.imc file extension

http://xrl.us/jc4u

IMC vs. PIR
Two names enter
One name leaves

/me giggles
-- Chip Salzenberg

Deprecated methods

PGE

PGE::P6Regex is now a registered compiler, and should be used like so:

<@pmichaud> it's easy; instead of  $P0 = find_global "PGE", "p6rule"
  one now does  $P0 = compreg "PGE::P6Regex"

This syntax is also true for PGE::Glob and PGE::P5Regex

Deprecated ops

From http://www.parrotcode.org/docs/ops/var.html, the following ops are deprecated:

store_global

find_global

find_name

There are several variants of some of the above ops; all are deprecated, and are replaced by the ops {set,get}_[hll,root]_global. See also http://www.parrotcode.org/docs/ops/var.html.

Additionally, the following (unimplemented) ops are going to be removed:

adddoes

removedoes

singleton

Deprecated vtable methods

The following vtable methods are deprecated:

void become_parent(PMC* class)

PMC* subclass(PMC* name)

PMC* get_anonymous_subclass()

PMC* new_singleton()

FUTURE changes

Not yet deprecated, but it's recommended to use the new syntax and gradually change the old.

PMC Class name IDs [#41237]

... will require a dot in front

$P0 = new Integer               => $P0 = new .Integer

Assignment syntax with opcodes [#36283]

When the first argument of an opcode is OUT, then the assignment syntax will be allowed, as it is today.

In any other case (i.e. INOUT, IN), this will become a syntax error. For example:

$S0 = print
$P0 = substr 1, 2, "x"

Will have to be:

print $S0
substr $P0, 1, 2, "x"