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pub use self::Def::*;
pub use self::MethodProvenance::*;
pub use self::TraitItemKind::*;
use middle::subst::ParamSpace;
use middle::ty::{ExplicitSelfCategory, StaticExplicitSelfCategory};
use util::nodemap::NodeMap;
use syntax::ast;
use syntax::ast_util::local_def;
use std::cell::RefCell;
#[deriving(Clone, Copy, PartialEq, Eq, RustcEncodable, RustcDecodable, Hash, Show)]
pub enum Def {
DefFn(ast::DefId, bool ),
DefStaticMethod( ast::DefId, MethodProvenance),
DefSelfTy( ast::NodeId),
DefMod(ast::DefId),
DefForeignMod(ast::DefId),
DefStatic(ast::DefId, bool ),
DefConst(ast::DefId),
DefLocal(ast::NodeId),
DefVariant(ast::DefId , ast::DefId , bool ),
DefTy(ast::DefId, bool ),
DefAssociatedTy(ast::DefId),
DefAssociatedPath(TyParamProvenance, ast::Ident),
DefTrait(ast::DefId),
DefPrimTy(ast::PrimTy),
DefTyParam(ParamSpace, u32, ast::DefId, ast::Name),
DefUse(ast::DefId),
DefUpvar(ast::NodeId,
ast::NodeId,
ast::NodeId),
DefStruct(ast::DefId),
DefTyParamBinder(ast::NodeId),
DefRegion(ast::NodeId),
DefLabel(ast::NodeId),
DefMethod(ast::DefId , Option<ast::DefId> , MethodProvenance),
}
pub type DefMap = RefCell<NodeMap<Def>>;
pub type ExportMap = NodeMap<Vec<Export>>;
#[deriving(Copy)]
pub struct Export {
pub name: ast::Name,
pub def_id: ast::DefId,
}
#[deriving(Clone, Copy, PartialEq, Eq, RustcEncodable, RustcDecodable, Hash, Show)]
pub enum MethodProvenance {
FromTrait(ast::DefId),
FromImpl(ast::DefId),
}
#[deriving(Clone, Copy, PartialEq, Eq, RustcEncodable, RustcDecodable, Hash, Show)]
pub enum TyParamProvenance {
FromSelf(ast::DefId),
FromParam(ast::DefId),
}
impl MethodProvenance {
pub fn map<F>(self, f: F) -> MethodProvenance where
F: FnOnce(ast::DefId) -> ast::DefId,
{
match self {
FromTrait(did) => FromTrait(f(did)),
FromImpl(did) => FromImpl(f(did))
}
}
}
impl TyParamProvenance {
pub fn def_id(&self) -> ast::DefId {
match *self {
TyParamProvenance::FromSelf(ref did) => did.clone(),
TyParamProvenance::FromParam(ref did) => did.clone(),
}
}
}
#[deriving(Clone, Copy, Eq, PartialEq)]
pub enum TraitItemKind {
NonstaticMethodTraitItemKind,
StaticMethodTraitItemKind,
TypeTraitItemKind,
}
impl TraitItemKind {
pub fn from_explicit_self_category(explicit_self_category:
ExplicitSelfCategory)
-> TraitItemKind {
if explicit_self_category == StaticExplicitSelfCategory {
StaticMethodTraitItemKind
} else {
NonstaticMethodTraitItemKind
}
}
}
impl Def {
pub fn def_id(&self) -> ast::DefId {
match *self {
DefFn(id, _) | DefStaticMethod(id, _) | DefMod(id) |
DefForeignMod(id) | DefStatic(id, _) |
DefVariant(_, id, _) | DefTy(id, _) | DefAssociatedTy(id) |
DefTyParam(_, _, id, _) | DefUse(id) | DefStruct(id) | DefTrait(id) |
DefMethod(id, _, _) | DefConst(id) |
DefAssociatedPath(TyParamProvenance::FromSelf(id), _) |
DefAssociatedPath(TyParamProvenance::FromParam(id), _) => {
id
}
DefLocal(id) |
DefSelfTy(id) |
DefUpvar(id, _, _) |
DefRegion(id) |
DefTyParamBinder(id) |
DefLabel(id) => {
local_def(id)
}
DefPrimTy(_) => panic!()
}
}
pub fn variant_def_ids(&self) -> Option<(ast::DefId, ast::DefId)> {
match *self {
DefVariant(enum_id, var_id, _) => {
Some((enum_id, var_id))
}
_ => None
}
}
}