Introduce an array of document elements.

src/blog_post/convert.rs

@@ -39,7 +39,12 @@ pub(crate) fn convert_blog_post_page_to_render_context<D: AsRef<Path>, F: AsRef<
         output_file.strip_prefix(output_directory)?,
     )?;
 
-    let ret = RenderBlogPostPage::new(global_settings, page.title.clone(), Some(link_to_blog_post));
+    let ret = RenderBlogPostPage::new(
+        global_settings,
+        page.title.clone(),
+        Some(link_to_blog_post),
+        Vec::new(),
+    );
     Ok(ret)
 }
 

src/types/blog_post_page.rs

@@ -1,6 +1,7 @@
 use serde::Serialize;
 
 use super::GlobalSettings;
+use super::RenderDocumentElement;
 
 #[derive(Debug, Serialize)]
 #[serde(tag = "type")]
@@ -12,6 +13,8 @@ pub(crate) struct RenderBlogPostPage {
     title: Option<String>,
 
     self_link: Option<String>,
+
+    children: Vec<RenderDocumentElement>,
 }
 
 impl RenderBlogPostPage {
@@ -19,11 +22,13 @@ impl RenderBlogPostPage {
         global_settings: GlobalSettings,
         title: Option<String>,
         self_link: Option<String>,
+        children: Vec<RenderDocumentElement>,
     ) -> RenderBlogPostPage {
         RenderBlogPostPage {
             global_settings,
             title,
             self_link,
+            children,
         }
     }
 }

src/types/document_element.rs

@@ -0,0 +1,11 @@
+use serde::Serialize;
+
+use super::RenderHeading;
+use super::RenderSection;
+
+#[derive(Debug, Serialize)]
+#[serde(untagged)]
+pub(crate) enum RenderDocumentElement {
+    Heading(RenderHeading),
+    Section(RenderSection),
+}

src/types/heading.rs

@@ -0,0 +1,6 @@
+use serde::Serialize;
+
+#[derive(Debug, Serialize)]
+#[serde(tag = "type")]
+#[serde(rename = "heading")]
+pub(crate) struct RenderHeading {}

src/types/mod.rs

@@ -1,5 +1,11 @@
 mod blog_post_page;
+mod document_element;
 mod global_settings;
+mod heading;
+mod section;
 
 pub(crate) use blog_post_page::RenderBlogPostPage;
+pub(crate) use document_element::RenderDocumentElement;
 pub(crate) use global_settings::GlobalSettings;
+pub(crate) use heading::RenderHeading;
+pub(crate) use section::RenderSection;

src/types/section.rs

@@ -0,0 +1,6 @@
+use serde::Serialize;
+
+#[derive(Debug, Serialize)]
+#[serde(tag = "type")]
+#[serde(rename = "section")]
+pub(crate) struct RenderSection {}