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Merge pull request #1401 from jbj/tostring-performance-1.22

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C++: Move `Element.toString` performance change note to 1.22 file
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Geoffrey White
2019-06-05 10:21:01 +01:00
committed by GitHub
parent e036cd70e2 9830c69892
commit 98eced973e
2 changed files with 18 additions and 2 deletions
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3
change-notes/1.21/analysis-cpp.md
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- The taint tracking library now includes taint-specific edges for functions modeled in `semmle.code.cpp.models.interfaces.DataFlow`.
- The taint tracking library adds flow through library functions that are modeled in `semmle.code.cpp.models.interfaces.Taint`. Queries can add subclasses of `TaintFunction` to specify additional flow.
- There is a new `FoldExpr` class, representing C++17 fold expressions.
- The member predicates `DeclarationEntry.getUnspecifiedType`, `Expr.getUnspecifiedType`, and `Variable.getUnspecifiedType` have been added. These should be preferred over the existing `getUnderlyingType` predicates.
- The predicate `TypeMention.toString()` has been simplified to always return the string "`type mention`". This may improve performance when using `Element.toString()` or its descendants.
- The member predicates `DeclarationEntry.getUnspecifiedType`, `Expr.getUnspecifiedType`, and `Variable.getUnspecifiedType` have been added. These should be preferred over the existing `getUnderlyingType` predicates.

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change-notes/1.22/analysis-cpp.md Normal file
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# Improvements to C/C++ analysis
## General improvements
## New queries
| **Query** | **Tags** | **Purpose** |
|-----------------------------|-----------|--------------------------------------------------------------------|
## Changes to existing queries
| **Query** | **Expected impact** | **Change** |
|----------------------------|------------------------|------------------------------------------------------------------|
## Changes to QL libraries
- The predicate `TypeMention.toString()` has been simplified to always return the string "`type mention`". This may improve performance when using `Element.toString()` or its descendants.