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[swfinterp] Formalize built-in classes
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4686ae4b64
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@ -149,6 +149,11 @@ def _read_byte(reader):
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StringClass = _AVMClass('(no name idx)', 'String')
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ByteArrayClass = _AVMClass('(no name idx)', 'ByteArray')
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_builtin_classes = {
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StringClass.name: StringClass,
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ByteArrayClass.name: ByteArrayClass,
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}
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class _Undefined(object):
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@ -468,11 +473,31 @@ class SWFInterpreter(object):
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[stack.pop() for _ in range(arg_count)]))
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obj = stack.pop()
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if isinstance(obj, _AVMClass_Object):
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if obj == StringClass:
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if mname == 'String':
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assert len(args) == 1
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assert isinstance(args[0], (
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int, compat_str, _Undefined))
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if args[0] == undefined:
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res = 'undefined'
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else:
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res = compat_str(args[0])
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stack.append(res)
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continue
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else:
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raise NotImplementedError(
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'Function String.%s is not yet implemented'
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% mname)
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elif isinstance(obj, _AVMClass_Object):
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func = self.extract_function(obj.avm_class, mname)
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res = func(args)
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stack.append(res)
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continue
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elif isinstance(obj, _AVMClass):
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func = self.extract_function(obj, mname)
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res = func(args)
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stack.append(res)
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continue
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elif isinstance(obj, _ScopeDict):
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if mname in obj.avm_class.method_names:
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func = self.extract_function(obj.avm_class, mname)
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@ -504,21 +529,6 @@ class SWFInterpreter(object):
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res = args[0].join(obj)
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stack.append(res)
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continue
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elif obj == StringClass:
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if mname == 'String':
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assert len(args) == 1
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assert isinstance(args[0], (
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int, compat_str, _Undefined))
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if args[0] == undefined:
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res = 'undefined'
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else:
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res = compat_str(args[0])
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stack.append(res)
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continue
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else:
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raise NotImplementedError(
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'Function String.%s is not yet implemented'
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% mname)
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raise NotImplementedError(
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'Unsupported property %r on %r'
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% (mname, obj))
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@ -582,8 +592,8 @@ class SWFInterpreter(object):
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break
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else:
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res = scopes[0]
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if mname not in res and mname == 'String':
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stack.append(StringClass)
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if mname not in res and mname in _builtin_classes:
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stack.append(_builtin_classes[mname])
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else:
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stack.append(res[mname])
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elif opcode == 94: # findproperty
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