Support for css

Cargo.toml

@@ -17,6 +17,7 @@ name = "swc"
 [dependencies]
 swc_atoms = { path ="./atoms" }
 swc_common = { path ="./common", features = ["sourcemap", "concurrent"] }
+swc_css = { path ="./css" }
 swc_ecma_ast = { path ="./ecmascript/ast" }
 swc_ecma_codegen = { path ="./ecmascript/codegen" }
 swc_ecma_parser = { path ="./ecmascript/parser" }

atoms/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "swc_atoms"
 build = "build.rs"
-version = "0.2.2"
+version = "0.2.3"
 authors = ["강동윤 <kdy1997.dev@gmail.com>"]
 license = "Apache-2.0/MIT"
 repository = "https://github.com/swc-project/swc.git"
@@ -13,4 +13,4 @@ edition = "2018"
 string_cache = "0.8"
 
 [build-dependencies]
-string_cache_codegen = "0.5"
+string_cache_codegen = "0.5"

atoms/words.txt

@@ -586,6 +586,7 @@ break
 call
 case
 catch
+charset
 class
 concat
 const
@@ -607,6 +608,7 @@ export
 extends
 false
 finally
+font-face
 for
 from
 function
@@ -615,16 +617,19 @@ global
 if
 implements
 import
+important
 in
 infer
 instanceof
 interface
 is
 iterator
 key
+keyframes
 keyof
 length
 let
+media
 meta
 module
 namespace
@@ -646,6 +651,7 @@ set
 static
 string
 super
+supports
 switch
 symbol
 target

css/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+authors = ["강동윤 <kdy1997.dev@gmail.com>"]
+edition = "2018"
+name = "swc_css"
+version = "0.1.0"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+swc_css_ast = {path = "./ast"}
+swc_css_parser = {path = "./parser"}

css/ast/Cargo.toml

@@ -0,0 +1,13 @@
+[package]
+name = "swc_css_ast"
+version = "0.1.0"
+authors = ["강동윤 <kdy1997.dev@gmail.com>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+swc_atoms = { path = "../../atoms" }
+swc_common = { path = "../../common" }
+swc_visit = { path = "../../visit" }
+serde = { version = "1", features = ["derive"] }

css/ast/src/at_rule.rs

@@ -0,0 +1,115 @@
+use crate::{media_query::MediaQuery, Number, Property, Text};
+use swc_common::{ast_node, Span};
+#[ast_node]
+pub enum AtRule {
+    #[tag("CharsetRule")]
+    Charset(CharsetRule),
+    #[tag("MediaRule")]
+    Media(MediaRule),
+    #[tag("ImportRule")]
+    Import(ImportRule),
+    #[tag("SupportsRule")]
+    Supports(SupportsRule),
+    #[tag("KeyframesRule")]
+    Keyframes(KeyframesRule),
+    #[tag("FontFaceRule")]
+    FontFace(FontFaceRule),
+    #[tag("*")]
+    Unknown(UnknownAtRule),
+}
+
+#[ast_node]
+pub struct CharsetRule {
+    pub span: Span,
+    pub charset: Text,
+}
+#[ast_node]
+pub struct MediaRule {
+    pub span: Span,
+    pub query: Box<MediaQuery>,
+}
+
+#[ast_node]
+pub struct ImportRule {
+    pub span: Span,
+    /// This field includes quotes.
+    pub src: Text,
+}
+
+#[ast_node]
+pub struct PageRule {
+    pub span: Span,
+    /// TODO: Create a dedicated ast type.
+    pub selector: Option<Text>,
+}
+
+#[ast_node]
+pub struct SupportsRule {
+    pub span: Span,
+    /// TODO: Create a dedicated ast type.
+    pub query: Box<SupportsQuery>,
+}
+
+#[ast_node]
+pub enum SupportsQuery {
+    #[tag("Property")]
+    Property(Property),
+
+    #[tag("AndSupportsQuery")]
+    And(AndSupportsQuery),
+
+    #[tag("OrSupportsQuery")]
+    Or(OrSupportsQuery),
+}
+
+#[ast_node]
+pub struct AndSupportsQuery {
+    pub span: Span,
+    pub queries: Vec<SupportsQuery>,
+}
+
+#[ast_node]
+pub struct OrSupportsQuery {
+    pub span: Span,
+    pub queries: Vec<SupportsQuery>,
+}
+
+#[ast_node]
+pub struct KeyframesRule {
+    pub span: Span,
+    pub keyframe: Vec<KeyframeElement>,
+}
+
+#[ast_node]
+pub struct KeyframeElement {
+    pub span: Span,
+    pub selector: KeyframeSelector,
+    pub properties: Vec<Property>,
+}
+
+#[ast_node]
+pub enum KeyframeSelector {
+    #[tag("KeyframePercentSelector")]
+    Percent(KeyframePercentSelector),
+    #[tag("Text")]
+    Extra(Text),
+}
+
+#[ast_node]
+pub struct KeyframePercentSelector {
+    pub span: Span,
+    pub percent: Number,
+}
+
+#[ast_node]
+pub struct FontFaceRule {
+    pub span: Span,
+    pub properties: Vec<Property>,
+}
+
+#[ast_node]
+pub struct UnknownAtRule {
+    pub span: Span,
+    pub name: Text,
+    pub extras: Text,
+}

css/ast/src/lib.rs

@@ -0,0 +1,132 @@
+#![deny(unused)]
+
+pub use self::{at_rule::*, media_query::*};
+pub use at_rule::AtRule;
+use serde::{Deserialize, Serialize};
+use swc_atoms::JsWord;
+use swc_common::{ast_node, Span};
+
+mod at_rule;
+mod media_query;
+
+#[ast_node]
+pub struct Text {
+    pub span: Span,
+    pub sym: JsWord,
+}
+
+#[ast_node]
+pub struct Number {
+    pub span: Span,
+    pub value: Box<Value>,
+}
+
+#[ast_node]
+pub struct Stylesheet {
+    pub span: Span,
+    pub rules: Vec<Rule>,
+}
+
+#[ast_node]
+pub enum Rule {
+    #[tag("AtRule")]
+    At(AtRule),
+    #[tag("StyleRule")]
+    Style(StyleRule),
+}
+
+#[ast_node]
+pub struct StyleRule {
+    pub span: Span,
+    pub selectors: Vec<Selector>,
+    pub properties: Vec<Property>,
+}
+
+#[ast_node]
+pub struct Selector {
+    pub span: Span,
+    pub tag: Option<TagSelector>,
+    pub base: Vec<BaseSelector>,
+    pub pseudo_class: Option<Text>,
+    pub pseudo_element: Option<Text>,
+}
+
+#[ast_node]
+pub struct IdSelector {
+    pub span: Span,
+    /// Does not include `#`
+    pub text: Text,
+}
+
+#[ast_node]
+pub struct ClassSelector {
+    pub span: Span,
+    /// Does not include `.`
+    pub text: Text,
+}
+
+#[ast_node]
+pub struct TagSelector {
+    pub span: Span,
+    pub text: Text,
+}
+
+#[ast_node]
+pub enum BaseSelector {
+    #[tag("IdSelector")]
+    Id(IdSelector),
+    #[tag("ClassSelector")]
+    Class(ClassSelector),
+}
+
+#[ast_node]
+pub struct Property {
+    pub span: Span,
+    pub name: Text,
+    pub value: Value,
+    /// The span includes `!`
+    pub important: Option<Span>,
+}
+
+#[ast_node]
+pub enum Value {
+    #[tag("ParenValue")]
+    Paren(ParenValue),
+    #[tag("UnitValue")]
+    Unit(UnitValue),
+    #[tag("Number")]
+    Number(Number),
+    #[tag("HashValue")]
+    Hash(HashValue),
+}
+
+#[ast_node]
+pub struct HashValue {
+    /// Includes `#`
+    pub span: Span,
+    /// Does **not** include `#`
+    pub value: Text,
+}
+
+#[ast_node]
+pub struct UnitValue {
+    pub span: Span,
+    pub value: Text,
+    pub unit: SpannedUnit,
+}
+
+#[ast_node]
+pub struct SpannedUnit {
+    pub span: Span,
+    pub unit: Unit,
+}
+#[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
+pub enum Unit {
+    Px,
+}
+
+#[ast_node]
+pub struct ParenValue {
+    pub span: Span,
+    pub value: Box<Value>,
+}

css/ast/src/media_query.rs

@@ -0,0 +1,21 @@
+use swc_common::{ast_node, Span};
+
+#[ast_node]
+pub enum MediaQuery {
+    #[tag("AndMediaQuery")]
+    And(AndMediaQuery),
+    #[tag("OrMediaQuery")]
+    Or(OrMediaQuery),
+}
+
+#[ast_node]
+pub struct AndMediaQuery {
+    pub span: Span,
+    pub queries: Vec<MediaQuery>,
+}
+
+#[ast_node]
+pub struct OrMediaQuery {
+    pub span: Span,
+    pub queries: Vec<MediaQuery>,
+}

css/parser/Cargo.toml

@@ -0,0 +1,15 @@
+[package]
+authors = ["강동윤 <kdy1997.dev@gmail.com>"]
+edition = "2018"
+name = "swc_css_parser"
+version = "0.1.0"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+logos = "0.11.4"
+matches = "0.1.8"
+serde = {version = "1", features = ["derive"]}
+swc_atoms = {path = "../../atoms"}
+swc_common = {path = "../../common"}
+swc_css_ast = {path = "../ast"}