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| author | Keith Randall <khr@golang.org> | 2021-03-05 09:49:28 -0800 |
|---|---|---|
| committer | Keith Randall <khr@golang.org> | 2021-03-09 17:51:10 +0000 |
| commit | b60a3a8cfbc6096babe72ebcee0733bba496cf9a (patch) | |
| tree | 8918e38b1c3e9e98a57988bd677f904a7e44700d /src/cmd/compile/internal/typecheck/iexport.go | |
| parent | a70eb2c9f2e3d52116b90a21ce10718356197ee5 (diff) | |
| download | go-b60a3a8cfbc6096babe72ebcee0733bba496cf9a.tar.gz go-b60a3a8cfbc6096babe72ebcee0733bba496cf9a.zip | |
cmd/compile: add debugging mode for import/export
Just add a simple magic number with each op, to detect when
the reader gets desynchronized from the writer.
Change-Id: Iac7dab7f465b0021b1d7ae31c8f8a353ac3663a2
Reviewed-on: https://go-review.googlesource.com/c/go/+/299769
Trust: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Dan Scales <danscales@google.com>
Diffstat (limited to 'src/cmd/compile/internal/typecheck/iexport.go')
| -rw-r--r-- | src/cmd/compile/internal/typecheck/iexport.go | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/cmd/compile/internal/typecheck/iexport.go b/src/cmd/compile/internal/typecheck/iexport.go index 38ac753201..6f33ca1597 100644 --- a/src/cmd/compile/internal/typecheck/iexport.go +++ b/src/cmd/compile/internal/typecheck/iexport.go @@ -246,6 +246,11 @@ const ( interfaceType ) +const ( + debug = false + magic = 0x6742937dc293105 +) + func WriteExports(out *bufio.Writer) { p := iexporter{ allPkgs: map[*types.Pkg]bool{}, @@ -1584,6 +1589,9 @@ func (w *exportWriter) expr(n ir.Node) { } func (w *exportWriter) op(op ir.Op) { + if debug { + w.uint64(magic) + } w.uint64(uint64(op)) } |