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ReadAll/WriteAll

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This commit is contained in:
Brian Fiete 2021-01-26 06:34:31 -08:00
parent 61f54a4f88
commit fdcbb55ff2
1 changed files with 34 additions and 1 deletions
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35
BeefLibs/corlib/src/IO/File.bf
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@ -25,6 +25,38 @@ namespace System.IO
class File class File
{ {
public static Result<void, FileError> ReadAll(StringView path, List<uint8> outData)
{
FileStream fs = scope FileStream();
var result = fs.Open(path, .Open, .Read);
if (result case .Err(let err))
return .Err(.FileOpenError(err));
while (true)
{
uint8[4096] buffer;
switch (fs.TryRead(.(&buffer, 4096)))
{
case .Ok(let bytes):
if (bytes == 0)
return .Ok;
outData.AddRange(.(&buffer, bytes));
case .Err(let err):
return .Err(err);
}
}
}
public static Result<void> WriteAll(StringView path, Span<uint8> data, bool doAppend = false)
{
FileStream fs = scope FileStream();
var result = fs.Open(path, doAppend ? .Append : .Create, .Write);
if (result case .Err)
return .Err;
fs.TryWrite(.((uint8*)data.Ptr, data.Length));
return .Ok;
}
public static Result<void, FileError> ReadAllText(StringView path, String outText, bool preserveLineEnding = false) public static Result<void, FileError> ReadAllText(StringView path, String outText, bool preserveLineEnding = false)
{ {
StreamReader sr = scope StreamReader(); StreamReader sr = scope StreamReader();
@ -48,7 +80,8 @@ namespace System.IO
var result = fs.Open(path, doAppend ? .Append : .Create, .Write); var result = fs.Open(path, doAppend ? .Append : .Create, .Write);
if (result case .Err) if (result case .Err)
return .Err; return .Err;
fs.TryWrite(.((uint8*)text.Ptr, text.Length)); if (fs.TryWrite(.((uint8*)text.Ptr, text.Length)) case .Err(let err))
return .Err(err);
return .Ok; return .Ok;
} }