diff options
Diffstat (limited to 'src/libsyntax/parse/parser.rs')
| -rw-r--r-- | src/libsyntax/parse/parser.rs | 541 |
1 files changed, 267 insertions, 274 deletions
diff --git a/src/libsyntax/parse/parser.rs b/src/libsyntax/parse/parser.rs index 82bfc26ee34..e985bfd37b0 100644 --- a/src/libsyntax/parse/parser.rs +++ b/src/libsyntax/parse/parser.rs @@ -10,53 +10,40 @@ pub use self::PathParsingMode::*; -use abi; +use abi::{self, Abi}; use ast::BareFnTy; use ast::{RegionTyParamBound, TraitTyParamBound, TraitBoundModifier}; -use ast::{Public, Unsafety}; -use ast::{Mod, BiAdd, Arg, Arm, Attribute, BindingMode}; -use ast::{BiBitAnd, BiBitOr, BiBitXor, BiRem, BiLt, Block}; -use ast::{BlockCheckMode, CaptureByRef, CaptureByValue, CaptureClause}; -use ast::{Constness, ConstTraitItem, Crate, CrateConfig}; -use ast::{Decl, DeclItem, DeclLocal, DefaultBlock, DefaultReturn}; -use ast::{UnDeref, BiDiv, EMPTY_CTXT, EnumDef, ExplicitSelf}; -use ast::{Expr, Expr_, ExprAddrOf, ExprMatch, ExprAgain}; -use ast::{ExprAssign, ExprAssignOp, ExprBinary, ExprBlock, ExprBox}; -use ast::{ExprBreak, ExprCall, ExprCast, ExprInPlace}; -use ast::{ExprField, ExprTupField, ExprClosure, ExprIf, ExprIfLet, ExprIndex}; -use ast::{ExprLit, ExprLoop, ExprMac, ExprRange}; -use ast::{ExprMethodCall, ExprParen, ExprPath}; -use ast::{ExprRepeat, ExprRet, ExprStruct, ExprTup, ExprType, ExprUnary}; -use ast::{ExprVec, ExprWhile, ExprWhileLet, ExprForLoop, Field, FnDecl}; -use ast::{ForeignItem, ForeignItemStatic, ForeignItemFn, FunctionRetTy}; -use ast::{Ident, Inherited, ImplItem, Item, Item_, ItemStatic}; -use ast::{ItemEnum, ItemFn, ItemForeignMod, ItemImpl, ItemConst}; -use ast::{ItemMac, ItemMod, ItemStruct, ItemTrait, ItemTy, ItemDefaultImpl}; -use ast::{ItemExternCrate, ItemUse}; -use ast::{Lit, Lit_}; -use ast::{LitBool, LitChar, LitByte, LitByteStr}; -use ast::{LitStr, LitInt, Local}; -use ast::{MacStmtWithBraces, MacStmtWithSemicolon, MacStmtWithoutBraces}; -use ast::{MutImmutable, MutMutable, Mac_}; -use ast::{MutTy, BiMul, Mutability}; -use ast::{NamedField, UnNeg, NoReturn, UnNot}; +use ast::Unsafety; +use ast::{Mod, Arg, Arm, Attribute, BindingMode, TraitItemKind}; +use ast::Block; +use ast::{BlockCheckMode, CaptureBy}; +use ast::{Constness, Crate, CrateConfig}; +use ast::{Decl, DeclKind}; +use ast::{EMPTY_CTXT, EnumDef, ExplicitSelf}; +use ast::{Expr, ExprKind}; +use ast::{Field, FnDecl}; +use ast::{ForeignItem, ForeignItemKind, FunctionRetTy}; +use ast::{Ident, ImplItem, Item, ItemKind}; +use ast::{Lit, LitKind, UintTy}; +use ast::Local; +use ast::MacStmtStyle; +use ast::Mac_; +use ast::{MutTy, Mutability}; +use ast::NamedField; use ast::{Pat, PatBox, PatEnum, PatIdent, PatLit, PatQPath, PatMac, PatRange}; use ast::{PatRegion, PatStruct, PatTup, PatVec, PatWild}; use ast::{PolyTraitRef, QSelf}; -use ast::{Return, BiShl, BiShr, Stmt, StmtDecl}; -use ast::{StmtExpr, StmtSemi, StmtMac, VariantData, StructField}; -use ast::{BiSub, StrStyle}; -use ast::{SelfExplicit, SelfRegion, SelfStatic, SelfValue}; +use ast::{Stmt, StmtKind}; +use ast::{VariantData, StructField}; +use ast::StrStyle; +use ast::SelfKind; use ast::{Delimited, SequenceRepetition, TokenTree, TraitItem, TraitRef}; -use ast::{Ty, Ty_, TypeBinding, TyMac}; -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::{Ty, TyKind, TypeBinding, TyParam, TyParamBounds}; +use ast::UnnamedField; use ast::{ViewPath, ViewPathGlob, ViewPathList, ViewPathSimple}; use ast::{Visibility, WhereClause}; use attr::{ThinAttributes, ThinAttributesExt, AttributesExt}; +use ast::{BinOpKind, UnOp}; use ast; use ast_util::{self, ident_to_path}; use codemap::{self, Span, BytePos, Spanned, spanned, mk_sp, CodeMap}; @@ -89,7 +76,7 @@ bitflags! { } } -type ItemInfo = (Ident, Item_, Option<Vec<Attribute> >); +type ItemInfo = (Ident, ItemKind, Option<Vec<Attribute> >); /// How to parse a path. There are four different kinds of paths, all of which /// are parsed somewhat differently. @@ -139,7 +126,7 @@ macro_rules! maybe_whole_expr { _ => unreachable!() }; let span = $p.span; - Some($p.mk_expr(span.lo, span.hi, ExprPath(None, pt), None)) + Some($p.mk_expr(span.lo, span.hi, ExprKind::Path(None, pt), None)) } token::Interpolated(token::NtBlock(_)) => { // FIXME: The following avoids an issue with lexical borrowck scopes, @@ -149,7 +136,7 @@ macro_rules! maybe_whole_expr { _ => unreachable!() }; let span = $p.span; - Some($p.mk_expr(span.lo, span.hi, ExprBlock(b), None)) + Some($p.mk_expr(span.lo, span.hi, ExprKind::Block(b), None)) } _ => None }; @@ -507,7 +494,7 @@ impl<'a> Parser<'a> { pub fn commit_expr(&mut self, e: &Expr, edible: &[token::Token], inedible: &[token::Token]) -> PResult<'a, ()> { debug!("commit_expr {:?}", e); - if let ExprPath(..) = e.node { + if let ExprKind::Path(..) = e.node { // might be unit-struct construction; check for recoverableinput error. let expected = edible.iter() .cloned() @@ -587,11 +574,11 @@ impl<'a> Parser<'a> { let lo = self.span.lo; let node = if self.eat_keyword(keywords::SelfValue) { let rename = try!(self.parse_rename()); - ast::PathListMod { id: ast::DUMMY_NODE_ID, rename: rename } + ast::PathListItemKind::Mod { id: ast::DUMMY_NODE_ID, rename: rename } } else { let ident = try!(self.parse_ident()); let rename = try!(self.parse_rename()); - ast::PathListIdent { name: ident, rename: rename, id: ast::DUMMY_NODE_ID } + ast::PathListItemKind::Ident { name: ident, rename: rename, id: ast::DUMMY_NODE_ID } }; let hi = self.last_span.hi; Ok(spanned(lo, hi, node)) @@ -1063,7 +1050,7 @@ impl<'a> Parser<'a> { } } - pub fn parse_for_in_type(&mut self) -> PResult<'a, Ty_> { + pub fn parse_for_in_type(&mut self) -> PResult<'a, TyKind> { /* Parses whatever can come after a `for` keyword in a type. The `for` has already been consumed. @@ -1102,16 +1089,17 @@ impl<'a> Parser<'a> { Some(TraitTyParamBound(poly_trait_ref, TraitBoundModifier::None)).into_iter() .chain(other_bounds.into_vec()) .collect(); - Ok(ast::TyPolyTraitRef(all_bounds)) + Ok(ast::TyKind::PolyTraitRef(all_bounds)) } } - pub fn parse_ty_path(&mut self) -> PResult<'a, Ty_> { - Ok(TyPath(None, try!(self.parse_path(LifetimeAndTypesWithoutColons)))) + pub fn parse_ty_path(&mut self) -> PResult<'a, TyKind> { + Ok(TyKind::Path(None, try!(self.parse_path(LifetimeAndTypesWithoutColons)))) } - /// parse a TyBareFn type: - pub fn parse_ty_bare_fn(&mut self, lifetime_defs: Vec<ast::LifetimeDef>) -> PResult<'a, Ty_> { + /// parse a TyKind::BareFn type: + pub fn parse_ty_bare_fn(&mut self, lifetime_defs: Vec<ast::LifetimeDef>) + -> PResult<'a, TyKind> { /* [unsafe] [extern "ABI"] fn <'lt> (S) -> T @@ -1126,9 +1114,9 @@ impl<'a> Parser<'a> { let unsafety = try!(self.parse_unsafety()); let abi = if self.eat_keyword(keywords::Extern) { - try!(self.parse_opt_abi()).unwrap_or(abi::C) + try!(self.parse_opt_abi()).unwrap_or(Abi::C) } else { - abi::Rust + Abi::Rust }; try!(self.expect_keyword(keywords::Fn)); @@ -1139,7 +1127,7 @@ impl<'a> Parser<'a> { output: ret_ty, variadic: variadic }); - Ok(TyBareFn(P(BareFnTy { + Ok(TyKind::BareFn(P(BareFnTy { abi: abi, unsafety: unsafety, lifetimes: lifetime_defs, @@ -1199,7 +1187,7 @@ impl<'a> Parser<'a> { let (name, node) = if p.eat_keyword(keywords::Type) { let TyParam {ident, bounds, default, ..} = try!(p.parse_ty_param()); try!(p.expect(&token::Semi)); - (ident, TypeTraitItem(bounds, default)) + (ident, TraitItemKind::Type(bounds, default)) } else if p.is_const_item() { try!(p.expect_keyword(keywords::Const)); let ident = try!(p.parse_ident()); @@ -1214,7 +1202,7 @@ impl<'a> Parser<'a> { try!(p.expect(&token::Semi)); None }; - (ident, ConstTraitItem(ty, default)) + (ident, TraitItemKind::Const(ty, default)) } else { let (constness, unsafety, abi) = try!(p.parse_fn_front_matter()); @@ -1258,7 +1246,7 @@ impl<'a> Parser<'a> { token_str)[..])) } }; - (ident, ast::MethodTraitItem(sig, body)) + (ident, ast::TraitItemKind::Method(sig, body)) }; Ok(P(TraitItem { @@ -1282,13 +1270,13 @@ impl<'a> Parser<'a> { pub fn parse_ret_ty(&mut self) -> PResult<'a, FunctionRetTy> { if self.eat(&token::RArrow) { if self.eat(&token::Not) { - Ok(NoReturn(self.last_span)) + Ok(FunctionRetTy::None(self.last_span)) } else { - Ok(Return(try!(self.parse_ty()))) + Ok(FunctionRetTy::Ty(try!(self.parse_ty()))) } } else { let pos = self.span.lo; - Ok(DefaultReturn(mk_sp(pos, pos))) + Ok(FunctionRetTy::Default(mk_sp(pos, pos))) } } @@ -1313,7 +1301,7 @@ impl<'a> Parser<'a> { } let sp = mk_sp(lo, self.last_span.hi); - let sum = ast::TyObjectSum(lhs, bounds); + let sum = ast::TyKind::ObjectSum(lhs, bounds); Ok(P(Ty {id: ast::DUMMY_NODE_ID, node: sum, span: sp})) } @@ -1344,14 +1332,14 @@ impl<'a> Parser<'a> { try!(self.expect(&token::CloseDelim(token::Paren))); if ts.len() == 1 && !last_comma { - TyParen(ts.into_iter().nth(0).unwrap()) + TyKind::Paren(ts.into_iter().nth(0).unwrap()) } else { - TyTup(ts) + TyKind::Tup(ts) } } else if self.check(&token::BinOp(token::Star)) { // STAR POINTER (bare pointer?) self.bump(); - TyPtr(try!(self.parse_ptr())) + TyKind::Ptr(try!(self.parse_ptr())) } else if self.check(&token::OpenDelim(token::Bracket)) { // VECTOR try!(self.expect(&token::OpenDelim(token::Bracket))); @@ -1360,8 +1348,8 @@ impl<'a> Parser<'a> { // Parse the `; e` in `[ i32; e ]` // where `e` is a const expression let t = match try!(self.maybe_parse_fixed_length_of_vec()) { - None => TyVec(t), - Some(suffix) => TyFixedLengthVec(t, suffix) + None => TyKind::Vec(t), + Some(suffix) => TyKind::FixedLengthVec(t, suffix) }; try!(self.expect(&token::CloseDelim(token::Bracket))); t @@ -1381,13 +1369,13 @@ impl<'a> Parser<'a> { try!(self.expect(&token::OpenDelim(token::Paren))); let e = try!(self.parse_expr()); try!(self.expect(&token::CloseDelim(token::Paren))); - TyTypeof(e) + TyKind::Typeof(e) } else if self.eat_lt() { let (qself, path) = try!(self.parse_qualified_path(NoTypesAllowed)); - TyPath(Some(qself), path) + TyKind::Path(Some(qself), path) } else if self.check(&token::ModSep) || self.token.is_ident() || self.token.is_path() { @@ -1400,14 +1388,14 @@ impl<'a> Parser<'a> { seq_sep_none(), |p| p.parse_token_tree())); let hi = self.span.hi; - TyMac(spanned(lo, hi, Mac_ { path: path, tts: tts, ctxt: EMPTY_CTXT })) + TyKind::Mac(spanned(lo, hi, Mac_ { path: path, tts: tts, ctxt: EMPTY_CTXT })) } else { // NAMED TYPE - TyPath(None, path) + TyKind::Path(None, path) } } else if self.eat(&token::Underscore) { // TYPE TO BE INFERRED - TyInfer + TyKind::Infer } else { let this_token_str = self.this_token_to_string(); let msg = format!("expected type, found `{}`", this_token_str); @@ -1418,26 +1406,26 @@ impl<'a> Parser<'a> { Ok(P(Ty {id: ast::DUMMY_NODE_ID, node: t, span: sp})) } - pub fn parse_borrowed_pointee(&mut self) -> PResult<'a, Ty_> { + pub fn parse_borrowed_pointee(&mut self) -> PResult<'a, TyKind> { // look for `&'lt` or `&'foo ` and interpret `foo` as the region name: let opt_lifetime = try!(self.parse_opt_lifetime()); let mt = try!(self.parse_mt()); - return Ok(TyRptr(opt_lifetime, mt)); + return Ok(TyKind::Rptr(opt_lifetime, mt)); } pub fn parse_ptr(&mut self) -> PResult<'a, MutTy> { let mutbl = if self.eat_keyword(keywords::Mut) { - MutMutable + Mutability::Mutable } else if self.eat_keyword(keywords::Const) { - MutImmutable + Mutability::Immutable } else { let span = self.last_span; self.span_err(span, "bare raw pointers are no longer allowed, you should \ likely use `*mut T`, but otherwise `*T` is now \ known as `*const T`"); - MutImmutable + Mutability::Immutable }; let t = try!(self.parse_ty()); Ok(MutTy { ty: t, mutbl: mutbl }) @@ -1503,7 +1491,7 @@ impl<'a> Parser<'a> { } else { P(Ty { id: ast::DUMMY_NODE_ID, - node: TyInfer, + node: TyKind::Infer, span: mk_sp(self.span.lo, self.span.hi), }) }; @@ -1524,18 +1512,18 @@ impl<'a> Parser<'a> { } /// Matches token_lit = LIT_INTEGER | ... - pub fn lit_from_token(&self, tok: &token::Token) -> PResult<'a, Lit_> { + pub fn lit_from_token(&self, tok: &token::Token) -> PResult<'a, LitKind> { match *tok { token::Interpolated(token::NtExpr(ref v)) => { match v.node { - ExprLit(ref lit) => { Ok(lit.node.clone()) } + ExprKind::Lit(ref lit) => { Ok(lit.node.clone()) } _ => { return self.unexpected_last(tok); } } } token::Literal(lit, suf) => { let (suffix_illegal, out) = match lit { - token::Byte(i) => (true, LitByte(parse::byte_lit(&i.as_str()).0)), - token::Char(i) => (true, LitChar(parse::char_lit(&i.as_str()).0)), + token::Byte(i) => (true, LitKind::Byte(parse::byte_lit(&i.as_str()).0)), + token::Char(i) => (true, LitKind::Char(parse::char_lit(&i.as_str()).0)), // there are some valid suffixes for integer and // float literals, so all the handling is done @@ -1555,20 +1543,20 @@ impl<'a> Parser<'a> { token::Str_(s) => { (true, - LitStr(token::intern_and_get_ident(&parse::str_lit(&s.as_str())), - ast::CookedStr)) + LitKind::Str(token::intern_and_get_ident(&parse::str_lit(&s.as_str())), + ast::StrStyle::Cooked)) } token::StrRaw(s, n) => { (true, - LitStr( + LitKind::Str( token::intern_and_get_ident(&parse::raw_str_lit(&s.as_str())), - ast::RawStr(n))) + ast::StrStyle::Raw(n))) } token::ByteStr(i) => - (true, LitByteStr(parse::byte_str_lit(&i.as_str()))), + (true, LitKind::ByteStr(parse::byte_str_lit(&i.as_str()))), token::ByteStrRaw(i, _) => (true, - LitByteStr(Rc::new(i.to_string().into_bytes()))), + LitKind::ByteStr(Rc::new(i.to_string().into_bytes()))), }; if suffix_illegal { @@ -1586,9 +1574,9 @@ impl<'a> Parser<'a> { pub fn parse_lit(&mut self) -> PResult<'a, Lit> { let lo = self.span.lo; let lit = if self.eat_keyword(keywords::True) { - LitBool(true) + LitKind::Bool(true) } else if self.eat_keyword(keywords::False) { - LitBool(false) + LitKind::Bool(false) } else { let token = self.bump_and_get(); let lit = try!(self.lit_from_token(&token)); @@ -1604,11 +1592,11 @@ impl<'a> Parser<'a> { let lo = self.span.lo; let literal = P(try!(self.parse_lit())); let hi = self.last_span.hi; - let expr = self.mk_expr(lo, hi, ExprLit(literal), None); + let expr = self.mk_expr(lo, hi, ExprKind::Lit(literal), None); if minus_present { let minus_hi = self.last_span.hi; - let unary = self.mk_unary(UnNeg, expr); + let unary = self.mk_unary(UnOp::Neg, expr); Ok(self.mk_expr(minus_lo, minus_hi, unary, None)) } else { Ok(expr) @@ -1935,9 +1923,9 @@ impl<'a> Parser<'a> { /// Parse mutability declaration (mut/const/imm) pub fn parse_mutability(&mut self) -> PResult<'a, Mutability> { if self.eat_keyword(keywords::Mut) { - Ok(MutMutable) + Ok(Mutability::Mutable) } else { - Ok(MutImmutable) + Ok(Mutability::Immutable) } } @@ -1956,7 +1944,7 @@ impl<'a> Parser<'a> { } pub fn mk_expr(&mut self, lo: BytePos, hi: BytePos, - node: Expr_, attrs: ThinAttributes) -> P<Expr> { + node: ExprKind, attrs: ThinAttributes) -> P<Expr> { P(Expr { id: ast::DUMMY_NODE_ID, node: node, @@ -1965,55 +1953,55 @@ impl<'a> Parser<'a> { }) } - pub fn mk_unary(&mut self, unop: ast::UnOp, expr: P<Expr>) -> ast::Expr_ { - ExprUnary(unop, expr) + pub fn mk_unary(&mut self, unop: ast::UnOp, expr: P<Expr>) -> ast::ExprKind { + ExprKind::Unary(unop, expr) } - pub fn mk_binary(&mut self, binop: ast::BinOp, lhs: P<Expr>, rhs: P<Expr>) -> ast::Expr_ { - ExprBinary(binop, lhs, rhs) + pub fn mk_binary(&mut self, binop: ast::BinOp, lhs: P<Expr>, rhs: P<Expr>) -> ast::ExprKind { + ExprKind::Binary(binop, lhs, rhs) } - pub fn mk_call(&mut self, f: P<Expr>, args: Vec<P<Expr>>) -> ast::Expr_ { - ExprCall(f, args) + pub fn mk_call(&mut self, f: P<Expr>, args: Vec<P<Expr>>) -> ast::ExprKind { + ExprKind::Call(f, args) } fn mk_method_call(&mut self, ident: ast::SpannedIdent, tps: Vec<P<Ty>>, args: Vec<P<Expr>>) - -> ast::Expr_ { - ExprMethodCall(ident, tps, args) + -> ast::ExprKind { + ExprKind::MethodCall(ident, tps, args) } - pub fn mk_index(&mut self, expr: P<Expr>, idx: P<Expr>) -> ast::Expr_ { - ExprIndex(expr, idx) + pub fn mk_index(&mut self, expr: P<Expr>, idx: P<Expr>) -> ast::ExprKind { + ExprKind::Index(expr, idx) } pub fn mk_range(&mut self, start: Option<P<Expr>>, end: Option<P<Expr>>) - -> ast::Expr_ { - ExprRange(start, end) + -> ast::ExprKind { + ExprKind::Range(start, end) } - pub fn mk_field(&mut self, expr: P<Expr>, ident: ast::SpannedIdent) -> ast::Expr_ { - ExprField(expr, ident) + pub fn mk_field(&mut self, expr: P<Expr>, ident: ast::SpannedIdent) -> ast::ExprKind { + ExprKind::Field(expr, ident) } - pub fn mk_tup_field(&mut self, expr: P<Expr>, idx: codemap::Spanned<usize>) -> ast::Expr_ { - ExprTupField(expr, idx) + pub fn mk_tup_field(&mut self, expr: P<Expr>, idx: codemap::Spanned<usize>) -> ast::ExprKind { + ExprKind::TupField(expr, idx) } pub fn mk_assign_op(&mut self, binop: ast::BinOp, - lhs: P<Expr>, rhs: P<Expr>) -> ast::Expr_ { - ExprAssignOp(binop, lhs, rhs) + lhs: P<Expr>, rhs: P<Expr>) -> ast::ExprKind { + ExprKind::AssignOp(binop, lhs, rhs) } pub fn mk_mac_expr(&mut self, lo: BytePos, hi: BytePos, m: Mac_, attrs: ThinAttributes) -> P<Expr> { P(Expr { id: ast::DUMMY_NODE_ID, - node: ExprMac(codemap::Spanned {node: m, span: mk_sp(lo, hi)}), + node: ExprKind::Mac(codemap::Spanned {node: m, span: mk_sp(lo, hi)}), span: mk_sp(lo, hi), attrs: attrs, }) @@ -2022,13 +2010,13 @@ impl<'a> Parser<'a> { pub fn mk_lit_u32(&mut self, i: u32, attrs: ThinAttributes) -> P<Expr> { let span = &self.span; let lv_lit = P(codemap::Spanned { - node: LitInt(i as u64, ast::UnsignedIntLit(TyU32)), + node: LitKind::Int(i as u64, ast::LitIntType::Unsigned(UintTy::U32)), span: *span }); P(Expr { id: ast::DUMMY_NODE_ID, - node: ExprLit(lv_lit), + node: ExprKind::Lit(lv_lit), span: *span, attrs: attrs, }) @@ -2065,7 +2053,7 @@ impl<'a> Parser<'a> { let lo = self.span.lo; let mut hi = self.span.hi; - let ex: Expr_; + let ex: ExprKind; // Note: when adding new syntax here, don't forget to adjust Token::can_begin_expr(). match self.token { @@ -2097,17 +2085,17 @@ impl<'a> Parser<'a> { hi = self.last_span.hi; return if es.len() == 1 && !trailing_comma { - Ok(self.mk_expr(lo, hi, ExprParen(es.into_iter().nth(0).unwrap()), attrs)) + Ok(self.mk_expr(lo, hi, ExprKind::Paren(es.into_iter().nth(0).unwrap()), attrs)) } else { - Ok(self.mk_expr(lo, hi, ExprTup(es), attrs)) + Ok(self.mk_expr(lo, hi, ExprKind::Tup(es), attrs)) } }, 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; - return self.parse_lambda_expr(lo, CaptureByRef, attrs); + return self.parse_lambda_expr(lo, CaptureBy::Ref, attrs); }, token::Ident(id @ ast::Ident { name: token::SELF_KEYWORD_NAME, @@ -2115,7 +2103,7 @@ impl<'a> Parser<'a> { }, token::Plain) => { self.bump(); let path = ast_util::ident_to_path(mk_sp(lo, hi), id); - ex = ExprPath(None, path); + ex = ExprKind::Path(None, path); hi = self.last_span.hi; } token::OpenDelim(token::Bracket) => { @@ -2128,7 +2116,7 @@ impl<'a> Parser<'a> { if self.check(&token::CloseDelim(token::Bracket)) { // Empty vector. self.bump(); - ex = ExprVec(Vec::new()); + ex = ExprKind::Vec(Vec::new()); } else { // Nonempty vector. let first_expr = try!(self.parse_expr()); @@ -2137,7 +2125,7 @@ impl<'a> Parser<'a> { self.bump(); let count = try!(self.parse_expr()); try!(self.expect(&token::CloseDelim(token::Bracket))); - ex = ExprRepeat(first_expr, count); + ex = ExprKind::Repeat(first_expr, count); } else if self.check(&token::Comma) { // Vector with two or more elements. self.bump(); @@ -2148,11 +2136,11 @@ impl<'a> Parser<'a> { )); let mut exprs = vec!(first_expr); exprs.extend(remaining_exprs); - ex = ExprVec(exprs); + ex = ExprKind::Vec(exprs); } else { // Vector with one element. try!(self.expect(&token::CloseDelim(token::Bracket))); - ex = ExprVec(vec!(first_expr)); + ex = ExprKind::Vec(vec!(first_expr)); } } hi = self.last_span.hi; @@ -2162,11 +2150,11 @@ impl<'a> Parser<'a> { let (qself, path) = try!(self.parse_qualified_path(LifetimeAndTypesWithColons)); hi = path.span.hi; - return Ok(self.mk_expr(lo, hi, ExprPath(Some(qself), path), attrs)); + return Ok(self.mk_expr(lo, hi, ExprKind::Path(Some(qself), path), attrs)); } if self.eat_keyword(keywords::Move) { let lo = self.last_span.lo; - return self.parse_lambda_expr(lo, CaptureByValue, attrs); + return self.parse_lambda_expr(lo, CaptureBy::Value, attrs); } if self.eat_keyword(keywords::If) { return self.parse_if_expr(attrs); @@ -2201,14 +2189,14 @@ impl<'a> Parser<'a> { } if self.eat_keyword(keywords::Continue) { let ex = if self.token.is_lifetime() { - let ex = ExprAgain(Some(Spanned{ + let ex = ExprKind::Again(Some(Spanned{ node: self.get_lifetime(), span: self.span })); self.bump(); ex } else { - ExprAgain(None) + ExprKind::Again(None) }; let hi = self.last_span.hi; return Ok(self.mk_expr(lo, hi, ex, attrs)); @@ -2219,26 +2207,26 @@ 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) { if self.token.can_begin_expr() { let e = try!(self.parse_expr()); hi = e.span.hi; - ex = ExprRet(Some(e)); + ex = ExprKind::Ret(Some(e)); } else { - ex = ExprRet(None); + ex = ExprKind::Ret(None); } } else if self.eat_keyword(keywords::Break) { if self.token.is_lifetime() { - ex = ExprBreak(Some(Spanned { + ex = ExprKind::Break(Some(Spanned { node: self.get_lifetime(), span: self.span })); self.bump(); } else { - ex = ExprBreak(None); + ex = ExprKind::Break(None); } hi = self.last_span.hi; } else if self.token.is_keyword(keywords::Let) { @@ -2301,18 +2289,18 @@ impl<'a> Parser<'a> { hi = self.span.hi; try!(self.expect(&token::CloseDelim(token::Brace))); - ex = ExprStruct(pth, fields, base); + ex = ExprKind::Struct(pth, fields, base); return Ok(self.mk_expr(lo, hi, ex, attrs)); } } hi = pth.span.hi; - ex = ExprPath(None, pth); + ex = ExprKind::Path(None, pth); } else { // other literal expression let lit = try!(self.parse_lit()); hi = lit.span.hi; - ex = ExprLit(P(lit)); + ex = ExprKind::Lit(P(lit)); } } } @@ -2342,7 +2330,7 @@ impl<'a> Parser<'a> { let attrs = outer_attrs.append(inner_attrs); let blk = try!(self.parse_block_tail(lo, blk_mode)); - return Ok(self.mk_expr(blk.span.lo, blk.span.hi, ExprBlock(blk), attrs)); + return Ok(self.mk_expr(blk.span.lo, blk.span.hi, ExprKind::Block(blk), attrs)); } /// parse a.b or a(13) or a[4] or just a @@ -2369,7 +2357,7 @@ impl<'a> Parser<'a> { expr.map(|mut expr| { expr.attrs.update(|a| a.prepend(attrs)); match expr.node { - ExprIf(..) | ExprIfLet(..) => { + ExprKind::If(..) | ExprKind::IfLet(..) => { if !expr.attrs.as_attr_slice().is_empty() { // Just point to the first attribute in there... let span = expr.attrs.as_attr_slice()[0].span; @@ -2610,11 +2598,11 @@ impl<'a> Parser<'a> { match parser.token { token::BinOp(token::Star) => { parser.bump(); - Ok(Some(ast::ZeroOrMore)) + Ok(Some(ast::KleeneOp::ZeroOrMore)) }, token::BinOp(token::Plus) => { parser.bump(); - Ok(Some(ast::OneOrMore)) + Ok(Some(ast::KleeneOp::OneOrMore)) }, _ => Ok(None) } @@ -2740,21 +2728,21 @@ impl<'a> Parser<'a> { let e = self.parse_prefix_expr(None); let (span, e) = try!(self.interpolated_or_expr_span(e)); hi = span.hi; - self.mk_unary(UnNot, e) + self.mk_unary(UnOp::Not, e) } token::BinOp(token::Minus) => { self.bump(); let e = self.parse_prefix_expr(None); let (span, e) = try!(self.interpolated_or_expr_span(e)); hi = span.hi; - self.mk_unary(UnNeg, e) + self.mk_unary(UnOp::Neg, e) } token::BinOp(token::Star) => { self.bump(); let e = self.parse_prefix_expr(None); let (span, e) = try!(self.interpolated_or_expr_span(e)); hi = span.hi; - self.mk_unary(UnDeref, e) + self.mk_unary(UnOp::Deref, e) } token::BinOp(token::And) | token::AndAnd => { try!(self.expect_and()); @@ -2762,7 +2750,7 @@ impl<'a> Parser<'a> { let e = self.parse_prefix_expr(None); let (span, e) = try!(self.interpolated_or_expr_span(e)); hi = span.hi; - ExprAddrOf(m, e) + ExprKind::AddrOf(m, e) } token::Ident(..) if self.token.is_keyword(keywords::In) => { self.bump(); @@ -2773,16 +2761,16 @@ impl<'a> Parser<'a> { let blk = try!(self.parse_block()); let span = blk.span; hi = span.hi; - let blk_expr = self.mk_expr(span.lo, span.hi, ExprBlock(blk), + let blk_expr = self.mk_expr(span.lo, span.hi, ExprKind::Block(blk), None); - ExprInPlace(place, blk_expr) + ExprKind::InPlace(place, blk_expr) } token::Ident(..) if self.token.is_keyword(keywords::Box) => { self.bump(); let e = self.parse_prefix_expr(None); let (span, e) = try!(self.interpolated_or_expr_span(e)); hi = span.hi; - ExprBox(e) + ExprKind::Box(e) } _ => return self.parse_dot_or_call_expr(Some(attrs)) }; @@ -2849,12 +2837,12 @@ impl<'a> Parser<'a> { if op == AssocOp::As { let rhs = try!(self.parse_ty()); lhs = self.mk_expr(lhs_span.lo, rhs.span.hi, - ExprCast(lhs, rhs), None); + ExprKind::Cast(lhs, rhs), None); continue } else if op == AssocOp::Colon { let rhs = try!(self.parse_ty()); lhs = self.mk_expr(lhs_span.lo, rhs.span.hi, - ExprType(lhs, rhs), None); + ExprKind::Type(lhs, rhs), None); continue } else if op == AssocOp::DotDot { // If we didn’t have to handle `x..`, it would be pretty easy to generalise @@ -2920,21 +2908,21 @@ impl<'a> Parser<'a> { self.mk_expr(lhs_span.lo, rhs_span.hi, binary, None) } AssocOp::Assign => - self.mk_expr(lhs_span.lo, rhs.span.hi, ExprAssign(lhs, rhs), None), + self.mk_expr(lhs_span.lo, rhs.span.hi, ExprKind::Assign(lhs, rhs), None), AssocOp::Inplace => - self.mk_expr(lhs_span.lo, rhs.span.hi, ExprInPlace(lhs, rhs), None), + self.mk_expr(lhs_span.lo, rhs.span.hi, ExprKind::InPlace(lhs, rhs), None), AssocOp::AssignOp(k) => { let aop = match k { - token::Plus => BiAdd, - token::Minus => BiSub, - token::Star => BiMul, - token::Slash => BiDiv, - token::Percent => BiRem, - token::Caret => BiBitXor, - token::And => BiBitAnd, - token::Or => BiBitOr, - token::Shl => BiShl, - token::Shr => BiShr + token::Plus => BinOpKind::Add, + token::Minus => BinOpKind::Sub, + token::Star => BinOpKind::Mul, + token::Slash => BinOpKind::Div, + token::Percent => BinOpKind::Rem, + token::Caret => BinOpKind::BitXor, + token::And => BinOpKind::BitAnd, + token::Or => BinOpKind::BitOr, + token::Shl => BinOpKind::Shl, + token::Shr => BinOpKind::Shr, }; let (lhs_span, rhs_span) = (lhs_span, rhs.span); let aopexpr = self.mk_assign_op(codemap::respan(cur_op_span, aop), lhs, rhs); @@ -2956,12 +2944,12 @@ impl<'a> Parser<'a> { fn check_no_chained_comparison(&mut self, lhs: &Expr, outer_op: &AssocOp) { debug_assert!(outer_op.is_comparison()); match lhs.node { - ExprBinary(op, _, _) if op.node.is_comparison() => { + ExprKind::Binary(op, _, _) if op.node.is_comparison() => { // respan to include both operators let op_span = mk_sp(op.span.lo, self.span.hi); let mut err = self.diagnostic().struct_span_err(op_span, "chained comparison operators require parentheses"); - if op.node == BiLt && *outer_op == AssocOp::Greater { + if op.node == BinOpKind::Lt && *outer_op == AssocOp::Greater { err.fileline_help(op_span, "use `::<...>` instead of `<...>` if you meant to specify type arguments"); } @@ -3023,7 +3011,7 @@ impl<'a> Parser<'a> { hi = elexpr.span.hi; els = Some(elexpr); } - Ok(self.mk_expr(lo, hi, ExprIf(cond, thn, els), attrs)) + Ok(self.mk_expr(lo, hi, ExprKind::If(cond, thn, els), attrs)) } /// Parse an 'if let' expression ('if' token already eaten) @@ -3041,18 +3029,18 @@ impl<'a> Parser<'a> { } else { (thn.span.hi, None) }; - Ok(self.mk_expr(lo, hi, ExprIfLet(pat, expr, thn, els), attrs)) + Ok(self.mk_expr(lo, hi, ExprKind::IfLet(pat, expr, thn, els), attrs)) } // `|args| expr` pub fn parse_lambda_expr(&mut self, lo: BytePos, - capture_clause: CaptureClause, + capture_clause: CaptureBy, attrs: ThinAttributes) -> PResult<'a, P<Expr>> { let decl = try!(self.parse_fn_block_decl()); let body = match decl.output { - DefaultReturn(_) => { + FunctionRetTy::Default(_) => { // If no explicit return type is given, parse any // expr and wrap it up in a dummy block: let body_expr = try!(self.parse_expr()); @@ -3061,7 +3049,7 @@ impl<'a> Parser<'a> { stmts: vec![], span: body_expr.span, expr: Some(body_expr), - rules: DefaultBlock, + rules: BlockCheckMode::Default, }) } _ => { @@ -3074,7 +3062,7 @@ impl<'a> Parser<'a> { Ok(self.mk_expr( lo, body.span.hi, - ExprClosure(capture_clause, decl, body), attrs)) + ExprKind::Closure(capture_clause, decl, body), attrs)) } // `else` token already eaten @@ -3083,7 +3071,7 @@ impl<'a> Parser<'a> { return self.parse_if_expr(None); } else { let blk = try!(self.parse_block()); - return Ok(self.mk_expr(blk.span.lo, blk.span.hi, ExprBlock(blk), None)); + return Ok(self.mk_expr(blk.span.lo, blk.span.hi, ExprKind::Block(blk), None)); } } @@ -3102,7 +3090,7 @@ impl<'a> Parser<'a> { let hi = self.last_span.hi; Ok(self.mk_expr(span_lo, hi, - ExprForLoop(pat, expr, loop_block, opt_ident), + ExprKind::ForLoop(pat, expr, loop_block, opt_ident), attrs)) } @@ -3117,7 +3105,7 @@ impl<'a> Parser<'a> { let (iattrs, body) = try!(self.parse_inner_attrs_and_block()); let attrs = attrs.append(iattrs.into_thin_attrs()); let hi = body.span.hi; - return Ok(self.mk_expr(span_lo, hi, ExprWhile(cond, body, opt_ident), + return Ok(self.mk_expr(span_lo, hi, ExprKind::While(cond, body, opt_ident), attrs)); } @@ -3132,7 +3120,7 @@ impl<'a> Parser<'a> { let (iattrs, body) = try!(self.parse_inner_attrs_and_block()); let attrs = attrs.append(iattrs.into_thin_attrs()); let hi = body.span.hi; - return Ok(self.mk_expr(span_lo, hi, ExprWhileLet(pat, expr, body, opt_ident), attrs)); + return Ok(self.mk_expr(span_lo, hi, ExprKind::WhileLet(pat, expr, body, opt_ident), attrs)); } // parse `loop {...}`, `loop` token already eaten @@ -3142,7 +3130,7 @@ impl<'a> Parser<'a> { let (iattrs, body) = try!(self.parse_inner_attrs_and_block()); let attrs = attrs.append(iattrs.into_thin_attrs()); let hi = body.span.hi; - Ok(self.mk_expr(span_lo, hi, ExprLoop(body, opt_ident), attrs)) + Ok(self.mk_expr(span_lo, hi, ExprKind::Loop(body, opt_ident), attrs)) } // `match` token already eaten @@ -3166,7 +3154,7 @@ impl<'a> Parser<'a> { } let hi = self.span.hi; self.bump(); - return Ok(self.mk_expr(lo, hi, ExprMatch(discriminant, arms), attrs)); + return Ok(self.mk_expr(lo, hi, ExprKind::Match(discriminant, arms), attrs)); } pub fn parse_arm(&mut self) -> PResult<'a, Arm> { @@ -3361,10 +3349,10 @@ impl<'a> Parser<'a> { hi = self.last_span.hi; let bind_type = match (is_ref, is_mut) { - (true, true) => BindingMode::ByRef(MutMutable), - (true, false) => BindingMode::ByRef(MutImmutable), - (false, true) => BindingMode::ByValue(MutMutable), - (false, false) => BindingMode::ByValue(MutImmutable), + (true, true) => BindingMode::ByRef(Mutability::Mutable), + (true, false) => BindingMode::ByRef(Mutability::Immutable), + (false, true) => BindingMode::ByValue(Mutability::Mutable), + (false, false) => BindingMode::ByValue(Mutability::Immutable), }; let fieldpath = codemap::Spanned{span:self.last_span, node:fieldname}; let fieldpat = P(ast::Pat{ @@ -3406,7 +3394,7 @@ impl<'a> Parser<'a> { (None, try!(self.parse_path(LifetimeAndTypesWithColons))) }; let hi = self.last_span.hi; - Ok(self.mk_expr(lo, hi, ExprPath(qself, path), None)) + Ok(self.mk_expr(lo, hi, ExprKind::Path(qself, path), None)) } else { self.parse_pat_literal_maybe_minus() } @@ -3459,7 +3447,7 @@ impl<'a> Parser<'a> { // At this point, token != _, &, &&, (, [ if self.eat_keyword(keywords::Mut) { // Parse mut ident @ pat - pat = try!(self.parse_pat_ident(BindingMode::ByValue(MutMutable))); + pat = try!(self.parse_pat_ident(BindingMode::ByValue(Mutability::Mutable))); } else if self.eat_keyword(keywords::Ref) { // Parse ref ident @ pat / ref mut ident @ pat let mutbl = try!(self.parse_mutability()); @@ -3492,7 +3480,8 @@ impl<'a> Parser<'a> { // Parse ident @ pat // This can give false positives and parse nullary enums, // they are dealt with later in resolve - pat = try!(self.parse_pat_ident(BindingMode::ByValue(MutImmutable))); + let binding_mode = BindingMode::ByValue(Mutability::Immutable); + pat = try!(self.parse_pat_ident(binding_mode)); } } else { let (qself, path) = if self.eat_lt() { @@ -3508,7 +3497,7 @@ impl<'a> Parser<'a> { token::DotDotDot => { // Parse range let hi = self.last_span.hi; - let begin = self.mk_expr(lo, hi, ExprPath(qself, path), None); + let begin = self.mk_expr(lo, hi, ExprKind::Path(qself, path), None); self.bump(); let end = try!(self.parse_pat_range_end()); pat = PatRange(begin, end); @@ -3635,15 +3624,15 @@ impl<'a> Parser<'a> { fn parse_let(&mut self, attrs: ThinAttributes) -> PResult<'a, P<Decl>> { let lo = self.span.lo; let local = try!(self.parse_local(attrs)); - Ok(P(spanned(lo, self.last_span.hi, DeclLocal(local)))) + Ok(P(spanned(lo, self.last_span.hi, DeclKind::Local(local)))) } /// Parse a structure field fn parse_name_and_ty(&mut self, pr: Visibility, attrs: Vec<Attribute> ) -> PResult<'a, StructField> { let lo = match pr { - Inherited => self.span.lo, - Public => self.last_span.lo, + Visibility::Inherited => self.span.lo, + Visibility::Public => self.last_span.lo, }; if !self.token.is_plain_ident() { return Err(self.fatal("expected ident")); @@ -3686,7 +3675,7 @@ impl<'a> Parser<'a> { try!(self.expect_keyword(keywords::Let)); let decl = try!(self.parse_let(attrs.into_thin_attrs())); let hi = decl.span.hi; - let stmt = StmtDecl(decl, ast::DUMMY_NODE_ID); + let stmt = StmtKind::Decl(decl, ast::DUMMY_NODE_ID); spanned(lo, hi, stmt) } else if self.token.is_ident() && !self.token.is_any_keyword() @@ -3732,23 +3721,20 @@ impl<'a> Parser<'a> { let hi = self.last_span.hi; let style = if delim == token::Brace { - MacStmtWithBraces + MacStmtStyle::Braces } else { - MacStmtWithoutBraces + MacStmtStyle::NoBraces }; if id.name == token::special_idents::invalid.name { - let stmt = StmtMac(P(spanned(lo, - hi, - Mac_ { path: pth, tts: tts, ctxt: EMPTY_CTXT })), - style, - attrs.into_thin_attrs()); + let mac = P(spanned(lo, hi, Mac_ { path: pth, tts: tts, ctxt: EMPTY_CTXT })); + let stmt = StmtKind::Mac(mac, style, attrs.into_thin_attrs()); spanned(lo, hi, stmt) } else { // if it has a special ident, it's definitely an item // // Require a semicolon or braces. - if style != MacStmtWithBraces { + if style != MacStmtStyle::Braces { if !self.eat(&token::Semi) { let last_span = self.last_span; self.span_err(last_span, @@ -3757,13 +3743,13 @@ impl<'a> Parser<'a> { followed by a semicolon"); } } - spanned(lo, hi, StmtDecl( - P(spanned(lo, hi, DeclItem( + spanned(lo, hi, StmtKind::Decl( + P(spanned(lo, hi, DeclKind::Item( self.mk_item( lo, hi, id /*id is good here*/, - ItemMac(spanned(lo, hi, + ItemKind::Mac(spanned(lo, hi, Mac_ { path: pth, tts: tts, ctxt: EMPTY_CTXT })), - Inherited, attrs)))), + Visibility::Inherited, attrs)))), ast::DUMMY_NODE_ID)) } } else { @@ -3771,8 +3757,8 @@ impl<'a> Parser<'a> { match try!(self.parse_item_(attrs.clone(), false, true)) { Some(i) => { let hi = i.span.hi; - let decl = P(spanned(lo, hi, DeclItem(i))); - spanned(lo, hi, StmtDecl(decl, ast::DUMMY_NODE_ID)) + let decl = P(spanned(lo, hi, DeclKind::Item(i))); + spanned(lo, hi, StmtKind::Decl(decl, ast::DUMMY_NODE_ID)) } None => { let unused_attrs = |attrs: &[_], s: &mut Self| { @@ -3798,7 +3784,7 @@ impl<'a> Parser<'a> { let e = try!(self.parse_expr_res( Restrictions::RESTRICTION_STMT_EXPR, Some(attrs.into_thin_attrs()))); let hi = e.span.hi; - let stmt = StmtExpr(e, ast::DUMMY_NODE_ID); + let stmt = StmtKind::Expr(e, ast::DUMMY_NODE_ID); spanned(lo, hi, stmt) } } @@ -3825,7 +3811,7 @@ 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. @@ -3835,7 +3821,7 @@ 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 @@ -3852,16 +3838,16 @@ impl<'a> Parser<'a> { continue; }; match node { - StmtExpr(e, _) => { + StmtKind::Expr(e, _) => { try!(self.handle_expression_like_statement(e, span, &mut stmts, &mut expr)); } - StmtMac(mac, MacStmtWithoutBraces, attrs) => { + StmtKind::Mac(mac, MacStmtStyle::NoBraces, attrs) => { // statement macro without braces; might be an // expr depending on whether a semicolon follows match self.token { token::Semi => { stmts.push(P(Spanned { - node: StmtMac(mac, MacStmtWithSemicolon, attrs), + node: StmtKind::Mac(mac, MacStmtStyle::Semicolon, attrs), span: mk_sp(span.lo, self.span.hi), })); self.bump(); @@ -3881,12 +3867,12 @@ impl<'a> Parser<'a> { } } } - StmtMac(m, style, attrs) => { + StmtKind::Mac(m, style, attrs) => { // statement macro; might be an expr match self.token { token::Semi => { stmts.push(P(Spanned { - node: StmtMac(m, MacStmtWithSemicolon, attrs), + node: StmtKind::Mac(m, MacStmtStyle::Semicolon, attrs), span: mk_sp(span.lo, self.span.hi), })); self.bump(); @@ -3900,7 +3886,7 @@ impl<'a> Parser<'a> { } _ => { stmts.push(P(Spanned { - node: StmtMac(m, style, attrs), + node: StmtKind::Mac(m, style, attrs), span: span })); } @@ -3952,14 +3938,14 @@ impl<'a> Parser<'a> { expn_id: span.expn_id, }; stmts.push(P(Spanned { - node: StmtSemi(e, ast::DUMMY_NODE_ID), + node: StmtKind::Semi(e, ast::DUMMY_NODE_ID), span: span_with_semi, })); } token::CloseDelim(token::Brace) => *last_block_expr = Some(e), _ => { stmts.push(P(Spanned { - node: StmtExpr(e, ast::DUMMY_NODE_ID), + node: StmtKind::Expr(e, ast::DUMMY_NODE_ID), span: span })); } @@ -4410,7 +4396,7 @@ impl<'a> Parser<'a> { F: FnMut(&mut Parser<'a>) -> PResult<'a, Arg>, { fn maybe_parse_borrowed_explicit_self<'b>(this: &mut Parser<'b>) - -> PResult<'b, ast::ExplicitSelf_> { + -> PResult<'b, ast::SelfKind> { // The following things are possible to see here: // // fn(&mut self) @@ -4422,26 +4408,27 @@ impl<'a> Parser<'a> { if this.look_ahead(1, |t| t.is_keyword(keywords::SelfValue)) { this.bump(); - Ok(SelfRegion(None, MutImmutable, try!(this.expect_self_ident()))) + Ok(SelfKind::Region(None, Mutability::Immutable, try!(this.expect_self_ident()))) } else if this.look_ahead(1, |t| t.is_mutability()) && this.look_ahead(2, |t| t.is_keyword(keywords::SelfValue)) { this.bump(); let mutability = try!(this.parse_mutability()); - Ok(SelfRegion(None, mutability, try!(this.expect_self_ident()))) + Ok(SelfKind::Region(None, mutability, try!(this.expect_self_ident()))) } else if this.look_ahead(1, |t| t.is_lifetime()) && this.look_ahead(2, |t| t.is_keyword(keywords::SelfValue)) { this.bump(); let lifetime = try!(this.parse_lifetime()); - Ok(SelfRegion(Some(lifetime), MutImmutable, try!(this.expect_self_ident()))) + let ident = try!(this.expect_self_ident()); + Ok(SelfKind::Region(Some(lifetime), Mutability::Immutable, ident)) } else if this.look_ahead(1, |t| t.is_lifetime()) && this.look_ahead(2, |t| t.is_mutability()) && this.look_ahead(3, |t| t.is_keyword(keywords::SelfValue)) { this.bump(); let lifetime = try!(this.parse_lifetime()); let mutability = try!(this.parse_mutability()); - Ok(SelfRegion(Some(lifetime), mutability, try!(this.expect_self_ident()))) + Ok(SelfKind::Region(Some(lifetime), mutability, try!(this.expect_self_ident()))) } else { - Ok(SelfStatic) + Ok(SelfKind::Static) } } @@ -4453,7 +4440,7 @@ impl<'a> Parser<'a> { let mut self_ident_lo = self.span.lo; let mut self_ident_hi = self.span.hi; - let mut mutbl_self = MutImmutable; + let mut mutbl_self = Mutability::Immutable; let explicit_self = match self.token { token::BinOp(token::And) => { let eself = try!(maybe_parse_borrowed_explicit_self(self)); @@ -4468,7 +4455,7 @@ impl<'a> Parser<'a> { let _mutability = if self.token.is_mutability() { try!(self.parse_mutability()) } else { - MutImmutable + Mutability::Immutable }; if self.is_self_ident() { let span = self.span; @@ -4476,7 +4463,7 @@ impl<'a> Parser<'a> { self.bump(); } // error case, making bogus self ident: - SelfValue(special_idents::self_) + SelfKind::Value(special_idents::self_) } token::Ident(..) => { if self.is_self_ident() { @@ -4485,9 +4472,9 @@ impl<'a> Parser<'a> { // Determine whether this is the fully explicit form, `self: // TYPE`. if self.eat(&token::Colon) { - SelfExplicit(try!(self.parse_ty_sum()), self_ident) + SelfKind::Explicit(try!(self.parse_ty_sum()), self_ident) } else { - SelfValue(self_ident) + SelfKind::Value(self_ident) } } else if self.token.is_mutability() && self.look_ahead(1, |t| t.is_keyword(keywords::SelfValue)) { @@ -4497,15 +4484,15 @@ impl<'a> Parser<'a> { // Determine whether this is the fully explicit form, // `self: TYPE`. if self.eat(&token::Colon) { - SelfExplicit(try!(self.parse_ty_sum()), self_ident) + SelfKind::Explicit(try!(self.parse_ty_sum()), self_ident) } else { - SelfValue(self_ident) + SelfKind::Value(self_ident) } } else { - SelfStatic + SelfKind::Static } } - _ => SelfStatic, + _ => SelfKind::Static, }; let explicit_self_sp = mk_sp(self_ident_lo, self_ident_hi); @@ -4541,14 +4528,14 @@ impl<'a> Parser<'a> { } let fn_inputs = match explicit_self { - SelfStatic => { + SelfKind::Static => { let sep = seq_sep_trailing_allowed(token::Comma); try!(self.parse_seq_to_before_end(&token::CloseDelim(token::Paren), sep, parse_arg_fn)) } - SelfValue(id) => parse_remaining_arguments!(id), - SelfRegion(_,_,id) => parse_remaining_arguments!(id), - SelfExplicit(_,id) => parse_remaining_arguments!(id), + SelfKind::Value(id) => parse_remaining_arguments!(id), + SelfKind::Region(_,_,id) => parse_remaining_arguments!(id), + SelfKind::Explicit(_,id) => parse_remaining_arguments!(id), }; @@ -4601,7 +4588,7 @@ impl<'a> Parser<'a> { } fn mk_item(&mut self, lo: BytePos, hi: BytePos, ident: Ident, - node: Item_, vis: Visibility, + node: ItemKind, vis: Visibility, attrs: Vec<Attribute>) -> P<Item> { P(Item { ident: ident, @@ -4623,7 +4610,7 @@ impl<'a> Parser<'a> { let decl = try!(self.parse_fn_decl(false)); generics.where_clause = try!(self.parse_where_clause()); let (inner_attrs, body) = try!(self.parse_inner_attrs_and_block()); - Ok((ident, ItemFn(decl, unsafety, constness, abi, generics, body), Some(inner_attrs))) + Ok((ident, ItemKind::Fn(decl, unsafety, constness, abi, generics, body), Some(inner_attrs))) } /// true if we are looking at `const ID`, false for things like `const fn` etc @@ -4646,12 +4633,12 @@ impl<'a> Parser<'a> { let is_const_fn = self.eat_keyword(keywords::Const); let unsafety = try!(self.parse_unsafety()); let (constness, unsafety, abi) = if is_const_fn { - (Constness::Const, unsafety, abi::Rust) + (Constness::Const, unsafety, Abi::Rust) } else { let abi = if self.eat_keyword(keywords::Extern) { - try!(self.parse_opt_abi()).unwrap_or(abi::C) + try!(self.parse_opt_abi()).unwrap_or(Abi::C) } else { - abi::Rust + Abi::Rust }; (Constness::NotConst, unsafety, abi) }; @@ -4699,7 +4686,7 @@ impl<'a> Parser<'a> { fn complain_if_pub_macro(&mut self, visa: Visibility, span: Span) { match visa { - Public => { + Visibility::Public => { let is_macro_rules: bool = match self.token { token::Ident(sid, _) => sid.name == intern("macro_rules"), _ => false, @@ -4717,7 +4704,7 @@ impl<'a> Parser<'a> { .emit(); } } - Inherited => (), + Visibility::Inherited => (), } } @@ -4783,7 +4770,7 @@ impl<'a> Parser<'a> { tps.where_clause = try!(self.parse_where_clause()); let meths = try!(self.parse_trait_items()); - Ok((ident, ItemTrait(unsafety, tps, bounds, meths), None)) + Ok((ident, ItemKind::Trait(unsafety, tps, bounds, meths), None)) } /// Parses items implementations variants @@ -4814,7 +4801,7 @@ impl<'a> Parser<'a> { let opt_trait = if could_be_trait && self.eat_keyword(keywords::For) { // New-style trait. Reinterpret the type as a trait. match ty.node { - TyPath(None, ref path) => { + TyKind::Path(None, ref path) => { Some(TraitRef { path: (*path).clone(), ref_id: ty.id, @@ -4846,7 +4833,7 @@ impl<'a> Parser<'a> { try!(self.expect(&token::OpenDelim(token::Brace))); try!(self.expect(&token::CloseDelim(token::Brace))); Ok((ast_util::impl_pretty_name(&opt_trait, None), - ItemDefaultImpl(unsafety, opt_trait.unwrap()), None)) + ItemKind::DefaultImpl(unsafety, opt_trait.unwrap()), None)) } else { if opt_trait.is_some() { ty = try!(self.parse_ty_sum()); @@ -4862,7 +4849,7 @@ impl<'a> Parser<'a> { } Ok((ast_util::impl_pretty_name(&opt_trait, Some(&*ty)), - ItemImpl(unsafety, polarity, generics, opt_trait, ty, impl_items), + ItemKind::Impl(unsafety, polarity, generics, opt_trait, ty, impl_items), Some(attrs))) } } @@ -4947,7 +4934,7 @@ impl<'a> Parser<'a> { name, found `{}`", token_str))) }; - Ok((class_name, ItemStruct(vdata, generics), None)) + Ok((class_name, ItemKind::Struct(vdata, generics), None)) } pub fn parse_record_struct_body(&mut self, @@ -4987,7 +4974,7 @@ impl<'a> Parser<'a> { if parse_pub == ParsePub::Yes { try!(p.parse_visibility()) } else { - Inherited + Visibility::Inherited } ), id: ast::DUMMY_NODE_ID, @@ -5033,16 +5020,16 @@ impl<'a> Parser<'a> { let span = self.last_span; self.span_err(span, "`pub` is not allowed here"); } - return self.parse_single_struct_field(Public, attrs); + return self.parse_single_struct_field(Visibility::Public, attrs); } - return self.parse_single_struct_field(Inherited, attrs); + return self.parse_single_struct_field(Visibility::Inherited, attrs); } /// Parse visibility: PUB or nothing fn parse_visibility(&mut self) -> PResult<'a, Visibility> { - if self.eat_keyword(keywords::Pub) { Ok(Public) } - else { Ok(Inherited) } + if self.eat_keyword(keywords::Pub) { Ok(Visibility::Public) } + else { Ok(Visibility::Inherited) } } /// Given a termination token, parse all of the items in a module @@ -5077,8 +5064,8 @@ impl<'a> Parser<'a> { let e = try!(self.parse_expr()); try!(self.commit_expr_expecting(&*e, token::Semi)); let item = match m { - Some(m) => ItemStatic(ty, m, e), - None => ItemConst(ty, e), + Some(m) => ItemKind::Static(ty, m, e), + None => ItemKind::Const(ty, e), }; Ok((id, item, None)) } @@ -5102,7 +5089,7 @@ impl<'a> Parser<'a> { let m = try!(self.parse_mod_items(&token::CloseDelim(token::Brace), mod_inner_lo)); self.owns_directory = old_owns_directory; self.pop_mod_path(); - Ok((id, ItemMod(m), Some(attrs))) + Ok((id, ItemKind::Mod(m), Some(attrs))) } } @@ -5208,7 +5195,7 @@ impl<'a> Parser<'a> { id: ast::Ident, outer_attrs: &[ast::Attribute], id_sp: Span) - -> PResult<'a, (ast::Item_, Vec<ast::Attribute> )> { + -> PResult<'a, (ast::ItemKind, Vec<ast::Attribute> )> { let ModulePathSuccess { path, owns_directory } = try!(self.submod_path(id, outer_attrs, id_sp)); @@ -5223,7 +5210,7 @@ impl<'a> Parser<'a> { path: PathBuf, owns_directory: bool, name: String, - id_sp: Span) -> PResult<'a, (ast::Item_, Vec<ast::Attribute> )> { + id_sp: Span) -> PResult<'a, (ast::ItemKind, Vec<ast::Attribute> )> { let mut included_mod_stack = self.sess.included_mod_stack.borrow_mut(); match included_mod_stack.iter().position(|p| *p == path) { Some(i) => { @@ -5251,7 +5238,7 @@ impl<'a> Parser<'a> { let mod_attrs = try!(p0.parse_inner_attributes()); let m0 = try!(p0.parse_mod_items(&token::Eof, mod_inner_lo)); self.sess.included_mod_stack.borrow_mut().pop(); - Ok((ast::ItemMod(m0), mod_attrs)) + Ok((ast::ItemKind::Mod(m0), mod_attrs)) } /// Parse a function declaration from a foreign module @@ -5267,7 +5254,7 @@ impl<'a> Parser<'a> { Ok(P(ast::ForeignItem { ident: ident, attrs: attrs, - node: ForeignItemFn(decl, generics), + node: ForeignItemKind::Fn(decl, generics), id: ast::DUMMY_NODE_ID, span: mk_sp(lo, hi), vis: vis @@ -5288,7 +5275,7 @@ impl<'a> Parser<'a> { Ok(P(ForeignItem { ident: ident, attrs: attrs, - node: ForeignItemStatic(ty, mutbl), + node: ForeignItemKind::Static(ty, mutbl), id: ast::DUMMY_NODE_ID, span: mk_sp(lo, hi), vis: vis @@ -5317,7 +5304,7 @@ impl<'a> Parser<'a> { let last_span = self.last_span; - if visibility == ast::Public { + if visibility == ast::Visibility::Public { self.span_warn(mk_sp(lo, last_span.hi), "`pub extern crate` does not work as expected and should not be used. \ Likely to become an error. Prefer `extern crate` and `pub use`."); @@ -5326,7 +5313,7 @@ impl<'a> Parser<'a> { Ok(self.mk_item(lo, last_span.hi, ident, - ItemExternCrate(maybe_path), + ItemKind::ExternCrate(maybe_path), visibility, attrs)) } @@ -5349,7 +5336,7 @@ impl<'a> Parser<'a> { -> PResult<'a, P<Item>> { try!(self.expect(&token::OpenDelim(token::Brace))); - let abi = opt_abi.unwrap_or(abi::C); + let abi = opt_abi.unwrap_or(Abi::C); attrs.extend(try!(self.parse_inner_attributes())); @@ -5367,7 +5354,7 @@ impl<'a> Parser<'a> { Ok(self.mk_item(lo, last_span.hi, special_idents::invalid, - ItemForeignMod(m), + ItemKind::ForeignMod(m), visibility, attrs)) } @@ -5380,7 +5367,7 @@ impl<'a> Parser<'a> { try!(self.expect(&token::Eq)); let ty = try!(self.parse_ty_sum()); try!(self.expect(&token::Semi)); - Ok((ident, ItemTy(ty, tps), None)) + Ok((ident, ItemKind::Ty(ty, tps), None)) } /// Parse the part of an "enum" decl following the '{' @@ -5441,7 +5428,7 @@ impl<'a> Parser<'a> { try!(self.expect(&token::OpenDelim(token::Brace))); let enum_definition = try!(self.parse_enum_def(&generics)); - Ok((id, ItemEnum(enum_definition, generics), None)) + Ok((id, ItemKind::Enum(enum_definition, generics), None)) } /// Parses a string as an ABI spec on an extern type or module. Consumes @@ -5499,7 +5486,7 @@ impl<'a> Parser<'a> { if self.eat_keyword(keywords::Use) { // USE ITEM - let item_ = ItemUse(try!(self.parse_view_path())); + let item_ = ItemKind::Use(try!(self.parse_view_path())); try!(self.expect(&token::Semi)); let last_span = self.last_span; @@ -5521,7 +5508,7 @@ impl<'a> Parser<'a> { if self.eat_keyword(keywords::Fn) { // EXTERN FUNCTION ITEM - let abi = opt_abi.unwrap_or(abi::C); + let abi = opt_abi.unwrap_or(Abi::C); let (ident, item_, extra_attrs) = try!(self.parse_item_fn(Unsafety::Normal, Constness::NotConst, abi)); let last_span = self.last_span; @@ -5541,7 +5528,11 @@ impl<'a> Parser<'a> { if self.eat_keyword(keywords::Static) { // STATIC ITEM - let m = if self.eat_keyword(keywords::Mut) {MutMutable} else {MutImmutable}; + let m = if self.eat_keyword(keywords::Mut) { + Mutability::Mutable + } else { + Mutability::Immutable + }; let (ident, item_, extra_attrs) = try!(self.parse_item_const(Some(m))); let last_span = self.last_span; let item = self.mk_item(lo, @@ -5564,7 +5555,7 @@ impl<'a> Parser<'a> { }; self.bump(); let (ident, item_, extra_attrs) = - try!(self.parse_item_fn(unsafety, Constness::Const, abi::Rust)); + try!(self.parse_item_fn(unsafety, Constness::Const, Abi::Rust)); let last_span = self.last_span; let item = self.mk_item(lo, last_span.hi, @@ -5629,7 +5620,7 @@ impl<'a> Parser<'a> { // FUNCTION ITEM self.bump(); let (ident, item_, extra_attrs) = - try!(self.parse_item_fn(Unsafety::Normal, Constness::NotConst, abi::Rust)); + try!(self.parse_item_fn(Unsafety::Normal, Constness::NotConst, Abi::Rust)); let last_span = self.last_span; let item = self.mk_item(lo, last_span.hi, @@ -5644,9 +5635,9 @@ impl<'a> Parser<'a> { // UNSAFE FUNCTION ITEM self.bump(); let abi = if self.eat_keyword(keywords::Extern) { - try!(self.parse_opt_abi()).unwrap_or(abi::C) + try!(self.parse_opt_abi()).unwrap_or(Abi::C) } else { - abi::Rust + Abi::Rust }; try!(self.expect_keyword(keywords::Fn)); let (ident, item_, extra_attrs) = @@ -5815,7 +5806,7 @@ impl<'a> Parser<'a> { } } - let item_ = ItemMac(m); + let item_ = ItemKind::Mac(m); let last_span = self.last_span; let item = self.mk_item(lo, last_span.hi, @@ -5828,8 +5819,8 @@ impl<'a> Parser<'a> { // FAILURE TO PARSE ITEM match visibility { - Inherited => {} - Public => { + Visibility::Inherited => {} + Visibility::Public => { let last_span = self.last_span; return Err(self.span_fatal(last_span, "unmatched visibility `pub`")); } @@ -5975,10 +5966,12 @@ impl<'a> Parser<'a> { Option<ast::Name>)> { let ret = match self.token { token::Literal(token::Str_(s), suf) => { - (self.id_to_interned_str(ast::Ident::with_empty_ctxt(s)), ast::CookedStr, suf) + let s = self.id_to_interned_str(ast::Ident::with_empty_ctxt(s)); + (s, ast::StrStyle::Cooked, suf) } token::Literal(token::StrRaw(s, n), suf) => { - (self.id_to_interned_str(ast::Ident::with_empty_ctxt(s)), ast::RawStr(n), suf) + let s = self.id_to_interned_str(ast::Ident::with_empty_ctxt(s)); + (s, ast::StrStyle::Raw(n), suf) } _ => return None }; |