split off a separate RenderOptions struct

src/librustdoc/config.rs

@@ -32,14 +32,13 @@ use opts;
 use passes::{self, DefaultPassOption};
 use theme;
 
+/// Configuration options for rustdoc.
 #[derive(Clone)]
 pub struct Options {
     // Basic options / Options passed directly to rustc
 
     /// The crate root or Markdown file to load.
     pub input: PathBuf,
-    /// Output directory to generate docs into. Defaults to `doc`.
-    pub output: PathBuf,
     /// The name of the crate being documented.
     pub crate_name: Option<String>,
     /// How to format errors and warnings.
@@ -91,20 +90,29 @@ pub struct Options {
     /// Whether to display warnings during doc generation or while gathering doctests. By default,
     /// all non-rustdoc-specific lints are allowed when generating docs.
     pub display_warnings: bool,
-    /// A pre-populated `IdMap` with the default headings and any headings added by Markdown files
-    /// processed by `external_html`.
-    pub id_map: IdMap,
 
     // Options that alter generated documentation pages
 
+    /// Crate version to note on the sidebar of generated docs.
+    pub crate_version: Option<String>,
+    /// Collected options specific to outputting final pages.
+    pub render_options: RenderOptions,
+}
+
+/// Configuration options for the HTML page-creation process.
+#[derive(Clone)]
+pub struct RenderOptions {
+    /// Output directory to generate docs into. Defaults to `doc`.
+    pub output: PathBuf,
     /// External files to insert into generated pages.
     pub external_html: ExternalHtml,
+    /// A pre-populated `IdMap` with the default headings and any headings added by Markdown files
+    /// processed by `external_html`.
+    pub id_map: IdMap,
     /// If present, playground URL to use in the "Run" button added to code samples.
     ///
     /// Be aware: This option can come both from the CLI and from crate attributes!
     pub playground_url: Option<String>,
-    /// Crate version to note on the sidebar of generated docs.
-    pub crate_version: Option<String>,
     /// Whether to sort modules alphabetically on a module page instead of using declaration order.
     /// `true` by default.
     ///
@@ -390,7 +398,6 @@ impl Options {
 
         Ok(Options {
             input,
-            output,
             crate_name,
             error_format,
             libs,
@@ -410,21 +417,24 @@ impl Options {
             default_passes,
             manual_passes,
             display_warnings,
-            id_map,
-            external_html,
-            playground_url,
             crate_version,
-            sort_modules_alphabetically,
+            render_options: RenderOptions {
-            themes,
+                output,
-            extension_css,
+                external_html,
-            extern_html_root_urls,
+                id_map,
-            resource_suffix,
+                playground_url,
-            enable_minification,
+                sort_modules_alphabetically,
-            enable_index_page,
+                themes,
-            index_page,
+                extension_css,
-            markdown_no_toc,
+                extern_html_root_urls,
-            markdown_css,
+                resource_suffix,
-            markdown_playground_url,
+                enable_minification,
+                enable_index_page,
+                index_page,
+                markdown_no_toc,
+                markdown_css,
+                markdown_playground_url,
+            }
         })
     }
 

src/librustdoc/html/render.rs

@@ -509,7 +509,7 @@ pub fn run(mut krate: clean::Crate,
            id_map: IdMap,
            enable_index_page: bool,
            index_page: Option<PathBuf>,
-           options: config::Options,
+           options: config::RenderOptions,
            diag: &errors::Handler,
 ) -> Result<(), Error> {
     let src_root = match krate.src {
@@ -760,7 +760,7 @@ fn write_shared(
     cache: &Cache,
     search_index: String,
     enable_minification: bool,
-    options: &config::Options,
+    options: &config::RenderOptions,
     diag: &errors::Handler,
 ) -> Result<(), Error> {
     // Write out the shared files. Note that these are shared among all rustdoc

src/librustdoc/lib.rs

@@ -90,6 +90,7 @@ mod theme;
 struct Output {
     krate: clean::Crate,
     renderinfo: html::render::RenderInfo,
+    renderopts: config::RenderOptions,
     passes: Vec<String>,
 }
 
@@ -381,36 +382,38 @@ fn main_args(args: &[String]) -> isize {
                              options.display_warnings, options.linker, options.edition,
                              options.codegen_options)
         }
-        (false, true) => return markdown::render(&options.input, options.output,
+        (false, true) => return markdown::render(&options.input, options.render_options.output,
-                                                 &options.markdown_css,
+                                                 &options.render_options.markdown_css,
-                                                 options.markdown_playground_url
+                                                 options.render_options.markdown_playground_url
-                                                    .or(options.playground_url),
+                                                    .or(options.render_options.playground_url),
-                                                 &options.external_html,
+                                                 &options.render_options.external_html,
-                                                 !options.markdown_no_toc, &diag),
+                                                 !options.render_options.markdown_no_toc, &diag),
         (false, false) => {}
     }
 
-    //TODO: split render-time options into their own struct so i don't have to clone here
+    // need to move these items separately because we lose them by the time the closure is called,
-    rust_input(options.clone(), move |out| {
+    // but we can't crates the Handler ahead of time because it's not Send
-        let Output { krate, passes, renderinfo } = out;
+    let diag_opts = (options.error_format,
+                     options.debugging_options.treat_err_as_bug,
+                     options.debugging_options.ui_testing);
+    rust_input(options, move |out| {
+        let Output { krate, passes, renderinfo, renderopts } = out;
         info!("going to format");
-        let diag = core::new_handler(options.error_format,
+        let (error_format, treat_err_as_bug, ui_testing) = diag_opts;
-                                     None,
+        let diag = core::new_handler(error_format, None, treat_err_as_bug, ui_testing);
-                                     options.debugging_options.treat_err_as_bug,
+        let html_opts = renderopts.clone();
-                                     options.debugging_options.ui_testing);
+        html::render::run(krate, renderopts.extern_html_root_urls, &renderopts.external_html,
-        let html_opts = options.clone();
+                          renderopts.playground_url,
-        html::render::run(krate, options.extern_html_root_urls, &options.external_html, options.playground_url,
+                          renderopts.output,
-                          options.output,
+                          renderopts.resource_suffix,
-                          options.resource_suffix,
                           passes.into_iter().collect(),
-                          options.extension_css,
+                          renderopts.extension_css,
                           renderinfo,
-                          options.sort_modules_alphabetically,
+                          renderopts.sort_modules_alphabetically,
-                          options.themes,
+                          renderopts.themes,
-                          options.enable_minification, options.id_map,
+                          renderopts.enable_minification, renderopts.id_map,
-                          options.enable_index_page, options.index_page,
+                          renderopts.enable_index_page, renderopts.index_page,
-                          html_opts,
+                          html_opts, &diag)
-                          &diag)
             .expect("failed to generate documentation");
         0
     })
@@ -482,7 +485,12 @@ where R: 'static + Send,
             krate = pass(krate);
         }
 
-        tx.send(f(Output { krate: krate, renderinfo: renderinfo, passes: passes })).unwrap();
+        tx.send(f(Output {
+            krate: krate,
+            renderinfo: renderinfo,
+            renderopts: options.render_options,
+            passes: passes
+        })).unwrap();
     }));
 
     match result {