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| author | aarzilli <alessandro.arzilli@gmail.com> | 2014-05-02 15:09:23 +0200 |
|---|---|---|
| committer | Přemysl Janouch <p@janouch.name> | 2018-09-08 16:49:22 +0200 |
| commit | a548d9d0f7b889627c43b18811357fad88760b2d (patch) | |
| tree | 0d4a0ad302d753638dfdb16159e03d1fb87b0872 /nexgb/xgbgen/go.go | |
| parent | 1f8bd79abee5d96a41a934d1eb8c74e90ccbcc8f (diff) | |
| download | haven-a548d9d0f7b889627c43b18811357fad88760b2d.tar.gz haven-a548d9d0f7b889627c43b18811357fad88760b2d.tar.xz haven-a548d9d0f7b889627c43b18811357fad88760b2d.zip | |
Fix Issue #21: automatic calculation of alignment padding after lists
Diffstat (limited to 'nexgb/xgbgen/go.go')
| -rw-r--r-- | nexgb/xgbgen/go.go | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/nexgb/xgbgen/go.go b/nexgb/xgbgen/go.go index 6c680e8..ace4e00 100644 --- a/nexgb/xgbgen/go.go +++ b/nexgb/xgbgen/go.go @@ -103,15 +103,27 @@ func (td *TypeDef) Define(c *Context) { // Pad fields func (f *PadField) Define(c *Context) { - c.Putln("// padding: %d bytes", f.Bytes) + if f.Align > 0 { + c.Putln("// alignment gap to multiple of %d", f.Align) + } else { + c.Putln("// padding: %d bytes", f.Bytes) + } } func (f *PadField) Read(c *Context, prefix string) { - c.Putln("b += %s // padding", f.Size()) + if f.Align > 0 { + c.Putln("b = (b + %d) & ^%d // alignment gap", f.Align-1, f.Align-1) + } else { + c.Putln("b += %s // padding", f.Size()) + } } func (f *PadField) Write(c *Context, prefix string) { - c.Putln("b += %s // padding", f.Size()) + if f.Align > 0 { + c.Putln("b = (b + %d) & ^%d // alignment gap", f.Align-1, f.Align-1) + } else { + c.Putln("b += %s // padding", f.Size()) + } } // Local fields |