diff options
Diffstat (limited to 'nexgb/xgbgen/go_event.go')
| -rw-r--r-- | nexgb/xgbgen/go_event.go | 97 |
1 files changed, 88 insertions, 9 deletions
diff --git a/nexgb/xgbgen/go_event.go b/nexgb/xgbgen/go_event.go index d91fd7a..e6d40b0 100644 --- a/nexgb/xgbgen/go_event.go +++ b/nexgb/xgbgen/go_event.go @@ -3,14 +3,75 @@ package main // Event types func (e *Event) Define(c *Context) { c.Putln("// Event definition %s (%d)", e.SrcName(), e.Number) + c.Putln("// Size: %s", e.Size()) + c.Putln("type %s struct {", e.EvType()) + c.Putln("Sequence uint16") + for _, field := range e.Fields { + field.Define(c) + } + c.Putln("}") + c.Putln("") + + // Read defines a function that transforms a byte slice into this + // event struct. + e.Read(c) + + // Write defines a function that transoforms this event struct into + // a byte slice. + e.Write(c) + + // Makes sure that this event type is an Event interface. + c.Putln("func (v %s) ImplementsEvent() { }", e.EvType()) + c.Putln("") + + // Let's the XGB event loop read this event. + c.Putln("func init() {") + c.Putln("newEventFuncs[%d] = New%s", e.Number, e.SrcName()) + c.Putln("}") + c.Putln("") } -func (e *Event) Read(c *Context, prefix string) { +func (e *Event) Read(c *Context) { c.Putln("// Event read %s", e.SrcName()) + c.Putln("func New%s(buf []byte) %s {", e.SrcName(), e.EvType()) + c.Putln("v := %s{}", e.EvType()) + c.Putln("b := 1 // don't read event number") + c.Putln("") + for i, field := range e.Fields { + if i == 1 && !e.NoSequence { + c.Putln("v.Sequence = get16(buf[b:])") + c.Putln("b += 2") + c.Putln("") + } + field.Read(c) + c.Putln("") + } + c.Putln("return v") + c.Putln("}") + c.Putln("") } -func (e *Event) Write(c *Context, prefix string) { +func (e *Event) Write(c *Context) { c.Putln("// Event write %s", e.SrcName()) + c.Putln("func (v %s) Bytes() []byte {", e.EvType()) + c.Putln("buf := make([]byte, %s)", e.Size()) + c.Putln("b := 0") + c.Putln("") + c.Putln("// write event number") + c.Putln("buf[b] = %d", e.Number) + c.Putln("b += 1") + c.Putln("") + for i, field := range e.Fields { + if i == 1 && !e.NoSequence { + c.Putln("b += 2 // skip sequence number") + c.Putln("") + } + field.Write(c) + c.Putln("") + } + c.Putln("return buf") + c.Putln("}") + c.Putln("") } // EventCopy types @@ -21,18 +82,36 @@ func (e *EventCopy) Define(c *Context) { c.Putln("") c.Putln("type %s %s", e.EvType(), e.Old.(*Event).EvType()) c.Putln("") + + // Read defines a function that transforms a byte slice into this + // event struct. + e.Read(c) + + // Write defines a function that transoforms this event struct into + // a byte slice. + e.Write(c) + + // Makes sure that this event type is an Event interface. + c.Putln("func (v %s) ImplementsEvent() { }", e.EvType()) + c.Putln("") + + // Let's the XGB event loop read this event. + c.Putln("func init() {") + c.Putln("newEventFuncs[%d] = New%s", e.Number, e.SrcName()) + c.Putln("}") + c.Putln("") +} + +func (e *EventCopy) Read(c *Context) { c.Putln("func New%s(buf []byte) %s {", e.SrcName(), e.EvType()) c.Putln("return (%s)(New%s(buf))", e.EvType(), e.Old.SrcName()) c.Putln("}") c.Putln("") - c.Putln("func (ev %s) ImplementsEvent() { }", e.EvType()) - c.Putln("") - c.Putln("func (ev %s) Bytes() []byte {", e.EvType()) +} + +func (e *EventCopy) Write(c *Context) { + c.Putln("func (v %s) Bytes() []byte {", e.EvType()) c.Putln("return (%s)(ev).Bytes()", e.Old.(*Event).EvType()) c.Putln("}") c.Putln("") - c.Putln("func init() {") - c.Putln("newEventFuncs[%d] = New%s", e.Number, e.SrcName()) - c.Putln("}") - c.Putln("") } |