Support map[string]interface{}.

Fixes #13

go.mod

@@ -6,6 +6,6 @@ require (
 	github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc // indirect
 	github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf // indirect
 	github.com/stretchr/testify v1.3.0 // indirect
-	golang.org/x/tools v0.0.0-20190208222737-3744606dbb67
+	golang.org/x/tools v0.0.0-20190213135902-6bedcd10978a
 	gopkg.in/alecthomas/kingpin.v2 v2.2.6
 )

go.sum

@@ -1,15 +1,9 @@
-github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc h1:cAKDfWh5VpdgMhJosfJnn5/FoN2SRZ4p7fJNX58YPaU=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
-github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf h1:qet1QNfXsQxTZqLG4oE62mJzwPIB8+Tee4RNCL9ulrY=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
-github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
-golang.org/x/tools v0.0.0-20190208222737-3744606dbb67 h1:bPP/rGuN1LUM0eaEwo6vnP6OfIWJzJBulzGUiKLjjSY=
-golang.org/x/tools v0.0.0-20190208222737-3744606dbb67/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-gopkg.in/alecthomas/kingpin.v2 v2.2.6 h1:jMFz6MfLP0/4fUyZle81rXUoxOBFi19VUFKVDOQfozc=
+golang.org/x/tools v0.0.0-20190213135902-6bedcd10978a h1:ncPOGSo3avrTTUKHvDmwoS5E5of95qqNwftSXoxX+Wk=
+golang.org/x/tools v0.0.0-20190213135902-6bedcd10978a/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=

s2ts.go

@@ -116,8 +116,11 @@ func (s *StructToTS) addType(t reflect.Type, name, prefix string) (out *Struct)
 		case k == reflect.Map:
 			tf.TsType, tf.KeyType, tf.ValType = "map", stripType(sft.Key()), stripType(sft.Elem())
 
-			if isStruct(sft.Elem()) {
+			switch {
+			case isStruct(sft.Elem()):
 				tf.ValType = s.addType(sft.Elem(), "", out.Name).Name
+			case sft.Elem().Kind() == reflect.Interface:
+				tf.ValType = "any"
 			}
 
 		case k == reflect.Slice, k == reflect.Array:

s2ts_test.go

@@ -19,8 +19,12 @@ type ComplexStruct struct {
 	T           time.Time    `json:"t,omitempty"` // automatically handled
 	NullOther   *OtherStruct `json:"o,omitempty"`
 	NoNullOther *OtherStruct `json:"nno,omitempty" ts:",no-null"`
+	Data        Data         `json:"d"`
+	DataPtr     *Data        `json:"dp"`
 }
 
+type Data map[string]interface{}
+
 func ExampleComplexStruct() {
 	s2ts := struct2ts.New(nil)
 	s2ts.Add(ComplexStruct{})
@@ -74,7 +78,7 @@ func ExampleComplexStruct() {
 	// 	for (const k of Object.keys(o)) {
 	// 		const v: any = o[k];
 	// 		if (!v) continue;
-	// 		d[k] = ToObject(v, typeOrCfg[k] || '', true);
+	// 		d[k] = ToObject(v, typeOrCfg[k] || {}, true);
 	// 	}
 	//
 	// 	return d;
@@ -106,6 +110,8 @@ func ExampleComplexStruct() {
 	// 	t: Date;
 	// 	o: ComplexStructOtherStruct | null;
 	// 	nno: ComplexStructOtherStruct;
+	// 	d: { [key: string]: any };
+	// 	dp: { [key: string]: any } | null;
 	//
 	// 	constructor(data?: any) {
 	// 		const d: any = (data && typeof data === 'object') ? ToObject(data) : {};
@@ -116,6 +122,8 @@ func ExampleComplexStruct() {
 	// 		this.t = ('t' in d) ? ParseDate(d.t) : new Date();
 	// 		this.o = ('o' in d) ? new ComplexStructOtherStruct(d.o) : null;
 	// 		this.nno = new ComplexStructOtherStruct(d.nno);
+	// 		this.d = ('d' in d) ? d.d as { [key: string]: any } : {};
+	// 		this.dp = ('dp' in d) ? d.dp as { [key: string]: any } : null;
 	// 	}
 	//
 	// 	toObject(): any {
@@ -128,10 +136,12 @@ func ExampleComplexStruct() {
 	// }
 	//
 	// // exports
-	// export ComplexStructOtherStruct;
-	// export ComplexStruct;
-	// export ParseDate;
-	// export ParseNumber;
-	// export FromArray;
-	// export ToObject;
+	// export {
+	// 	ComplexStructOtherStruct,
+	// 	ComplexStruct,
+	// 	ParseDate,
+	// 	ParseNumber,
+	// 	FromArray,
+	// 	ToObject,
+	// };
 }