Create a render ast node type.

src/context/footnote_definition.rs

@@ -5,6 +5,10 @@ use serde::Serialize;
 use crate::config::Config;
 use crate::error::CustomError;
 use crate::intermediate::IFootnoteDefinition;
+use crate::intermediate::IRealFootnoteDefinition;
+
+use super::ast_node::IntoRenderAstNode;
+use super::ast_node::RenderAstNode;
 
 #[derive(Debug, Serialize)]
 #[serde(tag = "type")]
@@ -21,3 +25,35 @@ impl RenderFootnoteDefinition {
         Ok(RenderFootnoteDefinition {})
     }
 }
+
+#[derive(Debug, Serialize)]
+#[serde(tag = "type")]
+#[serde(rename = "footnote_reference")]
+pub(crate) struct RenderRealFootnoteDefinition {
+    definition_id: String,
+    reference_link: String,
+    contents: Vec<RenderAstNode>,
+}
+
+impl RenderRealFootnoteDefinition {
+    pub(crate) fn new(
+        config: &Config,
+        output_directory: &Path,
+        output_file: &Path,
+        original: &IRealFootnoteDefinition,
+    ) -> Result<RenderRealFootnoteDefinition, CustomError> {
+        let contents = {
+            let mut ret = Vec::new();
+            for obj in original.contents.iter() {
+                ret.push(obj.into_render_ast_node(config, output_directory, output_file)?);
+            }
+            ret
+        };
+
+        Ok(RenderRealFootnoteDefinition {
+            definition_id: original.get_definition_id(),
+            reference_link: format!("#{}", original.get_reference_id()),
+            contents,
+        })
+    }
+}