Class: Kumi::Core::Analyzer::Passes::Codegen::Loop::Ruby::OutputBuffer

Inherits:
Object
  • Object
show all
Defined in:
lib/kumi/core/analyzer/passes/codegen/loop/ruby/output_buffer.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ OutputBuffer

Returns a new instance of OutputBuffer.



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# File 'lib/kumi/core/analyzer/passes/codegen/loop/ruby/output_buffer.rb', line 11

def initialize
  @out = []
  @indent = 0
end

Instance Method Details

#dedent! ⇒ Object 



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# File 'lib/kumi/core/analyzer/passes/codegen/loop/ruby/output_buffer.rb', line 23

def dedent!
  @indent -= 1
end

#emit_footer ⇒ Object 



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# File 'lib/kumi/core/analyzer/passes/codegen/loop/ruby/output_buffer.rb', line 33

def emit_footer
  dedent!
  rewrite_line("end") if last_line == "end\n"
  write "end"
end

#emit_header(module_name) ⇒ Object 



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# File 'lib/kumi/core/analyzer/passes/codegen/loop/ruby/output_buffer.rb', line 27

def emit_header(module_name)
  write "# Autogenerated by Kumi Codegen"
  write "module Kumi::Compiled::#{module_name}"
  indent!
end

#indent! ⇒ Object 



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# File 'lib/kumi/core/analyzer/passes/codegen/loop/ruby/output_buffer.rb', line 19

def indent!
  @indent += 1
end

#indented ⇒ Object 



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# File 'lib/kumi/core/analyzer/passes/codegen/loop/ruby/output_buffer.rb', line 44

def indented
  indent!
  yield
  dedent!
end

#last_line ⇒ Object 



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# File 'lib/kumi/core/analyzer/passes/codegen/loop/ruby/output_buffer.rb', line 54

def last_line
  line_at(-2)
end

#line_at(idx) ⇒ Object 



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# File 'lib/kumi/core/analyzer/passes/codegen/loop/ruby/output_buffer.rb', line 58

def line_at(idx)
  @out[idx]
end

#reset! ⇒ Object 



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# File 'lib/kumi/core/analyzer/passes/codegen/loop/ruby/output_buffer.rb', line 17

def reset! = @out.clear

#rewrite_line(new_line_content, idx = -2)) ⇒ Object 



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# File 'lib/kumi/core/analyzer/passes/codegen/loop/ruby/output_buffer.rb', line 62

def rewrite_line(new_line_content, idx = -2)
  return if @out.empty?

  @out[idx] = new_line_content
end

#section(name) ⇒ Object 



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# File 'lib/kumi/core/analyzer/passes/codegen/loop/ruby/output_buffer.rb', line 39

def section(name)
  write "#{name}\n"
  yield
end

#to_s ⇒ Object 



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# File 'lib/kumi/core/analyzer/passes/codegen/loop/ruby/output_buffer.rb', line 16

def to_s = @out.join

#write(s, indent = @indent) ⇒ Object 



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# File 'lib/kumi/core/analyzer/passes/codegen/loop/ruby/output_buffer.rb', line 50

def write(s, indent = @indent)
  @out << ("  " * indent) << s << "\n"
end