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Author Topic: what's difference between Variant and TVarRec?  (Read 990 times)

egsuh

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what's difference between Variant and TVarRec?
« on: April 24, 2024, 05:24:24 pm »
They seem very similar. Well, TVarRec is variant record. But isn't variant variant record?
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ASerge

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Re: what's difference between Variant and TVarRec?
« Reply #1 on: April 24, 2024, 07:09:52 pm »
Quote from: egsuh on April 24, 2024, 05:24:24 pm
They seem very similar. Well, TVarRec is variant record. But isn't variant variant record?
Do not confuse TVarRec with TVarData, which is the internal representation of Variant.
TVarRec is an element of the array of const.
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PascalDragon

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Re: what's difference between Variant and TVarRec?
« Reply #2 on: April 25, 2024, 09:28:59 pm »
Quote from: egsuh on April 24, 2024, 05:24:24 pm
They seem very similar. Well, TVarRec is variant record. But isn't variant variant record?

Variant by itself is an opaque type backed by a variant record (TVarData) that also allows to invoke methods and properties on the Variant (compared to TVarRec). Another modern variant record is Rtti.TValue.
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