feat: implement without C dependency

.github/workflows/ci.yml

@@ -22,13 +22,13 @@ jobs:
         uses: actions/setup-go@v3
         with:
           cache: true
-          go-version: '1.20'
+          go-version: '1.21.1'
 
       - name: Install TinyGo
         uses: acifani/setup-tinygo@v1.1.0
         with:
-          tinygo-version: 0.28.1
-          binaryen-version: "110"
+          tinygo-version: 0.30.0
+          binaryen-version: "116"
 
       - name: Compile example
         run: |

env.go

@@ -0,0 +1,76 @@
+package pdk
+
+type extismPointer uint64
+
+//go:wasmimport env extism_input_length
+func extism_input_length() uint64
+
+//go:wasmimport env extism_length
+func extism_length(extismPointer) uint64
+
+//go:wasmimport env extism_alloc
+func extism_alloc(uint64) extismPointer
+
+//go:wasmimport env extism_free
+func extism_free(extismPointer)
+
+//go:wasmimport env extism_input_load_u8
+func extism_input_load_u8_(extismPointer) uint32
+
+func extism_input_load_u8(p extismPointer) uint8 {
+	return uint8(extism_input_load_u8_(p))
+}
+
+//go:wasmimport env extism_input_load_u64
+func extism_input_load_u64(extismPointer) uint64
+
+//go:wasmimport env extism_output_set
+func extism_output_set(extismPointer, uint64)
+
+//go:wasmimport env extism_error_set
+func extism_error_set(extismPointer)
+
+//go:wasmimport env extism_config_get
+func extism_config_get(extismPointer) extismPointer
+
+//go:wasmimport env extism_var_get
+func extism_var_get(extismPointer) extismPointer
+
+//go:wasmimport env extism_var_set
+func extism_var_set(extismPointer, extismPointer)
+
+//go:wasmimport env extism_store_u8
+func extism_store_u8_(extismPointer, uint32)
+func extism_store_u8(p extismPointer, v uint8) {
+	extism_store_u8_(p, uint32(v))
+}
+
+//go:wasmimport env extism_load_u8
+func extism_load_u8_(extismPointer) uint32
+func extism_load_u8(p extismPointer) uint8 {
+	return uint8(extism_load_u8_(p))
+}
+
+//go:wasmimport env extism_store_u64
+func extism_store_u64(extismPointer, uint64)
+
+//go:wasmimport env extism_load_u64
+func extism_load_u64(extismPointer) uint64
+
+//go:wasmimport env extism_http_request
+func extism_http_request(extismPointer, extismPointer) extismPointer
+
+//go:wasmimport env extism_http_status_code
+func extism_http_status_code() int32
+
+//go:wasmimport env extism_log_info
+func extism_log_info(extismPointer)
+
+//go:wasmimport env extism_log_debug
+func extism_log_debug(extismPointer)
+
+//go:wasmimport env extism_log_warn
+func extism_log_warn(extismPointer)
+
+//go:wasmimport env extism_log_error
+func extism_log_error(extismPointer)

example/go.mod

@@ -1,6 +1,6 @@
 module github.com/extism/go-pdk/example
 
-go 1.19
+go 1.21.0
 
 require github.com/extism/go-pdk v0.0.0-20220910220145-f385a5f19d1d