| // Copyright 2012 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. |
| |
| use abi::Abi; |
| use ast::{self, Ident, Generics, Expr, BlockCheckMode, UnOp, PatKind}; |
| use attr; |
| use syntax_pos::{Span, DUMMY_SP, Pos}; |
| use codemap::{respan, Spanned}; |
| use ext::base::ExtCtxt; |
| use parse::token::{self, keywords, InternedString}; |
| use ptr::P; |
| |
| // Transitional reexports so qquote can find the paths it is looking for |
| mod syntax { |
| pub use ext; |
| pub use parse; |
| } |
| |
| pub trait AstBuilder { |
| // paths |
| fn path(&self, span: Span, strs: Vec<ast::Ident> ) -> ast::Path; |
| fn path_ident(&self, span: Span, id: ast::Ident) -> ast::Path; |
| fn path_global(&self, span: Span, strs: Vec<ast::Ident> ) -> ast::Path; |
| fn path_all(&self, sp: Span, |
| global: bool, |
| idents: Vec<ast::Ident> , |
| lifetimes: Vec<ast::Lifetime>, |
| types: Vec<P<ast::Ty>>, |
| bindings: Vec<ast::TypeBinding> ) |
| -> ast::Path; |
| |
| fn qpath(&self, self_type: P<ast::Ty>, |
| trait_path: ast::Path, |
| ident: ast::Ident) |
| -> (ast::QSelf, ast::Path); |
| fn qpath_all(&self, self_type: P<ast::Ty>, |
| trait_path: ast::Path, |
| ident: ast::Ident, |
| lifetimes: Vec<ast::Lifetime>, |
| types: Vec<P<ast::Ty>>, |
| bindings: Vec<ast::TypeBinding>) |
| -> (ast::QSelf, ast::Path); |
| |
| // types |
| fn ty_mt(&self, ty: P<ast::Ty>, mutbl: ast::Mutability) -> ast::MutTy; |
| |
| fn ty(&self, span: Span, ty: ast::TyKind) -> P<ast::Ty>; |
| fn ty_path(&self, ast::Path) -> P<ast::Ty>; |
| fn ty_sum(&self, ast::Path, ast::TyParamBounds) -> P<ast::Ty>; |
| fn ty_ident(&self, span: Span, idents: ast::Ident) -> P<ast::Ty>; |
| |
| fn ty_rptr(&self, span: Span, |
| ty: P<ast::Ty>, |
| lifetime: Option<ast::Lifetime>, |
| mutbl: ast::Mutability) -> P<ast::Ty>; |
| fn ty_ptr(&self, span: Span, |
| ty: P<ast::Ty>, |
| mutbl: ast::Mutability) -> P<ast::Ty>; |
| |
| fn ty_option(&self, ty: P<ast::Ty>) -> P<ast::Ty>; |
| fn ty_infer(&self, sp: Span) -> P<ast::Ty>; |
| |
| fn ty_vars(&self, ty_params: &P<[ast::TyParam]>) -> Vec<P<ast::Ty>> ; |
| fn ty_vars_global(&self, ty_params: &P<[ast::TyParam]>) -> Vec<P<ast::Ty>> ; |
| |
| fn typaram(&self, |
| span: Span, |
| id: ast::Ident, |
| bounds: ast::TyParamBounds, |
| default: Option<P<ast::Ty>>) -> ast::TyParam; |
| |
| fn trait_ref(&self, path: ast::Path) -> ast::TraitRef; |
| fn poly_trait_ref(&self, span: Span, path: ast::Path) -> ast::PolyTraitRef; |
| fn typarambound(&self, path: ast::Path) -> ast::TyParamBound; |
| fn lifetime(&self, span: Span, ident: ast::Name) -> ast::Lifetime; |
| fn lifetime_def(&self, |
| span: Span, |
| name: ast::Name, |
| bounds: Vec<ast::Lifetime>) |
| -> ast::LifetimeDef; |
| |
| // statements |
| fn stmt_expr(&self, expr: P<ast::Expr>) -> ast::Stmt; |
| fn stmt_semi(&self, expr: P<ast::Expr>) -> ast::Stmt; |
| fn stmt_let(&self, sp: Span, mutbl: bool, ident: ast::Ident, ex: P<ast::Expr>) -> ast::Stmt; |
| fn stmt_let_typed(&self, |
| sp: Span, |
| mutbl: bool, |
| ident: ast::Ident, |
| typ: P<ast::Ty>, |
| ex: P<ast::Expr>) |
| -> P<ast::Stmt>; |
| fn stmt_item(&self, sp: Span, item: P<ast::Item>) -> ast::Stmt; |
| |
| // blocks |
| fn block(&self, span: Span, stmts: Vec<ast::Stmt>) -> P<ast::Block>; |
| fn block_expr(&self, expr: P<ast::Expr>) -> P<ast::Block>; |
| |
| // expressions |
| fn expr(&self, span: Span, node: ast::ExprKind) -> P<ast::Expr>; |
| fn expr_path(&self, path: ast::Path) -> P<ast::Expr>; |
| fn expr_qpath(&self, span: Span, qself: ast::QSelf, path: ast::Path) -> P<ast::Expr>; |
| fn expr_ident(&self, span: Span, id: ast::Ident) -> P<ast::Expr>; |
| |
| fn expr_self(&self, span: Span) -> P<ast::Expr>; |
| fn expr_binary(&self, sp: Span, op: ast::BinOpKind, |
| lhs: P<ast::Expr>, rhs: P<ast::Expr>) -> P<ast::Expr>; |
| fn expr_deref(&self, sp: Span, e: P<ast::Expr>) -> P<ast::Expr>; |
| fn expr_unary(&self, sp: Span, op: ast::UnOp, e: P<ast::Expr>) -> P<ast::Expr>; |
| |
| fn expr_addr_of(&self, sp: Span, e: P<ast::Expr>) -> P<ast::Expr>; |
| fn expr_mut_addr_of(&self, sp: Span, e: P<ast::Expr>) -> P<ast::Expr>; |
| fn expr_field_access(&self, span: Span, expr: P<ast::Expr>, ident: ast::Ident) -> P<ast::Expr>; |
| fn expr_tup_field_access(&self, sp: Span, expr: P<ast::Expr>, |
| idx: usize) -> P<ast::Expr>; |
| fn expr_call(&self, span: Span, expr: P<ast::Expr>, args: Vec<P<ast::Expr>>) -> P<ast::Expr>; |
| fn expr_call_ident(&self, span: Span, id: ast::Ident, args: Vec<P<ast::Expr>>) -> P<ast::Expr>; |
| fn expr_call_global(&self, sp: Span, fn_path: Vec<ast::Ident>, |
| args: Vec<P<ast::Expr>> ) -> P<ast::Expr>; |
| fn expr_method_call(&self, span: Span, |
| expr: P<ast::Expr>, ident: ast::Ident, |
| args: Vec<P<ast::Expr>> ) -> P<ast::Expr>; |
| fn expr_block(&self, b: P<ast::Block>) -> P<ast::Expr>; |
| fn expr_cast(&self, sp: Span, expr: P<ast::Expr>, ty: P<ast::Ty>) -> P<ast::Expr>; |
| |
| fn field_imm(&self, span: Span, name: Ident, e: P<ast::Expr>) -> ast::Field; |
| fn expr_struct(&self, span: Span, path: ast::Path, fields: Vec<ast::Field>) -> P<ast::Expr>; |
| fn expr_struct_ident(&self, span: Span, id: ast::Ident, |
| fields: Vec<ast::Field>) -> P<ast::Expr>; |
| |
| fn expr_lit(&self, sp: Span, lit: ast::LitKind) -> P<ast::Expr>; |
| |
| fn expr_usize(&self, span: Span, i: usize) -> P<ast::Expr>; |
| fn expr_isize(&self, sp: Span, i: isize) -> P<ast::Expr>; |
| fn expr_u8(&self, sp: Span, u: u8) -> P<ast::Expr>; |
| fn expr_u32(&self, sp: Span, u: u32) -> P<ast::Expr>; |
| fn expr_bool(&self, sp: Span, value: bool) -> P<ast::Expr>; |
| |
| fn expr_vec(&self, sp: Span, exprs: Vec<P<ast::Expr>>) -> P<ast::Expr>; |
| fn expr_vec_ng(&self, sp: Span) -> P<ast::Expr>; |
| fn expr_vec_slice(&self, sp: Span, exprs: Vec<P<ast::Expr>>) -> P<ast::Expr>; |
| fn expr_str(&self, sp: Span, s: InternedString) -> P<ast::Expr>; |
| |
| fn expr_some(&self, sp: Span, expr: P<ast::Expr>) -> P<ast::Expr>; |
| fn expr_none(&self, sp: Span) -> P<ast::Expr>; |
| |
| fn expr_break(&self, sp: Span) -> P<ast::Expr>; |
| |
| fn expr_tuple(&self, sp: Span, exprs: Vec<P<ast::Expr>>) -> P<ast::Expr>; |
| |
| fn expr_fail(&self, span: Span, msg: InternedString) -> P<ast::Expr>; |
| fn expr_unreachable(&self, span: Span) -> P<ast::Expr>; |
| |
| fn expr_ok(&self, span: Span, expr: P<ast::Expr>) -> P<ast::Expr>; |
| fn expr_err(&self, span: Span, expr: P<ast::Expr>) -> P<ast::Expr>; |
| fn expr_try(&self, span: Span, head: P<ast::Expr>) -> P<ast::Expr>; |
| |
| fn pat(&self, span: Span, pat: PatKind) -> P<ast::Pat>; |
| fn pat_wild(&self, span: Span) -> P<ast::Pat>; |
| fn pat_lit(&self, span: Span, expr: P<ast::Expr>) -> P<ast::Pat>; |
| fn pat_ident(&self, span: Span, ident: ast::Ident) -> P<ast::Pat>; |
| |
| fn pat_ident_binding_mode(&self, |
| span: Span, |
| ident: ast::Ident, |
| bm: ast::BindingMode) -> P<ast::Pat>; |
| fn pat_enum(&self, span: Span, path: ast::Path, subpats: Vec<P<ast::Pat>> ) -> P<ast::Pat>; |
| fn pat_struct(&self, span: Span, |
| path: ast::Path, field_pats: Vec<Spanned<ast::FieldPat>> ) -> P<ast::Pat>; |
| fn pat_tuple(&self, span: Span, pats: Vec<P<ast::Pat>>) -> P<ast::Pat>; |
| |
| fn pat_some(&self, span: Span, pat: P<ast::Pat>) -> P<ast::Pat>; |
| fn pat_none(&self, span: Span) -> P<ast::Pat>; |
| |
| fn pat_ok(&self, span: Span, pat: P<ast::Pat>) -> P<ast::Pat>; |
| fn pat_err(&self, span: Span, pat: P<ast::Pat>) -> P<ast::Pat>; |
| |
| fn arm(&self, span: Span, pats: Vec<P<ast::Pat>>, expr: P<ast::Expr>) -> ast::Arm; |
| fn arm_unreachable(&self, span: Span) -> ast::Arm; |
| |
| fn expr_match(&self, span: Span, arg: P<ast::Expr>, arms: Vec<ast::Arm> ) -> P<ast::Expr>; |
| fn expr_if(&self, span: Span, |
| cond: P<ast::Expr>, then: P<ast::Expr>, els: Option<P<ast::Expr>>) -> P<ast::Expr>; |
| fn expr_loop(&self, span: Span, block: P<ast::Block>) -> P<ast::Expr>; |
| |
| fn lambda_fn_decl(&self, |
| span: Span, |
| fn_decl: P<ast::FnDecl>, |
| blk: P<ast::Block>, |
| fn_decl_span: Span) |
| -> P<ast::Expr>; |
| |
| fn lambda(&self, span: Span, ids: Vec<ast::Ident>, blk: P<ast::Block>) -> P<ast::Expr>; |
| fn lambda0(&self, span: Span, blk: P<ast::Block>) -> P<ast::Expr>; |
| fn lambda1(&self, span: Span, blk: P<ast::Block>, ident: ast::Ident) -> P<ast::Expr>; |
| |
| fn lambda_expr(&self, span: Span, ids: Vec<ast::Ident> , blk: P<ast::Expr>) -> P<ast::Expr>; |
| fn lambda_expr_0(&self, span: Span, expr: P<ast::Expr>) -> P<ast::Expr>; |
| fn lambda_expr_1(&self, span: Span, expr: P<ast::Expr>, ident: ast::Ident) -> P<ast::Expr>; |
| |
| fn lambda_stmts(&self, span: Span, ids: Vec<ast::Ident>, |
| blk: Vec<ast::Stmt>) -> P<ast::Expr>; |
| fn lambda_stmts_0(&self, span: Span, stmts: Vec<ast::Stmt>) -> P<ast::Expr>; |
| fn lambda_stmts_1(&self, span: Span, stmts: Vec<ast::Stmt>, |
| ident: ast::Ident) -> P<ast::Expr>; |
| |
| // items |
| fn item(&self, span: Span, |
| name: Ident, attrs: Vec<ast::Attribute> , node: ast::ItemKind) -> P<ast::Item>; |
| |
| fn arg(&self, span: Span, name: Ident, ty: P<ast::Ty>) -> ast::Arg; |
| // FIXME unused self |
| fn fn_decl(&self, inputs: Vec<ast::Arg> , output: P<ast::Ty>) -> P<ast::FnDecl>; |
| |
| fn item_fn_poly(&self, |
| span: Span, |
| name: Ident, |
| inputs: Vec<ast::Arg> , |
| output: P<ast::Ty>, |
| generics: Generics, |
| body: P<ast::Block>) -> P<ast::Item>; |
| fn item_fn(&self, |
| span: Span, |
| name: Ident, |
| inputs: Vec<ast::Arg> , |
| output: P<ast::Ty>, |
| body: P<ast::Block>) -> P<ast::Item>; |
| |
| fn variant(&self, span: Span, name: Ident, tys: Vec<P<ast::Ty>> ) -> ast::Variant; |
| fn item_enum_poly(&self, |
| span: Span, |
| name: Ident, |
| enum_definition: ast::EnumDef, |
| generics: Generics) -> P<ast::Item>; |
| fn item_enum(&self, span: Span, name: Ident, enum_def: ast::EnumDef) -> P<ast::Item>; |
| |
| fn item_struct_poly(&self, |
| span: Span, |
| name: Ident, |
| struct_def: ast::VariantData, |
| generics: Generics) -> P<ast::Item>; |
| fn item_struct(&self, span: Span, name: Ident, struct_def: ast::VariantData) -> P<ast::Item>; |
| |
| fn item_mod(&self, span: Span, inner_span: Span, |
| name: Ident, attrs: Vec<ast::Attribute>, |
| items: Vec<P<ast::Item>>) -> P<ast::Item>; |
| |
| fn item_static(&self, |
| span: Span, |
| name: Ident, |
| ty: P<ast::Ty>, |
| mutbl: ast::Mutability, |
| expr: P<ast::Expr>) |
| -> P<ast::Item>; |
| |
| fn item_const(&self, |
| span: Span, |
| name: Ident, |
| ty: P<ast::Ty>, |
| expr: P<ast::Expr>) |
| -> P<ast::Item>; |
| |
| fn item_ty_poly(&self, |
| span: Span, |
| name: Ident, |
| ty: P<ast::Ty>, |
| generics: Generics) -> P<ast::Item>; |
| fn item_ty(&self, span: Span, name: Ident, ty: P<ast::Ty>) -> P<ast::Item>; |
| |
| fn attribute(&self, sp: Span, mi: P<ast::MetaItem>) -> ast::Attribute; |
| |
| fn meta_word(&self, sp: Span, w: InternedString) -> P<ast::MetaItem>; |
| fn meta_list(&self, |
| sp: Span, |
| name: InternedString, |
| mis: Vec<P<ast::MetaItem>> ) |
| -> P<ast::MetaItem>; |
| fn meta_name_value(&self, |
| sp: Span, |
| name: InternedString, |
| value: ast::LitKind) |
| -> P<ast::MetaItem>; |
| |
| fn item_use(&self, sp: Span, |
| vis: ast::Visibility, vp: P<ast::ViewPath>) -> P<ast::Item>; |
| fn item_use_simple(&self, sp: Span, vis: ast::Visibility, path: ast::Path) -> P<ast::Item>; |
| fn item_use_simple_(&self, sp: Span, vis: ast::Visibility, |
| ident: ast::Ident, path: ast::Path) -> P<ast::Item>; |
| fn item_use_list(&self, sp: Span, vis: ast::Visibility, |
| path: Vec<ast::Ident>, imports: &[ast::Ident]) -> P<ast::Item>; |
| fn item_use_glob(&self, sp: Span, |
| vis: ast::Visibility, path: Vec<ast::Ident>) -> P<ast::Item>; |
| } |
| |
| impl<'a> AstBuilder for ExtCtxt<'a> { |
| fn path(&self, span: Span, strs: Vec<ast::Ident> ) -> ast::Path { |
| self.path_all(span, false, strs, Vec::new(), Vec::new(), Vec::new()) |
| } |
| fn path_ident(&self, span: Span, id: ast::Ident) -> ast::Path { |
| self.path(span, vec!(id)) |
| } |
| fn path_global(&self, span: Span, strs: Vec<ast::Ident> ) -> ast::Path { |
| self.path_all(span, true, strs, Vec::new(), Vec::new(), Vec::new()) |
| } |
| fn path_all(&self, |
| sp: Span, |
| global: bool, |
| mut idents: Vec<ast::Ident> , |
| lifetimes: Vec<ast::Lifetime>, |
| types: Vec<P<ast::Ty>>, |
| bindings: Vec<ast::TypeBinding> ) |
| -> ast::Path { |
| let last_identifier = idents.pop().unwrap(); |
| let mut segments: Vec<ast::PathSegment> = idents.into_iter() |
| .map(|ident| { |
| ast::PathSegment { |
| identifier: ident, |
| parameters: ast::PathParameters::none(), |
| } |
| }).collect(); |
| segments.push(ast::PathSegment { |
| identifier: last_identifier, |
| parameters: ast::PathParameters::AngleBracketed(ast::AngleBracketedParameterData { |
| lifetimes: lifetimes, |
| types: P::from_vec(types), |
| bindings: P::from_vec(bindings), |
| }) |
| }); |
| ast::Path { |
| span: sp, |
| global: global, |
| segments: segments, |
| } |
| } |
| |
| /// Constructs a qualified path. |
| /// |
| /// Constructs a path like `<self_type as trait_path>::ident`. |
| fn qpath(&self, |
| self_type: P<ast::Ty>, |
| trait_path: ast::Path, |
| ident: ast::Ident) |
| -> (ast::QSelf, ast::Path) { |
| self.qpath_all(self_type, trait_path, ident, vec![], vec![], vec![]) |
| } |
| |
| /// Constructs a qualified path. |
| /// |
| /// Constructs a path like `<self_type as trait_path>::ident<'a, T, A=Bar>`. |
| fn qpath_all(&self, |
| self_type: P<ast::Ty>, |
| trait_path: ast::Path, |
| ident: ast::Ident, |
| lifetimes: Vec<ast::Lifetime>, |
| types: Vec<P<ast::Ty>>, |
| bindings: Vec<ast::TypeBinding>) |
| -> (ast::QSelf, ast::Path) { |
| let mut path = trait_path; |
| path.segments.push(ast::PathSegment { |
| identifier: ident, |
| parameters: ast::PathParameters::AngleBracketed(ast::AngleBracketedParameterData { |
| lifetimes: lifetimes, |
| types: P::from_vec(types), |
| bindings: P::from_vec(bindings), |
| }) |
| }); |
| |
| (ast::QSelf { |
| ty: self_type, |
| position: path.segments.len() - 1 |
| }, path) |
| } |
| |
| fn ty_mt(&self, ty: P<ast::Ty>, mutbl: ast::Mutability) -> ast::MutTy { |
| ast::MutTy { |
| ty: ty, |
| mutbl: mutbl |
| } |
| } |
| |
| fn ty(&self, span: Span, ty: ast::TyKind) -> P<ast::Ty> { |
| P(ast::Ty { |
| id: ast::DUMMY_NODE_ID, |
| span: span, |
| node: ty |
| }) |
| } |
| |
| fn ty_path(&self, path: ast::Path) -> P<ast::Ty> { |
| self.ty(path.span, ast::TyKind::Path(None, path)) |
| } |
| |
| fn ty_sum(&self, path: ast::Path, bounds: ast::TyParamBounds) -> P<ast::Ty> { |
| self.ty(path.span, |
| ast::TyKind::ObjectSum(self.ty_path(path), |
| bounds)) |
| } |
| |
| // Might need to take bounds as an argument in the future, if you ever want |
| // to generate a bounded existential trait type. |
| fn ty_ident(&self, span: Span, ident: ast::Ident) |
| -> P<ast::Ty> { |
| self.ty_path(self.path_ident(span, ident)) |
| } |
| |
| fn ty_rptr(&self, |
| span: Span, |
| ty: P<ast::Ty>, |
| lifetime: Option<ast::Lifetime>, |
| mutbl: ast::Mutability) |
| -> P<ast::Ty> { |
| self.ty(span, |
| ast::TyKind::Rptr(lifetime, self.ty_mt(ty, mutbl))) |
| } |
| |
| fn ty_ptr(&self, |
| span: Span, |
| ty: P<ast::Ty>, |
| mutbl: ast::Mutability) |
| -> P<ast::Ty> { |
| self.ty(span, |
| ast::TyKind::Ptr(self.ty_mt(ty, mutbl))) |
| } |
| |
| fn ty_option(&self, ty: P<ast::Ty>) -> P<ast::Ty> { |
| self.ty_path( |
| self.path_all(DUMMY_SP, |
| true, |
| self.std_path(&["option", "Option"]), |
| Vec::new(), |
| vec!( ty ), |
| Vec::new())) |
| } |
| |
| fn ty_infer(&self, span: Span) -> P<ast::Ty> { |
| self.ty(span, ast::TyKind::Infer) |
| } |
| |
| fn typaram(&self, |
| span: Span, |
| id: ast::Ident, |
| bounds: ast::TyParamBounds, |
| default: Option<P<ast::Ty>>) -> ast::TyParam { |
| ast::TyParam { |
| ident: id, |
| id: ast::DUMMY_NODE_ID, |
| bounds: bounds, |
| default: default, |
| span: span |
| } |
| } |
| |
| // these are strange, and probably shouldn't be used outside of |
| // pipes. Specifically, the global version possible generates |
| // incorrect code. |
| fn ty_vars(&self, ty_params: &P<[ast::TyParam]>) -> Vec<P<ast::Ty>> { |
| ty_params.iter().map(|p| self.ty_ident(DUMMY_SP, p.ident)).collect() |
| } |
| |
| fn ty_vars_global(&self, ty_params: &P<[ast::TyParam]>) -> Vec<P<ast::Ty>> { |
| ty_params |
| .iter() |
| .map(|p| self.ty_path(self.path_global(DUMMY_SP, vec!(p.ident)))) |
| .collect() |
| } |
| |
| fn trait_ref(&self, path: ast::Path) -> ast::TraitRef { |
| ast::TraitRef { |
| path: path, |
| ref_id: ast::DUMMY_NODE_ID, |
| } |
| } |
| |
| fn poly_trait_ref(&self, span: Span, path: ast::Path) -> ast::PolyTraitRef { |
| ast::PolyTraitRef { |
| bound_lifetimes: Vec::new(), |
| trait_ref: self.trait_ref(path), |
| span: span, |
| } |
| } |
| |
| fn typarambound(&self, path: ast::Path) -> ast::TyParamBound { |
| ast::TraitTyParamBound(self.poly_trait_ref(path.span, path), ast::TraitBoundModifier::None) |
| } |
| |
| fn lifetime(&self, span: Span, name: ast::Name) -> ast::Lifetime { |
| ast::Lifetime { id: ast::DUMMY_NODE_ID, span: span, name: name } |
| } |
| |
| fn lifetime_def(&self, |
| span: Span, |
| name: ast::Name, |
| bounds: Vec<ast::Lifetime>) |
| -> ast::LifetimeDef { |
| ast::LifetimeDef { |
| lifetime: self.lifetime(span, name), |
| bounds: bounds |
| } |
| } |
| |
| fn stmt_expr(&self, expr: P<ast::Expr>) -> ast::Stmt { |
| ast::Stmt { |
| id: ast::DUMMY_NODE_ID, |
| span: expr.span, |
| node: ast::StmtKind::Expr(expr), |
| } |
| } |
| |
| fn stmt_semi(&self, expr: P<ast::Expr>) -> ast::Stmt { |
| ast::Stmt { |
| id: ast::DUMMY_NODE_ID, |
| span: expr.span, |
| node: ast::StmtKind::Semi(expr), |
| } |
| } |
| |
| fn stmt_let(&self, sp: Span, mutbl: bool, ident: ast::Ident, |
| ex: P<ast::Expr>) -> ast::Stmt { |
| let pat = if mutbl { |
| let binding_mode = ast::BindingMode::ByValue(ast::Mutability::Mutable); |
| self.pat_ident_binding_mode(sp, ident, binding_mode) |
| } else { |
| self.pat_ident(sp, ident) |
| }; |
| let local = P(ast::Local { |
| pat: pat, |
| ty: None, |
| init: Some(ex), |
| id: ast::DUMMY_NODE_ID, |
| span: sp, |
| attrs: ast::ThinVec::new(), |
| }); |
| ast::Stmt { |
| id: ast::DUMMY_NODE_ID, |
| node: ast::StmtKind::Local(local), |
| span: sp, |
| } |
| } |
| |
| fn stmt_let_typed(&self, |
| sp: Span, |
| mutbl: bool, |
| ident: ast::Ident, |
| typ: P<ast::Ty>, |
| ex: P<ast::Expr>) |
| -> P<ast::Stmt> { |
| let pat = if mutbl { |
| let binding_mode = ast::BindingMode::ByValue(ast::Mutability::Mutable); |
| self.pat_ident_binding_mode(sp, ident, binding_mode) |
| } else { |
| self.pat_ident(sp, ident) |
| }; |
| let local = P(ast::Local { |
| pat: pat, |
| ty: Some(typ), |
| init: Some(ex), |
| id: ast::DUMMY_NODE_ID, |
| span: sp, |
| attrs: ast::ThinVec::new(), |
| }); |
| P(ast::Stmt { |
| id: ast::DUMMY_NODE_ID, |
| node: ast::StmtKind::Local(local), |
| span: sp, |
| }) |
| } |
| |
| fn stmt_item(&self, sp: Span, item: P<ast::Item>) -> ast::Stmt { |
| ast::Stmt { |
| id: ast::DUMMY_NODE_ID, |
| node: ast::StmtKind::Item(item), |
| span: sp, |
| } |
| } |
| |
| fn block_expr(&self, expr: P<ast::Expr>) -> P<ast::Block> { |
| self.block(expr.span, vec![ast::Stmt { |
| id: ast::DUMMY_NODE_ID, |
| span: expr.span, |
| node: ast::StmtKind::Expr(expr), |
| }]) |
| } |
| fn block(&self, span: Span, stmts: Vec<ast::Stmt>) -> P<ast::Block> { |
| P(ast::Block { |
| stmts: stmts, |
| id: ast::DUMMY_NODE_ID, |
| rules: BlockCheckMode::Default, |
| span: span, |
| }) |
| } |
| |
| fn expr(&self, span: Span, node: ast::ExprKind) -> P<ast::Expr> { |
| P(ast::Expr { |
| id: ast::DUMMY_NODE_ID, |
| node: node, |
| span: span, |
| attrs: ast::ThinVec::new(), |
| }) |
| } |
| |
| fn expr_path(&self, path: ast::Path) -> P<ast::Expr> { |
| self.expr(path.span, ast::ExprKind::Path(None, path)) |
| } |
| |
| /// Constructs a QPath expression. |
| fn expr_qpath(&self, span: Span, qself: ast::QSelf, path: ast::Path) -> P<ast::Expr> { |
| self.expr(span, ast::ExprKind::Path(Some(qself), path)) |
| } |
| |
| fn expr_ident(&self, span: Span, id: ast::Ident) -> P<ast::Expr> { |
| self.expr_path(self.path_ident(span, id)) |
| } |
| fn expr_self(&self, span: Span) -> P<ast::Expr> { |
| self.expr_ident(span, keywords::SelfValue.ident()) |
| } |
| |
| fn expr_binary(&self, sp: Span, op: ast::BinOpKind, |
| lhs: P<ast::Expr>, rhs: P<ast::Expr>) -> P<ast::Expr> { |
| self.expr(sp, ast::ExprKind::Binary(Spanned { node: op, span: sp }, lhs, rhs)) |
| } |
| |
| fn expr_deref(&self, sp: Span, e: P<ast::Expr>) -> P<ast::Expr> { |
| self.expr_unary(sp, UnOp::Deref, e) |
| } |
| fn expr_unary(&self, sp: Span, op: ast::UnOp, e: P<ast::Expr>) -> P<ast::Expr> { |
| self.expr(sp, ast::ExprKind::Unary(op, e)) |
| } |
| |
| fn expr_field_access(&self, sp: Span, expr: P<ast::Expr>, ident: ast::Ident) -> P<ast::Expr> { |
| let field_span = Span { |
| lo: sp.lo - Pos::from_usize(ident.name.as_str().len()), |
| hi: sp.hi, |
| expn_id: sp.expn_id, |
| }; |
| |
| let id = Spanned { node: ident, span: field_span }; |
| self.expr(sp, ast::ExprKind::Field(expr, id)) |
| } |
| fn expr_tup_field_access(&self, sp: Span, expr: P<ast::Expr>, idx: usize) -> P<ast::Expr> { |
| let field_span = Span { |
| lo: sp.lo - Pos::from_usize(idx.to_string().len()), |
| hi: sp.hi, |
| expn_id: sp.expn_id, |
| }; |
| |
| let id = Spanned { node: idx, span: field_span }; |
| self.expr(sp, ast::ExprKind::TupField(expr, id)) |
| } |
| fn expr_addr_of(&self, sp: Span, e: P<ast::Expr>) -> P<ast::Expr> { |
| self.expr(sp, ast::ExprKind::AddrOf(ast::Mutability::Immutable, e)) |
| } |
| fn expr_mut_addr_of(&self, sp: Span, e: P<ast::Expr>) -> P<ast::Expr> { |
| self.expr(sp, ast::ExprKind::AddrOf(ast::Mutability::Mutable, e)) |
| } |
| |
| fn expr_call(&self, span: Span, expr: P<ast::Expr>, args: Vec<P<ast::Expr>>) -> P<ast::Expr> { |
| self.expr(span, ast::ExprKind::Call(expr, args)) |
| } |
| fn expr_call_ident(&self, span: Span, id: ast::Ident, |
| args: Vec<P<ast::Expr>>) -> P<ast::Expr> { |
| self.expr(span, ast::ExprKind::Call(self.expr_ident(span, id), args)) |
| } |
| fn expr_call_global(&self, sp: Span, fn_path: Vec<ast::Ident> , |
| args: Vec<P<ast::Expr>> ) -> P<ast::Expr> { |
| let pathexpr = self.expr_path(self.path_global(sp, fn_path)); |
| self.expr_call(sp, pathexpr, args) |
| } |
| fn expr_method_call(&self, span: Span, |
| expr: P<ast::Expr>, |
| ident: ast::Ident, |
| mut args: Vec<P<ast::Expr>> ) -> P<ast::Expr> { |
| let id = Spanned { node: ident, span: span }; |
| args.insert(0, expr); |
| self.expr(span, ast::ExprKind::MethodCall(id, Vec::new(), args)) |
| } |
| fn expr_block(&self, b: P<ast::Block>) -> P<ast::Expr> { |
| self.expr(b.span, ast::ExprKind::Block(b)) |
| } |
| fn field_imm(&self, span: Span, name: Ident, e: P<ast::Expr>) -> ast::Field { |
| ast::Field { ident: respan(span, name), expr: e, span: span } |
| } |
| fn expr_struct(&self, span: Span, path: ast::Path, fields: Vec<ast::Field>) -> P<ast::Expr> { |
| self.expr(span, ast::ExprKind::Struct(path, fields, None)) |
| } |
| fn expr_struct_ident(&self, span: Span, |
| id: ast::Ident, fields: Vec<ast::Field>) -> P<ast::Expr> { |
| self.expr_struct(span, self.path_ident(span, id), fields) |
| } |
| |
| fn expr_lit(&self, sp: Span, lit: ast::LitKind) -> P<ast::Expr> { |
| self.expr(sp, ast::ExprKind::Lit(P(respan(sp, lit)))) |
| } |
| fn expr_usize(&self, span: Span, i: usize) -> P<ast::Expr> { |
| self.expr_lit(span, ast::LitKind::Int(i as u64, ast::LitIntType::Unsigned(ast::UintTy::Us))) |
| } |
| fn expr_isize(&self, sp: Span, i: isize) -> P<ast::Expr> { |
| if i < 0 { |
| let i = (-i) as u64; |
| let lit_ty = ast::LitIntType::Signed(ast::IntTy::Is); |
| let lit = self.expr_lit(sp, ast::LitKind::Int(i, lit_ty)); |
| self.expr_unary(sp, ast::UnOp::Neg, lit) |
| } else { |
| self.expr_lit(sp, ast::LitKind::Int(i as u64, ast::LitIntType::Signed(ast::IntTy::Is))) |
| } |
| } |
| fn expr_u32(&self, sp: Span, u: u32) -> P<ast::Expr> { |
| self.expr_lit(sp, ast::LitKind::Int(u as u64, ast::LitIntType::Unsigned(ast::UintTy::U32))) |
| } |
| fn expr_u8(&self, sp: Span, u: u8) -> P<ast::Expr> { |
| self.expr_lit(sp, ast::LitKind::Int(u as u64, ast::LitIntType::Unsigned(ast::UintTy::U8))) |
| } |
| fn expr_bool(&self, sp: Span, value: bool) -> P<ast::Expr> { |
| self.expr_lit(sp, ast::LitKind::Bool(value)) |
| } |
| |
| fn expr_vec(&self, sp: Span, exprs: Vec<P<ast::Expr>>) -> P<ast::Expr> { |
| self.expr(sp, ast::ExprKind::Vec(exprs)) |
| } |
| fn expr_vec_ng(&self, sp: Span) -> P<ast::Expr> { |
| self.expr_call_global(sp, self.std_path(&["vec", "Vec", "new"]), |
| Vec::new()) |
| } |
| fn expr_vec_slice(&self, sp: Span, exprs: Vec<P<ast::Expr>>) -> P<ast::Expr> { |
| self.expr_addr_of(sp, self.expr_vec(sp, exprs)) |
| } |
| fn expr_str(&self, sp: Span, s: InternedString) -> P<ast::Expr> { |
| self.expr_lit(sp, ast::LitKind::Str(s, ast::StrStyle::Cooked)) |
| } |
| |
| fn expr_cast(&self, sp: Span, expr: P<ast::Expr>, ty: P<ast::Ty>) -> P<ast::Expr> { |
| self.expr(sp, ast::ExprKind::Cast(expr, ty)) |
| } |
| |
| |
| fn expr_some(&self, sp: Span, expr: P<ast::Expr>) -> P<ast::Expr> { |
| let some = self.std_path(&["option", "Option", "Some"]); |
| self.expr_call_global(sp, some, vec!(expr)) |
| } |
| |
| fn expr_none(&self, sp: Span) -> P<ast::Expr> { |
| let none = self.std_path(&["option", "Option", "None"]); |
| let none = self.path_global(sp, none); |
| self.expr_path(none) |
| } |
| |
| |
| fn expr_break(&self, sp: Span) -> P<ast::Expr> { |
| self.expr(sp, ast::ExprKind::Break(None)) |
| } |
| |
| |
| fn expr_tuple(&self, sp: Span, exprs: Vec<P<ast::Expr>>) -> P<ast::Expr> { |
| self.expr(sp, ast::ExprKind::Tup(exprs)) |
| } |
| |
| fn expr_fail(&self, span: Span, msg: InternedString) -> P<ast::Expr> { |
| let loc = self.codemap().lookup_char_pos(span.lo); |
| let expr_file = self.expr_str(span, |
| token::intern_and_get_ident(&loc.file.name)); |
| let expr_line = self.expr_u32(span, loc.line as u32); |
| let expr_file_line_tuple = self.expr_tuple(span, vec!(expr_file, expr_line)); |
| let expr_file_line_ptr = self.expr_addr_of(span, expr_file_line_tuple); |
| self.expr_call_global( |
| span, |
| self.std_path(&["rt", "begin_panic"]), |
| vec!( |
| self.expr_str(span, msg), |
| expr_file_line_ptr)) |
| } |
| |
| fn expr_unreachable(&self, span: Span) -> P<ast::Expr> { |
| self.expr_fail(span, |
| InternedString::new( |
| "internal error: entered unreachable code")) |
| } |
| |
| fn expr_ok(&self, sp: Span, expr: P<ast::Expr>) -> P<ast::Expr> { |
| let ok = self.std_path(&["result", "Result", "Ok"]); |
| self.expr_call_global(sp, ok, vec!(expr)) |
| } |
| |
| fn expr_err(&self, sp: Span, expr: P<ast::Expr>) -> P<ast::Expr> { |
| let err = self.std_path(&["result", "Result", "Err"]); |
| self.expr_call_global(sp, err, vec!(expr)) |
| } |
| |
| fn expr_try(&self, sp: Span, head: P<ast::Expr>) -> P<ast::Expr> { |
| let ok = self.std_path(&["result", "Result", "Ok"]); |
| let ok_path = self.path_global(sp, ok); |
| let err = self.std_path(&["result", "Result", "Err"]); |
| let err_path = self.path_global(sp, err); |
| |
| let binding_variable = self.ident_of("__try_var"); |
| let binding_pat = self.pat_ident(sp, binding_variable); |
| let binding_expr = self.expr_ident(sp, binding_variable); |
| |
| // Ok(__try_var) pattern |
| let ok_pat = self.pat_enum(sp, ok_path, vec!(binding_pat.clone())); |
| |
| // Err(__try_var) (pattern and expression resp.) |
| let err_pat = self.pat_enum(sp, err_path.clone(), vec!(binding_pat)); |
| let err_inner_expr = self.expr_call(sp, self.expr_path(err_path), |
| vec!(binding_expr.clone())); |
| // return Err(__try_var) |
| let err_expr = self.expr(sp, ast::ExprKind::Ret(Some(err_inner_expr))); |
| |
| // Ok(__try_var) => __try_var |
| let ok_arm = self.arm(sp, vec!(ok_pat), binding_expr); |
| // Err(__try_var) => return Err(__try_var) |
| let err_arm = self.arm(sp, vec!(err_pat), err_expr); |
| |
| // match head { Ok() => ..., Err() => ... } |
| self.expr_match(sp, head, vec!(ok_arm, err_arm)) |
| } |
| |
| |
| fn pat(&self, span: Span, pat: PatKind) -> P<ast::Pat> { |
| P(ast::Pat { id: ast::DUMMY_NODE_ID, node: pat, span: span }) |
| } |
| fn pat_wild(&self, span: Span) -> P<ast::Pat> { |
| self.pat(span, PatKind::Wild) |
| } |
| fn pat_lit(&self, span: Span, expr: P<ast::Expr>) -> P<ast::Pat> { |
| self.pat(span, PatKind::Lit(expr)) |
| } |
| fn pat_ident(&self, span: Span, ident: ast::Ident) -> P<ast::Pat> { |
| let binding_mode = ast::BindingMode::ByValue(ast::Mutability::Immutable); |
| self.pat_ident_binding_mode(span, ident, binding_mode) |
| } |
| |
| fn pat_ident_binding_mode(&self, |
| span: Span, |
| ident: ast::Ident, |
| bm: ast::BindingMode) -> P<ast::Pat> { |
| let pat = PatKind::Ident(bm, Spanned{span: span, node: ident}, None); |
| self.pat(span, pat) |
| } |
| fn pat_enum(&self, span: Span, path: ast::Path, subpats: Vec<P<ast::Pat>>) -> P<ast::Pat> { |
| let pat = if subpats.is_empty() { |
| PatKind::Path(None, path) |
| } else { |
| PatKind::TupleStruct(path, subpats, None) |
| }; |
| self.pat(span, pat) |
| } |
| fn pat_struct(&self, span: Span, |
| path: ast::Path, field_pats: Vec<Spanned<ast::FieldPat>>) -> P<ast::Pat> { |
| let pat = PatKind::Struct(path, field_pats, false); |
| self.pat(span, pat) |
| } |
| fn pat_tuple(&self, span: Span, pats: Vec<P<ast::Pat>>) -> P<ast::Pat> { |
| self.pat(span, PatKind::Tuple(pats, None)) |
| } |
| |
| fn pat_some(&self, span: Span, pat: P<ast::Pat>) -> P<ast::Pat> { |
| let some = self.std_path(&["option", "Option", "Some"]); |
| let path = self.path_global(span, some); |
| self.pat_enum(span, path, vec!(pat)) |
| } |
| |
| fn pat_none(&self, span: Span) -> P<ast::Pat> { |
| let some = self.std_path(&["option", "Option", "None"]); |
| let path = self.path_global(span, some); |
| self.pat_enum(span, path, vec!()) |
| } |
| |
| fn pat_ok(&self, span: Span, pat: P<ast::Pat>) -> P<ast::Pat> { |
| let some = self.std_path(&["result", "Result", "Ok"]); |
| let path = self.path_global(span, some); |
| self.pat_enum(span, path, vec!(pat)) |
| } |
| |
| fn pat_err(&self, span: Span, pat: P<ast::Pat>) -> P<ast::Pat> { |
| let some = self.std_path(&["result", "Result", "Err"]); |
| let path = self.path_global(span, some); |
| self.pat_enum(span, path, vec!(pat)) |
| } |
| |
| fn arm(&self, _span: Span, pats: Vec<P<ast::Pat>>, expr: P<ast::Expr>) -> ast::Arm { |
| ast::Arm { |
| attrs: vec!(), |
| pats: pats, |
| guard: None, |
| body: expr |
| } |
| } |
| |
| fn arm_unreachable(&self, span: Span) -> ast::Arm { |
| self.arm(span, vec!(self.pat_wild(span)), self.expr_unreachable(span)) |
| } |
| |
| fn expr_match(&self, span: Span, arg: P<ast::Expr>, arms: Vec<ast::Arm>) -> P<Expr> { |
| self.expr(span, ast::ExprKind::Match(arg, arms)) |
| } |
| |
| fn expr_if(&self, span: Span, cond: P<ast::Expr>, |
| then: P<ast::Expr>, els: Option<P<ast::Expr>>) -> P<ast::Expr> { |
| let els = els.map(|x| self.expr_block(self.block_expr(x))); |
| self.expr(span, ast::ExprKind::If(cond, self.block_expr(then), els)) |
| } |
| |
| fn expr_loop(&self, span: Span, block: P<ast::Block>) -> P<ast::Expr> { |
| self.expr(span, ast::ExprKind::Loop(block, None)) |
| } |
| |
| fn lambda_fn_decl(&self, |
| span: Span, |
| fn_decl: P<ast::FnDecl>, |
| blk: P<ast::Block>, |
| fn_decl_span: Span) // span of the `|...|` part |
| -> P<ast::Expr> { |
| self.expr(span, ast::ExprKind::Closure(ast::CaptureBy::Ref, |
| fn_decl, |
| blk, |
| fn_decl_span)) |
| } |
| |
| fn lambda(&self, |
| span: Span, |
| ids: Vec<ast::Ident>, |
| blk: P<ast::Block>) |
| -> P<ast::Expr> { |
| let fn_decl = self.fn_decl( |
| ids.iter().map(|id| self.arg(span, *id, self.ty_infer(span))).collect(), |
| self.ty_infer(span)); |
| |
| // FIXME -- We are using `span` as the span of the `|...|` |
| // part of the lambda, but it probably (maybe?) corresponds to |
| // the entire lambda body. Probably we should extend the API |
| // here, but that's not entirely clear. |
| self.expr(span, ast::ExprKind::Closure(ast::CaptureBy::Ref, fn_decl, blk, span)) |
| } |
| |
| fn lambda0(&self, span: Span, blk: P<ast::Block>) -> P<ast::Expr> { |
| self.lambda(span, Vec::new(), blk) |
| } |
| |
| fn lambda1(&self, span: Span, blk: P<ast::Block>, ident: ast::Ident) -> P<ast::Expr> { |
| self.lambda(span, vec!(ident), blk) |
| } |
| |
| fn lambda_expr(&self, span: Span, ids: Vec<ast::Ident>, |
| expr: P<ast::Expr>) -> P<ast::Expr> { |
| self.lambda(span, ids, self.block_expr(expr)) |
| } |
| fn lambda_expr_0(&self, span: Span, expr: P<ast::Expr>) -> P<ast::Expr> { |
| self.lambda0(span, self.block_expr(expr)) |
| } |
| fn lambda_expr_1(&self, span: Span, expr: P<ast::Expr>, ident: ast::Ident) -> P<ast::Expr> { |
| self.lambda1(span, self.block_expr(expr), ident) |
| } |
| |
| fn lambda_stmts(&self, |
| span: Span, |
| ids: Vec<ast::Ident>, |
| stmts: Vec<ast::Stmt>) |
| -> P<ast::Expr> { |
| self.lambda(span, ids, self.block(span, stmts)) |
| } |
| fn lambda_stmts_0(&self, span: Span, stmts: Vec<ast::Stmt>) -> P<ast::Expr> { |
| self.lambda0(span, self.block(span, stmts)) |
| } |
| fn lambda_stmts_1(&self, span: Span, stmts: Vec<ast::Stmt>, |
| ident: ast::Ident) -> P<ast::Expr> { |
| self.lambda1(span, self.block(span, stmts), ident) |
| } |
| |
| fn arg(&self, span: Span, ident: ast::Ident, ty: P<ast::Ty>) -> ast::Arg { |
| let arg_pat = self.pat_ident(span, ident); |
| ast::Arg { |
| ty: ty, |
| pat: arg_pat, |
| id: ast::DUMMY_NODE_ID |
| } |
| } |
| |
| // FIXME unused self |
| fn fn_decl(&self, inputs: Vec<ast::Arg>, output: P<ast::Ty>) -> P<ast::FnDecl> { |
| P(ast::FnDecl { |
| inputs: inputs, |
| output: ast::FunctionRetTy::Ty(output), |
| variadic: false |
| }) |
| } |
| |
| fn item(&self, span: Span, name: Ident, |
| attrs: Vec<ast::Attribute>, node: ast::ItemKind) -> P<ast::Item> { |
| // FIXME: Would be nice if our generated code didn't violate |
| // Rust coding conventions |
| P(ast::Item { |
| ident: name, |
| attrs: attrs, |
| id: ast::DUMMY_NODE_ID, |
| node: node, |
| vis: ast::Visibility::Inherited, |
| span: span |
| }) |
| } |
| |
| fn item_fn_poly(&self, |
| span: Span, |
| name: Ident, |
| inputs: Vec<ast::Arg> , |
| output: P<ast::Ty>, |
| generics: Generics, |
| body: P<ast::Block>) -> P<ast::Item> { |
| self.item(span, |
| name, |
| Vec::new(), |
| ast::ItemKind::Fn(self.fn_decl(inputs, output), |
| ast::Unsafety::Normal, |
| ast::Constness::NotConst, |
| Abi::Rust, |
| generics, |
| body)) |
| } |
| |
| fn item_fn(&self, |
| span: Span, |
| name: Ident, |
| inputs: Vec<ast::Arg> , |
| output: P<ast::Ty>, |
| body: P<ast::Block> |
| ) -> P<ast::Item> { |
| self.item_fn_poly( |
| span, |
| name, |
| inputs, |
| output, |
| Generics::default(), |
| body) |
| } |
| |
| fn variant(&self, span: Span, name: Ident, tys: Vec<P<ast::Ty>> ) -> ast::Variant { |
| let fields: Vec<_> = tys.into_iter().map(|ty| { |
| ast::StructField { |
| span: ty.span, |
| ty: ty, |
| ident: None, |
| vis: ast::Visibility::Inherited, |
| attrs: Vec::new(), |
| id: ast::DUMMY_NODE_ID, |
| } |
| }).collect(); |
| |
| let vdata = if fields.is_empty() { |
| ast::VariantData::Unit(ast::DUMMY_NODE_ID) |
| } else { |
| ast::VariantData::Tuple(fields, ast::DUMMY_NODE_ID) |
| }; |
| |
| respan(span, |
| ast::Variant_ { |
| name: name, |
| attrs: Vec::new(), |
| data: vdata, |
| disr_expr: None, |
| }) |
| } |
| |
| fn item_enum_poly(&self, span: Span, name: Ident, |
| enum_definition: ast::EnumDef, |
| generics: Generics) -> P<ast::Item> { |
| self.item(span, name, Vec::new(), ast::ItemKind::Enum(enum_definition, generics)) |
| } |
| |
| fn item_enum(&self, span: Span, name: Ident, |
| enum_definition: ast::EnumDef) -> P<ast::Item> { |
| self.item_enum_poly(span, name, enum_definition, |
| Generics::default()) |
| } |
| |
| fn item_struct(&self, span: Span, name: Ident, |
| struct_def: ast::VariantData) -> P<ast::Item> { |
| self.item_struct_poly( |
| span, |
| name, |
| struct_def, |
| Generics::default() |
| ) |
| } |
| |
| fn item_struct_poly(&self, span: Span, name: Ident, |
| struct_def: ast::VariantData, generics: Generics) -> P<ast::Item> { |
| self.item(span, name, Vec::new(), ast::ItemKind::Struct(struct_def, generics)) |
| } |
| |
| fn item_mod(&self, span: Span, inner_span: Span, name: Ident, |
| attrs: Vec<ast::Attribute>, |
| items: Vec<P<ast::Item>>) -> P<ast::Item> { |
| self.item( |
| span, |
| name, |
| attrs, |
| ast::ItemKind::Mod(ast::Mod { |
| inner: inner_span, |
| items: items, |
| }) |
| ) |
| } |
| |
| fn item_static(&self, |
| span: Span, |
| name: Ident, |
| ty: P<ast::Ty>, |
| mutbl: ast::Mutability, |
| expr: P<ast::Expr>) |
| -> P<ast::Item> { |
| self.item(span, name, Vec::new(), ast::ItemKind::Static(ty, mutbl, expr)) |
| } |
| |
| fn item_const(&self, |
| span: Span, |
| name: Ident, |
| ty: P<ast::Ty>, |
| expr: P<ast::Expr>) |
| -> P<ast::Item> { |
| self.item(span, name, Vec::new(), ast::ItemKind::Const(ty, expr)) |
| } |
| |
| fn item_ty_poly(&self, span: Span, name: Ident, ty: P<ast::Ty>, |
| generics: Generics) -> P<ast::Item> { |
| self.item(span, name, Vec::new(), ast::ItemKind::Ty(ty, generics)) |
| } |
| |
| fn item_ty(&self, span: Span, name: Ident, ty: P<ast::Ty>) -> P<ast::Item> { |
| self.item_ty_poly(span, name, ty, Generics::default()) |
| } |
| |
| fn attribute(&self, sp: Span, mi: P<ast::MetaItem>) -> ast::Attribute { |
| respan(sp, ast::Attribute_ { |
| id: attr::mk_attr_id(), |
| style: ast::AttrStyle::Outer, |
| value: mi, |
| is_sugared_doc: false, |
| }) |
| } |
| |
| fn meta_word(&self, sp: Span, w: InternedString) -> P<ast::MetaItem> { |
| P(respan(sp, ast::MetaItemKind::Word(w))) |
| } |
| fn meta_list(&self, |
| sp: Span, |
| name: InternedString, |
| mis: Vec<P<ast::MetaItem>> ) |
| -> P<ast::MetaItem> { |
| P(respan(sp, ast::MetaItemKind::List(name, mis))) |
| } |
| fn meta_name_value(&self, |
| sp: Span, |
| name: InternedString, |
| value: ast::LitKind) |
| -> P<ast::MetaItem> { |
| P(respan(sp, ast::MetaItemKind::NameValue(name, respan(sp, value)))) |
| } |
| |
| fn item_use(&self, sp: Span, |
| vis: ast::Visibility, vp: P<ast::ViewPath>) -> P<ast::Item> { |
| P(ast::Item { |
| id: ast::DUMMY_NODE_ID, |
| ident: keywords::Invalid.ident(), |
| attrs: vec![], |
| node: ast::ItemKind::Use(vp), |
| vis: vis, |
| span: sp |
| }) |
| } |
| |
| fn item_use_simple(&self, sp: Span, vis: ast::Visibility, path: ast::Path) -> P<ast::Item> { |
| let last = path.segments.last().unwrap().identifier; |
| self.item_use_simple_(sp, vis, last, path) |
| } |
| |
| fn item_use_simple_(&self, sp: Span, vis: ast::Visibility, |
| ident: ast::Ident, path: ast::Path) -> P<ast::Item> { |
| self.item_use(sp, vis, |
| P(respan(sp, |
| ast::ViewPathSimple(ident, |
| path)))) |
| } |
| |
| fn item_use_list(&self, sp: Span, vis: ast::Visibility, |
| path: Vec<ast::Ident>, imports: &[ast::Ident]) -> P<ast::Item> { |
| let imports = imports.iter().map(|id| { |
| let item = ast::PathListItemKind::Ident { |
| name: *id, |
| rename: None, |
| id: ast::DUMMY_NODE_ID, |
| }; |
| respan(sp, item) |
| }).collect(); |
| |
| self.item_use(sp, vis, |
| P(respan(sp, |
| ast::ViewPathList(self.path(sp, path), |
| imports)))) |
| } |
| |
| fn item_use_glob(&self, sp: Span, |
| vis: ast::Visibility, path: Vec<ast::Ident>) -> P<ast::Item> { |
| self.item_use(sp, vis, |
| P(respan(sp, |
| ast::ViewPathGlob(self.path(sp, path))))) |
| } |
| } |
