public void loadOrStoreVariable(BytecodeVariable variable, boolean useReferenceDirectly) { CompileStack compileStack = controller.getCompileStack(); if (compileStack.isLHS()) { storeVar(variable); } else { MethodVisitor mv = controller.getMethodVisitor(); int idx = variable.getIndex(); ClassNode type = variable.getType(); if (variable.isHolder()) { mv.visitVarInsn(ALOAD, idx); if (!useReferenceDirectly) { mv.visitMethodInsn( INVOKEVIRTUAL, "groovy/lang/Reference", "get", "()Ljava/lang/Object;", false); BytecodeHelper.doCast(mv, type); push(type); } else { push(ClassHelper.REFERENCE_TYPE); } } else { load(type, idx); } } }
/** load the constant on the operand stack. */ public void pushConstant(ConstantExpression expression) { MethodVisitor mv = controller.getMethodVisitor(); Object value = expression.getValue(); ClassNode origType = expression.getType().redirect(); ClassNode type = ClassHelper.getUnwrapper(origType); boolean boxing = origType != type; boolean asPrimitive = boxing || ClassHelper.isPrimitiveType(type); if (value == null) { mv.visitInsn(ACONST_NULL); } else if (boxing && value instanceof Boolean) { // special path for boxed boolean Boolean bool = (Boolean) value; String text = bool ? "TRUE" : "FALSE"; mv.visitFieldInsn(GETSTATIC, "java/lang/Boolean", text, "Ljava/lang/Boolean;"); boxing = false; type = origType; } else if (asPrimitive) { pushPrimitiveConstant(mv, value, type); } else if (value instanceof BigDecimal) { String className = BytecodeHelper.getClassInternalName(value.getClass().getName()); mv.visitTypeInsn(NEW, className); mv.visitInsn(DUP); mv.visitLdcInsn(value.toString()); mv.visitMethodInsn(INVOKESPECIAL, className, "<init>", "(Ljava/lang/String;)V", false); } else if (value instanceof BigInteger) { String className = BytecodeHelper.getClassInternalName(value.getClass().getName()); mv.visitTypeInsn(NEW, className); mv.visitInsn(DUP); mv.visitLdcInsn(value.toString()); mv.visitMethodInsn(INVOKESPECIAL, className, "<init>", "(Ljava/lang/String;)V", false); } else if (value instanceof String) { mv.visitLdcInsn(value); } else { throw new ClassGeneratorException( "Cannot generate bytecode for constant: " + value + " of type: " + type.getName()); } push(type); if (boxing) box(); }
public void pushBool(boolean inclusive) { MethodVisitor mv = controller.getMethodVisitor(); mv.visitLdcInsn(inclusive); push(ClassHelper.boolean_TYPE); }
public void load(ClassNode type, int idx) { MethodVisitor mv = controller.getMethodVisitor(); BytecodeHelper.load(mv, type, idx); push(type); }
/** replace n top level elements with new element of given type */ public void replace(ClassNode type, int n) { remove(n); push(type); }