Source generation utilities

Utilities for easy implementation of source generators. A big thanks to TheArchitectDev for providing many of these extensions.

Check out CodeChops projects for more projects.

Extensions

AttributeDataExtensions

• TryGetArguments: Tries to get the arguments of the attribute.
• GetArgumentOrDefault: Gets the value of the attribute argument, or the (provided) default value if the argument was not provided.
• TryGetArgument: Tries to get the value of the attribute argument.

NamespaceSymbolExtensions

• IsInSystemNamespace**: Returns whether the given INamedTypeSymbol is or resides in the System namespace.
• HasFullName**: Returns whether the given INamedTypeSymbol has the given 'fullName'.

NameSyntaxExtensions

• HasAttributeName: Checks if a name syntax has a specific attribute of provided 'expectedName'.
• ExtractAttributeName: Extracts the attribute name from the name syntax.

StringBuilderExtensions

• TrimEnd: Trims the end of a StringBuilder.
• AppendLine: Appends the StringBuilder with the provided text retriever (Func<string?>) and adds a newline if the resulting text is not null.

StringExtensions

• ToTitleCase: Returns the input with the first character converted to uppercase.
• NormalizeWhitespace**: Normalizes the whitespace for the given C# source code as much as possible.
• GetStableHashCode32**: Gets a stable hash code (int).
• GetStableHashCode64**: Gets a stable hash code (ulong).
• GetStableStringHashCode32**: Gets a stable int hash code as string.
• GetStableStringHashCode64**: Gets a stable ulong hash code as string.
• ToBase32Chars8**: Converts the given 8 bytes to 13 base32 chars.
• Write: Returns specific text when the provided value is not null.

TypeDeclarationSyntaxExtensions

• GetClassGenericConstraints: Gets the generic constraints of a TypeDeclarationSyntax.
• GetUsings: Gets the usings of a TypeDeclarationSyntax.

TypeSymbolExtensions

• IsType**: Returns whether the ITypeSymbol is of a specific type.
• IsOrInheritsClass**: Returns whether the ITypeSymbol is or inherits from a certain class, as determined by the given predicate.
• IsOrImplementsInterface**: Returns whether the ITypeSymbol is or implements a certain interface, as determined by the given predicate.
• HasSingleGenericTypeArgument**: Returns whether the is a constructed generic type with a single type argument matching the provided 'requiredTypeArgument'.
• IsNumeric: Returns whether the represents an numeric type, such as an int or ulong.
• IsGeneric**: Returns whether the is a generic type (with the given number of type parameters).
• IsNullable**: Returns whether the is a Nullable<T>.
• IsSelfEquatable**: Returns whether the given implements IEquatable{T} against itself.
• IsComparable**: Returns whether the implements any IComparable or interface.
• IsEnumerable**: Returns whether the is or implements System.Collections.IEnumerable.
• HasEqualsOverride**: Returns whether the or a base type has an override of more specific than Object's implementation.
• HasAttribute**: Returns whether the is annotated with the specified attribute(s).
• HasConversionTo**: Returns whether the defines a conversion to the specified type.
• HasConversionFrom**: Returns whether the defines a conversion from the specified type.
• GetAvailableConversionsFromNatives**: Enumerates the native types (string, int, bool, decimal, double, char, etc.) from which the given is convertible.
• CreateStringExpression**: Returns the code for a string expression of the given of "this".
• CreateComparisonExpression**: Returns the code for a comparison expression on the given 'memberName' between "this" and "other".
• GetFullTypeNameWithoutGenericParameters: Converts names like string to global::System.String excluding generic parameter names (if used).
• GetFullTypeNameWithGenericParameters: Converts names like string to global::System.String including generic parameter names (if used).
• GetTypeNameWithGenericParameters: Gets the type name including generic parameters (without namespace).
• GetTypeKindName: Gets the name of the TypeKind. For example: a record class will be 'record class', an interface will be 'interface'.
• GetObjectDeclaration: Gets the declaration of a class, record or interface. E.g.: 'public abstract (partial) class Test'.

Helpers

FileNameHelpers

• GetFileName: Gets a unique source generation file name (takes namespaces and generic parameters into account).
  • Removes 'global::' from the start of the name if it exists.
  • Replaces invalid file name characters to '_'.
  • Removes the root namespace of the source assembly from the start file name.
  • Adds suffix '.g.cs' to the file name, if needed.

NameHelpers

• GetNameWithoutGenerics: Gets the name without generic parameters.
• HasGenericParameter: Checks if a name contains a generic parameter.
• GetNameWithGenerics: Gets the name of a class including the generic types. E.g: System.Collections.Generic.Dictionary'2 becomes System.Collections.Generic.Dictionary<System.String,System.Object>.

** Has been provided by TheArchitectDev.