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#![cfg_attr(feature = "clippy", feature(plugin))] #![cfg_attr(feature = "clippy", plugin(clippy))] #[cfg(feature = "printing")] extern crate quote; #[cfg(feature = "parsing")] extern crate unicode_xid; #[cfg(feature = "parsing")] #[macro_use] mod nom; #[macro_use] mod helper; mod escape; mod attr; pub use attr::{ Attribute, MetaItem, }; mod data; pub use data::{ Discriminant, Field, Variant, VariantData, Visibility, }; #[cfg(feature = "full")] mod expr; #[cfg(feature = "full")] pub use expr::{ Arm, BinOp, BindingMode, Block, BlockCheckMode, CaptureBy, Expr, FieldPat, Local, MacStmtStyle, Pat, RangeLimits, Stmt, UnOp, }; mod generics; pub use generics::{ Generics, Lifetime, LifetimeDef, TraitBoundModifier, TyParam, TyParamBound, WhereBoundPredicate, WhereClause, WherePredicate, WhereRegionPredicate, }; mod ident; pub use ident::{ Ident, }; #[cfg(feature = "full")] mod item; #[cfg(feature = "full")] pub use item::{ Abi, Constness, Defaultness, ForeignItemKind, ForeignItem, ForeignMod, ImplItem, ImplItemKind, ImplPolarity, Item, ItemKind, MethodSig, PathListItem, TraitItem, TraitItemKind, Unsafety, ViewPath, }; mod lit; pub use lit::{ FloatTy, IntTy, Lit, StrStyle, }; #[cfg(feature = "full")] mod mac; #[cfg(feature = "full")] pub use mac::{ BinOpToken, DelimToken, Delimited, Mac, SequenceRepetition, Token, TokenTree, }; mod macro_input; pub use macro_input::{ Body, MacroInput, }; mod ty; pub use ty::{ AngleBracketedParameterData, BareFnTy, FnArg, FnDecl, FunctionRetTy, MutTy, Mutability, ParenthesizedParameterData, Path, PathParameters, PathSegment, PolyTraitRef, QSelf, Ty, TypeBinding, }; #[cfg(feature = "aster")] pub mod aster; #[cfg(feature = "visit")] pub mod visit; #[cfg(feature = "parsing")] pub use parsing::*; #[cfg(feature = "parsing")] mod parsing { use super::*; use {generics, macro_input, ty}; use nom; #[cfg(feature = "full")] use {expr, item}; pub fn parse_macro_input(input: &str) -> Result<MacroInput, String> { unwrap("macro input", macro_input::parsing::macro_input, input) } #[cfg(feature = "full")] pub fn parse_item(input: &str) -> Result<Item, String> { unwrap("item", item::parsing::item, input) } #[cfg(feature = "full")] pub fn parse_expr(input: &str) -> Result<Expr, String> { unwrap("expression", expr::parsing::expr, input) } pub fn parse_type(input: &str) -> Result<Ty, String> { unwrap("type", ty::parsing::ty, input) } pub fn parse_path(input: &str) -> Result<Path, String> { unwrap("path", ty::parsing::path, input) } pub fn parse_where_clause(input: &str) -> Result<WhereClause, String> { unwrap("where clause", generics::parsing::where_clause, input) } fn unwrap<T>(name: &'static str, f: fn(&str) -> nom::IResult<&str, T>, input: &str) -> Result<T, String> { match f(input) { nom::IResult::Done(rest, t) => { if rest.is_empty() { Ok(t) } else { Err(format!("remaining tokens after {}: {:?}", name, rest)) } } nom::IResult::Error => Err(format!("failed to parse {}: {:?}", name, input)), } } }