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fix corner case in parsing directives (#3615)

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This commit is contained in:
Alex Lam S.L
2019-11-29 18:57:29 +08:00
committed by GitHub
parent 1b61a81b5d
commit 1283d73853
5 changed files with 123 additions and 71 deletions
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26
lib/parse.js
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@@ -787,20 +787,18 @@ function parse($TEXT, options) {
handle_regexp();
switch (S.token.type) {
case "string":
if (S.in_directives) {
var token = peek();
if (S.token.raw.indexOf("\\") == -1
&& (is_token(token, "punc", ";")
|| is_token(token, "punc", "}")
|| has_newline_before(token)
|| is_token(token, "eof"))) {
S.input.add_directive(S.token.value);
var dir = S.in_directives;
var body = expression(true);
if (dir) {
var token = body.start;
if (body instanceof AST_String && token.raw.indexOf("\\") == -1) {
S.input.add_directive(token.value);
} else {
S.in_directives = false;
S.in_directives = dir = false;
}
}
var dir = S.in_directives, stat = simple_statement();
return dir ? new AST_Directive(stat.body) : stat;
semicolon();
return dir ? new AST_Directive(body) : new AST_SimpleStatement({ body: body });
case "num":
case "regexp":
case "operator":
@@ -965,8 +963,10 @@ function parse($TEXT, options) {
return new AST_LabeledStatement({ body: stat, label: label });
}
function simple_statement(tmp) {
return new AST_SimpleStatement({ body: (tmp = expression(true), semicolon(), tmp) });
function simple_statement() {
var body = expression(true);
semicolon();
return new AST_SimpleStatement({ body: body });
}
function break_cont(type) {