Stdout class

An IOSink connected to either the standard out or error of the process.

Provides a blocking IOSink, so using it to write will block until the output is written.

In some situations this blocking behavior is undesirable as it does not provide the same non-blocking behavior that dart:io in general exposes. Use the property nonBlocking to get an IOSink which has the non-blocking behavior.

This class can also be used to check whether stdout or stderr is connected to a terminal and query some terminal properties.

The addError API is inherited from StreamSink and calling it will result in an unhandled asynchronous error unless there is an error handler on done.

Implemented types

Properties

doneFuture
read-only, inherited
A future that will complete when the consumer closes, or when an error occurs. [...]
encodingEncoding
read / write, inherited
The Encoding used when writing strings. [...]
hashCodeint
read-only, inherited
The hash code for this object. [...]
hasTerminalbool
read-only
Whether there is a terminal attached to stdout.
nonBlockingIOSink
read-only
A non-blocking IOSink for the same output.
runtimeTypeType
read-only, inherited
A representation of the runtime type of the object.
supportsAnsiEscapesbool
read-only
Whether connected to a terminal that supports ANSI escape sequences. [...]
terminalColumnsint
read-only
The number of columns of the terminal. [...]
terminalLinesint
read-only
The number of lines of the terminal. [...]

Methods

add(List<int> data) → void
inherited
Adds byte data to the target consumer, ignoring encoding. [...]
addError(Object error, [StackTrace? stackTrace]) → void
inherited
Passes the error to the target consumer as an error event. [...]
addStream(Stream<List<int>> stream) → Future
inherited
Adds all elements of the given stream. [...]
close() → Future
inherited
Close the target consumer. [...]
flush() → Future
inherited
Returns a Future that completes once all buffered data is accepted by the underlying StreamConsumer. [...]
noSuchMethod(Invocation invocation) → dynamic
inherited
Invoked when a non-existent method or property is accessed. [...]
toString() → String
inherited
A string representation of this object. [...]
write(Object? object) → void
inherited
Converts object to a String by invoking Object.toString and adds the encoding of the result to the target consumer. [...]
writeAll(Iterable objects, [String sep = ""]) → void
inherited
Iterates over the given objects and writes them in sequence. [...]
writeCharCode(int charCode) → void
inherited
Writes the character of charCode. [...]
writeln([Object? object = ""]) → void
inherited
Converts object to a String by invoking Object.toString and writes the result to this, followed by a newline. [...]

Operators

operator ==(Object other) → bool
inherited
The equality operator. [...]

© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dart.dev/stable/2.13.0/dart-io/Stdout-class.html