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all: change optional to result of io (#16075)

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This commit is contained in:
yuyi
2022-10-16 14:28:57 +08:00
committed by GitHub
parent 6e46933c55
commit f6844e9766
187 changed files with 1885 additions and 1874 deletions
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30
vlib/os/file.js.v
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@@ -27,7 +27,7 @@ fn error_size_of_type_0() IError {
return IError(&ErrSizeOfTypeIs0{})
}
*/
pub fn open_file(path string, mode string, options ...int) ?File {
pub fn open_file(path string, mode string, options ...int) !File {
mut res := File{}
$if js_node {
#if (!options) { options = new array([]); }
@@ -47,13 +47,13 @@ pub fn open_file(path string, mode string, options ...int) ?File {
}
// open tries to open a file for reading and returns back a read-only `File` object.
pub fn open(path string) ?File {
f := open_file(path, 'r')?
pub fn open(path string) !File {
f := open_file(path, 'r')!
return f
}
pub fn create(path string) ?File {
f := open_file(path, 'w')?
pub fn create(path string) !File {
f := open_file(path, 'w')!
return f
}
@@ -78,7 +78,7 @@ pub fn stderr() File {
}
}
pub fn (f &File) read(mut buf []u8) ?int {
pub fn (f &File) read(mut buf []u8) !int {
if buf.len == 0 {
return 0
}
@@ -93,7 +93,7 @@ pub fn (f &File) read(mut buf []u8) ?int {
return nbytes
}
pub fn (mut f File) write(buf []u8) ?int {
pub fn (mut f File) write(buf []u8) !int {
if !f.is_opened {
return error('file is not opened')
}
@@ -107,13 +107,13 @@ pub fn (mut f File) write(buf []u8) ?int {
// writeln writes the string `s` into the file, and appends a \n character.
// It returns how many bytes were written, including the \n character.
pub fn (mut f File) writeln(s string) ?int {
mut nbytes := f.write(s.bytes())?
nbytes += f.write('\n'.bytes())?
pub fn (mut f File) writeln(s string) !int {
mut nbytes := f.write(s.bytes())!
nbytes += f.write('\n'.bytes())!
return nbytes
}
pub fn (mut f File) write_to(pos u64, buf []u8) ?int {
pub fn (mut f File) write_to(pos u64, buf []u8) !int {
if !f.is_opened {
return error('file is not opened')
}
@@ -127,8 +127,8 @@ pub fn (mut f File) write_to(pos u64, buf []u8) ?int {
// write_string writes the string `s` into the file
// It returns how many bytes were actually written.
pub fn (mut f File) write_string(s string) ?int {
nbytes := f.write(s.bytes())?
pub fn (mut f File) write_string(s string) !int {
nbytes := f.write(s.bytes())!
return nbytes
}
@@ -136,9 +136,9 @@ pub fn (mut f File) close() {
#$fs.closeSync(f.valueOf().fd.valueOf())
}
pub fn (mut f File) write_full_buffer(s voidptr, buffer_len usize) ? {}
pub fn (mut f File) write_full_buffer(s voidptr, buffer_len usize) ! {}
pub fn (mut f File) write_array(buffer array) ?int {
pub fn (mut f File) write_array(buffer array) !int {
if !f.is_opened {
return error('file is not opened')
}