internal override Executable ResolveEntityNames(ParserContext parser)
{
this.BatchExecutableEntityNameResolver(parser, this.TryBlock);
Common.TODO.GetCoreNameFromMetadataWithLocale();
string coreExceptionName = "Core.Exception";
ClassDefinition simpleException = this.FileScope.DoClassLookup(this.Owner, null, coreExceptionName);
foreach (CatchBlock cb in this.CatchBlocks)
{
string[] types = cb.Types;
Token[] typeTokens = cb.TypeTokens;
int typeCount = types.Length;
cb.TypeClasses = new ClassDefinition[typeCount];
for (int i = 0; i < typeCount; ++i)
{
string typeName = types[i] ?? coreExceptionName;
Token token = typeTokens[i] ?? cb.CatchToken;
ClassDefinition resolvedType = this.FileScope.DoClassLookup(this.Owner, token, typeName, true);
if (resolvedType == null)
{
throw new ParserException(token, "Could not resolve class name for catch.");
}
if (!resolvedType.ExtendsFrom(simpleException))
{
throw new ParserException(token, "Only classes that extend from Core.Exception may be caught.");
}
cb.TypeClasses[i] = resolvedType;
// There's only one type, it doesn't resolve into a class, there's no variable, and there's no '.' in the type name.
if (resolvedType == null &&
typeCount == 1 &&
cb.ExceptionVariableToken == null &&
!typeName.Contains("."))
{
// ...that means this is not a type but is actually a variable.
// Change the type to "Core.Exception", move this token to a variable
types[0] = coreExceptionName;
cb.ExceptionVariableToken = token;
typeTokens[0] = null;
--i; // and then try resolving again.
}
}
/*
* TODO: throw an error or warning if an exception catch is followed by a more specific catch.
* e.g.
* try { ... }
* catch (Exception) { ... }
* catch (InvalidArgumentException) { ... }
*/
this.BatchExecutableEntityNameResolver(parser, cb.Code);
}
if (this.FinallyBlock != null)
{
this.BatchExecutableEntityNameResolver(parser, this.FinallyBlock);
}
return(this);
}
