Struct lightningcss::targets::Browsers

pub struct Browsers {
    pub android: Option<u32>,
    pub chrome: Option<u32>,
    pub edge: Option<u32>,
    pub firefox: Option<u32>,
    pub ie: Option<u32>,
    pub ios_saf: Option<u32>,
    pub opera: Option<u32>,
    pub safari: Option<u32>,
    pub samsung: Option<u32>,
}

Browser versions to compile CSS for.

Versions are represented as a single 24-bit integer, with one byte per major.minor.patch component.

Example

This example represents a target of Safari 13.2.0.

use lightningcss::targets::Browsers;

let targets = Browsers {
  safari: Some((13 << 16) | (2 << 8)),
  ..Browsers::default()
};

Fields

android: Option<u32>

chrome: Option<u32>

edge: Option<u32>

firefox: Option<u32>

ie: Option<u32>

ios_saf: Option<u32>

opera: Option<u32>

safari: Option<u32>

samsung: Option<u32>

Implementations

impl Browsers

pub fn from_browserslist<S: AsRef<str>, I: IntoIterator<Item = S>>( query: I ) -> Result<Option<Browsers>, Error>

Available on crate feature browserslist only.

Parses a list of browserslist queries into Lightning CSS targets.

pub fn load_browserslist() -> Result<Option<Browsers>, Error>

Available on crate feature browserslist only.

Finds browserslist configuration, selects queries by environment and loads the resulting queries into LightningCSS targets.

Configuration resolution is modeled after the original browserslist nodeJS package. The configuration is resolved in the following order:

• If a BROWSERSLIST environment variable is present, then load targets from its value. This is analog to the --targets CLI option. Example: BROWSERSLIST="firefox ESR" lightningcss [OPTIONS] <INPUT_FILE>
• If a BROWSERSLIST_CONFIG environment variable is present, then resolve the file at the provided path. Then parse and use targets from package.json or any browserslist configuration file pointed to by the environment variable. Example: BROWSERSLIST_CONFIG="../config/browserslist" lightningcss [OPTIONS] <INPUT_FILE>
• If none of the above apply, then find, parse and use targets from the first browserslist, .browserslistrc or package.json configuration file in any parent directory.

When using parsed configuration from browserslist, .browserslistrc or package.json configuration files, the environment determined by:

• the BROWSERSLIST_ENV environment variable if present,
• otherwise the NODE_ENV environment varialbe if present,
• otherwise production is used.

If no targets are found for the resulting environment, then the defaults configuration section is used.

Trait Implementations

impl Clone for Browsers

fn clone(&self) -> Browsers

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Browsers

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Browsers

fn default() -> Browsers

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Browsers

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Browsers

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for Browsers