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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
use super::*;
use heck::{ToShoutySnakeCase, ToUpperCamelCase};
pub fn pass(root: &mut Root) -> Result<()> {
root.visit_mut(|node: &mut LiteralNode| node.js_lit = js_lit(&node.lit));
Ok(())
}
fn js_lit(lit: &Literal) -> String {
match lit {
Literal::Boolean(inner) => inner.to_string(),
Literal::String(inner) => format!("\"{}\"", inner),
Literal::UInt(num, radix, _) => number_lit(radix, num).to_string(),
Literal::Int(num, radix, _) => number_lit(radix, num).to_string(),
Literal::Float(num, _) => num.clone(),
Literal::Enum(name, typ) => enum_lit(&typ.ty, name),
Literal::EmptyMap => "{}".to_string(),
Literal::EmptySequence => "[]".to_string(),
Literal::Some { inner } => js_lit(inner),
Literal::None => "null".to_string(),
}
}
fn number_lit(
radix: &Radix,
num: impl std::fmt::Display + std::fmt::LowerHex + std::fmt::Octal,
) -> String {
match radix {
Radix::Decimal => format!("{}", num),
Radix::Hexadecimal => format!("{:#x}", num),
Radix::Octal => format!("{:#o}", num),
}
}
fn enum_lit(typ: &Type, variant_name: &str) -> String {
if let Type::Enum { name, .. } = typ {
format!(
"{}.{}",
name.to_upper_camel_case(),
variant_name.to_shouty_snake_case()
)
} else {
panic!("Rendering an enum literal on a type that is not an enum")
}
}