class AssetPipeline::Stimulus::StimulusRenderer

• AssetPipeline::Stimulus::StimulusRenderer
• AssetPipeline::ScriptRenderer
• Reference
• Object

Overview

The StimulusRenderer extends ScriptRenderer to provide Stimulus-specific functionality. It automatically detects Stimulus controller imports, generates proper controller registration, and handles Stimulus application initialization.

This renderer can parse custom JavaScript blocks to:

• Detect Stimulus.register("name", ControllerClass) patterns
• Identify controller import statements
• Generate proper Stimulus application setup
• Handle Stimulus-specific initialization code

Performance optimizations:

• Caches controller detection results to avoid re-parsing import maps
• Caches generated script content for identical configurations
• Memoizes controller-to-stimulus-id conversions

Defined in:

Constructors

• .new(import_map : ImportMap, custom_javascript_block : String = "", stimulus_application_name : String = "application")

  Initialize the StimulusRenderer with an import map, custom JavaScript block, and application name

Instance Method Summary

• #cache_efficiency : Hash(String, Float64)

  Returns the current cache hit ratio for performance monitoring

• #cache_stats : Hash(String, Int32)

  Performance monitoring methods Returns cache statistics for monitoring performance

• #clear_caches

  Clears all performance caches (useful for testing or memory management)

• #generate_stimulus_script_content : String

  Generates the complete Stimulus script content without wrapping tags

• #render_stimulus_initialization_script : String

  Renders a complete Stimulus initialization script

Constructor Detail

renderer = StimulusRenderer.new(import_map, "Stimulus.register('hello', HelloController);", "application")

Instance Method Detail