::{Span, Pos};
-use syntax::{abi, ast, codemap, ast_util, ast_map, opt_vec};
+use syntax::{abi, ast, codemap, ast_util, ast_map};
+use syntax::owned_slice::OwnedSlice;
 use syntax::parse::token;
 use syntax::parse::token::special_idents;
 
@@ -539,7 +540,7 @@ pub fn create_function_debug_context(cx: &CrateContext,
         return FunctionWithoutDebugInfo;
     }
 
-    let empty_generics = ast::Generics { lifetimes: Vec::new(), ty_params: opt_vec::Empty };
+    let empty_generics = ast::Generics { lifetimes: Vec::new(), ty_params: OwnedSlice::empty() };
 
     let fnitem = cx.tcx.map.get(fn_ast_id);
 

src/librustc/middle/trans/type_of.rs

@@ -20,7 +20,7 @@ use util::ppaux::Repr;
 use middle::trans::type_::Type;
 
 use syntax::ast;
-use syntax::opt_vec;
+use syntax::owned_slice::OwnedSlice;
 
 pub fn arg_is_indirect(ccx: &CrateContext, arg_ty: ty::t) -> bool {
     !type_is_immediate(ccx, arg_ty)
@@ -324,7 +324,7 @@ pub fn llvm_type_name(cx: &CrateContext,
         an_enum => { "enum" }
     };
     let tstr = ppaux::parameterized(cx.tcx(), ty::item_path_str(cx.tcx(), did),
-                                    &ty::NonerasedRegions(opt_vec::Empty),
+                                    &ty::NonerasedRegions(OwnedSlice::empty()),
                                     tps, did, false);
     if did.krate == 0 {
         format!("{}.{}", name, tstr)