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LibJS: Let parser keep track of errors

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Rather than printing them to stderr directly the parser now keeps a
Vector<Error>, which allows the "owner" of the parser to consume them
individually after parsing.

The Error struct has a message, line number, column number and a
to_string() helper function to format this information into a meaningful
error message.

The Function() constructor will now include an error message when
throwing a SyntaxError.
This commit is contained in:
Linus Groh 2020-05-14 16:26:01 +01:00 • committed by Andreas Kling
parent 00b61a212f
commit 33defef267
Notes: sideshowbarker 2024-07-19 06:38:47 +09:00
7 changed files with 39 additions and 12 deletions
Libraries/LibWeb/DOM
HTMLScriptElement.cpp

10
Libraries/LibWeb/DOM/HTMLScriptElement.cpp
View file

@ -61,9 +61,10 @@ void HTMLScriptElement::children_changed()
auto parser = JS::Parser(JS::Lexer(source));
auto program = parser.parse_program();
if (parser.has_errors())
if (parser.has_errors()) {
parser.print_errors();
return;
}
document().interpreter().run(*program);
}
@ -96,9 +97,10 @@ void HTMLScriptElement::inserted_into(Node& new_parent)
auto parser = JS::Parser(JS::Lexer(source));
auto program = parser.parse_program();
if (parser.has_errors())
if (parser.has_errors()) {
parser.print_errors();
return;
}
document().interpreter().run(*program);
}