Class: Dhall::Resolvers::Standard

Inherits:
Object
  • Object
show all
Defined in:
lib/dhall/resolve.rb

Direct Known Subclasses

Default, LocalOnly

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path_reader: ReadPathSources, http_reader: StandardReadHttpSources, https_reader: http_reader, environment_reader: ReadEnvironmentSources, cache: StandardFileCache.new, max_depth: Float::INFINITY) ⇒ Standard

Returns a new instance of Standard.



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# File 'lib/dhall/resolve.rb', line 257

def initialize(
  path_reader: ReadPathSources,
  http_reader: StandardReadHttpSources,
  https_reader: http_reader,
  environment_reader: ReadEnvironmentSources,
  cache: StandardFileCache.new,
  max_depth: Float::INFINITY
)
  @path_resolutions = ResolutionSet.new(path_reader, max_depth: max_depth)
  @http_resolutions = ResolutionSet.new(http_reader, max_depth: max_depth)
  @https_resolutions = ResolutionSet.new(https_reader, max_depth: max_depth)
  @env_resolutions = ResolutionSet.new(
    environment_reader, max_depth: max_depth
  )
  @deadline = Util::NoDeadline.new
  @cache = cache
end

Instance Attribute Details

#deadline ⇒ Object (readonly)

Returns the value of attribute deadline.



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# File 'lib/dhall/resolve.rb', line 255

def deadline
  @deadline
end

Instance Method Details

#cache_fetch(key, &fallback) ⇒ Object 



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# File 'lib/dhall/resolve.rb', line 283

def cache_fetch(key, &fallback)
  @cache.fetch(key) do
    Promise.resolve(nil).then(&fallback)
  end
end

#child(parent_source) ⇒ Object 



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# File 'lib/dhall/resolve.rb', line 337

def child(parent_source)
  dup.tap do |c|
    c.instance_eval do
      @path_resolutions = @path_resolutions.child(parent_source)
      @env_resolutions = @env_resolutions.child(parent_source)
      @http_resolutions = @http_resolutions.child(parent_source)
      @https_resolutions = @https_resolutions.child(parent_source)
    end
  end
end

#finish! ⇒ Object 



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# File 'lib/dhall/resolve.rb', line 325

def finish!
  [
    @path_resolutions,
    @env_resolutions,
    @http_resolutions,
    @https_resolutions
  ].each do |rset|
    Util.match_result_promises(*rset.resolutions, &rset.reader)
  end
  freeze
end

#resolve_environment(env_source) ⇒ Object 



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# File 'lib/dhall/resolve.rb', line 295

def resolve_environment(env_source)
  @env_resolutions.register(
    SourceWithDeadline.new(env_source, @deadline)
  )
end

#resolve_http(http_source) ⇒ Object 



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# File 'lib/dhall/resolve.rb', line 301

def resolve_http(http_source)
  http_source.headers.resolve(
    resolver:    self,
    relative_to: Dhall::Import::RelativePath.new
  ).then do |headers|
    source = http_source.with(headers: headers.normalize)
    @http_resolutions.register(
      SourceWithDeadline.new(source, @deadline)
    )
  end
end

#resolve_https(https_source) ⇒ Object 



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# File 'lib/dhall/resolve.rb', line 313

def resolve_https(https_source)
  https_source.headers.resolve(
    resolver:    self,
    relative_to: Dhall::Import::RelativePath.new
  ).then do |headers|
    source = https_source.with(headers: headers.normalize)
    @https_resolutions.register(
      SourceWithDeadline.new(source, @deadline)
    )
  end
end

#resolve_path(path_source) ⇒ Object 



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# File 'lib/dhall/resolve.rb', line 289

def resolve_path(path_source)
  @path_resolutions.register(
    SourceWithDeadline.new(path_source, @deadline)
  )
end

#with_deadline(deadline) ⇒ Object 



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# File 'lib/dhall/resolve.rb', line 275

def with_deadline(deadline)
  dup.tap do |c|
    c.instance_eval do
      @deadline = deadline
    end
  end
end