[Solved] How would you modify this DSL builder to allow nested blocks for steps?... How would you modify this DSL builder to allow nested blocks for steps? | Ruby

Ruby - Advanced Metaprogramming

How would you modify this DSL builder to allow nested blocks for steps?

class Builder
  def initialize
    @steps = []
  end
  def step(name, &block)
    if block
      nested_builder = Builder.new
      nested_builder.instance_eval(&block)
      @steps << {name => nested_builder.steps}
    else
      @steps << name
    end
  end
end

ARemove &block from step method to simplify calls

BUse yield instead of instance_eval for nested blocks

CAdd a steps method to expose @steps for nested access

DInitialize @steps as a hash instead of array

Step-by-Step Solution

Solution:

Step 1: Identify nested block handling
Nested blocks create new Builder instances and store nested steps.
Step 2: Expose nested steps
Adding a steps method allows access to @steps for nesting to work properly.
Final Answer:
Add a steps method to expose @steps for nested access -> Option C
Quick Check:
Nested DSL needs accessor for internal steps [OK]

Quick Trick: Expose internal state with methods for nested DSL blocks [OK]

Common Mistakes:

Removing block parameter breaks nesting
Using yield loses context for nested builder
Changing @steps to hash breaks ordered steps

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How would you modify this DSL builder to allow nested blocks for steps?

Step 1: Identify nested block handling

Step 2: Expose nested steps

Final Answer:

Quick Check:

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