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adds extraction type mapping option #6

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adds extraction type mapping option #6

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15 changes: 14 additions & 1 deletion extract.go
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,8 @@ type extractor struct {
docHandler DocHandler

result map[string]TypescriptType

customTypeMapping map[reflect.Kind]*TypescriptType
}

// EmbedStructs produces a single monolithic structure where all
Expand Down Expand Up @@ -82,6 +84,12 @@ func WithDocumentation(handler DocHandler) ExtractOption {
}
}

func TypeMapping(kind reflect.Kind, ty *TypescriptType) ExtractOption {
return func(e *extractor) {
e.customTypeMapping[kind] = ty
}
}

// SortAlphabetically sorts all types and their members alphabetically
func SortAlphabetically(e *extractor) {
sorter := func(a, b interface{}) bool {
Expand Down Expand Up @@ -121,7 +129,8 @@ func Extract(s interface{}, opts ...ExtractOption) ([]TypescriptType, error) {
typeNamer: func(t reflect.Type) string {
return strcase.ToCamel(t.Name())
},
docHandler: (*nullDocHandler)(nil),
docHandler: (*nullDocHandler)(nil),
customTypeMapping: map[reflect.Kind]*TypescriptType{},
}
for _, opt := range opts {
opt(e)
Expand Down Expand Up @@ -374,6 +383,10 @@ func (e *extractor) getPrimitiveType(t reflect.Type) (*TypescriptType, error) {
}

kind := t.Kind()
if mapping, ok := e.customTypeMapping[kind]; ok {
return mapping, nil
}

switch kind {
case reflect.Bool:
return mktype("boolean"), nil
Expand Down