Interface Expression

All Superinterfaces:
Serializable
All Known Implementing Classes:
BaseExpression, ClassExpression, InterpretExpression, LiteralExpression
public interface Expression extends Serializable
A expression

  • Method Summary

    Modifier and Type
    Method
    Description
    String
    addSymbol(String name)
    Adds the specified symbol to the symbol table and returns a reference to the unique symbol.
    Object
    execute()
    Execute an expression with an empty environment, returns the result.
    Object
    execute(Map<String,Object> env)
    Execute an expression with an environment, returns the result.
    List<String>
    getFunctionNames()
    Returns the function names in the expression when using AviatorEvaluator.EVAL mode, otherwise returns an empty list.
    String
    getSourceFile()
    Returns the source file name.
    List<String>
    getVariableFullNames()
    Returns this expression's all uninitialized global variable full names(contains dot) in order when using AviatorEvaluator.EVAL mode, otherwise returns an empty list.
    List<String>
    getVariableNames()
    Returns this expression's all uninitialized global variable names in order when using AviatorEvaluator.EVAL mode, otherwise returns an empty list.
    Map<String,Object>
    newEnv(Object... args)
    Created a faster env map(compare variable names by reference).The arguments should be a sequence of pair invalid input: '<'String, Object>.

  • Method Details

    • execute

      Object execute(Map<String,Object> env)
      Execute an expression with an environment, returns the result.
      Parameters:
      env - Binding variable environment
      Returns:
      the result of execution

    • execute

      Object execute()
      Execute an expression with an empty environment, returns the result.
      Returns:
      the result of execution

    • getSourceFile

      String getSourceFile()
      Returns the source file name.
      Returns:
      the source file name
      Since:
      5.2.3

    • getVariableNames

      List<String> getVariableNames()
      Returns this expression's all uninitialized global variable names in order when using AviatorEvaluator.EVAL mode, otherwise returns an empty list.
      Returns:
      See Also:

    • getVariableFullNames

      List<String> getVariableFullNames()
      Returns this expression's all uninitialized global variable full names(contains dot) in order when using AviatorEvaluator.EVAL mode, otherwise returns an empty list.
      Returns:

    • newEnv

      Map<String,Object> newEnv(Object... args)
      Created a faster env map(compare variable names by reference).The arguments should be a sequence of pair invalid input: '<'String, Object>.
      Parameters:
      args -
      Returns:
      an env map

    • addSymbol

      String addSymbol(String name)
      Adds the specified symbol to the symbol table and returns a reference to the unique symbol. If the symbol already exists, the previous symbol reference is returned instead, in order guarantee that symbol references remain unique.
      Parameters:
      name - The symbol name.

    • getFunctionNames

      List<String> getFunctionNames()
      Returns the function names in the expression when using AviatorEvaluator.EVAL mode, otherwise returns an empty list.
      Returns:
      the function name list
      Since:
      5.4.2