rubyx/lib/ruby/if_statement.rb
Torsten Rüger d1f8733623 Rename Vool to Sol
Simple is really the descriptive name for the layer
Sure, it is "virtual" but that is not as important as the fact that it is simple (or simplified)
Also objct (based really) is better, since orientated implies it is a little like that, but only orientated, not really it. Sol only has objects, nothing else
Just cause i was renaming anyway
2019-10-04 00:38:47 +03:00

49 lines
1.3 KiB
Ruby

require_relative "normalizer"
module Ruby
# The if must have condition and a true branch, the false is optional
#
# It maps pretty much one to one to a Sol, except for "hoisting"
#
# Ruby may have super complex expressions as the condition, whereas
# Sol may not. Ie of a Statement list all but the last are hoisted to before
# the sol if. This is equivalent, just easier to compile later
#
# The hoisintg code is in Normalizer, as it is also useed in return and while
class IfStatement < Statement
include Normalizer
attr_reader :condition , :if_true , :if_false
def initialize( cond , if_true , if_false = nil)
@condition = cond
@if_true = if_true
@if_false = if_false
end
def to_sol
cond , hoisted = *normalized_sol(@condition)
me = Sol::IfStatement.new(cond , @if_true&.to_sol, @if_false&.to_sol)
return me unless hoisted
Sol::Statements.new( hoisted ) << me
end
def has_false?
@if_false != nil
end
def has_true?
@if_true != nil
end
def to_s(depth = 0)
parts = "if(#{@condition})\n"
parts += " #{@if_true.to_s(1)}\n" if(@if_true)
parts += "else\n" if(@if_false)
parts += " #{@if_false.to_s(1)}\n" if(@if_false)
parts += "end\n"
at_depth(depth , parts )
end
end
end