/// <summary> /// Reads the next 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 WhileStatement ParseWhileStatement(Reference<ICodePart> parentReference, bool unsafeCode) { Param.AssertNotNull(parentReference, "parentReference"); Param.Ignore(unsafeCode); Reference<ICodePart> statementReference = new Reference<ICodePart>(); // Add the while keyword. CsToken firstToken = this.GetToken(CsTokenType.While, SymbolType.While, parentReference, statementReference); Node<CsToken> firstTokenNode = this.tokens.InsertLast(firstToken); // Get the opening parenthesis. 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 embedded statement. Statement childStatement = this.GetNextStatement(statementReference, unsafeCode); if (childStatement == null) { throw new SyntaxException(this.document.SourceCode, firstToken.LineNumber); } // Create the token list for the statement. CsTokenList partialTokens = new CsTokenList(this.tokens, firstTokenNode, this.tokens.Last); // Create and return the while-statement. WhileStatement statement = new WhileStatement(partialTokens, expression); statement.EmbeddedStatement = childStatement; statementReference.Target = statement; return statement; }
/// <summary> /// The save. /// </summary> /// <param name="whileStatement"> /// The while statement. /// </param> private void Save(WhileStatement whileStatement) { this.cppWriter.Write("while ("); @switch(whileStatement.ConditionExpression); this.cppWriter.Write(")"); this.Save(whileStatement.EmbeddedStatement); }