/// <summary>
/// Reads the next do-while-statement from the file and returns it.
/// </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 statement.
/// </returns>
private DoWhileStatement ParseDoWhileStatement(Reference<ICodePart> parentReference, bool unsafeCode)
{
Param.AssertNotNull(parentReference, "parentReference");
Param.Ignore(unsafeCode);
Reference<ICodePart> statementReference = new Reference<ICodePart>();
// Add the do keyword.
CsToken firstToken = this.GetToken(CsTokenType.Do, SymbolType.Do, parentReference, statementReference);
Node<CsToken> firstTokenNode = this.tokens.InsertLast(firstToken);
// Get the attached statement.
Statement childStatement = this.GetNextStatement(statementReference, unsafeCode);
if (childStatement == null || childStatement.Tokens.First == null)
{
throw new SyntaxException(this.document.SourceCode, firstToken.LineNumber);
}
// Get the while keyword and add it.
this.tokens.Add(this.GetToken(CsTokenType.WhileDo, SymbolType.While, statementReference));
// Get the opening parenthesis and add it.
Bracket openParenthesis = this.GetBracketToken(CsTokenType.OpenParenthesis, SymbolType.OpenParenthesis, statementReference);
Node<CsToken> openParenthesisNode = this.tokens.InsertLast(openParenthesis);
// Get the expression within the parenthesis.
Expression expression = this.GetNextExpression(ExpressionPrecedence.None, statementReference, unsafeCode);
if (expression == null)
{
throw this.CreateSyntaxException();
}
// Get the closing parenthesis.
Bracket closeParenthesis = this.GetBracketToken(CsTokenType.CloseParenthesis, SymbolType.CloseParenthesis, statementReference);
Node<CsToken> closeParenthesisNode = this.tokens.InsertLast(closeParenthesis);
openParenthesis.MatchingBracketNode = closeParenthesisNode;
closeParenthesis.MatchingBracketNode = openParenthesisNode;
// Get the closing semicolon.
this.tokens.Add(this.GetToken(CsTokenType.Semicolon, SymbolType.Semicolon, statementReference));
// Create the token list for the statement.
CsTokenList partialTokens = new CsTokenList(this.tokens, firstTokenNode, this.tokens.Last);
// Create and return the do-while-statement.
DoWhileStatement statement = new DoWhileStatement(partialTokens, expression, childStatement);
statementReference.Target = statement;
return statement;
}
/// <summary>
/// The save.
/// </summary>
/// <param name="doWhileStatement">
/// The do while statement.
/// </param>
private void Save(DoWhileStatement doWhileStatement)
{
this.cppWriter.Write("do");
this.Save(doWhileStatement.EmbeddedStatement);
this.cppWriter.Write("while (");
@switch(doWhileStatement.ConditionalExpression);
this.cppWriter.WriteLine(")");
}