// Tests an invalid script
private static void AssertIsInvalid(string script, int position, SyntaxError error)
{
SyntaxValidationResult result = Brainf_ckParser.ValidateSyntax(script);
Assert.IsFalse(result.IsSuccess);
Assert.AreEqual(result.ErrorOffset, position);
Assert.AreEqual(result.ErrorType, error);
}
// Tests a valid script
private static void AssertIsValid(string script)
{
SyntaxValidationResult result = Brainf_ckParser.ValidateSyntax(script);
Assert.IsTrue(result.IsSuccess);
Assert.AreEqual(result.ErrorOffset, -1);
Assert.AreEqual(result.ErrorType, SyntaxError.None);
}
public static MemoryOwner <Brainf_ckOperator>?TryParse(ReadOnlySpan <char> source, out SyntaxValidationResult validationResult)
{
// Check the syntax of the input source code
validationResult = ValidateSyntax(source);
if (!validationResult.IsSuccess)
{
return(null);
}
// Allocate the buffer of binary items with the input operators
MemoryOwner <Brainf_ckOperator> operators = MemoryOwner <Brainf_ckOperator> .Allocate(validationResult.OperatorsCount);
ref char sourceRef = ref source.DangerousGetReference();
public static string Convert(SyntaxValidationResult result)
{
string message = ResourceLoader.GetString($"{nameof(SyntaxError)}/{result.ErrorType}");
return($"{message}, {Operator} {result.ErrorOffset}");
}
/// <summary>
/// Creates a new <see cref="TextChangedEventArgs"/> instance with the specified parameters
/// </summary>
/// <param name="plainText">The currently displayed plain text</param>
/// <param name="validationResult">The <see cref="SyntaxValidationResult"/> instance for the currently displayed text</param>
internal TextChangedEventArgs(string plainText, SyntaxValidationResult validationResult)
{
PlainText = plainText;
ValidationResult = validationResult;
}
/// <summary> /// Creates a new <see cref="ConsoleSyntaxError"/> instance with the specified parameters /// </summary> /// <param name="result">The <see cref="SyntaxValidationResult"/> instance for the executed command</param> public ConsoleSyntaxError(SyntaxValidationResult result) => Result = result;
/// <summary>
/// Creates a new <see cref="Option{T}"/> instance for a script parsed successfully
/// </summary>
/// <param name="validationResult">The <see cref="SyntaxValidationResult"/> instance that indicates the parsing result for the input script</param>
/// <param name="value">The <typeparamref name="T"/> result for the current execution</param>
/// <returns>An <see cref="Option{T}"/> instance for a script parsed successfully</returns>
internal static Option <T> From(SyntaxValidationResult validationResult, T value)
{
return(new Option <T>(validationResult, value));
}
/// <summary>
/// Creates a new <see cref="Option{T}"/> instance for an invalid script
/// </summary>
/// <param name="validationResult">The <see cref="SyntaxValidationResult"/> instance that indicates the parsing result for the input script</param>
/// <returns>An <see cref="Option{T}"/> instance for a script not parsed successfully</returns>
internal static Option <T> From(SyntaxValidationResult validationResult)
{
return(new Option <T>(validationResult, null));
}
/// <summary>
/// Creates a new <see cref="Option{T}"/> instance with the specified parameters
/// </summary>
/// <param name="validationResult">The <see cref="SyntaxValidationResult"/> instance that indicates the parsing result for the input script</param>
/// <param name="value">The <typeparamref name="T"/> result for the current execution, if available</param>
private Option(SyntaxValidationResult validationResult, T?value)
{
ValidationResult = validationResult;
Value = value;
}
public static MemoryOwner<Brainf_ckOperation>? TryParse(ReadOnlySpan<char> source, out SyntaxValidationResult validationResult)
{
// Check the syntax of the input source code
validationResult = ValidateSyntax(source);
if (!validationResult.IsSuccess) return null;
// Allocate the buffer of binary items with the input operations
using SpanOwner<Brainf_ckOperation> buffer = SpanOwner<Brainf_ckOperation>.Allocate(validationResult.OperatorsCount);
ref Brainf_ckOperation bufferRef = ref buffer.DangerousGetReference();
