Please see docs/project/support_policy.pod for the parrot project's policy regarding deprecated features.
This is a list of currently deprecated features of Parrot. Every deprecation has an associated Trac ticket [1]. Each item indicates the first release in which it is eligible for removal. If the release listed is one that has already occurred, this feature may be removed at any time.
Following the 1.0 release, whenever deprecated items are removed, information regarding how to cope with the removal will be added to https://trac.parrot.org/parrot/wiki/Deprecation.
When running parrot,
you can receive warnings about deprecated opcodes.
Either run parrot with the -w option to enable all warnings,
or specifically by including this PIR code:
.include 'include/warnings.pasm' warningson .PARROT_WARNINGS_DEPRECATED_FLAG
AddrRegistry, CodeString, Env, Eval, File, OS, PCCMETHOD_Test, StringHandle, and Timer.
Parts or all of: bit.ops, debug.ops, io.ops, math.ops, obscure.ops, set.ops (the obscure and rarely used parts), sys.ops.
src/ops/experimental.ops
This will be removed once all core PMCs have been updated.
If you want to override a vtable method/function when building a Class, then use the method add_vtable_override instead of calling add_method with one or both of these flags.
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"
Class PMC name resolution will be the following.
if the arg is a STRING Relative to the current Namespace
if the arg is a Array (of any sort) or Key Relative to the current HLL Namespace
if the arg is a Namespace or Class PMC The passed in class or the class attatched to the passed in namespace.
.HLL_map [eligible in 1.1]Languages should use this instead:
$P0 = getinterp $P0.'hll_map'(TypeA, TypeB)
These two files were a thin prototype implementation of Polymorphic Inline Caching that only ever applied to 4 opcodes, one of which has now been removed. The files (and all functions in them) are deprecated, and will be removed.
:vtable/:method aren't in namespace [eligible in 1.1]Subs marked with :vtable or :method flags are no longer given a namespace entry by default. Use the :nsentry flag to cause this to happen.
They have been renamed to Parrot_pbc_read, Parrot_pbc_load. Parrot_pbc_read has one third int argument.
All C API functions that aren't currently named according to the 'Parrot_<system>_*' scheme will be renamed. If you depend on these functions in an extending/embedding interface or C-level custom PMCs, check in 1.4 or 2.0 for the new names.
The following functions will be changed to return a Hash* instead of taking a Hash** as an argument:
https://trac.parrot.org/parrot/ticket/447
Parrot_new_INTVAL_hash will also be rewritten to return a Hash* and will be renamed to parrot_new_intval_hash for consistency with other similar functions.
Will be renamed to Parrot_lib_add_path_from_cstring.
Stringification of protoobjects will return the full name of the type and parentheses, per Synopsis 12.
The following "built-in" PGE rules and methods are from previous versions of Synopsis 5.
Deprecated rules: null, fail, sp, lt, gt, dot
Deprecated methods: .text, .item, .result_object
PGE::Match objects will stringify or numify based on the text that is matched, not the result object.
The interface of various methods for adding, removing, and modifying the list stages in a PCT::HLLCompiler object is subject to change. The existing actual stages will remain; only the mechanism for specifying the order of individual stages is likely to change.
In order to facilitate using PCT::HLLCompiler with test harnesses, the command_line method of PCT::HLLCompiler object exits silently if it detects that it is being run in a sample run from Perl's Test::Harness. Currently this detection is done by checking the second command line argument for "@INC"; future releases may use a different detection mechanism or eliminate it altogether.
$(...) syntax [eligible in 1.5]The $(...) syntax for obtaining a result object from a Match object will no longer work. The new syntax is yet to be determined.
Replaced with makefiles.
