/// <summary>
/// Gets a query continuation clause.
/// </summary>
/// <param name="parentReference">The parent code unit.</param>
/// <param name="unsafeCode">Indicates whether the code being parsed resides
/// in an unsafe code block.</param>
/// <returns>Returns the query continuation clause.</returns>
private QueryContinuationClause GetQueryContinuationClause(Reference<ICodePart> parentReference, bool unsafeCode)
{
Param.AssertNotNull(parentReference, "parentReference");
Param.Ignore(unsafeCode);
// Get and add the 'into' symbol.
Symbol symbol = this.GetNextSymbol(SymbolType.Other, parentReference);
Debug.Assert(symbol.Text == "into", "Expected an into keyword");
var clauseReference = new Reference<ICodePart>();
Node<CsToken> firstTokenNode = this.tokens.InsertLast(this.GetToken(CsTokenType.Into, SymbolType.Other, clauseReference));
// Get the identifier.
Variable rangeVariable = this.GetVariable(clauseReference, unsafeCode, true, true);
if (rangeVariable == null)
{
throw this.CreateSyntaxException();
}
// Get the continuation clauses.
List<QueryClause> clauses = new List<QueryClause>();
// The variables defined by the clauses under this continuation clause.
List<Variable> variables = new List<Variable>();
// Extract the clauses.
CsTokenList continuationClauseTokens = this.GetQueryExpressionClauses(clauseReference, unsafeCode, clauses, variables);
if (clauses.Count == 0 || continuationClauseTokens.First == null)
{
throw this.CreateSyntaxException();
}
// Create and return the clause.
QueryContinuationClause continuationClause = new QueryContinuationClause(
new CsTokenList(this.tokens, firstTokenNode, continuationClauseTokens.Last),
rangeVariable,
clauses.ToArray());
clauseReference.Target = continuationClause;
continuationClause.Variables.AddRange(variables);
return continuationClause;
}
private QueryContinuationClause GetQueryContinuationClause(bool unsafeCode)
{
this.GetNextSymbol(SymbolType.Other);
Microsoft.StyleCop.Node<CsToken> firstItemNode = this.tokens.InsertLast(this.GetToken(CsTokenType.Into, SymbolType.Other));
Variable variable = this.GetVariable(unsafeCode, true, true);
if (variable == null)
{
throw this.CreateSyntaxException();
}
List<QueryClause> clauses = new List<QueryClause>();
List<Variable> variables = new List<Variable>();
CsTokenList list3 = this.GetQueryExpressionClauses(unsafeCode, clauses, variables);
if ((clauses.Count == 0) || (list3.First == null))
{
throw this.CreateSyntaxException();
}
QueryContinuationClause clause = new QueryContinuationClause(new CsTokenList(this.tokens, firstItemNode, list3.Last), variable, clauses.ToArray());
clause.Variables.AddRange(variables);
return clause;
}
