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authorAndrew Gallant (Ocelot) <Andrew.Gallant@tufts.edu>2012-05-02 01:46:30 -0400
committerAndrew Gallant (Ocelot) <Andrew.Gallant@tufts.edu>2012-05-02 01:46:30 -0400
commit39507f86ab0468292c24081a80f41c1799d6b477 (patch)
tree002668a66ec90c71b3bbd05141b378d0b2218d58 /nexgb/xgbgen/go_error.go
parentf48b6fafc6d96527a554876e13fc5a0b548005af (diff)
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finally starting on the crescendo: requests and replies.
Diffstat (limited to 'nexgb/xgbgen/go_error.go')
-rw-r--r--nexgb/xgbgen/go_error.go65
1 files changed, 46 insertions, 19 deletions
diff --git a/nexgb/xgbgen/go_error.go b/nexgb/xgbgen/go_error.go
index 493a8b9..17c0db5 100644
--- a/nexgb/xgbgen/go_error.go
+++ b/nexgb/xgbgen/go_error.go
@@ -3,15 +3,53 @@ package main
// Error types
func (e *Error) Define(c *Context) {
c.Putln("// Error definition %s (%d)", e.SrcName(), e.Number)
+ c.Putln("// Size: %s", e.Size())
+ c.Putln("")
+ c.Putln("const %s = %d", e.ErrConst(), e.Number)
+ c.Putln("")
+ c.Putln("type %s struct {", e.ErrType())
+ c.Putln("Sequence uint16")
+ c.Putln("NiceName string")
+ for _, field := range e.Fields {
+ field.Define(c)
+ }
+ c.Putln("}")
c.Putln("")
-}
-func (e *Error) Read(c *Context, prefix string) {
- c.Putln("// Error read %s", e.SrcName())
+ // Read defines a function that transforms a byte slice into this
+ // error struct.
+ e.Read(c)
+
+ // Makes sure that this error type is an Error interface.
+ c.Putln("func (v %s) ImplementsError() { }", e.ErrType())
+ c.Putln("")
+
+ // Let's the XGB event loop read this error.
+ c.Putln("func init() {")
+ c.Putln("newErrorFuncs[%d] = New%s", e.Number, e.ErrType())
+ c.Putln("}")
+ c.Putln("")
}
-func (e *Error) Write(c *Context, prefix string) {
- c.Putln("// Error write %s", e.SrcName())
+func (e *Error) Read(c *Context) {
+ c.Putln("// Error read %s", e.SrcName())
+ c.Putln("func New%s(buf []byte) %s {", e.ErrType(), e.ErrType())
+ c.Putln("v := %s{}", e.ErrType())
+ c.Putln("v.NiceName = \"%s\"", e.SrcName())
+ c.Putln("")
+ c.Putln("b := 1 // skip error determinant")
+ c.Putln("b += 1 // don't read error number")
+ c.Putln("")
+ c.Putln("v.Sequence = get16(buf[b:])")
+ c.Putln("b += 2")
+ c.Putln("")
+ for _, field := range e.Fields {
+ field.Read(c)
+ c.Putln("")
+ }
+ c.Putln("return v")
+ c.Putln("}")
+ c.Putln("")
}
// ErrorCopy types
@@ -27,31 +65,20 @@ func (e *ErrorCopy) Define(c *Context) {
// error struct.
e.Read(c)
- // Write defines a function that transoforms this error struct into
- // a byte slice.
- e.Write(c)
-
// Makes sure that this error type is an Error interface.
c.Putln("func (err %s) ImplementsError() { }", e.ErrType())
c.Putln("")
// Let's the XGB know how to read this error.
c.Putln("func init() {")
- c.Putln("newErrorFuncs[%d] = New%s", e.Number, e.SrcName())
+ c.Putln("newErrorFuncs[%d] = New%s", e.Number, e.ErrType())
c.Putln("}")
c.Putln("")
}
func (e *ErrorCopy) Read(c *Context) {
- c.Putln("func New%s(buf []byte) %s {", e.SrcName(), e.ErrType())
- c.Putln("return (%s)(New%s(buf))", e.ErrType(), e.Old.SrcName())
- c.Putln("}")
- c.Putln("")
-}
-
-func (e *ErrorCopy) Write(c *Context) {
- c.Putln("func (err %s) Bytes() []byte {", e.ErrType())
- c.Putln("return (%s)(err).Bytes()", e.Old.(*Error).ErrType())
+ c.Putln("func New%s(buf []byte) %s {", e.ErrType(), e.ErrType())
+ c.Putln("return %s(New%s(buf))", e.ErrType(), e.Old.(*Error).ErrType())
c.Putln("}")
c.Putln("")
}