Source file src/github.com/tetratelabs/wazero/internal/gojs/testdata/stdio/main.go

Documentation: github.com/tetratelabs/wazero/internal/gojs/testdata/stdio

     1  package stdio
     2  
     3  import (
     4  	"errors"
     5  	"fmt"
     6  	"io"
     7  	"os"
     8  	"syscall"
     9  )
    10  
    11  func Main() {
    12  	b, err := io.ReadAll(os.Stdin)
    13  	if err != nil {
    14  		panic(err)
    15  	}
    16  
    17  	if _, err = fmt.Fprintln(os.Stdin, " "); errors.Unwrap(err) != syscall.EBADF {
    18  		panic(fmt.Sprint(err.Error(), "!=", syscall.EBADF))
    19  	}
    20  	printToFile("stdout", os.Stdout, len(b))
    21  	printToFile("stderr", os.Stderr, len(b))
    22  }
    23  
    24  func printToFile(name string, file *os.File, size int) {
    25  	message := fmt.Sprint(name, " ", size)
    26  	n, err := fmt.Fprintln(file, message)
    27  	if err != nil {
    28  		println(err.Error())
    29  		panic(name)
    30  	}
    31  	if n != len(message)+1 /* \n */ {
    32  		println(n, "!=", len(message))
    33  		panic(name)
    34  	}
    35  }
    36  

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