public static void main(String[] args) throws Exception {
// creates the expression tree corresponding to
// exp(i) = i > 3 && 6 > i
Exp exp = new And(new GT(new Var(0), new Cst(3)), new GT(new Cst(6), new Var(0)));
// compiles this expression into an Expression class
Compile main = new Compile();
byte[] b = exp.compile("Example");
FileOutputStream fos = new FileOutputStream("Example.class");
fos.write(b);
fos.close();
Class expClass = main.defineClass("Example", b, 0, b.length);
// instantiates this compiled expression class...
Expression iexp = (Expression) expClass.newInstance();
// ... and uses it to evaluate exp(0) to exp(9)
for (int i = 0; i < 10; ++i) {
boolean val = iexp.eval(i, 0) == 1;
System.out.println(i + " > 3 && " + i + " < 6 = " + val);
}
}
@Test
public void testCompile() throws Exception {
Compilation compilation =
Compile.compile(
IO.load("test1.java"),
IO.load("mixin.java"),
"public class Book { String title; int x = 1234; } class Foo {}",
"public class Bar extends Foo {}",
"public class Fg extends Foo {}");
Set<Class<?>> classes = compilation.loadClasses();
eq(classes.size(), 10);
Set<String> classNames = compilation.getClassNames();
D.print(classNames);
eq(Cls.classMap(classes).get("Main").getAnnotations().length, 2);
Set<String> expectedClasses =
U.set(
"abc.Main",
"abc.Main$1",
"abc.Person",
"abc.Person$Insider",
"abc.PersonService",
"Book",
"Foo",
"Bar",
"Fg",
"mixo.Mixin");
eq(classNames, expectedClasses);
for (String clsName : expectedClasses) {
Class<?> cls = compilation.loadClass(clsName);
notNull(cls);
eq(cls.getName(), clsName);
}
Class<?> mainClass = compilation.loadClass("abc.Main");
Method main = Cls.getMethod(mainClass, "main", String[].class);
Cls.invoke(main, null, new Object[] {new String[] {}});
}