Rollup merge of rust-lang#79061 - jyn514:no-pub, r=GuillaumeGomez

Make all rustdoc functions and structs crate-private

This gives warnings when code is no longer used, which will be helpful when rust-lang#77820 and rust-lang#78082 land.

AFAIK no one is using this API.

r? ``@GuillaumeGomez``
cc ``@rust-lang/rustdoc``

Author: m-ou-se

src/librustdoc/clean/auto_trait.rs

@@ -20,21 +20,21 @@ struct RegionDeps<'tcx> {
     smaller: FxHashSet<RegionTarget<'tcx>>,
 }
 
-pub struct AutoTraitFinder<'a, 'tcx> {
-    pub cx: &'a core::DocContext<'tcx>,
-    pub f: auto_trait::AutoTraitFinder<'tcx>,
+crate struct AutoTraitFinder<'a, 'tcx> {
+    crate cx: &'a core::DocContext<'tcx>,
+    crate f: auto_trait::AutoTraitFinder<'tcx>,
 }
 
 impl<'a, 'tcx> AutoTraitFinder<'a, 'tcx> {
-    pub fn new(cx: &'a core::DocContext<'tcx>) -> Self {
+    crate fn new(cx: &'a core::DocContext<'tcx>) -> Self {
         let f = auto_trait::AutoTraitFinder::new(cx.tcx);
 
         AutoTraitFinder { cx, f }
     }
 
     // FIXME(eddyb) figure out a better way to pass information about
     // parametrization of `ty` than `param_env_def_id`.
-    pub fn get_auto_trait_impls(&self, ty: Ty<'tcx>, param_env_def_id: DefId) -> Vec<Item> {
+    crate fn get_auto_trait_impls(&self, ty: Ty<'tcx>, param_env_def_id: DefId) -> Vec<Item> {
         let param_env = self.cx.tcx.param_env(param_env_def_id);
 
         debug!("get_auto_trait_impls({:?})", ty);

src/librustdoc/clean/blanket_impl.rs

@@ -9,18 +9,18 @@ use rustc_span::DUMMY_SP;
 
 use super::*;
 
-pub struct BlanketImplFinder<'a, 'tcx> {
-    pub cx: &'a core::DocContext<'tcx>,
+crate struct BlanketImplFinder<'a, 'tcx> {
+    crate cx: &'a core::DocContext<'tcx>,
 }
 
 impl<'a, 'tcx> BlanketImplFinder<'a, 'tcx> {
-    pub fn new(cx: &'a core::DocContext<'tcx>) -> Self {
+    crate fn new(cx: &'a core::DocContext<'tcx>) -> Self {
         BlanketImplFinder { cx }
     }
 
     // FIXME(eddyb) figure out a better way to pass information about
     // parametrization of `ty` than `param_env_def_id`.
-    pub fn get_blanket_impls(&self, ty: Ty<'tcx>, param_env_def_id: DefId) -> Vec<Item> {
+    crate fn get_blanket_impls(&self, ty: Ty<'tcx>, param_env_def_id: DefId) -> Vec<Item> {
         let param_env = self.cx.tcx.param_env(param_env_def_id);
 
         debug!("get_blanket_impls({:?})", ty);

src/librustdoc/clean/cfg.rs

@@ -20,7 +20,7 @@ use crate::html::escape::Escape;
 mod tests;
 
 #[derive(Clone, Debug, PartialEq, Eq, Hash)]
-pub enum Cfg {
+crate enum Cfg {
     /// Accepts all configurations.
     True,
     /// Denies all configurations.
@@ -36,9 +36,9 @@ pub enum Cfg {
 }
 
 #[derive(PartialEq, Debug)]
-pub struct InvalidCfgError {
-    pub msg: &'static str,
-    pub span: Span,
+crate struct InvalidCfgError {
+    crate msg: &'static str,
+    crate span: Span,
 }
 
 impl Cfg {
@@ -59,7 +59,7 @@ impl Cfg {
     ///
     /// If the content is not properly formatted, it will return an error indicating what and where
     /// the error is.
-    pub fn parse(cfg: &MetaItem) -> Result<Cfg, InvalidCfgError> {
+    crate fn parse(cfg: &MetaItem) -> Result<Cfg, InvalidCfgError> {
         let name = match cfg.ident() {
             Some(ident) => ident.name,
             None => {
@@ -102,7 +102,7 @@ impl Cfg {
     ///
     /// Equivalent to `attr::cfg_matches`.
     // FIXME: Actually make use of `features`.
-    pub fn matches(&self, parse_sess: &ParseSess, features: Option<&Features>) -> bool {
+    crate fn matches(&self, parse_sess: &ParseSess, features: Option<&Features>) -> bool {
         match *self {
             Cfg::False => false,
             Cfg::True => true,

src/librustdoc/clean/mod.rs

@@ -3,11 +3,11 @@
 
 mod auto_trait;
 mod blanket_impl;
-pub mod cfg;
-pub mod inline;
+crate mod cfg;
+crate mod inline;
 mod simplify;
-pub mod types;
-pub mod utils;
+crate mod types;
+crate mod utils;
 
 use rustc_ast as ast;
 use rustc_attr as attr;
@@ -39,18 +39,18 @@ use crate::doctree;
 
 use utils::*;
 
-pub use utils::{get_auto_trait_and_blanket_impls, krate, register_res};
+crate use utils::{get_auto_trait_and_blanket_impls, krate, register_res};
 
-pub use self::types::FnRetTy::*;
-pub use self::types::ItemKind::*;
-pub use self::types::SelfTy::*;
-pub use self::types::Type::*;
-pub use self::types::Visibility::{Inherited, Public};
-pub use self::types::*;
+crate use self::types::FnRetTy::*;
+crate use self::types::ItemKind::*;
+crate use self::types::SelfTy::*;
+crate use self::types::Type::*;
+crate use self::types::Visibility::{Inherited, Public};
+crate use self::types::*;
 
 const FN_OUTPUT_NAME: &str = "Output";
 
-pub trait Clean<T> {
+crate trait Clean<T> {
     fn clean(&self, cx: &DocContext<'_>) -> T;
 }
 

src/librustdoc/clean/simplify.rs

@@ -21,7 +21,7 @@ use crate::clean::GenericArgs as PP;
 use crate::clean::WherePredicate as WP;
 use crate::core::DocContext;
 
-pub fn where_clauses(cx: &DocContext<'_>, clauses: Vec<WP>) -> Vec<WP> {
+crate fn where_clauses(cx: &DocContext<'_>, clauses: Vec<WP>) -> Vec<WP> {
     // First, partition the where clause into its separate components
     let mut params: BTreeMap<_, Vec<_>> = BTreeMap::new();
     let mut lifetimes = Vec::new();
@@ -74,7 +74,7 @@ pub fn where_clauses(cx: &DocContext<'_>, clauses: Vec<WP>) -> Vec<WP> {
     clauses
 }
 
-pub fn merge_bounds(
+crate fn merge_bounds(
     cx: &clean::DocContext<'_>,
     bounds: &mut Vec<clean::GenericBound>,
     trait_did: DefId,