/**
* Gets the class file corresponding to a given instance class. The <code>klass</code> must not
* yet be converted and it must not be a {@link Klass#isSynthetic() synthetic} class.
*
* @param klass the instance class for which a class file is requested
* @return the class file for <code>klass</code>
*/
ClassFile getClassFile(Klass klass) {
Assert.that(!klass.isSynthetic(), "synthethic class has no classfile");
String name = klass.getName();
ClassFile classFile = (ClassFile) classFiles.get(name);
if (classFile == null) {
classFile = new ClassFile(klass);
classFiles.put(name, classFile);
}
return classFile;
}
/** {@inheritDoc} */
public void load(Klass klass) {
Assert.that(VM.isHosted() || VM.getCurrentIsolate().getLeafSuite() == suite);
int state = klass.getState();
if (state < Klass.STATE_LOADED) {
if (klass.isArray()) {
load(klass.getComponentType());
} else {
lastClassNameStack.push(klass.getName());
ClassFile classFile = getClassFile(klass);
load(classFile);
lastClassNameStack.pop();
}
}
}
/**
* Generate squawk code for methods of <code>klass</code> when doing whole-suite translation
* (inlining, etc.)
*
* @param klass the klass to generate code for
*/
void convertPhase2(Klass klass) {
Assert.that(translationStrategy != BY_METHOD);
convert(klass);
if (klass.getState() < Klass.STATE_CONVERTED) {
if (!VM
.isVerbose()) { // "squawk -verbose" will show the class names as it finishes loading
// them, which is progress enough
traceProgress();
}
lastClassNameStack.push(klass.getName());
ClassFile classFile = getClassFile(klass);
classFile.convertPhase2(this, false);
classFiles.remove(klass.getName());
lastClassNameStack.pop();
}
}
/** {@inheritDoc} */
public void convert(Klass klass) {
lastClassNameStack.push(klass.getName());
int state = klass.getState();
if (state < Klass.STATE_CONVERTING) {
if (klass.isArray()) {
convert(Klass.OBJECT);
klass.changeState(Klass.STATE_CONVERTED);
} else {
traceProgress();
ClassFile classFile = getClassFile(klass);
classFile.convertPhase1(this, translationStrategy != BY_METHOD);
if (klass.hasGlobalStatics()) {
// record globals now.
recordGlobalStatics(klass);
}
if (translationStrategy == BY_METHOD || translationStrategy == BY_CLASS) {
// if NOT inlining, then generate squawk code now.
classFile.convertPhase2(this, translationStrategy == BY_METHOD);
classFiles.remove(klass.getName());
}
}
}
lastClassNameStack.pop();
}
/** Load and converts the closure of classes in the current suite. */
public void computeClosure() {
boolean changed = true;
while (changed) {
changed = false;
for (int cno = 0; cno < suite.getClassCount(); cno++) {
Klass klass = suite.getKlass(cno);
if (klass == null) {
continue; // if not floats, or if deferred errors, there can be some missing classes
}
if (klass.getState() < Klass.STATE_LOADED) {
load(klass);
changed = true;
}
if (klass.getState() < Klass.STATE_CONVERTING) {
convert(klass);
changed = true;
}
}
}
}
/**
* Like <code>klass</code> must not yet be converted and it must not be a {@link
* Klass#isSynthetic() synthetic} class.
*
* @param klass the instance class for which a class file is requested
* @return the class file for <code>klass</code>, or null if that ClassFile has not been
* translated by this translator.
*/
ClassFile lookupClassFile(Klass klass) {
Assert.that(!klass.isSynthetic(), "synthethic class has no classfile");
ClassFile classFile = (ClassFile) classFiles.get(klass.getInternalName());
return classFile;
}