swc_ecma_compat_es2015/classes/
prop_name.rs

1use swc_atoms::Wtf8Atom;
2use swc_common::{Span, Spanned};
3use swc_ecma_ast::*;
4
5#[derive(Debug, PartialEq, Eq, Hash)]
6pub enum HashKey {
7    Str(Wtf8Atom),
8    /// Not for key merging
9    Computed(Span),
10}
11
12impl From<&PropName> for HashKey {
13    fn from(p: &PropName) -> Self {
14        match p {
15            PropName::Ident(IdentName { sym: value, .. }) => HashKey::Str(value.clone().into()),
16            PropName::Str(Str { value, .. }) => HashKey::Str(value.clone()),
17            PropName::Num(Number { value, .. }) => HashKey::Str(value.to_string().into()),
18            PropName::BigInt(BigInt { value, .. }) => HashKey::Str(value.to_string().into()),
19            PropName::Computed(expr) => HashKey::Computed(expr.span()),
20            #[cfg(swc_ast_unknown)]
21            _ => panic!("unable to access unknown nodes"),
22        }
23    }
24}
25
26pub fn is_pure_prop_name(p: &PropName) -> bool {
27    match p {
28        PropName::Ident(..) => true,
29        PropName::Str(..) => true,
30        PropName::Num(..) => true,
31        PropName::BigInt(..) => true,
32        PropName::Computed(ComputedPropName { expr, .. }) => match &**expr {
33            Expr::This(..) => true,
34            Expr::Lit(..) => true,
35            Expr::Ident(..) => true,
36            Expr::PrivateName(..) => true,
37            Expr::Tpl(tpl) => tpl.exprs.is_empty(),
38            _ => false,
39        },
40        #[cfg(swc_ast_unknown)]
41        _ => false,
42    }
43}
44
45pub fn should_extract_class_prop_key(methods: &[ClassMethod]) -> bool {
46    let mut has_static = false;
47
48    for m in methods {
49        if is_pure_prop_name(&m.key) {
50            continue;
51        }
52
53        if m.is_static {
54            has_static = true
55        } else if has_static {
56            return true;
57        }
58    }
59
60    false
61}
swc_ecma_compat_es2015/classes/prop_name.rs

swc_ecma_compat_es2015/classes/
prop_name.rs
