CCXML : Query regarding error.semantic

Hi,

Currently Spec Says 

"It is illegal to make an assignment to a variable that has not been
explicitly declared using <var> or a var statement within a <script>.
Attempting to assign to an undeclared variable causes an error.semantic
event to be thrown."

But , is this applicable to accessing also : 

For ex:

<log expr ="varable_1"/>

variable_1 is not declared in entire document.

And log won't modify or assign value to variable_1.

Does this cause error.semantic to be thrown by interpreter. Currently spec
does not say accessing must result in throwing error.semantic. 

One more typical example will be :

Accessing an optional attribute in an event. Using
event$.optinal_attribute_name , does interpreter throw error.semantic if
optinal_attribute_name is not set while throwing event to ccxml interpreter.

Regards,

Murali Dhara R

 

 

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