func argsFromType(t *types.Type) generator.Args {
return generator.Args{
"type": t,
"OpenAPIDefinitions": types.Ref(openAPICommonPackagePath, "OpenAPIDefinitions"),
"OpenAPIDefinition": types.Ref(openAPICommonPackagePath, "OpenAPIDefinition"),
"SpecSchemaType": types.Ref(specPackagePath, "Schema"),
}
}
// Returns all manually-defined conversion functions in the package.
func getManualConversionFunctions(context *generator.Context, pkg *types.Package, manualMap conversionFuncMap) {
scopeName := types.Ref(conversionPackagePath, "Scope").Name
errorName := types.Ref("", "error").Name
buffer := &bytes.Buffer{}
sw := generator.NewSnippetWriter(buffer, context, "$", "$")
for _, f := range pkg.Functions {
if f.Underlying == nil || f.Underlying.Kind != types.Func {
glog.Errorf("Malformed function: %#v", f)
continue
}
if f.Underlying.Signature == nil {
glog.Errorf("Function without signature: %#v", f)
continue
}
signature := f.Underlying.Signature
// Check whether the function is conversion function.
// Note that all of them have signature:
// func Convert_inType_To_outType(inType, outType, conversion.Scope) error
if signature.Receiver != nil {
continue
}
if len(signature.Parameters) != 3 || signature.Parameters[2].Name != scopeName {
continue
}
if len(signature.Results) != 1 || signature.Results[0].Name != errorName {
continue
}
inType := signature.Parameters[0]
outType := signature.Parameters[1]
if inType.Kind != types.Pointer || outType.Kind != types.Pointer {
continue
}
// Now check if the name satisfies the convention.
// TODO: This should call the Namer directly.
args := argsFromType(inType.Elem, outType.Elem)
sw.Do("Convert_$.inType|public$_To_$.outType|public$", args)
if f.Name.Name == buffer.String() {
key := conversionPair{inType.Elem, outType.Elem}
// We might scan the same package twice, and that's OK.
if v, ok := manualMap[key]; ok && v != nil && v.Name.Package != pkg.Path {
panic(fmt.Sprintf("duplicate static conversion defined: %#v", key))
}
manualMap[key] = f
}
buffer.Reset()
}
}
func (g *genConversion) generateConversion(inType, outType *types.Type, sw *generator.SnippetWriter) {
args := argsFromType(inType, outType).
With("Scope", types.Ref(conversionPackagePath, "Scope"))
sw.Do("func auto"+nameTmpl+"(in *$.inType|raw$, out *$.outType|raw$, s $.Scope|raw$) error {\n", args)
// if no defaulter of form SetDefaults_XXX is defined, do not inline a check for defaulting.
if function, ok := g.manualDefaulters[inType]; ok {
sw.Do("$.|raw$(in)\n", function)
}
g.generateFor(inType, outType, sw)
sw.Do("return nil\n", nil)
sw.Do("}\n\n", nil)
if _, found := g.preexists(inType, outType); found {
// There is a public manual Conversion method: use it.
} else if skipped := g.skippedFields[inType]; len(skipped) != 0 {
// The inType had some fields we could not generate.
glog.Errorf("Warning: could not find nor generate a final Conversion function for %v -> %v", inType, outType)
glog.Errorf(" the following fields need manual conversion:")
for _, f := range skipped {
glog.Errorf(" - %v", f)
}
} else {
// Emit a public conversion function.
sw.Do("func "+nameTmpl+"(in *$.inType|raw$, out *$.outType|raw$, s $.Scope|raw$) error {\n", args)
sw.Do("return auto"+nameTmpl+"(in, out, s)\n", args)
sw.Do("}\n\n", nil)
}
}
func (g *genDeepCopy) GenerateType(c *generator.Context, t *types.Type, w io.Writer) error {
if !g.needsGeneration(t) {
return nil
}
glog.V(5).Infof("generating for type %v", t)
sw := generator.NewSnippetWriter(w, c, "$", "$")
args := argsFromType(t).
With("clonerType", types.Ref(conversionPackagePath, "Cloner"))
sw.Do("func $.type|dcFnName$(in interface{}, out interface{}, c *$.clonerType|raw$) error {{\n", args)
sw.Do("in := in.(*$.type|raw$)\nout := out.(*$.type|raw$)\n", argsFromType(t))
g.generateFor(t, sw)
sw.Do("return nil\n", nil)
sw.Do("}}\n\n", nil)
return sw.Error()
}