func()

in bind/genjava.go [239:355]
105 lines of code
28 McCabe index (conditional complexity)

func (g *JavaGen) genStruct(s structInfo) {
	pkgPath := ""
	if g.Pkg != nil {
		pkgPath = g.Pkg.Path()
	}
	n := g.javaTypeName(s.obj.Name())
	g.Printf(javaPreamble, g.javaPkgName(g.Pkg), n, g.gobindOpts(), pkgPath)

	fields := exportedFields(s.t)
	methods := exportedMethodSet(types.NewPointer(s.obj.Type()))

	var impls []string
	jinf := g.jstructs[s.obj]
	if jinf != nil {
		impls = append(impls, "Seq.GoObject")
		for _, cls := range jinf.supers {
			if cls.Interface {
				impls = append(impls, g.javaTypeName(cls.Name))
			}
		}
	} else {
		impls = append(impls, "Seq.Proxy")
	}

	pT := types.NewPointer(s.obj.Type())
	for _, iface := range g.allIntf {
		if types.AssignableTo(pT, iface.obj.Type()) {
			n := iface.obj.Name()
			if p := iface.obj.Pkg(); p != g.Pkg {
				if n == JavaClassName(p) {
					n = n + "_"
				}
				n = fmt.Sprintf("%s.%s", g.javaPkgName(p), n)
			} else {
				n = g.javaTypeName(n)
			}
			impls = append(impls, n)
		}
	}

	doc := g.docs[n]
	g.javadoc(doc.Doc())
	g.Printf("public final class %s", n)
	if jinf != nil {
		if jinf.extends != nil {
			g.Printf(" extends %s", g.javaTypeName(jinf.extends.Name))
		}
	}
	if len(impls) > 0 {
		g.Printf(" implements %s", strings.Join(impls, ", "))
	}
	g.Printf(" {\n")
	g.Indent()

	g.Printf("static { %s.touch(); }\n\n", g.className())
	g.genProxyImpl(n)
	cons := g.constructors[s.obj]
	for _, f := range cons {
		if !g.isConsSigSupported(f.Type()) {
			g.Printf("// skipped constructor %s.%s with unsupported parameter or return types\n\n", n, f.Name())
			continue
		}
		g.genConstructor(f, n, jinf != nil)
	}
	if jinf == nil || jinf.genNoargCon {
		// constructor for Go instantiated instances.
		g.Printf("%s(int refnum) { this.refnum = refnum; Seq.trackGoRef(refnum, this); }\n\n", n)
		if len(cons) == 0 {
			// Generate default no-arg constructor
			g.Printf("public %s() { this.refnum = __New(); Seq.trackGoRef(refnum, this); }\n\n", n)
			g.Printf("private static native int __New();\n\n")
		}
	}

	for _, f := range fields {
		if t := f.Type(); !g.isSupported(t) {
			g.Printf("// skipped field %s.%s with unsupported type: %s\n\n", n, f.Name(), t)
			continue
		}

		fdoc := doc.Member(f.Name())
		g.javadoc(fdoc)
		g.Printf("public final native %s get%s();\n", g.javaType(f.Type()), f.Name())
		g.javadoc(fdoc)
		g.Printf("public final native void set%s(%s v);\n\n", f.Name(), g.javaType(f.Type()))
	}

	var isStringer bool
	for _, m := range methods {
		if !g.isSigSupported(m.Type()) {
			g.Printf("// skipped method %s.%s with unsupported parameter or return types\n\n", n, m.Name())
			continue
		}
		g.javadoc(doc.Member(m.Name()))
		var jm *java.Func
		hasThis := false
		if jinf != nil {
			hasThis = g.hasThis(n, m)
			jm = jinf.lookupMethod(m, hasThis)
			if jm != nil {
				g.Printf("@Override ")
			}
		}
		g.Printf("public native ")
		g.genFuncSignature(m, jm, hasThis)
		t := m.Type().(*types.Signature)
		isStringer = isStringer || (m.Name() == "String" && t.Params().Len() == 0 && t.Results().Len() == 1 &&
			types.Identical(t.Results().At(0).Type(), types.Typ[types.String]))
	}

	if jinf == nil {
		g.genObjectMethods(n, fields, isStringer)
	}

	g.Outdent()
	g.Printf("}\n\n")
}