wasi: Fill out std::fs module for WASI · rust-lang/rust@38fb7a7 (original) (raw)
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`#![stable(feature = "rust1", since = "1.0.0")]
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use crate::ffi::{OsStr, OsString};
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use crate::mem;
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use crate::sys::os_str::Buf;
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use crate::sys_common::{FromInner, IntoInner, AsInner};
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/// WASI-specific extensions to [OsString].
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///
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/// [OsString]: ../../../../std/ffi/struct.OsString.html
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#[stable(feature = "rust1", since = "1.0.0")]
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pub trait OsStringExt {
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/// Creates an OsString from a byte vector.
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#[stable(feature = "rust1", since = "1.0.0")]
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fn from_vec(vec: Vec) -> Self;
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/// Yields the underlying byte vector of this OsString.
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#[stable(feature = "rust1", since = "1.0.0")]
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fn into_vec(self) -> Vec;
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}
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#[stable(feature = "rust1", since = "1.0.0")]
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impl OsStringExt for OsString {
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fn from_vec(vec: Vec) -> OsString {
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FromInner::from_inner(Buf { inner: vec })
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}
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fn into_vec(self) -> Vec {
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self.into_inner().inner
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}
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}
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/// WASI-specific extensions to [OsStr].
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///
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/// [OsStr]: ../../../../std/ffi/struct.OsStr.html
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`#[stable(feature = "rust1", since = "1.0.0")]
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pub trait OsStrExt {
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#[stable(feature = "rust1", since = "1.0.0")]
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/// Creates an [OsStr] from a byte slice.
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///
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/// [OsStr]: ../../../ffi/struct.OsStr.html
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fn from_bytes(slice: &[u8]) -> &Self;
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/// Gets the underlying byte view of the [OsStr] slice.
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///
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/// [OsStr]: ../../../ffi/struct.OsStr.html
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#[stable(feature = "rust1", since = "1.0.0")]
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fn as_bytes(&self) -> &[u8];
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}
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#[stable(feature = "rust1", since = "1.0.0")]
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impl OsStrExt for OsStr {
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fn from_bytes(slice: &[u8]) -> &OsStr {
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unsafe { mem::transmute(slice) }
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}
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fn as_bytes(&self) -> &[u8] {
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&self.as_inner().inner
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}
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}
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pub use crate::sys_common::os_str_bytes::*;
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