public static bool CheckMightNeedLocalsDictionary(Stmt s)
{
MightNeedLocalsWalker w = new MightNeedLocalsWalker();
s.Walk(w);
return(w.MightNeedLocals);
}
private GlobalSuite DoBind(Stmt root)
{
GlobalSuite global = new GlobalSuite(root);
current = global;
// Detect all local names
root.Walk(this);
// Binding the free variables
foreach (ScopeStatement scope in processed)
{
scope.BindNames(global, this);
}
// Validate
foreach (ScopeStatement scope in processed)
{
if ((scope.ScopeInfo &
(ScopeStatement.ScopeFlags.ContainsFreeVariables |
ScopeStatement.ScopeFlags.ContainsImportStar |
ScopeStatement.ScopeFlags.ContainsUnqualifiedExec |
ScopeStatement.ScopeFlags.ContainsNestedFreeVariables)) == 0)
{
continue;
}
FuncDef func;
if ((func = scope as FuncDef) != null)
{
if (func.ContainsImportStar && func.IsClosure)
{
ReportSyntaxError(String.Format("import * is not allowed in function '{0}' because it is a nested function", func.name.GetString()), func);
}
if (func.ContainsImportStar && func.parent is FuncDef)
{
ReportSyntaxError(String.Format("import * is not allowed in function '{0}' because it is a nested function", func.name.GetString()), func);
}
if (func.ContainsImportStar && func.ContainsNestedFreeVariables)
{
ReportSyntaxError(String.Format("import * is not allowed in function '{0}' because it contains a nested function with free variables", func.name.GetString()), func);
}
if (func.ContainsUnqualifiedExec && func.ContainsNestedFreeVariables)
{
ReportSyntaxError(String.Format("unqualified exec is not allowed in function '{0}' it contains a nested function with free variables", func.name.GetString()), func);
}
}
ClassDef cls;
if ((cls = scope as ClassDef) != null)
{
if (cls.ContainsImportStar)
{
// warning
}
}
}
return(global);
}
public override void Walk(IAstWalker w)
{
if (w.Walk(this))
{
body.Walk(w);
finallyStmt.Walk(w);
}
w.PostWalk(this);
}
public override void Walk(IAstWalker w)
{
if (w.Walk(this))
{
test.Walk(w);
body.Walk(w);
}
w.PostWalk(this);
}
public override void Walk(IAstWalker w)
{
if (w.Walk(this))
{
test.Walk(w);
body.Walk(w);
if (elseStmt != null)
{
elseStmt.Walk(w);
}
}
w.PostWalk(this);
}
public override void Walk(IAstWalker w)
{
if (w.Walk(this))
{
foreach (IfStmtTest t in tests)
{
t.Walk(w);
}
if (elseStmt != null)
{
elseStmt.Walk(w);
}
}
w.PostWalk(this);
}
public override void Walk(IAstWalker w)
{
if (w.Walk(this))
{
if (test != null)
{
test.Walk(w);
}
if (target != null)
{
target.Walk(w);
}
body.Walk(w);
}
w.PostWalk(this);
}
public override void Walk(IAstWalker w)
{
if (w.Walk(this))
{
body.Walk(w);
foreach (TryStmtHandler handler in handlers)
{
handler.Walk(w);
}
if (elseStmt != null)
{
elseStmt.Walk(w);
}
}
w.PostWalk(this);
}
