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@@ -400,22 +400,24 @@ Works:
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- pass class property, static class property
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- pass array property
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- array of const, TVarRec
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+- attributes
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+- overflow check:
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+ -Co : Overflow checking of integer operations
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+- generics
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ToDos:
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- range check:
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type helper self:=
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-- overflow check:
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- ?
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- cmd line param to set modeswitch
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- Result:=inherited;
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- asm-block annotate/reference
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- pas() test or use or read or write
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+ - trailing [,,,]
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- bug: DoIt(typeinfo(i)) where DoIt is in another unit and has TTypeInfo
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- $OPTIMIZATION ON|OFF
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- $optimization REMOVEEMPTYPROCS
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- $optimization REMOVEEMPTYPROCS,RemoveNotUsedDeclarations-
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- setlength(dynarray) modeswitch to not create a copy
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-- 'new', 'Function' -> class var use .prototype
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- static arrays
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- clone multi dim static array
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- RTTI
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@@ -428,50 +430,22 @@ ToDos:
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- stdcall of methods: pass original 'this' as first parameter
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- property read Arr[0] https://bugs.freepascal.org/view.php?id=33416
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- write, writeln
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-- array of const
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- call array of proc element without ()
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- enums with custom values
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- library
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- constref
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- option overflow checking -Co
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+, -, *, Succ, Pred, Inc, Dec
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- -Co : Overflow checking of integer operations
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-CO : Check for possible overflow of integer operations
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-C3 : Turn on ieee error checking for constants
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- optimizations:
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- - move rtl.js functions to system.pp
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- - add $mod only if needed
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- - add Self only if needed
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- - use a number for small sets
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- - put set literals into constants
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- - shortcut for test set is empty a=[] a<>[]
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- - set operators on literals without temporary arrays, a in [b], [a]*b<>[]
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- - combine multiple var a=0,b=0
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- - init a local var with the first assignment
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- - skip clone array for new array and arraysetlength
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- - SetLength(scope.a,l) -> read scope only once, same for
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- Include, Exclude, Inc, Dec, +=, -=, *=, /=
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- - inline -Si
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- - autoinline
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- -O1 insert unit vars for complex literals
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- -O1 no function Result var when assigned only once
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- -O1 replace constant expression with result
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- -O1 pass array element by ref: when index is constant, use that directly
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- -O1 case-of with 6+ elements as binary tree
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- -O2 insert local/unit vars for global type references:
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- at start of intf var $r1=null;
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- at end of impl: $r1=path;
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- -O2 removeemptyprocs
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- -O2 skip dead code If(false){...}
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- -O2 CSE
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- -O3 DFA
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+ see https://wiki.lazarus.freepascal.org/Pas2js_optimizations
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- objects
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- generics
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- operator overloading
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- operator enumerator
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- inline
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- extended RTTI
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-- attributes
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Debugging this unit: -d<x>
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VerbosePas2JS
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Mattias Gaertner