1606 lines
44 KiB
Rust
1606 lines
44 KiB
Rust
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// The Rust abstract syntax tree.
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use std::serialization::{Serializable,
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Deserializable,
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Serializer,
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Deserializer};
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use codemap::{span, FileName};
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use parse::token;
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#[auto_serialize]
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#[auto_deserialize]
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type spanned<T> = {node: T, span: span};
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/* can't import macros yet, so this is copied from token.rs. See its comment
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* there. */
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macro_rules! interner_key (
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() => (cast::transmute::<(uint, uint), &fn(+v: @@token::ident_interner)>(
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(-3 as uint, 0u)))
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)
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// FIXME(#3534): Replace with the struct-based newtype when it's been
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// implemented.
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struct ident { repr: uint }
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impl<S: Serializer> ident: Serializable<S> {
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fn serialize(&self, s: &S) {
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let intr = match unsafe {
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task::local_data::local_data_get(interner_key!())
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} {
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None => fail ~"serialization: TLS interner not set up",
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Some(intr) => intr
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};
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s.emit_owned_str(*(*intr).get(*self));
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}
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}
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impl<D: Deserializer> ident: Deserializable<D> {
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static fn deserialize(d: &D) -> ident {
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let intr = match unsafe {
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task::local_data::local_data_get(interner_key!())
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} {
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None => fail ~"deserialization: TLS interner not set up",
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Some(intr) => intr
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};
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(*intr).intern(@d.read_owned_str())
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}
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}
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impl ident: cmp::Eq {
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pure fn eq(&self, other: &ident) -> bool { (*self).repr == other.repr }
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pure fn ne(&self, other: &ident) -> bool { !(*self).eq(other) }
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}
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impl ident: to_bytes::IterBytes {
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pure fn iter_bytes(&self, +lsb0: bool, f: to_bytes::Cb) {
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self.repr.iter_bytes(lsb0, f)
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}
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}
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// Functions may or may not have names.
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type fn_ident = Option<ident>;
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#[auto_serialize]
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#[auto_deserialize]
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type path = {span: span,
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global: bool,
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idents: ~[ident],
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rp: Option<@region>,
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types: ~[@Ty]};
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type crate_num = int;
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type node_id = int;
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#[auto_serialize]
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#[auto_deserialize]
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type def_id = {crate: crate_num, node: node_id};
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impl def_id : cmp::Eq {
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pure fn eq(&self, other: &def_id) -> bool {
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(*self).crate == (*other).crate && (*self).node == (*other).node
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}
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pure fn ne(&self, other: &def_id) -> bool { !(*self).eq(other) }
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}
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const local_crate: crate_num = 0;
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const crate_node_id: node_id = 0;
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#[auto_serialize]
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#[auto_deserialize]
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// The AST represents all type param bounds as types.
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// typeck::collect::compute_bounds matches these against
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// the "special" built-in traits (see middle::lang_items) and
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// detects Copy, Send, Owned, and Const.
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enum ty_param_bound = @Ty;
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#[auto_serialize]
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#[auto_deserialize]
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type ty_param = {ident: ident, id: node_id, bounds: @~[ty_param_bound]};
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#[auto_serialize]
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#[auto_deserialize]
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enum def {
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def_fn(def_id, purity),
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def_static_method(/* method */ def_id,
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/* trait */ Option<def_id>,
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purity),
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def_self(node_id),
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def_mod(def_id),
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def_foreign_mod(def_id),
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def_const(def_id),
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def_arg(node_id, mode),
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def_local(node_id, bool /* is_mutbl */),
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def_variant(def_id /* enum */, def_id /* variant */),
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def_ty(def_id),
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def_prim_ty(prim_ty),
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def_ty_param(def_id, uint),
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def_binding(node_id, binding_mode),
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def_use(def_id),
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def_upvar(node_id, // id of closed over var
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@def, // closed over def
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node_id, // expr node that creates the closure
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node_id), // id for the block/body of the closure expr
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def_class(def_id),
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def_typaram_binder(node_id), /* class, impl or trait that has ty params */
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def_region(node_id),
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def_label(node_id)
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}
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impl def : cmp::Eq {
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pure fn eq(&self, other: &def) -> bool {
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match (*self) {
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def_fn(e0a, e1a) => {
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match (*other) {
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def_fn(e0b, e1b) => e0a == e0b && e1a == e1b,
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_ => false
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}
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}
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def_static_method(e0a, e1a, e2a) => {
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match (*other) {
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def_static_method(e0b, e1b, e2b) =>
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e0a == e0b && e1a == e1b && e2a == e2b,
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_ => false
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}
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}
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def_self(e0a) => {
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match (*other) {
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def_self(e0b) => e0a == e0b,
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_ => false
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}
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}
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def_mod(e0a) => {
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match (*other) {
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def_mod(e0b) => e0a == e0b,
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_ => false
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}
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}
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def_foreign_mod(e0a) => {
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match (*other) {
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def_foreign_mod(e0b) => e0a == e0b,
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_ => false
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}
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}
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def_const(e0a) => {
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match (*other) {
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def_const(e0b) => e0a == e0b,
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_ => false
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}
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}
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def_arg(e0a, e1a) => {
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match (*other) {
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def_arg(e0b, e1b) => e0a == e0b && e1a == e1b,
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_ => false
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}
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}
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def_local(e0a, e1a) => {
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match (*other) {
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def_local(e0b, e1b) => e0a == e0b && e1a == e1b,
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_ => false
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}
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}
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def_variant(e0a, e1a) => {
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match (*other) {
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def_variant(e0b, e1b) => e0a == e0b && e1a == e1b,
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_ => false
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}
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}
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def_ty(e0a) => {
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match (*other) {
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def_ty(e0b) => e0a == e0b,
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_ => false
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}
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}
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def_prim_ty(e0a) => {
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match (*other) {
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def_prim_ty(e0b) => e0a == e0b,
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_ => false
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}
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}
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def_ty_param(e0a, e1a) => {
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match (*other) {
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def_ty_param(e0b, e1b) => e0a == e0b && e1a == e1b,
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_ => false
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}
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}
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def_binding(e0a, e1a) => {
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match (*other) {
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def_binding(e0b, e1b) => e0a == e0b && e1a == e1b,
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_ => false
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}
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}
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def_use(e0a) => {
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match (*other) {
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def_use(e0b) => e0a == e0b,
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_ => false
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}
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}
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def_upvar(e0a, e1a, e2a, e3a) => {
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match (*other) {
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def_upvar(e0b, e1b, e2b, e3b) =>
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e0a == e0b && e1a == e1b && e2a == e2b && e3a == e3b,
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_ => false
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}
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}
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def_class(e0a) => {
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match (*other) {
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def_class(e0b) => e0a == e0b,
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_ => false
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}
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}
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def_typaram_binder(e0a) => {
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match (*other) {
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def_typaram_binder(e1a) => e0a == e1a,
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_ => false
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}
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}
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def_region(e0a) => {
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match (*other) {
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def_region(e0b) => e0a == e0b,
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_ => false
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}
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}
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def_label(e0a) => {
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match (*other) {
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def_label(e0b) => e0a == e0b,
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_ => false
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}
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}
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}
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}
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pure fn ne(&self, other: &def) -> bool { !(*self).eq(other) }
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}
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// The set of meta_items that define the compilation environment of the crate,
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// used to drive conditional compilation
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type crate_cfg = ~[@meta_item];
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type crate = spanned<crate_>;
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type crate_ =
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{module: _mod,
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attrs: ~[attribute],
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config: crate_cfg};
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type meta_item = spanned<meta_item_>;
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#[auto_serialize]
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#[auto_deserialize]
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enum meta_item_ {
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meta_word(~str),
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meta_list(~str, ~[@meta_item]),
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meta_name_value(~str, lit),
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}
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type blk = spanned<blk_>;
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#[auto_serialize]
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#[auto_deserialize]
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type blk_ = {view_items: ~[@view_item],
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stmts: ~[@stmt],
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expr: Option<@expr>,
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id: node_id,
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rules: blk_check_mode};
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#[auto_serialize]
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#[auto_deserialize]
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type pat = {id: node_id, node: pat_, span: span};
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#[auto_serialize]
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#[auto_deserialize]
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type field_pat = {ident: ident, pat: @pat};
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#[auto_serialize]
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#[auto_deserialize]
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enum binding_mode {
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bind_by_value,
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bind_by_move,
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bind_by_ref(ast::mutability),
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bind_by_implicit_ref
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}
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impl binding_mode : to_bytes::IterBytes {
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pure fn iter_bytes(&self, +lsb0: bool, f: to_bytes::Cb) {
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match *self {
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bind_by_value => 0u8.iter_bytes(lsb0, f),
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bind_by_move => 1u8.iter_bytes(lsb0, f),
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bind_by_ref(ref m) =>
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to_bytes::iter_bytes_2(&2u8, m, lsb0, f),
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bind_by_implicit_ref =>
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3u8.iter_bytes(lsb0, f),
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}
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}
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}
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impl binding_mode : cmp::Eq {
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pure fn eq(&self, other: &binding_mode) -> bool {
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match (*self) {
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bind_by_value => {
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match (*other) {
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bind_by_value => true,
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_ => false
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}
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}
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bind_by_move => {
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match (*other) {
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bind_by_move => true,
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_ => false
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}
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}
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bind_by_ref(e0a) => {
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match (*other) {
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bind_by_ref(e0b) => e0a == e0b,
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_ => false
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}
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}
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bind_by_implicit_ref => {
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match (*other) {
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bind_by_implicit_ref => true,
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_ => false
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}
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}
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}
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}
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pure fn ne(&self, other: &binding_mode) -> bool { !(*self).eq(other) }
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}
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#[auto_serialize]
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#[auto_deserialize]
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enum pat_ {
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pat_wild,
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// A pat_ident may either be a new bound variable,
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// or a nullary enum (in which case the second field
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// is None).
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// In the nullary enum case, the parser can't determine
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// which it is. The resolver determines this, and
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// records this pattern's node_id in an auxiliary
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// set (of "pat_idents that refer to nullary enums")
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pat_ident(binding_mode, @path, Option<@pat>),
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pat_enum(@path, Option<~[@pat]>), // "none" means a * pattern where
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// we don't bind the fields to names
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pat_rec(~[field_pat], bool),
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pat_struct(@path, ~[field_pat], bool),
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pat_tup(~[@pat]),
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pat_box(@pat),
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pat_uniq(@pat),
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pat_region(@pat), // borrowed pointer pattern
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pat_lit(@expr),
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pat_range(@expr, @expr),
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}
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#[auto_serialize]
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#[auto_deserialize]
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enum mutability { m_mutbl, m_imm, m_const, }
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impl mutability : to_bytes::IterBytes {
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pure fn iter_bytes(&self, +lsb0: bool, f: to_bytes::Cb) {
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(*self as u8).iter_bytes(lsb0, f)
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}
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}
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impl mutability : cmp::Eq {
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pure fn eq(&self, other: &mutability) -> bool {
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((*self) as uint) == ((*other) as uint)
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}
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pure fn ne(&self, other: &mutability) -> bool { !(*self).eq(other) }
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}
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#[auto_serialize]
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#[auto_deserialize]
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pub enum Proto {
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ProtoBare, // bare functions (deprecated)
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ProtoUniq, // ~fn
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ProtoBox, // @fn
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ProtoBorrowed, // &fn
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}
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impl Proto : cmp::Eq {
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pure fn eq(&self, other: &Proto) -> bool {
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((*self) as uint) == ((*other) as uint)
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}
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pure fn ne(&self, other: &Proto) -> bool { !(*self).eq(other) }
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}
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impl Proto : to_bytes::IterBytes {
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pure fn iter_bytes(&self, +lsb0: bool, f: to_bytes::Cb) {
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(*self as uint).iter_bytes(lsb0, f);
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}
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}
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#[auto_serialize]
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#[auto_deserialize]
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enum vstore {
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// FIXME (#3469): Change uint to @expr (actually only constant exprs)
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vstore_fixed(Option<uint>), // [1,2,3,4]
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vstore_uniq, // ~[1,2,3,4]
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vstore_box, // @[1,2,3,4]
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vstore_slice(@region) // &[1,2,3,4](foo)?
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}
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#[auto_serialize]
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#[auto_deserialize]
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enum expr_vstore {
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// FIXME (#3469): Change uint to @expr (actually only constant exprs)
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expr_vstore_fixed(Option<uint>), // [1,2,3,4]
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expr_vstore_uniq, // ~[1,2,3,4]
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expr_vstore_box, // @[1,2,3,4]
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expr_vstore_mut_box, // @mut [1,2,3,4]
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expr_vstore_slice // &[1,2,3,4]
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}
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pure fn is_blockish(p: ast::Proto) -> bool {
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match p {
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ProtoBorrowed => true,
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ProtoBare | ProtoUniq | ProtoBox => false
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}
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}
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#[auto_serialize]
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#[auto_deserialize]
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enum binop {
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add,
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subtract,
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mul,
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div,
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rem,
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and,
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or,
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bitxor,
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bitand,
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bitor,
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shl,
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shr,
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eq,
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lt,
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le,
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ne,
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ge,
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gt,
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}
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impl binop : cmp::Eq {
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pure fn eq(&self, other: &binop) -> bool {
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((*self) as uint) == ((*other) as uint)
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}
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pure fn ne(&self, other: &binop) -> bool { !(*self).eq(other) }
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}
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#[auto_serialize]
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#[auto_deserialize]
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enum unop {
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box(mutability),
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uniq(mutability),
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deref,
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not,
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neg
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}
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impl unop : cmp::Eq {
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pure fn eq(&self, other: &unop) -> bool {
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match (*self) {
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box(e0a) => {
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match (*other) {
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box(e0b) => e0a == e0b,
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_ => false
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}
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}
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uniq(e0a) => {
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match (*other) {
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uniq(e0b) => e0a == e0b,
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_ => false
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}
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}
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deref => {
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match (*other) {
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deref => true,
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_ => false
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}
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}
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not => {
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match (*other) {
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not => true,
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_ => false
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}
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}
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neg => {
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match (*other) {
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neg => true,
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_ => false
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}
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}
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}
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}
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pure fn ne(&self, other: &unop) -> bool {
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!(*self).eq(other)
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}
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}
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|
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// Generally, after typeck you can get the inferred value
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|
// using ty::resolved_T(...).
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|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum inferable<T> {
|
|
expl(T),
|
|
infer(node_id)
|
|
}
|
|
|
|
impl<T: to_bytes::IterBytes> inferable<T> : to_bytes::IterBytes {
|
|
pure fn iter_bytes(&self, +lsb0: bool, f: to_bytes::Cb) {
|
|
match *self {
|
|
expl(ref t) =>
|
|
to_bytes::iter_bytes_2(&0u8, t, lsb0, f),
|
|
|
|
infer(ref n) =>
|
|
to_bytes::iter_bytes_2(&1u8, n, lsb0, f),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<T:cmp::Eq> inferable<T> : cmp::Eq {
|
|
pure fn eq(&self, other: &inferable<T>) -> bool {
|
|
match (*self) {
|
|
expl(ref e0a) => {
|
|
match (*other) {
|
|
expl(ref e0b) => (*e0a) == (*e0b),
|
|
_ => false
|
|
}
|
|
}
|
|
infer(e0a) => {
|
|
match (*other) {
|
|
infer(e0b) => e0a == e0b,
|
|
_ => false
|
|
}
|
|
}
|
|
}
|
|
}
|
|
pure fn ne(&self, other: &inferable<T>) -> bool { !(*self).eq(other) }
|
|
}
|
|
|
|
// "resolved" mode: the real modes.
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum rmode { by_ref, by_val, by_move, by_copy }
|
|
|
|
impl rmode : to_bytes::IterBytes {
|
|
pure fn iter_bytes(&self, +lsb0: bool, f: to_bytes::Cb) {
|
|
(*self as u8).iter_bytes(lsb0, f)
|
|
}
|
|
}
|
|
|
|
|
|
impl rmode : cmp::Eq {
|
|
pure fn eq(&self, other: &rmode) -> bool {
|
|
((*self) as uint) == ((*other) as uint)
|
|
}
|
|
pure fn ne(&self, other: &rmode) -> bool { !(*self).eq(other) }
|
|
}
|
|
|
|
// inferable mode.
|
|
type mode = inferable<rmode>;
|
|
|
|
type stmt = spanned<stmt_>;
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum stmt_ {
|
|
stmt_decl(@decl, node_id),
|
|
|
|
// expr without trailing semi-colon (must have unit type):
|
|
stmt_expr(@expr, node_id),
|
|
|
|
// expr with trailing semi-colon (may have any type):
|
|
stmt_semi(@expr, node_id),
|
|
|
|
// bool: is there a trailing sem-colon?
|
|
stmt_mac(mac, bool),
|
|
}
|
|
|
|
// FIXME (pending discussion of #1697, #2178...): local should really be
|
|
// a refinement on pat.
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type local_ = {is_mutbl: bool, ty: @Ty, pat: @pat,
|
|
init: Option<@expr>, id: node_id};
|
|
|
|
type local = spanned<local_>;
|
|
|
|
type decl = spanned<decl_>;
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum decl_ { decl_local(~[@local]), decl_item(@item), }
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type arm = {pats: ~[@pat], guard: Option<@expr>, body: blk};
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type field_ = {mutbl: mutability, ident: ident, expr: @expr};
|
|
|
|
type field = spanned<field_>;
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum blk_check_mode { default_blk, unsafe_blk, }
|
|
|
|
impl blk_check_mode : cmp::Eq {
|
|
pure fn eq(&self, other: &blk_check_mode) -> bool {
|
|
match ((*self), (*other)) {
|
|
(default_blk, default_blk) => true,
|
|
(unsafe_blk, unsafe_blk) => true,
|
|
(default_blk, _) => false,
|
|
(unsafe_blk, _) => false,
|
|
}
|
|
}
|
|
pure fn ne(&self, other: &blk_check_mode) -> bool { !(*self).eq(other) }
|
|
}
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type expr = {id: node_id, callee_id: node_id, node: expr_, span: span};
|
|
// Extra node ID is only used for index, assign_op, unary, binary, method call
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum log_level { error, debug, log_other }
|
|
// 0 = error, 1 = debug, 2 = log_other
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum expr_ {
|
|
expr_vstore(@expr, expr_vstore),
|
|
expr_vec(~[@expr], mutability),
|
|
expr_rec(~[field], Option<@expr>),
|
|
expr_call(@expr, ~[@expr], bool), // True iff last argument is a block
|
|
expr_method_call(@expr, ident, ~[@Ty], ~[@expr], bool), // Ditto
|
|
expr_tup(~[@expr]),
|
|
expr_binary(binop, @expr, @expr),
|
|
expr_unary(unop, @expr),
|
|
expr_lit(@lit),
|
|
expr_cast(@expr, @Ty),
|
|
expr_if(@expr, blk, Option<@expr>),
|
|
expr_while(@expr, blk),
|
|
/* Conditionless loop (can be exited with break, cont, ret, or fail)
|
|
Same semantics as while(true) { body }, but typestate knows that the
|
|
(implicit) condition is always true. */
|
|
expr_loop(blk, Option<ident>),
|
|
expr_match(@expr, ~[arm]),
|
|
expr_fn(Proto, fn_decl, blk, capture_clause),
|
|
expr_fn_block(fn_decl, blk, capture_clause),
|
|
// Inner expr is always an expr_fn_block. We need the wrapping node to
|
|
// easily type this (a function returning nil on the inside but bool on
|
|
// the outside).
|
|
expr_loop_body(@expr),
|
|
// Like expr_loop_body but for 'do' blocks
|
|
expr_do_body(@expr),
|
|
expr_block(blk),
|
|
|
|
expr_copy(@expr),
|
|
expr_unary_move(@expr),
|
|
expr_assign(@expr, @expr),
|
|
expr_swap(@expr, @expr),
|
|
expr_assign_op(binop, @expr, @expr),
|
|
expr_field(@expr, ident, ~[@Ty]),
|
|
expr_index(@expr, @expr),
|
|
expr_path(@path),
|
|
expr_addr_of(mutability, @expr),
|
|
expr_fail(Option<@expr>),
|
|
expr_break(Option<ident>),
|
|
expr_again(Option<ident>),
|
|
expr_ret(Option<@expr>),
|
|
expr_log(log_level, @expr, @expr),
|
|
|
|
/* just an assert */
|
|
expr_assert(@expr),
|
|
|
|
expr_mac(mac),
|
|
|
|
// A struct literal expression.
|
|
expr_struct(@path, ~[field], Option<@expr>),
|
|
|
|
// A vector literal constructed from one repeated element.
|
|
expr_repeat(@expr /* element */, @expr /* count */, mutability),
|
|
|
|
// No-op: used solely so we can pretty-print faithfully
|
|
expr_paren(@expr)
|
|
}
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type capture_item_ = {
|
|
id: int,
|
|
is_move: bool,
|
|
name: ident, // Currently, can only capture a local var.
|
|
span: span
|
|
};
|
|
|
|
type capture_item = @capture_item_;
|
|
|
|
type capture_clause = @~[capture_item];
|
|
|
|
//
|
|
// When the main rust parser encounters a syntax-extension invocation, it
|
|
// parses the arguments to the invocation as a token-tree. This is a very
|
|
// loose structure, such that all sorts of different AST-fragments can
|
|
// be passed to syntax extensions using a uniform type.
|
|
//
|
|
// If the syntax extension is an MBE macro, it will attempt to match its
|
|
// LHS "matchers" against the provided token tree, and if it finds a
|
|
// match, will transcribe the RHS token tree, splicing in any captured
|
|
// macro_parser::matched_nonterminals into the tt_nonterminals it finds.
|
|
//
|
|
// The RHS of an MBE macro is the only place a tt_nonterminal or tt_seq
|
|
// makes any real sense. You could write them elsewhere but nothing
|
|
// else knows what to do with them, so you'll probably get a syntax
|
|
// error.
|
|
//
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
#[doc="For macro invocations; parsing is delegated to the macro"]
|
|
enum token_tree {
|
|
tt_tok(span, token::Token),
|
|
tt_delim(~[token_tree]),
|
|
// These only make sense for right-hand-sides of MBE macros
|
|
tt_seq(span, ~[token_tree], Option<token::Token>, bool),
|
|
tt_nonterminal(span, ident)
|
|
}
|
|
|
|
//
|
|
// Matchers are nodes defined-by and recognized-by the main rust parser and
|
|
// language, but they're only ever found inside syntax-extension invocations;
|
|
// indeed, the only thing that ever _activates_ the rules in the rust parser
|
|
// for parsing a matcher is a matcher looking for the 'matchers' nonterminal
|
|
// itself. Matchers represent a small sub-language for pattern-matching
|
|
// token-trees, and are thus primarily used by the macro-defining extension
|
|
// itself.
|
|
//
|
|
// match_tok
|
|
// ---------
|
|
//
|
|
// A matcher that matches a single token, denoted by the token itself. So
|
|
// long as there's no $ involved.
|
|
//
|
|
//
|
|
// match_seq
|
|
// ---------
|
|
//
|
|
// A matcher that matches a sequence of sub-matchers, denoted various
|
|
// possible ways:
|
|
//
|
|
// $(M)* zero or more Ms
|
|
// $(M)+ one or more Ms
|
|
// $(M),+ one or more comma-separated Ms
|
|
// $(A B C);* zero or more semi-separated 'A B C' seqs
|
|
//
|
|
//
|
|
// match_nonterminal
|
|
// -----------------
|
|
//
|
|
// A matcher that matches one of a few interesting named rust
|
|
// nonterminals, such as types, expressions, items, or raw token-trees. A
|
|
// black-box matcher on expr, for example, binds an expr to a given ident,
|
|
// and that ident can re-occur as an interpolation in the RHS of a
|
|
// macro-by-example rule. For example:
|
|
//
|
|
// $foo:expr => 1 + $foo // interpolate an expr
|
|
// $foo:tt => $foo // interpolate a token-tree
|
|
// $foo:tt => bar! $foo // only other valid interpolation
|
|
// // is in arg position for another
|
|
// // macro
|
|
//
|
|
// As a final, horrifying aside, note that macro-by-example's input is
|
|
// also matched by one of these matchers. Holy self-referential! It is matched
|
|
// by an match_seq, specifically this one:
|
|
//
|
|
// $( $lhs:matchers => $rhs:tt );+
|
|
//
|
|
// If you understand that, you have closed to loop and understand the whole
|
|
// macro system. Congratulations.
|
|
//
|
|
type matcher = spanned<matcher_>;
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum matcher_ {
|
|
// match one token
|
|
match_tok(token::Token),
|
|
// match repetitions of a sequence: body, separator, zero ok?,
|
|
// lo, hi position-in-match-array used:
|
|
match_seq(~[matcher], Option<token::Token>, bool, uint, uint),
|
|
// parse a Rust NT: name to bind, name of NT, position in match array:
|
|
match_nonterminal(ident, ident, uint)
|
|
}
|
|
|
|
type mac = spanned<mac_>;
|
|
|
|
type mac_arg = Option<@expr>;
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type mac_body_ = {span: span};
|
|
|
|
type mac_body = Option<mac_body_>;
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum mac_ {
|
|
mac_invoc(@path, mac_arg, mac_body), // old macro-invocation
|
|
mac_invoc_tt(@path,~[token_tree]), // new macro-invocation
|
|
mac_ellipsis, // old pattern-match (obsolete)
|
|
|
|
// the span is used by the quoter/anti-quoter ...
|
|
mac_aq(span /* span of quote */, @expr), // anti-quote
|
|
mac_var(uint)
|
|
}
|
|
|
|
type lit = spanned<lit_>;
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum lit_ {
|
|
lit_str(@~str),
|
|
lit_int(i64, int_ty),
|
|
lit_uint(u64, uint_ty),
|
|
lit_int_unsuffixed(i64),
|
|
lit_float(@~str, float_ty),
|
|
lit_float_unsuffixed(@~str),
|
|
lit_nil,
|
|
lit_bool(bool),
|
|
}
|
|
|
|
impl ast::lit_: cmp::Eq {
|
|
pure fn eq(&self, other: &ast::lit_) -> bool {
|
|
match ((*self), *other) {
|
|
(lit_str(a), lit_str(b)) => a == b,
|
|
(lit_int(val_a, ty_a), lit_int(val_b, ty_b)) => {
|
|
val_a == val_b && ty_a == ty_b
|
|
}
|
|
(lit_uint(val_a, ty_a), lit_uint(val_b, ty_b)) => {
|
|
val_a == val_b && ty_a == ty_b
|
|
}
|
|
(lit_int_unsuffixed(a), lit_int_unsuffixed(b)) => a == b,
|
|
(lit_float(val_a, ty_a), lit_float(val_b, ty_b)) => {
|
|
val_a == val_b && ty_a == ty_b
|
|
}
|
|
(lit_float_unsuffixed(a), lit_float_unsuffixed(b)) => a == b,
|
|
(lit_nil, lit_nil) => true,
|
|
(lit_bool(a), lit_bool(b)) => a == b,
|
|
(lit_str(_), _) => false,
|
|
(lit_int(*), _) => false,
|
|
(lit_uint(*), _) => false,
|
|
(lit_int_unsuffixed(*), _) => false,
|
|
(lit_float(*), _) => false,
|
|
(lit_float_unsuffixed(*), _) => false,
|
|
(lit_nil, _) => false,
|
|
(lit_bool(_), _) => false
|
|
}
|
|
}
|
|
pure fn ne(&self, other: &ast::lit_) -> bool { !(*self).eq(other) }
|
|
}
|
|
|
|
// NB: If you change this, you'll probably want to change the corresponding
|
|
// type structure in middle/ty.rs as well.
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type mt = {ty: @Ty, mutbl: mutability};
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type ty_field_ = {ident: ident, mt: mt};
|
|
|
|
type ty_field = spanned<ty_field_>;
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type ty_method = {ident: ident, attrs: ~[attribute], purity: purity,
|
|
decl: fn_decl, tps: ~[ty_param], self_ty: self_ty,
|
|
id: node_id, span: span};
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
// A trait method is either required (meaning it doesn't have an
|
|
// implementation, just a signature) or provided (meaning it has a default
|
|
// implementation).
|
|
enum trait_method {
|
|
required(ty_method),
|
|
provided(@method),
|
|
}
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum int_ty { ty_i, ty_char, ty_i8, ty_i16, ty_i32, ty_i64, }
|
|
|
|
impl int_ty : to_bytes::IterBytes {
|
|
pure fn iter_bytes(&self, +lsb0: bool, f: to_bytes::Cb) {
|
|
(*self as u8).iter_bytes(lsb0, f)
|
|
}
|
|
}
|
|
|
|
impl int_ty : cmp::Eq {
|
|
pure fn eq(&self, other: &int_ty) -> bool {
|
|
match ((*self), (*other)) {
|
|
(ty_i, ty_i) => true,
|
|
(ty_char, ty_char) => true,
|
|
(ty_i8, ty_i8) => true,
|
|
(ty_i16, ty_i16) => true,
|
|
(ty_i32, ty_i32) => true,
|
|
(ty_i64, ty_i64) => true,
|
|
(ty_i, _) => false,
|
|
(ty_char, _) => false,
|
|
(ty_i8, _) => false,
|
|
(ty_i16, _) => false,
|
|
(ty_i32, _) => false,
|
|
(ty_i64, _) => false,
|
|
}
|
|
}
|
|
pure fn ne(&self, other: &int_ty) -> bool { !(*self).eq(other) }
|
|
}
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum uint_ty { ty_u, ty_u8, ty_u16, ty_u32, ty_u64, }
|
|
|
|
impl uint_ty : to_bytes::IterBytes {
|
|
pure fn iter_bytes(&self, +lsb0: bool, f: to_bytes::Cb) {
|
|
(*self as u8).iter_bytes(lsb0, f)
|
|
}
|
|
}
|
|
|
|
impl uint_ty : cmp::Eq {
|
|
pure fn eq(&self, other: &uint_ty) -> bool {
|
|
match ((*self), (*other)) {
|
|
(ty_u, ty_u) => true,
|
|
(ty_u8, ty_u8) => true,
|
|
(ty_u16, ty_u16) => true,
|
|
(ty_u32, ty_u32) => true,
|
|
(ty_u64, ty_u64) => true,
|
|
(ty_u, _) => false,
|
|
(ty_u8, _) => false,
|
|
(ty_u16, _) => false,
|
|
(ty_u32, _) => false,
|
|
(ty_u64, _) => false
|
|
}
|
|
}
|
|
pure fn ne(&self, other: &uint_ty) -> bool { !(*self).eq(other) }
|
|
}
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum float_ty { ty_f, ty_f32, ty_f64, }
|
|
|
|
impl float_ty : to_bytes::IterBytes {
|
|
pure fn iter_bytes(&self, +lsb0: bool, f: to_bytes::Cb) {
|
|
(*self as u8).iter_bytes(lsb0, f)
|
|
}
|
|
}
|
|
|
|
impl float_ty : cmp::Eq {
|
|
pure fn eq(&self, other: &float_ty) -> bool {
|
|
match ((*self), (*other)) {
|
|
(ty_f, ty_f) | (ty_f32, ty_f32) | (ty_f64, ty_f64) => true,
|
|
(ty_f, _) | (ty_f32, _) | (ty_f64, _) => false
|
|
}
|
|
}
|
|
pure fn ne(&self, other: &float_ty) -> bool { !(*self).eq(other) }
|
|
}
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type Ty = {id: node_id, node: ty_, span: span};
|
|
|
|
// Not represented directly in the AST, referred to by name through a ty_path.
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum prim_ty {
|
|
ty_int(int_ty),
|
|
ty_uint(uint_ty),
|
|
ty_float(float_ty),
|
|
ty_str,
|
|
ty_bool,
|
|
}
|
|
|
|
impl prim_ty : cmp::Eq {
|
|
pure fn eq(&self, other: &prim_ty) -> bool {
|
|
match (*self) {
|
|
ty_int(e0a) => {
|
|
match (*other) {
|
|
ty_int(e0b) => e0a == e0b,
|
|
_ => false
|
|
}
|
|
}
|
|
ty_uint(e0a) => {
|
|
match (*other) {
|
|
ty_uint(e0b) => e0a == e0b,
|
|
_ => false
|
|
}
|
|
}
|
|
ty_float(e0a) => {
|
|
match (*other) {
|
|
ty_float(e0b) => e0a == e0b,
|
|
_ => false
|
|
}
|
|
}
|
|
ty_str => {
|
|
match (*other) {
|
|
ty_str => true,
|
|
_ => false
|
|
}
|
|
}
|
|
ty_bool => {
|
|
match (*other) {
|
|
ty_bool => true,
|
|
_ => false
|
|
}
|
|
}
|
|
}
|
|
}
|
|
pure fn ne(&self, other: &prim_ty) -> bool { !(*self).eq(other) }
|
|
}
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type region = {id: node_id, node: region_};
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum region_ {
|
|
re_anon,
|
|
re_static,
|
|
re_self,
|
|
re_named(ident)
|
|
}
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum Onceness {
|
|
Once,
|
|
Many
|
|
}
|
|
|
|
impl Onceness : cmp::Eq {
|
|
pure fn eq(&self, other: &Onceness) -> bool {
|
|
match ((*self), *other) {
|
|
(Once, Once) | (Many, Many) => true,
|
|
_ => false
|
|
}
|
|
}
|
|
pure fn ne(&self, other: &Onceness) -> bool {
|
|
!(*self).eq(other)
|
|
}
|
|
}
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
struct TyFn {
|
|
proto: Proto,
|
|
region: Option<@region>,
|
|
purity: purity,
|
|
onceness: Onceness,
|
|
bounds: @~[ty_param_bound],
|
|
decl: fn_decl
|
|
}
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum ty_ {
|
|
ty_nil,
|
|
ty_bot, /* bottom type */
|
|
ty_box(mt),
|
|
ty_uniq(mt),
|
|
ty_vec(mt),
|
|
ty_fixed_length_vec(mt, uint),
|
|
ty_ptr(mt),
|
|
ty_rptr(@region, mt),
|
|
ty_rec(~[ty_field]),
|
|
ty_fn(@TyFn),
|
|
ty_tup(~[@Ty]),
|
|
ty_path(@path, node_id),
|
|
ty_mac(mac),
|
|
// ty_infer means the type should be inferred instead of it having been
|
|
// specified. This should only appear at the "top level" of a type and not
|
|
// nested in one.
|
|
ty_infer,
|
|
}
|
|
|
|
// Equality and byte-iter (hashing) can be quite approximate for AST types.
|
|
// since we only care about this for normalizing them to "real" types.
|
|
impl Ty : cmp::Eq {
|
|
pure fn eq(&self, other: &Ty) -> bool {
|
|
ptr::addr_of(&(*self)) == ptr::addr_of(&(*other))
|
|
}
|
|
pure fn ne(&self, other: &Ty) -> bool {
|
|
ptr::addr_of(&(*self)) != ptr::addr_of(&(*other))
|
|
}
|
|
}
|
|
|
|
impl Ty : to_bytes::IterBytes {
|
|
pure fn iter_bytes(&self, +lsb0: bool, f: to_bytes::Cb) {
|
|
to_bytes::iter_bytes_2(&self.span.lo, &self.span.hi, lsb0, f);
|
|
}
|
|
}
|
|
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type arg = {mode: mode, ty: @Ty, pat: @pat, id: node_id};
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type fn_decl =
|
|
{inputs: ~[arg],
|
|
output: @Ty,
|
|
cf: ret_style};
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum purity {
|
|
pure_fn, // declared with "pure fn"
|
|
unsafe_fn, // declared with "unsafe fn"
|
|
impure_fn, // declared with "fn"
|
|
extern_fn, // declared with "extern fn"
|
|
}
|
|
|
|
impl purity : to_bytes::IterBytes {
|
|
pure fn iter_bytes(&self, +lsb0: bool, f: to_bytes::Cb) {
|
|
(*self as u8).iter_bytes(lsb0, f)
|
|
}
|
|
}
|
|
|
|
impl purity : cmp::Eq {
|
|
pure fn eq(&self, other: &purity) -> bool {
|
|
((*self) as uint) == ((*other) as uint)
|
|
}
|
|
pure fn ne(&self, other: &purity) -> bool { !(*self).eq(other) }
|
|
}
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum ret_style {
|
|
noreturn, // functions with return type _|_ that always
|
|
// raise an error or exit (i.e. never return to the caller)
|
|
return_val, // everything else
|
|
}
|
|
|
|
impl ret_style : to_bytes::IterBytes {
|
|
pure fn iter_bytes(&self, +lsb0: bool, f: to_bytes::Cb) {
|
|
(*self as u8).iter_bytes(lsb0, f)
|
|
}
|
|
}
|
|
|
|
impl ret_style : cmp::Eq {
|
|
pure fn eq(&self, other: &ret_style) -> bool {
|
|
match ((*self), (*other)) {
|
|
(noreturn, noreturn) => true,
|
|
(return_val, return_val) => true,
|
|
(noreturn, _) => false,
|
|
(return_val, _) => false,
|
|
}
|
|
}
|
|
pure fn ne(&self, other: &ret_style) -> bool { !(*self).eq(other) }
|
|
}
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum self_ty_ {
|
|
sty_static, // no self: static method
|
|
sty_by_ref, // old by-reference self: ``
|
|
sty_value, // by-value self: `self`
|
|
sty_region(mutability), // by-region self: `&self`
|
|
sty_box(mutability), // by-managed-pointer self: `@self`
|
|
sty_uniq(mutability) // by-unique-pointer self: `~self`
|
|
}
|
|
|
|
impl self_ty_ : cmp::Eq {
|
|
pure fn eq(&self, other: &self_ty_) -> bool {
|
|
match (*self) {
|
|
sty_static => {
|
|
match (*other) {
|
|
sty_static => true,
|
|
_ => false
|
|
}
|
|
}
|
|
sty_by_ref => {
|
|
match (*other) {
|
|
sty_by_ref => true,
|
|
_ => false
|
|
}
|
|
}
|
|
sty_value => {
|
|
match (*other) {
|
|
sty_value => true,
|
|
_ => false
|
|
}
|
|
}
|
|
sty_region(e0a) => {
|
|
match (*other) {
|
|
sty_region(e0b) => e0a == e0b,
|
|
_ => false
|
|
}
|
|
}
|
|
sty_box(e0a) => {
|
|
match (*other) {
|
|
sty_box(e0b) => e0a == e0b,
|
|
_ => false
|
|
}
|
|
}
|
|
sty_uniq(e0a) => {
|
|
match (*other) {
|
|
sty_uniq(e0b) => e0a == e0b,
|
|
_ => false
|
|
}
|
|
}
|
|
}
|
|
}
|
|
pure fn ne(&self, other: &self_ty_) -> bool { !(*self).eq(other) }
|
|
}
|
|
|
|
type self_ty = spanned<self_ty_>;
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type method = {ident: ident, attrs: ~[attribute],
|
|
tps: ~[ty_param], self_ty: self_ty,
|
|
purity: purity, decl: fn_decl, body: blk,
|
|
id: node_id, span: span, self_id: node_id,
|
|
vis: visibility};
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type _mod = {view_items: ~[@view_item], items: ~[@item]};
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum foreign_abi {
|
|
foreign_abi_rust_intrinsic,
|
|
foreign_abi_cdecl,
|
|
foreign_abi_stdcall,
|
|
}
|
|
|
|
// Foreign mods can be named or anonymous
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum foreign_mod_sort { named, anonymous }
|
|
|
|
impl foreign_mod_sort : cmp::Eq {
|
|
pure fn eq(&self, other: &foreign_mod_sort) -> bool {
|
|
((*self) as uint) == ((*other) as uint)
|
|
}
|
|
pure fn ne(&self, other: &foreign_mod_sort) -> bool { !(*self).eq(other) }
|
|
}
|
|
|
|
impl foreign_abi : cmp::Eq {
|
|
pure fn eq(&self, other: &foreign_abi) -> bool {
|
|
match ((*self), (*other)) {
|
|
(foreign_abi_rust_intrinsic, foreign_abi_rust_intrinsic) => true,
|
|
(foreign_abi_cdecl, foreign_abi_cdecl) => true,
|
|
(foreign_abi_stdcall, foreign_abi_stdcall) => true,
|
|
(foreign_abi_rust_intrinsic, _) => false,
|
|
(foreign_abi_cdecl, _) => false,
|
|
(foreign_abi_stdcall, _) => false,
|
|
}
|
|
}
|
|
pure fn ne(&self, other: &foreign_abi) -> bool { !(*self).eq(other) }
|
|
}
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type foreign_mod =
|
|
{sort: foreign_mod_sort,
|
|
abi: ident,
|
|
view_items: ~[@view_item],
|
|
items: ~[@foreign_item]};
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type variant_arg = {ty: @Ty, id: node_id};
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum variant_kind {
|
|
tuple_variant_kind(~[variant_arg]),
|
|
struct_variant_kind(@struct_def),
|
|
enum_variant_kind(enum_def)
|
|
}
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type enum_def_ = { variants: ~[variant], common: Option<@struct_def> };
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum enum_def = enum_def_;
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type variant_ = {name: ident, attrs: ~[attribute], kind: variant_kind,
|
|
id: node_id, disr_expr: Option<@expr>, vis: visibility};
|
|
|
|
type variant = spanned<variant_>;
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type path_list_ident_ = {name: ident, id: node_id};
|
|
|
|
type path_list_ident = spanned<path_list_ident_>;
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum namespace { module_ns, type_value_ns }
|
|
|
|
impl namespace : cmp::Eq {
|
|
pure fn eq(&self, other: &namespace) -> bool {
|
|
((*self) as uint) == ((*other) as uint)
|
|
}
|
|
pure fn ne(&self, other: &namespace) -> bool { !(*self).eq(other) }
|
|
}
|
|
|
|
type view_path = spanned<view_path_>;
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum view_path_ {
|
|
|
|
// quux = foo::bar::baz
|
|
//
|
|
// or just
|
|
//
|
|
// foo::bar::baz (with 'baz =' implicitly on the left)
|
|
view_path_simple(ident, @path, namespace, node_id),
|
|
|
|
// foo::bar::*
|
|
view_path_glob(@path, node_id),
|
|
|
|
// foo::bar::{a,b,c}
|
|
view_path_list(@path, ~[path_list_ident], node_id)
|
|
}
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type view_item = {node: view_item_, attrs: ~[attribute],
|
|
vis: visibility, span: span};
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum view_item_ {
|
|
view_item_use(ident, ~[@meta_item], node_id),
|
|
view_item_import(~[@view_path]),
|
|
view_item_export(~[@view_path])
|
|
}
|
|
|
|
// Meta-data associated with an item
|
|
type attribute = spanned<attribute_>;
|
|
|
|
// Distinguishes between attributes that decorate items and attributes that
|
|
// are contained as statements within items. These two cases need to be
|
|
// distinguished for pretty-printing.
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum attr_style { attr_outer, attr_inner, }
|
|
|
|
impl attr_style : cmp::Eq {
|
|
pure fn eq(&self, other: &attr_style) -> bool {
|
|
((*self) as uint) == ((*other) as uint)
|
|
}
|
|
pure fn ne(&self, other: &attr_style) -> bool { !(*self).eq(other) }
|
|
}
|
|
|
|
// doc-comments are promoted to attributes that have is_sugared_doc = true
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type attribute_ = {style: attr_style, value: meta_item, is_sugared_doc: bool};
|
|
|
|
/*
|
|
trait_refs appear in both impls and in classes that implement traits.
|
|
resolve maps each trait_ref's ref_id to its defining trait; that's all
|
|
that the ref_id is for. The impl_id maps to the "self type" of this impl.
|
|
If this impl is an item_impl, the impl_id is redundant (it could be the
|
|
same as the impl's node id). If this impl is actually an impl_class, then
|
|
conceptually, the impl_id stands in for the pair of (this class, this
|
|
trait)
|
|
*/
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type trait_ref = {path: @path, ref_id: node_id, impl_id: node_id};
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum visibility { public, private, inherited }
|
|
|
|
impl visibility : cmp::Eq {
|
|
pure fn eq(&self, other: &visibility) -> bool {
|
|
match ((*self), (*other)) {
|
|
(public, public) => true,
|
|
(private, private) => true,
|
|
(inherited, inherited) => true,
|
|
(public, _) => false,
|
|
(private, _) => false,
|
|
(inherited, _) => false,
|
|
}
|
|
}
|
|
pure fn ne(&self, other: &visibility) -> bool { !(*self).eq(other) }
|
|
}
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type struct_field_ = {
|
|
kind: struct_field_kind,
|
|
id: node_id,
|
|
ty: @Ty
|
|
};
|
|
|
|
type struct_field = spanned<struct_field_>;
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum struct_field_kind {
|
|
named_field(ident, class_mutability, visibility),
|
|
unnamed_field // element of a tuple-like struct
|
|
}
|
|
|
|
impl struct_field_kind : cmp::Eq {
|
|
pure fn eq(&self, other: &struct_field_kind) -> bool {
|
|
match (*self) {
|
|
named_field(ident_a, class_mutability_a, visibility_a) => {
|
|
match *other {
|
|
named_field(ident_b, class_mutability_b, visibility_b)
|
|
=> {
|
|
ident_a == ident_b &&
|
|
class_mutability_a == class_mutability_b &&
|
|
visibility_a == visibility_b
|
|
}
|
|
unnamed_field => false
|
|
}
|
|
}
|
|
unnamed_field => {
|
|
match *other {
|
|
named_field(*) => false,
|
|
unnamed_field => true
|
|
}
|
|
}
|
|
}
|
|
}
|
|
pure fn ne(&self, other: &struct_field_kind) -> bool {
|
|
!(*self).eq(other)
|
|
}
|
|
}
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type struct_def = {
|
|
traits: ~[@trait_ref], /* traits this struct implements */
|
|
fields: ~[@struct_field], /* fields */
|
|
methods: ~[@method], /* methods */
|
|
/* (not including ctor or dtor) */
|
|
/* dtor is optional */
|
|
dtor: Option<class_dtor>,
|
|
/* ID of the constructor. This is only used for tuple- or enum-like
|
|
* structs. */
|
|
ctor_id: Option<node_id>
|
|
};
|
|
|
|
/*
|
|
FIXME (#3300): Should allow items to be anonymous. Right now
|
|
we just use dummy names for anon items.
|
|
*/
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type item = {ident: ident, attrs: ~[attribute],
|
|
id: node_id, node: item_,
|
|
vis: visibility, span: span};
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum item_ {
|
|
item_const(@Ty, @expr),
|
|
item_fn(fn_decl, purity, ~[ty_param], blk),
|
|
item_mod(_mod),
|
|
item_foreign_mod(foreign_mod),
|
|
item_ty(@Ty, ~[ty_param]),
|
|
item_enum(enum_def, ~[ty_param]),
|
|
item_class(@struct_def, ~[ty_param]),
|
|
item_trait(~[ty_param], ~[@trait_ref], ~[trait_method]),
|
|
item_impl(~[ty_param],
|
|
Option<@trait_ref>, /* (optional) trait this impl implements */
|
|
@Ty, /* self */
|
|
~[@method]),
|
|
item_mac(mac),
|
|
}
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum class_mutability { class_mutable, class_immutable }
|
|
|
|
impl class_mutability : to_bytes::IterBytes {
|
|
pure fn iter_bytes(&self, +lsb0: bool, f: to_bytes::Cb) {
|
|
(*self as u8).iter_bytes(lsb0, f)
|
|
}
|
|
}
|
|
|
|
impl class_mutability : cmp::Eq {
|
|
pure fn eq(&self, other: &class_mutability) -> bool {
|
|
match ((*self), (*other)) {
|
|
(class_mutable, class_mutable) => true,
|
|
(class_immutable, class_immutable) => true,
|
|
(class_mutable, _) => false,
|
|
(class_immutable, _) => false,
|
|
}
|
|
}
|
|
pure fn ne(&self, other: &class_mutability) -> bool { !(*self).eq(other) }
|
|
}
|
|
|
|
type class_ctor = spanned<class_ctor_>;
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type class_ctor_ = {id: node_id,
|
|
attrs: ~[attribute],
|
|
self_id: node_id,
|
|
dec: fn_decl,
|
|
body: blk};
|
|
|
|
type class_dtor = spanned<class_dtor_>;
|
|
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
type class_dtor_ = {id: node_id,
|
|
attrs: ~[attribute],
|
|
self_id: node_id,
|
|
body: blk};
|
|
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#[auto_serialize]
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|
#[auto_deserialize]
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|
type foreign_item =
|
|
{ident: ident,
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|
attrs: ~[attribute],
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|
node: foreign_item_,
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|
id: node_id,
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|
span: span,
|
|
vis: visibility};
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|
|
|
#[auto_serialize]
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|
#[auto_deserialize]
|
|
enum foreign_item_ {
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|
foreign_item_fn(fn_decl, purity, ~[ty_param]),
|
|
foreign_item_const(@Ty)
|
|
}
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|
|
|
// The data we save and restore about an inlined item or method. This is not
|
|
// part of the AST that we parse from a file, but it becomes part of the tree
|
|
// that we trans.
|
|
#[auto_serialize]
|
|
#[auto_deserialize]
|
|
enum inlined_item {
|
|
ii_item(@item),
|
|
ii_method(def_id /* impl id */, @method),
|
|
ii_foreign(@foreign_item),
|
|
ii_dtor(class_dtor, ident, ~[ty_param], def_id /* parent id */)
|
|
}
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|
|
|
|
|
//
|
|
// Local Variables:
|
|
// mode: rust
|
|
// fill-column: 78;
|
|
// indent-tabs-mode: nil
|
|
// c-basic-offset: 4
|
|
// buffer-file-coding-system: utf-8-unix
|
|
// End:
|
|
//
|