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118 lines
2.9 KiB
Go
118 lines
2.9 KiB
Go
// Code generated by hostgen. DO NOT EDIT.
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package testpkg
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import (
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"context"
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"encoding/json"
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extism "github.com/extism/go-sdk"
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)
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// MetaGetResponse is the response type for Meta.Get.
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type MetaGetResponse struct {
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Value any `json:"value,omitempty"`
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Error string `json:"error,omitempty"`
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}
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// MetaSetRequest is the request type for Meta.Set.
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type MetaSetRequest struct {
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Data map[string]any `json:"data"`
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}
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// RegisterMetaHostFunctions registers Meta service host functions.
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// The returned host functions should be added to the plugin's configuration.
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func RegisterMetaHostFunctions(service MetaService) []extism.HostFunction {
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return []extism.HostFunction{
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newMetaGetHostFunction(service),
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newMetaSetHostFunction(service),
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}
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}
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func newMetaGetHostFunction(service MetaService) extism.HostFunction {
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return extism.NewHostFunctionWithStack(
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"meta_get",
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func(ctx context.Context, p *extism.CurrentPlugin, stack []uint64) {
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// Read parameters from stack
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key, err := p.ReadString(stack[0])
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if err != nil {
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return
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}
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// Call the service method
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value, err := service.Get(ctx, key)
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if err != nil {
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metaWriteError(p, stack, err)
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return
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}
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// Write JSON response to plugin memory
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resp := MetaGetResponse{
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Value: value,
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}
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metaWriteResponse(p, stack, resp)
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},
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[]extism.ValueType{extism.ValueTypePTR},
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[]extism.ValueType{extism.ValueTypePTR},
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)
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}
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func newMetaSetHostFunction(service MetaService) extism.HostFunction {
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return extism.NewHostFunctionWithStack(
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"meta_set",
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func(ctx context.Context, p *extism.CurrentPlugin, stack []uint64) {
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// Read JSON request from plugin memory
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reqBytes, err := p.ReadBytes(stack[0])
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if err != nil {
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metaWriteError(p, stack, err)
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return
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}
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var req MetaSetRequest
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if err := json.Unmarshal(reqBytes, &req); err != nil {
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metaWriteError(p, stack, err)
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return
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}
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// Call the service method
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err = service.Set(ctx, req.Data)
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if err != nil {
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// Write error string to plugin memory
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if ptr, err := p.WriteString(err.Error()); err == nil {
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stack[0] = ptr
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}
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return
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}
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// Write empty string to indicate success
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if ptr, err := p.WriteString(""); err == nil {
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stack[0] = ptr
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}
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},
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[]extism.ValueType{extism.ValueTypePTR},
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[]extism.ValueType{extism.ValueTypePTR},
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)
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}
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// metaWriteResponse writes a JSON response to plugin memory.
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func metaWriteResponse(p *extism.CurrentPlugin, stack []uint64, resp any) {
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respBytes, err := json.Marshal(resp)
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if err != nil {
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metaWriteError(p, stack, err)
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return
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}
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respPtr, err := p.WriteBytes(respBytes)
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if err != nil {
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stack[0] = 0
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return
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}
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stack[0] = respPtr
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}
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// metaWriteError writes an error response to plugin memory.
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func metaWriteError(p *extism.CurrentPlugin, stack []uint64, err error) {
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errResp := struct {
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Error string `json:"error"`
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}{Error: err.Error()}
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respBytes, _ := json.Marshal(errResp)
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respPtr, _ := p.WriteBytes(respBytes)
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stack[0] = respPtr
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}
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