Module: TypedOperation::Instrumentation::Explainable

Defined in:
lib/typed_operation/instrumentation.rb

Overview

Class methods added to operations for the ‘explain` entry point.

Instance Method Summary collapse

Instance Method Details

#explain(*args, **kwargs, &block) ⇒ Object

: (*untyped, **untyped) ?{ () -> untyped } -> untyped



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# File 'lib/typed_operation/instrumentation.rb', line 189

def explain(*args, **kwargs, &block)
  trace = Trace.new(operation_class: self, params: kwargs.merge(positional: args))
  Instrumentation.push_trace(trace)

  result = nil
  exception = nil
  begin
    result = call(*args, **kwargs, &block)
  rescue => e
    exception = e
  end

  trace.finish!(result: result, exception: exception)
  Instrumentation.pop_trace

  formatter = TreeFormatter.new(color: Instrumentation.color)
  Instrumentation.output.puts formatter.format(trace)

  Instrumentation.clear_trace!

  raise exception if exception
  result
end