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Merge pull request #1530 from Semmle/getExpr-qldoc

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C++: expand MacroInvocation.getExpr QLDoc
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Geoffrey White
2019-07-02 11:00:57 +01:00
committed by GitHub
parent 5ea69601c3 bf99a0ee15
commit 01ce34449d
1 changed files with 4 additions and 1 deletions
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5
cpp/ql/src/semmle/code/cpp/Macro.qll
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@@ -188,9 +188,12 @@ class MacroInvocation extends MacroAccess {
}
/**
* Gets the top-level expression associated with this macro invocation,
* Gets a top-level expression associated with this macro invocation,
* if any. Note that this predicate will fail if the top-level expanded
* element is not an expression (for example if it is a statement).
*
* This macro is intended to be used with macros that expand to a complete
* expression. In other cases, it may have multiple results or no results.
*/
Expr getExpr() {
result = getAnExpandedElement() and