private Statement ProcessForeachStatement(ForeachNode node)
{
TypeSymbol type = _symbolSet.ResolveType(node.Type, _symbolTable, _memberContext);
Debug.Assert(type != null);
bool dictionaryContainer = (type.Name == "DictionaryEntry") || (type.Name == "KeyValuePair`2");
Expression collectionExpression = _expressionBuilder.BuildExpression(node.Container);
if (collectionExpression is MemberExpression)
{
collectionExpression = _expressionBuilder.TransformMemberExpression((MemberExpression)collectionExpression);
}
ForInStatement statement;
if (dictionaryContainer)
{
VariableSymbol dictionaryVariable = null;
if (collectionExpression.Type != ExpressionType.Local)
{
string dictionaryVariableName = _symbolTable.CreateSymbolName("dict");
dictionaryVariable = new VariableSymbol(dictionaryVariableName, _memberContext,
collectionExpression.EvaluatedType);
}
statement = new ForInStatement(collectionExpression, dictionaryVariable);
string keyVariableName = _symbolTable.CreateSymbolName("key");
VariableSymbol keyVariable = new VariableSymbol(keyVariableName, _memberContext,
_symbolSet.ResolveIntrinsicType(IntrinsicType.String));
statement.SetLoopVariable(keyVariable);
}
else
{
statement = new ForInStatement(collectionExpression);
string enumeratorVariableName = _symbolTable.CreateSymbolName("enum");
VariableSymbol enumVariable = new VariableSymbol(enumeratorVariableName, _memberContext,
_symbolSet.ResolveIntrinsicType(IntrinsicType.IEnumerator));
statement.SetLoopVariable(enumVariable);
}
_symbolTable.PushScope();
VariableSymbol itemVariable = new VariableSymbol(node.Name.Name, _memberContext, type);
_symbolTable.AddSymbol(itemVariable);
statement.SetItemVariable(itemVariable);
Statement body = BuildStatement((StatementNode)node.Body);
statement.AddBody(body);
_symbolTable.PopScope();
return(statement);
}
private void BindGlobalVariable(VariableDeclarationStatementSyntax variableDeclarationStatementSyntax)
{
var declaration = variableDeclarationStatementSyntax.Declaration;
foreach (var declarator in declaration.Variables)
{
var variableType = _symbolSet.ResolveType(declaration.Type, null, null);
foreach (var arrayRankSpecifier in declarator.ArrayRankSpecifiers)
{
variableType = new ArraySymbol(variableType);
}
var symbol = new GlobalVariableSymbol(declarator, variableType);
_bindingResult.AddSymbol(declarator, symbol);
_symbolSet.AddGlobal(symbol);
}
}