Example usage for org.objectweb.asm Opcodes IRETURN

Introduction

In this page you can find the example usage for org.objectweb.asm Opcodes IRETURN.

Prototype

int IRETURN

To view the source code for org.objectweb.asm Opcodes IRETURN.

Click Source Link

Usage

From source file:com.yahoo.yqlplus.engine.internal.bytecode.ASMClassSourceTest.java

@Test
public void requireFields()
        throws IOException, ClassNotFoundException, IllegalAccessException, InstantiationException {
    ASMClassSource source = createASMClassSource();
    final ToyClass toy = new ToyClass("toy", source);
    toy.createField("a", source.constant(BaseTypeAdapter.INT32, 1));
    toy.createField("b", source.constant(BaseTypeAdapter.INT32, 2));
    MethodGenerator method = toy.createMethod("compute");
    method.setReturnType(BaseTypeAdapter.INT32);
    method.add(new BytecodeSequence() {
        @Override/*w w  w .j av a  2  s  .  c  om*/
        public void generate(CodeEmitter code) {
            toy.getField("a").get(code.getLocal("this").read())
                    .write(new BaseTypeExpression(BaseTypeAdapter.INT32) {
                        @Override
                        public void generate(CodeEmitter code) {
                            toy.getField("a").get(code.getLocal("this").read()).read().generate(code);
                            code.emitIntConstant(1);
                            code.getMethodVisitor().visitInsn(Opcodes.IADD);
                        }
                    }).generate(code);
            toy.getField("a").get(code.getLocal("this").read()).read().generate(code);
            toy.getField("b").get(code.getLocal("this").read()).read().generate(code);
            code.getMethodVisitor().visitInsn(Opcodes.IADD);
            code.getMethodVisitor().visitInsn(Opcodes.IRETURN);
        }
    });
    source.build();
    Class<? extends Computor> clazz = (Class<? extends Computor>) toy.getGeneratedClass();
    try {
        Computor foo = clazz.newInstance();
        Assert.assertEquals(foo.compute(), 4);
        Assert.assertEquals(foo.compute(), 5);
    } catch (VerifyError e) {
        toy.trace(System.err);
        throw e;
    }
}

---

From source file:com.yahoo.yqlplus.engine.internal.bytecode.ASMClassSourceTest.java

@Test
public void requireBoxedConstant()
        throws IOException, ClassNotFoundException, IllegalAccessException, InstantiationException {
    final ASMClassSource source = createASMClassSource();
    ToyClass toy = new ToyClass("toy", source);
    MethodGenerator method = toy.createMethod("compute");
    method.setReturnType(BaseTypeAdapter.INT32);
    method.add(new BytecodeSequence() {
        @Override//from w w w.  j a  v a 2s . c  om
        public void generate(CodeEmitter code) {
            source.constant(BaseTypeAdapter.INT32.boxed(), 1).generate(code);
            code.unbox(BaseTypeAdapter.INT32.boxed());
            code.getMethodVisitor().visitInsn(Opcodes.IRETURN);
        }
    });
    source.build();
    Class<? extends Computor> clazz = (Class<? extends Computor>) toy.getGeneratedClass();
    Computor foo = clazz.newInstance();
    Assert.assertEquals(foo.compute(), 1);
}

---

From source file:com.yahoo.yqlplus.engine.internal.bytecode.ASMClassSourceTest.java

@Test
public void requireInjectedConstant()
        throws IOException, ClassNotFoundException, IllegalAccessException, InstantiationException {
    ASMClassSource source = createASMClassSource();
    final ToyClass toy = new ToyClass("toy", source);
    toy.createField("a", source.constant(source.adaptInternal(Hat.class), new Hat()));
    MethodGenerator method = toy.createMethod("compute");
    method.setReturnType(BaseTypeAdapter.INT32);
    method.add(new BytecodeSequence() {
        @Override/*  w  w  w  . j a v  a2s.  co m*/
        public void generate(CodeEmitter code) {
            toy.getField("a").get(code.getLocal("this").read()).read().generate(code);
            code.getMethodVisitor().visitFieldInsn(Opcodes.GETFIELD, Type.getInternalName(Hat.class), "VALUE",
                    Type.INT_TYPE.getDescriptor());
            code.getMethodVisitor().visitInsn(Opcodes.IRETURN);
        }
    });
    source.build();
    Class<? extends Computor> clazz = (Class<? extends Computor>) toy.getGeneratedClass();
    try {
        Computor foo = clazz.newInstance();
        Assert.assertEquals(foo.compute(), 1);
    } catch (VerifyError e) {
        toy.trace(System.err);
        throw e;
    }
}

---

From source file:com.yahoo.yqlplus.engine.internal.bytecode.ASMClassSourceTest.java

@Test
public void testStruct() throws Exception {
    YQLStructType structType = YQLStructType.builder().addField("a", YQLBaseType.INT32).build();
    final ASMClassSource source = createASMClassSource();
    final TypeWidget struct = source.resolveStruct(structType);

    final ToyClass toy = new ToyClass("toy", source);
    MethodGenerator method = toy.createMethod("compute");
    method.setReturnType(BaseTypeAdapter.INT32);
    method.add(new BytecodeSequence() {
        @Override/*from ww  w  .j  av a2 s .c  om*/
        public void generate(CodeEmitter code) {
            AssignableValue local = code.allocate(struct, "s");
            local.write(struct.construct()).generate(code);
            AssignableValue property = struct.getPropertyAdapter().property(local.read(), "a");
            property.write(source.constant(BaseTypeAdapter.INT32, 1)).generate(code);
            property.read().generate(code);
            code.getMethodVisitor().visitInsn(Opcodes.IRETURN);
        }
    });
    source.build();
    Class<? extends Computor> clazz = (Class<? extends Computor>) toy.getGeneratedClass();
    try {
        Computor foo = clazz.newInstance();
        Assert.assertEquals(foo.compute(), 1);
    } catch (VerifyError e) {
        toy.trace(System.err);
        throw e;
    }
}

---

From source file:com.yahoo.yqlplus.engine.internal.bytecode.ASMClassSourceTest.java

@Test
public void requireInjector() throws Exception {
    final ASMClassSource source = createASMClassSource();
    final UnitGenerator toy = new UnitGenerator("toy", source);
    toy.addInterface(Computor.class);
    FieldDefinition field = toy.createField(source.adaptInternal(Hat.class), "hat");
    field.addModifier(Modifier.FINAL);
    ConstructorGenerator gen = toy.createConstructor();
    gen.annotate(Inject.class);
    AssignableValue thisValue = gen.getLocal("this");
    AssignableValue hatArg = gen.addArgument("hat", source.adaptInternal(Hat.class));
    gen.add(field.get(thisValue.read()).write(hatArg.read()));
    MethodGenerator method = toy.createMethod("compute");
    method.setReturnType(BaseTypeAdapter.INT32);
    method.add(new BytecodeSequence() {
        @Override//from   w  w  w . j  av  a  2  s  . c  o  m
        public void generate(CodeEmitter code) {
            toy.getField("hat").get(code.getLocal("this").read()).read().generate(code);
            code.getMethodVisitor().visitFieldInsn(Opcodes.GETFIELD, Type.getInternalName(Hat.class), "VALUE",
                    Type.INT_TYPE.getDescriptor());
            code.getMethodVisitor().visitInsn(Opcodes.IRETURN);
        }
    });
    source.build();
    Class<? extends Computor> clazz = (Class<? extends Computor>) toy.getGeneratedClass();
    Injector injector = Guice.createInjector(new AbstractModule() {
        @Override
        protected void configure() {
            bind(Hat.class).toInstance(new Hat());
        }
    });
    try {
        Computor foo = injector.getInstance(clazz);
        Assert.assertEquals(foo.compute(), 1);
    } catch (VerifyError e) {
        toy.trace(System.err);
        throw e;
    }
}

---

From source file:com.yahoo.yqlplus.engine.internal.bytecode.ASMClassSourceTest.java

@Test
public void requireInjectorField() throws Exception {
    final ASMClassSource source = createASMClassSource();
    final UnitGenerator toy = new UnitGenerator("toy", source);
    toy.addInterface(Computor.class);
    FieldDefinition field = toy.createField(source.adaptInternal(Hat.class), "hat");
    field.addModifier(Modifier.FINAL);
    field.annotate(Inject.class);
    MethodGenerator method = toy.createMethod("compute");
    method.setReturnType(BaseTypeAdapter.INT32);
    method.add(new BytecodeSequence() {
        @Override/* w w  w  . j  a  v  a2 s.c  om*/
        public void generate(CodeEmitter code) {
            toy.getField("hat").get(code.getLocal("this").read()).read().generate(code);
            code.getMethodVisitor().visitFieldInsn(Opcodes.GETFIELD, Type.getInternalName(Hat.class), "VALUE",
                    Type.INT_TYPE.getDescriptor());
            code.getMethodVisitor().visitInsn(Opcodes.IRETURN);
        }
    });
    source.build();
    Class<? extends Computor> clazz = (Class<? extends Computor>) toy.getGeneratedClass();
    Injector injector = Guice.createInjector(new AbstractModule() {
        @Override
        protected void configure() {
            bind(Hat.class).toInstance(new Hat());
        }
    });
    try {
        Computor foo = injector.getInstance(clazz);
        Assert.assertEquals(foo.compute(), 1);
    } catch (VerifyError e) {
        toy.trace(System.err);
        throw e;
    }
}

---

From source file:com.yahoo.yqlplus.engine.internal.bytecode.ASMClassSourceTest.java

@Test
public void requirePredicate() throws Exception {
    final ASMClassSource source = createASMClassSource();
    final UnitGenerator toy = new UnitGenerator("toy", source);
    toy.addInterface(Predicate.class);
    MethodGenerator method = toy.createMethod("apply");
    method.setReturnType(BaseTypeAdapter.BOOLEAN);
    method.addArgument("input", BaseTypeAdapter.ANY);
    method.add(new BytecodeSequence() {
        @Override//w ww . j av  a 2  s  . c o  m
        public void generate(CodeEmitter code) {
            source.constant(BaseTypeAdapter.BOOLEAN, true).generate(code);
            code.getMethodVisitor().visitInsn(Opcodes.IRETURN);
        }
    });
    source.build();
    Class<? extends Predicate> clazz = (Class<? extends Predicate>) toy.getGeneratedClass();
    try {
        Predicate<Object> foo = clazz.newInstance();
        Assert.assertTrue(foo.apply(1));
    } catch (VerifyError e) {
        toy.trace(System.err);
        throw e;
    }
}

---

From source file:com.yahoo.yqlplus.engine.internal.bytecode.ASMClassSourceTest.java

@Test
public void requirePredicateBoxed() throws Exception {
    final ASMClassSource source = createASMClassSource();
    final UnitGenerator toy = new UnitGenerator("toy", source);
    toy.addInterface(Predicate.class);
    MethodGenerator method = toy.createMethod("apply");
    method.setReturnType(BaseTypeAdapter.BOOLEAN);
    method.addArgument("input", BaseTypeAdapter.ANY);
    method.add(new BytecodeSequence() {
        @Override/*from  w  w w. j a  v  a 2s  .c  o  m*/
        public void generate(CodeEmitter code) {
            source.constant(BaseTypeAdapter.BOOLEAN.boxed(), true).generate(code);
            code.unbox(BaseTypeAdapter.BOOLEAN.boxed());
            code.getMethodVisitor().visitInsn(Opcodes.IRETURN);
        }
    });
    source.build();
    Class<? extends Predicate> clazz = (Class<? extends Predicate>) toy.getGeneratedClass();
    try {
        Predicate<Object> foo = clazz.newInstance();
        Assert.assertTrue(foo.apply(1));
    } catch (VerifyError e) {
        toy.trace(System.err);
        throw e;
    }
}

---

From source file:com.yahoo.yqlplus.engine.internal.bytecode.ReturnCode.java

public ReturnCode(TypeWidget type) {
    this.op = type.getJVMType().getOpcode(Opcodes.IRETURN);
}

---

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

public void returnValue(BytecodeExpression result) {
    setReturnType(result.getType());
    add(result);
    add(new ReturnCode(result.getType().getJVMType().getOpcode(Opcodes.IRETURN)));
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• »