/// <summary>
/// Finds the matching nodes of a <see cref="IManifestCharacterExpression"/>.
/// </summary>
/// <param name="node">The agent expression to check.</param>
/// <param name="errorList">The list of errors found.</param>
/// <param name="resolvedResult">The expression result types upon return.</param>
/// <param name="resolvedException">Exceptions the expression can throw upon return.</param>
/// <param name="constantSourceList">Sources of the constant expression upon return, if any.</param>
/// <param name="expressionConstant">The expression constant upon return.</param>
public static bool ResolveCompilerReferences(IManifestCharacterExpression node, IErrorList errorList, out IResultType resolvedResult, out IResultException resolvedException, out ISealableList <IExpression> constantSourceList, out ILanguageConstant expressionConstant)
{
resolvedResult = null;
resolvedException = null;
constantSourceList = new SealableList <IExpression>();
expressionConstant = NeutralLanguageConstant.NotConstant;
IClass EmbeddingClass = node.EmbeddingClass;
string ValidText = node.ValidText.Item;
Debug.Assert(ValidText.Length == 1);
char ValidChar = ValidText[0];
if (!Expression.IsLanguageTypeAvailable(LanguageClasses.Character.Guid, node, out ITypeName CharacterTypeName, out ICompiledType CharacterType))
{
errorList.AddError(new ErrorCharacterTypeMissing(node));
return(false);
}
resolvedResult = new ResultType(CharacterTypeName, CharacterType, string.Empty);
resolvedException = new ResultException();
expressionConstant = new CharacterLanguageConstant(ValidChar);
#if COVERAGE
Debug.Assert(!node.IsComplex);
#endif
return(true);
}
/// <summary>
/// Compares two expressions.
/// </summary>
/// <param name="other">The other expression.</param>
protected bool IsExpressionEqual(IManifestCharacterExpression other)
{
Debug.Assert(other != null);
bool Result = true;
Result &= ValidText.Item == other.ValidText.Item;
return(Result);
}
/// <summary>
/// Initializes a new instance of the <see cref="CSharpManifestCharacterExpression"/> class.
/// </summary>
/// <param name="context">The creation context.</param>
/// <param name="source">The Easly expression from which the C# expression is created.</param>
protected CSharpManifestCharacterExpression(ICSharpContext context, IManifestCharacterExpression source)
: base(context, source)
{
}
/// <summary>
/// Creates a new C# expression.
/// </summary>
/// <param name="context">The creation context.</param>
/// <param name="source">The Easly expression from which the C# expression is created.</param>
public static ICSharpManifestCharacterExpression Create(ICSharpContext context, IManifestCharacterExpression source)
{
return(new CSharpManifestCharacterExpression(context, source));
}
