/// <summary>
/// Reads the next switch-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 SwitchStatement ParseSwitchStatement(Reference<ICodePart> parentReference, bool unsafeCode)
{
Param.AssertNotNull(parentReference, "parentReference");
Param.Ignore(unsafeCode);
Reference<ICodePart> statementReference = new Reference<ICodePart>();
// Move past the switch keyword.
CsToken firstToken = this.GetToken(CsTokenType.Switch, SymbolType.Switch, 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 inner expression.
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 opening curly bracket.
Bracket openingBracket = this.GetBracketToken(CsTokenType.OpenCurlyBracket, SymbolType.OpenCurlyBracket, statementReference);
Node<CsToken> openingBracketNode = this.tokens.InsertLast(openingBracket);
// Get the case and default statements.
SwitchDefaultStatement defaultStatement;
List<SwitchCaseStatement> caseStatements = this.ParseSwitchStatementCaseStatements(statementReference, unsafeCode, out defaultStatement);
// Get the closing curly bracket.
Bracket closingBracket = this.GetBracketToken(CsTokenType.CloseCurlyBracket, SymbolType.CloseCurlyBracket, statementReference);
Node<CsToken> closingBracketNode = this.tokens.InsertLast(closingBracket);
openingBracket.MatchingBracketNode = closingBracketNode;
closingBracket.MatchingBracketNode = openingBracketNode;
// Create the token list for the statement.
CsTokenList partialTokens = new CsTokenList(this.tokens, firstTokenNode, this.tokens.Last);
// Create and return the switch-statement.
SwitchStatement statement = new SwitchStatement(partialTokens, expression, caseStatements.ToArray(), defaultStatement);
statementReference.Target = statement;
return statement;
}
/// <summary>
/// The save.
/// </summary>
/// <param name="switchStatement">
/// The switch statement.
/// </param>
private void Save(SwitchStatement switchStatement)
{
this.cppWriter.Write("switch (");
@switch(switchStatement.SwitchItem);
this.cppWriter.WriteLine(")");
this.SetMarkBeginOfBlock();
this.cppWriter.WriteLine("{");
@switch(switchStatement.CaseStatements);
this.cppWriter.Indent++;
this.cppWriter.WriteLine();
@switch(switchStatement.DefaultStatement);
this.cppWriter.Indent--;
this.cppWriter.WriteLine("}");
this.SetMarkEndOfBlock();
}
