/
encoding_structs.go
79 lines (65 loc) · 1.61 KB
/
encoding_structs.go
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package stable
import (
"reflect"
)
func structArrayToTable(s interface{}) (*STable, error) {
t := reflect.TypeOf(s)
v := reflect.ValueOf(s)
te := t.Elem()
if te.Kind() == reflect.Ptr {
te = te.Elem()
}
caption := t.Name()
if caption != "" {
caption = te.Name() + "(s)"
}
table := New(caption)
for i := 0; i < v.Len(); i++ {
elementValue := v.Index(i)
if elementValue.Type().Kind() == reflect.Ptr {
elementValue = reflect.Indirect(elementValue)
}
if i == 0 {
fieldNames := getFieldNames(elementValue, elementValue.Type())
table.AddFields(fieldNames...)
}
fieldValues := getFieldValues(elementValue, elementValue.Type())
table.Row(fieldValues...)
}
return table, nil
}
func structToTable(s interface{}) (*STable, error) {
t := reflect.TypeOf(s)
v := reflect.ValueOf(s)
if t.Kind() == reflect.Ptr {
v = reflect.Indirect(v)
t = v.Type()
}
caption := t.Name()
table := New(caption)
fieldNames := getFieldNames(v, t)
table.AddFields(fieldNames...)
fieldValues := getFieldValues(v, t)
table.Row(fieldValues...)
return table, nil
}
func getFieldNames(v reflect.Value, t reflect.Type) []string {
fieldNames := make([]string, t.NumField())
for i := 0; i < t.NumField(); i++ {
fieldType := t.Field(i)
tableTag := fieldType.Tag.Get("table")
if tableTag == "" {
tableTag = fieldType.Name
}
fieldNames[i] = tableTag
}
return fieldNames
}
func getFieldValues(v reflect.Value, t reflect.Type) []interface{} {
fieldValues := make([]interface{}, t.NumField())
for i := 0; i < t.NumField(); i++ {
fieldValue := v.Field(i)
fieldValues[i] = fieldValue
}
return fieldValues
}