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workaround V8 RegExp bug (#3453)

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fixes #3434
This commit is contained in:
Alex Lam S.L
2019-10-06 11:49:39 +08:00
committed by GitHub
parent 931ac66638
commit 0a63f2f2b0
2 changed files with 159 additions and 5 deletions
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27
lib/output.js
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@@ -136,8 +136,7 @@ function OutputStream(options) {
function make_string(str, quote) {
var dq = 0, sq = 0;
str = str.replace(/[\\\b\f\n\r\v\t\x22\x27\u2028\u2029\0\ufeff]/g,
function(s, i) {
str = str.replace(/[\\\b\f\n\r\v\t\x22\x27\u2028\u2029\0\ufeff]/g, function(s, i) {
switch (s) {
case '"': ++dq; return '"';
case "'": ++sq; return "'";
@@ -599,7 +598,6 @@ function OutputStream(options) {
}
print(encoded);
},
encode_string : encode_string,
next_indent : next_indent,
with_indent : with_indent,
with_block : with_block,
@@ -1383,8 +1381,27 @@ function OutputStream(options) {
if (regexp.raw_source) {
str = "/" + regexp.raw_source + str.slice(str.lastIndexOf("/"));
}
str = output.to_utf8(str);
output.print(str);
output.print(output.to_utf8(str).replace(/\\(?:\0(?![0-9])|[^\0])/g, function(seq) {
switch (seq[1]) {
case "\n": return "\\n";
case "\r": return "\\r";
case "\t": return "\t";
case "\b": return "\b";
case "\f": return "\f";
case "\0": return "\0";
case "\x0B": return "\v";
case "\u2028": return "\\u2028";
case "\u2029": return "\\u2029";
default: return seq;
}
}).replace(/[\n\r\u2028\u2029]/g, function(c) {
switch (c) {
case "\n": return "\\n";
case "\r": return "\\r";
case "\u2028": return "\\u2028";
case "\u2029": return "\\u2029";
}
}));
var p = output.parent();
if (p instanceof AST_Binary && /^in/.test(p.operator) && p.left === self)
output.print(" ");