a91140f7f7
WebAssembly Core Working Draft 1 recently came out. Before that, we had a toe-hold feature bucked called FinishedFeatures. This replaces `RuntimeConfig.WithFinishedFeatures` with `RuntimeConfig.WithWasmCore2`. This also adds `WithWasmCore1` for those who want to lock into 1.0 features as opposed to relying on defaults. This also fixes some design debt where we hadn't finished migrating public types that require constructor functions (NewXxx) to interfaces. By using interfaces, we prevent people from accidentally initializing key configuration directly (via &Xxx), causing nil field refs. This also helps prevent confusion about how to use the type (ex pointer or not) as there's only one way (as an interface). See https://github.com/tetratelabs/wazero/issues/516 Signed-off-by: Adrian Cole <adrian@tetrate.io>
111 lines
3.7 KiB
Go
111 lines
3.7 KiB
Go
package vs
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import (
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_ "embed"
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"testing"
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"github.com/tetratelabs/wazero/internal/wasm"
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"github.com/tetratelabs/wazero/internal/wasm/binary"
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"github.com/tetratelabs/wazero/internal/wasm/text"
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)
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// example holds the latest supported features as described in the comments of exampleText
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var example = newExample()
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// exampleText is different from exampleWat because the parser doesn't yet support all features.
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//go:embed testdata/example.wat
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var exampleText []byte
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// exampleBinary is the exampleText encoded in the WebAssembly 1.0 binary format.
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var exampleBinary = binary.EncodeModule(example)
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func newExample() *wasm.Module {
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three := wasm.Index(3)
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f32, i32, i64 := wasm.ValueTypeF32, wasm.ValueTypeI32, wasm.ValueTypeI64
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return &wasm.Module{
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TypeSection: []*wasm.FunctionType{
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{Params: []wasm.ValueType{i32, i32}, Results: []wasm.ValueType{i32}},
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{},
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{Params: []wasm.ValueType{i32, i32, i32, i32}, Results: []wasm.ValueType{i32}},
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{Params: []wasm.ValueType{i64}, Results: []wasm.ValueType{i64}},
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{Params: []wasm.ValueType{f32}, Results: []wasm.ValueType{i32}},
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{Params: []wasm.ValueType{i32, i32}, Results: []wasm.ValueType{i32, i32}},
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},
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ImportSection: []*wasm.Import{
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{
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Module: "wasi_snapshot_preview1", Name: "args_sizes_get",
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Type: wasm.ExternTypeFunc,
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DescFunc: 0,
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}, {
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Module: "wasi_snapshot_preview1", Name: "fd_write",
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Type: wasm.ExternTypeFunc,
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DescFunc: 2,
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},
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},
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FunctionSection: []wasm.Index{wasm.Index(1), wasm.Index(1), wasm.Index(0), wasm.Index(3), wasm.Index(4), wasm.Index(5)},
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CodeSection: []*wasm.Code{
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{Body: []byte{wasm.OpcodeCall, 3, wasm.OpcodeEnd}},
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{Body: []byte{wasm.OpcodeEnd}},
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{Body: []byte{wasm.OpcodeLocalGet, 0, wasm.OpcodeLocalGet, 1, wasm.OpcodeI32Add, wasm.OpcodeEnd}},
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{Body: []byte{wasm.OpcodeLocalGet, 0, wasm.OpcodeI64Extend16S, wasm.OpcodeEnd}},
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{Body: []byte{
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wasm.OpcodeLocalGet, 0x00,
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wasm.OpcodeMiscPrefix, wasm.OpcodeMiscI32TruncSatF32S,
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wasm.OpcodeEnd,
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}},
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{Body: []byte{wasm.OpcodeLocalGet, 1, wasm.OpcodeLocalGet, 0, wasm.OpcodeEnd}},
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},
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MemorySection: &wasm.Memory{Min: 1, Max: three, IsMaxEncoded: true},
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ExportSection: []*wasm.Export{
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{Name: "AddInt", Type: wasm.ExternTypeFunc, Index: wasm.Index(4)},
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{Name: "", Type: wasm.ExternTypeFunc, Index: wasm.Index(3)},
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{Name: "mem", Type: wasm.ExternTypeMemory, Index: wasm.Index(0)},
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{Name: "swap", Type: wasm.ExternTypeFunc, Index: wasm.Index(7)},
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},
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StartSection: &three,
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NameSection: &wasm.NameSection{
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ModuleName: "example",
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FunctionNames: wasm.NameMap{
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{Index: wasm.Index(0), Name: "wasi.args_sizes_get"},
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{Index: wasm.Index(1), Name: "wasi.fd_write"},
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{Index: wasm.Index(2), Name: "call_hello"},
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{Index: wasm.Index(3), Name: "hello"},
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{Index: wasm.Index(4), Name: "addInt"},
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{Index: wasm.Index(7), Name: "swap"},
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},
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LocalNames: wasm.IndirectNameMap{
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{Index: wasm.Index(1), NameMap: wasm.NameMap{
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{Index: wasm.Index(0), Name: "fd"},
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{Index: wasm.Index(1), Name: "iovs_ptr"},
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{Index: wasm.Index(2), Name: "iovs_len"},
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{Index: wasm.Index(3), Name: "nwritten_ptr"},
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}},
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{Index: wasm.Index(4), NameMap: wasm.NameMap{
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{Index: wasm.Index(0), Name: "value_1"},
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{Index: wasm.Index(1), Name: "value_2"},
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}},
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},
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},
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}
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}
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func BenchmarkWat2Wasm(b *testing.B, vsName string, vsWat2Wasm func([]byte) error) {
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b.Run("wazero", func(b *testing.B) {
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for i := 0; i < b.N; i++ {
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if m, err := text.DecodeModule(exampleText, wasm.Features20220419, wasm.MemoryLimitPages); err != nil {
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b.Fatal(err)
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} else {
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_ = binary.EncodeModule(m)
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}
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}
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})
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b.Run(vsName, func(b *testing.B) {
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for i := 0; i < b.N; i++ {
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err := vsWat2Wasm(exampleText)
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if err != nil {
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panic(err)
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}
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}
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})
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}
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