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fix corner cases with instanceof (#5509)

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- enhance `evaluate`
This commit is contained in:
Alex Lam S.L
2022-06-12 03:01:54 +01:00
committed by GitHub
parent 99946a3993
commit 139fad0c05
10 changed files with 167 additions and 25 deletions
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28
lib/output.js
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@@ -260,6 +260,15 @@ function OutputStream(options) {
var require_semicolon = makePredicate("( [ + * / - , .");
function require_space(prev, ch, str) {
return is_identifier_char(prev) && (is_identifier_char(ch) || ch == "\\")
|| (ch == "/" && ch == prev)
|| ((ch == "+" || ch == "-") && ch == last)
|| last == "--" && ch == ">"
|| last == "!" && str == "--"
|| prev == "/" && (str == "in" || str == "instanceof");
}
var print = options.beautify
|| options.comments
|| options.max_line_len
@@ -312,12 +321,7 @@ function OutputStream(options) {
}
if (might_need_space) {
if (is_identifier_char(prev) && (is_identifier_char(ch) || ch == "\\")
|| (ch == "/" && ch == prev)
|| ((ch == "+" || ch == "-") && ch == last)
|| str == "--" && last == "!"
|| str == "in" && prev == "/"
|| last == "--" && ch == ">") {
if (require_space(prev, ch, str)) {
output += " ";
current_col++;
}
@@ -355,14 +359,7 @@ function OutputStream(options) {
}
}
if (might_need_space) {
if (is_identifier_char(prev) && (is_identifier_char(ch) || ch == "\\")
|| (ch == "/" && ch == prev)
|| ((ch == "+" || ch == "-") && ch == last)
|| str == "--" && last == "!"
|| str == "in" && prev == "/"
|| last == "--" && ch == ">") {
output += " ";
}
if (require_space(prev, ch, str)) output += " ";
if (prev != "<" || str != "!") might_need_space = false;
}
output += str;
@@ -1819,9 +1816,6 @@ function OutputStream(options) {
case "\u2029": return "\\u2029";
}
}));
var p = output.parent();
if (p instanceof AST_Binary && /^in/.test(p.operator) && p.left === this)
output.print(" ");
});
function force_statement(stat, output) {