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68 Commits
Author SHA1 Message Date
ds5678 e4000c8a5c Enhance null handling in switch transformations 
- Updated `Issue3421.cs`.
- Updated `MatchLegacySwitchOnStringWithDict` to check for `leaveContainer` and handle null sections accordingly.
- Introduced an overload for `AddNullSection` to accept `ILInstruction` as the body, improving flexibility.
- Modified existing `AddNullSection` to utilize the new overload, allowing for varied body types in `SwitchSection`.
 2025-03-15 01:29:58 -07:00
ds5678 cbe8dd43d7 Fix null check in MatchLegacySwitchOnStringWithDict 
Updated the condition for `nullValueCaseBlock` to ensure it is not null and not equal to `defaultBlock`.
 2025-03-09 21:00:36 -07:00
Siegfried Pammer e1e2f739f6 Fix switch-on-string transform for optimized Roslyn. 2025-01-05 20:21:15 +01:00
Siegfried Pammer 969e3e546a Add support for switch on (ReadOnly)Span<char> using a compiler-generated hash function. 2024-03-29 21:20:58 +01:00
Siegfried Pammer 4ca9fddd6f Fix #3069: Reuse SwitchAnalysis instead of MatchIfElseOnCharBlock 2023-09-03 22:13:02 +02:00
Siegfried Pammer 70616b301c Implement support for C# 11 switch on (ReadOnly)Span<char>. 2023-08-17 00:16:41 +02:00
Siegfried Pammer 32e04eaf12 Implement Roslyn 4.6 pattern for C# switch on string: match by length and unique characters first. 2023-07-25 19:10:47 +02:00
Siegfried Pammer 35aea3eea7 Slight pattern changes in mcs 5 switch-on-string with case null. 2021-11-17 22:25:58 +01:00
Siegfried Pammer 0ed191617e Fix #2528: arbitrary stores preceding switch-on-string confuse the transform, making it pick the wrong variable as switch variable. 2021-10-29 23:11:01 +02:00
Daniel Grunwald 6951ccb1a2 Fix #2260: switch(string) transform: handle empty cases where the C# compiler optimizes out the if 
e.g.
```
	switch (<PrivateImplementationDetails>.ComputeStringHash(text2))
	{
	case 1288728352u:
		_ = text2 == "rowno";
		break;
        ...
```
 2021-01-23 16:55:51 +01:00
Siegfried Pammer 2530c9a2ce #2182: Do not inline switch value, in case variable is reused. 2020-10-07 22:38:34 +02:00
dotnet format 0d9f871a4f #2128: Reformat the whole code base. 2020-08-28 01:05:38 +02:00
Siegfried Pammer e320819103 Formatting change: while-condition loop to do-while loop. 2020-08-27 16:25:43 +02:00
Siegfried Pammer a6bbccae8d Fix #2123: switch on string detection: 
1) Do not remove switchValueVar, if it is used elsewhere.
2) Support empty case blocks in SimplifyCascadingIfStatements transform
 2020-08-27 16:11:17 +02:00
Siegfried Pammer b27f08621f Fix #2101: reset removeExtraLoad flag if keepAssignmentBefore is set; implement simple case-de-duplication: abort if there are any duplicate cases. 2020-08-17 15:03:32 +02:00
Daniel Grunwald 2acc4339df #2058: Mark most transforms as public to help users that use the ILAst directly without decompiling to C#. 2020-07-22 21:25:22 +02:00
Daniel Grunwald 15f638af9a Fix decompilation of switch where default section is a leave instruction. 2020-06-23 23:35:15 +02:00
Daniel Grunwald a6e23d1f98 Fix "case null" handling in switch(string) with current Roslyn version (3.7.0-2.final). 2020-06-23 23:29:25 +02:00
Daniel Grunwald 30da0b7525 Add some missing checks to MatchRoslynSwitchOnString 2020-06-23 23:25:11 +02:00
Daniel Grunwald 832c18f0be Fix #1809: Support VB Select on string. 2019-12-05 00:18:08 +01:00
Siegfried Pammer 9a77a80e3c Fix #1767: Fix detection switch-on-string that uses leave instead of branch instructions. 2019-10-31 12:23:21 +01:00
Siegfried Pammer 0a432e23fb Fix #1742: Special case for case string.Empty generated by mcs. 2019-10-09 23:13:40 +02:00
Siegfried Pammer cc3a0bef7e Fix #1745: Empty string is missing from switch result 2019-10-09 23:13:40 +02:00
Siegfried Pammer 05454bd741 Fix SwitchOnStringTransform.SimplifyCascadingIfStatements: do not remove statements unrelated to switch pattern. 2019-08-22 17:49:41 +02:00
Siegfried Pammer bbb40ecb32 Fix #1602: Recognize Roslyn empty string case block. 2019-08-18 18:38:55 +02:00
Siegfried Pammer 15488acdc7 Fix #1559: switch on string inside try block. 2019-07-12 20:21:58 +02:00
Siegfried Pammer f7641037a2 Fix #1526: Roslyn-optimized switch at end of method uses leave instead of br. 2019-06-08 12:00:39 +02:00
Siegfried Pammer edcf4931d0 Fix #1489: ArgumentNullException in SwitchOnStringTransform.SimplifyCascadingIfStatements 2019-04-20 15:46:26 +02:00
Siegfried Pammer 9c62f11e51 Add new switch(string) pattern for Roslyn. 2019-03-02 22:42:34 +01:00
Siegfried Pammer 80bc89f606 Fix SwitchOnStringTransform.SimplifyCascadingIfStatements to handle newer Roslyn code-gen correctly. 2019-03-02 22:42:34 +01:00
Siegfried Pammer c1fca21e8a Make ILRange field private - introduce public API for IL range manipulation. 2019-02-16 20:36:17 +01:00
Siegfried Pammer b9f179465d Fix part 1 of #1292: switch on string inside try-block not recognized. 2018-12-11 19:29:14 +01:00
Chicken-Bones e9b766d708 Improve persistence of IL offsets through various transforms. 2018-10-08 21:21:55 +10:00
Daniel Grunwald cfcb73f908 Merge branch 'PR1258' 2018-10-07 16:32:29 +02:00
Siegfried Pammer 65cf13ce27 Fix #1270: Bad decompilation of mcs switch-on-string 2018-08-26 12:00:26 +02:00
Chicken-Bones 62b2ad4f8d Improve UseCSharpSwitch to reduce over-aggressive use of switch producing poor quality code. 2018-08-14 11:19:09 +10:00
Siegfried Pammer 20ccd51948 Fix bug in SwitchOnStringTransform.SimplifyCascadingIfStatements: Do not eliminate unrelated stores right before the start of the switch. 2018-07-13 13:33:40 +02:00
Siegfried Pammer dfa99a8c1f Fix build. 2018-06-03 11:34:38 +02:00
Siegfried Pammer abbf3d0429 Fix #1158: C# 1 switch pattern improvement 2018-06-03 10:00:02 +02:00
Siegfried Pammer 9443983819 Fix #1144: MatchRoslynCaseBlockHead did not handle inverse conditions properly. 2018-05-26 09:57:06 +02:00
Siegfried Pammer 644941d25b Fix C# 1.0 switch on string transform and add tests 2018-05-11 01:10:29 +02:00
Siegfried Pammer 3eb694baee Fix #1107: bug in mcs switch on string detection. 2018-03-30 13:48:54 +02:00
Siegfried Pammer b400d89f57 Fix #1076; improve detection of mcs switch-on-string pattern 2018-03-02 21:13:18 +01:00
Siegfried Pammer 7544eac5b4 Add support for mcs 2.6.4 switch-on-string 2018-02-27 15:33:54 +01:00
Siegfried Pammer 33c5e2d3ed Add StackType.F4 and StackType.F8, and instructions LdcF4 and LdcF8. 2017-12-01 00:06:20 +01:00
Daniel Grunwald 2824906f8f Code cleanup SwitchOnStringTransform. 2017-10-13 20:07:13 +02:00
Siegfried Pammer 1ac631b3f1 SwitchOnStringTransform: fix bugs in ExtractStringValuesFromInitBlock and MatchAddCall 2017-10-13 20:04:20 +02:00
Siegfried Pammer a423e7da9c Expand checks in ExtractStringValuesFromInitBlock and MatchAddCall 2017-10-13 19:41:31 +02:00
Siegfried Pammer e6608832a4 Add documentation to SwitchOnStringTransform 2017-10-13 18:03:53 +02:00
Daniel Grunwald 9fcee831d2 Simplify SimplifyCascadingIfStatements 2017-10-13 16:09:01 +02:00