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package stdlib
import (
"os"
"github.com/d5/tengo/objects"
)
func makeOSFile(file *os.File) *objects.ImmutableMap {
return &objects.ImmutableMap{
Value: map[string]objects.Object{
// chdir() => true/error
"chdir": &objects.UserFunction{Name: "chdir", Value: FuncARE(file.Chdir)}, //
// chown(uid int, gid int) => true/error
"chown": &objects.UserFunction{Name: "chown", Value: FuncAIIRE(file.Chown)}, //
// close() => error
"close": &objects.UserFunction{Name: "close", Value: FuncARE(file.Close)}, //
// name() => string
"name": &objects.UserFunction{Name: "name", Value: FuncARS(file.Name)}, //
// readdirnames(n int) => array(string)/error
"readdirnames": &objects.UserFunction{Name: "readdirnames", Value: FuncAIRSsE(file.Readdirnames)}, //
// sync() => error
"sync": &objects.UserFunction{Name: "sync", Value: FuncARE(file.Sync)}, //
// write(bytes) => int/error
"write": &objects.UserFunction{Name: "write", Value: FuncAYRIE(file.Write)}, //
// write(string) => int/error
"write_string": &objects.UserFunction{Name: "write_string", Value: FuncASRIE(file.WriteString)}, //
// read(bytes) => int/error
"read": &objects.UserFunction{Name: "read", Value: FuncAYRIE(file.Read)}, //
// chmod(mode int) => error
"chmod": &objects.UserFunction{
Value: func(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
return nil, objects.ErrWrongNumArguments
}
i1, ok := objects.ToInt64(args[0])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "int(compatible)",
Found: args[0].TypeName(),
}
}
return wrapError(file.Chmod(os.FileMode(i1))), nil
},
},
// seek(offset int, whence int) => int/error
"seek": &objects.UserFunction{
Value: func(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 2 {
return nil, objects.ErrWrongNumArguments
}
i1, ok := objects.ToInt64(args[0])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "int(compatible)",
Found: args[0].TypeName(),
}
}
i2, ok := objects.ToInt(args[1])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "second",
Expected: "int(compatible)",
Found: args[1].TypeName(),
}
}
res, err := file.Seek(i1, i2)
if err != nil {
return wrapError(err), nil
}
return &objects.Int{Value: res}, nil
},
},
// stat() => imap(fileinfo)/error
"stat": &objects.UserFunction{
Value: func(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 0 {
return nil, objects.ErrWrongNumArguments
}
return osStat(&objects.String{Value: file.Name()})
},
},
},
}
}
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