Quiltflower 1.9.0

[jaskarth]

Quiltflower 1.9.0 brings dozens of bug fixes, new features, improved decompilation, and an improved way to interact with the Quiltflower API.
NOTE: This version require a minimum of Java 11 to run!
Some highlights include:

• Improved switch pattern matching support
• Changed default settings to improve code output by default
• Fixed the "baby shark" bug (multiple nested infinite loops in a row)
• Optimized memory, CPU, and disk usage

Please report any issues at https://github.com/QuiltMC/quiltflower/issues.
The full changelog for this version goes as follows:

Click here to expand the full changelog

• Added support for transitive and static modifiers in module info (Thanks kb1000!)
• Added improved support for switch pattern matching (Thanks Luna!)
• Added implementation version to manifest (Thanks nbauma109!)
• Added some support for constant dynamic resugaring
• Added lazy loading for classpath jars (Thanks, zml!)
• Added new option to verify variable merges
• Added new option to decompile preview features
• Added support for decompiling out of executables
• Enabled try loop fix by default
• Enabled ternary conditions by default
• Improved API for developer usability (Thanks, zml!)
• Improved marking of monitorenter and monitorexit opcodes when they aren't resugared properly
• Improved resugaring of switch expressions over enums
• Improved default values in switch expressions
• Improved tracking of assignments in try blocks
• Improved Pi value parentheses
• Improved rename entities iteration order to be sequential based on classes seen
• Improved bytecode to line mappings
• Improved the experimental try loop fix to extend to try-finally blocks
• Improved help message when running through the command line (thanks sschr!)
• Renamed $FF: tags in decompiled code to $QF:
• Rewrote ternary processing code and made it much more accurate
• Optimized code for speed and memory usage
• Optimized file reading and parsing
• Updated help message
• Fixed most cases of longstanding issue where multiple nested infinite loops would be created
• Fixed "invalid constant type" issue with variable merging
• Fixed many subtle issues with code generation due to improper internal state management
• Fixed some invalid code generation with assignments in if statements
• Fixed if pattern matching shadowing already defined variables
• Fixed do-while loops not being created when they are the last statement inside of an outer loop
• Fixed finally blocks inside of loops causing a crash
• Fixed methods and fields not getting renamed by rename entities
• Fixed bogus var10000 variables showing up in some cases
• Fixed catch blocks being removed entirely
• Fixed Object[] not being casted correctly
• Fixed CME in loop creation
• Fixed synchronized statements not decompiling correctly when the last statement is a throw
• Fixed finally blocks in loops causing improper break statements
• Fixed extra parenthesis around array accesses
• Fixed extra casts being applied in method calls when not needed
• Fixed foreach loops being created when the iteration variable is used earlier
• Fixed improper loop generation when the loop is the first block
• Fixed returns in loops when breaks make more sense, in loops where it's the first block
• Fixed finally blocks in synchronized statements causing crashes
• Fixed assignments becoming improper inside of try blocks
• Fixed some cases where booleans and ints would merge together
• Fixed more cases of int x = true;
• Fixed an infinite loop OOM combo with finally processing
• Fixed synchronized statements not decompiling correctly when in a loop
• Fixed arrays being initialized with char values instead of number literals
• Fixed some cases of switch expressions being created when they shouldn't be
• Fixed empty newlines at the end of sequence statements
• Fixed static fields showing up before enum fields
• Fixed some rare label issues with breaks out of try statements
• Fixed some extraneous generic casts on assignments
• Fixed some generic union type casts being improper
• Fixed rare concurrency issues causing crashes
• Fixed toString not removed in string concat (thanks, thewindsofwinter!)
• Fixed incorrect assignment exprent modification for assignments with a condition (Thanks Totty!)
• Fixed class cast exception when creating a foreach over array with multiple dimensions
• Fixed NullPointerException when writing some switch on string statements
• Merged from upstream: Fixed an infinite loop while decompiling obfuscated code
• Fixed NullPointerException when parsing enum method descriptors
• Fixed casts not being applied on byte->int coercion
• Fixed casts not being applied on Object parameters
• Fixed a few casts with anonymous classes

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This discussion was created from the release Quiltflower 1.9.0.