Class: LazyMDArray

Inherits:
ByteMDArray show all
Defined in:
lib/mdarray/lazy_mdarray.rb

Defined Under Namespace

Classes: BinaryComp, UnaryComp

Instance Attribute Summary collapse

Attributes inherited from DoubleMDArray

#stat_list

Attributes inherited from MDArray

#binary_operator, #coerced, #float_output_precision, #float_output_suppress_small, #formatter, #id, #inf_str, #int_output_size, #local_index, #local_iterator, #max_line_width, #nan_str, #nc_array, #prefix, #separator, #summary_edge_items, #summary_threshold, #type, #unary_operator

Instance Method Summary collapse

Methods included from CernIntFunctions

register

Methods included from FunctionCreation

#make_binary_op, #make_unary_op

Methods included from CernFunctions

#cern_binary_function, #cern_comparison_function, #cern_unary_function, #make_binary_operator, #make_binary_operators, #make_comparison_operator, #make_unary_operator, #make_unary_operators

Methods included from CernLongFunctions

register

Methods included from RubyFunctions

#make_binary_operator, #make_binary_operators, #make_comparison_operator, #make_unary_operator, #make_unary_operators, #ruby_binary_function, #ruby_unary_function

Methods included from CernFloatFunctions

register

Methods inherited from DoubleMDArray

#reset_statistics

Methods included from CernDoubleFunctions

register

Methods inherited from NumericalMDArray

#coerce

Methods included from NumericFunctions

#fast_add, #zero?

Methods inherited from MDArray

#[]=, #apply_over_axes, arange, boolean, build, build_from_nc_array, byte, calc_value, char, #compatible, #copy, #csv1d, double, #dtype, #each, #each_cont, #each_slice, #each_with_counter, #flip, float, from_jstorage, fromfunction, function_map_to_csv, #get, #get_as, #get_binary_op, #get_counter, #get_current_index, #get_element_type, #get_index, #get_iterator_fast, #get_next, #get_rank, #get_scalar, #get_shape, #get_size, #get_unary_op, #immutable, init_with, int, #jget, lazy=, linspace, long, make_binary_op, make_unary_op, #ndenumerate, #ndim, #next, ones, #permute, #print0d, #print1d, print_function_map, #printing_defaults, #rank, #reduce, #region, register_function, #reset_traversal, #reshape, #reshape!, rstring, #section, #section?, #section_with_stride, select_function, #set, set_lazy, #set_next, #set_scalar, #shape, short, #size, #slice, string, structure, #to_csv, #to_s, #to_string, #transpose, typed_arange, upcast

Constructor Details

#initialize ⇒ LazyMDArray 



82
83
84
85
86
87
88
89
 
# File 'lib/mdarray/lazy_mdarray.rb', line 82

def initialize

  @stack = Array.new
  @type = "lazy"
  @previous_binary_operator = nil
  @previous_unary_operator = nil

end

Instance Attribute Details

#stack ⇒ Object (readonly)

Returns the value of attribute stack.



32
33
34
 
# File 'lib/mdarray/lazy_mdarray.rb', line 32

def stack
  @stack
end

Instance Method Details

#apply(*args) ⇒ Object Also known as: [] 



127
128
129
130
131
132
133
134
135
136
 
# File 'lib/mdarray/lazy_mdarray.rb', line 127

def apply(*args)

  type, shape, function = validate_fast(args)

  result = MDArray.build(type, shape)
  helper = Java::RbMdarrayLoopsLazy::DefaultLazyOperator
  helper.send("apply", result.nc_array, function)
  result

end

#pop ⇒ Object 



103
104
105
 
# File 'lib/mdarray/lazy_mdarray.rb', line 103

def pop
  @stack.pop
end

#print ⇒ Object 



172
173
174
175
 
# File 'lib/mdarray/lazy_mdarray.rb', line 172

def print
  Kernel.print "[Lazy MDArray]\n"
  p rpn
end

#push(elmt) ⇒ Object 



95
96
97
 
# File 'lib/mdarray/lazy_mdarray.rb', line 95

def push(elmt)
  @stack << elmt
end

#rpn(nl = true) ⇒ Object

Shows this LazyMDArray in Reverse Polish Notation. Mainly for debugging purposes.



144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
 
# File 'lib/mdarray/lazy_mdarray.rb', line 144

def rpn(nl = true)
 
  exp = String.new

  @stack.each do |elmt|

    if (elmt.is_a? LazyMDArray)
      exp << elmt.rpn(false)
    elsif (elmt.is_a? Numeric)
      exp << elmt << " "
    elsif (elmt.is_a? Operator)
      exp << elmt.name << " "
    elsif (elmt.is_a? MDArray)
      exp << elmt.type << " "
    else
      raise "Wrong element type in Array"
    end

  end

  exp

end

#test_janino_function ⇒ Object 



111
112
113
114
115
116
117
118
119
120
121
 
# File 'lib/mdarray/lazy_mdarray.rb', line 111

def test_janino_function
  $exp = ExpressionEvaluator.new
  $exp.setExpressionType(Java::CernColtFunctionTdouble::DoubleFunction.java_class)
  class_type = Java::JavaLang::Class.forName("java.lang.Class")
  array = Java::JavaLangReflect::Array.newInstance(class_type, 2)
  array[0] = Java::double.java_class
  array[1] = Java::double.java_class
  $exp.setParameters(["a", "b"].to_java(:string), 
                     array)
  $exp.cook("a + b")
end