Emitter

MMO\client\scs · 1 symbol · generated 5 Oct 2026

class

Emitter

Collects the generated CssRule and turns them into css: resolves @order, groups the rules of a same at-rule (@media, @supports, @keyframes) together and formats the output.

class MMO\client\scs\Emitter

Namespace: MMO\client\scs
See: SourceMap record where each selector and each declaration came from, as they are emitted.

Wrapped rules are always emitted after the unwrapped ones, so a media query never loses to the rule it is meant to override (`the` spec, 21 and 46). The css is written through [`write`](https://mcp.mmoframework.fr/documentation/mmo.client/php/scs/Emitter.md#emitter-write), which keeps the current line and column: that is what lets a

Index

	column
	line
	map
	out	the css being written, and where the next character will land in it
	rules
	sequence
	mark($location)	Record that what is about to be written comes from this source position.
	next()
	rule($selectors, $wrappers, $order, $location)	Create and register a rule.
	rules()
	toCss($indent, $minify, $optimize, $map)
	write($text)	Append css, keeping track of where the next character lands -- the source map is built from these positions.
	writeGroup($wrappers, $rules, $indent, $minify)
	writeRule($rule, $indent, $minify, $depth)

Properties6

column

protected int $column = 0

Type: int

line

protected int $line = 0

Type: int

map

protected ?MMO\client\scs\SourceMap $map = null

Type: null | SourceMap

out

the css being written, and where the next character will land in it

protected string $out = ''

Type: string

rules

protected array $rules = []

Type: array

sequence

protected int $sequence = 0

Type: int

Methods8

mark($location)

Emitter.php:111

Record that what is about to be written comes from this source position.

protected function mark(?MMO\client\scs\SourceLocation $location): void

$location	null \| SourceLocation
returns	void

next()

Emitter.php:39

function next(): int

returns

int

the next emission rank, used to keep the source order

rule($selectors, $wrappers, $order, $location)

Emitter.php:32

Create and register a rule.

function rule( array $selectors, array $wrappers = [], int $order = 0, ?MMO\client\scs\SourceLocation $location = null ): MMO\client\scs\CssRule

$selectors	array
$wrappers = []	array
$order = 0	int
$location = null	null \| SourceLocation
returns	CssRule

rules()

Emitter.php:42

function rules(): array

returns

array

every registered rule, empty ones included

toCss($indent, $minify, $optimize, $map)

Emitter.php:51

function toCss( string $indent = ' ', bool $minify = false, bool $optimize = false, ?MMO\client\scs\SourceMap $map = null ): string

$indent = ' '	string	the indentation of one level
$minify = false	bool	true to emit compact css
$optimize = false	bool	true to merge duplicated selectors and drop overridden declarations
$map = null	null \| SourceMap	filled, while emitting, with where each selector and declaration came from
returns	string	the generated css

write($text)

Emitter.php:95

Append css, keeping track of where the next character lands -- the source map is built from these positions.

protected function write(string $text): void

$text	string
returns	void

writeGroup($wrappers, $rules, $indent, $minify)

Emitter.php:119

protected function writeGroup(array $wrappers, array $rules, string $indent, bool $minify): void

$wrappers	array
$rules	array
$indent	string
$minify	bool
returns	void

writeRule($rule, $indent, $minify, $depth)

Emitter.php:142

protected function writeRule(MMO\client\scs\CssRule $rule, string $indent, bool $minify, int $depth): void

$rule	CssRule
$indent	string
$minify	bool
$depth	int
returns	void