Wrapper object (CX_OVERWRITING_REF)

Wrapper object (CX_OVERWRITING_REF)

• Description
• Functionality
• Related topics
• Technical documentation

Description

The test routine tries to detect errors when accessing the data of a "wrapped" object, for this purpose the found and expected value are compared. With menu 'Auto-Test' the following cases are tested:

• combination slot and specifier.slot (for the same slot) occurs in the same object
• Multiple wrapped objects
• Abstraction of certain functions like Unit() at the end of an access expression
• Splitting off a subscript [n] at the end of an access expression
• Wrapper together with CX_SLOT_ATTRIBUTE::ValueMA()
• Forced overwrite with Put(..., OVERWRITE)

Menu 'Overwrite Bits' 'wraps' an object 32 times and overwrites a different bit in two slots in each step. The option 'Show Overwriting Expressions' displays a window with the overwritten expressions.

These tests are based on the following objects:

container, wrapper, wrapped2 and wcontainer are InstantView® variables of the test module

Functionality

Menu

Menu item	Description
	-

Buttons

button	Description

Related topics

• Index

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Technical documentation

• Implementation
• Quality assurance
• Module

Module

Module name

reload_qm.mod

Security

In addition to restricting access rights via the class and its data fields, the module can be restricted in its use via some of the received messages.

Received messages

Message	Parameters	Function	Security

Sent messages

Message	Parameters	Function	Receiver module