Class: Metal::Generator::OrSet

Inherits:
Object
  • Object
show all
Defined in:
lib/metal/generator.rb

Instance Method Summary collapse

Constructor Details

#initialize(and_sets) ⇒ OrSet

Returns a new instance of OrSet.



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# File 'lib/metal/generator.rb', line 214

def initialize(and_sets)
	@and_sets = and_sets
end

Instance Method Details

#generate(ctx, source) ⇒ Object 



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# File 'lib/metal/generator.rb', line 220

def generate(ctx, source)
	if @and_sets.length <= 1
		# optimize
		@and_sets.each {|and_set|
			and_set.generate(ctx, source)
		}
	else
		objs = []
		@and_sets.each {|and_set|
			obj = ctx.rule.with_lambda(source) {
				and_set.generate(ctx, source)
			}
			objs.push obj
		}
		set_name = "#{objs.first}_or"
		source << "Lambda* #{set_name}[] = {\n"
			objs.each {|obj|
				source << "&#{obj},\n"
			}
			source << "NULL\n"
		source << "};\n"
		source << "ctx->act_or(#{set_name});\n"
	end
end

#preprocess(ctx) ⇒ Object 



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# File 'lib/metal/generator.rb', line 217

def preprocess(ctx)
	@and_sets.each {|and_set| and_set.preprocess(ctx) }
end