diff options
Diffstat (limited to 'nexgb/xgbgen/field.go')
| -rw-r--r-- | nexgb/xgbgen/field.go | 32 |
1 files changed, 19 insertions, 13 deletions
diff --git a/nexgb/xgbgen/field.go b/nexgb/xgbgen/field.go index 16760d4..bf3b3be 100644 --- a/nexgb/xgbgen/field.go +++ b/nexgb/xgbgen/field.go @@ -50,6 +50,7 @@ func (pad *PadField) Initialize(p *Protocol) {} // It is also used in size calculation. type PadField struct { Bytes uint + Align uint16 } func (p *PadField) SrcName() string { @@ -65,7 +66,11 @@ func (f *PadField) SrcType() string { } func (p *PadField) Size() Size { - return newFixedSize(p.Bytes) + if p.Align > 0 { + return newFixedSize(uint(p.Align), false) + } else { + return newFixedSize(p.Bytes, true) + } } // SingleField represents most of the fields in an XML protocol description. @@ -130,9 +135,9 @@ func (f *ListField) Length() Size { Expr: &FieldRef{ Name: f.SrcName(), }, - }) + }, true) } - return newExpressionSize(f.LengthExpr) + return newExpressionSize(f.LengthExpr, true) } // Size computes the *size* of a list (in bytes). @@ -142,8 +147,9 @@ func (f *ListField) Length() Size { // special function written in go_struct.go to compute the size (since the // size in this case can only be computed recursively). func (f *ListField) Size() Size { + elsz := f.Type.Size() simpleLen := &Padding{ - Expr: newBinaryOp("*", f.Length().Expression, f.Type.Size().Expression), + Expr: newBinaryOp("*", f.Length().Expression, elsz.Expression), } switch field := f.Type.(type) { @@ -153,18 +159,18 @@ func (f *ListField) Size() Size { Name: fmt.Sprintf("%sListSize", f.Type.SrcName()), Expr: &FieldRef{Name: f.SrcName()}, } - return newExpressionSize(sizeFun) + return newExpressionSize(sizeFun, elsz.exact) } else { - return newExpressionSize(simpleLen) + return newExpressionSize(simpleLen, elsz.exact) } case *Union: - return newExpressionSize(simpleLen) + return newExpressionSize(simpleLen, elsz.exact) case *Base: - return newExpressionSize(simpleLen) + return newExpressionSize(simpleLen, elsz.exact) case *Resource: - return newExpressionSize(simpleLen) + return newExpressionSize(simpleLen, elsz.exact) case *TypeDef: - return newExpressionSize(simpleLen) + return newExpressionSize(simpleLen, elsz.exact) default: log.Panicf("Cannot compute list size with type '%T'.", f.Type) } @@ -258,7 +264,7 @@ func (f *ValueField) Size() Size { }, }, }, - }) + }, true) return maskSize.Add(listSize) } @@ -270,7 +276,7 @@ func (f *ValueField) ListLength() Size { Name: f.MaskName, }, }, - }) + }, true) } func (f *ValueField) Initialize(p *Protocol) { @@ -303,7 +309,7 @@ func (f *SwitchField) SrcType() string { // expression that finds *which* bitcase fields are included, and sums the // sizes of those fields. func (f *SwitchField) Size() Size { - return newFixedSize(0) + return newFixedSize(0, true) } func (f *SwitchField) Initialize(p *Protocol) { |