Move Error and RenderInfo out of html module

src/librustdoc/config.rs

@@ -4,6 +4,9 @@ use std::ffi::OsStr;
 use std::fmt;
 use std::path::PathBuf;
 
+use rustc_data_structures::fx::{FxHashMap, FxHashSet};
+use rustc_hir::def_id::DefId;
+use rustc_middle::middle::privacy::AccessLevels;
 use rustc_session::config::{self, parse_crate_types_from_list, parse_externs, CrateType};
 use rustc_session::config::{
     build_codegen_options, build_debugging_options, get_cmd_lint_options, host_triple,
@@ -249,6 +252,20 @@ pub struct RenderOptions {
     pub document_hidden: bool,
 }
 
+/// Temporary storage for data obtained during `RustdocVisitor::clean()`.
+/// Later on moved into `CACHE_KEY`.
+#[derive(Default)]
+pub struct RenderInfo {
+    pub inlined: FxHashSet<DefId>,
+    pub external_paths: crate::core::ExternalPaths,
+    pub exact_paths: FxHashMap<DefId, Vec<String>>,
+    pub access_levels: AccessLevels<DefId>,
+    pub deref_trait_did: Option<DefId>,
+    pub deref_mut_trait_did: Option<DefId>,
+    pub owned_box_did: Option<DefId>,
+    pub output_format: Option<OutputFormat>,
+}
+
 impl Options {
     /// Parses the given command-line for options. If an error message or other early-return has
     /// been printed, returns `Err` with the exit code.

src/librustdoc/core.rs

@@ -32,8 +32,8 @@ use std::rc::Rc;
 
 use crate::clean;
 use crate::clean::{AttributesExt, MAX_DEF_ID};
+use crate::config::RenderInfo;
 use crate::config::{Options as RustdocOptions, RenderOptions};
-use crate::html::render::RenderInfo;
 use crate::passes::{self, Condition::*, ConditionalPass};
 
 pub use rustc_session::config::{CodegenOptions, DebuggingOptions, Input, Options};

src/librustdoc/error.rs

@@ -0,0 +1,56 @@
+use std::error;
+use std::fmt::{self, Formatter};
+use std::path::{Path, PathBuf};
+
+use crate::docfs::PathError;
+
+#[derive(Debug)]
+pub struct Error {
+    pub file: PathBuf,
+    pub error: String,
+}
+
+impl error::Error for Error {}
+
+impl std::fmt::Display for Error {
+    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
+        let file = self.file.display().to_string();
+        if file.is_empty() {
+            write!(f, "{}", self.error)
+        } else {
+            write!(f, "\"{}\": {}", self.file.display(), self.error)
+        }
+    }
+}
+
+impl PathError for Error {
+    fn new<S, P: AsRef<Path>>(e: S, path: P) -> Error
+    where
+        S: ToString + Sized,
+    {
+        Error { file: path.as_ref().to_path_buf(), error: e.to_string() }
+    }
+}
+
+#[macro_export]
+macro_rules! try_none {
+    ($e:expr, $file:expr) => {{
+        use std::io;
+        match $e {
+            Some(e) => e,
+            None => {
+                return Err(Error::new(io::Error::new(io::ErrorKind::Other, "not found"), $file));
+            }
+        }
+    }};
+}
+
+#[macro_export]
+macro_rules! try_err {
+    ($e:expr, $file:expr) => {{
+        match $e {
+            Ok(e) => e,
+            Err(e) => return Err(Error::new(e, $file)),
+        }
+    }};
+}

src/librustdoc/html/render.rs

@@ -30,9 +30,8 @@ use std::cell::{Cell, RefCell};
 use std::cmp::Ordering;
 use std::collections::{BTreeMap, VecDeque};
 use std::default::Default;
-use std::error;
 use std::ffi::OsStr;
-use std::fmt::{self, Formatter, Write};
+use std::fmt::{self, Write};
 use std::fs::{self, File};
 use std::io::prelude::*;
 use std::io::{self, BufReader};
@@ -50,7 +49,6 @@ use rustc_feature::UnstableFeatures;
 use rustc_hir as hir;
 use rustc_hir::def_id::{DefId, LOCAL_CRATE};
 use rustc_hir::Mutability;
-use rustc_middle::middle::privacy::AccessLevels;
 use rustc_middle::middle::stability;
 use rustc_span::edition::Edition;
 use rustc_span::hygiene::MacroKind;
@@ -60,9 +58,11 @@ use serde::ser::SerializeSeq;
 use serde::{Serialize, Serializer};
 
 use crate::clean::{self, AttributesExt, Deprecation, GetDefId, SelfTy, TypeKind};
-use crate::config::{OutputFormat, RenderOptions};
+use crate::config::RenderInfo;
+use crate::config::RenderOptions;
 use crate::docfs::{DocFS, ErrorStorage, PathError};
 use crate::doctree;
+use crate::error::Error;
 use crate::html::escape::Escape;
 use crate::html::format::fmt_impl_for_trait_page;
 use crate::html::format::Function;
@@ -90,55 +90,6 @@ crate fn ensure_trailing_slash(v: &str) -> impl fmt::Display + '_ {
     })
 }
 
-#[derive(Debug)]
-pub struct Error {
-    pub file: PathBuf,
-    pub error: String,
-}
-
-impl error::Error for Error {}
-
-impl std::fmt::Display for Error {
-    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
-        let file = self.file.display().to_string();
-        if file.is_empty() {
-            write!(f, "{}", self.error)
-        } else {
-            write!(f, "\"{}\": {}", self.file.display(), self.error)
-        }
-    }
-}
-
-impl PathError for Error {
-    fn new<S, P: AsRef<Path>>(e: S, path: P) -> Error
-    where
-        S: ToString + Sized,
-    {
-        Error { file: path.as_ref().to_path_buf(), error: e.to_string() }
-    }
-}
-
-macro_rules! try_none {
-    ($e:expr, $file:expr) => {{
-        use std::io;
-        match $e {
-            Some(e) => e,
-            None => {
-                return Err(Error::new(io::Error::new(io::ErrorKind::Other, "not found"), $file));
-            }
-        }
-    }};
-}
-
-macro_rules! try_err {
-    ($e:expr, $file:expr) => {{
-        match $e {
-            Ok(e) => e,
-            Err(e) => return Err(Error::new(e, $file)),
-        }
-    }};
-}
-
 /// Major driving force in all rustdoc rendering. This contains information
 /// about where in the tree-like hierarchy rendering is occurring and controls
 /// how the current page is being rendered.
@@ -260,20 +211,6 @@ impl Impl {
     }
 }
 
-/// Temporary storage for data obtained during `RustdocVisitor::clean()`.
-/// Later on moved into `CACHE_KEY`.
-#[derive(Default)]
-pub struct RenderInfo {
-    pub inlined: FxHashSet<DefId>,
-    pub external_paths: crate::core::ExternalPaths,
-    pub exact_paths: FxHashMap<DefId, Vec<String>>,
-    pub access_levels: AccessLevels<DefId>,
-    pub deref_trait_did: Option<DefId>,
-    pub deref_mut_trait_did: Option<DefId>,
-    pub owned_box_did: Option<DefId>,
-    pub output_format: Option<OutputFormat>,
-}
-
 // Helper structs for rendering items/sidebars and carrying along contextual
 // information
 

src/librustdoc/html/render/cache.rs

@@ -12,7 +12,8 @@ use std::path::{Path, PathBuf};
 use serde::Serialize;
 
 use super::{plain_summary_line, shorten, Impl, IndexItem, IndexItemFunctionType, ItemType};
-use super::{Generic, RenderInfo, RenderType, TypeWithKind};
+use super::{Generic, RenderType, TypeWithKind};
+use crate::config::RenderInfo;
 
 /// Indicates where an external crate can be found.
 pub enum ExternalLocation {

src/librustdoc/html/sources.rs

@@ -1,10 +1,11 @@
 use crate::clean;
 use crate::docfs::PathError;
+use crate::error::Error;
 use crate::fold::DocFolder;
 use crate::html::format::Buffer;
 use crate::html::highlight;
 use crate::html::layout;
-use crate::html::render::{Error, SharedContext, BASIC_KEYWORDS};
+use crate::html::render::{SharedContext, BASIC_KEYWORDS};
 use rustc_hir::def_id::LOCAL_CRATE;
 use rustc_span::source_map::FileName;
 use std::ffi::OsStr;

src/librustdoc/lib.rs

@@ -63,6 +63,8 @@ mod config;
 mod core;
 mod docfs;
 mod doctree;
+#[macro_use]
+mod error;
 mod fold;
 pub mod html {
     crate mod escape;
@@ -85,7 +87,7 @@ mod visit_lib;
 
 struct Output {
     krate: clean::Crate,
-    renderinfo: html::render::RenderInfo,
+    renderinfo: config::RenderInfo,
     renderopts: config::RenderOptions,
 }