Put different wasm implementations into different modules

.github/workflows/lint-witness.yaml

@@ -0,0 +1,36 @@
+name: lint-witness
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+
+jobs:
+  lint:
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-go@v4
+        with:
+          go-version: 1.20.4
+      - name: lint witness
+        uses: golangci/golangci-lint-action@v3
+        with:
+          version: v1.52.2
+          working-directory: witness
+      - name: lint witness/wazero
+        uses: golangci/golangci-lint-action@v3
+        with:
+          version: v1.52.2
+          working-directory: witness/wazero
+      - name: lint witness/wasmer
+        uses: golangci/golangci-lint-action@v3
+        with:
+          version: v1.52.2
+          working-directory: witness/wasmer
+      - name: lint witness/test_wasm_impls
+        uses: golangci/golangci-lint-action@v3
+        with:
+          version: v1.52.2
+          working-directory: witness/test_wasm_impls

.github/workflows/test-witness.yaml

@@ -0,0 +1,32 @@
+name: test-witness
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+
+jobs:
+  test:
+    strategy:
+      matrix:
+        containers:
+          - 1.18.10-bullseye
+          - 1.19.9-bullseye
+          - 1.20.4-bullseye
+    runs-on: ubuntu-20.04
+    container: golang:${{matrix.containers}}
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/cache@v3
+        with:
+          path: |
+            ~/.cache/go-build
+            /go/pkg/mod
+          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+          restore-keys: |
+            ${{ runner.os }}-go-
+      - run: cd witness && go test -race -timeout=60s -v ./...
+      - run: cd witness/wazero && go test -race -timeout=60s -v ./...
+      - run: cd witness/wasmer && go test -race -timeout=60s -v ./...
+      - run: cd witness/test_wasm_impls && go test -race -timeout=300s -v ./...

witness/README.md

@@ -5,7 +5,7 @@ Calculates witness, that can be passed to a prover ([snarkjs](https://github.com
 ## Installation
 
 ```
-go get github.com/iden3/go-rapidsnark/witness
+go get github.com/iden3/go-rapidsnark/witness/v2
 ```
 
 ## Dependencies