ComplexConstructor

A complex value built from two real expressions.

Declaration

Syntax

ComplexConstructor(expr re, expr im, ttype type, expr? value)

Arguments

Argument

Description

re

the real part.

im

the imaginary part.

type

the type of the expression.

value

the compile time value of the expression, when the frontend could fold it; nil otherwise.

Return values

The value of the expression.

Description

(a, b) where a and b are expressions rather than literals. When both fold to constants the frontend puts the resulting ComplexConstant in value.

Examples

(ComplexConstructor
  :re (RealConstant
    :r 1.0
    :type (Real
      :kind 4
    )
  )
  :im (Var
    :v (SymbolRef 1 "x")
  )
  :type (Complex
    :kind 4
  )
  :value nil
)

It comes from this complete ASR text document:

(TranslationUnit
  :symtab (SymbolTable
    :id 0
    :symbols {
      "main" (Program
        :symtab (SymbolTable
          :id 1
          :symbols {
            "b" (Variable
              :parent_symtab 1
              :name "b"
              :dependencies []
              :intent :Local
              :symbolic_value nil
              :value nil
              :storage :Default
              :type (Logical
                :kind 4
              )
              :type_declaration nil
              :abi :Source
              :access :Public
              :presence :Required
              :value_attr false
              :target_attr false
              :contiguous_attr false
              :bindc_name nil
              :is_volatile false
              :is_protected false
              :pass_attr :NotMethod
              :self_argument nil
              :codims []
            )
            "w" (Variable
              :parent_symtab 1
              :name "w"
              :dependencies []
              :intent :Local
              :symbolic_value nil
              :value nil
              :storage :Default
              :type (Complex
                :kind 4
              )
              :type_declaration nil
              :abi :Source
              :access :Public
              :presence :Required
              :value_attr false
              :target_attr false
              :contiguous_attr false
              :bindc_name nil
              :is_volatile false
              :is_protected false
              :pass_attr :NotMethod
              :self_argument nil
              :codims []
            )
            "x" (Variable
              :parent_symtab 1
              :name "x"
              :dependencies []
              :intent :Local
              :symbolic_value nil
              :value nil
              :storage :Default
              :type (Real
                :kind 4
              )
              :type_declaration nil
              :abi :Source
              :access :Public
              :presence :Required
              :value_attr false
              :target_attr false
              :contiguous_attr false
              :bindc_name nil
              :is_volatile false
              :is_protected false
              :pass_attr :NotMethod
              :self_argument nil
              :codims []
            )
            "z" (Variable
              :parent_symtab 1
              :name "z"
              :dependencies []
              :intent :Local
              :symbolic_value nil
              :value nil
              :storage :Default
              :type (Complex
                :kind 4
              )
              :type_declaration nil
              :abi :Source
              :access :Public
              :presence :Required
              :value_attr false
              :target_attr false
              :contiguous_attr false
              :bindc_name nil
              :is_volatile false
              :is_protected false
              :pass_attr :NotMethod
              :self_argument nil
              :codims []
            )
          }
        )
        :name "main"
        :dependencies []
        :body [
          (Assignment
            :target (Var
              :v (SymbolRef 1 "z")
            )
            :value (ComplexConstant
              :re 1.0
              :im 2.0
              :type (Complex
                :kind 4
              )
            )
            :overloaded nil
            :realloc_lhs false
            :move_allocation false
          )
          (Assignment
            :target (Var
              :v (SymbolRef 1 "z")
            )
            :value (ComplexConstructor
              :re (RealConstant
                :r 1.0
                :type (Real
                  :kind 4
                )
              )
              :im (Var
                :v (SymbolRef 1 "x")
              )
              :type (Complex
                :kind 4
              )
              :value nil
            )
            :overloaded nil
            :realloc_lhs false
            :move_allocation false
          )
          (Assignment
            :target (Var
              :v (SymbolRef 1 "w")
            )
            :value (ComplexBinOp
              :left (Var
                :v (SymbolRef 1 "z")
              )
              :op :Mul
              :right (ComplexConstant
                :re 0.0
                :im 1.0
                :type (Complex
                  :kind 4
                )
              )
              :type (Complex
                :kind 4
              )
              :value nil
            )
            :overloaded nil
            :realloc_lhs false
            :move_allocation false
          )
          (Assignment
            :target (Var
              :v (SymbolRef 1 "w")
            )
            :value (ComplexUnaryMinus
              :arg (Var
                :v (SymbolRef 1 "z")
              )
              :type (Complex
                :kind 4
              )
              :value nil
            )
            :overloaded nil
            :realloc_lhs false
            :move_allocation false
          )
          (Assignment
            :target (Var
              :v (SymbolRef 1 "x")
            )
            :value (ComplexRe
              :arg (Var
                :v (SymbolRef 1 "z")
              )
              :type (Real
                :kind 4
              )
              :value nil
            )
            :overloaded nil
            :realloc_lhs false
            :move_allocation false
          )
          (Assignment
            :target (Var
              :v (SymbolRef 1 "x")
            )
            :value (ComplexIm
              :arg (Var
                :v (SymbolRef 1 "z")
              )
              :type (Real
                :kind 4
              )
              :value nil
            )
            :overloaded nil
            :realloc_lhs false
            :move_allocation false
          )
          (Assignment
            :target (Var
              :v (SymbolRef 1 "b")
            )
            :value (ComplexCompare
              :left (Var
                :v (SymbolRef 1 "z")
              )
              :op :Eq
              :right (Var
                :v (SymbolRef 1 "w")
              )
              :type (Logical
                :kind 4
              )
              :value nil
            )
            :overloaded nil
            :realloc_lhs false
            :move_allocation false
          )
        ]
      )
    }
  )
  :items []
)

See Also

ComplexConstant, ComplexRe, ComplexIm