internal override void CollectInputExpressions(List <StatementSyntax> expressions)
{
// Insert expressions from connected nodes
base.CollectInputExpressions(expressions);
// Create container variables for output parameters.
// Assign correct identifiers to method call.
var args = new List <SyntaxNodeOrToken>();
var parameters = m_methodInfo.GetParameters();
var index = 0;
// Skip the first parameter for extension methods.
if (m_methodInfo.IsDefined(typeof(ExtensionAttribute), false))
{
index++;
}
for (; index < parameters.Length; index++)
{
var parameter = parameters[index];
// Create container variables for output parameters.
if (parameter.IsOut)
{
// Output parameters
var localOutputVariableName = VariableSyntaxName(parameter.Name);
// add variable creation expression
expressions.Add(MySyntaxFactory.LocalVariable(parameter.ParameterType.GetElementType().Signature(), localOutputVariableName));
// add variable name to parameters
args.Add(SyntaxFactory.Argument(
SyntaxFactory.IdentifierName(localOutputVariableName)
).WithNameColon(SyntaxFactory.NameColon(parameter.Name))
.WithRefOrOutKeyword(SyntaxFactory.Token(SyntaxKind.OutKeyword)
)
);
}
// Get the names of the variables supplying the values to the method call
else
{
// Find the value input node
MyTuple <MyVisualSyntaxNode, MyVariableIdentifier> inputData;
if (m_parametersToInputs.TryGetValue(parameter, out inputData))
{
// FOUND!
// add variable name to arguments
var variableName = inputData.Item1.VariableSyntaxName(inputData.Item2.VariableName);
Debug.Assert(variableName != null);
args.Add(SyntaxFactory.Argument(
SyntaxFactory.IdentifierName(
variableName
)
).WithNameColon(SyntaxFactory.NameColon(parameter.Name))
);
}
else
{
// Not FOUND! will be probably an constant argument
var paramValue =
ObjectBuilder.InputParameterValues.Find(value => value.ParameterName == parameter.Name);
if (paramValue == null)
{
// Dont panic, there could be still the default value.
if (!parameter.HasDefaultValue)
{
// Add null / some default value
args.Add(
MySyntaxFactory.ConstantDefaultArgument(parameter.ParameterType)
.WithNameColon(SyntaxFactory.NameColon(parameter.Name))
);
}
else
{
// default value will take care of this
continue; // no comma for you args
}
}
else
{
// Add constant value to arguments
args.Add(MySyntaxFactory.ConstantArgument(
parameter.ParameterType.Signature(), paramValue.Value
).WithNameColon(SyntaxFactory.NameColon(parameter.Name))
);
}
}
}
// add comma
args.Add(SyntaxFactory.Token(SyntaxKind.CommaToken));
}
// remove last comma
if (args.Count > 0)
{
args.RemoveAt(args.Count - 1);
}
// Create the invocation syntax
InvocationExpressionSyntax methodInvocation = null;
if (m_methodInfo.IsStatic && !m_methodInfo.IsDefined(typeof(ExtensionAttribute)))
{
// Static call
methodInvocation = MySyntaxFactory.MethodInvocationExpressionSyntax(
SyntaxFactory.IdentifierName(m_methodInfo.DeclaringType.FullName + "." + m_methodInfo.Name),
SyntaxFactory.ArgumentList(SyntaxFactory.SeparatedList <ArgumentSyntax>(args))
);
}
else
{
var declaringType = m_methodInfo.DeclaringType;
// Non static local method invocation
if (declaringType == m_scriptBaseType)
{
methodInvocation = MySyntaxFactory.MethodInvocationExpressionSyntax(
SyntaxFactory.IdentifierName(m_methodInfo.Name),
SyntaxFactory.ArgumentList(SyntaxFactory.SeparatedList <ArgumentSyntax>(args))
);
}
// Non static instance method invocation or extension method
else
{
if (m_instance == null)
{
throw new Exception("FunctionNode: " + ObjectBuilder.ID +
" Is missing mandatory instance input.");
}
var instanceVariableName = m_instance.VariableSyntaxName(ObjectBuilder.InstanceInputID.VariableName);
methodInvocation = MySyntaxFactory.MethodInvocationExpressionSyntax(
SyntaxFactory.IdentifierName(m_methodInfo.Name),
SyntaxFactory.ArgumentList(SyntaxFactory.SeparatedList <ArgumentSyntax>(args)),
SyntaxFactory.IdentifierName(instanceVariableName)
);
}
}
// Finalize the syntax
if (m_methodInfo.ReturnType == typeof(void))
{
// just add invocation
expressions.Add(
SyntaxFactory.ExpressionStatement(methodInvocation)
);
}
else
{
// Create variable for return value
expressions.Add(
MySyntaxFactory.LocalVariable(
string.Empty,
VariableSyntaxName("Return"),
methodInvocation
)
);
}
}
