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update json comments

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R=r
DELTA=16  (4 added, 2 deleted, 10 changed)
OCL=35320
CL=35331
This commit is contained in:
Russ Cox 2009-10-05 11:23:44 -07:00
parent ff97fde26b
commit c5b056f24f
1 changed files with 14 additions and 12 deletions
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26
src/pkg/json/struct.go
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@ -179,10 +179,8 @@ func (b *_StructBuilder) Key(k string) Builder {
}
if v, ok := reflect.Indirect(b.val).(*reflect.StructValue); ok {
t := v.Type().(*reflect.StructType);
if field, ok := t.FieldByName(k); ok {
return &_StructBuilder{ v.FieldByIndex(field.Index) }
}
// Again, case-insensitive.
// Case-insensitive field lookup.
k = strings.ToLower(k);
for i := 0; i < t.NumField(); i++ {
if strings.ToLower(t.Field(i).Name) == k {
return &_StructBuilder{ v.Field(i) }
@ -194,21 +192,21 @@ func (b *_StructBuilder) Key(k string) Builder {
// Unmarshal parses the JSON syntax string s and fills in
// an arbitrary struct or array pointed at by val.
// It uses the reflection library to assign to fields
// It uses the reflect package to assign to fields
// and arrays embedded in val. Well-formed data that does not fit
// into the struct is discarded.
//
// For example, given the following definitions:
// For example, given these definitions:
//
// type Email struct {
// where string;
// addr string;
// Where string;
// Addr string;
// }
//
// type Result struct {
// name string;
// phone string;
// emails []Email
// Name string;
// Phone string;
// Email []Email
// }
//
// var r = Result{ "name", "phone", nil }
@ -241,9 +239,13 @@ func (b *_StructBuilder) Key(k string) Builder {
// }
// }
//
// Note that the field r.phone has not been modified and
// Note that the field r.Phone has not been modified and
// that the JSON field "address" was discarded.
//
// Because Unmarshal uses the reflect package, it can only
// assign to upper case fields. Unmarshal uses a case-insensitive
// comparison to match JSON field names to struct field names.
//
// On success, Unmarshal returns with ok set to true.
// On a syntax error, it returns with ok set to false and errtok
// set to the offending token.