Method genJNIConstructor

bind/genjava.go:1120–1166

(f *types.Func, sName string)

}

func (g *JavaGen) genJNIConstructor(f *types.Func, sName string) {
	if !g.isConsSigSupported(f.Type()) {
		return
	}
	sig := f.Type().(*types.Signature)
	res := sig.Results()

	g.Printf("JNIEXPORT jint JNICALL\n")
	g.Printf("Java_%s_%s_%s(JNIEnv *env, jclass clazz", g.jniPkgName(), java.JNIMangle(g.javaTypeName(sName)), java.JNIMangle("__"+f.Name()))
	params := sig.Params()
	for i := 0; i < params.Len(); i++ {
		v := params.At(i)
		jt := g.jniType(v.Type())
		g.Printf(", %s %s", jt, g.paramName(params, i))
	}
	g.Printf(") {\n")
	g.Indent()
	for i := 0; i < params.Len(); i++ {
		name := g.paramName(params, i)
		g.genJavaToC(name, params.At(i).Type(), modeTransient)
	}
	// Constructors always return a mandatory *T and an optional error
	if res.Len() == 1 {
		g.Printf("int32_t refnum = proxy%s__%s(", g.pkgPrefix, f.Name())
	} else {
		g.Printf("struct proxy%s__%s_return res = proxy%s__%s(", g.pkgPrefix, f.Name(), g.pkgPrefix, f.Name())
	}
	for i := 0; i < params.Len(); i++ {
		if i > 0 {
			g.Printf(", ")
		}
		g.Printf("_%s", g.paramName(params, i))
	}
	g.Printf(");\n")
	for i := 0; i < params.Len(); i++ {
		g.genRelease(g.paramName(params, i), params.At(i).Type(), modeTransient)
	}
	// Extract multi returns and handle errors
	if res.Len() == 2 {
		g.Printf("int32_t refnum = res.r0;\n")
		g.genCToJava("_err", "res.r1", res.At(1).Type(), modeRetained)
		g.Printf("go_seq_maybe_throw_exception(env, _err);\n")
	}
	g.Printf("return refnum;\n")
	g.Outdent()
	g.Printf("}\n\n")
}

func (g *JavaGen) genJNIFunc(o *types.Func, sName string, jm *java.Func, proxy, isjava bool) {
	if !g.isSigSupported(o.Type()) {