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general.go
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/
general.go
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package types
import (
"fmt"
"go/token"
"strconv"
"github.com/dave/jennifer/jen"
"github.com/dipdup-net/go-lib/tzkt/api"
"github.com/iancoleman/strcase"
"github.com/pkg/errors"
)
// TODO: custom validation by type
// TODO: re-using same types
var reservedNames = map[string]string{
"default": "DefaultEntrypoint",
}
// Type -
type Type interface {
AsField(name, path string, schema api.JSONSchema, isRequired bool, result *ContractTypeResult) (jen.Code, error)
AsCode(name, path string, schema api.JSONSchema, result *ContractTypeResult) (Code, error)
AsType(name, path string, schema api.JSONSchema, result *ContractTypeResult) (Code, error)
}
// Code -
type Code struct {
Statement jen.Code
Name string
}
// Generate -
func Generate(name string, schema api.JSONSchema, result *ContractTypeResult) (string, error) {
typ, err := selectType(schema)
if err != nil {
return "", err
}
code, err := typ.AsCode(name, "", schema, result)
if err != nil {
return "", err
}
if code.Statement != nil {
result.File.Add(code.Statement)
}
return code.Name, nil
}
// ContractTypeResult -
type ContractTypeResult struct {
File *jen.File
Entrypoints map[string]EntrypointData
BigMaps map[string]BigMapData
PackageName string
names map[string]struct{}
counter int64
}
// GetName -
func (result *ContractTypeResult) GetName(typ, name string) string {
if reserved, ok := reservedNames[name]; ok {
name = reserved
}
name = fieldName(typ, name)
if _, exists := result.names[name]; exists {
result.counter++
name = fmt.Sprintf("%s%d", name, result.counter)
name = result.GetName(typ, name)
}
result.names[name] = struct{}{}
return name
}
// EntrypointData -
type EntrypointData struct {
Type string
Var string
}
// BigMapData -
type BigMapData struct {
Type string
KeyType string
ValueType string
}
// GenerateContractTypes -
func GenerateContractTypes(schema api.ContractJSONSchema, packageName string) (ContractTypeResult, error) {
result := ContractTypeResult{
File: jen.NewFile(packageName),
Entrypoints: make(map[string]EntrypointData),
BigMaps: make(map[string]BigMapData),
PackageName: packageName,
names: make(map[string]struct{}),
}
result.File.PackageComment("DO NOT EDIT!!!")
result.File.ImportName("github.com/dipdup-net/go-lib/tools/tezgen", "tezgen")
if err := generateForContract(schema, &result); err != nil {
return result, err
}
return result, nil
}
func generateForContract(schema api.ContractJSONSchema, result *ContractTypeResult) error {
for _, entrypoint := range schema.Entrypoints {
entrypointType, err := Generate(entrypoint.Name, entrypoint.Parameter, result)
if err != nil {
return err
}
entrypointName := entrypoint.Name
if token.Lookup(entrypointName).IsKeyword() {
entrypointName = fmt.Sprintf("%s_entrypoint", entrypointName)
}
result.Entrypoints[entrypoint.Name] = EntrypointData{
Type: entrypointType,
Var: strcase.ToLowerCamel(entrypointName),
}
}
for i := range schema.BigMaps {
if err := GenerateBigMap(schema.BigMaps[i], result); err != nil {
return err
}
}
if _, err := Generate("storage", schema.Storage, result); err != nil {
return err
}
return nil
}
func selectType(schema api.JSONSchema) (Type, error) {
switch schema.Type {
case "object":
switch schema.Comment {
case "unit":
return new(Unit), nil
case "map":
return new(Map), nil
default:
return new(Object), nil
}
case TypeString:
switch schema.Comment {
case "address":
return new(Address), nil
case "bytes", "bls12_381_g1", "bls12_381_g2":
return new(Bytes), nil
case "contract":
return new(Contract), nil
case "int", "mutez", "nat":
return new(Int), nil
case "key_hash":
return new(KeyHash), nil
case "lambda":
return new(Lambda), nil
case "sapling_transaction":
return new(SaplingTransaction), nil
case TypeString, "signature", "key", "never", "chain_id", "bls12_381_fr", "ticket", "operation":
return new(String), nil
case "timestamp":
return new(Timestamp), nil
default:
return nil, errors.Errorf("unknown comment for string: %s", schema.Comment)
}
case "array":
switch schema.Comment {
case "list":
return new(List), nil
case "set":
return new(Set), nil
default:
return nil, errors.Errorf("unknown comment for array: %s", schema.Comment)
}
case "integer":
return new(Int), nil
case "boolean":
return new(Bool), nil
default:
switch schema.Comment {
case "option":
return new(Option), nil
case "big_map":
return new(BigMap), nil
case "sapling_state":
return new(SaplingState), nil
case "or":
return new(Or), nil
}
return nil, errors.Errorf("unknown type: %s", schema.Type)
}
}
func isSimpleType(comment string) bool {
switch comment {
case TypeString, "bytes", "address", "mutez", "int", "nat", "timestamp", "unit", "signature":
return true
}
return false
}
func fieldName(typ, name string) string {
if _, err := strconv.ParseInt(name, 10, 64); err == nil {
name = fmt.Sprintf("%s%s", typ, name)
}
return strcase.ToCamel(name)
}
func getPath(path string, name string) string {
if path == "" {
return name
}
return fmt.Sprintf("%s.%s", path, name)
}