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Fix wasi::fs::OpenOptions to imply write when append is on #75189

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merged 1 commit into from
Aug 13, 2020
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Fix wasi::fs::OpenOptions to imply write when append is on #75189

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8 changes: 5 additions & 3 deletions library/std/src/sys/wasi/fs.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -46,6 +46,7 @@ pub struct DirEntry {
pub struct OpenOptions {
read: bool,
write: bool,
append: bool,
dirflags: wasi::Lookupflags,
fdflags: wasi::Fdflags,
oflags: wasi::Oflags,
Expand Down Expand Up @@ -270,8 +271,9 @@ impl OpenOptions {
}
}

pub fn append(&mut self, set: bool) {
self.fdflag(wasi::FDFLAGS_APPEND, set);
pub fn append(&mut self, append: bool) {
self.append = append;
self.fdflag(wasi::FDFLAGS_APPEND, append);
}

pub fn dsync(&mut self, set: bool) {
Expand Down Expand Up @@ -321,7 +323,7 @@ impl OpenOptions {
base |= wasi::RIGHTS_FD_READ;
base |= wasi::RIGHTS_FD_READDIR;
}
if self.write {
if self.write || self.append {
base |= wasi::RIGHTS_FD_WRITE;
base |= wasi::RIGHTS_FD_DATASYNC;
base |= wasi::RIGHTS_FD_ALLOCATE;
Expand Down