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LibJS: Allow multiple labels on the same statement

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Since there are only a number of statements where labels can actually be
used we now also only store labels when necessary.
Also now tracks the first continue usage of a label since this might not
be valid but that can only be determined after we have parsed the
statement.
Also ensures the correct error does not get wiped by load_state.
This commit is contained in:
davidot 2021-09-18 23:01:54 +02:00 • committed by Linus Groh
parent bfc1b4ba61
commit 79caca8ca2
7 changed files with 194 additions and 47 deletions
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Userland/Libraries/LibJS/Parser.h
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@ -259,7 +259,7 @@ private:
Vector<Vector<FunctionNode::Parameter>&> function_parameters;
HashMap<StringView, bool> labels_in_scope;
HashMap<StringView, Optional<Position>> labels_in_scope;
bool strict_mode { false };
bool allow_super_property_lookup { false };
bool allow_super_constructor_call { false };