private static ITranslationUnit BuildMemberAccessExpressionTranslationUnit(MemberAccessExpressionSyntax expression, SemanticModel semanticModel)
{
var thisExpression = expression.Expression as ThisExpressionSyntax;
var baseExpression = expression.Expression as BaseExpressionSyntax;
var helper = new MemberAccessExpression(expression, semanticModel);
if (thisExpression != null)
{
return(MemberAccessExpressionTranslationUnit.Create(
IdentifierTranslationUnit.Create(helper.MemberName),
MemberAccessExpressionTranslationUnit.MemberAccessMethod.This));
}
if (baseExpression != null)
{
return(MemberAccessExpressionTranslationUnit.Create(
IdentifierTranslationUnit.Create(helper.MemberName),
MemberAccessExpressionTranslationUnit.MemberAccessMethod.Base));
}
throw new InvalidOperationException("Cannot build a member access expression as it is not a `this` expression, nor a `base` expression!");
}
private static ITranslationUnit BuildMemberAccessExpressionTranslationUnit(MemberAccessExpressionSyntax expression, SemanticModel semanticModel)
{
var helper = new MemberAccessExpression(expression, semanticModel);
//translate these Knockout-specific statements
if ("SetValue".Equals(helper.MemberName) ||
"GetValue".Equals(helper.MemberName) ||
"SetItems".Equals(helper.MemberName) ||
"GetItems".Equals(helper.MemberName))
{
return(new ExpressionTranslationUnitBuilder(expression.Expression, semanticModel).Build());
}
if (expression.Expression is ThisExpressionSyntax)
{
return(MemberAccessExpressionTranslationUnit.Create(
IdentifierTranslationUnit.Create(helper.MemberName),
MemberAccessExpressionTranslationUnit.MemberAccessMethod.This));
}
else if (expression.Expression is BaseExpressionSyntax)
{
return(MemberAccessExpressionTranslationUnit.Create(
IdentifierTranslationUnit.Create(helper.MemberName),
MemberAccessExpressionTranslationUnit.MemberAccessMethod.Base));
}
else if (expression.Expression is IdentifierNameSyntax)
{
// The target is a simple identifier, the code being analysed is of the form
// "command.ExecuteReader()" and memberAccess.Expression is the "command"
// node
return(MemberAccessExpressionTranslationUnit.Create(
new ExpressionTranslationUnitBuilder(expression.Expression, semanticModel).Build(),
IdentifierTranslationUnit.Create(helper.MemberName)));
}
else if (expression.Expression is PredefinedTypeSyntax)
{
// The target is a simple identifier, the code being analysed is of the form
// "command.ExecuteReader()" and memberAccess.Expression is the "command"
// node
return(MemberAccessExpressionTranslationUnit.Create(
new ExpressionTranslationUnitBuilder(expression.Expression, semanticModel).Build(),
IdentifierTranslationUnit.Create(helper.MemberName)));
}
else if (expression.Expression is InvocationExpressionSyntax)
{
// The target is another invocation, the code being analysed is of the form
// "GetCommand().ExecuteReader()" and memberAccess.Expression is the
// "GetCommand()" node
return(MemberAccessExpressionTranslationUnit.Create(
new ExpressionTranslationUnitBuilder(expression.Expression, semanticModel).Build(),
IdentifierTranslationUnit.Create(helper.MemberName)));
}
else if (expression.Expression is MemberAccessExpressionSyntax)
{
// The target is a member access, the code being analysed is of the form
// "x.Command.ExecuteReader()" and memberAccess.Expression is the "x.Command"
// node
return(MemberAccessExpressionTranslationUnit.Create(
new ExpressionTranslationUnitBuilder(expression.Expression, semanticModel).Build(),
IdentifierTranslationUnit.Create(helper.MemberName)));
}
else if (expression.Expression is ElementAccessExpressionSyntax)
{
return(BuildElementAccessExpressionTranslationUnit((ElementAccessExpressionSyntax)expression.Expression, semanticModel));
}
else if (expression.Expression is ParenthesizedExpressionSyntax)
{
return(MemberAccessExpressionTranslationUnit.Create(
new ExpressionTranslationUnitBuilder(expression.Expression, semanticModel).Build(),
IdentifierTranslationUnit.Create(helper.MemberName)));
}
return(MemberAccessExpressionTranslationUnit.Create(
IdentifierTranslationUnit.Create(helper.MemberName),
MemberAccessExpressionTranslationUnit.MemberAccessMethod.This));
}
/// <summary>
///
/// </summary>
/// <param name="expression"></param>
/// <returns></returns>
public static ITranslationUnit BuildExpressionTranslationUnit(string memberName,
MemberAccessExpressionTranslationUnit.MemberAccessMethod accessMethod)
{
return(MemberAccessExpressionTranslationUnit.Create(IdentifierTranslationUnit.Create(memberName), accessMethod));
}
/// <summary>
///
/// </summary>
/// <param name="expression"></param>
/// <returns></returns>
public static ITranslationUnit BuildExpressionTranslationUnit(string memberName,
MemberAccessExpressionTranslationUnit.MemberAccessMethod accessMethod)
{
return MemberAccessExpressionTranslationUnit.Create(IdentifierTranslationUnit.Create(memberName), accessMethod);
}