field tags are considered part of the anonymous struct definition

so they must be included in the generated source code.

gen/generator.go

@@ -264,7 +264,12 @@ func (g *Generator) getType(t reflect.Type) string {
 			lines := make([]string, 0, nf)
 			for i := 0; i < nf; i++ {
 				f := t.Field(i)
-				lines = append(lines, f.Name+" "+g.getType(f.Type))
+				line := f.Name + " " + g.getType(f.Type)
+				t := f.Tag
+				if t != "" {
+					line += " " + escapeTag(t)
+				}
+				lines = append(lines, line)
 			}
 			return strings.Join([]string{"struct { ", strings.Join(lines, "; "), " }"}, "")
 		}
@@ -275,6 +280,16 @@ func (g *Generator) getType(t reflect.Type) string {
 	return g.pkgAlias(t.PkgPath()) + "." + t.Name()
 }
 
+// escape a struct field tag string back to source code
+func escapeTag(tag reflect.StructTag) string {
+	t := string(tag)
+	if strings.ContainsRune(t, '`') {
+		// there are ` in the string; we can't use ` to enclose the string
+		return strconv.Quote(t)
+	}
+	return "`" + t + "`"
+}
+
 // uniqueVarName returns a file-unique name that can be used for generated variables.
 func (g *Generator) uniqueVarName() string {
 	g.varCounter++

tests/basic_test.go

@@ -36,6 +36,7 @@ var testCases = []struct {
 	{&deepNestValue, deepNestString},
 	{&IntsValue, IntsString},
 	{&mapStringStringValue, mapStringStringString},
+	{&namedTypeValue, namedTypeValueString},
 }
 
 func TestMarshal(t *testing.T) {

tests/named_type.go

@@ -5,15 +5,18 @@ type NamedType struct {
 	Inner struct {
 		// easyjson is mistakenly naming the type of this field 'tests.MyString' in the generated output
 		// something about a named type inside an anonmymous type is triggering this bug
-		Field  MyString
-		Field2 int
+		Field  MyString `tag:"value"`
+		Field2 int      "tag:\"value with ` in it\""
 	}
 }
 
 type MyString string
 
-var namedTypeValue = NamedType{Inner: struct {
-	Field  MyString
-	Field2 int
-}{Field: "test"}}
-var namedTypeValueString = `{"Inner":{"Field":"test"}}`
+var namedTypeValue NamedType
+
+func init() {
+	namedTypeValue.Inner.Field = "test"
+	namedTypeValue.Inner.Field2 = 123
+}
+
+var namedTypeValueString = `{"Inner":{"Field":"test","Field2":123}}`