public void CanRoundtripTestcase()
{
string testcase = GetTestcase();
var ast = WebIDLParser.Parse(new StringReader(testcase));
string actual = WebIDLFormatter.Format(ast);
//File.WriteAllText("Result.webidl", actual);
var expectedLines = testcase.Replace("\r\n", "\n").Split('\n');
var actualLines = actual.Replace("\r\n", "\n").Split('\n').Select(Normalize).Where(s => s != "").ToArray();
int actualIndex = 0;
for (int expectedIndex = 0; expectedIndex < expectedLines.Length; expectedIndex++)
{
string expectedLine = Normalize(expectedLines[expectedIndex].Trim());
if (expectedLine == "")
{
continue;
}
if (actualIndex == actualLines.Length)
{
Assert.Fail("Testcase line #{0}:\nWas \"{1}\".\nNo more expected lines.", expectedIndex + 1, expectedLines[expectedIndex]);
}
if (expectedLine != actualLines[actualIndex])
{
Assert.Fail("Testcase line #{0}:\nWas \"{1}\".\nexpected \"{2}\".", expectedIndex + 1, actualLines[actualIndex], expectedLines[expectedIndex]);
}
actualIndex++;
}
}
private string Format(Dictionary <string, ResolvedDefinition> types)
{
var sb = new StringBuilder();
foreach (var t in types.OrderBy(x => x.Key).Select(x => x.Value))
{
t.Decompose(
@interface => {
if (@interface.ExtendedAttributes.Count > 0)
{
sb.Append("[" + string.Join(", ", @interface.ExtendedAttributes.Select(WebIDLFormatter.Format)) + "] ");
}
sb.Append("interface " + @interface.Name + " ");
if (@interface.Base != null)
{
sb.Append(": " + @interface.Base + " ");
}
sb.AppendLine("{");
foreach (var imp in @interface.Implements.OrderBy(x => x))
{
sb.AppendLine("\timplements " + imp + ";");
}
sb.Append(string.Join("", @interface.Members.Select(m => "\t" + WebIDLFormatter.Format(m))));
sb.Append("}");
},
callbackInterface => {
if (callbackInterface.ExtendedAttributes.Count > 0)
{
sb.Append("[" + string.Join(", ", callbackInterface.ExtendedAttributes.Select(WebIDLFormatter.Format)) + "] ");
}
sb.Append("callback interface " + callbackInterface.Name + " ");
if (callbackInterface.Base != null)
{
sb.Append(": " + callbackInterface.Base + " ");
}
sb.AppendLine("{");
sb.Append(string.Join("", callbackInterface.Members.Select(m => "\t" + WebIDLFormatter.Format(m))));
sb.Append("}");
},
dictionary => {
if (dictionary.ExtendedAttributes.Count > 0)
{
sb.Append("[" + string.Join(", ", dictionary.ExtendedAttributes.Select(WebIDLFormatter.Format)) + "] ");
}
sb.Append("dictionary " + dictionary.Name + " ");
if (dictionary.Base != null)
{
sb.Append(": " + dictionary.Base + " ");
}
sb.AppendLine("{");
sb.Append(string.Join("", dictionary.Members.Select(m => "\t" + WebIDLFormatter.Format(m))));
sb.Append("}");
},
callback => {
if (callback.ExtendedAttributes.Count > 0)
{
sb.Append("[" + string.Join(", ", callback.ExtendedAttributes.Select(WebIDLFormatter.Format)) + "] ");
}
sb.Append("callback " + callback.Name + " = " + WebIDLFormatter.Format(callback.ReturnType) + " ");
sb.Append("(" + string.Join(", ", callback.Arguments.Select(WebIDLFormatter.Format)) + ")");
},
exception => {
if (exception.ExtendedAttributes.Count > 0)
{
sb.Append("[" + string.Join(", ", exception.ExtendedAttributes.Select(WebIDLFormatter.Format)) + "] ");
}
sb.Append("exception " + exception.Name + " ");
if (exception.Base != null)
{
sb.Append(": " + exception.Base + " ");
}
sb.AppendLine("{");
sb.Append(string.Join("", exception.Members.Select(m => "\t" + WebIDLFormatter.Format(m))));
sb.Append("}");
},
@enum => {
if (@enum.ExtendedAttributes.Count > 0)
{
sb.Append("[" + string.Join(", ", @enum.ExtendedAttributes.Select(WebIDLFormatter.Format)) + "] ");
}
sb.Append("enum " + @enum.Name + " { " + string.Join(", ", @enum.Values.Select(v => "\"" + v + "\"")) + " }");
},
declaredInterface => {
sb.Append("interface " + declaredInterface.Name);
}
);
sb.AppendLine(";");
}
return(sb.ToString());
}