@Override public void generateCode(MethodVisitor mv, CodeFlow cf) { if (this.value == BooleanTypedValue.TRUE) { mv.visitLdcInsn(1); } else { mv.visitLdcInsn(0); } cf.pushDescriptor(this.exitTypeDescriptor); }
@Override public void generateCode(MethodVisitor mv, CodeFlow cf) { mv.visitLdcInsn(this.value.getValue()); cf.pushDescriptor(this.exitTypeDescriptor); }
@Override public void generateCode(MethodVisitor mv, CodeFlow cf) { mv.visitLdcInsn(this.value.getValue()); cf.pushDescriptor(this.exitTypeDescriptor); }
@Override public void generateCode(MethodVisitor mv, CodeFlow cf) { mv.visitLdcInsn(this.value.getValue()); cf.pushDescriptor(this.exitTypeDescriptor); }
@Override public void generateCode(MethodVisitor mv, CodeFlow cf) { mv.visitLdcInsn(this.value.getValue()); cf.pushDescriptor(this.exitTypeDescriptor); }
@Override public void generateCode(String propertyName, MethodVisitor mv, CodeFlow cf) { String descriptor = cf.lastDescriptor(); if (descriptor == null || !descriptor.equals("Ljava/util/Map")) { if (descriptor == null) { cf.loadTarget(mv); } CodeFlow.insertCheckCast(mv, "Ljava/util/Map"); } mv.visitLdcInsn(propertyName); mv.visitMethodInsn(INVOKEINTERFACE, "java/util/Map", "get","(Ljava/lang/Object;)Ljava/lang/Object;",true); }
@Override public void generateCode(MethodVisitor mv, CodeFlow cf) { Integer intValue = (Integer) this.value.getValue(); Assert.state(intValue != null, "No int value"); if (intValue == -1) { // Not sure we can get here because -1 is OpMinus mv.visitInsn(ICONST_M1); } else if (intValue >= 0 && intValue < 6) { mv.visitInsn(ICONST_0 + intValue); } else { mv.visitLdcInsn(intValue); } cf.pushDescriptor(this.exitTypeDescriptor); }
@Override public void generateCode(MethodVisitor mv, CodeFlow cf) { if (this.name.equals(ROOT)) { mv.visitVarInsn(ALOAD,1); } else { mv.visitVarInsn(ALOAD, 2); mv.visitLdcInsn(this.name); mv.visitMethodInsn(INVOKEINTERFACE, "org/springframework/expression/EvaluationContext", "lookupVariable", "(Ljava/lang/String;)Ljava/lang/Object;",true); } CodeFlow.insertCheckCast(mv, this.exitTypeDescriptor); cf.pushDescriptor(this.exitTypeDescriptor); }
/** * Create the optimal instruction for loading a number on the stack. * @param mv where to insert the bytecode * @param value the value to be loaded */ public static void insertOptimalLoad(MethodVisitor mv, int value) { if (value < 6) { mv.visitInsn(ICONST_0+value); } else if (value < Byte.MAX_VALUE) { mv.visitIntInsn(BIPUSH, value); } else if (value < Short.MAX_VALUE) { mv.visitIntInsn(SIPUSH, value); } else { mv.visitLdcInsn(value); } }
@Override public void generateCode(MethodVisitor mv, CodeFlow cf) { mv.visitLdcInsn(this.value.getValue()); cf.pushDescriptor(this.exitTypeDescriptor); }
@Override public void generateCode(MethodVisitor mv, CodeFlow cf) { mv.visitLdcInsn(this.value.getValue()); cf.pushDescriptor(this.exitTypeDescriptor); }
@Override public void generateCode(MethodVisitor mv, CodeFlow cf) { mv.visitLdcInsn(this.value.getValue()); cf.pushDescriptor(this.exitTypeDescriptor); }
@Override public void generateCode(String propertyName, MethodVisitor mv, CodeFlow cf) { String descriptor = cf.lastDescriptor(); if (descriptor == null || !descriptor.equals("Ljava/util/Map")) { if (descriptor == null) { cf.loadTarget(mv); } CodeFlow.insertCheckCast(mv, "Ljava/util/Map"); } mv.visitLdcInsn(propertyName); mv.visitMethodInsn(INVOKEINTERFACE, "java/util/Map", "get","(Ljava/lang/Object;)Ljava/lang/Object;",true); }
@Override public void generateCode(String propertyName, MethodVisitor mv, CodeFlow cf) { if (method == null) { try { method = Payload2.class.getDeclaredMethod("getField", String.class); } catch (Exception ex) { } } String descriptor = cf.lastDescriptor(); String memberDeclaringClassSlashedDescriptor = method.getDeclaringClass().getName().replace('.','/'); if (descriptor == null) { cf.loadTarget(mv); } if (descriptor == null || !memberDeclaringClassSlashedDescriptor.equals(descriptor.substring(1))) { mv.visitTypeInsn(CHECKCAST, memberDeclaringClassSlashedDescriptor); } mv.visitLdcInsn(propertyName); mv.visitMethodInsn(INVOKEVIRTUAL, memberDeclaringClassSlashedDescriptor, method.getName(), CodeFlow.createSignatureDescriptor(method), false); } }
@Override public void generateCode(String propertyName, MethodVisitor mv, CodeFlow cf) { String descriptor = cf.lastDescriptor(); if (descriptor == null) { cf.loadTarget(mv); } mv.visitLdcInsn(propertyName); mv.visitMethodInsn(INVOKEINTERFACE, "java/util/Map", "get","(Ljava/lang/Object;)Ljava/lang/Object;",true); } }
mv.visitLdcInsn(Type.getType(this.type));
mv.visitLdcInsn(""); mv.visitInsn(SWAP); mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/String", "equals", "(Ljava/lang/Object;)Z",false);
@Override public void generateCode(MethodVisitor mv, CodeFlow cf) { // pseudo: if (leftOperandValue) { result=true; } else { result=rightOperandValue; } Label elseTarget = new Label(); Label endOfIf = new Label(); cf.enterCompilationScope(); getLeftOperand().generateCode(mv, cf); cf.unboxBooleanIfNecessary(mv); cf.exitCompilationScope(); mv.visitJumpInsn(IFEQ, elseTarget); mv.visitLdcInsn(1); // TRUE mv.visitJumpInsn(GOTO,endOfIf); mv.visitLabel(elseTarget); cf.enterCompilationScope(); getRightOperand().generateCode(mv, cf); cf.unboxBooleanIfNecessary(mv); cf.exitCompilationScope(); mv.visitLabel(endOfIf); cf.pushDescriptor(this.exitTypeDescriptor); }
@Override public void generateCode(MethodVisitor mv, CodeFlow cf) { // Pseudo: if (!leftOperandValue) { result=false; } else { result=rightOperandValue; } Label elseTarget = new Label(); Label endOfIf = new Label(); cf.enterCompilationScope(); getLeftOperand().generateCode(mv, cf); cf.unboxBooleanIfNecessary(mv); cf.exitCompilationScope(); mv.visitJumpInsn(IFNE, elseTarget); mv.visitLdcInsn(0); // FALSE mv.visitJumpInsn(GOTO,endOfIf); mv.visitLabel(elseTarget); cf.enterCompilationScope(); getRightOperand().generateCode(mv, cf); cf.unboxBooleanIfNecessary(mv); cf.exitCompilationScope(); mv.visitLabel(endOfIf); cf.pushDescriptor(this.exitTypeDescriptor); }