private Statement GetNextStatement(Reference<ICodePart> parentReference, bool unsafeCode, VariableCollection variables)
{
Param.AssertNotNull(parentReference, "parentReference");
Param.Ignore(unsafeCode);
Param.Ignore(variables);
// Saves the next statement.
Statement statement = null;
// Move past comments and whitepace.
if (this.MoveToStatement(parentReference))
{
// Get the next symbol.
Symbol symbol = this.GetNextSymbol(parentReference);
if (symbol != null)
{
switch (symbol.SymbolType)
{
case SymbolType.True:
case SymbolType.False:
case SymbolType.Other:
case SymbolType.Number:
case SymbolType.String:
if (symbol.Text == "yield")
{
statement = this.ParseYieldStatement(parentReference, unsafeCode);
if (statement != null)
{
break;
}
}
if (symbol.Text == "await")
{
statement = this.ParseAwaitStatement(parentReference, unsafeCode);
if (statement != null)
{
break;
}
}
statement = this.ParseOtherStatement(parentReference, unsafeCode, variables);
break;
case SymbolType.OpenCurlyBracket:
statement = this.ParseBlockStatement(unsafeCode);
break;
case SymbolType.If:
statement = this.ParseIfStatement(parentReference, unsafeCode);
break;
case SymbolType.While:
statement = this.ParseWhileStatement(parentReference, unsafeCode);
break;
case SymbolType.Do:
statement = this.ParseDoWhileStatement(parentReference, unsafeCode);
break;
case SymbolType.For:
statement = this.ParseForStatement(parentReference, unsafeCode);
break;
case SymbolType.Foreach:
statement = this.ParseForeachStatement(parentReference, unsafeCode);
break;
case SymbolType.Switch:
statement = this.ParseSwitchStatement(parentReference, unsafeCode);
break;
case SymbolType.Try:
statement = this.ParseTryStatement(parentReference, unsafeCode);
break;
case SymbolType.Lock:
statement = this.ParseLockStatement(parentReference, unsafeCode);
break;
case SymbolType.Using:
statement = this.ParseUsingStatement(parentReference, unsafeCode);
break;
case SymbolType.Checked:
statement = this.ParseCheckedStatement(parentReference, unsafeCode);
break;
case SymbolType.Unchecked:
statement = this.ParseUncheckedStatement(parentReference, unsafeCode);
break;
case SymbolType.Fixed:
statement = this.ParseFixedStatement(parentReference, unsafeCode);
break;
case SymbolType.Unsafe:
statement = this.ParseUnsafeStatement(parentReference);
break;
case SymbolType.Break:
statement = this.ParseBreakStatement(parentReference);
break;
case SymbolType.Continue:
statement = this.ParseContinueStatement(parentReference);
break;
case SymbolType.Goto:
statement = this.ParseGotoStatement(parentReference, unsafeCode);
break;
case SymbolType.Return:
statement = this.ParseReturnStatement(parentReference, unsafeCode);
break;
case SymbolType.Throw:
statement = this.ParseThrowStatement(parentReference, unsafeCode);
break;
case SymbolType.Typeof:
case SymbolType.Sizeof:
case SymbolType.Default:
statement = this.ParseExpressionStatement(unsafeCode);
break;
case SymbolType.Const:
statement = this.ParseVariableDeclarationStatement(parentReference, unsafeCode, variables);
break;
case SymbolType.Increment:
case SymbolType.Decrement:
case SymbolType.New:
case SymbolType.This:
case SymbolType.Base:
case SymbolType.OpenParenthesis:
statement = this.ParseExpressionStatement(unsafeCode);
break;
case SymbolType.Semicolon:
Reference<ICodePart> emptyStatementReference = new Reference<ICodePart>();
Node<CsToken> tokenNode = this.tokens.InsertLast(this.GetToken(CsTokenType.Semicolon, SymbolType.Semicolon, emptyStatementReference));
statement = new EmptyStatement(new CsTokenList(this.tokens, tokenNode, tokenNode));
emptyStatementReference.Target = statement;
break;
case SymbolType.Multiplication:
if (!unsafeCode)
{
goto default;
}
statement = this.ParseExpressionStatement(unsafeCode);
break;
case SymbolType.LogicalAnd:
if (!unsafeCode)
{
goto default;
}
statement = this.ParseExpressionStatement(unsafeCode);
break;
default:
throw new SyntaxException(this.document.SourceCode, symbol.LineNumber);
}
}
}
return statement;
}
/// <summary>
/// The save.
/// </summary>
/// <param name="emptyStatement">
/// The empty statement.
/// </param>
private void Save(EmptyStatement emptyStatement)
{
}
