public JNode VisitForeachStatement_old(ForeachStatement node)
{
if (node.InExpression != null)
{
var expRes = node.InExpression.Resolve();
var et = expRes.Type.GetDefinitionOrArrayType(Compiler);
var iteratorType = expRes.Type;
//var et = node.expression.entity_typeref.GetEntityType();
if (et != null)
{
var jta = JMeta.GetJsTypeAttribute(et);
if (jta != null && jta.NativeEnumerator)
{
var node2 = new JForInStatement
{
Initializer = J.Var(node.VariableName, node.Resolve().Type.JAccess()),
Member = VisitExpression(node.InExpression),
Statement = VisitStatement(node.EmbeddedStatement)
};
return(node2);
}
else if (jta != null && jta.NativeArrayEnumerator)
{
VariableIteratorCounter++;
var iteratorName = "$i" + VariableIteratorCounter;
var lengthCacheName = "$l" + VariableIteratorCounter;
var exp2 = VisitExpression(node.InExpression);
var target = exp2;
var targetCacheName = "$t" + VariableIteratorCounter;
if (exp2 is JMemberExpression || ((JMemberExpression)exp2).PreviousMember != null)//is not simple name
{
target = J.Member(targetCacheName);
}
var itemAccess = target.IndexerAccess(J.Member(iteratorName));
var node2 = new JForStatement();
node2.Condition = J.Member(iteratorName).LessThan(J.Member(lengthCacheName));
node2.Iterators = new List <JStatement> {
J.Member(iteratorName).PlusPlus().Statement(), J.Member(node.VariableName).Assign(itemAccess).Statement()
};
if (target != exp2)//use target caching
{
node2.Initializers = new List <JStatement> {
J.Var(iteratorName, iteratorType.JAccess(), J.Value(0)).AndVar(targetCacheName, exp2).AndVar(lengthCacheName, target.Member("length")).AndVar(node.VariableName, itemAccess).Statement()
};
}
else
{
node2.Initializers = new List <JStatement> {
J.Var(iteratorName, iteratorType.JAccess(), J.Value(0)).AndVar(lengthCacheName, exp2.Member("length")).AndVar(node.VariableName, itemAccess).Statement()
};
}
node2.Statement = VisitStatement(node.EmbeddedStatement);
return(node2);
}
}
}
var iteratorName2 = "$it" + VariableIteratorCounter;
VariableIteratorCounter++;
var node3 = J.Var(iteratorName2, node.Resolve().Type.JAccess(), VisitExpression(node.InExpression).Member("GetEnumerator").Invoke()).Statement();
var whileNode = J.While(J.Member(iteratorName2).Member("MoveNext").Invoke());
var getCurrentStatement = J.Var(node.VariableName, node.Resolve().Type.JAccess(), J.Member(iteratorName2).Member("get_Current").Invoke()).Statement();
var jsStatement = VisitStatement(node.EmbeddedStatement);
JBlock block;
if (jsStatement is JBlock)
{
block = (JBlock)jsStatement;
}
else
{
block = J.Block().Add(jsStatement);
}
block.Statements.Insert(0, getCurrentStatement);
whileNode.Statement = block;
var block2 = J.Block().Add(node3).Add(whileNode);
return(block2);
}
