Create an ASTConstant with same value as argument.

Creates an ASTConstant node with specified value. This method should be overwritten by subclasses.

Creates a constant node whose result is the given function applied to the children.

Creates a ASTConstant whose value of applying a unary operator to its arguments.

Creates a ASTConstant whose value of applying the operator to its arguments.

Creates a ASTConstant whose value of applying binary operator to its arguments.