Class: Furnace::AVM2::Transform::PropagateConstants

Inherits:
Object
  • Object
show all
Includes:
Visitor
Defined in:
lib/furnace-avm2/transform/propagate_constants.rb

Overview

This pass does NOT do proper DFA. It is here only to propagate find-property-strict calls down the AST.

Defined Under Namespace

Classes: Replacer

Instance Method Summary collapse

Instance Method Details

#on_set_local(node) ⇒ Object 



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# File 'lib/furnace-avm2/transform/propagate_constants.rb', line 50

def on_set_local(node)
  index, value = node.children
  if value.type == :find_property_strict
    block = node.parent
    nodes = block.children[(block.children.index(node) + 1)..-1]

    replacer = Replacer.new(index, value)
    if replacer.replace_in(nodes)
      node.update(:remove)
    end
  end
end

#transform(ast, *stuff) ⇒ Object 



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# File 'lib/furnace-avm2/transform/propagate_constants.rb', line 44

def transform(ast, *stuff)
  visit ast

  [ ast, *stuff ]
end