Remove unnecessary edition parameter to renderer

Author: jyn514

src/librustdoc/formats/renderer.rs

@@ -1,5 +1,5 @@
 use rustc_middle::ty::TyCtxt;
-use rustc_span::{edition::Edition, Symbol};
+use rustc_span::Symbol;
 
 use crate::clean;
 use crate::config::RenderOptions;
@@ -23,7 +23,6 @@ crate trait FormatRenderer<'tcx>: Sized {
     fn init(
         krate: clean::Crate,
         options: RenderOptions,
-        edition: Edition,
         cache: Cache,
         tcx: TyCtxt<'tcx>,
     ) -> Result<(Self, clean::Crate), Error>;
@@ -51,15 +50,14 @@ crate fn run_format<'tcx, T: FormatRenderer<'tcx>>(
     krate: clean::Crate,
     options: RenderOptions,
     cache: Cache,
-    edition: Edition,
     tcx: TyCtxt<'tcx>,
 ) -> Result<(), Error> {
     let prof = &tcx.sess.prof;
 
     let emit_crate = options.should_emit_crate();
     let (mut format_renderer, krate) = prof
         .extra_verbose_generic_activity("create_renderer", T::descr())
-        .run(|| T::init(krate, options, edition, cache, tcx))?;
+        .run(|| T::init(krate, options, cache, tcx))?;
 
     if !emit_crate {
         return Ok(());

src/librustdoc/html/render/context.rs

@@ -346,7 +346,6 @@ impl<'tcx> FormatRenderer<'tcx> for Context<'tcx> {
     fn init(
         mut krate: clean::Crate,
         options: RenderOptions,
-        edition: Edition,
         mut cache: Cache,
         tcx: TyCtxt<'tcx>,
     ) -> Result<(Self, clean::Crate), Error> {
@@ -435,7 +434,7 @@ impl<'tcx> FormatRenderer<'tcx> for Context<'tcx> {
             resource_suffix,
             static_root_path,
             fs: DocFS::new(sender),
-            edition,
+            edition: tcx.sess.edition(),
             codes: ErrorCodes::from(unstable_features.is_nightly_build()),
             playground,
             all: RefCell::new(AllTypes::new()),

src/librustdoc/json/mod.rs

@@ -14,7 +14,6 @@ use std::rc::Rc;
 use rustc_data_structures::fx::FxHashMap;
 use rustc_middle::ty::TyCtxt;
 use rustc_session::Session;
-use rustc_span::edition::Edition;
 
 use rustdoc_json_types as types;
 
@@ -134,7 +133,6 @@ impl<'tcx> FormatRenderer<'tcx> for JsonRenderer<'tcx> {
     fn init(
         krate: clean::Crate,
         options: RenderOptions,
-        _edition: Edition,
         cache: Cache,
         tcx: TyCtxt<'tcx>,
     ) -> Result<(Self, clean::Crate), Error> {

src/librustdoc/lib.rs

@@ -656,10 +656,9 @@ fn run_renderer<'tcx, T: formats::FormatRenderer<'tcx>>(
     krate: clean::Crate,
     renderopts: config::RenderOptions,
     cache: formats::cache::Cache,
-    edition: rustc_span::edition::Edition,
     tcx: TyCtxt<'tcx>,
 ) -> MainResult {
-    match formats::run_format::<T>(krate, renderopts, cache, edition, tcx) {
+    match formats::run_format::<T>(krate, renderopts, cache, tcx) {
         Ok(_) => Ok(()),
         Err(e) => {
             let mut msg =
@@ -692,7 +691,6 @@ fn main_options(options: config::Options) -> MainResult {
 
     // need to move these items separately because we lose them by the time the closure is called,
     // but we can't create the Handler ahead of time because it's not Send
-    let edition = options.edition;
     let show_coverage = options.show_coverage;
     let run_check = options.run_check;
 
@@ -760,22 +758,10 @@ fn main_options(options: config::Options) -> MainResult {
                 info!("going to format");
                 match output_format {
                     config::OutputFormat::Html => sess.time("render_html", || {
-                        run_renderer::<html::render::Context<'_>>(
-                            krate,
-                            render_opts,
-                            cache,
-                            edition,
-                            tcx,
-                        )
+                        run_renderer::<html::render::Context<'_>>(krate, render_opts, cache, tcx)
                     }),
                     config::OutputFormat::Json => sess.time("render_json", || {
-                        run_renderer::<json::JsonRenderer<'_>>(
-                            krate,
-                            render_opts,
-                            cache,
-                            edition,
-                            tcx,
-                        )
+                        run_renderer::<json::JsonRenderer<'_>>(krate, render_opts, cache, tcx)
                     }),
                 }
             })