public Compiler(Lexer parser, ExpressionEnvironment environment)
{
if (parser == null)
{
throw new ArgumentNullException("parser");
}
this.parser = parser;
this.environment = environment;
}
public void MyTestInitialize()
{
this.environment = new TopExpressionEnvironment();
}
public Compiler(TextReader reader, ExpressionEnvironment environment)
: this(new Lexer(reader), environment)
{
}
public Compiler(string text, ExpressionEnvironment environment)
: this(new Lexer(text), environment)
{
}
/// <summary> /// Tries to evaluate the given expression in the context of /// the given environment. /// </summary> /// <param name="env">Environment in which to evaluate the /// expression.</param> /// <param name="value">On success, receives the evaluation /// result.</param> /// <returns>true on success; false otherwise.</returns> public abstract bool TryEvaluate(ExpressionEnvironment env, out string value);
