added stack tracking

This commit is contained in:
Parker TenBroeck 2025-04-28 14:58:59 -04:00
parent 61b1ca1c12
commit 21412f4670
5 changed files with 473 additions and 86 deletions

View file

@ -70,21 +70,34 @@ public class Examples {
// }
public static class Delay implements Future<String>{
private final int delay;
private final static Timer timer;
static{
timer = new Timer(true);
}
private int delay;
private boolean ready;
public Delay(int ms){
if(ms<0)throw new IllegalArgumentException("Delay cannot be negative");
delay = ms;
}
@Override
public Object poll(Waker waker) {
new Timer().schedule(new TimerTask() {
@Override
public void run() {
ready = true;
waker.wake();
}
}, delay);
public synchronized Object poll(Waker waker) {
if(delay==0){
ready=true;
delay=-1;
return null;
}
if(delay != -1){
timer.schedule(new TimerTask() {
@Override
public void run() {
ready = true;
waker.wake();
}
}, delay);
delay = -1;
}
if(ready)return null;
return Pending.INSTANCE;
}
@ -96,8 +109,21 @@ public class Examples {
}
public Future<String> awaitTest(int number){
var result = awaitTest2(number).await();
return Future.ret("Result: " + result);
try(var m = new Meow()){
var result = awaitTest2(number).await();
return Future.ret("Result: " + result);
}
}
public static class Meow implements AutoCloseable{
{
System.out.println("OPen");
}
@Override
public void close() {
System.out.println("Close");
}
}
// public static Gen<Double, Void> test(double[] nyas){

View file

@ -10,6 +10,8 @@ public interface Future<R> {
throw new RuntimeException("NO!");
}
default void cancel(){}
static <R> Future<R> ret(R r){
throw new RuntimeException("NO!");
}

View file

@ -104,10 +104,12 @@ public class GeneratorClassLoader extends ClassLoader {
var smb = new FutureSMBuilder(src_clm, src_mem, com);
try{
add(smb.CD_this.displayName(), smb.buildStateMachine());
}catch (Exception ignore){
}catch (Exception e){
e.printStackTrace();
cb.withMethod(src_mem.methodName(), src_mem.methodType(), src_mem.flags().flagsMask(), mb -> {
mb.with(com);
});
return smb;
}
cb.withMethod(src_mem.methodName(), src_mem.methodType(), src_mem.flags().flagsMask(), mb -> {
mb.withCode(smb::buildSourceMethodShim);

View file

@ -1,33 +1,235 @@
package generator.runtime;
import java.lang.classfile.*;
import java.lang.classfile.attribute.RuntimeInvisibleTypeAnnotationsAttribute;
import java.lang.classfile.attribute.RuntimeVisibleTypeAnnotationsAttribute;
import java.lang.classfile.attribute.StackMapFrameInfo;
import java.lang.classfile.attribute.StackMapTableAttribute;
import java.lang.classfile.instruction.*;
import java.lang.constant.ClassDesc;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Objects;
import static java.lang.classfile.attribute.StackMapFrameInfo.SimpleVerificationTypeInfo.TOP;
import static generator.runtime.StateMachineBuilder.LOCAL_PREFIX;
import static java.lang.constant.ConstantDescs.*;
public class LocalTracker {
record LocalStore(String name, ClassDesc cd) {
}
HashMap<Integer, ClassDesc> parameter_map = new HashMap<>();
private static final int ITEM_TOP = 0,
ITEM_INTEGER = 1,
ITEM_FLOAT = 2,
ITEM_DOUBLE = 3,
ITEM_LONG = 4,
ITEM_NULL = 5,
ITEM_UNINITIALIZED_THIS = 6,
ITEM_OBJECT = 7,
ITEM_UNINITIALIZED = 8,
ITEM_BOOLEAN = 9,
ITEM_BYTE = 10,
ITEM_SHORT = 11,
ITEM_CHAR = 12,
ITEM_LONG_2ND = 13,
ITEM_DOUBLE_2ND = 14;
HashMap<Integer, TypeKind> localVarTypes = new HashMap<>();
private static record Type(int tag, ClassDesc sym, int bci) {
//singleton types
static final Type TOP_TYPE = simpleType(ITEM_TOP),
NULL_TYPE = simpleType(ITEM_NULL),
INTEGER_TYPE = simpleType(ITEM_INTEGER),
FLOAT_TYPE = simpleType(ITEM_FLOAT),
LONG_TYPE = simpleType(ITEM_LONG),
LONG2_TYPE = simpleType(ITEM_LONG_2ND),
DOUBLE_TYPE = simpleType(ITEM_DOUBLE),
BOOLEAN_TYPE = simpleType(ITEM_BOOLEAN),
BYTE_TYPE = simpleType(ITEM_BYTE),
CHAR_TYPE = simpleType(ITEM_CHAR),
SHORT_TYPE = simpleType(ITEM_SHORT),
DOUBLE2_TYPE = simpleType(ITEM_DOUBLE_2ND),
UNITIALIZED_THIS_TYPE = simpleType(ITEM_UNINITIALIZED_THIS);
//frequently used types to reduce footprint
static final Type OBJECT_TYPE = referenceType(CD_Object),
THROWABLE_TYPE = referenceType(CD_Throwable),
INT_ARRAY_TYPE = referenceType(CD_int.arrayType()),
BOOLEAN_ARRAY_TYPE = referenceType(CD_boolean.arrayType()),
BYTE_ARRAY_TYPE = referenceType(CD_byte.arrayType()),
CHAR_ARRAY_TYPE = referenceType(CD_char.arrayType()),
SHORT_ARRAY_TYPE = referenceType(CD_short.arrayType()),
LONG_ARRAY_TYPE = referenceType(CD_long.arrayType()),
DOUBLE_ARRAY_TYPE = referenceType(CD_double.arrayType()),
FLOAT_ARRAY_TYPE = referenceType(CD_float.arrayType()),
STRING_TYPE = referenceType(CD_String),
CLASS_TYPE = referenceType(CD_Class),
METHOD_HANDLE_TYPE = referenceType(CD_MethodHandle),
METHOD_TYPE = referenceType(CD_MethodType);
@Override
public String toString(){
return switch(tag){
case ITEM_TOP -> "TOP";
case ITEM_INTEGER -> "int";
case ITEM_FLOAT -> "float";
case ITEM_DOUBLE -> "double";
case ITEM_LONG -> "long";
case ITEM_NULL -> sym==null?"null":"null("+sym.displayName()+")";
case ITEM_UNINITIALIZED_THIS -> sym==null?"uninitialized(this)":"uninitialized(this "+sym.displayName()+")";
case ITEM_OBJECT -> "Object("+sym.displayName()+")";
case ITEM_UNINITIALIZED -> sym==null?"uninitialized()":"uninitialized("+sym.displayName()+")";
case ITEM_BOOLEAN -> "boolean";
case ITEM_BYTE -> "byte";
case ITEM_SHORT -> "short";
case ITEM_CHAR -> "char";
case ITEM_LONG_2ND -> "float2";
case ITEM_DOUBLE_2ND -> "double2";
default -> throw new IllegalStateException("Unexpected value: " + tag);
};
}
private static Type simpleType(int tag) {
return new Type(tag, null, 0);
}
static Type referenceType(ClassDesc desc) {
return new Type(ITEM_OBJECT, desc, 0);
}
static Type uninitializedType(ClassDesc sym) {
return new Type(ITEM_UNINITIALIZED, sym, 0);
}
@Override //mandatory override to avoid use of method reference during JDK bootstrap
public boolean equals(Object o) {
return (o instanceof Type t) && t.tag == tag && t.bci == bci && Objects.equals(sym, t.sym);
}
boolean isCategory2_2nd() {
return this == DOUBLE2_TYPE || this == LONG2_TYPE;
}
boolean isReference() {
return tag == ITEM_OBJECT || this == NULL_TYPE;
}
boolean isObject() {
return tag == ITEM_OBJECT && sym.isClassOrInterface();
}
boolean isArray() {
return tag == ITEM_OBJECT && sym.isArray();
}
static Type verificationType(StackMapFrameInfo.VerificationTypeInfo v){
return switch (v){
case StackMapFrameInfo.ObjectVerificationTypeInfo o -> Type.referenceType(o.classSymbol());
case StackMapFrameInfo.SimpleVerificationTypeInfo s -> Type.simpleType(s.tag());
case StackMapFrameInfo.UninitializedVerificationTypeInfo u -> {
//Type.simpleType(u.tag());
throw new RuntimeException();
}
};
}
ClassDesc toCD(){
return switch (tag) {
case ITEM_BOOLEAN -> CD_boolean;
case ITEM_BYTE -> CD_byte;
case ITEM_CHAR -> CD_char;
case ITEM_SHORT -> CD_short;
case ITEM_INTEGER -> CD_int;
case ITEM_LONG -> CD_long;
case ITEM_FLOAT -> CD_float;
case ITEM_DOUBLE -> CD_double;
case ITEM_OBJECT -> sym;
default -> throw new RuntimeException();
};
}
Type toArray() {
return switch (tag) {
case ITEM_BOOLEAN -> BOOLEAN_ARRAY_TYPE;
case ITEM_BYTE -> BYTE_ARRAY_TYPE;
case ITEM_CHAR -> CHAR_ARRAY_TYPE;
case ITEM_SHORT -> SHORT_ARRAY_TYPE;
case ITEM_INTEGER -> INT_ARRAY_TYPE;
case ITEM_LONG -> LONG_ARRAY_TYPE;
case ITEM_FLOAT -> FLOAT_ARRAY_TYPE;
case ITEM_DOUBLE -> DOUBLE_ARRAY_TYPE;
case ITEM_OBJECT -> Type.referenceType(sym.arrayType());
default -> OBJECT_TYPE;
};
}
Type getComponent() {
if (isArray()) {
var comp = sym.componentType();
if (comp.isPrimitive()) {
return switch (comp.descriptorString().charAt(0)) {
case 'Z' -> Type.BOOLEAN_TYPE;
case 'B' -> Type.BYTE_TYPE;
case 'C' -> Type.CHAR_TYPE;
case 'S' -> Type.SHORT_TYPE;
case 'I' -> Type.INTEGER_TYPE;
case 'J' -> Type.LONG_TYPE;
case 'F' -> Type.FLOAT_TYPE;
case 'D' -> Type.DOUBLE_TYPE;
default -> Type.TOP_TYPE;
};
}
return Type.referenceType(comp);
}
return Type.TOP_TYPE;
}
}
final ArrayList<Type> stack = new ArrayList<>();
final ArrayList<Type> locals = new ArrayList<>();
// HashMap<Integer, TypeKind> localVarTypes = new HashMap<>();
// StackMapFrameInfo currentFrame;
HashMap<Integer, ClassDesc> parameter_map = new HashMap<>();
HashMap<Label, StackMapFrameInfo> stackMapFrames = new HashMap<>();
StackMapFrameInfo currentFrame;
ArrayList<LocalStore> localStore = new ArrayList<>();
final int local_param_off;
final StateMachineBuilder smb;
LocalTracker(StateMachineBuilder smb, CodeModel com, int local_param_off) {
this.local_param_off = local_param_off;
this.smb = smb;
int offset = 0;
for (var param : smb.params) {
parameter_map.put(offset, param);
if(param == CD_long){
setLocal2(offset, Type.DOUBLE_TYPE, Type.DOUBLE2_TYPE);
}else if(param == CD_double){
setLocal2(offset, Type.LONG_TYPE, Type.LONG2_TYPE);
}else if(!param.isPrimitive()){
setLocal(offset, Type.referenceType(param));
}else if(param == CD_float){
setLocal(offset, Type.FLOAT_TYPE);
}else if(param == CD_char){
setLocal(offset, Type.CHAR_TYPE);
}else if(param == CD_boolean){
setLocal(offset, Type.BOOLEAN_TYPE);
}else if(param == CD_byte){
setLocal(offset, Type.BYTE_TYPE);
}else if(param == CD_short){
setLocal(offset, Type.SHORT_TYPE);
}else{
setLocal(offset, Type.INTEGER_TYPE);
}
offset += TypeKind.from(param).slotSize();
}
@ -37,13 +239,215 @@ public class LocalTracker {
var locals = new ArrayList<>(smfi.locals());
for (int i = 0; i < smb.params.length; i++)
locals.removeFirst();
// locals.addFirst(StackMapFrameInfo.ObjectVerificationTypeInfo.of(smb.CD_this));
entries.add(StackMapFrameInfo.of(smfi.target(), locals, smfi.stack()));
stackMapFrames.put(smfi.target(), entries.getLast());
}
}
}
LocalTracker pushStack(ClassDesc desc) {
if (desc == CD_long) return pushStack(Type.LONG_TYPE, Type.LONG2_TYPE);
if (desc == CD_double) return pushStack(Type.DOUBLE_TYPE, Type.DOUBLE2_TYPE);
return desc == CD_void ? this
: pushStack(
desc.isPrimitive()
? (desc == CD_float ? Type.FLOAT_TYPE : Type.INTEGER_TYPE)
: Type.referenceType(desc));
}
LocalTracker pushStack(Type type) {
stack.add(type);
return this;
}
LocalTracker pushStack(Type type1, Type type2) {
stack.add(type1);
stack.add(type2);
return this;
}
Type popStack() {
return stack.removeLast();
}
LocalTracker decStack(int size) {
for(int i = 0; i < size; i ++)stack.removeLast();
return this;
}
void setLocal(int slot, Type type){
while(locals.size()<=slot)locals.add(null);
var old = locals.get(slot);
if(old == Type.DOUBLE_TYPE || old == Type.LONG_TYPE)
locals.set(slot+1, Type.TOP_TYPE);
if(old == Type.DOUBLE2_TYPE || old == Type.LONG2_TYPE)
locals.set(slot-1, Type.TOP_TYPE);
locals.set(slot, type);
}
void setLocal2(int slot, Type type1, Type type2){
while(locals.size()<=slot+1)locals.add(null);
var old = locals.get(slot+1);
if(old == Type.DOUBLE_TYPE || old == Type.LONG_TYPE)
locals.set(slot+2, Type.TOP_TYPE);
old = locals.get(slot);
if(old == Type.DOUBLE2_TYPE || old == Type.LONG2_TYPE)
locals.set(slot-1, Type.TOP_TYPE);
locals.set(slot, type1);
locals.set(slot+1, type2);
}
public void encounter(CodeElement ce){
switch(ce){
case Label l -> encounterLabel(l);
case Instruction ins -> {
switch (ins) {
case ArrayLoadInstruction al -> {
popStack();
var arr = popStack();
pushStack(arr.toCD().componentType());
}
case ArrayStoreInstruction as -> decStack(1 + as.typeKind().slotSize());
case BranchInstruction b when b.opcode() == Opcode.GOTO || b.opcode() == Opcode.GOTO_W -> {}
case BranchInstruction b -> popStack();
case ConstantInstruction c when ins.opcode() == Opcode.ACONST_NULL -> pushStack(Type.NULL_TYPE);
case ConstantInstruction c -> pushStack(c.typeKind().upperBound());
case ConvertInstruction c -> decStack(c.fromType().slotSize()).pushStack(c.toType().upperBound());
case FieldInstruction f -> {
}
case IncrementInstruction i -> {}
case InvokeDynamicInstruction i -> {
for(var param : i.typeSymbol().parameterArray())
decStack(TypeKind.from(param).slotSize());
pushStack(i.typeSymbol().returnType());
}
case InvokeInstruction i when i.opcode() == Opcode.INVOKESTATIC -> {
for(var param : i.typeSymbol().parameterArray())
decStack(TypeKind.from(param).slotSize());
pushStack(i.typeSymbol().returnType());
}
case InvokeInstruction i when i.opcode() == Opcode.INVOKESPECIAL && i.name().equalsString(INIT_NAME) -> {
for(var param : i.typeSymbol().parameterArray())
decStack(TypeKind.from(param).slotSize());
var ty = popStack();
}
case InvokeInstruction i -> {
for(var param : i.typeSymbol().parameterArray())
decStack(TypeKind.from(param).slotSize());
popStack();
pushStack(i.typeSymbol().returnType());
}
case LoadInstruction l when locals.size()<=l.slot()||locals.get(l.slot())==null ->
pushStack(l.typeKind().upperBound());
case LoadInstruction l ->
pushStack(locals.get(l.slot()).toCD());
case LookupSwitchInstruction ls -> popStack();
case MonitorInstruction m -> popStack();
case NewMultiArrayInstruction nma -> decStack(nma.dimensions()).pushStack(nma.arrayType().asSymbol());
case NewObjectInstruction no -> pushStack(no.className().asSymbol());
case NewPrimitiveArrayInstruction npa -> decStack(1).pushStack(npa.typeKind().upperBound().arrayType());
case NewReferenceArrayInstruction nra -> decStack(1).pushStack(nra.componentType().asSymbol());
case NopInstruction n -> {}
case OperatorInstruction o -> {
switch(o.opcode()){
case IADD, ISUB, IMUL, IDIV, IREM, ISHL, ISHR, IUSHR, IOR, IXOR, IAND ->
decStack(2).pushStack(Type.INTEGER_TYPE);
case INEG, ARRAYLENGTH, INSTANCEOF ->
decStack(1).pushStack(Type.INTEGER_TYPE);
case LADD, LSUB, LMUL, LDIV, LREM, LAND, LOR, LXOR ->
decStack(4).pushStack(Type.LONG_TYPE, Type.LONG2_TYPE);
case LNEG ->
decStack(2).pushStack(Type.LONG_TYPE, Type.LONG2_TYPE);
case LSHL, LSHR, LUSHR ->
decStack(3).pushStack(Type.LONG_TYPE, Type.LONG2_TYPE);
case FADD, FSUB, FMUL, FDIV, FREM ->
decStack(2).pushStack(Type.FLOAT_TYPE);
case FNEG ->
decStack(1).pushStack(Type.FLOAT_TYPE);
case DADD, DSUB, DMUL, DDIV, DREM ->
decStack(4).pushStack(Type.DOUBLE_TYPE, Type.DOUBLE2_TYPE);
case DNEG ->
decStack(2).pushStack(Type.DOUBLE_TYPE, Type.DOUBLE2_TYPE);
default -> throw new RuntimeException();
}
}
case StackInstruction s -> {
Type type1, type2, type3, type4;
switch(s.opcode()){
case POP ->
decStack(1);
case POP2 ->
decStack(2);
case DUP ->
pushStack(type1 = popStack()).pushStack(type1);
case DUP_X1 -> {
type1 = popStack();
type2 = popStack();
pushStack(type1).pushStack(type2).pushStack(type1);
}
case DUP_X2 -> {
type1 = popStack();
type2 = popStack();
type3 = popStack();
pushStack(type1).pushStack(type3).pushStack(type2).pushStack(type1);
}
case DUP2 -> {
type1 = popStack();
type2 = popStack();
pushStack(type2).pushStack(type1).pushStack(type2).pushStack(type1);
}
case DUP2_X1 -> {
type1 = popStack();
type2 = popStack();
type3 = popStack();
pushStack(type2).pushStack(type1).pushStack(type3).pushStack(type2).pushStack(type1);
}
case DUP2_X2 -> {
type1 = popStack();
type2 = popStack();
type3 = popStack();
type4 = popStack();
pushStack(type2).pushStack(type1).pushStack(type4).pushStack(type3).pushStack(type2).pushStack(type1);
}
case SWAP -> {
type1 = popStack();
type2 = popStack();
pushStack(type1);
pushStack(type2);
}
default -> throw new RuntimeException();
}
}
case ReturnInstruction r when r.typeKind()==TypeKind.VOID -> {}
case ReturnInstruction r -> decStack(r.typeKind().slotSize());
case StoreInstruction s when s.typeKind() == TypeKind.DOUBLE -> decStack(2).setLocal2(s.slot(), Type.DOUBLE_TYPE, Type.DOUBLE2_TYPE);
case StoreInstruction s when s.typeKind() == TypeKind.LONG -> decStack(2).setLocal2(s.slot(), Type.LONG_TYPE, Type.LONG2_TYPE);
case StoreInstruction s -> setLocal(s.slot(), popStack());
case TableSwitchInstruction ts -> popStack();
case ThrowInstruction t -> popStack();
case TypeCheckInstruction tc -> {}
case DiscontinuedInstruction d -> throw new IllegalStateException(d.toString());
default -> throw new IllegalStateException();
}
}
case PseudoInstruction _ -> {}
case RuntimeInvisibleTypeAnnotationsAttribute _ -> {}
case RuntimeVisibleTypeAnnotationsAttribute _ -> {}
case CustomAttribute<?> _ -> {}
case StackMapTableAttribute _ -> {}
}
if(ce instanceof Instruction)
System.out.println("loc: " + locals + " stack: " + stack);
}
//Tries its best to reuse old saved locals field slots, only reuses if types exactly match
public void savingLocals(ClassDesc cd, CodeBuilder cob, Runnable run) {
@ -51,19 +455,9 @@ public class LocalTracker {
}
var saved = new ArrayList<Saved>();
var lls = new ArrayList<>(localStore);
currentLocals((slot, tk, desc) -> {
String name = null;
for (int i = 0; i < lls.size(); i++)
if (lls.get(i).cd.equals(desc)) {
name = lls.get(i).name;
lls.remove(i);
break;
}
if (name == null) {
name = StateMachineBuilder.LOCAL_PREFIX + localStore.size();
localStore.add(new LocalStore(name, desc));
}
String name = LOCAL_PREFIX + localStore.size();
localStore.add(new LocalStore(name, desc));
saved.add(new Saved(slot, name, desc));
cob.aload(0).loadLocal(tk, slot).putfield(cd, name, desc);
});
@ -83,8 +477,12 @@ public class LocalTracker {
public void encounterLabel(Label l) {
var tmp = stackMapFrames.get(l);
if (tmp != null) {
localVarTypes.clear();
currentFrame = tmp;
stack.clear();
locals.clear();
for( var sl : tmp.stack())
pushStack(Type.verificationType(sl));
for( var local : tmp.locals())
locals.add(Type.verificationType(local));
}
}
@ -92,53 +490,17 @@ public class LocalTracker {
return parameter_map.get(slot);
}
public void trackLocal(int slot, TypeKind typeKind) {
localVarTypes.put(slot, typeKind);
}
public interface LocalConsumer {
void consume(int slot, TypeKind tk, ClassDesc desc);
}
public void currentLocals(LocalConsumer consumer) {
var slot = local_param_off;
if (currentFrame != null) {
for (var kind : currentFrame.locals()) {
switch (kind) {
case StackMapFrameInfo.ObjectVerificationTypeInfo o -> {
if (slot != 0)
consumer.consume(slot, o.className().typeKind(), o.classSymbol());
slot += 1;
}
case StackMapFrameInfo.SimpleVerificationTypeInfo ti -> {
if (kind == TOP) {
slot += 1;
if (localVarTypes.get(slot - 1) instanceof TypeKind tk) {
ClassDesc cd = tk.upperBound();
consumer.consume(slot - 1, tk, cd);
}
continue;
}
var type = switch (ti) {
case INTEGER -> TypeKind.INT;
case FLOAT -> TypeKind.FLOAT;
case DOUBLE -> TypeKind.DOUBLE;
case LONG -> TypeKind.LONG;
case NULL -> TypeKind.REFERENCE;
default -> throw new IllegalStateException();
};
consumer.consume(slot, type, type.upperBound());
slot += 1;
}
case StackMapFrameInfo.UninitializedVerificationTypeInfo _ -> throw new IllegalStateException();
}
}
}else{
for (var entry : localVarTypes.entrySet()) {
if (entry.getKey() < slot) continue;
ClassDesc cd = entry.getValue().upperBound();
consumer.consume(entry.getKey(), TypeKind.from(cd), cd);
}
int slot = 0;
for (var entry : locals) {
slot++;
if (slot <= local_param_off) continue;
if(entry.isCategory2_2nd())continue;
consumer.consume(slot - smb.paramSlotOff + local_param_off - 1, TypeKind.from(entry.toCD()), entry.toCD());
}
}

View file

@ -121,10 +121,6 @@ public abstract class StateMachineBuilder {
ctb -> ctb.catchingAll(
blc ->
blc.aload(0).loadConstant(-1).putfield(CD_this, STATE_NAME, ConstantDescs.CD_int)
.new_(ClassDesc.ofDescriptor(RuntimeException.class.descriptorString()))
.dup_x1()
.swap()
.invokespecial(ClassDesc.ofDescriptor(RuntimeException.class.descriptorString()), ConstantDescs.INIT_NAME, MethodTypeDesc.of(ConstantDescs.CD_void, ConstantDescs.CD_Throwable))
.athrow()
)
).aconst_null().areturn();
@ -133,6 +129,8 @@ public abstract class StateMachineBuilder {
public void buildStateMachineCode(ClassBuilder clb, CodeBuilder cob, int loc_param_off) {
boolean ignore_next_pop = false;
System.out.println();
System.out.println("Begin");
this.lt = new LocalTracker(this, src_com, loc_param_off);
var invalidState = cob.newLabel();
@ -172,9 +170,6 @@ public abstract class StateMachineBuilder {
}
}
}
if (coe instanceof Label l) {
lt.encounterLabel(l);
}
if (coe instanceof InvokeInstruction is){
if(smmap.get(new SpecialMethod(is.owner().asSymbol(), is.name().stringValue(), is.typeSymbol())) != null){
if(currentHandler!=null)throw new RuntimeException("Multiple method handlers at once not supported");
@ -189,7 +184,9 @@ public abstract class StateMachineBuilder {
continue;
}
}
if(coe instanceof LocalVariable lv) System.out.println(lv);
lt.encounter(coe);
switch (coe) {
// locals which were once function parameters can be ignored
@ -216,10 +213,8 @@ public abstract class StateMachineBuilder {
cob.aload(0).dup_x2().pop().putfield(CD_this, PARAM_PREFIX + ls.slot(), lt.paramType(ls.slot()));
case StoreInstruction ls when ls.slot() < paramSlotOff ->
cob.aload(0).swap().putfield(CD_this, PARAM_PREFIX + ls.slot(), lt.paramType(ls.slot()));
case StoreInstruction ls -> {
lt.trackLocal(ls.slot() - paramSlotOff + loc_param_off, ls.typeKind());
cob.storeLocal(ls.typeKind(), ls.slot() - paramSlotOff + loc_param_off);
}
case StoreInstruction ls ->
cob.storeLocal(ls.typeKind(), ls.slot() - paramSlotOff + loc_param_off);
default -> cob.with(coe);
}