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generate.go
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generate.go
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package gelm
import (
"fmt"
"strings"
)
const (
indent1 = 1
indent2 = 2
)
func indent(n int, line string) string {
output := ""
for ; n > 0; n-- {
output += " "
}
return output + line
}
func generateTypeAlias(def typeAlias) string {
lines := []string{fmt.Sprintf("type alias %s =", def.Name)}
for idx, fieldDef := range def.Fields {
prefix := ","
if idx == 0 {
prefix = "{"
}
lines = append(
lines,
indent(indent1, fmt.Sprintf("%s %s : %s", prefix, fieldDef.ElmName, fieldDef.Type())),
)
}
lines = append(lines, indent(indent1, "}"))
return strings.Join(lines, "\n")
}
func generateDecoder(def typeAlias) string {
lines := []string{
fmt.Sprintf("decode%s : Decode.Decoder %s", def.Name, def.Name),
fmt.Sprintf("decode%s =", def.Name),
indent(1, fmt.Sprintf("Decode.succeed %s", def.Name)),
}
for _, fieldDef := range def.Fields {
lines = append(lines, indent(indent2, fieldDef.DecoderFn()))
}
return strings.Join(lines, "\n")
}