Memory.IndexByte is unneeded with better understanding of write-through
on Memory.Read. Removing this also helps usher folks into the myriad of
Go utilities that are compatable with []byte.
This also reduces the complexity of WASI which didn't need to re-buffer
random reads (also due to above).
Signed-off-by: Adrian Cole <adrian@tetrate.io>
This adds two clock interfaces: sys.Walltime and sys.Nanotime to
allow implementations to override readings for purposes of security or
determinism.
The default values of both are a fake timestamp, to avoid the sandbox
break we formerly had by returning the real time. This is similar to how
we don't inherit OS Env values.
The componentized successor to wasi_snapshot_preview1 is not compatible
with the prior imports or even error numbers. Before releasing wazero
1.0 we need to change this package to reflect that WASI 2 is effectively
a different API.
Fixes#263
Signed-off-by: Adrian Cole <adrian@tetrate.io>
I researched what is available for improving godoc. Notably, this does
the following on every non-internal go file (tests excluded).
* consolidates links where there's a better single one
* wraps See where there are multiple relevant links
* reduces use of Note: where possible
* Uses preformatting for bullets similar to gob
* Uses titles where appropriate
I looked into it and while there are many ways to re-render godoc into
markdown, there are limited options on what to do in godoc itself. There
are tricks implicitly used where preformatting (tab indent) is used to
avoid having to add extra lines everywhere. This is done in gob, for
example.
See https://go.dev/src/encoding/gob/doc.go
See https://github.com/fluhus/godoc-tricks/blob/master/doc.go
See #426
Signed-off-by: Adrian Cole <adrian@tetrate.io>
This consolidates the pattern used for context overrides, notably
replacing clock overrides via experimental.WithTimeNowUnixNano
and making all context keys internal.
This also makes sure experimental example tests are handled the same
way, notably backfilling one for WithFS
