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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/iimport.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/iimport.go')
| -rw-r--r-- | src/cmd/compile/internal/typecheck/iimport.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/cmd/compile/internal/typecheck/iimport.go b/src/cmd/compile/internal/typecheck/iimport.go index 8df75b2285..d7c118b631 100644 --- a/src/cmd/compile/internal/typecheck/iimport.go +++ b/src/cmd/compile/internal/typecheck/iimport.go @@ -1228,6 +1228,9 @@ func (r *importReader) node() ir.Node { } func (r *importReader) op() ir.Op { + if debug && r.uint64() != magic { + base.Fatalf("import stream has desynchronized") + } return ir.Op(r.uint64()) } |