Delete rustdoc::doctree

Signed-off-by: hi-rustin <rustin.liu@gmail.com>

Author: 0xPoe

src/librustdoc/clean/mod.rs

@@ -36,8 +36,8 @@ use std::hash::Hash;
 use std::{mem, vec};
 
 use crate::core::{self, DocContext, ImplTraitParam};
-use crate::doctree;
 use crate::formats::item_type::ItemType;
+use crate::visit_ast::Module as DocModule;
 
 use utils::*;
 
@@ -54,7 +54,7 @@ crate trait Clean<T> {
     fn clean(&self, cx: &mut DocContext<'_>) -> T;
 }
 
-impl Clean<Item> for doctree::Module<'_> {
+impl Clean<Item> for DocModule<'_> {
     fn clean(&self, cx: &mut DocContext<'_>) -> Item {
         let mut items: Vec<Item> = vec![];
         items.extend(self.foreigns.iter().map(|x| x.clean(cx)));

src/librustdoc/doctree.rs

@@ -109,7 +109,6 @@ mod config;
 mod core;
 mod docfs;
 mod doctest;
-mod doctree;
 mod error;
 mod externalfiles;
 mod fold;

src/librustdoc/lib.rs

@@ -11,12 +11,35 @@ use rustc_middle::middle::privacy::AccessLevel;
 use rustc_middle::ty::TyCtxt;
 use rustc_span::def_id::{CRATE_DEF_ID, LOCAL_CRATE};
 use rustc_span::symbol::{kw, sym, Symbol};
+use rustc_span::Span;
 
 use std::mem;
 
 use crate::clean::{self, cfg::Cfg, AttributesExt, NestedAttributesExt};
 use crate::core;
-use crate::doctree::*;
+
+/// This module is used to store stuff from Rust's AST in a more convenient
+/// manner (and with prettier names) before cleaning.
+#[derive(Debug)]
+crate struct Module<'hir> {
+    crate name: Symbol,
+    crate where_inner: Span,
+    crate mods: Vec<Module<'hir>>,
+    crate id: hir::HirId,
+    // (item, renamed)
+    crate items: Vec<(&'hir hir::Item<'hir>, Option<Symbol>)>,
+    crate foreigns: Vec<(&'hir hir::ForeignItem<'hir>, Option<Symbol>)>,
+}
+
+impl Module<'hir> {
+    crate fn new(name: Symbol, id: hir::HirId, where_inner: Span) -> Module<'hir> {
+        Module { name, id, where_inner, mods: Vec::new(), items: Vec::new(), foreigns: Vec::new() }
+    }
+
+    crate fn where_outer(&self, tcx: TyCtxt<'_>) -> Span {
+        tcx.hir().span(self.id)
+    }
+}
 
 // FIXME: Should this be replaced with tcx.def_path_str?
 fn def_id_to_path(tcx: TyCtxt<'_>, did: DefId) -> Vec<String> {