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shadowing and visibility of default predicates

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Philip Ginsbach
2023-02-03 10:05:16 +00:00
parent 09fdf744d4
commit e552a6206d
2 changed files with 5 additions and 2 deletions
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3
docs/codeql/ql-language-reference/name-resolution.rst
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@@ -223,7 +223,8 @@ For a module ``M``, it is useful to distinguish between its **privately declared
- The **publically declared** namespaces of ``M`` contain all entities and aliases that are declared—that is, defined—in ``M`` and that are not annotated as ``private``.
- The **exported** namespaces of ``M`` contain
1. all entries from the **publically declared** namespaces of ``M``, and
2. for each module ``N`` that is imported into ``M`` with an import statement that is not annotated as ``private``: all entries from the **exported** namespaces of ``N`` that do not have the same name as any of the entries in the **publically declared** namespaces of ``M``.
2. for each module ``N`` that is imported into ``M`` with an import statement that is not annotated as ``private``: all entries from the **exported** namespaces of ``N`` that do not have the same name as any of the entries in the **publically declared** namespaces of ``M``, and
3. for each module signature ``S`` that is implemented by ``M``: an entry for each module signature default predicate in ``S`` that does not have the same name and arity as any of the entries in the **publically declared** predicate namespace of ``M``.
- The **visible** namespaces of ``M`` contain
1. all entries from the **exported** namespaces of ``M``, and
2. all entries from the **global** namespaces, and

4
docs/codeql/ql-language-reference/ql-language-specification.rst
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@@ -144,7 +144,9 @@ These are defined as follows (with X denoting the type of entity we are currentl
1. its *publically declared X environment*, and
2. for each module which the current module directly imports (excluding ``private`` imports - see "`Import directives <#import-directives>`__"): all entries from the *exported X environment* that have a key not present in the *publically declared X environment* of the current module.
2. for each module which the current module directly imports (excluding ``private`` imports - see "`Import directives <#import-directives>`__"): all entries from the *exported X environment* that have a key not present in the *publically declared X environment* of the current module, and
3. if X is ``predicates``, then for each module signature ``S`` that is implemented by the current module: an entry for each module signature default predicate in ``S`` that does not have the same name and arity as any of the entries in the **publically declared predicate environment** of the current module.
- The *visible X environment* of a module is the union of