29 lines
821 B
Ruby
29 lines
821 B
Ruby
module Bosl
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Compiler.class_eval do
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def on_field_access expression
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#puts expression.inspect
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receiver_ast , field_ast = *expression
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receiver = receiver_ast.first_from(:name)
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field_name = field_ast.first_from(:name)
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case receiver
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when :self
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for_class = self.method.for_class
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index = for_class.object_layout.variable_index(field_name)
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raise "field access, but no such field:#{field_name} for class #{for_class.name}" unless index
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value = Virtual::Return.new(:int)
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method.source.add_code Virtual::Set.new( Virtual::SelfSlot.new(index, :int ) , value )
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when :message
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#message Slot
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raise "message not yet"
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else
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#arg / frame Slot
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raise "frame not implemented"
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end
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value
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end
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end
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end
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