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Minor updates to prepare for publication

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Felicity Chapman
2018-09-11 08:27:20 +01:00
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change-notes/1.18/analysis-csharp.md
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@@ -15,18 +15,18 @@
| **Query** | **Expected impact** | **Change** |
|----------------------------|------------------------|------------------------------------------------------------------|
| [Constant condition](https://help.semmle.com/wiki/display/CSHARP/Constant+condition) (`cs/constant-condition`) | More results | The query has been generalized to cover both Null-coalescing left operand is constant (`cs/constant-null-coalescing`) and Switch selector is constant (`cs/constant-switch-selector`). |
| Constant condition (`cs/constant-condition`) | More results | The query has been generalized to report alerts for the old queries Null-coalescing left operand is constant (`cs/constant-null-coalescing`) and Switch selector is constant (`cs/constant-switch-selector`). |
| Exposing internal representation (`cs/expose-implementation`) | Different results | The query has been rewritten, based on the [equivalent Java query](https://help.semmle.com/wiki/display/JAVA/Exposing+internal+representation). |
| Local variable shadows class member(`cs/local-shadows-class-member`) | No results | The query has been replaced by Local scope variable shadows member (`cs/local-shadows-member`). |
| Local variable shadows struct member (`cs/local-shadows-struct-member`) | No results | The query has been replaced by Local scope variable shadows member (`cs/local-shadows-member`). |
| [Missing Dispose call on local IDisposable](https://help.semmle.com/wiki/display/CSHARP/Missing+Dispose+call+on+local+IDisposable) (`cs/local-not-disposed`) | Fewer results | The query identifies more cases where the local variable may be disposed by a library call. |
| [Nested loops with same variable](https://help.semmle.com/wiki/display/CSHARP/Nested+loops+with+same+variable) (`cs/nested-loops-with-same-variable`) | Fewer results | Results are no longer highlighted in nested loops that share the same condition, and do not use the variable after the inner loop. |
| Null-coalescing left operand is constant (`cs/constant-null-coalescing`) | No results | The query has been removed, as it is now covered by Constant condition (`cs/constant-condition`). |
| Parameter shadows class member (`cs/parameter-shadows-class-member`) | No results | The query has been replaced by Local scope variable shadows member (`cs/local-shadows-member`). |
| Parameter shadows struct member (`cs/parameter-shadows-struct-member`) | No results | The query has been replaced by Local scope variable shadows member (`cs/local-shadows-member`). |
| [Potentially incorrect CompareTo(...) signature](https://help.semmle.com/wiki/display/CSHARP/Potentially+incorrect+CompareTo%28...%29+signature) (`cs/wrong-compareto-signature`) | Fewer results | Results are no longer highlighted in constructed types. |
| Switch selector is constant (`cs/constant-switch-selector`) | No results | The query has been removed, as it is now covered by Constant condition (`cs/constant-condition`). |
| [Useless upcast](https://help.semmle.com/wiki/display/CSHARP/Useless+upcast) (`cs/useless-upcast`) | Fewer results | The query has been improved to cover more cases where upcasts may be needed. |
| Local variable shadows class member (`cs/local-shadows-class-member`) | No results | The query has been replaced by the new query: Local scope variable shadows member (`cs/local-shadows-member`). |
| Local variable shadows struct member (`cs/local-shadows-struct-member`) | No results | The query has been replaced by the new query: Local scope variable shadows member (`cs/local-shadows-member`). |
| Missing Dispose call on local IDisposable (`cs/local-not-disposed`) | Fewer false positive results | The query identifies more cases where the local variable may be disposed by a library call. |
| Nested loops with same variable (`cs/nested-loops-with-same-variable`) | Fewer false positive results | Results are no longer highlighted in nested loops that share the same condition, and do not use the variable after the inner loop. |
| Null-coalescing left operand is constant (`cs/constant-null-coalescing`) | No results | The query has been removed, as alerts for this problem are now reported by the new query: Constant condition (`cs/constant-condition`). |
| Parameter shadows class member (`cs/parameter-shadows-class-member`) | No results | The query has been replaced by the new query: Local scope variable shadows member (`cs/local-shadows-member`). |
| Parameter shadows struct member (`cs/parameter-shadows-struct-member`) | No results | The query has been replaced by the new query: Local scope variable shadows member (`cs/local-shadows-member`). |
| Potentially incorrect CompareTo(...) signature (`cs/wrong-compareto-signature`) | Fewer false positive results | Results are no longer highlighted in constructed types. |
| Switch selector is constant (`cs/constant-switch-selector`) | No results | The query has been removed, as alerts for this problem are now reported by the new query: Constant condition (`cs/constant-condition`). |
| Useless upcast (`cs/useless-upcast`) | Fewer false positive results | The query has been improved to cover more cases where upcasts may be needed. |
## Changes to code extraction
@@ -36,8 +36,9 @@
## Changes to QL libraries
* A new non-member predicate `mayBeDisposed()` can be used to determine if a variable is potentially disposed inside a library. It will analyse the CIL code in the library to determine this.
* Several control flow graph entities have been renamed (the old names still exist for backwards compatibility):
* A new non-member predicate `mayBeDisposed()` can be used to determine if a variable is potentially disposed inside a library. It will analyze the CIL code in the library to determine this.
* The predicate `getCondition()` has been moved from `TypeCase` to `CaseStmt`. It is now possible to get the condition of a `ConstCase` using its `getCondition()` predicate.
* Several control flow graph entities have been renamed (the old names are deprecated but are still available in this release for backwards compatibility):
- `ControlFlowNode` has been renamed to `ControlFlow::Node`.
- `CallableEntryNode` has been renamed to `ControlFlow::Nodes::EntryNode`.
- `CallableExitNode` has been renamed to `ControlFlow::Nodes::ExitNode`.
@@ -55,4 +56,5 @@
- `ControlFlowEdgeGotoCase` has been renamed to `ControlFlow::SuccessorTypes::GotoCaseSuccessor`.
- `ControlFlowEdgeGotoDefault` has been renamed to `ControlFlow::SuccessorTypes::GotoDefaultSuccessor`.
- `ControlFlowEdgeException` has been renamed to `ControlFlow::SuccessorTypes::ExceptionSuccessor`.
* The predicate `getCondition()` has been moved from `TypeCase` to `CaseStmt`. It is now possible to get the condition of a `ConstCase` using its `getCondition()` predicate.
> You should update any custom queries that use these entities to ensure that they continue working when the old names are removed in a future release.