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Signed-off-by: Dr. Carsten Leue <carsten.leue@de.ibm.com>
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,143 @@ | ||
package cli | ||
|
||
import ( | ||
"fmt" | ||
"log" | ||
"os" | ||
"path/filepath" | ||
"time" | ||
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C "github.com/urfave/cli/v2" | ||
) | ||
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func generateContextReaderIOEitherEitherize(f, fg *os.File, i int) { | ||
// non generic version | ||
fmt.Fprintf(f, "\n// Eitherize%d converts a function with %d parameters returning a tuple into a function with %d parameters returning a [ReaderIOEither[R]]\n// The inverse function is [Uneitherize%d]\n", i, i, i, i) | ||
fmt.Fprintf(f, "func Eitherize%d[F ~func(context.Context", i) | ||
for j := 0; j < i; j++ { | ||
fmt.Fprintf(f, ", T%d", j) | ||
} | ||
fmt.Fprintf(f, ") (R, error)") | ||
for j := 0; j < i; j++ { | ||
fmt.Fprintf(f, ", T%d", j) | ||
} | ||
fmt.Fprintf(f, ", R any](f F) func(") | ||
for j := 0; j < i; j++ { | ||
if j > 0 { | ||
fmt.Fprintf(f, ", ") | ||
} | ||
fmt.Fprintf(f, "T%d", j) | ||
} | ||
fmt.Fprintf(f, ") ReaderIOEither[R] {\n") | ||
fmt.Fprintf(f, " return G.Eitherize%d[ReaderIOEither[R]](f)\n", i) | ||
fmt.Fprintln(f, "}") | ||
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// generic version | ||
fmt.Fprintf(fg, "\n// Eitherize%d converts a function with %d parameters returning a tuple into a function with %d parameters returning a [GRA]\n// The inverse function is [Uneitherize%d]\n", i, i, i, i) | ||
fmt.Fprintf(fg, "func Eitherize%d[GRA ~func(context.Context) GIOA, F ~func(context.Context", i) | ||
for j := 0; j < i; j++ { | ||
fmt.Fprintf(fg, ", T%d", j) | ||
} | ||
fmt.Fprintf(fg, ") (R, error), GIOA ~func() E.Either[error, R]") | ||
for j := 0; j < i; j++ { | ||
fmt.Fprintf(fg, ", T%d", j) | ||
} | ||
fmt.Fprintf(fg, ", R any](f F) func(") | ||
for j := 0; j < i; j++ { | ||
if j > 0 { | ||
fmt.Fprintf(fg, ", ") | ||
} | ||
fmt.Fprintf(fg, "T%d", j) | ||
} | ||
fmt.Fprintf(fg, ") GRA {\n") | ||
fmt.Fprintf(fg, " return RE.Eitherize%d[GRA](f)\n", i) | ||
fmt.Fprintln(fg, "}") | ||
} | ||
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func generateContextReaderIOEitherHelpers(filename string, count int) error { | ||
dir, err := os.Getwd() | ||
if err != nil { | ||
return err | ||
} | ||
absDir, err := filepath.Abs(dir) | ||
if err != nil { | ||
return err | ||
} | ||
pkg := filepath.Base(absDir) | ||
f, err := os.Create(filepath.Clean(filename)) | ||
if err != nil { | ||
return err | ||
} | ||
defer f.Close() | ||
// construct subdirectory | ||
genFilename := filepath.Join("generic", filename) | ||
err = os.MkdirAll("generic", os.ModePerm) | ||
if err != nil { | ||
return err | ||
} | ||
fg, err := os.Create(filepath.Clean(genFilename)) | ||
if err != nil { | ||
return err | ||
} | ||
defer fg.Close() | ||
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// log | ||
log.Printf("Generating code in [%s] for package [%s] with [%d] repetitions ...", filename, pkg, count) | ||
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// some header | ||
fmt.Fprintln(f, "// Code generated by go generate; DO NOT EDIT.") | ||
fmt.Fprintln(f, "// This file was generated by robots at") | ||
fmt.Fprintf(f, "// %s\n", time.Now()) | ||
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fmt.Fprintf(f, "package %s\n\n", pkg) | ||
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fmt.Fprintf(f, ` | ||
import ( | ||
"context" | ||
G "github.com/ibm/fp-go/context/%s/generic" | ||
) | ||
`, pkg) | ||
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// some header | ||
fmt.Fprintln(fg, "// Code generated by go generate; DO NOT EDIT.") | ||
fmt.Fprintln(fg, "// This file was generated by robots at") | ||
fmt.Fprintf(fg, "// %s\n", time.Now()) | ||
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fmt.Fprintf(fg, "package generic\n\n") | ||
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fmt.Fprintf(fg, ` | ||
import ( | ||
"context" | ||
E "github.com/ibm/fp-go/either" | ||
RE "github.com/ibm/fp-go/readerioeither/generic" | ||
) | ||
`) | ||
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generateContextReaderIOEitherEitherize(f, fg, 0) | ||
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for i := 1; i <= count; i++ { | ||
// eitherize | ||
generateContextReaderIOEitherEitherize(f, fg, i) | ||
} | ||
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return nil | ||
} | ||
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func ContextReaderIOEitherCommand() *C.Command { | ||
return &C.Command{ | ||
Name: "contextreaderioeither", | ||
Usage: "generate code for ContextReaderIOEither", | ||
Flags: []C.Flag{ | ||
flagCount, | ||
flagFilename, | ||
}, | ||
Action: func(ctx *C.Context) error { | ||
return generateContextReaderIOEitherHelpers( | ||
ctx.String(keyFilename), | ||
ctx.Int(keyCount), | ||
) | ||
}, | ||
} | ||
} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,163 @@ | ||
// Copyright (c) 2023 IBM Corp. | ||
// All rights reserved. | ||
// | ||
// Licensed under the Apache License, Version 2.0 (the "License"); | ||
// you may not use this file except in compliance with the License. | ||
// You may obtain a copy of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, software | ||
// distributed under the License is distributed on an "AS IS" BASIS, | ||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
// See the License for the specific language governing permissions and | ||
// limitations under the License. | ||
package cli | ||
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import ( | ||
"fmt" | ||
"log" | ||
"os" | ||
"path/filepath" | ||
"time" | ||
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C "github.com/urfave/cli/v2" | ||
) | ||
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func generateReaderFrom(f, fg *os.File, i int) { | ||
// non generic version | ||
fmt.Fprintf(f, "\n// From%d converts a function with %d parameters returning a [R] into a function with %d parameters returning a [Reader[C, R]]\n// The first parameter is considered to be the context [C] of the reader\n", i, i+1, i) | ||
fmt.Fprintf(f, "func From%d[F ~func(C", i) | ||
for j := 0; j < i; j++ { | ||
fmt.Fprintf(f, ", T%d", j) | ||
} | ||
fmt.Fprintf(f, ") R") | ||
for j := 0; j < i; j++ { | ||
fmt.Fprintf(f, ", T%d", j) | ||
} | ||
fmt.Fprintf(f, ", C, R any](f F) func(") | ||
for j := 0; j < i; j++ { | ||
if j > 0 { | ||
fmt.Fprintf(f, ", ") | ||
} | ||
fmt.Fprintf(f, "T%d", j) | ||
} | ||
fmt.Fprintf(f, ") Reader[C, R] {\n") | ||
fmt.Fprintf(f, " return G.From%d[Reader[C, R]](f)\n", i) | ||
fmt.Fprintln(f, "}") | ||
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// generic version | ||
fmt.Fprintf(fg, "\n// From%d converts a function with %d parameters returning a [R] into a function with %d parameters returning a [GRA]\n// The first parameter is considered to be the context [C].\n", i, i+1, i) | ||
fmt.Fprintf(fg, "func From%d[GRA ~func(C) R, F ~func(C", i) | ||
for j := 0; j < i; j++ { | ||
fmt.Fprintf(fg, ", T%d", j) | ||
} | ||
fmt.Fprintf(fg, ") R") | ||
for j := 0; j < i; j++ { | ||
fmt.Fprintf(fg, ", T%d", j) | ||
} | ||
fmt.Fprintf(fg, ", C, R any](f F) func(") | ||
for j := 0; j < i; j++ { | ||
if j > 0 { | ||
fmt.Fprintf(fg, ", ") | ||
} | ||
fmt.Fprintf(fg, "T%d", j) | ||
} | ||
fmt.Fprintf(fg, ") GRA {\n") | ||
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fmt.Fprintf(fg, " return func(") | ||
for j := 0; j < i; j++ { | ||
if j > 0 { | ||
fmt.Fprintf(fg, ", ") | ||
} | ||
fmt.Fprintf(fg, "t%d T%d", j, j) | ||
} | ||
fmt.Fprintf(fg, ") GRA {\n") | ||
fmt.Fprintf(fg, " return MakeReader[GRA](func(r C) R {\n") | ||
fmt.Fprintf(fg, " return f(r") | ||
for j := 0; j < i; j++ { | ||
fmt.Fprintf(fg, ", t%d", j) | ||
} | ||
fmt.Fprintf(fg, ")\n") | ||
fmt.Fprintf(fg, " })\n") | ||
fmt.Fprintf(fg, " }\n") | ||
fmt.Fprintf(fg, "}\n") | ||
} | ||
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func generateReaderHelpers(filename string, count int) error { | ||
dir, err := os.Getwd() | ||
if err != nil { | ||
return err | ||
} | ||
absDir, err := filepath.Abs(dir) | ||
if err != nil { | ||
return err | ||
} | ||
pkg := filepath.Base(absDir) | ||
f, err := os.Create(filepath.Clean(filename)) | ||
if err != nil { | ||
return err | ||
} | ||
defer f.Close() | ||
// construct subdirectory | ||
genFilename := filepath.Join("generic", filename) | ||
err = os.MkdirAll("generic", os.ModePerm) | ||
if err != nil { | ||
return err | ||
} | ||
fg, err := os.Create(filepath.Clean(genFilename)) | ||
if err != nil { | ||
return err | ||
} | ||
defer fg.Close() | ||
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// log | ||
log.Printf("Generating code in [%s] for package [%s] with [%d] repetitions ...", filename, pkg, count) | ||
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// some header | ||
fmt.Fprintln(f, "// Code generated by go generate; DO NOT EDIT.") | ||
fmt.Fprintln(f, "// This file was generated by robots at") | ||
fmt.Fprintf(f, "// %s\n", time.Now()) | ||
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fmt.Fprintf(f, "package %s\n\n", pkg) | ||
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fmt.Fprintf(f, ` | ||
import ( | ||
G "github.com/ibm/fp-go/%s/generic" | ||
) | ||
`, pkg) | ||
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// some header | ||
fmt.Fprintln(fg, "// Code generated by go generate; DO NOT EDIT.") | ||
fmt.Fprintln(fg, "// This file was generated by robots at") | ||
fmt.Fprintf(fg, "// %s\n", time.Now()) | ||
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fmt.Fprintf(fg, "package generic\n\n") | ||
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// from | ||
generateReaderFrom(f, fg, 0) | ||
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for i := 1; i <= count; i++ { | ||
// from | ||
generateReaderFrom(f, fg, i) | ||
} | ||
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return nil | ||
} | ||
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func ReaderCommand() *C.Command { | ||
return &C.Command{ | ||
Name: "reader", | ||
Usage: "generate code for Reader", | ||
Flags: []C.Flag{ | ||
flagCount, | ||
flagFilename, | ||
}, | ||
Action: func(ctx *C.Context) error { | ||
return generateReaderHelpers( | ||
ctx.String(keyFilename), | ||
ctx.Int(keyCount), | ||
) | ||
}, | ||
} | ||
} |
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