Module: Psych::Merge::DebugLogger

Extended by:
Ast::Merge::DebugLogger
Defined in:
lib/psych/merge/debug_logger.rb

Overview

Debug logging utility for Psych::Merge.
Extends the base Ast::Merge::DebugLogger with Psych-specific configuration.

Examples:

Enable debug logging

ENV['PSYCH_MERGE_DEBUG'] = '1'
DebugLogger.debug("Processing node", {type: "mapping", line: 5})

Disable debug logging (default)

DebugLogger.debug("This won't be printed", {})

Class Method Summary collapse

Class Method Details

.log_node(node, label: "Node") ⇒ Object

Override log_node to handle Psych-specific node types.

Parameters:

  • node (Object) —

    Node to log information about

  • label (String) (defaults to: "Node") —

    Label for the node



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# File 'lib/psych/merge/debug_logger.rb', line 26

def log_node(node, label: "Node")
  return unless enabled?

  info = case node
  when Psych::Merge::FreezeNode
    {type: "FreezeNode", lines: "#{node.start_line}..#{node.end_line}"}
  when Psych::Merge::MappingEntry
    {type: "MappingEntry", key: node.key_name, lines: "#{node.start_line}..#{node.end_line}"}
  when Psych::Merge::NodeWrapper
    {type: node.node.class.name.split("::").last, lines: "#{node.start_line}..#{node.end_line}"}
  else
    extract_node_info(node)
  end

  debug(label, info)
end