// ExecStatement
public override bool Walk(ExecStatement node)
{
if (node.Locals == null && node.Globals == null)
{
Debug.Assert(_currentScope != null);
_currentScope.ContainsUnqualifiedExec = true;
}
return(true);
}
public override void PostWalk(ExecStatement node)
{
if (node.NeedsLocalsDictionary())
{
_currentScope.NeedsLocalsDictionary = true;
}
if (node.Locals == null)
{
_currentScope.HasLateBoundVariableSets = true;
}
}
public override bool Walk(ExecStatement node) {
CanComplete = IsActualExpression(node.Code);
CommitByDefault = true;
return base.Walk(node);
}
public override void PostWalk(ExecStatement node) {
if (node.NeedsLocalsDictionary()) {
_currentScope.NeedsLocalsDictionary = true;
}
if (node.Locals == null) {
_currentScope.HasLateBoundVariableSets = true;
}
}
//exec_stmt: 'exec' expr ['in' expression [',' expression]]
private ExecStatement ParseExecStmt() {
Eat(TokenKind.KeywordExec);
string execWhiteSpace = _tokenWhiteSpace;
var start = GetStart();
Expression code, locals = null, globals = null;
code = ParseExpr();
string inWhiteSpace = null, commaWhiteSpace = null;
if (MaybeEat(TokenKind.KeywordIn)) {
inWhiteSpace = _tokenWhiteSpace;
globals = ParseExpression();
if (MaybeEat(TokenKind.Comma)) {
commaWhiteSpace = _tokenWhiteSpace;
locals = ParseExpression();
}
}
var codeTuple = code as TupleExpression;
if (_langVersion.Is2x() && codeTuple != null) {
if (codeTuple.Items != null) {
if (codeTuple.Items.Count >= 3) {
locals = codeTuple.Items[2];
}
if (codeTuple.Items.Count >= 2) {
globals = codeTuple.Items[1];
}
if (codeTuple.Items.Count >= 1) {
code = codeTuple.Items[0];
}
}
}
ExecStatement ret = new ExecStatement(code, locals, globals);
if (_verbatim) {
AddPreceedingWhiteSpace(ret, execWhiteSpace);
AddSecondPreceedingWhiteSpace(ret, inWhiteSpace);
AddThirdPreceedingWhiteSpace(ret, commaWhiteSpace);
}
ret.SetLoc(start, GetEnd());
return ret;
}
// ExecStatement
public override bool Walk(ExecStatement node) {
if (node.Locals == null && node.Globals == null) {
Debug.Assert(_currentScope != null);
_currentScope.ContainsUnqualifiedExec = true;
}
return true;
}
public override bool Walk(ExecStatement node) {
UpdateLineInfo(node);
return base.Walk(node);
}
public override bool Walk(ExecStatement node) {
UpdateChildRanges(node);
return base.Walk(node);
}
public override void PostWalk(ExecStatement node) { PostWalkWorker(node); }
// ExecStatement
public override bool Walk(ExecStatement node) { return ShouldWalkWorker(node); }