2012-12-03 18:48:01 -06:00
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// 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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2013-03-13 21:25:28 -05:00
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use abi::AbiSet;
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2012-09-04 13:37:29 -05:00
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use ast::*;
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use ast;
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use ast_util::{inlined_item_utils, stmt_id};
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use ast_util;
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use codemap::span;
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use codemap;
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use diagnostic::span_handler;
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use parse::token::ident_interner;
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use parse::token::special_idents;
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2012-12-23 16:41:37 -06:00
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use print::pprust;
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use visit::{Visitor, fn_kind};
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2012-12-23 16:41:37 -06:00
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use visit;
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2013-06-24 19:40:33 -05:00
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use std::hashmap::HashMap;
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use std::vec;
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2011-06-19 15:41:21 -05:00
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2013-07-02 14:47:32 -05:00
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#[deriving(Clone, Eq)]
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pub enum path_elt {
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path_mod(ident),
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path_name(ident)
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}
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pub type path = ~[path_elt];
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2012-02-03 02:53:37 -06:00
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pub fn path_to_str_with_sep(p: &[path_elt], sep: &str, itr: @ident_interner)
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-> ~str {
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let strs = do p.map |e| {
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match *e {
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path_mod(s) => itr.get(s.name),
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path_name(s) => itr.get(s.name)
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}
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};
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strs.connect(sep)
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}
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pub fn path_ident_to_str(p: &path, i: ident, itr: @ident_interner) -> ~str {
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if p.is_empty() {
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itr.get(i.name).to_owned()
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} else {
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fmt!("%s::%s", path_to_str(*p, itr), itr.get(i.name))
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}
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}
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pub fn path_to_str(p: &[path_elt], itr: @ident_interner) -> ~str {
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path_to_str_with_sep(p, "::", itr)
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}
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pub fn path_elt_to_str(pe: path_elt, itr: @ident_interner) -> ~str {
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match pe {
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path_mod(s) => itr.get(s.name).to_owned(),
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path_name(s) => itr.get(s.name).to_owned()
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}
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}
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#[deriving(Clone)]
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pub enum ast_node {
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node_item(@item, @path),
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node_foreign_item(@foreign_item, AbiSet, visibility, @path),
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node_trait_method(@trait_method, def_id /* trait did */,
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@path /* path to the trait */),
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node_method(@method, def_id /* impl did */, @path /* path to the impl */),
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node_variant(variant, @item, @path),
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node_expr(@expr),
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node_stmt(@stmt),
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node_arg,
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node_local(ident),
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node_block(Block),
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node_struct_ctor(@struct_def, @item, @path),
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node_callee_scope(@expr)
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}
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2013-07-27 03:25:59 -05:00
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pub type map = @mut HashMap<NodeId, ast_node>;
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pub struct Ctx {
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map: map,
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path: path,
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diag: @span_handler,
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}
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impl Ctx {
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fn extend(@mut self, elt: ident) -> @path {
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@vec::append(self.path.clone(), [path_name(elt)])
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}
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fn map_method(@mut self,
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impl_did: def_id,
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impl_path: @path,
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m: @method,
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is_provided: bool) {
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let entry = if is_provided {
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node_trait_method(@provided(m), impl_did, impl_path)
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} else {
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node_method(m, impl_did, impl_path)
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};
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self.map.insert(m.id, entry);
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self.map.insert(m.self_id, node_local(special_idents::self_));
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}
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fn map_struct_def(@mut self,
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struct_def: @ast::struct_def,
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parent_node: ast_node,
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ident: ast::ident) {
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let p = self.extend(ident);
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// If this is a tuple-like struct, register the constructor.
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match struct_def.ctor_id {
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None => {}
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Some(ctor_id) => {
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match parent_node {
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node_item(item, _) => {
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self.map.insert(ctor_id,
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node_struct_ctor(struct_def,
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item,
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p));
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}
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_ => fail!("struct def parent wasn't an item")
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}
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}
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}
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}
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fn map_expr(@mut self, ex: @expr) {
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self.map.insert(ex.id, node_expr(ex));
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// Expressions which are or might be calls:
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{
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let r = ex.get_callee_id();
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for callee_id in r.iter() {
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self.map.insert(*callee_id, node_callee_scope(ex));
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}
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}
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visit::visit_expr(self as @Visitor<()>, ex, ());
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}
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fn map_fn(@mut self,
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fk: &visit::fn_kind,
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decl: &fn_decl,
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body: &Block,
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sp: codemap::span,
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id: NodeId) {
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for a in decl.inputs.iter() {
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self.map.insert(a.id, node_arg);
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}
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visit::visit_fn(self as @Visitor<()>, fk, decl, body, sp, id, ());
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}
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fn map_stmt(@mut self, stmt: @stmt) {
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self.map.insert(stmt_id(stmt), node_stmt(stmt));
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visit::visit_stmt(self as @Visitor<()>, stmt, ());
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}
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fn map_block(@mut self, b: &Block) {
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// clone is FIXME #2543
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self.map.insert(b.id, node_block((*b).clone()));
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visit::visit_block(self as @Visitor<()>, b, ());
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}
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fn map_pat(@mut self, pat: @pat) {
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match pat.node {
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pat_ident(_, ref path, _) => {
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// Note: this is at least *potentially* a pattern...
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self.map.insert(pat.id,
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node_local(ast_util::path_to_ident(path)));
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}
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_ => ()
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}
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visit::visit_pat(self as @Visitor<()>, pat, ());
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}
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2012-03-06 06:57:07 -06:00
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}
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2013-07-19 20:42:11 -05:00
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impl Visitor<()> for Ctx {
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fn visit_item(@mut self, i: @item, _: ()) {
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// clone is FIXME #2543
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let item_path = @self.path.clone();
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self.map.insert(i.id, node_item(i, item_path));
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match i.node {
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item_impl(_, _, _, ref ms) => {
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let impl_did = ast_util::local_def(i.id);
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for m in ms.iter() {
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self.map_method(impl_did, self.extend(i.ident), *m, false)
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}
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}
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item_enum(ref enum_definition, _) => {
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for v in (*enum_definition).variants.iter() {
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// FIXME #2543: bad clone
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self.map.insert(v.node.id,
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node_variant((*v).clone(),
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i,
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self.extend(i.ident)));
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}
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}
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item_foreign_mod(ref nm) => {
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for nitem in nm.items.iter() {
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// Compute the visibility for this native item.
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let visibility = match nitem.vis {
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public => public,
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private => private,
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inherited => i.vis
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};
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self.map.insert(nitem.id,
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node_foreign_item(*nitem,
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nm.abis,
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visibility,
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// FIXME (#2543)
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if nm.sort ==
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ast::named {
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self.extend(i.ident)
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} else {
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// Anonymous extern
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// mods go in the
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// parent scope.
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@self.path.clone()
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}));
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}
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}
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item_struct(struct_def, _) => {
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self.map_struct_def(struct_def,
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node_item(i, item_path),
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i.ident)
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}
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item_trait(_, ref traits, ref methods) => {
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for p in traits.iter() {
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self.map.insert(p.ref_id, node_item(i, item_path));
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}
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for tm in methods.iter() {
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let id = ast_util::trait_method_to_ty_method(tm).id;
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let d_id = ast_util::local_def(i.id);
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self.map.insert(id,
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node_trait_method(@(*tm).clone(),
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d_id,
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item_path));
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}
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}
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_ => {}
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}
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match i.node {
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item_mod(_) | item_foreign_mod(_) => {
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self.path.push(path_mod(i.ident));
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}
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_ => self.path.push(path_name(i.ident))
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}
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visit::visit_item(self as @Visitor<()>, i, ());
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self.path.pop();
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}
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fn visit_pat(@mut self, pat: @pat, _: ()) {
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self.map_pat(pat);
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visit::visit_pat(self as @Visitor<()>, pat, ())
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}
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fn visit_expr(@mut self, expr: @expr, _: ()) {
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self.map_expr(expr)
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}
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fn visit_stmt(@mut self, stmt: @stmt, _: ()) {
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self.map_stmt(stmt)
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}
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fn visit_fn(@mut self,
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function_kind: &fn_kind,
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function_declaration: &fn_decl,
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block: &Block,
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span: span,
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node_id: NodeId,
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_: ()) {
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self.map_fn(function_kind, function_declaration, block, span, node_id)
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}
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fn visit_block(@mut self, block: &Block, _: ()) {
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self.map_block(block)
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}
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// XXX: Methods below can become default methods.
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fn visit_mod(@mut self, module: &_mod, _: span, _: NodeId, _: ()) {
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visit::visit_mod(self as @Visitor<()>, module, ())
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}
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fn visit_view_item(@mut self, view_item: &view_item, _: ()) {
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visit::visit_view_item(self as @Visitor<()>, view_item, ())
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}
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fn visit_foreign_item(@mut self, foreign_item: @foreign_item, _: ()) {
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visit::visit_foreign_item(self as @Visitor<()>, foreign_item, ())
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}
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fn visit_local(@mut self, local: @Local, _: ()) {
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visit::visit_local(self as @Visitor<()>, local, ())
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}
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fn visit_arm(@mut self, arm: &arm, _: ()) {
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visit::visit_arm(self as @Visitor<()>, arm, ())
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}
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fn visit_decl(@mut self, decl: @decl, _: ()) {
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visit::visit_decl(self as @Visitor<()>, decl, ())
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}
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fn visit_expr_post(@mut self, _: @expr, _: ()) {
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// Empty!
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}
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fn visit_ty(@mut self, typ: &Ty, _: ()) {
|
|
|
|
visit::visit_ty(self as @Visitor<()>, typ, ())
|
|
|
|
}
|
|
|
|
|
|
|
|
fn visit_generics(@mut self, generics: &Generics, _: ()) {
|
|
|
|
visit::visit_generics(self as @Visitor<()>, generics, ())
|
|
|
|
}
|
|
|
|
|
|
|
|
fn visit_fn(@mut self,
|
|
|
|
function_kind: &fn_kind,
|
|
|
|
function_declaration: &fn_decl,
|
|
|
|
block: &Block,
|
|
|
|
span: span,
|
|
|
|
node_id: NodeId,
|
|
|
|
_: ()) {
|
|
|
|
visit::visit_fn(self as @Visitor<()>,
|
|
|
|
function_kind,
|
|
|
|
function_declaration,
|
|
|
|
block,
|
|
|
|
span,
|
|
|
|
node_id,
|
|
|
|
())
|
|
|
|
}
|
|
|
|
|
|
|
|
fn visit_ty_method(@mut self, ty_method: &TypeMethod, _: ()) {
|
|
|
|
visit::visit_ty_method(self as @Visitor<()>, ty_method, ())
|
|
|
|
}
|
|
|
|
|
|
|
|
fn visit_trait_method(@mut self, trait_method: &trait_method, _: ()) {
|
|
|
|
visit::visit_trait_method(self as @Visitor<()>, trait_method, ())
|
|
|
|
}
|
|
|
|
|
|
|
|
fn visit_struct_def(@mut self,
|
|
|
|
struct_def: @struct_def,
|
|
|
|
ident: ident,
|
|
|
|
generics: &Generics,
|
|
|
|
node_id: NodeId,
|
|
|
|
_: ()) {
|
|
|
|
visit::visit_struct_def(self as @Visitor<()>,
|
|
|
|
struct_def,
|
|
|
|
ident,
|
|
|
|
generics,
|
|
|
|
node_id,
|
|
|
|
())
|
|
|
|
}
|
|
|
|
|
|
|
|
fn visit_struct_field(@mut self, struct_field: @struct_field, _: ()) {
|
|
|
|
visit::visit_struct_field(self as @Visitor<()>, struct_field, ())
|
|
|
|
}
|
2012-02-14 17:21:53 -06:00
|
|
|
}
|
|
|
|
|
2013-07-19 00:38:55 -05:00
|
|
|
pub fn map_crate(diag: @span_handler, c: &Crate) -> map {
|
2013-02-04 16:02:01 -06:00
|
|
|
let cx = @mut Ctx {
|
2013-04-03 08:28:36 -05:00
|
|
|
map: @mut HashMap::new(),
|
2013-02-04 16:02:01 -06:00
|
|
|
path: ~[],
|
2013-01-17 10:55:28 -06:00
|
|
|
diag: diag,
|
|
|
|
};
|
2013-07-19 20:42:11 -05:00
|
|
|
visit::visit_crate(cx as @Visitor<()>, c, ());
|
2013-03-23 20:45:27 -05:00
|
|
|
cx.map
|
2011-06-19 15:41:21 -05:00
|
|
|
}
|
|
|
|
|
2012-02-14 17:21:53 -06:00
|
|
|
// Used for items loaded from external crate that are being inlined into this
|
2012-03-02 15:14:10 -06:00
|
|
|
// crate. The `path` should be the path to the item but should not include
|
|
|
|
// the item itself.
|
2013-03-12 15:00:50 -05:00
|
|
|
pub fn map_decoded_item(diag: @span_handler,
|
2013-02-04 16:02:01 -06:00
|
|
|
map: map,
|
2013-04-17 11:15:08 -05:00
|
|
|
path: path,
|
|
|
|
ii: &inlined_item) {
|
2012-02-14 17:21:53 -06:00
|
|
|
// I believe it is ok for the local IDs of inlined items from other crates
|
|
|
|
// to overlap with the local ids from this crate, so just generate the ids
|
2013-07-19 20:42:11 -05:00
|
|
|
// starting from 0.
|
2013-02-04 16:02:01 -06:00
|
|
|
let cx = @mut Ctx {
|
2013-03-23 20:45:27 -05:00
|
|
|
map: map,
|
2013-07-02 14:47:32 -05:00
|
|
|
path: path.clone(),
|
2013-01-17 10:55:28 -06:00
|
|
|
diag: diag,
|
|
|
|
};
|
2012-03-02 15:14:10 -06:00
|
|
|
|
|
|
|
// methods get added to the AST map when their impl is visited. Since we
|
|
|
|
// don't decode and instantiate the impl, but just the method, we have to
|
|
|
|
// add it to the table now:
|
2013-04-17 11:15:08 -05:00
|
|
|
match *ii {
|
2013-07-19 20:42:11 -05:00
|
|
|
ii_item(*) => {} // fallthrough
|
|
|
|
ii_foreign(i) => {
|
|
|
|
cx.map.insert(i.id, node_foreign_item(i,
|
|
|
|
AbiSet::Intrinsic(),
|
|
|
|
i.vis, // Wrong but OK
|
|
|
|
@path));
|
2012-02-22 09:57:23 -06:00
|
|
|
}
|
2013-07-19 20:42:11 -05:00
|
|
|
ii_method(impl_did, is_provided, m) => {
|
|
|
|
cx.map_method(impl_did, @path, m, is_provided);
|
2012-08-02 17:52:25 -05:00
|
|
|
}
|
2011-06-19 15:41:21 -05:00
|
|
|
}
|
2013-03-15 14:24:24 -05:00
|
|
|
|
2013-07-19 20:42:11 -05:00
|
|
|
// visit the item / method contents and add those to the map:
|
|
|
|
ii.accept((), cx as @Visitor<()>);
|
2012-08-17 16:09:20 -05:00
|
|
|
}
|
|
|
|
|
2013-07-27 03:25:59 -05:00
|
|
|
pub fn node_id_to_str(map: map, id: NodeId, itr: @ident_interner) -> ~str {
|
2013-02-05 21:41:45 -06:00
|
|
|
match map.find(&id) {
|
2012-08-20 14:23:37 -05:00
|
|
|
None => {
|
2012-08-22 19:24:52 -05:00
|
|
|
fmt!("unknown node (id=%d)", id)
|
2012-03-28 14:54:06 -05:00
|
|
|
}
|
2013-03-23 20:45:27 -05:00
|
|
|
Some(&node_item(item, path)) => {
|
2013-05-11 23:25:31 -05:00
|
|
|
let path_str = path_ident_to_str(path, item.ident, itr);
|
2012-08-09 11:59:50 -05:00
|
|
|
let item_str = match item.node {
|
2013-06-21 20:46:34 -05:00
|
|
|
item_static(*) => ~"static",
|
2012-08-09 11:59:50 -05:00
|
|
|
item_fn(*) => ~"fn",
|
|
|
|
item_mod(*) => ~"mod",
|
|
|
|
item_foreign_mod(*) => ~"foreign mod",
|
|
|
|
item_ty(*) => ~"ty",
|
|
|
|
item_enum(*) => ~"enum",
|
2012-12-10 15:47:54 -06:00
|
|
|
item_struct(*) => ~"struct",
|
2012-08-09 11:59:50 -05:00
|
|
|
item_trait(*) => ~"trait",
|
|
|
|
item_impl(*) => ~"impl",
|
|
|
|
item_mac(*) => ~"macro"
|
|
|
|
};
|
|
|
|
fmt!("%s %s (id=%?)", item_str, path_str, id)
|
2012-03-28 14:54:06 -05:00
|
|
|
}
|
2013-03-23 20:45:27 -05:00
|
|
|
Some(&node_foreign_item(item, abi, _, path)) => {
|
2012-08-22 19:24:52 -05:00
|
|
|
fmt!("foreign item %s with abi %? (id=%?)",
|
2013-05-11 23:25:31 -05:00
|
|
|
path_ident_to_str(path, item.ident, itr), abi, id)
|
2012-03-28 14:54:06 -05:00
|
|
|
}
|
2013-03-23 20:45:27 -05:00
|
|
|
Some(&node_method(m, _, path)) => {
|
2012-08-22 19:24:52 -05:00
|
|
|
fmt!("method %s in %s (id=%?)",
|
2013-06-12 12:02:55 -05:00
|
|
|
itr.get(m.ident.name), path_to_str(*path, itr), id)
|
2012-03-28 14:54:06 -05:00
|
|
|
}
|
2013-03-23 20:45:27 -05:00
|
|
|
Some(&node_trait_method(ref tm, _, path)) => {
|
2013-02-18 00:20:36 -06:00
|
|
|
let m = ast_util::trait_method_to_ty_method(&**tm);
|
2012-08-22 19:24:52 -05:00
|
|
|
fmt!("method %s in %s (id=%?)",
|
2013-06-12 12:02:55 -05:00
|
|
|
itr.get(m.ident.name), path_to_str(*path, itr), id)
|
2012-08-02 17:52:25 -05:00
|
|
|
}
|
2013-03-23 20:45:27 -05:00
|
|
|
Some(&node_variant(ref variant, _, path)) => {
|
2012-08-22 19:24:52 -05:00
|
|
|
fmt!("variant %s in %s (id=%?)",
|
2013-06-12 12:02:55 -05:00
|
|
|
itr.get(variant.node.name.name), path_to_str(*path, itr), id)
|
2012-03-28 14:54:06 -05:00
|
|
|
}
|
2013-03-23 20:45:27 -05:00
|
|
|
Some(&node_expr(expr)) => {
|
2012-08-22 19:24:52 -05:00
|
|
|
fmt!("expr %s (id=%?)", pprust::expr_to_str(expr, itr), id)
|
2012-03-28 14:54:06 -05:00
|
|
|
}
|
2013-03-15 14:24:24 -05:00
|
|
|
Some(&node_callee_scope(expr)) => {
|
|
|
|
fmt!("callee_scope %s (id=%?)", pprust::expr_to_str(expr, itr), id)
|
|
|
|
}
|
2013-03-23 20:45:27 -05:00
|
|
|
Some(&node_stmt(stmt)) => {
|
2012-08-22 19:24:52 -05:00
|
|
|
fmt!("stmt %s (id=%?)",
|
2013-04-17 11:15:08 -05:00
|
|
|
pprust::stmt_to_str(stmt, itr), id)
|
2012-08-17 16:09:20 -05:00
|
|
|
}
|
2013-03-15 14:24:24 -05:00
|
|
|
Some(&node_arg) => {
|
2012-08-22 19:24:52 -05:00
|
|
|
fmt!("arg (id=%?)", id)
|
2012-03-28 14:54:06 -05:00
|
|
|
}
|
2013-03-15 14:24:24 -05:00
|
|
|
Some(&node_local(ident)) => {
|
2013-06-12 12:02:55 -05:00
|
|
|
fmt!("local (id=%?, name=%s)", id, itr.get(ident.name))
|
2012-03-28 14:54:06 -05:00
|
|
|
}
|
2013-07-29 15:44:53 -05:00
|
|
|
Some(&node_block(ref block)) => {
|
|
|
|
fmt!("block %s (id=%?)", pprust::block_to_str(block, itr), id)
|
2012-03-28 14:54:06 -05:00
|
|
|
}
|
2013-07-29 15:44:53 -05:00
|
|
|
Some(&node_struct_ctor(_, _, path)) => {
|
|
|
|
fmt!("struct_ctor %s (id=%?)", path_to_str(*path, itr), id)
|
2012-10-24 16:36:00 -05:00
|
|
|
}
|
2012-03-28 14:54:06 -05:00
|
|
|
}
|
|
|
|
}
|
2012-11-30 13:24:16 -06:00
|
|
|
|
2013-07-27 03:25:59 -05:00
|
|
|
pub fn node_item_query<Result>(items: map, id: NodeId,
|
2013-03-07 16:38:38 -06:00
|
|
|
query: &fn(@item) -> Result,
|
2013-04-17 11:15:08 -05:00
|
|
|
error_msg: ~str) -> Result {
|
2013-02-05 21:41:45 -06:00
|
|
|
match items.find(&id) {
|
2013-03-23 20:45:27 -05:00
|
|
|
Some(&node_item(it, _)) => query(it),
|
2013-02-11 21:26:38 -06:00
|
|
|
_ => fail!(error_msg)
|
2012-11-30 13:24:16 -06:00
|
|
|
}
|
|
|
|
}
|