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wasm gc: fix with passing JS objects to non-JS methods

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This commit is contained in:
Alexey Andreev 2024-10-23 18:34:56 +02:00
parent d29b436fa5
commit dff3e2f328
2 changed files with 35 additions and 6 deletions
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31
jso/impl/src/main/java/org/teavm/jso/impl/JSClassProcessor.java
View File

@ -324,7 +324,7 @@ class JSClassProcessor {
processConstructArray((ConstructArrayInstruction) insn);
} else if (insn instanceof ExitInstruction) {
var exit = (ExitInstruction) insn;
exit.setValueToReturn(wrapJsAsJava(insn, exit.getValueToReturn(),
exit.setValueToReturn(convertValue(insn, exit.getValueToReturn(),
methodToProcess.getResultType()));
} else if (insn instanceof ClassConstantInstruction) {
processClassConstant((ClassConstantInstruction) insn);
@ -399,7 +399,7 @@ class JSClassProcessor {
for (var i = 0; i < invoke.getArguments().size(); ++i) {
var type = invoke.getMethod().parameterType(i);
var arg = invoke.getArguments().get(i);
var newArg = wrapJsAsJava(invoke, arg, type);
var newArg = convertValue(invoke, arg, type);
if (newArg != arg) {
if (newArgs == null) {
newArgs = invoke.getArguments().toArray(new Variable[0]);
@ -412,12 +412,12 @@ class JSClassProcessor {
}
if (invoke.getInstance() != null) {
invoke.setInstance(wrapJsAsJava(invoke, invoke.getInstance(), ValueType.object(className)));
invoke.setInstance(convertValue(invoke, invoke.getInstance(), ValueType.object(className)));
}
}
private void processPutField(PutFieldInstruction putField) {
putField.setValue(wrapJsAsJava(putField, putField.getValue(), putField.getFieldType()));
putField.setValue(convertValue(putField, putField.getValue(), putField.getFieldType()));
}
private void processGetFromArray(GetElementInstruction insn) {
@ -772,16 +772,20 @@ class JSClassProcessor {
return null;
}
private Variable wrapJsAsJava(Instruction instruction, Variable var, ValueType type) {
private Variable convertValue(Instruction instruction, Variable var, ValueType type) {
if (!(type instanceof ValueType.Object)) {
return var;
}
var cls = ((ValueType.Object) type).getClassName();
if (typeHelper.isJavaScriptClass(cls)) {
return var;
return convertJavaValueToJs(instruction, var);
} else {
return convertJsValueToJava(instruction, var);
}
}
private Variable convertJsValueToJava(Instruction instruction, Variable var) {
var varType = types.typeOf(var);
if (varType != JSType.JS && varType != JSType.MIXED) {
return var;
@ -796,6 +800,21 @@ class JSClassProcessor {
return wrap.getReceiver();
}
private Variable convertJavaValueToJs(Instruction instruction, Variable var) {
var varType = types.typeOf(var);
if (varType == JSType.JS || varType == JSType.MIXED || varType == JSType.NULL) {
return var;
}
var wrap = new InvokeInstruction();
wrap.setType(InvocationType.SPECIAL);
wrap.setMethod(JSMethods.UNWRAP);
wrap.setArguments(var);
wrap.setReceiver(program.createVariable());
wrap.setLocation(instruction.getLocation());
instruction.insertPrevious(wrap);
return wrap.getReceiver();
}
private Variable unwrapJavaToJs(Instruction instruction, Variable var) {
var varType = types.typeOf(var);
if (varType != JSType.JAVA && varType != JSType.MIXED) {

10
tests/src/test/java/org/teavm/jso/test/ExportClassTest.java
View File

@ -47,6 +47,16 @@ public class ExportClassTest {
assertEquals("w", o.fooValue);
}
@Test
public void simpleClassExportedViaStaticHelper() {
assertEquals("(OK)", callNativeJSMethod(new SimpleClass()));
assertEquals("[OK]", callNativeJSMethod(new DerivedSimpleClass()));
}
private static String callNativeJSMethod(I a) {
return callIFromJs(a);
}
@JSBody(params = "a", script = "return a.foo('OK');")
private static native String callIFromJs(I a);