Module: MilkTea::CLI::CommandLower

Included in:
MilkTea::CLI
Defined in:
lib/milk_tea/tooling/cli/commands/lower.rb

Instance Method Summary collapse

Instance Method Details

#lower_command ⇒ Object 



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# File 'lib/milk_tea/tooling/cli/commands/lower.rb', line 6

def lower_command
  sexpr = false
  args = @argv.dup
  @argv = []
  until args.empty?
    arg = args.shift
    if arg == "--sexpr"
      sexpr = true
      next
    end
    @argv << arg
  end

  unless @argv.any?
    @err.puts("missing source file path")
    print_usage(@err)
    return 1
  end

  resolution = extract_resolution_flags!
  input_paths = @argv.dup
  return 1 unless ensure_known_source_operands!("lower", input_paths)

  paths = expand_source_paths(input_paths)
  return 0 if print_no_source_files_if_empty(paths, input_paths)

  ensure_current_lockfiles!(paths) if resolution[:frozen]

  multiple = paths.length > 1
  paths.each_with_index do |path, index|
    program = make_module_loader(path, locked: resolution[:locked], platform: ModuleLoader.default_host_platform).check_program(path)
    if multiple
      @out.puts("# --- #{path} ---") unless sexpr
    end
    if sexpr
      @out.puts(SexprDumper.dump_ir(Lowering.lower(program)))
    else
      @out.write(PrettyPrinter.format_ir(Lowering.lower(program)))
    end
  end
  0
end