Example usage for org.objectweb.asm MethodVisitor visitMethodInsn

Introduction

In this page you can find the example usage for org.objectweb.asm MethodVisitor visitMethodInsn.

Prototype

public void visitMethodInsn(final int opcode, final String owner, final String name, final String descriptor,
        final boolean isInterface) 

Source Link

Document

Visits a method instruction.

Usage

From source file:com.yahoo.yqlplus.engine.internal.compiler.EqualsExpression.java

@Override
public void generate(CodeEmitter code) {
    // a bit of a hack; should not need to go to dynamic invocation for this unless one arg is ANY
    MethodVisitor mv = code.getMethodVisitor();
    Label hasNull = new Label();
    CodeEmitter.Unification unified = code.unifiedEmit(leftExpr, rightExpr, hasNull);
    if (unified.type.isPrimitive()) {
        emitPrimitiveEquals(code, unified.type);
    } else {//from  www  . ja va  2 s . c  o m
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getInternalName(Object.class), "equals",
                Type.getMethodDescriptor(Type.BOOLEAN_TYPE, Type.getType(Object.class)), false);
        if (negate) {
            emitNegate(mv);
        }
    }
    if (unified.nullPossible) {
        Label done = new Label();
        mv.visitJumpInsn(Opcodes.GOTO, done);
        mv.visitLabel(hasNull);
        emitFalse(code);
        mv.visitLabel(done);
    }
}

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From source file:com.yahoo.yqlplus.engine.internal.plan.types.base.AnyTypeWidget.java

@Override
public ComparisonAdapter getComparisionAdapter() {
    Preconditions.checkState(!isPrimitive(), "BaseTypeWidget should not be handling a primitive type");
    return new ComparisonAdapter() {
        @Override//ww  w. j  a va2s . c om
        public void coerceBoolean(CodeEmitter scope, Label isTrue, Label isFalse, Label isNull) {
            // null or true
            scope.nullTest(AnyTypeWidget.getInstance(), isNull);
            Label popTrue = new Label();
            scope.emitInstanceOf(AnyTypeWidget.getInstance(), Boolean.class, popTrue);
            final MethodVisitor mv = scope.getMethodVisitor();
            mv.visitMethodInsn(Opcodes.GETSTATIC, Type.getInternalName(Boolean.class), "TRUE",
                    Type.getMethodDescriptor(Type.getType(Boolean.class)), false);
            mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getInternalName(Boolean.class), "equals",
                    Type.getMethodDescriptor(Type.BOOLEAN_TYPE, Type.getType(Object.class)), false);
            mv.visitJumpInsn(Opcodes.IFEQ, isFalse);
            mv.visitJumpInsn(Opcodes.GOTO, isTrue);
            mv.visitLabel(popTrue);
            scope.pop(AnyTypeWidget.getInstance());
            mv.visitJumpInsn(Opcodes.GOTO, isTrue);
        }
    };
}

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From source file:com.yahoo.yqlplus.engine.internal.plan.types.base.EmptyObjectSerializer.java

@Override
public BytecodeSequence serializeTo(final BytecodeExpression source, final BytecodeExpression generator) {
    switch (encoding) {
    case JSON:/*  w  ww .j a v  a2s.c  om*/
        return new BytecodeSequence() {
            @Override
            public void generate(CodeEmitter code) {
                MethodVisitor mv = code.getMethodVisitor();
                final BytecodeExpression gen = code.evaluateOnce(generator);
                code.exec(gen);
                mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getInternalName(JsonGenerator.class),
                        "writeStartObject", Type.getMethodDescriptor(Type.VOID_TYPE), false);
                code.exec(gen);
                mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getInternalName(JsonGenerator.class),
                        "writeEndObject", Type.getMethodDescriptor(Type.VOID_TYPE), false);
            }
        };
    case TBIN:
        throw new TodoException();
    default:
        throw new UnsupportedOperationException();
    }
}

---

From source file:com.yahoo.yqlplus.engine.internal.plan.types.base.InvokeExpression.java

@Override
public void generate(CodeEmitter code) {
    if (op != Opcodes.INVOKESTATIC) {
        target.generate(code);//w ww.ja  v a 2 s  .  c  o m
    }
    for (BytecodeExpression arg : arguments) {
        arg.generate(code);
    }
    MethodVisitor mv = code.getMethodVisitor();
    mv.visitMethodInsn(op, owner.getInternalName(), methodName, descriptor, op == Opcodes.INVOKEINTERFACE);
}

---

From source file:com.yahoo.yqlplus.engine.internal.plan.types.base.IterateFirstSequence.java

@Override
public void generate(CodeEmitter start) {
    CodeEmitter code = start.createScope();
    Label done = new Label();
    Label isNull = new Label();
    MethodVisitor mv = code.getMethodVisitor();
    BytecodeExpression tgt = code.evaluateOnce(target);
    tgt.generate(code);//from   w  ww.  j av  a 2s  .co m
    code.emitInstanceCheck(tgt.getType(), Iterable.class, isNull);
    AssignableValue iterator = code.allocate(Iterator.class);
    mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(Iterable.class), "iterator",
            Type.getMethodDescriptor(Type.getType(Iterator.class)), true);
    code.exec(iterator.write(code.adapt(Iterator.class)));
    code.exec(iterator.read());
    mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(Iterator.class), "hasNext",
            Type.getMethodDescriptor(Type.BOOLEAN_TYPE), true);
    mv.visitJumpInsn(Opcodes.IFEQ, isNull);
    code.exec(iterator.read());
    mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(Iterator.class), "next",
            Type.getMethodDescriptor(Type.getType(Object.class)), true);
    code.cast(valueType, AnyTypeWidget.getInstance(), isNull);
    mv.visitJumpInsn(Opcodes.GOTO, done);
    mv.visitLabel(isNull);
    mv.visitInsn(Opcodes.ACONST_NULL);
    mv.visitLabel(done);
}

---

From source file:com.yahoo.yqlplus.engine.internal.plan.types.base.IterateSequence.java

@Override
public void generate(CodeEmitter code) {
    Label done = new Label();
    Label next = new Label();
    MethodVisitor mv = code.getMethodVisitor();
    BytecodeExpression tgt = code.evaluateOnce(target);
    code.exec(tgt);/* ww  w . j av a 2 s .c  o  m*/
    code.emitInstanceCheck(tgt.getType(), Iterable.class, done);
    AssignableValue item = this.item == null ? code.allocate(valueType) : this.item;
    AssignableValue iterator = code.allocate(Iterator.class);
    mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(Iterable.class), "iterator",
            Type.getMethodDescriptor(Type.getType(Iterator.class)), true);
    code.exec(iterator.write(code.adapt(Iterator.class)));
    mv.visitLabel(next);
    code.exec(iterator.read());
    mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(Iterator.class), "hasNext",
            Type.getMethodDescriptor(Type.BOOLEAN_TYPE), true);
    mv.visitJumpInsn(Opcodes.IFEQ, done);
    code.exec(iterator.read());
    mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(Iterator.class), "next",
            Type.getMethodDescriptor(Type.getType(Object.class)), true);
    code.cast(valueType, AnyTypeWidget.getInstance()); // , next);   // don't skip nulls
    code.exec(item.write(item.getType()));
    loop.item(code, item.read(), done, next);
    mv.visitJumpInsn(Opcodes.GOTO, next);
    mv.visitLabel(done);
}

---

From source file:com.yahoo.yqlplus.engine.internal.plan.types.base.IteratingSerializing.java

@Override
public BytecodeSequence serializeTo(final BytecodeExpression source, final BytecodeExpression generator) {
    switch (encoding) {
    case JSON://from   w  w w  . j  av a  2s .  c  om
        return new BytecodeSequence() {
            @Override
            public void generate(CodeEmitter code) {
                MethodVisitor mv = code.getMethodVisitor();
                final BytecodeExpression gen = code.evaluateOnce(generator);
                gen.generate(code);
                mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getInternalName(JsonGenerator.class),
                        "writeStartArray", Type.getMethodDescriptor(Type.VOID_TYPE), false);
                code.exec(iterateAdapter.iterate(source, new IterateAdapter.IterateLoop() {
                    @Override
                    public void item(CodeEmitter code, BytecodeExpression item, Label abortLoop,
                            Label nextItem) {
                        code.exec(valueTypeSerializer.serializeTo(item, gen));
                    }
                }));
                gen.generate(code);
                mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getInternalName(JsonGenerator.class),
                        "writeEndArray", Type.getMethodDescriptor(Type.VOID_TYPE), false);
            }
        };
    case TBIN:
        // TODO: implement iterable TBin serialization (whoops, it requires you to know the count to write an array... hm?)
        // we may need to copy into a list
        throw new TodoException();
    default:
        throw new UnsupportedOperationException();
    }
}

---

From source file:com.yahoo.yqlplus.engine.internal.plan.types.base.JacksonParsePrimitive.java

@Override
public void generate(CodeEmitter code) {
    parser.generate(code);/* w  w  w.  jav  a  2 s  .  co m*/
    MethodVisitor mv = code.getMethodVisitor();
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getInternalName(JsonParser.class), "nextToken",
            Type.getMethodDescriptor(Type.getType(JsonToken.class)), false);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getInternalName(JsonToken.class), "ordinal",
            Type.getMethodDescriptor(Type.INT_TYPE), false);
    IntegerSwitchSequence seq = new IntegerSwitchSequence();
    switch (getType().getJVMType().getSort()) {
    case Type.BOOLEAN: {
        seq.put(JsonToken.VALUE_TRUE.ordinal(), new InstructionConstant(getType(), -1));
        seq.put(JsonToken.VALUE_FALSE.ordinal(), new InstructionConstant(getType(), 0));
        break;
    }
    case Type.SHORT: {
        seq.put(JsonToken.VALUE_NUMBER_INT.ordinal(), new JacksonGet(Type.SHORT_TYPE, "getShortValue"));
        seq.put(JsonToken.VALUE_NUMBER_FLOAT.ordinal(), new JacksonGet(Type.SHORT_TYPE, "getShortValue"));
        break;
    }
    case Type.INT: {
        seq.put(JsonToken.VALUE_NUMBER_INT.ordinal(), new JacksonGet(Type.INT_TYPE, "getIntValue"));
        seq.put(JsonToken.VALUE_NUMBER_FLOAT.ordinal(), new JacksonGet(Type.INT_TYPE, "getIntValue"));
        break;
    }
    case Type.FLOAT: {
        seq.put(JsonToken.VALUE_NUMBER_INT.ordinal(), new JacksonGet(Type.FLOAT_TYPE, "getFloatValue"));
        seq.put(JsonToken.VALUE_NUMBER_FLOAT.ordinal(), new JacksonGet(Type.FLOAT_TYPE, "getFloatValue"));
        break;
    }
    case Type.LONG: {
        seq.put(JsonToken.VALUE_NUMBER_INT.ordinal(), new JacksonGet(Type.LONG_TYPE, "getLongValue"));
        seq.put(JsonToken.VALUE_NUMBER_FLOAT.ordinal(), new JacksonGet(Type.LONG_TYPE, "getLongValue"));
        break;
    }
    case Type.DOUBLE: {
        seq.put(JsonToken.VALUE_NUMBER_INT.ordinal(), new JacksonGet(Type.DOUBLE_TYPE, "getDoubleValue"));
        seq.put(JsonToken.VALUE_NUMBER_FLOAT.ordinal(), new JacksonGet(Type.DOUBLE_TYPE, "getDoubleValue"));
        break;
    }
    case Type.CHAR: {
        LocalCodeChunk chunk = new LocalBatchCode(new LocalFrame());
        chunk.add(new JacksonGet(Type.getType(String.class), "getText"));
        chunk.add(new BytecodeSequence() {
            @Override
            public void generate(CodeEmitter code) {
                MethodVisitor mv = code.getMethodVisitor();
                mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getInternalName(String.class), "charAt",
                        Type.getMethodDescriptor(Type.CHAR_TYPE, Type.INT_TYPE), false);
            }
        });
        seq.put(JsonToken.VALUE_STRING.ordinal(), chunk);
        break;
    }
    default:
        throw new UnsupportedOperationException("Unknown primitive type: " + getType().getJVMType());
    }
    seq.setDefaultSequence(new BytecodeSequence() {
        @Override
        public void generate(CodeEmitter code) {
            code.emitThrow(IllegalArgumentException.class, new StringConstantExpression(String
                    .format("JSON type cannot be parsed into expected type '%s'", getType().getTypeName())));

        }
    });
    code.exec(seq);
}

---

From source file:com.yahoo.yqlplus.engine.internal.plan.types.base.JacksonSerializeObject.java

@Override
public void generate(CodeEmitter code) {
    jsonGenerator.generate(code);//from   w  w  w . j a va  2s. c o m
    source.generate(code);
    MethodVisitor mv = code.getMethodVisitor();
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getInternalName(JsonGenerator.class), "writeObject",
            Type.getMethodDescriptor(Type.VOID_TYPE, Type.getType(Object.class)), false);
}

---

From source file:com.yahoo.yqlplus.engine.internal.plan.types.base.JacksonSerializePrimitive.java

@Override
public void generate(CodeEmitter code) {
    jsonGenerator.generate(code);//from w  w  w.j a  v a2s  .c  om
    source.generate(code);
    MethodVisitor mv = code.getMethodVisitor();
    String desc = Type.getMethodDescriptor(Type.VOID_TYPE, source.getType().getJVMType());
    String name;
    switch (source.getType().getJVMType().getSort()) {
    case Type.BOOLEAN:
        name = "writeBoolean";
        break;
    case Type.SHORT:
    case Type.INT:
    case Type.FLOAT:
    case Type.LONG:
    case Type.DOUBLE:
        name = "writeNumber";
        break;
    case Type.BYTE:
    case Type.CHAR:
        name = "writeObject";
        desc = Type.getMethodDescriptor(Type.VOID_TYPE, Type.getType(Object.class));
        code.box(source.getType());
        break;
    default:
        throw new UnsupportedOperationException("Unknown primitive type: " + source.getType().getJVMType());
    }
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getInternalName(JsonGenerator.class), name, desc, false);
}

---

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