[breaking-change] don't glob export ast::BlockCheckMode variants

src/librustc_driver/pretty.rs

@@ -30,7 +30,7 @@ use rustc_borrowck::graphviz as borrowck_dot;
 use rustc_resolve as resolve;
 use rustc_metadata::cstore::CStore;
 
-use syntax::ast;
+use syntax::ast::{self, BlockCheckMode};
 use syntax::codemap;
 use syntax::fold::{self, Folder};
 use syntax::print::{pp, pprust};
@@ -651,7 +651,7 @@ impl fold::Folder for ReplaceBodyWithLoop {
 
         if !self.within_static_or_const {
 
-            let empty_block = expr_to_block(ast::DefaultBlock, None);
+            let empty_block = expr_to_block(BlockCheckMode::Default, None);
             let loop_expr = P(ast::Expr {
                 node: ast::ExprLoop(empty_block, None),
                 id: ast::DUMMY_NODE_ID,

src/librustc_front/lowering.rs

@@ -1571,8 +1571,8 @@ pub fn lower_visibility(_lctx: &LoweringContext, v: Visibility) -> hir::Visibili
 
 pub fn lower_block_check_mode(lctx: &LoweringContext, b: &BlockCheckMode) -> hir::BlockCheckMode {
     match *b {
-        DefaultBlock => hir::DefaultBlock,
-        UnsafeBlock(u) => hir::UnsafeBlock(lower_unsafe_source(lctx, u)),
+        BlockCheckMode::Default => hir::DefaultBlock,
+        BlockCheckMode::Unsafe(u) => hir::UnsafeBlock(lower_unsafe_source(lctx, u)),
     }
 }
 

src/libsyntax/ast.rs

@@ -10,7 +10,6 @@
 
 // The Rust abstract syntax tree.
 
-pub use self::BlockCheckMode::*;
 pub use self::CaptureClause::*;
 pub use self::Decl_::*;
 pub use self::ExplicitSelf_::*;
@@ -870,8 +869,8 @@ pub type SpannedIdent = Spanned<Ident>;
 
 #[derive(Clone, PartialEq, Eq, RustcEncodable, RustcDecodable, Hash, Debug, Copy)]
 pub enum BlockCheckMode {
-    DefaultBlock,
-    UnsafeBlock(UnsafeSource),
+    Default,
+    Unsafe(UnsafeSource),
 }
 
 #[derive(Clone, PartialEq, Eq, RustcEncodable, RustcDecodable, Hash, Debug, Copy)]

src/libsyntax/ext/build.rs

@@ -9,9 +9,7 @@
 // except according to those terms.
 
 use abi;
-use ast::{Ident, Generics, Expr};
-use ast::UnOp;
-use ast;
+use ast::{self, Ident, Generics, Expr, BlockCheckMode, UnOp};
 use attr;
 use codemap::{Span, respan, Spanned, DUMMY_SP, Pos};
 use ext::base::ExtCtxt;
@@ -575,7 +573,7 @@ impl<'a> AstBuilder for ExtCtxt<'a> {
                stmts: stmts,
                expr: expr,
                id: ast::DUMMY_NODE_ID,
-               rules: ast::DefaultBlock,
+               rules: BlockCheckMode::Default,
                span: span,
             })
     }

src/libsyntax/parse/classify.rs

@@ -12,7 +12,7 @@
 
 // Predicates on exprs and stmts that the pretty-printer and parser use
 
-use ast;
+use ast::{self, BlockCheckMode};
 
 /// Does this expression require a semicolon to be treated
 /// as a statement? The negation of this: 'can this expression
@@ -37,7 +37,7 @@ pub fn expr_requires_semi_to_be_stmt(e: &ast::Expr) -> bool {
 
 pub fn expr_is_simple_block(e: &ast::Expr) -> bool {
     match e.node {
-        ast::ExprBlock(ref block) => block.rules == ast::DefaultBlock,
+        ast::ExprBlock(ref block) => block.rules == BlockCheckMode::Default,
         _ => false,
     }
 }

src/libsyntax/parse/mod.rs

@@ -988,7 +988,7 @@ mod tests {
                                             span: sp(17,19)})),
                                         expr: None,
                                         id: ast::DUMMY_NODE_ID,
-                                        rules: ast::DefaultBlock, // no idea
+                                        rules: ast::BlockCheckMode::Default, // no idea
                                         span: sp(15,21),
                                     })),
                             vis: ast::Inherited,

src/libsyntax/parse/parser.rs

@@ -18,7 +18,7 @@ use ast::{Mod, Arg, Arm, Attribute, BindingMode};
 use ast::Block;
 use ast::{BlockCheckMode, CaptureByRef, CaptureByValue, CaptureClause};
 use ast::{Constness, ConstTraitItem, Crate, CrateConfig};
-use ast::{Decl, DeclItem, DeclLocal, DefaultBlock};
+use ast::{Decl, DeclItem, DeclLocal};
 use ast::{EMPTY_CTXT, EnumDef, ExplicitSelf};
 use ast::{Expr, Expr_, ExprAddrOf, ExprMatch, ExprAgain};
 use ast::{ExprAssign, ExprAssignOp, ExprBinary, ExprBlock, ExprBox};
@@ -53,7 +53,7 @@ use ast::{TyFixedLengthVec, TyBareFn, TyTypeof, TyInfer};
 use ast::{TyParam, TyParamBounds, TyParen, TyPath, TyPtr};
 use ast::{TyRptr, TyTup, TyU32, TyVec};
 use ast::TypeTraitItem;
-use ast::{UnnamedField, UnsafeBlock};
+use ast::UnnamedField;
 use ast::{ViewPath, ViewPathGlob, ViewPathList, ViewPathSimple};
 use ast::{Visibility, WhereClause};
 use attr::{ThinAttributes, ThinAttributesExt, AttributesExt};
@@ -2104,7 +2104,7 @@ impl<'a> Parser<'a> {
                 }
             },
             token::OpenDelim(token::Brace) => {
-                return self.parse_block_expr(lo, DefaultBlock, attrs);
+                return self.parse_block_expr(lo, BlockCheckMode::Default, attrs);
             },
             token::BinOp(token::Or) |  token::OrOr => {
                 let lo = self.span.lo;
@@ -2220,7 +2220,7 @@ impl<'a> Parser<'a> {
                 if self.eat_keyword(keywords::Unsafe) {
                     return self.parse_block_expr(
                         lo,
-                        UnsafeBlock(ast::UserProvided),
+                        BlockCheckMode::Unsafe(ast::UserProvided),
                         attrs);
                 }
                 if self.eat_keyword(keywords::Return) {
@@ -3062,7 +3062,7 @@ impl<'a> Parser<'a> {
                     stmts: vec![],
                     span: body_expr.span,
                     expr: Some(body_expr),
-                    rules: DefaultBlock,
+                    rules: BlockCheckMode::Default,
                 })
             }
             _ => {
@@ -3826,7 +3826,7 @@ impl<'a> Parser<'a> {
                                  "place this code inside a block"));
         }
 
-        self.parse_block_tail(lo, DefaultBlock)
+        self.parse_block_tail(lo, BlockCheckMode::Default)
     }
 
     /// Parse a block. Inner attrs are allowed.
@@ -3836,7 +3836,7 @@ impl<'a> Parser<'a> {
         let lo = self.span.lo;
         try!(self.expect(&token::OpenDelim(token::Brace)));
         Ok((try!(self.parse_inner_attributes()),
-         try!(self.parse_block_tail(lo, DefaultBlock))))
+         try!(self.parse_block_tail(lo, BlockCheckMode::Default))))
     }
 
     /// Parse the rest of a block expression or function body

src/libsyntax/print/pprust.rs

@@ -11,7 +11,7 @@
 pub use self::AnnNode::*;
 
 use abi;
-use ast::{self, TokenTree};
+use ast::{self, TokenTree, BlockCheckMode};
 use ast::{RegionTyParamBound, TraitTyParamBound, TraitBoundModifier};
 use ast::Attribute;
 use attr::ThinAttributesExt;
@@ -1684,8 +1684,8 @@ impl<'a> State<'a> {
                                       attrs: &[ast::Attribute],
                                       close_box: bool) -> io::Result<()> {
         match blk.rules {
-            ast::UnsafeBlock(..) => try!(self.word_space("unsafe")),
-            ast::DefaultBlock => ()
+            BlockCheckMode::Unsafe(..) => try!(self.word_space("unsafe")),
+            BlockCheckMode::Default => ()
         }
         try!(self.maybe_print_comment(blk.span.lo));
         try!(self.ann.pre(self, NodeBlock(blk)));
@@ -2610,7 +2610,7 @@ impl<'a> State<'a> {
                 try!(self.print_block_unclosed_indent(&**blk, INDENT_UNIT));
 
                 // If it is a user-provided unsafe block, print a comma after it
-                if let ast::UnsafeBlock(ast::UserProvided) = blk.rules {
+                if let BlockCheckMode::Unsafe(ast::UserProvided) = blk.rules {
                     try!(word(&mut self.s, ","));
                 }
             }

src/libsyntax_ext/deriving/generic/mod.rs

@@ -1266,7 +1266,7 @@ impl<'a> MethodDef<'a> {
                     stmts: vec![],
                     expr: Some(call),
                     id: ast::DUMMY_NODE_ID,
-                    rules: ast::UnsafeBlock(ast::CompilerGenerated),
+                    rules: ast::BlockCheckMode::Unsafe(ast::CompilerGenerated),
                     span: sp }));
 
                 let target_ty = cx.ty_ident(sp, cx.ident_of(target_type_name));
@@ -1302,7 +1302,7 @@ impl<'a> MethodDef<'a> {
                 stmts: vec![],
                 expr: Some(call),
                 id: ast::DUMMY_NODE_ID,
-                rules: ast::UnsafeBlock(ast::CompilerGenerated),
+                rules: ast::BlockCheckMode::Unsafe(ast::CompilerGenerated),
                 span: sp }));
             match_arms.push(cx.arm(sp, vec![cx.pat_wild(sp)], unreachable));