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parse LF & comment correctly (#2653)

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fixes #2652
This commit is contained in:
Alex Lam S.L
2017-12-26 01:38:01 +08:00
committed by GitHub
parent 8701a99a15
commit 0fe259e9c5
2 changed files with 47 additions and 9 deletions
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23
lib/parse.js
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@@ -774,10 +774,15 @@ function parse($TEXT, options) {
function expect(punc) { return expect_token("punc", punc); };
function has_newline_before(token) {
return token.nlb || !all(token.comments_before, function(comment) {
return !comment.nlb;
});
}
function can_insert_semicolon() {
return !options.strict && (
S.token.nlb || is("eof") || is("punc", "}")
);
return !options.strict
&& (is("eof") || is("punc", "}") || has_newline_before(S.token));
};
function semicolon(optional) {
@@ -817,10 +822,10 @@ function parse($TEXT, options) {
if (S.in_directives) {
var token = peek();
if (S.token.raw.indexOf("\\") == -1
&& (token.nlb
|| is_token(token, "eof")
|| is_token(token, "punc", ";")
|| is_token(token, "punc", "}"))) {
&& (is_token(token, "punc", ";")
|| is_token(token, "punc", "}")
|| has_newline_before(token)
|| is_token(token, "eof"))) {
S.input.add_directive(S.token.value);
} else {
S.in_directives = false;
@@ -927,7 +932,7 @@ function parse($TEXT, options) {
case "throw":
next();
if (S.token.nlb)
if (has_newline_before(S.token))
croak("Illegal newline after 'throw'");
var value = expression(true);
semicolon();
@@ -1503,7 +1508,7 @@ function parse($TEXT, options) {
return ex;
}
var val = expr_atom(allow_calls);
while (is("operator") && UNARY_POSTFIX(S.token.value) && !S.token.nlb) {
while (is("operator") && UNARY_POSTFIX(S.token.value) && !has_newline_before(S.token)) {
val = make_unary(AST_UnaryPostfix, S.token, val);
val.start = start;
val.end = S.token;