Method encodeField

gapil/compiler/plugins/encoder/encoder.go:344–375

encodeField encodes a single proto field to buf.

(s *compiler.S, ptr, buf *codegen.Value, id serialization.ProtoFieldID, ty semantic.Type)

// encodeField encodes a single proto field to buf.
func (e *encoder) encodeField(s *compiler.S, ptr, buf *codegen.Value, id serialization.ProtoFieldID, ty semantic.Type) {
	e.debug(s, "encoding field at %p: '%s' id: %d, ty: %s", ptr, ptr.Name(), id, ty.Name())

	ent := e.ent(ty)
	doEncode := func(s *compiler.S) {
		switch ty := semantic.Underlying(ty).(type) {
		case *semantic.StaticArray:
			if ent := e.ent(ty.ValueType); ent.isPacked() {
				e.writeWireAndTag(s, buf, proto.WireBytes, id)
				e.writeBlob(s, buf, func(buf *codegen.Value) {
					for i := uint32(0); i < ty.Size; i++ {
						e.encodeValue(s, ptr.Index(0, int(i)), buf, ty.ValueType)
					}
				})
			} else {
				for i := uint32(0); i < ty.Size; i++ {
					e.writeWireAndTag(s, buf, ent.wireTy, id)
					e.encodeValue(s, ptr.Index(0, int(i)), buf, ty.ValueType)
				}
			}
		default:
			e.writeWireAndTag(s, buf, ent.wireTy, id)
			e.encodeValue(s, ptr, buf, ty)
		}
	}

	if cond := e.shouldEncode(s, ptr, ty); cond != nil {
		s.If(cond, doEncode)
	} else {
		doEncode(s)
	}
}

// shouldEncode returns a boolean value which determines whether the proto value
// should be encoded. Fields that are zero or nil are not encoded.