public string Visit(LambdaDefinitionExpr lambdaDefinitionExpr, Scope context)
{
var arguments = from arg in lambdaDefinitionExpr.Arguments
select arg.Name + " : " + arg.Type.Name;
return(lambdaDefinitionExpr.Name + "(" + string.Join(", ", arguments.ToArray()) + ") : " + lambdaDefinitionExpr.ReturnType.Name);
}
public Value Visit(LambdaDefinitionExpr lambda, Scope scope)
{
var value = Value.FromObject(lambda);
scope.DefineIdentifier(lambda.Name, value, value.Type.ToString());
return(value);
}
public void ReturnTypePropertyReturnsPassedReturnType()
{
var name = new IdentifierExpr(RandomGenerator.String());
var arguments = new VarDefinitionStmt[0];
var body = new ConstantExpr(RandomGenerator.Int());
var returnType = new IdentifierExpr(RandomGenerator.String());
var target = new LambdaDefinitionExpr(name, arguments, body, returnType);
Assert.AreSame(returnType, target.ReturnType);
}
public void BodyPropertyReturnsPassedBody()
{
var name = new IdentifierExpr(RandomGenerator.String());
var arguments = new VarDefinitionStmt[0];
var body = new ConstantExpr(RandomGenerator.Int());
var returnType = new IdentifierExpr(RandomGenerator.String());
var target = new LambdaDefinitionExpr(name, arguments, body, returnType);
Assert.AreSame(body, target.Body);
}
public void AcceptMethodCallsVisitOnVisitorWithThis()
{
var name = new IdentifierExpr(RandomGenerator.String());
var arguments = new VarDefinitionStmt[0];
var body = new ConstantExpr(RandomGenerator.Int());
var returnType = new IdentifierExpr(RandomGenerator.String());
var target = new LambdaDefinitionExpr(name, arguments, body, returnType);
var visitor = new Mock <IExpressionVisitor <string, int> >();
target.Accept(visitor.Object, 0);
visitor.Verify(x => x.Visit(target, 0), Times.Once);
}
public void AcceptMethodCallsOnlyVisitOnVisitorWithThisAndNoOtherVisitMethods()
{
var name = new IdentifierExpr(RandomGenerator.String());
var arguments = new VarDefinitionStmt[0];
var body = new ConstantExpr(RandomGenerator.Int());
var returnType = new IdentifierExpr(RandomGenerator.String());
var target = new LambdaDefinitionExpr(name, arguments, body, returnType);
// throw exception is any other methods called other than the PlusExpr overload.
var visitor = new Mock <IExpressionVisitor <string, int> >(MockBehavior.Strict);
visitor.Setup(x => x.Visit(target, 12345)).Returns("");
target.Accept(visitor.Object, 12345);
}
public void LambdaCallTest()
{
var target = new EvaluateVisitor();
var functionName = RandomGenerator.String();
var functionNameExpr = new IdentifierExpr(functionName);
var returnValue = RandomGenerator.String();
var functionDefinition = new LambdaDefinitionExpr(functionNameExpr, new VarDefinitionStmt[0], new ConstantExpr(returnValue), new IdentifierExpr("String"));
var expr = new FunctionCallExpr(functionNameExpr, new Expression[0]);
_scope.DefineIdentifier(functionName, Value.FromObject(functionDefinition));
var actual = target.Visit(expr, _scope);
Assert.AreEqual(returnValue, actual.ToObject());
}
private Value RunFunction(LambdaDefinitionExpr func, Scope scope)
{
return(func.Body.Accept(this, scope));
}
public ValueType Visit(LambdaDefinitionExpr lambdaDefinitionExpr, Scope context)
{
return(ValueType.Function);
}
public void LambdaCallTest()
{
var target = new EvaluateVisitor();
var functionName = RandomGenerator.String();
var functionNameExpr = new IdentifierExpr(functionName);
var returnValue = RandomGenerator.String();
var functionDefinition = new LambdaDefinitionExpr(functionNameExpr, new VarDefinitionStmt[0], new ConstantExpr(returnValue), new IdentifierExpr("String"));
var expr = new FunctionCallExpr(functionNameExpr, new Expression[0]);
_scope.DefineIdentifier(functionName, Value.FromObject(functionDefinition));
var actual = target.Visit(expr, _scope);
Assert.AreEqual(returnValue, actual.ToObject());
}
public void AcceptMethodCallsVisitOnVisitorWithThis()
{
var name = new IdentifierExpr(RandomGenerator.String());
var arguments = new VarDefinitionStmt[0];
var body = new ConstantExpr(RandomGenerator.Int());
var returnType = new IdentifierExpr(RandomGenerator.String());
var target = new LambdaDefinitionExpr(name, arguments, body, returnType);
var visitor = new Mock<IExpressionVisitor<string, int>>();
target.Accept(visitor.Object, 0);
visitor.Verify(x => x.Visit(target, 0), Times.Once);
}
public void AcceptMethodCallsOnlyVisitOnVisitorWithThisAndNoOtherVisitMethods()
{
var name = new IdentifierExpr(RandomGenerator.String());
var arguments = new VarDefinitionStmt[0];
var body = new ConstantExpr(RandomGenerator.Int());
var returnType = new IdentifierExpr(RandomGenerator.String());
var target = new LambdaDefinitionExpr(name, arguments, body, returnType);
// throw exception is any other methods called other than the PlusExpr overload.
var visitor = new Mock<IExpressionVisitor<string, int>>(MockBehavior.Strict);
visitor.Setup(x => x.Visit(target, 12345)).Returns("");
target.Accept(visitor.Object, 12345);
}
