Record Class UnaryOpNode

java.lang.Object
java.lang.Record
cloud.opencode.base.expression.ast.UnaryOpNode
Record Components:
operator - the operator (-, !) | 运算符
operand - the operand | 操作数
All Implemented Interfaces:
Node
public record UnaryOpNode(String operator, Node operand) extends Record implements Node
Unary Operation Node 一元运算节点

Represents unary operations: negation, logical not.

表示一元运算：取负、逻辑非。

Features | 主要功能:

  • Numeric negation (-) - 数值取负
  • Logical not (!) - 逻辑非
  • Unary plus (+) no-op - 一元加号（无操作）

Usage Examples | 使用示例:

Node neg = UnaryOpNode.of("-", LiteralNode.ofInt(5));
Object result = neg.evaluate(ctx);  // -5

Node not = UnaryOpNode.of("!", LiteralNode.ofBoolean(true));
Object result2 = not.evaluate(ctx);  // false

Security | 安全性:

  • Thread-safe: Yes, immutable record - 线程安全: 是，不可变记录
  • Null-safe: No, operator and operand required non-null - 空值安全: 否，运算符和操作数要求非空
Since:
JDK 25, opencode-base-expression V1.0.0
Author:
Leon Soo www.LeonSoo.com
See Also:

  • Constructor Details

    • UnaryOpNode

      public UnaryOpNode(String operator, Node operand)
      Creates an instance of a UnaryOpNode record class.
      Parameters:
      operator - the value for the operator record component
      operand - the value for the operand record component

  • Method Details

    • of

      public static UnaryOpNode of(String operator, Node operand)
      Create unary operation node 创建一元运算节点
      Parameters:
      operator - the operator string | 运算符字符串
      operand - the operand | 操作数
      Returns:
      the unary operation node | 一元运算节点

    • evaluate

      public Object evaluate(EvaluationContext context)
      Description copied from interface: Node
      Evaluate this node 求值此节点
      Specified by:
      evaluate in interface Node
      Parameters:
      context - the evaluation context | 求值上下文
      Returns:
      the evaluation result | 求值结果

    • toExpressionString

      public String toExpressionString()
      Description copied from interface: Node
      Get string representation for debugging 获取用于调试的字符串表示
      Specified by:
      toExpressionString in interface Node
      Returns:
      the string representation | 字符串表示

    • toString

      public final String toString()
      Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.
      Specified by:
      toString in class Record
      Returns:
      a string representation of this object

    • hashCode

      public final int hashCode()
      Returns a hash code value for this object. The value is derived from the hash code of each of the record components.
      Specified by:
      hashCode in class Record
      Returns:
      a hash code value for this object

    • equals

      public final boolean equals(Object o)
      Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. All components in this record class are compared with Objects::equals(Object,Object).
      Specified by:
      equals in class Record
      Parameters:
      o - the object with which to compare
      Returns:
      true if this object is the same as the o argument; false otherwise.

    • operator

      public String operator()
      Returns the value of the operator record component.
      Returns:
      the value of the operator record component

    • operand

      public Node operand()
      Returns the value of the operand record component.
      Returns:
      the value of the operand record component