Improve stream module documentation and avoid default arguments.

This commit is contained in:
Sönke Ludwig 2016-11-02 20:59:55 +01:00
parent b96c20ef54
commit 1fad8f5c9d

View file

@ -5,6 +5,11 @@
look at the `vibe.stream` package. The `vibe.stream.operations` module contains additional
high-level operations on streams, such as reading streams by line or as a whole.
Note that starting with vibe-core 1.0.0, streams can be of either `struct` or `class` type.
Any APIs that take streams as a parameter should use a template type parameter that is tested
using the appropriate trait (e.g. `isInputStream`) instead of assuming the specific interface
type (e.g. `InputStream`).
Copyright: © 2012-2016 RejectedSoftware e.K.
License: Subject to the terms of the MIT license, as written in the included LICENSE.txt file.
Authors: Sönke Ludwig
@ -110,7 +115,9 @@ interface OutputStream {
`nbytes` for `nbytes > 0`. If the input stream contains less than `nbytes` of data, an
exception is thrown.
*/
void write(InputStream stream, ulong nbytes = 0);
void write(InputStream stream, ulong nbytes);
/// ditto
final void write(InputStream stream) { write(stream, 0); }
protected final void writeDefault(InputStream stream, ulong nbytes = 0)
@trusted // FreeListRef
@ -234,12 +241,82 @@ final class NullOutputStream : OutputStream {
void finalize() {}
}
/** Tests if the given aggregate type is a valid input stream.
See_also: `validateInputStream`
*/
enum isInputStream(T) = checkInterfaceConformance!(T, InputStream) is null;
/** Tests if the given aggregate type is a valid output stream.
See_also: `validateOutputStream`
*/
enum isOutputStream(T) = checkInterfaceConformance!(T, OutputStream) is null;
/** Tests if the given aggregate type is a valid bidirectional stream.
See_also: `validateStream`
*/
enum isStream(T) = checkInterfaceConformance!(T, Stream) is null;
/** Tests if the given aggregate type is a valid connection stream.
See_also: `validateConnectionStream`
*/
enum isConnectionStream(T) = checkInterfaceConformance!(T, ConnectionStream) is null;
/** Tests if the given aggregate type is a valid random access stream.
See_also: `validateRandomAccessStream`
*/
enum isRandomAccessStream(T) = checkInterfaceConformance!(T, RandomAccessStream) is null;
mixin template validateInputStream(T) { import vibe.internal.traits : validateInterfaceConformance; mixin validateInterfaceConformance!(T, InputStream); }
mixin template validateOutputStream(T) { import vibe.internal.traits : validateInterfaceConformance; mixin validateInterfaceConformance!(T, OutputStream); }
mixin template validateConnectionStream(T) { import vibe.internal.traits : validateInterfaceConformance; mixin validateInterfaceConformance!(T, ConnectionStream); }
mixin template validateRandomAccessStream(T) { import vibe.internal.traits : validateInterfaceConformance; mixin validateInterfaceConformance!(T, RandomAccessStream); }
/** Verifies that the given type is a valid input stream.
A valid input stream type must implement all methods of the `InputStream` interface. Inheriting
form `InputStream` is not strictly necessary, which also enables struct types to be considered
as stream implementations.
See_Also: `isInputStream`
*/
mixin template validateInputStream(T) { import vibe.internal.traits : validateInterfaceConformance; mixin validateInterfaceConformance!(T, .InputStream); }
/** Verifies that the given type is a valid output stream.
A valid output stream type must implement all methods of the `OutputStream` interface. Inheriting
form `OutputStream` is not strictly necessary, which also enables struct types to be considered
as stream implementations.
See_Also: `isOutputStream`
*/
mixin template validateOutputStream(T) { import vibe.internal.traits : validateInterfaceConformance; mixin validateInterfaceConformance!(T, .OutputStream); }
/** Verifies that the given type is a valid bidirectional stream.
A valid stream type must implement all methods of the `Stream` interface. Inheriting
form `Stream` is not strictly necessary, which also enables struct types to be considered
as stream implementations.
See_Also: `isStream`
*/
mixin template validateStream(T) { import vibe.internal.traits : validateInterfaceConformance; mixin validateInterfaceConformance!(T, .Stream); }
/** Verifies that the given type is a valid connection stream.
A valid connection stream type must implement all methods of the `ConnectionStream` interface.
Inheriting form `ConnectionStream` is not strictly necessary, which also enables struct types
to be considered as stream implementations.
See_Also: `isConnectionStream`
*/
mixin template validateConnectionStream(T) { import vibe.internal.traits : validateInterfaceConformance; mixin validateInterfaceConformance!(T, .ConnectionStream); }
/** Verifies that the given type is a valid random access stream.
A valid random access stream type must implement all methods of the `RandomAccessStream`
interface. Inheriting form `RandomAccessStream` is not strictly necessary, which also enables
struct types to be considered as stream implementations.
See_Also: `isRandomAccessStream`
*/
mixin template validateRandomAccessStream(T) { import vibe.internal.traits : validateInterfaceConformance; mixin validateInterfaceConformance!(T, .RandomAccessStream); }