Ticket #558 (closed defect: duplicate)

Opened 5 years ago

Last modified 4 years ago

Adding 'utf8' alias as first step in D 2.0 support

Reported by:	KirkMcDonald	Assigned to:	sean
Priority:	normal	Milestone:	0.99.7
Component:	Core Functionality	Version:	0.99 RC3 Xammy
Keywords:	2.0	Cc:

Description

Phobos added the 'string' alias (and its friends) to ease the transition to D 2.0. If Tango eventually plans to move to 2.0, it should add something equivalent. If code starts being written now with such aliases, then any eventual transition will be that much smoother.

Discussion in #d.tango favored using the aliases utf8, utf16, and utf32 to represent char[], wchar[], and dchar[]. I recommend adding the following to Tango's object.di:

version (D_Version2) {
    mixin("alias const(char)[] utf8;");
    mixin("alias const(wchar)[] utf16;");
    mixin("alias const(dchar)[] utf32;");
} else {
    alias char[] utf8;
    alias wchar[] utf16;
    alias dchar[] utf32;
}

The mixins are necessary since the contents of the version block must still be parsed in D 1.0, and const() is not valid syntax there.

The rest of the Tango codebase could then be gradually converted to use these aliases where they are appropriate.

Change History

Ticket Navigation

Ticket #558 (closed defect: duplicate)

Adding 'utf8' alias as first step in D 2.0 support

Description

Change History

12/06/07 15:36:08 changed by sean

05/24/08 15:17:26 changed by larsivi

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