// Copyright 2022 EMQ Technologies Co., Ltd. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. package ast func IsNumericArg(arg Expr) bool { if _, ok := arg.(*NumberLiteral); ok { return true } else if _, ok := arg.(*IntegerLiteral); ok { return true } return false } func IsIntegerArg(arg Expr) bool { if _, ok := arg.(*IntegerLiteral); ok { return true } return false } func IsFloatArg(arg Expr) bool { if _, ok := arg.(*NumberLiteral); ok { return true } return false } func IsBooleanArg(arg Expr) bool { switch t := arg.(type) { case *BooleanLiteral: return true case *BinaryExpr: switch t.OP { case AND, OR, EQ, NEQ, LT, LTE, GT, GTE, BETWEEN, NOTBETWEEN, IN, NOTIN, LIKE, NOTLIKE: return true default: return false } default: return false } } func IsStringArg(arg Expr) bool { if _, ok := arg.(*StringLiteral); ok { return true } return false } func IsTimeArg(arg Expr) bool { if _, ok := arg.(*TimeLiteral); ok { return true } return false } func IsFieldRefArg(arg Expr) bool { if _, ok := arg.(*FieldRef); ok { return true } return false }