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Check for undeclared private names in eval-scripts after parsing #42

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Sep 4, 2017

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anba
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@anba anba commented Sep 1, 2017

Accessing runtime types like execution contexts isn't allowed during parsing,
therefore we need to defer the undeclared private names check for eval-scripts.
EvalDeclarationInstantiation seems like the obvious choice, because it already
contains checks for duplicate lexicals in non-strict eval-scripts.

I've also changed |Script : ScriptBody?| to |ScriptBody : StatementList|, and |Module : ModuleBody?| to |ModuleBody : ModuleItemList| because ScriptBody resp. ModuleBody are both optional productions, so their parse nodes may not be present.

Accessing runtime types like execution contexts isn't allowed during parsing,
therefore we need to defer the undeclared private names check for eval-scripts.
EvalDeclarationInstantiation seems like the obvious choice, because it already
contains checks for duplicate lexicals in non-strict eval-scripts.
@littledan
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This phrasing is a real improvement. Thanks!

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