/// <summary>
/// Builds the proper <see cref="StatementASTWalker"/> given the provided <see cref="StatementSyntax"/>.
/// </summary>
/// <returns></returns>
public IASTWalker Build()
{
switch (this.node.Kind())
{
case SyntaxKind.BreakStatement:
case SyntaxKind.ContinueStatement:
return(KeywordStatementASTWalker.Create(this.node, this.semanticModel));
case SyntaxKind.CheckedStatement:
case SyntaxKind.DoStatement:
case SyntaxKind.EmptyStatement:
return(null);
case SyntaxKind.FixedStatement:
case SyntaxKind.ForEachStatement:
case SyntaxKind.ForStatement:
case SyntaxKind.GlobalStatement:
case SyntaxKind.GotoCaseStatement:
case SyntaxKind.GotoDefaultStatement:
case SyntaxKind.GotoStatement:
return(null);
case SyntaxKind.IfStatement:
return(ConditionalStatementASTWalker.Create(this.node, this.semanticModel));
case SyntaxKind.LabeledStatement:
return(null);
case SyntaxKind.LocalDeclarationStatement:
return(LocalDeclarationStatementASTWalker.Create(this.node, this.semanticModel));
case SyntaxKind.ExpressionStatement:
case SyntaxKind.ReturnStatement:
case SyntaxKind.ThrowStatement:
return(ExpressionStatementASTWalker.Create(this.node, this.semanticModel));
case SyntaxKind.SwitchStatement:
case SyntaxKind.TryStatement:
case SyntaxKind.UncheckedStatement:
case SyntaxKind.UsingStatement:
case SyntaxKind.WhileStatement:
return(null);
// Unsupported stuff
case SyntaxKind.UnsafeStatement:
case SyntaxKind.LockStatement:
case SyntaxKind.YieldBreakStatement:
case SyntaxKind.YieldReturnStatement:
throw new UnsupportedSyntaxException(this.node);
}
throw new InvalidOperationException("Building path reached an invalid non decidible state!");
}
/// <summary>
/// Copy initializes a new instance of the <see cref="KeywordStatementASTWalker"/> class.
/// </summary>
/// <param name="other"></param>
/// <remarks>
/// For testability.
/// </remarks>
public KeywordStatementASTWalker(KeywordStatementASTWalker other)
: base(other)
{
}
/// <summary>
/// Copy initializes a new instance of the <see cref="KeywordStatementASTWalker"/> class.
/// </summary>
/// <param name="other"></param>
/// <remarks>
/// For testability.
/// </remarks>
public KeywordStatementASTWalker(KeywordStatementASTWalker other)
: base(other)
{
}