Class: RubyHDL::High::Ruby

Inherits:
Expression show all
Defined in:
lib/HDLRuby/std/sequencer_sw.rb

Overview

Describes arbitrary code.

Constant Summary collapse

@@ruby_blocks = 
[]

Instance Attribute Summary

Attributes inherited from Expression

#type

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Expression

#<=, #[], #mux, #sdownto, #seach, #stimes, #supto, #to_value

Constructor Details

#initialize(str = nil, &ruby_block) ⇒ Ruby

Create a new ruby code block for either +ruby_block+ or string +str+.



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# File 'lib/HDLRuby/std/sequencer_sw.rb', line 2594

def initialize(str = nil, &ruby_block)
  @str = str
  # puts "ruby_block=#{ruby_block}"
  # Create the id for the block.
  @id = @@ruby_blocks.size
  # Adds the block.
  if ruby_block then
    @@ruby_blocks << ruby_block
  else
    @@ruby_blocks << proc { TOPLEVEL_BINDING.eval(@str.to_s) }
  end
end

Class Method Details

.call(id) ⇒ Object

Execute a ruby code block for +ruby_block+.



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# File 'lib/HDLRuby/std/sequencer_sw.rb', line 2629

def self.call(id)
  # puts "id=#{id}"
  @@ruby_blocks[id].call
end

Instance Method Details

#each_statement(&ruby_block) ⇒ Object

Iterate on the statements.



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# File 'lib/HDLRuby/std/sequencer_sw.rb', line 2616

def each_statement(&ruby_block)
  return to_enum(:each_statement) unless ruby_block
  # By default nothing to do.
end

#each_statement_deep(&ruby_block) ⇒ Object

Iterate deeply on the statements.



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# File 'lib/HDLRuby/std/sequencer_sw.rb', line 2622

def each_statement_deep(&ruby_block)
  return to_enum(:each_statement_deep) unless ruby_block
  # Just apply ruby_block on self.
  ruby_block.call(self)
end

#to_c ⇒ Object

Convert to C code.



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# File 'lib/HDLRuby/std/sequencer_sw.rb', line 2645

def to_c
  return "rb_eval_string(\"#{@str.to_s}\");"
end

#to_expr ⇒ Object

Convert to expression: does not change but remove from the statement list.



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# File 'lib/HDLRuby/std/sequencer_sw.rb', line 2609

def to_expr
  # Remove the transmit from the top SW block.
  RubyHDL::High.top_sblock.delete(self)
  return self
end

#to_ruby ⇒ Object

Convert to Ruby code.



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# File 'lib/HDLRuby/std/sequencer_sw.rb', line 2635

def to_ruby
  # puts caller[0]
  if @str then
    return TOPLEVEL_BINDING.eval(@str)
  else
    return "RubyHDL::High::Ruby.call(#{@id})"
  end
end