Commit a3efdd7279

@@ -1,127 +0,0 @@
-const std = @import("../std.zig");
-const builtin = @import("builtin");
-const io = std.io;
-
-/// Provides `io.GenericReader`, `io.GenericWriter`, and `io.SeekableStream` for in-memory buffers as
-/// well as files.
-/// For memory sources, if the supplied byte buffer is const, then `io.GenericWriter` is not available.
-/// The error set of the stream functions is the error set of the corresponding file functions.
-pub const StreamSource = union(enum) {
-    // TODO: expose UEFI files to std.os in a way that allows this to be true
-    const has_file = (builtin.os.tag != .freestanding and builtin.os.tag != .uefi);
-
-    /// The stream access is redirected to this buffer.
-    buffer: io.FixedBufferStream([]u8),
-
-    /// The stream access is redirected to this buffer.
-    /// Writing to the source will always yield `error.AccessDenied`.
-    const_buffer: io.FixedBufferStream([]const u8),
-
-    /// The stream access is redirected to this file.
-    /// On freestanding, this must never be initialized!
-    file: if (has_file) std.fs.File else void,
-
-    pub const ReadError = io.FixedBufferStream([]u8).ReadError || (if (has_file) std.fs.File.ReadError else error{});
-    pub const WriteError = error{AccessDenied} || io.FixedBufferStream([]u8).WriteError || (if (has_file) std.fs.File.WriteError else error{});
-    pub const SeekError = io.FixedBufferStream([]u8).SeekError || (if (has_file) std.fs.File.SeekError else error{});
-    pub const GetSeekPosError = io.FixedBufferStream([]u8).GetSeekPosError || (if (has_file) std.fs.File.GetSeekPosError else error{});
-
-    pub const Reader = io.GenericReader(*StreamSource, ReadError, read);
-    pub const Writer = io.GenericWriter(*StreamSource, WriteError, write);
-    pub const SeekableStream = io.SeekableStream(
-        *StreamSource,
-        SeekError,
-        GetSeekPosError,
-        seekTo,
-        seekBy,
-        getPos,
-        getEndPos,
-    );
-
-    pub fn read(self: *StreamSource, dest: []u8) ReadError!usize {
-        switch (self.*) {
-            .buffer => |*x| return x.read(dest),
-            .const_buffer => |*x| return x.read(dest),
-            .file => |x| if (!has_file) unreachable else return x.read(dest),
-        }
-    }
-
-    pub fn write(self: *StreamSource, bytes: []const u8) WriteError!usize {
-        switch (self.*) {
-            .buffer => |*x| return x.write(bytes),
-            .const_buffer => return error.AccessDenied,
-            .file => |x| if (!has_file) unreachable else return x.write(bytes),
-        }
-    }
-
-    pub fn seekTo(self: *StreamSource, pos: u64) SeekError!void {
-        switch (self.*) {
-            .buffer => |*x| return x.seekTo(pos),
-            .const_buffer => |*x| return x.seekTo(pos),
-            .file => |x| if (!has_file) unreachable else return x.seekTo(pos),
-        }
-    }
-
-    pub fn seekBy(self: *StreamSource, amt: i64) SeekError!void {
-        switch (self.*) {
-            .buffer => |*x| return x.seekBy(amt),
-            .const_buffer => |*x| return x.seekBy(amt),
-            .file => |x| if (!has_file) unreachable else return x.seekBy(amt),
-        }
-    }
-
-    pub fn getEndPos(self: *StreamSource) GetSeekPosError!u64 {
-        switch (self.*) {
-            .buffer => |*x| return x.getEndPos(),
-            .const_buffer => |*x| return x.getEndPos(),
-            .file => |x| if (!has_file) unreachable else return x.getEndPos(),
-        }
-    }
-
-    pub fn getPos(self: *StreamSource) GetSeekPosError!u64 {
-        switch (self.*) {
-            .buffer => |*x| return x.getPos(),
-            .const_buffer => |*x| return x.getPos(),
-            .file => |x| if (!has_file) unreachable else return x.getPos(),
-        }
-    }
-
-    pub fn reader(self: *StreamSource) Reader {
-        return .{ .context = self };
-    }
-
-    pub fn writer(self: *StreamSource) Writer {
-        return .{ .context = self };
-    }
-
-    pub fn seekableStream(self: *StreamSource) SeekableStream {
-        return .{ .context = self };
-    }
-};
-
-test "refs" {
-    std.testing.refAllDecls(StreamSource);
-}
-
-test "mutable buffer" {
-    var buffer: [64]u8 = undefined;
-    var source = StreamSource{ .buffer = std.io.fixedBufferStream(&buffer) };
-
-    var writer = source.writer();
-
-    try writer.writeAll("Hello, World!");
-
-    try std.testing.expectEqualStrings("Hello, World!", source.buffer.getWritten());
-}
-
-test "const buffer" {
-    const buffer: [64]u8 = "Hello, World!".* ++ ([1]u8{0xAA} ** 51);
-    var source = StreamSource{ .const_buffer = std.io.fixedBufferStream(&buffer) };
-
-    var reader = source.reader();
-
-    var dst_buffer: [13]u8 = undefined;
-    try reader.readNoEof(&dst_buffer);
-
-    try std.testing.expectEqualStrings("Hello, World!", &dst_buffer);
-}

@@ -473,8 +473,6 @@ pub const findByteWriter = @import("Io/find_byte_writer.zig").findByteWriter;
 
 pub const BufferedAtomicFile = @import("Io/buffered_atomic_file.zig").BufferedAtomicFile;
 
-pub const StreamSource = @import("Io/stream_source.zig").StreamSource;
-
 pub const tty = @import("Io/tty.zig");
 
 /// A Writer that doesn't write to anything.
@@ -904,6 +902,5 @@ test {
     _ = @import("Io/counting_reader.zig");
     _ = @import("Io/fixed_buffer_stream.zig");
     _ = @import("Io/seekable_stream.zig");
-    _ = @import("Io/stream_source.zig");
     _ = @import("Io/test.zig");
 }

@@ -390,15 +390,6 @@ set(ZIG_STAGE2_SOURCES
     lib/std/Io.zig
     lib/std/Io/Reader.zig
     lib/std/Io/Writer.zig
-    lib/std/Io/buffered_atomic_file.zig
-    lib/std/Io/buffered_writer.zig
-    lib/std/Io/change_detection_stream.zig
-    lib/std/Io/counting_reader.zig
-    lib/std/Io/counting_writer.zig
-    lib/std/Io/find_byte_writer.zig
-    lib/std/Io/fixed_buffer_stream.zig
-    lib/std/Io/limited_reader.zig
-    lib/std/Io/seekable_stream.zig
     lib/std/Progress.zig
     lib/std/Random.zig
     lib/std/Target.zig