Examples with PackedStructureConstantBuilder org.robovm.compiler.llvm.PackedStructureConstantBuilder used on opensource projects

Example 1 with PackedStructureConstantBuilder

use of org.robovm.compiler.llvm.PackedStructureConstantBuilder in project robovm by robovm.

the class ClassCompiler method createClassInfoStruct.

private StructureConstant createClassInfoStruct() {
    int flags = 0;
    if (Modifier.isPublic(sootClass.getModifiers())) {
        flags |= CI_PUBLIC;
    }
    if (Modifier.isFinal(sootClass.getModifiers())) {
        flags |= CI_FINAL;
    }
    if (Modifier.isInterface(sootClass.getModifiers())) {
        flags |= CI_INTERFACE;
    }
    if (Modifier.isAbstract(sootClass.getModifiers())) {
        flags |= CI_ABSTRACT;
    }
    if ((sootClass.getModifiers() & 0x1000) > 0) {
        flags |= CI_SYNTHETIC;
    }
    if (Modifier.isAnnotation(sootClass.getModifiers())) {
        flags |= CI_ANNOTATION;
    }
    if (Modifier.isEnum(sootClass.getModifiers())) {
        flags |= CI_ENUM;
    }
    if (attributesEncoder.classHasAttributes()) {
        flags |= CI_ATTRIBUTES;
    }
    if (hasFinalizer(sootClass)) {
        flags |= CI_FINALIZABLE;
    }
    // Create the ClassInfoHeader structure.
    StructureConstantBuilder header = new StructureConstantBuilder();
    // Points to the runtime Class struct
    header.add(new NullConstant(I8_PTR));
    header.add(new IntegerConstant(flags));
    header.add(getString(getInternalName(sootClass)));
    if (sootClass.declaresMethod("<clinit>", Collections.emptyList(), VoidType.v())) {
        SootMethod method = sootClass.getMethod("<clinit>", Collections.emptyList(), VoidType.v());
        header.add(new FunctionRef(Symbols.methodSymbol(method), getFunctionType(method)));
    } else {
        header.add(new NullConstant(I8_PTR));
    }
    mb.addGlobal(new Global(Symbols.typeInfoSymbol(getInternalName(sootClass)), Linkage.external, I8_PTR, true));
    // TypeInfo* generated by Linker
    header.add(new GlobalRef(Symbols.typeInfoSymbol(getInternalName(sootClass)), I8_PTR));
    if (!sootClass.isInterface()) {
        header.add(createVTableStruct());
    } else {
        header.add(createITableStruct());
    }
    header.add(createITablesStruct());
    header.add(sizeof(classType));
    header.add(sizeof(instanceType));
    if (!instanceFields.isEmpty()) {
        header.add(offsetof(instanceType, 1, 1));
    } else {
        header.add(sizeof(instanceType));
    }
    header.add(new IntegerConstant((short) countReferences(classFields)));
    header.add(new IntegerConstant((short) countReferences(instanceFields)));
    PackedStructureConstantBuilder body = new PackedStructureConstantBuilder();
    body.add(new IntegerConstant((short) sootClass.getInterfaceCount()));
    body.add(new IntegerConstant((short) sootClass.getFieldCount()));
    body.add(new IntegerConstant((short) sootClass.getMethodCount()));
    if (!sootClass.isInterface()) {
        body.add(getStringOrNull(sootClass.hasSuperclass() ? getInternalName(sootClass.getSuperclass()) : null));
    }
    if (attributesEncoder.classHasAttributes()) {
        body.add(new ConstantBitcast(attributesEncoder.getClassAttributes().ref(), I8_PTR));
    }
    for (SootClass s : sootClass.getInterfaces()) {
        body.add(getString(getInternalName(s)));
    }
    for (SootField f : sootClass.getFields()) {
        flags = 0;
        soot.Type t = f.getType();
        if (t instanceof PrimType) {
            if (t.equals(BooleanType.v())) {
                flags |= DESC_Z;
            } else if (t.equals(ByteType.v())) {
                flags |= DESC_B;
            } else if (t.equals(ShortType.v())) {
                flags |= DESC_S;
            } else if (t.equals(CharType.v())) {
                flags |= DESC_C;
            } else if (t.equals(IntType.v())) {
                flags |= DESC_I;
            } else if (t.equals(LongType.v())) {
                flags |= DESC_J;
            } else if (t.equals(FloatType.v())) {
                flags |= DESC_F;
            } else if (t.equals(DoubleType.v())) {
                flags |= DESC_D;
            }
            flags <<= 12;
        }
        if (Modifier.isPublic(f.getModifiers())) {
            flags |= FI_PUBLIC;
        } else if (Modifier.isPrivate(f.getModifiers())) {
            flags |= FI_PRIVATE;
        } else if (Modifier.isProtected(f.getModifiers())) {
            flags |= FI_PROTECTED;
        }
        if (Modifier.isStatic(f.getModifiers())) {
            flags |= FI_STATIC;
        }
        if (Modifier.isFinal(f.getModifiers())) {
            flags |= FI_FINAL;
        }
        if (Modifier.isVolatile(f.getModifiers())) {
            flags |= FI_VOLATILE;
        }
        if (Modifier.isTransient(f.getModifiers())) {
            flags |= FI_TRANSIENT;
        }
        if ((f.getModifiers() & 0x1000) > 0) {
            flags |= FI_SYNTHETIC;
        }
        if (Modifier.isEnum(f.getModifiers())) {
            flags |= FI_ENUM;
        }
        if (attributesEncoder.fieldHasAttributes(f)) {
            flags |= FI_ATTRIBUTES;
        }
        body.add(new IntegerConstant((short) flags));
        body.add(getString(f.getName()));
        if (!(t instanceof PrimType)) {
            body.add(getString(getDescriptor(f)));
        }
        if (f.isStatic()) {
            int index = classFields.indexOf(f);
            body.add(offsetof(classType, 1, index, 1));
        } else {
            int index = instanceFields.indexOf(f);
            body.add(offsetof(instanceType, 1, 1 + index, 1));
        }
        if (attributesEncoder.fieldHasAttributes(f)) {
            body.add(new ConstantBitcast(attributesEncoder.getFieldAttributes(f).ref(), I8_PTR));
        }
    }
    VTable vtable = !sootClass.isInterface() ? config.getVTableCache().get(sootClass) : null;
    ITable itable = sootClass.isInterface() ? config.getITableCache().get(sootClass) : null;
    ;
    for (SootMethod m : sootClass.getMethods()) {
        soot.Type t = m.getReturnType();
        flags = 0;
        if (Modifier.isPublic(m.getModifiers())) {
            flags |= MI_PUBLIC;
        } else if (Modifier.isPrivate(m.getModifiers())) {
            flags |= MI_PRIVATE;
        } else if (Modifier.isProtected(m.getModifiers())) {
            flags |= MI_PROTECTED;
        }
        if (Modifier.isStatic(m.getModifiers())) {
            flags |= MI_STATIC;
        }
        if (Modifier.isFinal(m.getModifiers())) {
            flags |= MI_FINAL;
        }
        if (Modifier.isSynchronized(m.getModifiers())) {
            flags |= MI_SYNCHRONIZED;
        }
        if ((m.getModifiers() & 0x0040) > 0) {
            flags |= MI_BRIDGE;
        }
        if ((m.getModifiers() & 0x0080) > 0) {
            flags |= MI_VARARGS;
        }
        if (Modifier.isNative(m.getModifiers())) {
            if (!isStruct(sootClass) && !hasStructMemberAnnotation(m)) {
                flags |= MI_NATIVE;
            }
        }
        if (Modifier.isAbstract(m.getModifiers())) {
            flags |= MI_ABSTRACT;
        }
        if (Modifier.isStrictFP(m.getModifiers())) {
            flags |= MI_STRICT;
        }
        if ((m.getModifiers() & 0x1000) > 0) {
            flags |= MI_SYNTHETIC;
        }
        if (attributesEncoder.methodHasAttributes(m)) {
            flags |= MI_ATTRIBUTES;
        }
        if (hasBridgeAnnotation(m) || hasGlobalValueAnnotation(m)) {
            flags |= MI_BRO_BRIDGE;
        }
        if (hasCallbackAnnotation(m)) {
            flags |= MI_BRO_CALLBACK;
        }
        if ((t instanceof PrimType || t == VoidType.v()) && m.getParameterCount() == 0) {
            flags |= MI_COMPACT_DESC;
        }
        body.add(new IntegerConstant((short) flags));
        Constant viTableIndex = new IntegerConstant((short) -1);
        if (vtable != null) {
            VTable.Entry entry = vtable.getEntry(m);
            if (entry != null) {
                viTableIndex = new IntegerConstant((short) entry.getIndex());
            }
        } else {
            ITable.Entry entry = itable.getEntry(m);
            if (entry != null) {
                viTableIndex = new IntegerConstant((short) entry.getIndex());
            }
        }
        body.add(viTableIndex);
        body.add(getString(m.getName()));
        if ((flags & MI_COMPACT_DESC) > 0) {
            int desc = 0;
            if (t.equals(BooleanType.v())) {
                desc = DESC_Z;
            } else if (t.equals(ByteType.v())) {
                desc = DESC_B;
            } else if (t.equals(ShortType.v())) {
                desc = DESC_S;
            } else if (t.equals(CharType.v())) {
                desc = DESC_C;
            } else if (t.equals(IntType.v())) {
                desc = DESC_I;
            } else if (t.equals(LongType.v())) {
                desc = DESC_J;
            } else if (t.equals(FloatType.v())) {
                desc = DESC_F;
            } else if (t.equals(DoubleType.v())) {
                desc = DESC_D;
            } else if (t.equals(VoidType.v())) {
                desc = DESC_V;
            }
            body.add(new IntegerConstant((byte) desc));
        } else {
            body.add(getString(getDescriptor(m)));
        }
        if (attributesEncoder.methodHasAttributes(m)) {
            body.add(new ConstantBitcast(attributesEncoder.getMethodAttributes(m).ref(), I8_PTR));
        }
        if (!m.isAbstract()) {
            body.add(new ConstantBitcast(new FunctionRef(Symbols.methodSymbol(m), getFunctionType(m)), I8_PTR));
            // Size of function. This value will be modified later by patching the .s file.
            body.add(new IntegerConstant(DUMMY_METHOD_SIZE));
            if (m.isSynchronized()) {
                body.add(new ConstantBitcast(new FunctionRef(Symbols.synchronizedWrapperSymbol(m), getFunctionType(m)), I8_PTR));
            }
            if ((flags & MI_NATIVE) == 0) {
                // Cannot use m.isNative() in the condition above since methods which are native in the
                // Java class file may have been changed to non-native by the RoboVM compiler 
                // (e.g. @StructMember methods). The native code which parses the info structs will see 
                // the method as non-native.
                // Add a weak linetable pointer which points to a -1 value which will be interpreted as 0 linenumbers in the table
                Global linetableGlobal = new Global(Symbols.linetableSymbol(m), Linkage.weak, new IntegerConstant(-1));
                mb.addGlobal(linetableGlobal);
                body.add(linetableGlobal.ref());
            }
        }
        if (hasBridgeAnnotation(m)) {
            if (!readBooleanElem(getAnnotation(m, BRIDGE), "dynamic", false)) {
                body.add(new GlobalRef(Symbols.bridgePtrSymbol(m), I8_PTR));
            } else {
                body.add(new NullConstant(I8_PTR));
            }
        } else if (hasGlobalValueAnnotation(m)) {
            body.add(new GlobalRef(Symbols.globalValuePtrSymbol(m), I8_PTR));
        }
        if (hasCallbackAnnotation(m)) {
            body.add(new AliasRef(Symbols.callbackPtrSymbol(m), I8_PTR));
        }
    }
    // after sizeof(ClassInfoHeader) bytes.
    return new StructureConstantBuilder().add(header.build()).add(body.build()).build();
}