/
Ops.nqp
310 lines (307 loc) · 11.4 KB
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Ops.nqp
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# Registers ops so they're availabe to both NQP for Metamodel and Perl6
sub _register_op_with_nqp($name, $desugar) {
register_op_desugar($name, $desugar, :compiler<nqp>);
register_op_desugar($name, $desugar, :compiler<perl6>);
}
# Find the nearest caller from different package with CORE as its outer and returns its context
_register_op_with_nqp('p6clientctx', -> $qast {
my $ctx := QAST::Node.unique('ctx');
my $pkg := QAST::Node.unique('pkg');
QAST::Stmts.new(
QAST::Op.new(
:op<bind>,
QAST::Var.new( :name($ctx), :scope<local>, :decl<var> ),
QAST::Op.new( :op<ctx> )
),
QAST::Op.new(
:op<bind>,
QAST::Var.new( :name($pkg), :scope<local>, :decl<var> ),
QAST::Op.new( :op<getlex>, QAST::SVal.new( :value<$?PACKAGE> ) )
),
# Find first frame where CORE-SETTING-REV is visible. This is our first candidate for client context.
QAST::Op.new(
:op<while>,
QAST::Op.new(
:op<if>,
QAST::Op.new(
:op<isnull>,
QAST::Var.new( :name($ctx), :scope<local> )
),
QAST::IVal.new( :value(0) ),
QAST::Op.new(
:op<isnull>,
QAST::Op.new(
:op<getlexrel>,
QAST::Var.new( :name($ctx), :scope<local> ),
QAST::SVal.new( :value<CORE-SETTING-REV> )
)
)
),
QAST::Op.new(
:op<bind>,
QAST::Var.new( :name($ctx), :scope<local> ),
QAST::Op.new(
:op<ctxcallerskipthunks>,
QAST::Var.new( :name($ctx), :scope<local> ),
)
)
),
# Second, find a caller with different package
QAST::Op.new(
:op<while>,
QAST::Op.new(
:op<if>,
QAST::Op.new(
:op<isnull>,
QAST::Var.new( :name($ctx), :scope<local> )
),
QAST::IVal.new( :value(0) ),
QAST::Op.new(
:op<eqaddr>,
QAST::Op.new(
:op<getlexrel>,
QAST::Var.new( :name($ctx), :scope<local> ),
QAST::SVal.new( :value<$?PACKAGE> )
),
QAST::Var.new( :name($pkg), :scope<local> )
)
),
# repeat_until body
QAST::Op.new(
:op<bind>,
QAST::Var.new( :name($ctx), :scope<local> ),
QAST::Op.new( :op<ctxcallerskipthunks>, QAST::Var.new( :name($ctx), :scope<local> ) )
)
),
QAST::Var.new( :name($ctx), :scope<local> ),
)
});
# Finds client's CORE ctx. Note that it's not setting but the CORE itself.
_register_op_with_nqp('p6clientcorectx', -> $qast {
my $ctx := QAST::Node.unique('ctx');
QAST::Stmts.new(
QAST::Op.new(
:op<bind>,
QAST::Var.new( :name($ctx), :scope<local>, :decl<var> ),
QAST::Op.new( :op<p6clientctx> )
),
# Return VMNull unless $ctx is not null
QAST::Op.new(
:op<unless>,
QAST::Op.new(
:op<isnull>,
QAST::Var.new( :name($ctx), :scope<local> )
),
QAST::Stmts.new(
QAST::Op.new(
:op<until>,
QAST::Op.new(
:op<unless>,
QAST::Op.new(
:op<isnull>,
QAST::Var.new( :name($ctx), :scope<local> ),
),
QAST::Op.new(
:op<existskey>,
QAST::Op.new(
:op<ctxlexpad>,
QAST::Var.new( :name($ctx), :scope<local> )
),
QAST::SVal.new( :value<CORE-SETTING-REV> )
)
),
QAST::Op.new(
:op<bind>,
QAST::Var.new( :name($ctx), :scope<local> ),
QAST::Op.new( :op<ctxouterskipthunks>, QAST::Var.new( :name($ctx), :scope<local> ) )
)
),
QAST::Var.new( :name($ctx), :scope<local> ),
),
QAST::Op.new( :op<null> )
)
)
});
# Similar to p6clientcorectx but returns language revision letter
_register_op_with_nqp('p6clientcorerev', -> $qast {
my $ctx := QAST::Node.unique('ctx');
QAST::Stmts.new(
QAST::Op.new(
:op<bind>,
QAST::Var.new(
:name($ctx), :scope<local>, :decl<var>
),
QAST::Op.new( :op<p6clientcorectx> )
),
QAST::Op.new(
:op<unless>,
QAST::Op.new(
:op<isnull>,
QAST::Var.new( :name($ctx), :scope<local> )
),
QAST::Op.new(
:op<atkey>,
QAST::Op.new(
:op<ctxlexpad>,
QAST::Var.new( :name($ctx), :scope<local> )
),
QAST::SVal.new( :value<CORE-SETTING-REV> ),
),
QAST::Op.new( :op<null> )
)
)
});
# Simialr to p6clientcorectx but returns `6.<rev>` version string
_register_op_with_nqp('p6clientcorever', -> $qast {
my $ctx := QAST::Node.unique('ctx');
QAST::Stmts.new(
QAST::Op.new(
:op<bind>,
QAST::Var.new(
:name($ctx), :scope<local>, :decl<var>
),
QAST::Op.new( :op<p6clientcorectx> )
),
QAST::Op.new(
:op<unless>,
QAST::Op.new(
:op<isnull>,
QAST::Var.new( :name($ctx), :scope<local> )
),
QAST::Op.new(
:op<concat>,
QAST::SVal.new( :value<6.> ),
QAST::Op.new(
:op<atkey>,
QAST::Op.new(
:op<ctxlexpad>,
QAST::Var.new( :name($ctx), :scope<local> )
),
QAST::SVal.new( :value<CORE-SETTING-REV> ),
)
),
QAST::Op.new( :op<null> )
)
)
});
_register_op_with_nqp( 'p6getlexclient', -> $qast {
my $ctx := QAST::Node.unique('$ctx');
my $PseudoStash := QAST::Node.unique('$PseudoStash');
my $Map := QAST::Node.unique('$Map');
my $stash := QAST::Node.unique('$stash');
QAST::Op.new(
:op<if>,
QAST::Op.new(
:op<isconcrete>,
QAST::VarWithFallback.new(
:name<$*OPTIMIZER-SYMBOLS>,
:fallback(
QAST::WVal.new( :value(Mu) )
),
:scope<contextual>
)
),
QAST::Op.new(
:op<callmethod>,
QAST::Var.new( :name<$*OPTIMIZER-SYMBOLS>, :scope<contextual> ),
QAST::SVal.new( :value<find_symbol> ),
QAST::Op.new(
:op<split>,
QAST::SVal.new( :value<::> ),
$qast[0]
)
),
QAST::Op.new(
:op<if>,
QAST::Op.new(
:op<isconcrete>,
QAST::VarWithFallback.new(
:name<$*W>,
:fallback(
QAST::Op.new( :op<null> )
# QAST::WVal.new( :value(NQPMu) )
),
:scope<contextual>
)
),
QAST::Op.new(
:op<callmethod>,
QAST::Var.new( :name<$*W>, :scope<contextual> ),
QAST::SVal.new( :value<find_symbol> ),
QAST::Op.new(
:op<split>,
QAST::SVal.new( :value<::> ),
$qast[0]
)
),
QAST::Stmts.new(
QAST::Op.new(
:op<bind>,
QAST::Var.new( :name($ctx), :scope<local>, :decl<var> ),
QAST::Op.new( :op<p6clientctx> ),
),
QAST::Op.new(
:op<bind>,
QAST::Var.new( :name($PseudoStash), :scope<local>, :decl<var> ),
QAST::Op.new(
:op<getlexrel>,
QAST::Var.new( :name($ctx), :scope<local> ),
QAST::SVal.new( :value<PseudoStash> )
),
),
QAST::Op.new(
:op<bind>,
QAST::Var.new( :name($Map), :scope<local>, :decl<var> ),
QAST::Op.new(
:op<getlexrel>,
QAST::Var.new( :name($ctx), :scope<local> ),
QAST::SVal.new( :value<Map> )
),
),
QAST::Op.new(
:op<bind>,
QAST::Var.new( :name($stash), :scope<local>, :decl<var> ),
QAST::Op.new(
:op<create>,
QAST::Var.new( :name($PseudoStash), :scope<local> ),
)
),
QAST::Op.new(
:op<bindattr>,
QAST::Var.new( :name($stash), :scope<local> ),
QAST::Var.new( :name($Map), :scope<local> ),
QAST::SVal.new( :value<$!storage> ),
QAST::Op.new(
:op<ctxlexpad>,
QAST::Var.new( :name($ctx), :scope<local> ),
),
),
QAST::Op.new(
:op<bindattr>,
QAST::Var.new( :name($stash), :scope<local> ),
QAST::Var.new( :name($PseudoStash), :scope<local> ),
QAST::SVal.new( :value<$!ctx> ),
QAST::Var.new( :name($ctx), :scope<local> ),
),
QAST::Op.new(
:op<bindattr_i>,
QAST::Var.new( :name($stash), :scope<local> ),
QAST::Var.new( :name($PseudoStash), :scope<local> ),
QAST::SVal.new( :value<$!mode> ),
QAST::IVal.new( :value(1) ) # PseudoStash::STATIC_CHAIN constant value
),
QAST::Op.new(
:op<call>,
QAST::Op.new(
:op<getlexrel>,
QAST::Var.new( :name($ctx), :scope<local> ),
QAST::SVal.new( :value<&INDIRECT_NAME_LOOKUP> )
),
QAST::Var.new( :name($stash), :scope<local> ),
$qast[0]
)
),
),
)
}
);