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Do not link (import from stdlib) the 'print' family of functions.

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We don't need the "print to stdout" family of functions to be fast
and prefer to reduce the binary size by not linking the printing code
(and all of its dependencies).

This reduces the SIL of the code of a file that contains 'println()' from
~4000** lines of SIL down to ~200.

**(depending on the assert configuration)

Swift SVN r24404
This commit is contained in:
Nadav Rotem
2015-01-13 23:24:57 +00:00
parent 6c012b5193
commit b51a4d0bb5
1 changed files with 6 additions and 0 deletions
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6
stdlib/core/OutputStream.swift
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@@ -102,6 +102,7 @@ func _adHocPrint<T, TargetStream : OutputStreamType>(
/// Do not overload this function for your type. Instead, adopt one of the
/// protocols mentioned above.
@inline(never)
@semantics("stdlib.noimport")
public func print<T, TargetStream : OutputStreamType>(
object: T, inout target: TargetStream
) {
@@ -133,6 +134,7 @@ public func print<T, TargetStream : OutputStreamType>(
/// Do not overload this function for your type. Instead, adopt one of the
/// protocols mentioned above.
@inline(never)
@semantics("stdlib.noimport")
public func println<T, TargetStream : OutputStreamType>(
object: T, inout target: TargetStream
) {
@@ -148,6 +150,8 @@ public func println<T, TargetStream : OutputStreamType>(
///
/// Do not overload this function for your type. Instead, adopt one of the
/// protocols mentioned above.
@inline(never)
@semantics("stdlib.noimport")
public func print<T>(object: T) {
var stdoutStream = _Stdout()
print(object, &stdoutStream)
@@ -163,6 +167,7 @@ public func print<T>(object: T) {
/// Do not overload this function for your type. Instead, adopt one of the
/// protocols mentioned above.
@inline(never)
@semantics("stdlib.noimport")
public func println<T>(object: T) {
var stdoutStream = _Stdout()
print(object, &stdoutStream)
@@ -171,6 +176,7 @@ public func println<T>(object: T) {
/// Writes a single newline character into the standard output.
@inline(never)
@semantics("stdlib.noimport")
public func println() {
var stdoutStream = _Stdout()
stdoutStream.write("\n")