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ab

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From: France

Registered: 2010-06-21

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Strong-typing just rocks

To my understanding, the so-called "strong-typing" feature is one big benefit of the Delphi object pascal language.

Most generally, "strong typing" implies that the programming language places severe restrictions on the intermixing that is permitted to occur, preventing the compiling or running of source code which uses data in what is considered to be an invalid way. For instance, an addition operation may not be used with an integer and string values; a procedure which operates upon linked lists may not be used upon numbers. However, the nature and strength of these restrictions is highly variable.

Some Delphi users may find this is a limitation of the language, in comparison with other "fashionable" script idioms (like Python, Javascript of Ruby). For me, runtime strong typing (alla Python or Ruby) is not true strong typing. Simon Stuart just proposed a smartstring kind of string, which is in fact a weakstring type. As far as I understood his point, he wanted to get rid of all the warnings emitted by Unicode-version of the Delphi compiler, about explicit string conversion.

In fact, I use to go in the opposite direction. For wide projects, strong-typing is one of the big benefit of using Delphi (like other main "serious" languages like Java, C, C++, Ada or C#).

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