/// <summary>
/// Get a walker with all mutations for <paramref name="property"/>.
/// </summary>
/// <param name="property">The <see cref="IPropertySymbol"/>.</param>
/// <param name="semanticModel">The <see cref="SemanticModel"/>.</param>
/// <param name="cancellationToken">The <see cref="CancellationToken"/>.</param>
/// <returns>A walker with all mutations for <paramref name="property"/>.</returns>
public static MutationWalker For(IPropertySymbol property, SemanticModel semanticModel, CancellationToken cancellationToken)
{
if (FieldOrProperty.TryCreate(property, out var fieldOrProperty))
{
return(For(fieldOrProperty, semanticModel, cancellationToken));
}
return(Borrow(() => new MutationWalker()));
}
/// <summary>
/// Initializes a new instance of the <see cref="FieldOrPropertyAndDeclaration"/> struct.
/// </summary>
/// <param name="property">The <see cref="IPropertySymbol"/>.</param>
/// <param name="declaration">The <see cref="PropertyDeclarationSyntax"/>.</param>
public FieldOrPropertyAndDeclaration(IPropertySymbol property, PropertyDeclarationSyntax declaration)
{
if (property is null)
{
throw new ArgumentNullException(nameof(property));
}
this.FieldOrProperty = new FieldOrProperty(property);
this.Declaration = declaration ?? throw new ArgumentNullException(nameof(declaration));
}
/// <summary>
/// Initializes a new instance of the <see cref="FieldOrPropertyAndDeclaration"/> struct.
/// </summary>
/// <param name="field">The <see cref="IFieldSymbol"/>.</param>
/// <param name="declaration">The <see cref="FieldDeclarationSyntax"/>.</param>
public FieldOrPropertyAndDeclaration(IFieldSymbol field, FieldDeclarationSyntax declaration)
{
if (field is null)
{
throw new ArgumentNullException(nameof(field));
}
this.FieldOrProperty = new FieldOrProperty(field);
this.Declaration = declaration ?? throw new ArgumentNullException(nameof(declaration));
}
/// <summary>
/// Get a walker with all mutations for <paramref name="symbol"/>.
/// </summary>
/// <param name="symbol">The <see cref="ISymbol"/>.</param>
/// <param name="semanticModel">The <see cref="SemanticModel"/>.</param>
/// <param name="cancellationToken">The <see cref="CancellationToken"/>.</param>
/// <returns>A walker with all mutations for <paramref name="symbol"/>.</returns>
public static MutationWalker For(ISymbol symbol, SemanticModel semanticModel, CancellationToken cancellationToken)
{
if (LocalOrParameter.TryCreate(symbol, out var localOrParameter))
{
return(For(localOrParameter, semanticModel, cancellationToken));
}
if (FieldOrProperty.TryCreate(symbol, out var fieldOrProperty))
{
return(For(fieldOrProperty, semanticModel, cancellationToken));
}
return(Borrow(() => new MutationWalker()));
}
/// <summary>
/// Get a walker with all mutations for <paramref name="fieldOrProperty"/>.
/// </summary>
/// <param name="fieldOrProperty">The <see cref="FieldOrProperty"/>.</param>
/// <param name="semanticModel">The <see cref="SemanticModel"/>.</param>
/// <param name="cancellationToken">The <see cref="CancellationToken"/>.</param>
/// <returns>A walker with all mutations for <paramref name="fieldOrProperty"/>.</returns>
public static MutationWalker For(FieldOrProperty fieldOrProperty, SemanticModel semanticModel, CancellationToken cancellationToken)
{
if (fieldOrProperty.Symbol.ContainingType.TrySingleDeclaration(cancellationToken, out TypeDeclarationSyntax? typeDeclaration))
{
var walker = Borrow(typeDeclaration, SearchScope.Instance, semanticModel, cancellationToken);
walker.assignments.RemoveAll(x => !IsFieldOrProperty(x.Left));
walker.prefixUnaries.RemoveAll(x => !IsFieldOrProperty(x.Operand));
walker.postfixUnaries.RemoveAll(x => !IsFieldOrProperty(x.Operand));
walker.refOrOutArguments.RemoveAll(x => !IsFieldOrProperty(x.Expression));
return(walker);
}
return(Borrow(() => new MutationWalker()));
bool IsFieldOrProperty(ExpressionSyntax expression)
{
return(semanticModel.TryGetSymbol(expression, cancellationToken, out var symbol) &&
SymbolComparer.Equal(symbol, fieldOrProperty.Symbol));
}
}
