Class: CSquare::Generator::AssignOp

Inherits:
Op
  • Object
show all
Defined in:
lib/csquare/generator/assign_op.rb

Instance Attribute Summary

Attributes inherited from Op

#blueprint, #id, #patterns

Instance Method Summary collapse

Methods inherited from Op

#[], #[]=, #has_key?, #initialize, #inspect

Constructor Details

This class inherits a constructor from CSquare::Generator::Op

Instance Method Details

#decorated(args_types, return_type, default_type_symbol) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/csquare/generator/assign_op.rb', line 3

def decorated args_types, return_type, default_type_symbol
  raise(ArgumentError, "expected 1-2 args, found #{args_types.size}") unless args_types.size == 1 || args_types.size == 2

  super(args_types, return_type, default_type_symbol)
end

#select_pattern(args_types, return_type) ⇒ Object

Determine which pattern to apply



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# File 'lib/csquare/generator/assign_op.rb', line 10

def select_pattern args_types, return_type

  arg = args_types.keys[1] || args_types.keys[0] # assign || unary
  type = args_types[arg]

  pat = begin
    if self.has_key?(arg)
      self[arg]
    elsif type.is_a?(Symbol)
      self[type]
    elsif type == return_type # homogeneous
      self[blueprint.key]
    else                      # heterogeneous

      if type == blueprint.long_key
        self[type]
      else
        self[:cast]
      end

    end
  end

  # If we have TYPE on the right, we need to change it to LONG_TYPE if the return type is also LONG_TYPE
  if pat =~ /\(struct\s([A-Z]+)\)/
    orig_struct_type = $1
    if return_type == "LONG_#{orig_struct_type}"
      return pat.gsub("(struct #{orig_struct_type})", "(struct LONG_#{orig_struct_type})")
    end
  end

  pat
end

#select_type_symbol(types, return_type, default_symbol) ⇒ Object

Determine a type symbol to apply to function calls based on argument and return types.



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# File 'lib/csquare/generator/assign_op.rb', line 45

def select_type_symbol types, return_type, default_symbol

  if return_type == blueprint.long_key
    blueprint.types[default_symbol].long_id
  else
    default_symbol
  end
end