private void DefineField(ResolutionVisitor resolutionVisitor, INameDeclaration nameDecl)
{
if (nameDecl == null)
{
// malformed code, for example catch w/o a variable.
return;
}
var field = this[nameDecl.Name];
if (nameDecl is ParameterDeclaration)
{
// function parameters are handled separately, so if this is a parameter declaration,
// then it must be a catch variable.
if (field == null)
{
// no collision - create the catch-error field
field = new JSVariableField(FieldType.CatchError, nameDecl.Name);
this.AddField(field);
}
else
{
// it's an error to declare anything in the catch scope with the same name as the
// error variable
ErrorSink.HandleError(JSError.DuplicateCatch, nameDecl.GetNameSpan(GlobalScope.Node.LocationResolver), resolutionVisitor._locationResolver, true);
}
}
else
{
if (field == null)
{
// could be global or local depending on the scope, so let the scope create it.
field = this.CreateField(nameDecl.Name);
// if this field is a constant, mark it now
var lexDeclaration = nameDecl.Parent as LexicalDeclaration;
this.AddField(field);
}
else
{
// already defined!
// if this is a lexical declaration, then it's an error because we have two
// lexical declarations with the same name in the same scope.
if (nameDecl.Parent is LexicalDeclaration)
{
_errorSink.HandleError(
JSError.DuplicateLexicalDeclaration,
nameDecl.GetNameSpan(GlobalScope.Node.LocationResolver),
resolutionVisitor._locationResolver,
true
);
}
}
}
nameDecl.VariableField = field;
}
private void DefineField(ResolutionVisitor resolutionVisitor, INameDeclaration nameDecl)
{
if (nameDecl == null) {
// malformed code, for example catch w/o a variable.
return;
}
var field = this[nameDecl.Name];
if (nameDecl is ParameterDeclaration)
{
// function parameters are handled separately, so if this is a parameter declaration,
// then it must be a catch variable.
if (field == null)
{
// no collision - create the catch-error field
field = new JSVariableField(FieldType.CatchError, nameDecl.Name);
this.AddField(field);
}
else
{
// it's an error to declare anything in the catch scope with the same name as the
// error variable
ErrorSink.HandleError(JSError.DuplicateCatch, nameDecl.GetNameSpan(GlobalScope.Node.LocationResolver), resolutionVisitor._locationResolver, true);
}
}
else
{
if (field == null)
{
// could be global or local depending on the scope, so let the scope create it.
field = this.CreateField(nameDecl.Name);
// if this field is a constant, mark it now
var lexDeclaration = nameDecl.Parent as LexicalDeclaration;
this.AddField(field);
}
else
{
// already defined!
// if this is a lexical declaration, then it's an error because we have two
// lexical declarations with the same name in the same scope.
if (nameDecl.Parent is LexicalDeclaration)
{
_errorSink.HandleError(
JSError.DuplicateLexicalDeclaration,
nameDecl.GetNameSpan(GlobalScope.Node.LocationResolver),
resolutionVisitor._locationResolver,
true
);
}
}
}
nameDecl.VariableField = field;
}
