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use crate::jsx::JSXText;
use std::fmt::{self, Display, Formatter};
use swc_atoms::JsWord;
use swc_common::{ast_node, Span};
#[ast_node]
pub enum Lit {
Str(Str),
Bool(Bool),
Null(Null),
Num(Number),
Regex(Regex),
JSXText(JSXText),
}
#[ast_node("StringLiteral")]
pub struct Str {
#[serde(default)]
pub span: Span,
pub value: JsWord,
#[serde(default)]
pub has_escape: bool,
}
impl Str {
#[inline]
pub fn is_empty(&self) -> bool {
self.value.is_empty()
}
}
#[ast_node("BooleanLiteral")]
#[derive(Copy)]
pub struct Bool {
#[serde(default)]
pub span: Span,
pub value: bool,
}
#[ast_node("NullLiteral")]
#[derive(Copy)]
pub struct Null {
#[serde(default)]
pub span: Span,
}
#[ast_node("RegExpLiteral")]
pub struct Regex {
#[serde(default)]
pub span: Span,
#[serde(rename = "pattern")]
pub exp: Str,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub flags: Option<RegexFlags>,
}
pub type RegexFlags = Str;
#[ast_node("NumericLiteral")]
#[derive(Copy)]
pub struct Number {
#[serde(default)]
pub span: Span,
pub value: f64,
}
impl Display for Number {
fn fmt(&self, f: &mut Formatter) -> fmt::Result {
if self.value.is_infinite() {
if self.value.is_sign_positive() {
Display::fmt("Infinity", f)
} else {
Display::fmt("-Infinity", f)
}
} else {
Display::fmt(&self.value, f)
}
}
}