genmain

type Data struct {
	// Module is the Go Module name that the generator is running for. An
	// example is "github.com/diamondburned/gotk4/pkg".
	Module string
	// Packages lists pkg-config packages and optionally the namespaces to be
	// generated. If the list of namespaces is nil, then everything is
	// generated.
	Packages []Package
	// KnownPackages is similar to Packages, but no packages in this list will
	// be used to generate code. This list automatically includes Packages.
	KnownPackages []Package
	// ImportOverrides is the list of imports to defer to another library,
	// usually because it's tedious or impossible to generate.
	//
	// Not included: coreglib (gotk3/gotk3/glib).
	ImportOverrides map[string]string
	// ExternOverrides adds into ImportOverrides packages that were generated
	// from the given GIR repositories, with the map key being the Go module
	// root for those packages. It internally invokes LoadExternOverrides.
	ExternOverrides map[string]gir.Repositories
	// PkgExceptions contains a list of file names that won't be deleted off of
	// pkg/.
	PkgExceptions []string
	// GenerateExceptions contains the keys of the underneath ImportOverrides
	// map.
	GenerateExceptions []string
	// PkgGenerated contains a list of file names that are packages generated
	// using the given Packages list. It is manually updated.
	PkgGenerated []string
	// Preprocessors defines a list of preprocessors that the main generator
	// will use. It's mostly used for renaming colliding types/identifiers.
	Preprocessors []types.Preprocessor
	// Postprocessors is a map of versioned namespace names to a list of
	// functions that are called to modify any file before it is written out.
	Postprocessors map[string][]girgen.Postprocessor
	// ExtraGoContents contains the contents of files that are appended into
	// generated outputs. It is used to add custom implementations of missing
	// functions. It is a simpler version of Postprocessors.
	ExtraGoContents map[string]string
	// Filters defines a list of GIR types to be filtered. The map key is the
	// namespace, and the values are list of names.
	Filters []types.FilterMatcher
	// ProcessConverters is a list of things that can override a type converter.
	ProcessConverters []typeconv.ConversionProcessor
	// DynamicLinkNamespaces lists namespaces that should be generated directly
	// using Cgo. It includes important core packages as well as packages that
	// are small but performance-sensitive.
	DynamicLinkNamespaces []string
	// SingleFile, if true, will make all NamespaceGenerators generate a single
	// output file per package instead of correlating it to the source file.
	SingleFile bool
}

type Package struct {
	// Name is the pkg-config name.
	Name string
	// Namespaces is the possible namespaces within it. Refer to
	// ./cmd/gir_namespaces.
	Namespaces []string
}