Add module/function docs to renderer

1 files changed, 22 insertions, 0 deletions

diff --git a/src/renderer.rs b/src/renderer.rs
index 90162e6..1db1215 100644
--- a/src/renderer.rs
+++ b/src/renderer.rs
@@ -1,3 +1,8 @@
+//! Markdown rendering primitives.
+//!
+//! This module renders project headers and normalized file paths into Markdown.
+//! Rendering behavior is controlled by [`RenderOptions`].
+
 use std::{
     fs::File,
     io::{Read, Write},
@@ -12,8 +17,10 @@ use crate::{
     },
 };
 
+/// Default maximum file size, in bytes. Larger files are not included in Markdown output.
 pub const DEFAULT_MAX_FILE_SIZE: u64 = 1_000_000;
 
+/// Renders files and project metadata as Markdown.
 #[derive(Debug)]
 pub struct Renderer<W: Write> {
     output: W,
@@ -24,10 +31,12 @@ pub struct Renderer<W: Write> {
 }
 
 impl<W: Write> Renderer<W> {
+    /// Creates a renderer with default [`RenderOptions`].
     pub fn new_with_defaults(output: W) -> Self {
         Self::new(output, RenderOptions::default())
     }
 
+    /// Creates a renderer with explicit rendering options.
     pub fn new(output: W, config: RenderOptions) -> Self {
         Self {
             output,
@@ -38,30 +47,39 @@ impl<W: Write> Renderer<W> {
         }
     }
 
+    /// Sets the maximum file size, in bytes, that will be rendered.
     pub fn with_max_file_size(mut self, max_file_size: u64) -> Self {
         self.max_file_size = max_file_size;
         self
     }
 
+    /// Sets the logger used for warnings and informational messages.
     pub fn with_logger(mut self, logger: Logger) -> Self {
         self.logger = logger;
         self
     }
 
+    /// Controls whether skipped binary files are represented by placeholders.
     pub fn with_binary_file_placeholder(mut self, placeholder_for_binary_files: bool) -> Self {
         self.placeholder_for_binary_files = placeholder_for_binary_files;
         self
     }
 
+    /// Controls whether skipped large files are represented by placeholders.
     pub fn with_large_file_placeholder(mut self, placeholder_for_large_files: bool) -> Self {
         self.placeholder_for_large_files = placeholder_for_large_files;
         self
     }
 
+    /// Renders the top-level project heading.
     pub fn render_header(&mut self, project_title: &str) -> std::io::Result<()> {
         writeln!(self.output, "# {}", project_title)
     }
 
+    /// Renders a normalized path.
+    ///
+    /// Text files are rendered as fenced Markdown code blocks. Large files and binary files are
+    /// skipped unless their corresponding placeholder options are enabled.
     pub fn render_path(&mut self, normalized_path: &NormalizedPath) -> std::io::Result<()> {
         let metadata = std::fs::metadata(&normalized_path.absolute)?;
         if metadata.len() > self.max_file_size {
@@ -137,10 +155,14 @@ impl<W: Write> Renderer<W> {
     }
 }
 
+/// Options controlling how files are rendered.
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub struct RenderOptions {
+    /// Maximum file size, in bytes, to include in Markdown output.
     pub max_file_size: u64,
+    /// Whether skipped binary files should be shown as `[BINARY FILE]`.
     pub placeholder_for_binary_files: bool,
+    /// Whether skipped large files should be shown as `[FILE TOO LARGE]`.
     pub placeholder_for_large_files: bool,
 }