wolfpack-std 0.3.0

The standard library of wolfpack, as wolfpack source. Internal part of wolfpack-lang, not a stable API
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//! Files (spec chapter 7, section 7).

module std.fs

types {
    pub enum FsError {
        /// The path.
        NotFound(String)
        PermissionDenied(String)
        /// A message from the target.
        Other(String)
    }
}

impl {
    FsError: Error {
        fn message(self) -> String {
            match self {
                FsError.NotFound(path) => "file not found: " + path
                FsError.PermissionDenied(path) => "permission denied: " + path
                FsError.Other(text) => text.copy()
            }
        }
    }
}

functions {
    pub intrinsic fn read_text(path: String) -> Result<String, FsError>
    pub intrinsic fn write_text(path: String, content: String) -> Result<Void, FsError>
    pub intrinsic fn exists(path: String) -> Bool
}