func()

in bind/genobjc.go [140:252]

• 96 lines of code
• 28 McCabe index (conditional complexity)

func (g *ObjcGen) GenH() error {
	var pkgPath string
	if g.Pkg != nil {
		pkgPath = g.Pkg.Path()
	}
	g.Printf(objcPreamble, pkgPath, g.gobindOpts(), pkgPath)
	g.Printf("#ifndef __%s_H__\n", g.namePrefix)
	g.Printf("#define __%s_H__\n", g.namePrefix)
	g.Printf("\n")
	for _, m := range g.modules {
		g.Printf("@import %s;\n", m)
	}
	g.Printf("#include \"ref.h\"\n")
	if g.Pkg != nil {
		g.Printf("#include \"Universe.objc.h\"\n\n")
	}

	if g.Pkg != nil {
		for _, pkg := range g.Pkg.Imports() {
			if g.validPkg(pkg) {
				g.Printf("#include %q\n", g.namePrefixOf(pkg)+".objc.h")
			}
		}
	}
	g.Printf("\n")

	// Forward declaration of @class and @protocol
	for _, s := range g.structs {
		g.Printf("@class %s%s;\n", g.namePrefix, s.obj.Name())
	}
	for _, i := range g.interfaces {
		g.Printf("@protocol %s%s;\n", g.namePrefix, i.obj.Name())
		if i.summary.implementable {
			g.Printf("@class %s%s;\n", g.namePrefix, i.obj.Name())
			// Forward declaration for other cases will be handled at the beginning of GenM.
		}
	}
	if len(g.structs) > 0 || len(g.interfaces) > 0 {
		g.Printf("\n")
	}

	// @interfaces
	for _, i := range g.interfaces {
		g.genInterfaceH(i.obj, i.t)
		g.Printf("\n")
	}
	for _, s := range g.structs {
		g.genStructH(s.obj, s.t)
		g.Printf("\n")
	}

	// const
	// TODO: prefix with k?, or use a class method?
	for _, obj := range g.constants {
		if _, ok := obj.Type().(*types.Basic); !ok || !g.isSupported(obj.Type()) {
			g.Printf("// skipped const %s with unsupported type: %s\n\n", obj.Name(), obj.Type())
			continue
		}
		g.objcdoc(g.docs[obj.Name()].Doc())
		switch b := obj.Type().(*types.Basic); b.Kind() {
		case types.String, types.UntypedString:
			g.Printf("FOUNDATION_EXPORT NSString* _Nonnull const %s%s;\n", g.namePrefix, obj.Name())
		default:
			g.Printf("FOUNDATION_EXPORT const %s %s%s;\n", g.objcType(obj.Type()), g.namePrefix, obj.Name())
		}
	}
	if len(g.constants) > 0 {
		g.Printf("\n")
	}

	// var
	if len(g.vars) > 0 {
		g.Printf("@interface %s : NSObject\n", g.namePrefix)
		for _, obj := range g.vars {
			if t := obj.Type(); !g.isSupported(t) {
				g.Printf("// skipped variable %s with unsupported type: %s\n\n", obj.Name(), t)
				continue
			}
			objcType := g.objcType(obj.Type())
			g.objcdoc(g.docs[obj.Name()].Doc())
			g.Printf("+ (%s) %s;\n", objcType, objcNameReplacer(lowerFirst(obj.Name())))
			g.Printf("+ (void) set%s:(%s)v;\n", obj.Name(), objcType)
			g.Printf("\n")
		}
		g.Printf("@end\n\n")
	}

	// static functions.
	for _, obj := range g.funcs {
		g.genFuncH(obj)
		g.Printf("\n")
	}

	for _, i := range g.interfaces {
		if i.summary.implementable {
			g.Printf("@class %s%s;\n\n", g.namePrefix, i.obj.Name())
		}
	}
	for _, i := range g.interfaces {
		if i.summary.implementable {
			// @interface Interface -- similar to what genStructH does.
			g.genInterfaceInterface(i.obj, i.summary, true)
			g.Printf("\n")
		}
	}

	g.Printf("#endif\n")

	if len(g.err) > 0 {
		return g.err
	}
	return nil
}