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so many small issues all at once

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Parker TenBroeck 2025-04-28 23:36:07 -04:00
parent 21412f4670
commit b0d6737b07
8 changed files with 167 additions and 57 deletions
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23
src/generator/runtime/future/FutureSMBuilder.java
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@ -24,6 +24,8 @@ public class FutureSMBuilder extends StateMachineBuilder {
public final static MethodTypeDesc MTD_Object_Waker = MethodTypeDesc.of(ConstantDescs.CD_Object, CD_Waker);
public final static MethodTypeDesc MTD_Obj = MethodTypeDesc.of(ConstantDescs.CD_Object);
public final static String AWAITING_FIELD_NAME = "awaiting";
static class AwaitHandler implements SpecialMethodHandler{
final int yield_state;
final Label yield_label;
@ -36,18 +38,19 @@ public class FutureSMBuilder extends StateMachineBuilder {
@Override
public void handle(StateMachineBuilder smb, CodeBuilder cob) {
System.out.println("Await");
cob.aload(0).loadConstant(yield_state).putfield(smb.CD_this, STATE_NAME, TypeKind.INT.upperBound());
var start = cob.newBoundLabel();
cob.dup().dup()
.aload(1)
.invokeinterface(CD_Future, "poll", MTD_Object_Waker).dup()
cob.dup()
.aload(1).invokeinterface(CD_Future, "poll", MTD_Object_Waker).dup()
.instanceOf(CD_Pending);
cob.ifThenElse(bcb -> {
bcb.swap().aload(0).swap().putfield(smb.CD_this, AWAITING_FIELD_NAME, CD_Future);
smb.lt.savingLocals(smb.CD_this, bcb, () -> {
bcb.swap().aload(0).swap().putfield(smb.CD_this, "meow", CD_Future);
bcb.areturn().labelBinding(yield_label);
bcb.aload(0).getfield(smb.CD_this, "meow", CD_Future);
});
bcb.aload(0).getfield(smb.CD_this, AWAITING_FIELD_NAME, CD_Future);
bcb.aload(0).aconst_null().putfield(smb.CD_this, AWAITING_FIELD_NAME, CD_Future);
bcb.goto_(start);
}, bcb -> {
bcb.swap().pop();
@ -86,6 +89,7 @@ public class FutureSMBuilder extends StateMachineBuilder {
@Override
public void handle(StateMachineBuilder smb, CodeBuilder cob) {
System.out.println("Return");
cob.aload(0).loadConstant(-1).putfield(smb.CD_this, STATE_NAME, TypeKind.INT.upperBound()).areturn();
}
}
@ -102,7 +106,14 @@ public class FutureSMBuilder extends StateMachineBuilder {
cob.localVariable(1, "waker", CD_Waker, cob.startLabel(), cob.endLabel());
buildStateMachineMethodCode(clb, cob, 2);
}));
clb.withField("meow", CD_Future, ClassFile.ACC_PRIVATE);
clb.withMethod("cancel", MethodTypeDesc.of(ConstantDescs.CD_void), ClassFile.ACC_PUBLIC, mb -> mb.withCode(cob -> {
cob.aload(0).getfield(CD_this, AWAITING_FIELD_NAME, CD_Future).dup().ifThen(Opcode.IFNONNULL, boc -> {
boc.invokeinterface(CD_Future, "cancel", MethodTypeDesc.of(ConstantDescs.CD_void))
.aload(0).aconst_null().putfield(CD_this, AWAITING_FIELD_NAME, CD_Future).return_();
});
cob.pop().return_();
}));
clb.withField(AWAITING_FIELD_NAME, CD_Future, ClassFile.ACC_PRIVATE);
}
public FutureSMBuilder(ClassModel src_clm, MethodModel src_mem, CodeModel src_com) {