List of usage examples for org.objectweb.asm Opcodes ASTORE
int ASTORE
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From source file:com.github.malamut2.low.AllocationMethodAdapter.java
License:Apache License
private void dupStackElementBeforeSignatureArgs(final String sig) { final Label beginScopeLabel = new Label(); final Label endScopeLabel = new Label(); super.visitLabel(beginScopeLabel); Type[] argTypes = Type.getArgumentTypes(sig); int[] args = new int[argTypes.length]; for (int i = argTypes.length - 1; i >= 0; --i) { args[i] = newLocal(argTypes[i], beginScopeLabel, endScopeLabel); super.visitVarInsn(argTypes[i].getOpcode(Opcodes.ISTORE), args[i]); }//from w w w . java 2s.c o m super.visitInsn(Opcodes.DUP); for (int i = 0; i < argTypes.length; ++i) { int op = argTypes[i].getOpcode(Opcodes.ILOAD); super.visitVarInsn(op, args[i]); if (op == Opcodes.ALOAD) { super.visitInsn(Opcodes.ACONST_NULL); super.visitVarInsn(Opcodes.ASTORE, args[i]); } } super.visitLabel(endScopeLabel); }
From source file:com.github.wreulicke.bean.validation.ASMMethodParameterValidationInjector.java
License:Open Source License
private void inject(MethodNode node, ClassNode clazzNode) { if (Modifier.isStatic(node.access) || Modifier.isAbstract(node.access) || Modifier.isAbstract(node.access) || "<init>".equals(node.name) || "<clinit>".equals(node.name)) { return;//w w w . java2 s .c o m } InsnList list = new InsnList(); int index = node.localVariables.size(); list.add(new MethodInsnNode(INVOKESTATIC, "javax/validation/Validation", "buildDefaultValidatorFactory", "()Ljavax/validation/ValidatorFactory;", false)); list.add(new MethodInsnNode(INVOKEINTERFACE, "javax/validation/ValidatorFactory", "getValidator", "()Ljavax/validation/Validator;", true)); list.add(new MethodInsnNode(INVOKEINTERFACE, "javax/validation/Validator", "forExecutables", "()Ljavax/validation/executable/ExecutableValidator;", true)); list.add(new VarInsnNode(Opcodes.ASTORE, index)); list.add(new VarInsnNode(Opcodes.ALOAD, index)); list.add(new VarInsnNode(Opcodes.ALOAD, 0)); list.add(new LdcInsnNode(Type.getType("L" + clazzNode.name + ";"))); list.add(new LdcInsnNode(node.name)); @SuppressWarnings("unchecked") List<LocalVariableNode> variables = node.localVariables; Type[] args = Type.getArgumentTypes(node.desc); list.add(new LdcInsnNode(args.length)); list.add(new TypeInsnNode(Opcodes.ANEWARRAY, "java/lang/Class")); for (int i = 0; i < args.length; i++) { int paramIndex = 1 + i; list.add(new InsnNode(Opcodes.DUP)); list.add(new LdcInsnNode(i)); list.add(new LdcInsnNode(Type.getType(variables.get(paramIndex).desc))); list.add(new InsnNode(Opcodes.AASTORE)); } list.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL, "java/lang/Class", "getMethod", "(Ljava/lang/String;[Ljava/lang/Class;)Ljava/lang/reflect/Method;", false)); list.add(new LdcInsnNode(args.length)); list.add(new TypeInsnNode(Opcodes.ANEWARRAY, "java/lang/Object")); for (int i = 0; i < args.length; i++) { int paramIndex = i + 1; list.add(new InsnNode(Opcodes.DUP)); list.add(new LdcInsnNode(i)); list.add(new VarInsnNode(Opcodes.ALOAD, paramIndex)); list.add(new InsnNode(Opcodes.AASTORE)); } list.add(new InsnNode(Opcodes.ICONST_0)); list.add(new TypeInsnNode(Opcodes.ANEWARRAY, "java/lang/Class")); list.add(new MethodInsnNode(INVOKEINTERFACE, "javax/validation/executable/ExecutableValidator", "validateParameters", "(Ljava/lang/Object;Ljava/lang/reflect/Method;[Ljava/lang/Object;[Ljava/lang/Class;)Ljava/util/Set;", true)); list.add(new MethodInsnNode(INVOKESTATIC, "com/github/wreulicke/bean/validation/Constraints", "throwIfNeeded", "(Ljava/util/Set;)V", false)); node.instructions.insert(list); }
From source file:com.google.devtools.build.android.desugar.BytecodeTypeInference.java
License:Open Source License
@Override public void visitVarInsn(int opcode, int var) { switch (opcode) { case Opcodes.ILOAD: push(InferredType.INT);//from w ww . j a va2s .c om break; case Opcodes.LLOAD: push(InferredType.LONG); push(InferredType.TOP); break; case Opcodes.FLOAD: push(InferredType.FLOAT); break; case Opcodes.DLOAD: push(InferredType.DOUBLE); push(InferredType.TOP); break; case Opcodes.ALOAD: push(getLocalVariableType(var)); break; case Opcodes.ISTORE: case Opcodes.FSTORE: case Opcodes.ASTORE: { InferredType type = pop(); setLocalVariableTypes(var, type); break; } case Opcodes.LSTORE: case Opcodes.DSTORE: { InferredType type = pop(2); setLocalVariableTypes(var, type); setLocalVariableTypes(var + 1, InferredType.TOP); break; } case Opcodes.RET: throw new RuntimeException("The instruction RET is not supported"); default: throw new RuntimeException("Unhandled opcode " + opcode); } super.visitVarInsn(opcode, var); }
From source file:com.google.devtools.build.wireless.testing.java.injector.TypeDescriptorTest.java
License:Apache License
/** * Test method for {@link TypeDescriptor#getStoreOpcode()}. *//*from ww w. j ava2s .c o m*/ public void testGetStoreOpcode() { try { TypeDescriptor.VOID.getStoreOpcode(); fail("Void should have thrown an exception!"); } catch (IllegalStateException e) { // OK! } assertEquals("Wrong STORE instruction", Opcodes.ISTORE, TypeDescriptor.BOOLEAN.getStoreOpcode()); assertEquals("Wrong STORE instruction", Opcodes.ISTORE, TypeDescriptor.BYTE.getStoreOpcode()); assertEquals("Wrong STORE instruction", Opcodes.ISTORE, TypeDescriptor.CHAR.getStoreOpcode()); assertEquals("Wrong STORE instruction", Opcodes.ISTORE, TypeDescriptor.SHORT.getStoreOpcode()); assertEquals("Wrong STORE instruction", Opcodes.ISTORE, TypeDescriptor.INTEGER.getStoreOpcode()); assertEquals("Wrong STORE instruction", Opcodes.LSTORE, TypeDescriptor.LONG.getStoreOpcode()); assertEquals("Wrong STORE instruction", Opcodes.FSTORE, TypeDescriptor.FLOAT.getStoreOpcode()); assertEquals("Wrong STORE instruction", Opcodes.DSTORE, TypeDescriptor.DOUBLE.getStoreOpcode()); assertEquals("Wrong STORE instruction", Opcodes.ASTORE, TypeDescriptor.CLASS.getStoreOpcode()); assertEquals("Wrong STORE instruction", Opcodes.ASTORE, TypeDescriptor.ARRAY.getStoreOpcode()); }
From source file:com.google.monitoring.runtime.instrumentation.adapters.AllocationMethodAdapter.java
License:Apache License
private void pushProductOfIntArrayOnStack() { final Label beginScopeLabel = new Label(); final Label endScopeLabel = new Label(); final int dimsArrayIndex = newLocal("[I", beginScopeLabel, endScopeLabel); final int counterIndex = newLocal("I", beginScopeLabel, endScopeLabel); final int productIndex = newLocal("I", beginScopeLabel, endScopeLabel); final Label loopLabel = new Label(); final Label endLabel = new Label(); super.visitLabel(beginScopeLabel); // stack: ... intArray super.visitVarInsn(Opcodes.ASTORE, dimsArrayIndex); // -> stack: ... // counter = 0 super.visitInsn(Opcodes.ICONST_0); super.visitVarInsn(Opcodes.ISTORE, counterIndex); // product = 1 super.visitInsn(Opcodes.ICONST_1); super.visitVarInsn(Opcodes.ISTORE, productIndex); // loop:/*from ww w .j a v a 2 s .com*/ super.visitLabel(loopLabel); // if index >= arraylength goto end: super.visitVarInsn(Opcodes.ILOAD, counterIndex); super.visitVarInsn(Opcodes.ALOAD, dimsArrayIndex); super.visitInsn(Opcodes.ARRAYLENGTH); super.visitJumpInsn(Opcodes.IF_ICMPGE, endLabel); // product = product * max(array[counter],1) super.visitVarInsn(Opcodes.ALOAD, dimsArrayIndex); super.visitVarInsn(Opcodes.ILOAD, counterIndex); super.visitInsn(Opcodes.IALOAD); super.visitInsn(Opcodes.DUP); final Label nonZeroDimension = new Label(); super.visitJumpInsn(Opcodes.IFNE, nonZeroDimension); super.visitInsn(Opcodes.POP); super.visitInsn(Opcodes.ICONST_1); super.visitLabel(nonZeroDimension); super.visitVarInsn(Opcodes.ILOAD, productIndex); super.visitInsn(Opcodes.IMUL); // if overflow happens it happens. super.visitVarInsn(Opcodes.ISTORE, productIndex); // iinc counter 1 super.visitIincInsn(counterIndex, 1); // goto loop super.visitJumpInsn(Opcodes.GOTO, loopLabel); // end: super.visitLabel(endLabel); // re-push dimensions array super.visitVarInsn(Opcodes.ALOAD, dimsArrayIndex); // push product super.visitVarInsn(Opcodes.ILOAD, productIndex); super.visitLabel(endScopeLabel); }
From source file:com.google.monitoring.runtime.instrumentation.adapters.AllocationMethodAdapter.java
License:Apache License
/** * Reflection-based allocation (@see java.lang.reflect.Array#newInstance) is * triggered with a static method call (INVOKESTATIC), so we hook it here. * Class initialization is triggered with a constructor call (INVOKESPECIAL) * so we hook that here too as a proxy for the new bytecode which leaves an * uninitialized object on the stack that we're not allowed to touch. * {@link java.lang.Object#clone} is also a call to INVOKESPECIAL, * and is hooked here. {@link java.lang.Class#newInstance} and * {@link java.lang.reflect.Constructor#newInstance} are both * INVOKEVIRTUAL calls, so they are hooked here, as well. *//*from w w w . ja v a2s.c om*/ @Override public void visitMethodInsn(final int opcode, final String owner, final String name, final String signature, final boolean itf) { if (opcode == Opcodes.INVOKESTATIC && // Array does its own native allocation. Grr. owner.equals("java/lang/reflect/Array") && name.equals("newInstance")) { if (signature.equals("(Ljava/lang/Class;I)Ljava/lang/Object;")) { final Label beginScopeLabel = new Label(); final Label endScopeLabel = new Label(); super.visitLabel(beginScopeLabel); // stack: ... class count final int countIndex = newLocal("I", beginScopeLabel, endScopeLabel); super.visitVarInsn(Opcodes.ISTORE, countIndex); // -> stack: ... class pushClassNameOnStack(); // -> stack: ... class className final int typeNameIndex = newLocal("Ljava/lang/String;", beginScopeLabel, endScopeLabel); super.visitVarInsn(Opcodes.ASTORE, typeNameIndex); // -> stack: ... class super.visitVarInsn(Opcodes.ILOAD, countIndex); // -> stack: ... class count super.visitMethodInsn(opcode, owner, name, signature, itf); // -> stack: ... newobj super.visitInsn(Opcodes.DUP); // -> stack: ... newobj newobj super.visitVarInsn(Opcodes.ILOAD, countIndex); // -> stack: ... newobj newobj count super.visitInsn(Opcodes.SWAP); // -> stack: ... newobj count newobj super.visitVarInsn(Opcodes.ALOAD, typeNameIndex); super.visitLabel(endScopeLabel); // -> stack: ... newobj count newobj className super.visitInsn(Opcodes.SWAP); // -> stack: ... newobj count className newobj super.visitMethodInsn(Opcodes.INVOKESTATIC, recorderClass, recorderMethod, RECORDER_SIGNATURE, false); // -> stack: ... newobj return; } else if (signature.equals("(Ljava/lang/Class;[I)Ljava/lang/Object;")) { final Label beginScopeLabel = new Label(); final Label endScopeLabel = new Label(); super.visitLabel(beginScopeLabel); final int dimsArrayIndex = newLocal("[I", beginScopeLabel, endScopeLabel); // stack: ... class dimsArray pushProductOfIntArrayOnStack(); // -> stack: ... class dimsArray product final int productIndex = newLocal("I", beginScopeLabel, endScopeLabel); super.visitVarInsn(Opcodes.ISTORE, productIndex); // -> stack: ... class dimsArray super.visitVarInsn(Opcodes.ASTORE, dimsArrayIndex); // -> stack: ... class pushClassNameOnStack(); // -> stack: ... class className final int typeNameIndex = newLocal("Ljava/lang/String;", beginScopeLabel, endScopeLabel); super.visitVarInsn(Opcodes.ASTORE, typeNameIndex); // -> stack: ... class super.visitVarInsn(Opcodes.ALOAD, dimsArrayIndex); // -> stack: ... class dimsArray super.visitMethodInsn(opcode, owner, name, signature, itf); // -> stack: ... newobj super.visitInsn(Opcodes.DUP); // -> stack: ... newobj newobj super.visitVarInsn(Opcodes.ILOAD, productIndex); // -> stack: ... newobj newobj product super.visitInsn(Opcodes.SWAP); // -> stack: ... newobj product newobj super.visitVarInsn(Opcodes.ALOAD, typeNameIndex); super.visitLabel(endScopeLabel); // -> stack: ... newobj product newobj className super.visitInsn(Opcodes.SWAP); // -> stack: ... newobj product className newobj super.visitMethodInsn(Opcodes.INVOKESTATIC, recorderClass, recorderMethod, RECORDER_SIGNATURE, false); // -> stack: ... newobj return; } } if (opcode == Opcodes.INVOKEVIRTUAL) { if ("clone".equals(name) && owner.startsWith("[")) { super.visitMethodInsn(opcode, owner, name, signature, itf); int i = 0; while (i < owner.length()) { if (owner.charAt(i) != '[') { break; } i++; } if (i > 1) { // -> stack: ... newobj super.visitTypeInsn(Opcodes.CHECKCAST, owner); // -> stack: ... arrayref calculateArrayLengthAndDispatch(owner.substring(i), i); } else { // -> stack: ... newobj super.visitInsn(Opcodes.DUP); // -> stack: ... newobj newobj super.visitTypeInsn(Opcodes.CHECKCAST, owner); // -> stack: ... newobj arrayref super.visitInsn(Opcodes.ARRAYLENGTH); // -> stack: ... newobj length super.visitInsn(Opcodes.SWAP); // -> stack: ... length newobj invokeRecordAllocation(owner.substring(i)); } return; } else if ("newInstance".equals(name)) { if ("java/lang/Class".equals(owner) && "()Ljava/lang/Object;".equals(signature)) { super.visitInsn(Opcodes.DUP); // -> stack: ... Class Class super.visitMethodInsn(opcode, owner, name, signature, itf); // -> stack: ... Class newobj super.visitInsn(Opcodes.DUP_X1); // -> stack: ... newobj Class newobj super.visitMethodInsn(Opcodes.INVOKESTATIC, recorderClass, recorderMethod, CLASS_RECORDER_SIG, false); // -> stack: ... newobj return; } else if ("java/lang/reflect/Constructor".equals(owner) && "([Ljava/lang/Object;)Ljava/lang/Object;".equals(signature)) { buildRecorderFromObject(opcode, owner, name, signature, itf); return; } } } if (opcode == Opcodes.INVOKESPECIAL) { if ("clone".equals(name) && "java/lang/Object".equals(owner)) { buildRecorderFromObject(opcode, owner, name, signature, itf); return; } else if ("<init>".equals(name) && outstandingAllocs > 0) { // Tricky because superclass initializers mean there can be more calls // to <init> than calls to NEW; hence outstandingAllocs. --outstandingAllocs; // Most of the time (i.e. in bytecode generated by javac) it is the case // that following an <init> call the top of the stack has a reference ot // the newly-initialized object. But nothing in the JVM Spec requires // this, so we need to play games with the stack to make an explicit // extra copy (and then discard it). dupStackElementBeforeSignatureArgs(signature); super.visitMethodInsn(opcode, owner, name, signature, itf); super.visitLdcInsn(-1); super.visitInsn(Opcodes.SWAP); invokeRecordAllocation(owner); super.visitInsn(Opcodes.POP); return; } } super.visitMethodInsn(opcode, owner, name, signature, itf); }
From source file:com.google.monitoring.runtime.instrumentation.adapters.AllocationMethodAdapter.java
License:Apache License
private void dupStackElementBeforeSignatureArgs(final String sig) { final Label beginScopeLabel = new Label(); final Label endScopeLabel = new Label(); super.visitLabel(beginScopeLabel); final Type[] argTypes = Type.getArgumentTypes(sig); final int[] args = new int[argTypes.length]; for (int i = argTypes.length - 1; i >= 0; --i) { args[i] = newLocal(argTypes[i], beginScopeLabel, endScopeLabel); super.visitVarInsn(argTypes[i].getOpcode(Opcodes.ISTORE), args[i]); }// w w w . ja v a2s. c o m super.visitInsn(Opcodes.DUP); for (int i = 0; i < argTypes.length; ++i) { final int op = argTypes[i].getOpcode(Opcodes.ILOAD); super.visitVarInsn(op, args[i]); if (op == Opcodes.ALOAD) { super.visitInsn(Opcodes.ACONST_NULL); super.visitVarInsn(Opcodes.ASTORE, args[i]); } } super.visitLabel(endScopeLabel); }
From source file:com.google.template.soy.jbcsrc.TemplateFactoryCompiler.java
License:Apache License
/** * Generates a static initializer that references the CompiledTemplate class to force eager * classloading (and thus verification errors). For example, <pre>{@code * static {// w w w . j a v a 2s . com * Class<?> clz = GeneratedTemplateClass.class; * }}</pre> */ private void generateStaticInitializer(ClassVisitor cv) { if (Flags.DEBUG) { new Statement() { @Override void doGen(CodeBuilder adapter) { adapter.pushType(template.typeInfo().type()); adapter.visitVarInsn(Opcodes.ASTORE, 0); adapter.returnValue(); } }.writeMethod(Opcodes.ACC_STATIC, BytecodeUtils.CLASS_INIT, cv); } }
From source file:com.google.test.metric.asm.MethodVisitorBuilder.java
License:Apache License
public void visitVarInsn(final int opcode, final int var) { switch (opcode) { case Opcodes.ILOAD: load(var, JavaType.INT); break;/* w w w. j a v a2s .c o m*/ case Opcodes.LLOAD: load(var, JavaType.LONG); break; case Opcodes.FLOAD: load(var, JavaType.FLOAT); break; case Opcodes.DLOAD: load(var, JavaType.DOUBLE); break; case Opcodes.ALOAD: load(var, JavaType.OBJECT); break; case Opcodes.ISTORE: store(var, JavaType.INT); break; case Opcodes.LSTORE: store(var, JavaType.LONG); break; case Opcodes.FSTORE: store(var, JavaType.FLOAT); break; case Opcodes.DSTORE: store(var, JavaType.DOUBLE); break; case Opcodes.ASTORE: store(var, JavaType.OBJECT); break; case Opcodes.RET: recorder.add(new Runnable() { public void run() { block.addOp(new RetSub(lineNumber)); } }); break; default: throw new UnsupportedOperationException("opcode: " + opcode); } }
From source file:com.khubla.jvmbasic.jvmbasicc.function.impl.rule.variableassignmentRule.java
License:Open Source License
@Override public boolean execute(GenerationContext generationContext) throws Exception { try {//from w ww . j a v a2s .co m /* * the tree should have 3 sub nodes like this "variableassignment : vardecl EQ exprlist" */ String variableName = null; if (generationContext.getParseTree().getChildCount() == 3) { /* * get the variable name */ variableName = VariableNameUtil .getVariableName((VardeclContext) generationContext.getParseTree().getChild(0)); /* * get the tree for the value. this should push the value onto the ExecutionContextStack */ final ExprlistContext exprlistContext = (ExprlistContext) generationContext.getParseTree() .getChild(2); final GenerationContext subGenerationContext = new GenerationContext(generationContext, exprlistContext); Dispatcher.dispatch(subGenerationContext); } else { throw new Exception( "Invalid number of arguments '" + generationContext.getParseTree().getChildCount() + "'"); } /* * store the top of the stack into slot 1 */ generationContext.getMethodVisitor().visitVarInsn(Opcodes.ALOAD, 0); generationContext.getMethodVisitor().visitFieldInsn(Opcodes.GETFIELD, generationContext.getClassName(), RTLHelper.EXECUTIONCONTEXT_NAME, RTLHelper.JASIC_RUNTIME_EXECUTIONCONTEXT_TYPE); generationContext.getMethodVisitor().visitMethodInsn(Opcodes.INVOKEVIRTUAL, RTLHelper.JASIC_RUNTIME_EXECUTIONCONTEXT, "pop", "()Lcom/khubla/jvmbasic/jvmbasicrt/Value;"); generationContext.getMethodVisitor().visitVarInsn(Opcodes.ASTORE, 1); /* * put the value in slot 1 into the variable in the execution context */ generationContext.getMethodVisitor().visitVarInsn(Opcodes.ALOAD, 0); generationContext.getMethodVisitor().visitFieldInsn(Opcodes.GETFIELD, generationContext.getClassName(), RTLHelper.EXECUTIONCONTEXT_NAME, RTLHelper.JASIC_RUNTIME_EXECUTIONCONTEXT_TYPE); generationContext.getMethodVisitor().visitLdcInsn(variableName); generationContext.getMethodVisitor().visitVarInsn(Opcodes.ALOAD, 1); generationContext.getMethodVisitor().visitMethodInsn(Opcodes.INVOKEVIRTUAL, RTLHelper.JASIC_RUNTIME_EXECUTIONCONTEXT, "setVariable", "(Ljava/lang/String;Lcom/khubla/jvmbasic/jvmbasicrt/Value;)V"); return true; } catch (final Exception e) { throw new Exception("Exception in execute", e); } }