Difference between revisions of "BlackBox Component Builder 1.7"
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==== Migration problems detected by the compiler ==== | ==== Migration problems detected by the compiler ==== | ||
===== IN to VAR ===== | |||
With 1.7 it is forbidden to use a variable declared as IN parameter as the receiver of a method call that expects a VAR receiver. You should change the IN parameter to VAR or the VAR receiver to IN in such a case. | With 1.7 it is forbidden to use a variable declared as IN parameter as the receiver of a method call that expects a VAR receiver. You should change the IN parameter to VAR or the VAR receiver to IN in such a case. | ||
===== Read-only variables ===== | |||
With 1.7 it is forbidden to call the methods of a read-only variable if the receiver is declared to be VAR. So you should export such a variable by * or use IN for the receiver. | With 1.7 it is forbidden to call the methods of a read-only variable if the receiver is declared to be VAR. So you should export such a variable by * or use IN for the receiver. | ||
===== WinNet.hostent definition ===== | |||
With 1.7 the WinNet.hostent definition [http://redmine.blackboxframework.org/projects/blackbox/repository/diff?utf8=%E2%9C%93&rev=b3f0ad9f9012f89fb110909485ef22d35a49a46e&rev_to=bc96c56d1c94894f8e2afaf4a919ad8e79cdae64 was fixed], so you need to replace: | With 1.7 the WinNet.hostent definition [http://redmine.blackboxframework.org/projects/blackbox/repository/diff?utf8=%E2%9C%93&rev=b3f0ad9f9012f89fb110909485ef22d35a49a46e&rev_to=bc96c56d1c94894f8e2afaf4a919ad8e79cdae64 was fixed], so you need to replace: | ||
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==== Migration problems NOT detected by the compiler ==== | ==== Migration problems NOT detected by the compiler ==== | ||
===== Underlined white space ===== | |||
Underlined spaces and tabs are now shown according to the defined format, i.e. they are underlined. So we recommend you to check your documentation files and/or program generated text files to prevent unexpected underlines. | Underlined spaces and tabs are now shown according to the defined format, i.e. they are underlined. So we recommend you to check your documentation files and/or program generated text files to prevent unexpected underlines. | ||
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==== Options for improvements after Migration ==== | ==== Options for improvements after Migration ==== | ||
===== UTF8 ===== | |||
UTF-8 conversion is supported "out of the box" from module <code>Strings</code>. So if you are using UTF-8 conversions embedded in your own code or from some third-party modules, you can switch to the new Strings procedures. | UTF-8 conversion is supported "out of the box" from module <code>Strings</code>. So if you are using UTF-8 conversions embedded in your own code or from some third-party modules, you can switch to the new Strings procedures. | ||
===== External calls ===== | |||
1.7 supports calling URLs (e.g. web pages, E-mails), so now you can be sure that the user can call your link from documentation even if external CPC subsystems such as Info or i21Sys are not installed. | 1.7 supports calling URLs (e.g. web pages, E-mails), so now you can be sure that the user can call your link from documentation even if external CPC subsystems such as Info or i21Sys are not installed. | ||
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Use the <code>Dialog.OpenExternal</code> procedure to call a URL. | Use the <code>Dialog.OpenExternal</code> procedure to call a URL. | ||
===== Config & Converters ===== | |||
The new Converter.next* export allows uninstalling and ordering converters "on the fly" from any module not just from the Config module used at BlackBox startup. | The new Converter.next* export allows uninstalling and ordering converters "on the fly" from any module not just from the Config module used at BlackBox startup. | ||
Revision as of 14:10, 7 September 2016
Download Release Candidate
Migration from 1.6 to 1.7
BlackBox 1.7 contains in its root directory a detailed change list documenting all changes from 1.6 to 1.7. Most changes don't affect existing code but all existing code must be recompiled.
Migration problems detected by the compiler
IN to VAR
With 1.7 it is forbidden to use a variable declared as IN parameter as the receiver of a method call that expects a VAR receiver. You should change the IN parameter to VAR or the VAR receiver to IN in such a case.
Read-only variables
With 1.7 it is forbidden to call the methods of a read-only variable if the receiver is declared to be VAR. So you should export such a variable by * or use IN for the receiver.
WinNet.hostent definition
With 1.7 the WinNet.hostent definition was fixed, so you need to replace:
inaddr := hostentry.h_addr_list^[0]^[0]
to
inaddr := SYSTEM.VAL(WinNet.in_addr, hostentry.h_addr_list^[0]^)
Migration problems NOT detected by the compiler
Underlined white space
Underlined spaces and tabs are now shown according to the defined format, i.e. they are underlined. So we recommend you to check your documentation files and/or program generated text files to prevent unexpected underlines.
Options for improvements after Migration
UTF8
UTF-8 conversion is supported "out of the box" from module Strings. So if you are using UTF-8 conversions embedded in your own code or from some third-party modules, you can switch to the new Strings procedures.
External calls
1.7 supports calling URLs (e.g. web pages, E-mails), so now you can be sure that the user can call your link from documentation even if external CPC subsystems such as Info or i21Sys are not installed.
Use the Dialog.OpenExternal procedure to call a URL.
Config & Converters
The new Converter.next* export allows uninstalling and ordering converters "on the fly" from any module not just from the Config module used at BlackBox startup.
Useful tools for migration
There is the tool for batch compilation of subsystems: ypkDevTool.
There is bug report about an TRAP during creation of folders.