https://github.com/json-iterator/tinygo

make json.Unmarshal work in tinygo
https://github.com/json-iterator/tinygo

Last synced: about 1 month ago
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make json.Unmarshal work in tinygo

• Host: GitHub
• URL: https://github.com/json-iterator/tinygo
• Owner: json-iterator
• License: mit
• Created: 2021-12-01T07:42:16.000Z (about 3 years ago)
• Default Branch: main
• Last Pushed: 2021-12-21T07:20:01.000Z (about 3 years ago)
• Last Synced: 2024-06-21T18:56:47.956Z (6 months ago)
• Language: Go
• Size: 141 KB
• Stars: 8
• Watchers: 3
• Forks: 1
• Open Issues: 4
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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# make `json.Unmarshal` work in tinygo

```go

type NamedArray = []string

type RefNamedArray struct {

	Value NamedArray

}

import "encoding/json"

var val1 RefNamedArray

var val2 NamedArray

json.Unmarshal([]byte(`{ "Value": ["hello","world"] }`), &val1)

json.Unmarshal([]byte(`["hello","world"]`), &val2) 

```

The code above does not work in tinygo, due to incomplete runtime reflection support. To fix this, we use code generation instead of runtime reflection to implement `json.Unmarshal`

```go

//go:generate go run github.com/json-iterator/tinygo/gen

type NamedArray = []string

//go:generate go run github.com/json-iterator/tinygo/gen

type RefNamedArray struct {

	Value NamedArray

}

import "github.com/json-iterator/tinygo"

// list all the types you need to unmarshal here

json := jsoniter.CreateJsonAdapter(RefNamedArray_json{}, NamedArray_json{}) 

var val1 RefNamedArray

var val2 NamedArray

json.Unmarshal([]byte(`{ "Value": ["hello","world"] }`), &val1)

json.Unmarshal([]byte(`["hello","world"]`), &val2) 

```

run `go generate` command to generate RefNamedArray_json and NamedArray_json.