swc-project/swc
1
1
Fork 0
mirror of https://github.com/swc-project/swc.git synced 2024-12-23 13:51:19 +03:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

Simplify: left.rhs * right is only safe when operators are the same

Browse Source
This commit is contained in:
Erik Desjardins 2019-05-16 14:10:06 -04:00
parent b5bbbc0cd6
commit 07bf194e61
1 changed files with 8 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
ecmascript/transforms/src/simplify/expr/mod.rs
View File

@ -443,9 +443,8 @@ fn fold_bin(
op: left_op,
right: left_rhs,
}) => {
let v = perform_arithmetic_op(op, &left_rhs, &right);
match v {
Known(value) => {
if left_op == op {
if let Known(value) = perform_arithmetic_op(op, &left_rhs, &right) {
return Expr::Bin(BinExpr {
span,
left: left_lhs,
@ -453,15 +452,13 @@ fn fold_bin(
right: box Expr::Lit(Lit::Num(Number { value, span })),
});
}
_ => {
left = box Expr::Bin(BinExpr {
left: left_lhs,
op: left_op,
span: left_span,
right: left_rhs,
})
}
}
left = box Expr::Bin(BinExpr {
left: left_lhs,
op: left_op,
span: left_span,
right: left_rhs,
})
}
_ => {}
}