/
setting
445 lines (382 loc) · 13.9 KB
/
setting
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# vim: ft=perl6
# XXX fakes out STD.pm6 into doing more or less the right thing
# need to understand this better
my class CORE { ... }
# We have to do this directly due to the circularity saw. Same
# reason forces uncontainerized .NET values.
#
# class ClassHOW {
# has DynMetaObject $.meta-object;
# }
#
# Due to concerns of screwing up composition, adding new superclasses, roles,
# or attributes in an augment is not allowed at this time. Methods only.
#
# to create a class:
# BEGIN my $Foo_HOW ::= ClassHOW.new("Foo");
# BEGIN my $Foo;
# BEGIN {
# $Foo_HOW.add-super(...);
# $Foo_HOW.add-role(...);
# $Foo_HOW.add-method("bar", anon method bar { ... });
# $Foo_HOW.compose;
# $Foo ::= $Foo_HOW.create-protoobject;
# }
#
# to augment:
# BEGIN { $Foo_HOW.add-method("baz", anon method baz { ... }); }
my class ClassHOW { ... }
PRE-INIT {
# ClassHOW.new($name) --> meta class instance
sub new { Q:CgOp {
(prog
(lextypes $mo DynMetaObject $self DynObject)
(l $mo (rawnew DynMetaObject (unwrap String (@ (pos 1)))))
(l $self (rawnew DynObject (getfield klass
(cast DynObject (@ (pos 0))))))
(setfield how (l $mo) (l $self))
(setindex meta-object (getfield slots (l $self))
(nsw (rawnew CLRImportObject (l $mo))))
(ns (l $self)))
} }
# $how.add-super($how)
sub add-super { Q:CgOp { (prog
(rawcall
(getfield superclasses (unwrap DynMetaObject
(getattr meta-object (@ (pos 0))))) Add
(unwrap DynMetaObject (getattr meta-object (@ (pos 1)))))
(null Variable))
} }
# $how.add-method($name, $sub)
sub add-method { Q:CgOp {
(prog
(setindex (unwrap String (@ (pos 1)))
(getfield local (unwrap DynMetaObject (getattr meta-object
(@ (pos 0)))))
(@ (pos 2)))
(null Variable))
} }
# $how.create-protoobject()
sub create-protoobject { Q:CgOp {
(prog
(lextypes $p DynObject $mo DynMetaObject)
(l $mo (unwrap DynMetaObject (getattr meta-object (@ (pos 0)))))
(l $p (rawnew DynObject (l $mo)))
(rawcall (l $mo) BuildC3MRO)
(setfield slots (l $p) (null Dictionary<string,object>))
(setfield typeObject (l $mo) (l $p))
(newscalar (l $p)))
} }
sub compose { Q:CgOp { (null Variable) } }
Q:CgOp {
(prog
(lextypes $chmo DynMetaObject $chch Variable)
(l $chmo (rawnew DynMetaObject (clr_string "ClassHOW")))
(l $chch (ns (rawnew DynObject (l $chmo))))
(setfield how (l $chmo) (@ (l $chch)))
(setindex meta-object (getfield slots (cast DynObject (@ (l $chch))))
(w (l $chmo)))
(sink (subcall (@ (l &add-method)) (l $chch)
(wrap (clr_string "new")) (l &new)))
(sink (subcall (@ (l &add-method)) (l $chch)
(wrap (clr_string "add-method")) (l &add-method)))
(sink (subcall (@ (l &add-method)) (l $chch)
(wrap (clr_string "add-super")) (l &add-super)))
(sink (subcall (@ (l &add-method)) (l $chch)
(wrap (clr_string "compose")) (l &compose)))
(sink (subcall (@ (l &add-method)) (l $chch)
(wrap (clr_string "create-protoobject")) (l &create-protoobject)))
(l ClassHOW (subcall (@ (l &create-protoobject)) (l $chch)))
(l ClassHOW!HOW (l $chch))
(null Variable))
}
}
# cannot be a normal class - it has no parents
my class Mu { ... }
my class Any { ... }
my class Cool { ... }
# these are really defined in the kernel
my class Scalar { ... }
my class Sub { ... }
PRE-INIT {
# (DynMetaObject $dmo, ClassHOW $super --> ClassHOW)
sub wrap-dpmo { Q:CgOp {
(prog
(lextypes $ch Variable $dm DynMetaObject)
(l $ch (methodcall (l ClassHOW) new (w (clr_string ""))))
(l $dm (unwrap DynMetaObject (@ (pos 0))))
(assign (varattr meta-object (@ (l $ch))) (w (l $dm)))
(setfield how (l $dm) (@ (l $ch)))
(sink (methodcall (l $ch) add-super (pos 1)))
(l $ch))
} }
Q:CgOp {
(prog
(lextypes !plist List<DynMetaObject>)
(l Mu!HOW (methodcall (l ClassHOW) new (w (clr_string Mu))))
(l Mu (methodcall (l Mu!HOW) create-protoobject))
(l Any!HOW (methodcall (l ClassHOW) new (w (clr_string Any))))
(sink (methodcall (l Any!HOW) add-super (l Mu!HOW)))
(l Any (methodcall (l Any!HOW) create-protoobject))
(l Cool!HOW (methodcall (l ClassHOW) new (w (clr_string Cool))))
(sink (methodcall (l Cool!HOW) add-super (l Any!HOW)))
(l Cool (methodcall (l Cool!HOW) create-protoobject))
(sink (methodcall (l ClassHOW!HOW) add-super (l Any!HOW)))
(rawcall (getfield klass (cast DynObject (@ (l ClassHOW)))) BuildC3MRO)
(l Sub!HOW (subcall (@ (l &wrap-dpmo))
(w (rawsget Kernel.SubMO)) (l Any!HOW)))
(l Sub (methodcall (l Sub!HOW) create-protoobject))
(l Scalar!HOW (subcall (@ (l &wrap-dpmo))
(w (rawsget Kernel.ScalarMO)) (l Any!HOW)))
(l Scalar (methodcall (l Scalar!HOW) create-protoobject))
(null Variable))
} }
my class Junction is Mu { }
my class Num {
method Str () { Q:CgOp {
(box Str (rawcall (unbox Double (fetch (scopedlex self))) ToString))
} }
method Bool() { Q:CgOp {
(box Bool (compare != (double 0)
(unbox Double (fetch (scopedlex self)))))
} }
method ACCEPTS($t) { self == $t }
}
my class Str {
method Str () { self }
method ACCEPTS($t) { self eq $t }
}
my class Blob { }
my class Char { }
my class CharLingua { }
my class AnyChar { }
my class Codepoint { }
my class Grapheme { }
my class StrPos { }
my class StrLen { }
my class Rat { }
my class FatRat { }
my class Complex { }
my class Int { }
my class UInt { }
my class Bit { }
my class Instant { }
my class Duration { }
my class Enum { }
my class Bool is Enum {
method Str() { if self { "Bool::True" } else { "Bool::False" } }
method Bool() { self }
method ACCEPTS($) { self }
}
# ought to take a slurpy
sub infix:<~>($l,$r) { Q:CgOp {
(box Str (rawscall String.Concat
(unbox String (fetch (methodcall (scopedlex $l) Str)))
(unbox String (fetch (methodcall (scopedlex $r) Str)))))
} }
sub infix:<+>($l,$r) { Q:CgOp {
(box Num (arith + (unbox Double (fetch (scopedlex $l)))
(unbox Double (fetch (scopedlex $r)))))
} }
sub infix:<->($l,$r) { Q:CgOp {
(box Num (arith - (unbox Double (fetch (scopedlex $l)))
(unbox Double (fetch (scopedlex $r)))))
} }
sub infix:<*>($l,$r) { Q:CgOp {
(box Num (arith * (unbox Double (fetch (scopedlex $l)))
(unbox Double (fetch (scopedlex $r)))))
} }
sub infix:</>($l,$r) { Q:CgOp {
(box Num (arith / (unbox Double (fetch (scopedlex $l)))
(unbox Double (fetch (scopedlex $r)))))
} }
sub infix:<< < >>($l,$r) { Q:CgOp {
(box Bool (compare < (unbox Double (fetch (scopedlex $l)))
(unbox Double (fetch (scopedlex $r)))))
} }
sub infix:<< > >>($l,$r) { Q:CgOp {
(box Bool (compare > (unbox Double (fetch (scopedlex $l)))
(unbox Double (fetch (scopedlex $r)))))
} }
sub infix:<< <= >>($l,$r) { Q:CgOp {
(box Bool (compare <= (unbox Double (fetch (scopedlex $l)))
(unbox Double (fetch (scopedlex $r)))))
} }
sub infix:<< >= >>($l,$r) { Q:CgOp {
(box Bool (compare >= (unbox Double (fetch (scopedlex $l)))
(unbox Double (fetch (scopedlex $r)))))
} }
sub infix:<< == >>($l,$r) { Q:CgOp {
(box Bool (compare == (unbox Double (fetch (scopedlex $l)))
(unbox Double (fetch (scopedlex $r)))))
} }
sub infix:<< != >>($l,$r) { Q:CgOp {
(box Bool (compare != (unbox Double (fetch (scopedlex $l)))
(unbox Double (fetch (scopedlex $r)))))
} }
sub say($str) { Q:CgOp {
(prog (rawscall Console.WriteLine
(unbox String (fetch (methodcall (scopedlex $str) Str))))
(box Bool (bool 1))
)
} }
sub infix:<=> { Q:CgOp { (prog (assign (pos 0) (pos 1)) (pos 0)) } }
# Buglet in STD: standard infix operators look custom inside the setting, and
# forget their precedence.
sub prefix:<-->($v) { $v = ($v - 1); $v }
sub prefix:<++>($v) { $v = ($v + 1); $v }
sub postfix:<-->($v) { my $old = $v; $v = ($v - 1); $old }
sub postfix:<++>($v) { my $old = $v; $v = ($v + 1); $old }
# actually a macro
# sub infix:<:=>($l,$r) { ... }
sub prefix:<~>($v) { $v.Str } # should be Stringy
sub prefix:<?>($v) { $v.Bool }
sub prefix:<!>($v) { if $v { ?0 } else { ?1 } }
sub infix:<eq>($l,$r) { Q:CgOp {
(box Bool (compare ==
(unbox String (fetch (methodcall (scopedlex $l) Str)))
(unbox String (fetch (methodcall (scopedlex $r) Str)))))
} }
sub infix:<ne>($l,$r) { Q:CgOp {
(box Bool (compare !=
(unbox String (fetch (methodcall (scopedlex $l) Str)))
(unbox String (fetch (methodcall (scopedlex $r) Str)))))
} }
# this one is horribly wrong and only handles the ref eq case.
sub infix:<===>($l,$r) { Q:CgOp {
(box Bool (compare == (fetch (scopedlex $l)) (fetch (scopedlex $r))))
} }
sub infix:<~~>($t,$m) {
if $m.defined {
$m.ACCEPTS($t)
} else {
$t.^does($m)
}
}
# XXX: We can't use augment syntax because we don't have use working, so
# no MONKEY_TYPING.
PRE-INIT {
Mu.HOW.add-method(Q:CgOp { (wrap (clr_string "defined")) },
anon method defined() {
Q:CgOp { (box Bool (!= (null Dictionary<string,object>)
(getfield slots (cast DynObject (@ (l self)))))) }
});
Mu.HOW.add-method(Q:CgOp { (w (clr_string "Bool")) },
anon method Bool() { self.defined });
Mu.HOW.add-method(Q:CgOp { (w (clr_string "Str")) },
anon method Str() {
my $tn := Q:CgOp {
(box Str (getfield name (getfield klass
(cast DynObject (fetch (scopedlex self))))))
};
if self.defined {
$tn ~ "()<instance>"
} else {
$tn ~ "()"
}
});
Mu.HOW.add-method(Q:CgOp { (w (clr_string "notdef")) },
anon method notdef() { ! self.defined });
Mu.HOW.add-method(Q:CgOp { (w (clr_string "so")) },
anon method notdef() { self.Bool });
Mu.HOW.add-method(Q:CgOp { (w (clr_string "not")) },
anon method notdef() { ! self.Bool });
Mu.HOW.add-method(Q:CgOp { (w (clr_string "RAWCREATE")) },
anon method RAWCREATE(*@fields) {
my $obj = Q:CgOp {
(ns (rawnew DynObject (getfield klass
(cast DynObject (@ (l self))))))
};
while @fields {
my $name = @fields.shift;
my $value = @fields.shift;
Q:CgOp {
(prog
(setindex (unbox String (@ (l $name)))
(getfield slots (cast DynObject (@ (l $obj))))
(l $value))
(null Variable))
};
}
$obj;
});
Any.HOW.add-method(Q:CgOp { (w (clr_string "ACCEPTS")) },
anon method ACCEPTS($t) { self === $t });
# Should be for Block, not Sub
Sub.HOW.add-method(Q:CgOp { (w (clr_string "ACCEPTS")) },
anon method ACCEPTS($t) { (self)($t) });
ClassHOW.HOW.add-method(Q:CgOp { (w (clr_string "isa")) },
anon method isa($obj, $type) { Q:CgOp {
(box Bool (rawcall (getfield klass (cast DynObject (@ (l $obj))))
HasMRO (getfield klass (cast DynObject (@ (l $type))))))
} });
ClassHOW.HOW.add-method(Q:CgOp { (w (clr_string "does")) },
anon method does($obj, $role) { self.isa($obj, $role) }); #no roles yet
}
# boxes a List<Variable>. SCHLIEMEL WAS HERE
my class LLArray {
method push($x) { Q:CgOp { (prog
(rawcall (unbox List<Variable> (@ (l self))) Add (l $x)) (l self)) } }
method shift() { Q:CgOp { (prog
(lextypes $f Variable $lv List<Variable>)
(l $lv (unbox List<Variable> (@ (l self))))
(l $f (getindex (int 0) (l $lv)))
(rawcall (l $lv) RemoveAt (int 0))
(l $f)) } }
method unshift($x) { Q:CgOp { (prog
(rawcall (unbox List<Variable> (@ (l self))) Insert (int 0) (l $x))
(l self)) } }
method first-flattens() { Q:CgOp {
(box Bool (getfield islist (getfield lv (getindex (int 0)
(unbox List<Variable> (@ (l self))))))) } }
method elems() { Q:CgOp {
(box Num (cast Double (getfield Count (unbox List<Variable>
(@ (l self)))))) } }
method Bool() { ?( self.elems ) }
}
my class Iterator {
# has $.valid
# has $.value
# has $.next
# subclasses must provide .validate
method valid() { $!valid }
method value() { $!value }
method next() { $!next }
}
my class EMPTY { }
my class List is Cool {
# low level, so not declared yet
# @!items @!rest $!flat
method fill($nr) {
my $i = $!items;
my $r = $!rest;
while $i.elems < $nr && $r {
if $!flat && $r.first-flattens {
$r.unshift($r.shift.iterator);
} else {
my $v := $r.shift;
if $v.^isa(EMPTY) {
# Discard summarily
} elsif $v.^isa(Iterator) {
if ! $v.valid {
$v.validate;
}
# we can't push anything onto items because it might be
# EMPTY
$r.unshift($v.value);
$r.unshift($v.next);
} else {
$i.push($v);
}
}
}
$i.elems >= $nr;
}
method Bool() { self.fill(1) }
method shift() {
self.fill(1);
$!items.shift;
}
method elems() { self.fill(1000_000_000); $!items.elems; }
}
{YOU_ARE_HERE}