Class: Json::Merge::Provider

Inherits:
Object
  • Object
show all
Defined in:
lib/json/merge/provider.rb,
sig/json/merge.rbs

Overview

Portable JSON-family provider for Ast::Merge dispatch. rubocop:disable Metrics/AbcSize, Metrics/ClassLength, Metrics/CyclomaticComplexity, Metrics/MethodLength, Metrics/ParameterLists, Metrics/PerceivedComplexity -- provider operations keep request, rendering, and result-envelope logic together

Constant Summary collapse

DIALECTS = 
%i[json jsonc json5].freeze
DEFAULT_PROFILE = 
:source_preserving

Instance Method Summary collapse

Instance Method Details

#analyze(request) ⇒ Ast::Merge::provider_result

Parameters:

  • request (Ast::Merge::provider_request)

Returns:

  • (Ast::Merge::provider_result) 


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# File 'lib/json/merge/provider.rb', line 30

def analyze(request)
  dialect = dialect_for(request)
  parsed = Json::Merge.parse_json(request.fetch(:source), dialect, backend: request[:backend])
  return parse_failure(:analyze, :source, parsed, request) unless parsed[:ok]

  result(
    :analyze,
    request,
    analysis: parsed.fetch(:analysis),
    verification: { source_parsed: true }
  )
end

#capabilities ⇒ Ast::Merge::provider_capabilities

Returns:

  • (Ast::Merge::provider_capabilities) 


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# File 'lib/json/merge/provider.rb', line 19

def capabilities
  {
    operations: Ast::Merge::ProviderContract::OPERATIONS,
    dialects: DIALECTS,
    backends: [Json::Merge::TREE_SITTER_BACKEND.id.to_sym],
    profiles: [DEFAULT_PROFILE],
    role: :workflow,
    source_preservation: %i[exact_source family_synthesis line_provenance reparse]
  }.freeze
end

#diff2(request) ⇒ Ast::Merge::provider_result

Parameters:

  • request (Ast::Merge::provider_request)

Returns:

  • (Ast::Merge::provider_result) 


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# File 'lib/json/merge/provider.rb', line 43

def diff2(request)
  before = parse_role!(:diff2, request, :before)
  return before if provider_failure?(before)

  after = parse_role!(:diff2, request, :after)
  return after if provider_failure?(after)

  changes = diff_values(before, after, path: '')
  result(
    :diff2,
    request,
    diff: { changes: changes, before: before, after: after },
    changes: changes,
    verification: { before_parsed: true, after_parsed: true }
  )
end

#family ⇒ String

Returns:

  • (String) 


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# File 'lib/json/merge/provider.rb', line 15

def family
  'json'
end

#merge2(request) ⇒ Ast::Merge::provider_result

Parameters:

  • request (Ast::Merge::provider_request)

Returns:

  • (Ast::Merge::provider_result) 


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# File 'lib/json/merge/provider.rb', line 60

def merge2(request)
  dialect = dialect_for(request)
  merged = Json::Merge.merge_json(
    request.fetch(:incoming_source),
    request.fetch(:current_source),
    dialect,
    backend: request[:backend]
  )
  return merge2_failure(merged, request) unless merged[:ok]

  output = merged.fetch(:output)
  verified = parse_output(output, request)
  result(
    :merge2,
    request,
    output: output,
    changes: [],
    render_report: { strategy: :json_smart_merger, synthesis: :family_emission },
    verification: { output_reparsed: true, semantic_value: verified }
  )
rescue Json::Merge::ParseError => e
  failure(
    :merge2,
    request,
    category: :render_failure,
    message: "JSON family emitter produced invalid output: #{e.message}"
  )
end

#merge3(request) ⇒ Ast::Merge::provider_result

Parameters:

  • request (Ast::Merge::provider_request)

Returns:

  • (Ast::Merge::provider_result) 


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# File 'lib/json/merge/provider.rb', line 89

def merge3(request)
  values = parse_merge3_roles(request)
  return values if provider_failure?(values)

  decision = ThreeWayDecision.new.call(**values)
  rendered = render_merge3(decision, request, values)
  return rendered if provider_failure?(rendered)

  result(
    :merge3,
    request,
    **rendered,
    changes: decision.changes,
    conflicts: decision.conflicts,
    verification: rendered.fetch(:verification).merge(base_participated: true)
  )
end

#provider_id ⇒ String

Returns:

  • (String) 


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# File 'lib/json/merge/provider.rb', line 11

def provider_id
  'ruby.json'
end