fix: Values for section 6.2 should be numbers

.gitignore

@@ -0,0 +1,2 @@
+vendor/
+.idea/

.golangci.yml

@@ -43,6 +43,12 @@ linters-settings:
   gocritic:
     disabled-checks:
       - ifElseChain
+  gofmt:
+    rewrite-rules:
+    - pattern:     'interface{}'
+      replacement: 'any'
+    - pattern:     'a[b:len(a)]'
+      replacement: 'a[b:]'
 
 issues:
   max-per-linter: 0

examples/user.go

@@ -10,9 +10,9 @@ type User struct {
 	// Unique sequential identifier.
 	ID int `json:"id" jsonschema:"required"`
 	// This comment will be ignored
-	Name    string                 `json:"name" jsonschema:"required,minLength=1,maxLength=20,pattern=.*,description=this is a property,title=the name,example=joe,example=lucy,default=alex"`
-	Friends []int                  `json:"friends,omitempty" jsonschema_description:"list of IDs, omitted when empty"`
-	Tags    map[string]interface{} `json:"tags,omitempty"`
+	Name    string         `json:"name" jsonschema:"required,minLength=1,maxLength=20,pattern=.*,description=this is a property,title=the name,example=joe,example=lucy,default=alex"`
+	Friends []int          `json:"friends,omitempty" jsonschema_description:"list of IDs, omitted when empty"`
+	Tags    map[string]any `json:"tags,omitempty"`
 
 	// An array of pets the user cares for.
 	Pets nested.Pets `json:"pets"`

examples_test.go

@@ -9,14 +9,14 @@ import (
 )
 
 type SampleUser struct {
-	ID          int                    `json:"id"`
-	Name        string                 `json:"name" jsonschema:"title=the name,description=The name of a friend,example=joe,example=lucy,default=alex"`
-	Friends     []int                  `json:"friends,omitempty" jsonschema_description:"The list of IDs, omitted when empty"`
-	Tags        map[string]interface{} `json:"tags,omitempty" jsonschema_extras:"a=b,foo=bar,foo=bar1"`
-	BirthDate   time.Time              `json:"birth_date,omitempty" jsonschema:"oneof_required=date"`
-	YearOfBirth string                 `json:"year_of_birth,omitempty" jsonschema:"oneof_required=year"`
-	Metadata    interface{}            `json:"metadata,omitempty" jsonschema:"oneof_type=string;array"`
-	FavColor    string                 `json:"fav_color,omitempty" jsonschema:"enum=red,enum=green,enum=blue"`
+	ID          int            `json:"id"`
+	Name        string         `json:"name" jsonschema:"title=the name,description=The name of a friend,example=joe,example=lucy,default=alex"`
+	Friends     []int          `json:"friends,omitempty" jsonschema_description:"The list of IDs, omitted when empty"`
+	Tags        map[string]any `json:"tags,omitempty" jsonschema_extras:"a=b,foo=bar,foo=bar1"`
+	BirthDate   time.Time      `json:"birth_date,omitempty" jsonschema:"oneof_required=date"`
+	YearOfBirth string         `json:"year_of_birth,omitempty" jsonschema:"oneof_required=year"`
+	Metadata    any            `json:"metadata,omitempty" jsonschema:"oneof_type=string;array"`
+	FavColor    string         `json:"fav_color,omitempty" jsonschema:"enum=red,enum=green,enum=blue"`
 }
 
 func ExampleReflect() {

fixtures/allow_additional_props.json

@@ -118,9 +118,9 @@
         "age": {
           "type": "integer",
           "maximum": 120,
-          "exclusiveMaximum": true,
+          "exclusiveMaximum": 121,
           "minimum": 18,
-          "exclusiveMinimum": true
+          "exclusiveMinimum": 17
         },
         "email": {
           "type": "string",

fixtures/custom_base_schema_id.json

@@ -107,9 +107,9 @@
         "age": {
           "type": "integer",
           "maximum": 120,
-          "exclusiveMaximum": true,
+          "exclusiveMaximum": 121,
           "minimum": 18,
-          "exclusiveMinimum": true
+          "exclusiveMinimum": 17
         },
         "email": {
           "type": "string",

fixtures/defaults_expanded_toplevel.json

@@ -118,9 +118,9 @@
     "age": {
       "type": "integer",
       "maximum": 120,
-      "exclusiveMaximum": true,
+      "exclusiveMaximum": 121,
       "minimum": 18,
-      "exclusiveMinimum": true
+      "exclusiveMinimum": 17
     },
     "email": {
       "type": "string",

fixtures/ignore_type.json

@@ -112,9 +112,9 @@
         "age": {
           "type": "integer",
           "maximum": 120,
-          "exclusiveMaximum": true,
+          "exclusiveMaximum": 121,
           "minimum": 18,
-          "exclusiveMinimum": true
+          "exclusiveMinimum": 17
         },
         "email": {
           "type": "string",

fixtures/no_reference.json

@@ -107,9 +107,9 @@
     "age": {
       "type": "integer",
       "maximum": 120,
-      "exclusiveMaximum": true,
+      "exclusiveMaximum": 121,
       "minimum": 18,
-      "exclusiveMinimum": true
+      "exclusiveMinimum": 17
     },
     "email": {
       "type": "string",

fixtures/no_reference_anchor.json

@@ -109,9 +109,9 @@
     "age": {
       "type": "integer",
       "maximum": 120,
-      "exclusiveMaximum": true,
+      "exclusiveMaximum": 121,
       "minimum": 18,
-      "exclusiveMinimum": true
+      "exclusiveMinimum": 17
     },
     "email": {
       "type": "string",

fixtures/required_from_jsontags.json

@@ -119,9 +119,9 @@
         "age": {
           "type": "integer",
           "maximum": 120,
-          "exclusiveMaximum": true,
+          "exclusiveMaximum": 121,
           "minimum": 18,
-          "exclusiveMinimum": true
+          "exclusiveMinimum": 17
         },
         "email": {
           "type": "string",

fixtures/test_user.json

@@ -119,9 +119,9 @@
         "age": {
           "type": "integer",
           "maximum": 120,
-          "exclusiveMaximum": true,
+          "exclusiveMaximum": 121,
           "minimum": 18,
-          "exclusiveMinimum": true
+          "exclusiveMinimum": 17
         },
         "email": {
           "type": "string",

fixtures/test_user_assign_anchor.json

@@ -121,9 +121,9 @@
         "age": {
           "type": "integer",
           "maximum": 120,
-          "exclusiveMaximum": true,
+          "exclusiveMaximum": 121,
           "minimum": 18,
-          "exclusiveMinimum": true
+          "exclusiveMinimum": 17
         },
         "email": {
           "type": "string",

go.mod

@@ -3,7 +3,6 @@ module github.com/invopop/jsonschema
 go 1.18
 
 require (
-	github.com/iancoleman/orderedmap v0.0.0-20190318233801-ac98e3ecb4b0
 	github.com/stretchr/testify v1.8.1
 	github.com/wk8/go-ordered-map/v2 v2.1.8
 )

go.sum

@@ -5,8 +5,6 @@ github.com/buger/jsonparser v1.1.1/go.mod h1:6RYKKt7H4d4+iWqouImQ9R2FZql3VbhNgx2
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/iancoleman/orderedmap v0.0.0-20190318233801-ac98e3ecb4b0 h1:i462o439ZjprVSFSZLZxcsoAe592sZB1rci2Z8j4wdk=
-github.com/iancoleman/orderedmap v0.0.0-20190318233801-ac98e3ecb4b0/go.mod h1:N0Wam8K1arqPXNWjMo21EXnBPOPp36vB07FNRdD2geA=
 github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y=
 github.com/mailru/easyjson v0.7.7 h1:UGYAvKxe3sBsEDzO8ZeWOSlIQfWFlxbzLZe7hwFURr0=
 github.com/mailru/easyjson v0.7.7/go.mod h1:xzfreul335JAWq5oZzymOObrkdz5UnU4kGfJJLY9Nlc=

reflect.go

@@ -54,13 +54,13 @@ type Schema struct {
 	PropertyNames        *Schema                                 `json:"propertyNames,omitempty"`        // section 10.3.2.4
 	// RFC draft-bhutton-json-schema-validation-00, section 6
 	Type              string              `json:"type,omitempty"`              // section 6.1.1
-	Enum              []interface{}       `json:"enum,omitempty"`              // section 6.1.2
-	Const             interface{}         `json:"const,omitempty"`             // section 6.1.3
-	MultipleOf        int                 `json:"multipleOf,omitempty"`        // section 6.2.1
-	Maximum           int                 `json:"maximum,omitempty"`           // section 6.2.2
-	ExclusiveMaximum  bool                `json:"exclusiveMaximum,omitempty"`  // section 6.2.3
-	Minimum           int                 `json:"minimum,omitempty"`           // section 6.2.4
-	ExclusiveMinimum  bool                `json:"exclusiveMinimum,omitempty"`  // section 6.2.5
+	Enum              []any               `json:"enum,omitempty"`              // section 6.1.2
+	Const             any                 `json:"const,omitempty"`             // section 6.1.3
+	MultipleOf        *json.Number        `json:"multipleOf,omitempty"`        // section 6.2.1
+	Maximum           *json.Number        `json:"maximum,omitempty"`           // section 6.2.2
+	ExclusiveMaximum  *json.Number        `json:"exclusiveMaximum,omitempty"`  // section 6.2.3
+	Minimum           *json.Number        `json:"minimum,omitempty"`           // section 6.2.4
+	ExclusiveMinimum  *json.Number        `json:"exclusiveMinimum,omitempty"`  // section 6.2.5
 	MaxLength         int                 `json:"maxLength,omitempty"`         // section 6.3.1
 	MinLength         int                 `json:"minLength,omitempty"`         // section 6.3.2
 	Pattern           string              `json:"pattern,omitempty"`           // section 6.3.3
@@ -80,15 +80,15 @@ type Schema struct {
 	ContentMediaType string  `json:"contentMediaType,omitempty"` // section 8.4
 	ContentSchema    *Schema `json:"contentSchema,omitempty"`    // section 8.5
 	// RFC draft-bhutton-json-schema-validation-00, section 9
-	Title       string        `json:"title,omitempty"`       // section 9.1
-	Description string        `json:"description,omitempty"` // section 9.1
-	Default     interface{}   `json:"default,omitempty"`     // section 9.2
-	Deprecated  bool          `json:"deprecated,omitempty"`  // section 9.3
-	ReadOnly    bool          `json:"readOnly,omitempty"`    // section 9.4
-	WriteOnly   bool          `json:"writeOnly,omitempty"`   // section 9.4
-	Examples    []interface{} `json:"examples,omitempty"`    // section 9.5
+	Title       string `json:"title,omitempty"`       // section 9.1
+	Description string `json:"description,omitempty"` // section 9.1
+	Default     any    `json:"default,omitempty"`     // section 9.2
+	Deprecated  bool   `json:"deprecated,omitempty"`  // section 9.3
+	ReadOnly    bool   `json:"readOnly,omitempty"`    // section 9.4
+	WriteOnly   bool   `json:"writeOnly,omitempty"`   // section 9.4
+	Examples    []any  `json:"examples,omitempty"`    // section 9.5
 
-	Extras map[string]interface{} `json:"-"`
+	Extras map[string]any `json:"-"`
 
 	// Special boolean representation of the Schema - section 4.3.2
 	boolean *bool
@@ -127,7 +127,7 @@ type customGetFieldDocString func(fieldName string) string
 var customStructGetFieldDocString = reflect.TypeOf((*customSchemaGetFieldDocString)(nil)).Elem()
 
 // Reflect reflects to Schema from a value using the default Reflector
-func Reflect(v interface{}) *Schema {
+func Reflect(v any) *Schema {
 	return ReflectFromType(reflect.TypeOf(v))
 }
 
@@ -188,7 +188,7 @@ type Reflector struct {
 
 	// IgnoredTypes defines a slice of types that should be ignored in the schema,
 	// switching to just allowing additional properties instead.
-	IgnoredTypes []interface{}
+	IgnoredTypes []any
 
 	// Lookup allows a function to be defined that will provide a custom mapping of
 	// types to Schema IDs. This allows existing schema documents to be referenced
@@ -229,7 +229,7 @@ type Reflector struct {
 }
 
 // Reflect reflects to Schema from a value.
-func (r *Reflector) Reflect(v interface{}) *Schema {
+func (r *Reflector) Reflect(v any) *Schema {
 	return r.ReflectFromType(reflect.TypeOf(v))
 }
 
@@ -676,7 +676,7 @@ func (t *Schema) structKeywordsFromTags(f reflect.StructField, parent *Schema, p
 	t.extraKeywords(extras)
 }
 
-// read struct tags for generic keyworks
+// read struct tags for generic keywords
 func (t *Schema) genericKeywords(tags []string, parent *Schema, propertyName string) { //nolint:gocyclo
 	for _, tag := range tags {
 		nameValue := strings.Split(tag, "=")
@@ -789,7 +789,7 @@ func (t *Schema) genericKeywords(tags []string, parent *Schema, propertyName str
 	}
 }
 
-// read struct tags for boolean type keyworks
+// read struct tags for boolean type keywords
 func (t *Schema) booleanKeywords(tags []string) {
 	for _, tag := range tags {
 		nameValue := strings.Split(tag, "=")
@@ -807,7 +807,7 @@ func (t *Schema) booleanKeywords(tags []string) {
 	}
 }
 
-// read struct tags for string type keyworks
+// read struct tags for string type keywords
 func (t *Schema) stringKeywords(tags []string) {
 	for _, tag := range tags {
 		nameValue := strings.Split(tag, "=")
@@ -842,41 +842,38 @@ func (t *Schema) stringKeywords(tags []string) {
 	}
 }
 
-// read struct tags for numerical type keyworks
+// read struct tags for numerical type keywords
 func (t *Schema) numericalKeywords(tags []string) {
 	for _, tag := range tags {
 		nameValue := strings.Split(tag, "=")
 		if len(nameValue) == 2 {
 			name, val := nameValue[0], nameValue[1]
 			switch name {
 			case "multipleOf":
-				i, _ := strconv.Atoi(val)
-				t.MultipleOf = i
+				t.MultipleOf = toJSONNumber(val)
 			case "minimum":
-				i, _ := strconv.Atoi(val)
-				t.Minimum = i
+				t.Minimum = toJSONNumber(val)
 			case "maximum":
-				i, _ := strconv.Atoi(val)
-				t.Maximum = i
+				t.Maximum = toJSONNumber(val)
 			case "exclusiveMaximum":
-				b, _ := strconv.ParseBool(val)
-				t.ExclusiveMaximum = b
+				t.ExclusiveMaximum = toJSONNumber(val)
 			case "exclusiveMinimum":
-				b, _ := strconv.ParseBool(val)
-				t.ExclusiveMinimum = b
+				t.ExclusiveMinimum = toJSONNumber(val)
 			case "default":
-				n, _ := strconv.ParseFloat(val, 64)
-				t.Default = n
+				if num := toJSONNumber(val); num != nil {
+					// toJSONNumber returns typed nil, so we need to account for that
+					t.Default = num
+				}
 			case "example":
-				if i, err := strconv.Atoi(val); err == nil {
-					t.Examples = append(t.Examples, i)
+				if num := toJSONNumber(val); num != nil {
+					t.Examples = append(t.Examples, num)
 				}
 			}
 		}
 	}
 }
 
-// read struct tags for object type keyworks
+// read struct tags for object type keywords
 // func (t *Type) objectKeywords(tags []string) {
 //     for _, tag := range tags{
 //         nameValue := strings.Split(tag, "=")
@@ -892,9 +889,9 @@ func (t *Schema) numericalKeywords(tags []string) {
 //     }
 // }
 
-// read struct tags for array type keyworks
+// read struct tags for array type keywords
 func (t *Schema) arrayKeywords(tags []string) {
-	var defaultValues []interface{}
+	var defaultValues []any
 	for _, tag := range tags {
 		nameValue := strings.Split(tag, "=")
 		if len(nameValue) == 2 {
@@ -944,7 +941,7 @@ func (t *Schema) extraKeywords(tags []string) {
 
 func (t *Schema) setExtra(key, val string) {
 	if t.Extras == nil {
-		t.Extras = map[string]interface{}{}
+		t.Extras = map[string]any{}
 	}
 	if existingVal, ok := t.Extras[key]; ok {
 		switch existingVal := existingVal.(type) {
@@ -962,7 +959,7 @@ func (t *Schema) setExtra(key, val string) {
 		case "minimum":
 			t.Extras[key], _ = strconv.Atoi(val)
 		default:
-			var x interface{}
+			var x any
 			if val == "true" {
 				x = true
 			} else if val == "false" {
@@ -1020,6 +1017,19 @@ func ignoredByJSONSchemaTags(tags []string) bool {
 	return tags[0] == "-"
 }
 
+// toJSONNumber converts string to *json.Number
+// it'll return nil if the number is invalid
+func toJSONNumber(s string) *json.Number {
+	num := json.Number(s)
+	if _, err := num.Int64(); err == nil {
+		return &num
+	}
+	if _, err := num.Float64(); err == nil {
+		return &num
+	}
+	return nil
+}
+
 func (r *Reflector) fieldNameTag() string {
 	if r.FieldNameTag != "" {
 		return r.FieldNameTag