本文整理汇总了Java中org.objectweb.asm.MethodVisitor.visitLdcInsn方法的典型用法代码示例。如果您正苦于以下问题:Java MethodVisitor.visitLdcInsn方法的具体用法?Java MethodVisitor.visitLdcInsn怎么用?Java MethodVisitor.visitLdcInsn使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.objectweb.asm.MethodVisitor
的用法示例。
在下文中一共展示了MethodVisitor.visitLdcInsn方法的15个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: ldcI
import org.objectweb.asm.MethodVisitor; //导入方法依赖的package包/类
static void ldcI(MethodVisitor mv, int i) {
/* Special opcodes for some integer constants */
if (i >= -1 && i <= 5) {
mv.visitInsn(Opcodes.ICONST_0 + i);
} else {
/* BIPUSH or SIPUSH if integer constant within certain limits */
if (i >= Byte.MIN_VALUE && i <= Byte.MAX_VALUE) {
mv.visitIntInsn(Opcodes.BIPUSH, i);
} else if (i >= Short.MIN_VALUE && i <= Short.MAX_VALUE) {
mv.visitIntInsn(Opcodes.SIPUSH, i);
} else {
/* Fallback to LDC */
mv.visitLdcInsn(Integer.valueOf(i));
}
}
}
示例2: loadArgumentsAndValidateArguments
import org.objectweb.asm.MethodVisitor; //导入方法依赖的package包/类
private static int loadArgumentsAndValidateArguments(MethodVisitor mv, Type[] paramTypes, ClassMetadata classMetadata, MethodInfo minfo) {
int var = 0; // <- counts the used local variables
for (int i = 0; i < paramTypes.length; i++) {
Type paramType = paramTypes[i];
mv.visitVarInsn(paramType.getOpcode(ILOAD), var);
if (VALIDATE.enabled) {
if (paramType.getSort() == Type.OBJECT && Util.isBuffer(paramType.getInternalName())) {
mv.visitInsn(DUP);
mv.visitMethodInsn(INVOKESTATIC, RT_InternalName, "checkBuffer", "(" + paramType.getDescriptor() + ")V", false);
}
if (ClassMetadata.hasNullables && (paramType.getSort() == Type.OBJECT || paramType.getSort() == Type.ARRAY) && !minfo.nullable[i]) {
mv.visitInsn(DUP);
mv.visitLdcInsn(i);
if (minfo.parameterNames[i] != null)
mv.visitLdcInsn(minfo.parameterNames[i]);
else
mv.visitInsn(ACONST_NULL);
mv.visitMethodInsn(INVOKESTATIC, RT_InternalName, "checkNotNull", "(Ljava/lang/Object;ILjava/lang/String;)V", false);
}
}
var += paramType.getSize();
}
return var;
}
示例3: callUserMethodOrDirect
import org.objectweb.asm.MethodVisitor; //导入方法依赖的package包/类
private static void callUserMethodOrDirect(ClassLoader classLoader, InterceptedCall call, MethodVisitor mv) {
/* Check if we have a user-provided validation method */
String validationMethodOwnerName = getClassForMethod(classLoader, call.desc, call);
if (validationMethodOwnerName != null) {
/* we have, so call it... */
mv.visitMethodInsn(INVOKESTATIC, validationMethodOwnerName, call.name, call.desc, false);
} else {
/* we don't have a user-defined validation method yet, so just call the target method directly */
mv.visitMethodInsn(INVOKESTATIC, call.receiverInternalName, call.name, call.desc, false);
}
/* Check GL error if it was a GL call */
if (VALIDATE.enabled && call.glName != null && !call.glName.equals("glGetError")) {
mv.visitLdcInsn(call.name);
mv.visitMethodInsn(INVOKESTATIC, RT_InternalName, "checkError", "(Ljava/lang/String;)V", false);
}
}
示例4: generateClass
import org.objectweb.asm.MethodVisitor; //导入方法依赖的package包/类
private static byte[] generateClass(Class<? extends TileEntity> baseClass, String className, String contentId)
{
ClassWriter cw = new ClassWriter(0);
cw.visit(V1_7, ACC_PUBLIC + ACC_SUPER, className, null, Type.getInternalName(baseClass), null);
// Constructor
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
mv.visitVarInsn(ALOAD, 0);
mv.visitLdcInsn(contentId);
mv.visitMethodInsn(INVOKESPECIAL, Type.getInternalName(baseClass), "<init>", "(Ljava/lang/String;)V", false);
mv.visitInsn(RETURN);
mv.visitMaxs(2, 1);
mv.visitEnd();
return cw.toByteArray();
}
示例5: insertBooleanGetter
import org.objectweb.asm.MethodVisitor; //导入方法依赖的package包/类
@Override
public void insertBooleanGetter(MethodVisitor mv, int var, String key) {
loadVar(mv, var);
mv.visitLdcInsn(key);
mv.visitMethodInsn(INVOKEINTERFACE, DATA.getInternalName(), "getBoolean",
Type.getMethodDescriptor(Type.BOOLEAN_TYPE, STRING), true);
}
示例6: addTypeSpecial
import org.objectweb.asm.MethodVisitor; //导入方法依赖的package包/类
private static void addTypeSpecial(MethodVisitor mv, Class<?> type) {
if (type.isPrimitive()) {
mv.visitFieldInsn(GETSTATIC, Type.getInternalName(getBoxed(type)), "TYPE", "Ljava/lang/Class;");
} else {
mv.visitLdcInsn(Type.getType(Type.getDescriptor(type)));
}
}
示例7: insertStringGetter
import org.objectweb.asm.MethodVisitor; //导入方法依赖的package包/类
@Override
public void insertStringGetter(MethodVisitor mv, int var, String key, boolean escaped) {
loadVar(mv, var);
mv.visitLdcInsn(key);
mv.visitMethodInsn(INVOKEINTERFACE, DATA.getInternalName(), escaped ? "get" : "getUnescaped",
Type.getMethodDescriptor(STRING, STRING), true);
}
示例8: insertNewInstanceInner
import org.objectweb.asm.MethodVisitor; //导入方法依赖的package包/类
@SuppressWarnings("deprecation")
static void insertNewInstanceInner(ClassWriter cw, String classNameInternal, String enclosingClassNameInternal) {
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "newInstance", "(Ljava/lang/Object;)Ljava/lang/Object;", null,
null);
mv.visitCode();
if (enclosingClassNameInternal != null) {
mv.visitTypeInsn(NEW, classNameInternal);
mv.visitInsn(DUP);
mv.visitVarInsn(ALOAD, 1);
mv.visitTypeInsn(CHECKCAST, enclosingClassNameInternal);
mv.visitInsn(DUP);
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Object", "getClass", "()Ljava/lang/Class;");
mv.visitInsn(POP);
mv.visitMethodInsn(INVOKESPECIAL, classNameInternal, "<init>", "(L" + enclosingClassNameInternal + ";)V");
mv.visitInsn(ARETURN);
mv.visitMaxs(4, 2);
} else {
mv.visitTypeInsn(NEW, "java/lang/UnsupportedOperationException");
mv.visitInsn(DUP);
mv.visitLdcInsn("Not an inner class.");
mv.visitMethodInsn(INVOKESPECIAL, "java/lang/UnsupportedOperationException", "<init>",
"(Ljava/lang/String;)V");
mv.visitInsn(ATHROW);
mv.visitMaxs(3, 2);
}
mv.visitEnd();
}
示例9: genExceptionThrowForUnknownParam
import org.objectweb.asm.MethodVisitor; //导入方法依赖的package包/类
private static void genExceptionThrowForUnknownParam(String paramType, MethodVisitor mv) {
mv.visitTypeInsn(NEW, "java/lang/IllegalArgumentException");
mv.visitInsn(DUP);
mv.visitTypeInsn(NEW, "java/lang/StringBuilder");
mv.visitInsn(DUP);
mv.visitLdcInsn("No " + paramType + " parameter named ");
mv.visitMethodInsn(INVOKESPECIAL, "java/lang/StringBuilder", "<init>", "(Ljava/lang/String;)V", false);
mv.visitVarInsn(ALOAD, 1);
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append", "(Ljava/lang/String;)Ljava/lang/StringBuilder;",
false);
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "toString", "()Ljava/lang/String;", false);
mv.visitMethodInsn(INVOKESPECIAL, "java/lang/IllegalArgumentException", "<init>", "(Ljava/lang/String;)V", false);
mv.visitInsn(ATHROW);
}
示例10: applyConventionMappingToSetter
import org.objectweb.asm.MethodVisitor; //导入方法依赖的package包/类
public void applyConventionMappingToSetter(PropertyMetaData property, Method setter) throws Exception {
// GENERATE public <return-type> <setter>(<type> v) { <return-type> v = super.<setter>(v); __<prop>__ = true; return v; }
Type paramType = Type.getType(setter.getParameterTypes()[0]);
Type returnType = Type.getType(setter.getReturnType());
String setterDescriptor = Type.getMethodDescriptor(returnType, paramType);
MethodVisitor methodVisitor = visitor.visitMethod(Opcodes.ACC_PUBLIC, setter.getName(), setterDescriptor, null, EMPTY_STRINGS);
methodVisitor.visitCode();
// GENERATE super.<setter>(v)
methodVisitor.visitVarInsn(Opcodes.ALOAD, 0);
methodVisitor.visitVarInsn(paramType.getOpcode(Opcodes.ILOAD), 1);
methodVisitor.visitMethodInsn(Opcodes.INVOKESPECIAL, superclassType.getInternalName(), setter.getName(), setterDescriptor, false);
// END
// GENERATE __<prop>__ = true
methodVisitor.visitVarInsn(Opcodes.ALOAD, 0);
methodVisitor.visitLdcInsn(true);
methodVisitor.visitFieldInsn(Opcodes.PUTFIELD, generatedType.getInternalName(), propFieldName(property), Type.BOOLEAN_TYPE.getDescriptor());
// END
methodVisitor.visitInsn(returnType.getOpcode(Opcodes.IRETURN));
methodVisitor.visitMaxs(0, 0);
methodVisitor.visitEnd();
}
示例11: writeGenericReturnTypeFieldInitializer
import org.objectweb.asm.MethodVisitor; //导入方法依赖的package包/类
private void writeGenericReturnTypeFieldInitializer(MethodVisitor mv, ReturnTypeEntry returnType) {
mv.visitLdcInsn(generatedType);
// <class>.getDeclaredMethod(<getter-name>)
mv.visitLdcInsn(returnType.getterName);
mv.visitInsn(Opcodes.ICONST_0);
mv.visitTypeInsn(Opcodes.ANEWARRAY, CLASS_TYPE.getInternalName());
mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, CLASS_TYPE.getInternalName(), "getDeclaredMethod", GET_DECLARED_METHOD_DESCRIPTOR, false);
// <method>.getGenericReturnType()
mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, METHOD_TYPE.getInternalName(), "getGenericReturnType", Type.getMethodDescriptor(JAVA_LANG_REFLECT_TYPE), false);
mv.visitFieldInsn(PUTSTATIC, generatedType.getInternalName(), returnType.fieldName, JAVA_REFLECT_TYPE_DESCRIPTOR);
}
示例12: pushInt
import org.objectweb.asm.MethodVisitor; //导入方法依赖的package包/类
private static void pushInt(MethodVisitor mv, int i) {
if (0 <= i && i <= 5) {
mv.visitInsn(Opcodes.ICONST_0 + i); // ICONST_0 ~ ICONST_5
} else if (i <= Byte.MAX_VALUE) {
mv.visitIntInsn(Opcodes.BIPUSH, i);
} else if (i <= Short.MAX_VALUE) {
mv.visitIntInsn(Opcodes.SIPUSH, i);
} else {
mv.visitLdcInsn(i);
}
}
示例13: insertThrowExceptionForFieldType
import org.objectweb.asm.MethodVisitor; //导入方法依赖的package包/类
@SuppressWarnings("deprecation")
static private MethodVisitor insertThrowExceptionForFieldType(MethodVisitor mv, String fieldType) {
mv.visitTypeInsn(NEW, "java/lang/IllegalArgumentException");
mv.visitInsn(DUP);
mv.visitTypeInsn(NEW, "java/lang/StringBuilder");
mv.visitInsn(DUP);
mv.visitLdcInsn("Field not declared as " + fieldType + ": ");
mv.visitMethodInsn(INVOKESPECIAL, "java/lang/StringBuilder", "<init>", "(Ljava/lang/String;)V");
mv.visitVarInsn(ILOAD, 2);
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append", "(I)Ljava/lang/StringBuilder;");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "toString", "()Ljava/lang/String;");
mv.visitMethodInsn(INVOKESPECIAL, "java/lang/IllegalArgumentException", "<init>", "(Ljava/lang/String;)V");
mv.visitInsn(ATHROW);
return mv;
}
示例14: generateMethodTest13
import org.objectweb.asm.MethodVisitor; //导入方法依赖的package包/类
/**
* Generate test with an invokedynamic, a static bootstrap method with an extra arg that is a
* MethodHandle of kind put instance. The method handle write an instance field in a class and
* then print its value.
*/
private void generateMethodTest13(ClassVisitor cv) {
MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PUBLIC + Opcodes.ACC_STATIC, "test13", "()V",
null, null);
MethodType mt = MethodType.methodType(CallSite.class, MethodHandles.Lookup.class, String.class,
MethodType.class, MethodHandle.class);
Handle bootstrap = new Handle(Opcodes.H_INVOKESTATIC, Type.getInternalName(InvokeCustom.class),
"bsmCreateCallCallingtargetMethod", mt.toMethodDescriptorString(), false);
mv.visitTypeInsn(Opcodes.NEW, Type.getInternalName(InvokeCustom.class));
mv.visitInsn(Opcodes.DUP);
mv.visitMethodInsn(
Opcodes.INVOKESPECIAL, Type.getInternalName(InvokeCustom.class), "<init>", "()V", false);
mv.visitVarInsn(Opcodes.ASTORE, 0);
mv.visitVarInsn(Opcodes.ALOAD, 0);
mv.visitLdcInsn("Write instance field");
mv.visitInvokeDynamicInsn("instanceField1", "(Linvokecustom/InvokeCustom;Ljava/lang/String;)V",
bootstrap, new Handle(Opcodes.H_PUTFIELD, Type.getInternalName(InvokeCustom.class),
"instanceField1", "Ljava/lang/String;", false));
mv.visitFieldInsn(Opcodes.GETSTATIC,
"java/lang/System",
"out",
"Ljava/io/PrintStream;");
mv.visitVarInsn(Opcodes.ALOAD, 0);
mv.visitFieldInsn(Opcodes.GETFIELD,
Type.getInternalName(InvokeCustom.class),
"instanceField1",
"Ljava/lang/String;");
mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL,
"java/io/PrintStream",
"println",
"(Ljava/lang/String;)V", false);
mv.visitInsn(Opcodes.RETURN);
mv.visitMaxs(-1, -1);
}
示例15: buildClosureClass
import org.objectweb.asm.MethodVisitor; //导入方法依赖的package包/类
private void buildClosureClass(TContext closure_ctx) throws CompileException {
Debug.assertion(closure_ctx instanceof TContextClosure, "closure_ctx should be closure ctx");
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES);
((TContextClosure) closure_ctx).setClassWriter(cw);
cw.visit(Compiler.java_version, Opcodes.ACC_PUBLIC, closure_ctx.getName(), null, "java/lang/Object", null);
// default constructor
MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null);
mv.visitCode();
LOG.info("ALOAD 0 for this");
LOG.info("INVOKESPECIAL java/lang/Object");
mv.visitVarInsn(Opcodes.ALOAD, 0); // this
mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
if (Debug.enable_compile_debug_print) {
mv.visitFieldInsn(Opcodes.GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
mv.visitLdcInsn(closure_ctx.getName() + " was instantiated");
mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V", false);
}
mv.visitInsn(Opcodes.RETURN);
mv.visitMaxs(0, 0);
mv.visitEnd();
// end default constructor
TContext parent_ctx = (TContext) closure_ctx.getOwnerType();
Debug.assertion(parent_ctx != null, "parent_ctx should be valid");
// add closure class member field
Container var_cont = null;
AbsType var_type = null;
LinkedList<Container> var_list = closure_ctx.get_childvar_list();
int var_size = var_list.size();
Container closure_member_var = null;
for (int i = 0; i < var_size; i++) {
closure_member_var = var_list.get(i);
var_cont = closure_member_var.getClosureOrgFuncvarContainer();
Debug.assertion(var_cont != null, "var_cont should be valid");
// Debug.assertion(var_cont.isForm(Container.FORM_FUNSTACK_VAR), "var_cont
// should be stack variable");
Debug.assertion(var_cont.isTypeInitialized(), "var_cont type should be initialized");
if (var_cont.isForm(Container.FORM_FUNSTACK_VAR)) {
// only assigned stack variable will be copied
if (var_cont.isAssigned()) {
LOG.debug(" (" + var_cont.getContextVarIdx() + ") " + var_cont);
var_type = var_cont.getType();
cw.visitField(Opcodes.ACC_PUBLIC, var_cont.getName(), var_type.getMthdDscStr(), null, null).visitEnd();
}
} else if (var_cont.isForm(Container.FORM_OBJMEMBER_VAR)) {
LOG.debug(" (" + var_cont.getContextVarIdx() + ") " + var_cont);
var_type = var_cont.getType();
cw.visitField(Opcodes.ACC_PUBLIC, var_cont.getName(), var_type.getMthdDscStr(), null, null).visitEnd();
} else {
throw new CompileException("Invalid var_cont form(" + var_cont + ")");
}
}
}