AST
Você não pode selecionar mais de 25 tópicos Os tópicos devem começar com uma letra ou um número, podem incluir traços ('-') e podem ter até 35 caracteres.
 
 
 
 

96 linhas
1.5 KiB

var Object = { __name__: #"Object" };
print("Object is ", Object);
var Point = { __name__: #"Point", __proto__ : Object };
print("Point is ", Point);
Object.new = fun () {
print("ARGS are ", __arguments__);
var obj= { __proto__ : this };
var init= this.init;
print("INIT is ", init);
init && invoke(obj, init, __arguments__);
obj;
};
print("Object.new is ", Object.new);
print("Point.new is ", Point.new);
print("Object.new() is ", Object.new());
Point.init = fun (x, y) {
this.x = x;
this.y = y;
}
var p = Point.new(3, 4);
print("Point.new(3, 4) is ", p);
Object.clone = fun () { clone(this) }
var q = p.clone();
print("clone is ", q);
Object.println = fun () { this.print(); print('\n'); this; }
Object.print = fun () {
var proto= this.__proto__;
if (!proto) print(this);
else {
var name= proto.__name__;
if (!name) print(this);
else {
print(name, "{");
var keys= keys(this);
for (var i= 0; i < length(keys); ++i) {
var key= keys[i];
var val= this[key];
if (i) print(", ");
print(" ", key, ": ", val);
}
print(" }");
}
}
this;
}
p.println()
fun println() {
apply(print, __arguments__)
print("\n")
}
fun makeAst() {
print("Making an AST!")
return t
}
var t = `(3+4)
println(t)
var a = 333
syntax double(a) {
return `(@a+@a)
}
double(21)
syntax until(c, b) {
return `(while (!@c) @b)
}
var x = 0
/*
until(x==10) {
println(x++)
}
*/
(`x).println()