public void CompilesNestedExpressionsToHeirarchy()
{
var expressionString = "(2 - (4 * (2 - .1))/3 >= 3)";
var tokens = Tokenizer.Tokenize(expressionString).ToArray();
var expressionCompiler = new ExpressionCompiler(new Dictionary <string, ParameterExpression>());
var nestedExpression = expressionCompiler.GetHeirarchicalExpression(tokens);
Assert.AreEqual(7, nestedExpression.tokenSeries.Count);
Assert.AreEqual(2, ((nestedExpression.tokenSeries[0] as TokenExpression)?.compiledExpression as OperatorBuilder).nodeValue);
Assert.AreEqual(TokenType.SUBTRACT, (nestedExpression.tokenSeries[1] as TokenOperator)?.type);
Assert.IsTrue((nestedExpression.tokenSeries[2] as TokenExpression)?.isTokenSeries);
Assert.AreEqual(TokenType.DIVIDE, (nestedExpression.tokenSeries[3] as TokenOperator)?.type);
Assert.AreEqual(3, ((nestedExpression.tokenSeries[4] as TokenExpression)?.compiledExpression as OperatorBuilder).nodeValue);
Assert.AreEqual(TokenType.GREATER_THAN_OR_EQ, (nestedExpression.tokenSeries[5] as TokenOperator)?.type);
Assert.AreEqual(3, ((nestedExpression.tokenSeries[6] as TokenExpression)?.compiledExpression as OperatorBuilder).nodeValue);
var innerSeries1 = (nestedExpression.tokenSeries[2] as TokenExpression).tokenSeries;
Assert.AreEqual(4, ((innerSeries1[0] as TokenExpression)?.compiledExpression as OperatorBuilder).nodeValue);
Assert.AreEqual(TokenType.MULTIPLY, (innerSeries1[1] as TokenOperator)?.type);
Assert.IsTrue((innerSeries1[2] as TokenExpression)?.isTokenSeries);
var innerSeries2 = (innerSeries1[2] as TokenExpression).tokenSeries;
Assert.AreEqual(2, ((innerSeries2[0] as TokenExpression)?.compiledExpression as OperatorBuilder).nodeValue);
Assert.AreEqual(TokenType.SUBTRACT, (innerSeries2[1] as TokenOperator)?.type);
Assert.AreEqual(0.1f, ((innerSeries2[2] as TokenExpression)?.compiledExpression as OperatorBuilder).nodeValue);
}
public void CompilesNestedExpressionWithParameterToHeirarchy()
{
var expressionString = "(2 - (4 * vary))";
var expressionCompiler = new ExpressionCompiler("vary");
var tokens = Tokenizer.Tokenize(expressionString, expressionCompiler.parameters.Keys.ToArray()).ToArray();
var nestedExpression = expressionCompiler.GetHeirarchicalExpression(tokens);
Assert.AreEqual(3f, nestedExpression.tokenSeries.Count);
Assert.AreEqual(2f, ((nestedExpression.tokenSeries[0] as TokenExpression)?.compiledExpression as OperatorBuilder).nodeValue);
Assert.AreEqual(TokenType.SUBTRACT, (nestedExpression.tokenSeries[1] as TokenOperator)?.type);
Assert.IsTrue((nestedExpression.tokenSeries[2] as TokenExpression)?.isTokenSeries);
var innerSeries1 = (nestedExpression.tokenSeries[2] as TokenExpression).tokenSeries;
Assert.AreEqual(4f, ((innerSeries1[0] as TokenExpression)?.compiledExpression as OperatorBuilder).nodeValue);
Assert.AreEqual(TokenType.MULTIPLY, (innerSeries1[1] as TokenOperator)?.type);
Assert.AreEqual("vary", ((innerSeries1[2] as TokenExpression)?.compiledExpression as OperatorBuilder).parameter.Name);
}
