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Mateusz Gajewski
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Nov 12, 2016
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178
cli/internal/test_fixtures/generated/basic_plugin/plugin.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,178 @@ | ||
| package main | ||
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| // Autogenerated by github.com/wendigo/go-bind-plugin on 2016-11-12 19:45:36.989271091 +0100 CET, do not edit! | ||
| // Command: go-bind-plugin -plugin-path ./internal/test_fixtures/generated/basic_plugin/plugin.so -plugin-package ./internal/test_fixtures/basic_plugin -output-name TestWrapper -output-path ./internal/test_fixtures/generated/basic_plugin/plugin.go -output-package main -sha256 -rebuild | ||
| // | ||
| // Plugin ./internal/test_fixtures/generated/basic_plugin/plugin.so info: | ||
| // - package: github.com/wendigo/go-bind-plugin/cli/internal/test_fixtures/basic_plugin | ||
| // - size: 2447824 bytes | ||
| // - sha256: e3d68f431cbee5fd88dd41dca29d38f09c148d83ed668612a0e4813808280483 | ||
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| import ( | ||
| "crypto/sha256" | ||
| "encoding/hex" | ||
| "fmt" | ||
| "io" | ||
| "os" | ||
| "plugin" | ||
| "reflect" | ||
| "strings" | ||
| ) | ||
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| // TestWrapper wraps symbols (functions and variables) exported by plugin github.com/wendigo/go-bind-plugin/cli/internal/test_fixtures/basic_plugin | ||
| // | ||
| // See docs at https://godoc.org/github.com/wendigo/go-bind-plugin/cli/internal/test_fixtures/basic_plugin | ||
| type TestWrapper struct { | ||
| // Exported functions | ||
| _NonReturningFunction func() | ||
| _ReturningInt32 func() int32 | ||
| _ReturningIntArray func() [3]int32 | ||
| _ReturningStringSlice func() []string | ||
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| // Exported variables (public references) | ||
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| } | ||
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| // NonReturningFunction function was exported from plugin github.com/wendigo/go-bind-plugin/cli/internal/test_fixtures/basic_plugin symbol 'NonReturningFunction' | ||
| // | ||
| // See docs at https://godoc.org/github.com/wendigo/go-bind-plugin/cli/internal/test_fixtures/basic_plugin#NonReturningFunction | ||
| func (p *TestWrapper) NonReturningFunction() { | ||
| p._NonReturningFunction() | ||
| } | ||
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| // ReturningInt32 function was exported from plugin github.com/wendigo/go-bind-plugin/cli/internal/test_fixtures/basic_plugin symbol 'ReturningInt32' | ||
| // | ||
| // See docs at https://godoc.org/github.com/wendigo/go-bind-plugin/cli/internal/test_fixtures/basic_plugin#ReturningInt32 | ||
| func (p *TestWrapper) ReturningInt32() int32 { | ||
| return p._ReturningInt32() | ||
| } | ||
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| // ReturningIntArray function was exported from plugin github.com/wendigo/go-bind-plugin/cli/internal/test_fixtures/basic_plugin symbol 'ReturningIntArray' | ||
| // | ||
| // See docs at https://godoc.org/github.com/wendigo/go-bind-plugin/cli/internal/test_fixtures/basic_plugin#ReturningIntArray | ||
| func (p *TestWrapper) ReturningIntArray() [3]int32 { | ||
| return p._ReturningIntArray() | ||
| } | ||
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| // ReturningStringSlice function was exported from plugin github.com/wendigo/go-bind-plugin/cli/internal/test_fixtures/basic_plugin symbol 'ReturningStringSlice' | ||
| // | ||
| // See docs at https://godoc.org/github.com/wendigo/go-bind-plugin/cli/internal/test_fixtures/basic_plugin#ReturningStringSlice | ||
| func (p *TestWrapper) ReturningStringSlice() []string { | ||
| return p._ReturningStringSlice() | ||
| } | ||
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| // String returnes textual representation of the wrapper. It provides info on exported symbols and variables. | ||
| func (p *TestWrapper) String() string { | ||
| var lines []string | ||
| lines = append(lines, "Struct TestWrapper:") | ||
| lines = append(lines, "\t- Generated on: 2016-11-12 19:45:36.989271091 +0100 CET") | ||
| lines = append(lines, "\t- Command: go-bind-plugin -plugin-path ./internal/test_fixtures/generated/basic_plugin/plugin.so -plugin-package ./internal/test_fixtures/basic_plugin -output-name TestWrapper -output-path ./internal/test_fixtures/generated/basic_plugin/plugin.go -output-package main -sha256 -rebuild") | ||
| lines = append(lines, "\nPlugin info:") | ||
| lines = append(lines, "\t- package: github.com/wendigo/go-bind-plugin/cli/internal/test_fixtures/basic_plugin") | ||
| lines = append(lines, "\t- sha256 sum: e3d68f431cbee5fd88dd41dca29d38f09c148d83ed668612a0e4813808280483") | ||
| lines = append(lines, "\t- size: 2447824 bytes") | ||
| lines = append(lines, "\nExported functions (4):") | ||
| lines = append(lines, "\t- NonReturningFunction func()") | ||
| lines = append(lines, "\t- ReturningInt32 func() (int32)") | ||
| lines = append(lines, "\t- ReturningIntArray func() ([3]int32)") | ||
| lines = append(lines, "\t- ReturningStringSlice func() ([]string)") | ||
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| return strings.Join(lines, "\n") | ||
| } | ||
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| // BindTestWrapper loads plugin from the given path and binds symbols (variables and functions) | ||
| // to the TestWrapper struct. | ||
| // When plugin is loaded sha256 checksum is computed and checked against precomputed once. On mismatch error is returned. | ||
| func BindTestWrapper(path string) (*TestWrapper, error) { | ||
| p, err := plugin.Open(path) | ||
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| if err != nil { | ||
| return nil, fmt.Errorf("could not open plugin: %s", err) | ||
| } | ||
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| fileChecksum := func(path string) (string, error) { | ||
| hasher := sha256.New() | ||
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| file, err := os.Open(path) | ||
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| if err != nil { | ||
| return "", err | ||
| } | ||
| defer file.Close() | ||
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| if _, err := io.Copy(hasher, file); err != nil { | ||
| return "", err | ||
| } | ||
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| return hex.EncodeToString(hasher.Sum(nil)), nil | ||
| } | ||
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| checksum, err := fileChecksum(path) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("could not calculate file %s checksum", path) | ||
| } | ||
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| if checksum != "e3d68f431cbee5fd88dd41dca29d38f09c148d83ed668612a0e4813808280483" { | ||
| return nil, fmt.Errorf("SHA256 checksum mismatch (expected: e3d68f431cbee5fd88dd41dca29d38f09c148d83ed668612a0e4813808280483, actual: %s)", checksum) | ||
| } | ||
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| ret := new(TestWrapper) | ||
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| funcNonReturningFunction, err := p.Lookup("NonReturningFunction") | ||
| if err != nil { | ||
| return nil, fmt.Errorf("could not import function 'NonReturningFunction', symbol not found: %s", err) | ||
| } | ||
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| if typed, ok := funcNonReturningFunction.(func()); ok { | ||
| ret._NonReturningFunction = typed | ||
| } else { | ||
| return nil, fmt.Errorf("could not import function 'NonReturningFunction', incompatible types 'func()' and '%s'", reflect.TypeOf(funcNonReturningFunction)) | ||
| } | ||
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| funcReturningInt32, err := p.Lookup("ReturningInt32") | ||
| if err != nil { | ||
| return nil, fmt.Errorf("could not import function 'ReturningInt32', symbol not found: %s", err) | ||
| } | ||
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| if typed, ok := funcReturningInt32.(func() int32); ok { | ||
| ret._ReturningInt32 = typed | ||
| } else { | ||
| return nil, fmt.Errorf("could not import function 'ReturningInt32', incompatible types 'func() (int32)' and '%s'", reflect.TypeOf(funcReturningInt32)) | ||
| } | ||
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| funcReturningIntArray, err := p.Lookup("ReturningIntArray") | ||
| if err != nil { | ||
| return nil, fmt.Errorf("could not import function 'ReturningIntArray', symbol not found: %s", err) | ||
| } | ||
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| if typed, ok := funcReturningIntArray.(func() [3]int32); ok { | ||
| ret._ReturningIntArray = typed | ||
| } else { | ||
| return nil, fmt.Errorf("could not import function 'ReturningIntArray', incompatible types 'func() ([3]int32)' and '%s'", reflect.TypeOf(funcReturningIntArray)) | ||
| } | ||
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| funcReturningStringSlice, err := p.Lookup("ReturningStringSlice") | ||
| if err != nil { | ||
| return nil, fmt.Errorf("could not import function 'ReturningStringSlice', symbol not found: %s", err) | ||
| } | ||
|
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| if typed, ok := funcReturningStringSlice.(func() []string); ok { | ||
| ret._ReturningStringSlice = typed | ||
| } else { | ||
| return nil, fmt.Errorf("could not import function 'ReturningStringSlice', incompatible types 'func() ([]string)' and '%s'", reflect.TypeOf(funcReturningStringSlice)) | ||
| } | ||
|
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| return ret, nil | ||
| } | ||
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| func main() { | ||
| pl, err := BindTestWrapper("./internal/test_fixtures/generated/basic_plugin/plugin.so") | ||
|
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| if err != nil { | ||
| fmt.Println(err) | ||
| os.Exit(1) | ||
| } | ||
|
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| fmt.Println(pl.ReturningIntArray()) | ||
| } |
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