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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘Delphi 10.1 Berlin (BigBen)’ Category

System.TypInfo.SizeOfSet – RAD Studio API Documentation

Posted by jpluimers on 2021/08/11

This seems to have been introduced into Delphi Berlin: [WayBack] System.TypInfo.SizeOfSet – RAD Studio API Documentation. Maybe slightly earlier, but at least it was not documented in XE8 [WayBack] (via [WayBack] Delphi “SizeOfSet”.).

This is a useful function, for instance to get the Cardinality of a set in [WayBack] delphi – How can I get the number of elements of any variable of type set? – Stack Overflow.

From what I can see, the undocumented TLargestSet type also got introduced in Delphi Berlin.

Few hits by Google on [WayBack] Delphi “TLargestSet”, including [WayBack] Free Automated Malware Analysis Service – powered by Falcon Sandbox – Viewing online file analysis results for ‘Coperativa.exe’.

Not much more is documented than this in Tokyo [WayBack]:

System.TypInfo.SizeOfSet

Delphi

function SizeOfSet(TypeInfo: PTypeInfo): Integer;

C++

extern DELPHI_PACKAGE int __fastcall SizeOfSet(PTypeInfo TypeInfo);

Properties

Type Visibility Source Unit Parent
function public
System.TypInfo.pas
System.TypInfo.hpp
System.TypInfo System.TypInfo

Description

Embarcadero Technologies does not currently have any additional information. Please help us document this topic by using the Discussion page!

–jeroen

Posted in Delphi, Delphi 10.1 Berlin (BigBen), Delphi 10.2 Tokyo (Godzilla), Delphi 10.3 Rio (Carnival), Delphi XE8, Development, Software Development | Leave a Comment »

F2084 Internal Error: MA1263 – no relevant results

Posted by jpluimers on 2021/02/11

I tried searching for F2084 Internal Error: MA1263 – Google Search which happened on a complete up to date Delphi 10.1 Berlin installation.

It came from a large unit testing application using truckloads of generic language constructs, and large unit uses cycles.

Could not find anything useful. The error disappeared after recompiling the same application:

–jeroen

Posted in Delphi, Delphi 10.1 Berlin (BigBen), Development, Software Development | Leave a Comment »

Delphi 10.1.2 Berlin: after ….

Posted by jpluimers on 2019/12/25

For my archive: [WayBack] Bummer, a big showstopper with Berlin 10.1.2: an object with an indexed property getter crashes the debugger! Please +Marco Cantù we need a fix for this… – André Mussche – Google+

When debugging and adding a watch on a property:

  1. ‘Function to be called, xxxx, was eliminated by linker’
  2. ‘Assertion failure: “!e32->evalArgs.evalFCallPending”
    in ..\win32src\proc32.cpp at line 1830’

It was fixed in 10.2 Tokyo: [RSP-16522] property getters with index can’t be viewed in the debugger and crashes! – Embarcadero Technologies

–jeroen

Posted in Delphi, Delphi 10.1 Berlin (BigBen), Development, Software Development | Leave a Comment »

Interface methods are not assignment compatible with method references or methods of object.

Posted by jpluimers on 2019/04/02

Boy I wish that QC was still up and QualityPortal was publicly indexable as that would have saved me quite a bit of time tracking this down. Luckily I got help from Stefan Glienke (who maintains the awesome Spring4D library based on modern Delphi compiler support) when I mentioned

How good are you with reference to function?
I’ve an odd compiler thing throwing errors when using interfaces but not with classes.

So, for posterity:

Unlike C#, in Delphi interface methods are not compatible with method references or methods of object.

This has many manifestations, which means you can get a variety of compiler errors. I’ve listed the ones I could find below, but presume there are more and if I find more will update this post.

These are the errors you can get:

  • E2010 Incompatible types: ‘T’ and ‘Procedure’
  • E2035 Not enough actual parameters
  • E2250 There is no overloaded version of ‘FirstOrDefault’ that can be called with these arguments

These are the (now defunct, but used to be publicly accessible) QC and QualityPortal (needs sign on) entries (thanks Stefan Glienke and Blaise Thorn for reporting these):

The really frustrating part is that the RSP is marked as “new feature” whereas clearly it isn’t, so it probably never will be fixed.

A workaround for now is to wrap the interface method references with:

  • either anonymous methods (when you have just a few classes to cover, but maybe more than a few methods on the interface)
  • or instance methods on a class (when there are many classes to cover and preferably few methods on the interface)

Examples are in the code below that also shows this works fine and dandy in C#.

–jeroen

Read the rest of this entry »

Posted in Delphi, Delphi 10 Seattle, Delphi 10.1 Berlin (BigBen), Delphi 10.2 Tokyo (Godzilla), Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Delphi XE7, Delphi XE8, Development, Software Development, Spring4D | Leave a Comment »

There can be only MS Office sample automation server wrapper components in RAD Studio

Posted by jpluimers on 2019/02/27

There are six variations; only one can be active at a time:

  • Delphi Office 2000 Servers Package
  • Delphi Office XP Servers Package
  • Delphi Office 2010 Servers Package
  • C++Builder Office 2000 Servers Package
  • C++Builder Office XP Servers Package
  • C++Builder Office 2010 Servers Package

via: I cannot get MS Office sample automation server wrapper components. Neither of… [WayBack]

More in depth article explaining all the nitty gritty details: There Can Only Be One! Handling Different Versions of Design Packages inside the IDE | The Art of Delphi Programming [WayBack]

–jeroen

Posted in Delphi, Delphi 10 Seattle, Delphi 10.1 Berlin (BigBen), Delphi 2005, Delphi 2006, Delphi 2007, Delphi 2009, Delphi 2010, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Delphi XE7, Delphi XE8, Development, Software Development | Leave a Comment »

 
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