Symbol Dictionary

    In order to apply many of the transformation rules that take place during the translation process, a symbol resolution mechanism is imperative. This mechanism allows the migration tool to find out the following information:

    • Each expression’s data type.
    • Referenced library elements.
    • Implicit default properties which are tacitly referenced and should be explicit in .NET
    • Type coercions which should be generated in the target language
    • The corresponding library element in .NET for each element in VB6
    • Parameters declared as by-ref, out or optional which require special translations
    • Etc.

    These symbol dictionaries have been strongly improved by adding the typing mechanism, a feature that allows resolving the most appropriate type for an undeclared series of elements, or that were declared as an abstract high-level type like Variant, Control or Form. See “Typing Mechanism” section below.

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