Module: Coradoc::Mirror::FrontmatterTreeToHash

Defined in:
lib/coradoc/mirror/frontmatter_tree_to_hash.rb

Overview

Walks a typed FrontmatterEntry / FrontmatterValue tree (the Mirror representation of CoreModel::FrontmatterBlock#data) and rebuilds the flat Ruby Hash. Inverse of Handlers::Frontmatter.build_value.

Single source of truth for tree → Hash translation. Consumed by:

- ReverseBuilder::Frontmatter (mirror → CoreModel round-trip)
- FrontmatterQuery (mirror doc → flat Hash for downstream readers)

Extracted from ReverseBuilder so the read-path is shared (DRY/MECE) and FrontmatterQuery does not depend on the reverse-builder constant.

Class Method Summary collapse

Class Method Details

.to_hash(entries) ⇒ Object 



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# File 'lib/coradoc/mirror/frontmatter_tree_to_hash.rb', line 18

def to_hash(entries)
  entries.each_with_object({}) do |entry, result|
    result[entry.key] = unwrap_value(entry.value)
  end
end

.unwrap_value(value) ⇒ Object 



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# File 'lib/coradoc/mirror/frontmatter_tree_to_hash.rb', line 24

def unwrap_value(value)
  case value.value_type
  when 'map'     then to_hash(value.entries || [])
  when 'array'   then (value.items || []).map { |v| unwrap_value(v) }
  when 'integer'   then value.integer_value
  when 'float'     then value.float_value
  when 'boolean'   then value.boolean_value
  when 'date'      then value.date_value
  when 'datetime'  then value.datetime_value
  when 'symbol'    then value.symbol_value&.to_sym
  when 'nil'       then nil
  else value.string_value
  end
end