bind ... "class" "selector" – ... objects “bind”
Execute the method for selector in class.
<bind> class selector-xt – xt objects “<bind>”
xt is the method for the selector selector-xt in class.
bind' "class" "selector" – xt objects “bind”’
xt is the method for selector in class.
[bind] compile-time: "class" "selector" – ; run-time: ... object – ... objects “[bind]”
Compile the method for selector in class.
class parent-class – align offset objects “class”
Start a new class definition as a child of parent-class. align offset are for use by field etc.
class->map class – map objects “class->map”
map is the pointer to class’s method map; it points to the place in the map to which the selector offsets refer (i.e., where object-maps point to).
class-inst-size class – addr objects “class-inst-size”
Give the size specification for an instance (i.e. an object)
of class;
used as class-inst-size 2 ( class -- align size ).
class-override! xt sel-xt class-map – objects “class-override!”
xt is the new method for the selector sel-xt in class-map.
class-previous class – objects “class-previous”
Drop class’s wordlists from the search order. No checking is made whether class’s wordlists are actually on the search order.
class>order class – objects “class>order”
Add class’s wordlists to the head of the search-order.
construct ... object – objects “construct”
Initialize the data fields of object. The method for the
class object just does nothing: ( object -- ).
current' "selector" – xt objects “current”’
xt is the method for selector in the current class.
[current] compile-time: "selector" – ; run-time: ... object – ... objects “[current]”
Compile the method for selector in the current class.
current-interface – addr objects “current-interface”
Variable: contains the class or interface currently being defined.
dict-new ... class – object objects “dict-new”
allot and initialize an object of class class in
the dictionary.
end-class align offset "name" – objects “end-class”
name execution: -- class
End a class definition. The resulting class is class.
end-class-noname align offset – class objects “end-class-noname”
End a class definition. The resulting class is class.
end-interface "name" – objects “end-interface”
name execution: -- interface
End an interface definition. The resulting interface is
interface.
end-interface-noname – interface objects “end-interface-noname”
End an interface definition. The resulting interface is interface.
end-methods – objects “end-methods”
Switch back from defining methods of a class to normal mode (currently this just restores the old search order).
exitm – objects “exitm”
exit from a method; restore old this.
heap-new ... class – object objects “heap-new”
allocate and initialize an object of class class.
implementation interface – objects “implementation”
The current class implements interface. I.e., you can use all selectors of the interface in the current class and its descendents.
init-object ... class object – objects “init-object”
Initialize a chunk of memory (object) to an object of
class class; then performs construct.
inst-value align1 offset1 "name" – align2 offset2 objects “inst-value”
name execution: -- w
w is the value of the field name in this
object.
inst-var align1 offset1 align size "name" – align2 offset2 objects “inst-var”
name execution: -- addr
addr is the address of the field name in
this object.
interface – objects “interface”
Start an interface definition.
m: – xt colon-sys; run-time: object – objects “m:”
Start a method definition; object becomes new this.
:m "name" – xt; run-time: object – objects “:m”
Start a named method definition; object becomes new
this. Has to be ended with ;m.
;m colon-sys –; run-time: – objects “;m”
End a method definition; restore old this.
method xt "name" – objects “method”
name execution: ... object -- ...
Create selector name and makes xt its method in
the current class.
methods class – objects “methods”
Makes class the current class. This is intended to be used for defining methods to override selectors; you cannot define new fields or selectors.
object – class objects “object”
the ancestor of all classes.
overrides xt "selector" – objects “overrides”
replace default method for selector in the current class
with xt. overrides must not be used during an
interface definition.
[parent] compile-time: "selector" – ; run-time: ... object – ... objects “[parent]”
Compile the method for selector in the parent of the current class.
print object – objects “print”
Print the object. The method for the class object prints the address of the object and the address of its class.
protected – objects “protected”
Set the compilation wordlist to the current class’s wordlist
public – objects “public”
Restore the compilation wordlist that was in effect before the
last protected that actually changed the compilation
wordlist.
selector "name" – objects “selector”
name execution: ... object -- ...
Create selector name for the current class and its
descendents; you can set a method for the selector in the
current class with overrides.
this – object objects “this”
the receiving object of the current method (aka active object).
<to-inst> w xt – objects “<to-inst>”
store w into the field xt in this object.
[to-inst] compile-time: "name" – ; run-time: w – objects “[to-inst]”
store w into field name in this object.
to-this object – objects “to-this”
Set this (used internally, but useful when debugging).
xt-new ... class xt – object objects “xt-new”
Make a new object, using xt ( align size -- addr ) to
get memory.