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C backend: bug fixes and interop improvements

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This commit is contained in:
Alexey Andreev 2019-04-19 18:41:02 +03:00
parent cfd6b64899
commit 2a6ca2d0d8
6 changed files with 137 additions and 11 deletions
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7
core/src/main/java/org/teavm/backend/c/CTarget.java
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@ -346,7 +346,9 @@ public class CTarget implements TeaVMTarget, TeaVMCHost {
for (String className : classNames) {
ClassHolder cls = classes.get(className);
classGenerator.generateClass(cls);
if (cls != null) {
classGenerator.generateClass(cls);
}
}
classGenerator.generateRemainingData(classNames, shadowStackTransformer);
@ -369,8 +371,7 @@ public class CTarget implements TeaVMTarget, TeaVMCHost {
if (parent == null) {
parent = RuntimeObject.class.getName();
}
if (!parent.equals(Structure.class.getName())
&& stateMap.getOrDefault(cls.getParent(), (byte) 0) == 0) {
if (!parent.equals(Structure.class.getName()) && stateMap.getOrDefault(parent, (byte) 0) == 0) {
stack.push(parent);
}
break;

3
core/src/main/java/org/teavm/backend/c/generate/ClassGenerator.java
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@ -491,6 +491,9 @@ public class ClassGenerator {
}
private void generateVirtualTableStructure(ClassReader cls) {
if (cls == null) {
return;
}
String name = context.getNames().forClassClass(cls.getName());
vtableStructuresWriter.print("typedef struct ").print(name).println(" {").indent();

44
core/src/main/java/org/teavm/backend/c/generate/CodeGenerationVisitor.java
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@ -60,9 +60,11 @@ import org.teavm.backend.c.intrinsic.IntrinsicContext;
import org.teavm.diagnostics.Diagnostics;
import org.teavm.interop.Address;
import org.teavm.interop.c.Include;
import org.teavm.interop.c.Variable;
import org.teavm.model.AnnotationContainerReader;
import org.teavm.model.AnnotationReader;
import org.teavm.model.AnnotationValue;
import org.teavm.model.CallLocation;
import org.teavm.model.ClassReader;
import org.teavm.model.ElementModifier;
import org.teavm.model.FieldReference;
@ -469,6 +471,7 @@ public class CodeGenerationVisitor implements ExprVisitor, StatementVisitor {
for (int i = 0; i < expr.getArguments().size(); ++i) {
temporaries.add(allocTemporaryVariable(CVariableType.PTR));
}
boolean stringResult = method.getResultType().isObject(String.class);
writer.print("(");
for (int i = 0; i < expr.getArguments().size(); ++i) {
@ -482,6 +485,10 @@ public class CodeGenerationVisitor implements ExprVisitor, StatementVisitor {
expr.getArguments().get(i).acceptVisitor(this);
writer.print(")");
stringTemporaries.add(tmp);
} else if (isPrimitiveArray(type)) {
writer.print("ARRAY_DATA(");
expr.getArguments().get(i).acceptVisitor(this);
writer.print(", ").printStrictType(((ValueType.Array) type).getItemType()).print(")");
} else {
expr.getArguments().get(i).acceptVisitor(this);
}
@ -492,28 +499,49 @@ public class CodeGenerationVisitor implements ExprVisitor, StatementVisitor {
if (resultTmp != null) {
writer.print(resultTmp + " = ");
}
writer.print(names.forMethod(method.getReference())).print("(");
for (int i = 0; i < temporaries.size(); ++i) {
if (i > 0) {
writer.print(", ");
writer.print(names.forMethod(method.getReference()));
if (method.getAnnotations().get(Variable.class.getName()) == null) {
writer.print("(");
for (int i = 0; i < temporaries.size(); ++i) {
if (i > 0) {
writer.print(", ");
}
writer.print(temporaries.get(i));
freeTemporaryVariable(CVariableType.PTR);
}
writer.print(temporaries.get(i));
freeTemporaryVariable(CVariableType.PTR);
writer.print(")");
} else if (method.parameterCount() > 0 || method.getResultType() == ValueType.VOID) {
context.getDiagnostics().error(new CallLocation(method.getReference()),
"'@Variable' annotation is not applicable to method {{m0}}", method.getReference());
}
writer.print(")");
for (String tmp : stringTemporaries) {
writer.print(", teavm_free(" + tmp + ")");
}
if (resultTmp != null) {
writer.print(", " + resultTmp);
writer.print(", ");
if (stringResult) {
writer.print("teavm_cToString(");
}
writer.print(resultTmp);
if (stringResult) {
writer.print(")");
}
freeTemporaryVariable(typeToCType(method.getResultType()));
}
writer.print(")");
}
private static boolean isPrimitiveArray(ValueType type) {
if (!(type instanceof ValueType.Array)) {
return false;
}
return ((ValueType.Array) type).getItemType() instanceof ValueType.Primitive;
}
private boolean isWrappedNativeCall(MethodReader method) {
if (!method.hasModifier(ElementModifier.NATIVE)) {
return false;

43
core/src/main/java/org/teavm/backend/c/intrinsic/StringsIntrinsic.java Normal file
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@ -0,0 +1,43 @@
/*
* Copyright 2019 Alexey Andreev.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.teavm.backend.c.intrinsic;
import org.teavm.ast.InvocationExpr;
import org.teavm.interop.Strings;
import org.teavm.model.MethodReference;
public class StringsIntrinsic implements Intrinsic {
@Override
public boolean canHandle(MethodReference method) {
return method.getClassName().equals(Strings.class.getName());
}
@Override
public void apply(IntrinsicContext context, InvocationExpr invocation) {
switch (invocation.getMethod().getName()) {
case "toC":
context.writer().print("teavm_stringToC(");
context.emit(invocation.getArguments().get(0));
context.writer().print(")");
break;
case "fromC":
context.writer().print("teavm_cToString(");
context.emit(invocation.getArguments().get(0));
context.writer().print(")");
break;
}
}
}

25
interop/core/src/main/java/org/teavm/interop/Strings.java Normal file
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@ -0,0 +1,25 @@
/*
* Copyright 2019 Alexey Andreev.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.teavm.interop;
public final class Strings {
private Strings() {
}
public static native Address toC(String javaString);
public static native String fromC(Address cString);
}

26
interop/core/src/main/java/org/teavm/interop/c/Variable.java Normal file
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@ -0,0 +1,26 @@
/*
* Copyright 2019 Alexey Andreev.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.teavm.interop.c;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface Variable {
}