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Fixed precedence multiply and power: 100 * 9 ** 0.5 results in 100 * (9 ** 0.5)
Fixed Delphi style multiline string literals containing apostrophs.

3.0.1

27th Feb 2024

Changes:

New download server for the precompiled binaries: https://getpas2js.freepascal.org
Namespaces (unitnames with dotted prefixes):
- added compiler option -FN<X>: add <x> to namespaces. Namespaces with trailing - are removed. Delphi calls this flag "unit scope names".
- The packages were extended to support namespaced version of units, e.g. units in packages/rtl are now in packages/rtl/src and the namespaced versions are in packages/rtl/namespaced
- This requires updating the -Fu paths in your pas2js.cfg, see pas2js.cfg Example
Removed submodule "compiler" and instead support "compiler" as copy, symlink or FPCDIR environment variable. See Fetching pas2js source via git and compile
Many external JS classes updated and extended
FPC Wasm code can access the DOM and JS APIs through pas2js code: WebAssembly/DOM
fixed marking library export function result sub elements as used
fixed parsing var section after class var section
fixed names of properties MultilineStringsTrimLeft and MultilineStringsEOLStyle
fixed multilinestrings:
- combos like `abc`#10
- double backticks become, same as double apostrophs become one in string literals
- apostroph
fixed anonymous procedure type
fixed anonymous record type
fixed searching TJSPromise in global scopes, while context is a dot scope
fixed typecast array literal to TJSArray
added releasecreator, tool written in fpc to compile the compiler and tools
Support for datamodules in resources
Tool to import typescript declaration modules as external classes
Split Web unit into units usable in service workers and main browser window.
Many updates on the widgets, support for bulma-styled widgets
JSONRPC client support and tool to generate import based on ExtJS-styled API.
Add Debugcapture to send logging to server
Add testinsight client.

3.0.1 Incompatibilities

Unitpaths of default packages in pas2js.cfg

The default packages source paths have changed namespaced versions were added.
Remedy: Update the -Fu paths in your pas2js.cfg, see pas2js.cfg Example

Version 2.2.0

22th Feb 2022

All changes of version 2.2.0

moved from svn to gitlab
New command line option: -Ja<x>: Append JS file <x> to main JS file. E.g. -Jamap.js. Can be given multiple times. To remove a file name append a minus, e.g. -Jamap.js-.
Added RTTI TProcedureFlag pfSafeCall and pfAsync
pas2js now creates unique method pointers (@SomeMethod), e.g. the following code will now remove the @OnLoad:

 xhr.addEventListener('load', @OnLoad);
 xhr.removeEventListener('load', @OnLoad);

Pascal Library
- export for global functions and static methods
- export for global variables
{$linklib} directive, see pas2js modules
new -T platform module
new -T platform electron
mark record fields as used when passing record to a jsvalue parameter
$mode Delphi support for generic overloads, e.g. TBird, TBird<T>, TBird<S,T>. Can be used from a unit with mode ObjFPC too, although cannot yet be declared there.
fixed delay init specializations after loading impl sections
fixed specialize try except on, issue 38795
fixed float / 0.0 results at compiletime in infinity instead of div by zero, issue 38815
fixed low/high(aString)
fixed typecast jsvalue to external class instance not object checking by default, only when object checks are enabled. For example TJSString(aJSValue).length.
fixed emulate compile time assign integer constant of different type
fixed typeinfo Module, Attributes, ResultType and Params now have default value nil, not undefined.
fixed cloning multi dim static array on assign
fixed stack overflow on deep nested binary expressions
fixed releasing com interface fields on destroy
fixed class property getter for array property of static method
fixed find generic proc overload without params, issue 38796
fixed calling constructor of nested external class, issue 38858
fixed await() as aclass, issue 39028
fixed consistent error message on custom js file not found, issue 38978
fixed writing sourceMappingURL only if map file enabled, issue 39210
fixed Setlength(unicodestring) issue 39208
fixed call type helper on type helper read from pcu

2.2.0 Incompatibilities

pas2js.cfg

The binary packages' file pas2js.cfg now enables -Jc (concatenate all js) by default. You can disable this with -Jc-.

Version 2.0.6

15th Apr 2021

fixed insert(item,array,pos) when array=nil
fixed published field with anonymous array
fixed -O- and record const, issue 38683
fixed multi add a + ImplicitFuncCall + b
(generics) Add comparer version of TDictionary create.
(generics) Fix wrong comparison of objects, adjusted patch by Henrique Werlang (Issue 38748)
(db) Patch from Henrique Werlang to implement TDatasetField
(rtti) Patch from Henrique Werlang to implement getting method parameters info
(db) Fix in TDataSet.DefaultBytesToBlobData, index out of range
(sysutils) TStringBuilder implementation
(arrayutils) Start of array utils
(web) Clipboard support (bug ID 0038726)
(sysutils) Use TBoolStrs for Boolean.ToString helper
(jsondataset) Publish OnRecordResolved, OnLoadFail
(db) Implement TBlobField.DisplayValue
(classes) Add ExtractStrings
(classes) StringStream.ReadString/WritString. Fix TMemoryStream.LoadFromStream.
(classes) Correctly handle CR/LF in GetNextLineBreak in TStrings.
demos: Fix demo to work again with latest webwidget
demos: Fixed demorouter example
(packages) new flatpickr lib
(sysutils) provide suitable defaults for Long- and ShortTimeFormat
(web) Patch from Henrique Werlang to implement TJSCSSStyleDeclaration
(web) Patch from Henrique Werlang to implement TJSElement.Remove
(classes) correctly stream TStrings based properties
(db) Patch from Henrique Werlang to let TDatalink transmit events ony when active
(sysutils) Introduce FormatSettings

Version 2.0.4

26th Mar 2021

fixed wrong setting rtl.TObjectDestroy
fixed no hint when published method hides ancestor method
fixed compileserver option --simpleserver= and -d relative path
fixed stack overflow on long string concatenations
fixed filer restore global shortrefs

Version 2.0.2

9th Mar 2021

fixed freeing temporary class interface, if it is nil.
removed obsolete TTypeInfoDynArray.DimCount
fixed TTypeInfoStaticArray.Dims
fixed obj as COMIntfType, when obj is nil': for FPC and Delphi compatibility nil returns nil and does not raise an exception.
fixed checking statement after except-on
fixed if then asm a;b end
fixed ord(integer)
fixed Include(SetOfIntegerRange, integer)
fixed omitting hint for not used property
fixed var a: (b,c);
fixed calling Instance.StaticMethod not using Instance
fixed fixed creating enum shortrefs for precompiled code for optimization EnumValues

Version 2.0.0

11th Jan 2021

All changes of version 2.0.0

fixed TDictionary with procedural type
fixed TTypeInfoRecord.RecordType

Version 2.0.0RC8

31th Dec 2020

fixed UTF-16 char literal #128..#255
fixed using invalid UTF-16 but valid string #$DC00'b'
fixed checking class method modifiers match class interface (as in IUnknown)
fixed typecast specialized array to specialized type
fixed implicit call of specialized method
added separate hints 4501 field "x" not used and 4502 field "x" assigned but never used. Delphi/FPC do not have these hints, as they treat records as one memory block and can't omit fields. pas2js can omit fields.
The param in await(param) must now be an async function, to avoid accidentally calling the wrong function or not a function at all.
Allowing await(T,jsvalue), because jsvalue could be a promise.
fixed typecast implicit function call passing to arg, e.g. aFunc(aType(obj.bFunc))
fixed delayed init specialized class interface

Version 2.0.0RC7

13th Dec 2020

fixed optimization shortrefglobals and enum value
fixed filer storing unix line ending and writing precompiled code with platform line ending
fixed unit without implementatiom
fixed record member type

Version 2.0.0RC6

8th Dec 2020

the binary snapshot now use same directories as "make all". E.g. bin\i386-win32 for the Windows 32bit executables.
the binary snapshot now contains the makestub utility
fixed filer, call type helper of unit, which unit implementation has not been parsed.
fixed catching load file exceptions and turn into regular errors
fixed generating typeinfo for classes with published members, but not referenced via typeinfo

Version 2.0.0RC5

4th Dec 2020

fixed skipping non fully specialized types
fixed filer, storing reference to await and debugger
fixed filer, specialize signature of implementation of methods
fixed filer, skipping generic reference to generic type
fixed filer, reading inline specialize expression
fixed filer, checking signatures needing indirect units of implementation

Version 2.0.0RC4

30th Nov 2020

fixed await on as operator
fixed await(ProcArgument)
fixed hint Await needs a promise
fixed calling async function with result type COM interface
fixed checking 'await(T,callasyncfunc) type match
fixed async procedure modifier not needed in implementation of a procedure
added FormData js keyword
fixed shortrefglobals optimization of new/free instance fields
fixed crash on parser error in inline specialize expression, issue 38111
fixed typeinfo path of inline specialize type
fixed -OoShortRefGlobals
fixed error when using generic type without parameters
fixed shortrefglobals when unit initialization uses unit of otherwise empty implementation section

Version 2.0.0RC3

13th Nov 2020

fixed typeinfo unicodestring and widechar
fixed passing widechar to var argument char and unicodestring to string and vice versus.
rtl: system.pas: removed obsolete UnicodeString=string and WideChar=char type alias. They are normal compiler types.
fixed typecast integer to widechar
fixed ord(widechar)
added overload TryStrToInt64 with int64, TryStrToQWord with QWord, TryStrToUInt64 with UInt64

Version 2.0.0RC2

11th Nov 2020

fixed shortrefglobals for minimal class interface, issue 38042
fixed disable optimization using fpc syntax e.g. -OoNoShortRefGlobals, issue 3804
fixed shortrefglobals for procedure without args, issue 38043
-JRnone now skips resource directives

Version 2.0.0RC1

5th Nov 2020

All changes of version 2.0.0

the binary snapshots now use same directories as "make all". E.g. bin\i386-win32 for the Windows 32bit executables.
Generics
Attributes:
- Incompatibility: $modeswitch ignoreattributes was removed
- base class System.TCustomAttribute
- $modeswitch prefixedattributes: enabled by default in $mode Delphi
- declare in front of any type, type member
- the Delphi compiler attributes like ref, weak, volatile, etc are not supported.
- query attributes of a type:
  - use either typinfo function GetRTTIAttributes(typeinfo(SomeType).Attributes):
  - or use RTTI unit r:=TRTTIContext, r.GetType(typeinfo(SomeType)).GetAttributes
class constructors:
- for classes, records, class helpers, record helpers and type helpers.
- Called in initialization section
- Optimizer removes attributes if type is not used.
VarArg.Free, e.g. procedure DoIt(var Arg: TObject); begin Arg.Free end; setting Arg to nil
range checking for type helpers
range checking for var/out arguments
fixed low/high(nativeint) for 53 significand bits instead of only 52 explicit bits, increasing high to $1fffffffffffff = 9007199254740991
float literal: removing unneeded 0 in front of E e.g. 1.20E1 as 1.2E1
Overflow checks for integers -Co {$overflowchecks on} {$Q+} for integer operators +, -, *. Checks if result is outside nativeint and raises EIntOverflow.
class abstract modifier
type helper for classtype, same as FPC
type helper for interfacetype, no constructors, same as FPC
Dispatch messages:
- method modifier message integer and message string
- directive {$DispatchField fieldname} and {$DispatchStrField fieldname}

Insert these directives in front of your dispatch methods to let the compiler check all methods with message modifiers if they pass a record with the right field.

  TMyComponent = class
    {$DispatchField Msg}
    procedure Dispatch(var aMessage); virtual;
    {$DispatchStrField MsgStr}
    procedure DispatchStr(var aMessage); virtual;
  end;
  TMouseDownMsg = record
    Id: integer; // Id instead of Msg, works in FPC, but not in pas2js
    x,y: integer;
  end;
  TMouseUpMsg = record
    MsgStr: string;
    X,Y: integer;
  end;
  TWinControl = class
    procedure MouseDownMsg(var Msg: TMouseDownMsg); message 3; // warning: Dispatch requires record field Msg
    procedure MouseUpMsg(var Msg: TMouseUpMsg); message 'up'; // ok, record with string field name MsgStr
  end;

added rtti utility functions GetInterfaceProp, SetInterfaceProp, GetMethodProp, SetMethodProp
TStream with TBytes
- TBytesStream
convert ord(const) to a const
Resource strings:
- Resource strings can now be written to file. This is controlled by the -Jr option, see the main wiki page for pas2js.
TJSFunction(@obj.methodname) is now converted to classtype.methodname
Constructors of external classes are now supported in four ways:
- constructor New is translated to new ExtClass(params). Note the missing JS path.
- constructor New; external name 'GlobalFunc' is translated to new GlobalFunc(). Note the missing JS path.
- constructor SomeName; external name '{}' is translated to {} - a basic, empty JS object
- Otherwise it is translated to new ExtClass.FuncName(params)
You can now specify a type for the procedure modifier varargs: varargs of SomeType . For example

  procedure SumWords(); varargs of Word;
  ...
  SumWords(1,2,3); // this works
  SumWords(1,98765); // this gives a range check error

Srcmap for pju files
allowing using a unit twice, with different names, e.g. uses ns.unit1, unit1; or uses foo in 'unit1.pas', unit1;
option -Sj to allow/disallow typed const to be writable
option -im to show available modeswitches
option -M<modeswitch> to enable or disable a modeswitch, see option -im
typecasting unrelated classes now gives only a warning "Class types are not related" instead of an error, Reason: FPC/Delphi compatibility
mode ObjFPC now checks procedural types in procedure arguments by signature, reason: FPC compatibility. Note: FPC does that too in $mode delphi, pas2js only in mode ObjFPC.
type helper for bytebool, wordbool, longbool
ArrayOfChar:=String and pass string to ArrayOfChar
safecall calling convention and rtl catch uncaught exceptions.
Async procedure modifier and await functions:
- function await(AsyncFunctionOfResultT): T; // implicit promise
- function await(aType; p: TJSPromise): aType; // explicit promise requires the resolved type
- function await(aType; v: jsvalue): aType; // explicit optional promise requires the resolved type
Descending a Pascal class from a JS Function
The makestub utility converts a Pascal import unit for importing Pascal classes to a unit that is compilable by Delphi
fcl-json JSON interface from FPC.
New units for Javascript libraries:
- libjitsimeet interface to jitsi video conferencing.
- libopentok interface to opentok video conferencing.
- libkurento interface to kurento video conferencing.
- libfullcalendar(4/5) interface to fullcalendar.io JS library
- libdatatables interface to datatables.net JS library
- pushjs interface to browser Push Notifications
- libbootstrap interface to bootstrap classes.
- gmaps interface to google maps interface.
added separate hints 4501 field "x" not used and 4502 field "x" assigned but never used. Delphi/FPC do not have these hints, as they treat records as one memory block and can't omit fields. pas2js can omit fields.
Optimizations:
- -O2 : Level 2 optimizations (Level 1 + not debugger friendly)
- -OoShortRefGlobals[-]: Insert a JS local var for each module, type and static function. Default enabled in -O2.

2.0.0 Incompatibilities

Signature for event handlers TEventListenerEvent and TJSEvent

The signature for event handlers has been corrected. The class TEventListenerEvent is now an alias for TJSEvent

That means that the 2 event handler types

 TJSEventHandler = reference to function(Event: TEventListenerEvent): boolean;
 TJSRawEventHandler = reference to Procedure(Event: TJSEvent);

are now equivalent.

TJSEvent type definition

The TJSEvent type definition has been corrected

The currentTarget and Target properties of TJSEvent are now of type TJSEventTarget, as they are in the official specs:

  property currentTarget : TJSEventTarget Read FCurrentTarget;
  property target : TJSEventTarget Read FTarget;

For convenience, a targetElement and CurrentTargetElement property have been added which are of type TJSElement:

   property currentTargetElement : TJSElement;
   property targetElement : TJSElement;

modeswitch ignoreattributes was removed

The workaround {$modeswitch ignoreattributes} was removed. Attributes are now implemented.

Version 1.4.34

28th Oct 2020

fixed passing in mode delphi a proc address to a proc type argument.
fixed searching pju file, when uses-in-file missing
fixed a div b for negative results
fixed aCurrency/bCurrency for negative results

Version 1.4.32

15th Oct 2020

fixed crash on class function
fixed array shrink using SetLength
fixed try except on ExternalClass do ; end;
fixed dynamic array function a:=concat(b); // marking b as referenced
fixed dynamic array function c:=concat(a,b);
fixed $ancestor of all root classes is null instead of undefined
fixed rtl.spaceLeft return value

Version 1.4.30

8th July 2020

fixed assign record with field of dynamic array
fixed SysUtils.AnsiSameText comparing strings with umlauts.

Version 1.4.28

3rd Jul 2020

fixed system.inc()
fixed namespace search order
- Reason: Delphi/FPC compatibility.
- Old behaviour: search default namespace (aka prepend program namespace), prepend command line namespaces, no namespace (i.e. as written in uses section)
- New behaviour: search no namespace (i.e. as written in uses section), prepend command line namespaces, prepend default namespace (aka program namespace)
- For example program that uses "classes" and units classes.pas and system.classes.pas are in unit search path.
fixed try exit(value) finally read Result end

Version 1.4.26

6th Jun 2020

fixed RTTI of record/class field with shared anonymous array, e.g. type t = record a,b:array of byte; end;

Version 1.4.24

11th May 2020

fixed assign array

Version 1.4.22

10th May 2020

fixed allowing member with same name as an ancestor member in $mode delphi
fixed allow static directive repetition in method implementation
fixed type helper for NativeInt and NativeUInt
fixed type helper Self in nested procedure
fixed (i*i).helperfunc
fixed SetLength(array,..) using resize instead of clone, when not shared. Assign marks an array with a hidden property $pas2jsrefcnt.

Version 1.4.20

11th April 2020

fixed stack overflow on long procedures
fixed class helper in with-do

Version 1.4.18

15th Dec 2019

access modifier constref: works as const, gives a warning for non records, arrays
omit not used resourcestrings
fixed sourcemap for Firefox

Version 1.4.16

15th Oct 2019

fixed helper for type alias type
fixed selecting last declared helper
replaced rtl.setArrayLength with faster non recursive version
fixed external static class method
fixed check for helper class method for external class must be static
fixed marking implicit call in property parameter

Version 1.4.14

30th Aug 2019

source map: when using -Jmabsolute -Jmsourceroot=file:// prepend the absolute source files with file://. Needed by Firefox.
fixed longword bitwise operations not, and, or, xor, shl, shr for numbers > $7fffffff
fixed creating relative paths without shared based directory, e.g. in source maps C:\foo\project1.js.map C:\bar\project1.pas

Version 1.4.12

28th Aug 2019

fixed get method reference of Self inside anonymous method without self
fixed typecast nil to class, interface, dynamic array
fixed endless loop on type TArr = array of TArr
no warning "function result not set" for fieldless record
fixed check for duplicate unit, when names differ
fixed ComInterfaceInstance is/as InterfaceType to use QueryInterface
fixed passing dynamic array to open array var parameter

Version 1.4.10

10th Jul 2019

added separate error message duplicate published method
fixed allowing reintroduce published method
fixed high(dynarrayvar with expr)
fixed class var a:t; b:t;
fixed type helper in other unit

Version 1.4.8

24th June 2019

fixed var a: somearray = nil
fixed fixed assignment inside anonymous proc inside for-loop
fixed ArcTan definition (bug ID 35655)
setlength(arr) now always clone for FPC/Delphi compatibility. Formerly it merely resized the array.

Version 1.4.6

20th Apr 2019

fixed advanced records
fixed linux rtl.js

Version 1.4.4

19th Apr 2019

fixed duplicate identifier when redefining a procedure.
fixed escaping string literals in asm blocks

Version 1.4.2

11th Apr 2019

fixed optimization of NewInstance function
fixed filer class helper
fixed passing TExt.new as parameter
fixed writing workingdirectory
fixed advanced record constructor
handling environment options PAS2JS_OPTS
fixed nodejs GetEnvironmentVariable returning empty string for non existing variables

Version 1.4.0

24th Mar 2019

fixed supporting older node.js (<7.0.0) using Math.pow instead of newer exponential operator **.

Version 1.4.0RC7

16th Mar 2019

fixed accessing Self in anonymous function
fixed UntypedArg:=recordvar and RecordType(UntypedArg)
an external method of a helper is treated like an external method of the helped type
updated examples
fixed hint method hides identifier with same signature
fixed hint argument not used, with array argument and only writing an element
fixed hint argument not used, with array argument passed as argument

Version 1.4.0RC6

8th Mar 2019

fixed passing class var to var argument
fixed reading precompiled units by default

Version 1.4.0RC5

6th Mar 2019

fixed overload var arg and type alias
added overload TryStrToFloat with type extended
nativeint shr int
nativeint shl int
no hint when hiding private method
fixed passing multiple -vm parameters
fixed include file search in module directoy
allow typecast external class to unrelated external class in $mode delphi, e.g. TJSEventTarget(aJSWindow). Normally you need TJSEventTarget(TJSObject(aJSWindow)).

Version 1.4.0RC4

3rd Mar 2019

fixed {$warn identifier error}
fixed and/or/xor with nativeint
warn on nativeint shl/shr int using only 32bit
fixed type helper call as arg
fixed (f*f).helpercall
fixed info message macro name set to "value"
make all now creates a default bin/targetcpu-targetos/pas2js.cfg, so that pas2js.exe works out-of-the box.

Version 1.4.0RC3

27th Feb 2019

renamed $modeswitch multiplescopehelpers to multihelpers, same as FPC
fixed TAliasOfEnumType.EnumValue
fixed emitting hints for not used units
fixed SetBufListSize

Version 1.4.0RC2

18th Feb 2019

fixed typecast jsvalue(anobject/interface), not doing getObject,
fixed obj.Free set to nil if already nil
added unit websvg.pas providing API to SVG elements
fixed getdelimitedtext, quoting was wrong
fixed array-of-const references in precompiled units
Added some missing routines in strutils (containstext, containsstr)

Version 1.4.0RC1

16th Feb 2019

Highlights:
- class helpers
- record helpers
- type helpers
- advanced records
- array of const
- added locate to JSONdataset, as well as lookup and support for lookup fields.
- Added Indexes (sorting) to JSONDataset.

Incompatibilities:
- pas2js now searches units first in the folder of the current module as Delphi does.
- JSArguments declaration was changed from an array of jsvalue to TJSFunctionArguments.

All changes of version 1.4.0

Pas2js supports class helpers, record helpers and type helpers since 1.3. The extend is only virtual, the helped type is kept untouched.
- A class helper can "extend" Pascal classes and external JS classes.
- A record helper can "extend" a record type. In $mode delphi a record helper can extend other types as well, see type helper
- A type helper can extend all base types like integer, string, char, boolean, double, currency, and some user types like enumeration, set, range and array types. It cannot extend interfaces or helpers.
- Type helpers are available by default in $mode delphi and disabled in $mode objfpc. You can enable them with {$modeswitch typehelpers}.
- By default only one helper is active per type, same as in FPC/Delphi. If there are multiple helpers for the same type, the last helper in scope wins. A class with ancestors can have one active helper per ancestor type, so multiple helpers can be active, same as FPC/Delphi. Using {$modeswitch multihelpers} you can activate all helpers within scope.
- Nested helpers (e.g. TDemo.TSub.THelper) are elevated. Visibility is ignored. Same as FPC/Delphi.
- Helpers cannot be forward defined (e.g. no THelper = helper;).
- Helpers must not have fields.
- Class Var, Const, Type
- Visibility : strict private .. published
- Function, procedure: In class and record helpers Self is the class/record instance. For other types Self is a reference to the passed value.
- Class function, class procedure: Helpers for Pascal classes/records can add static and non static class functions. Helpers for external classes and other types can only add static class functions.
- Constructor. Not for external classes. Works similar to construcors, i.e. THelpedClass.Create creates a new instance, while AnObj.Create calls the constructor function as normal method. Note that Delphi does not allow calling helper construcors as normal method.
- no destructor
- Property : getters/setters can refer to members of the helper, its ancestors and the helped class/record.
- Class property : getter can be static or non static. Delphi/FPC only allows static.
- Ancestors : Helpers can have an ancestor helper, but they do not have a shared root class, especially not TObject.
- no virtual, abstract, override. Delphi allows them, but 10.3 crashes when calling.
- inherited inside a method of a class/record calls helper of ancestor.
- inherited inside a helper depends on the $mode:
  - $mode objfpc : inherited; and inherited Name(args); work the same and searches first in HelperForType, then in ancestor(s).
  - $mode delphi: inherited; : skip ancestors and HelperForType, searches first in helper(s) of ancestor of HelperForType.
  - $mode delphi: inherited name(args); : same as $mode objfpc first searches in HelperForType, then Ancestor(s)
  - In any case if inherited; has no ancestor to call, it is silently ignored, while inherited Name; gives an error.
- RTTI: typeinfo(somehelper) returns a pointer to TTypeInfoHelper with Kind tkHelper.
- There are some special cases when using a type helper function/procedure on a value:
  - function result : using a temporary variable
  - const, const argument : When helper function tries to assign a value, pas2js raises a EPropReadOnly exception. FPC/Delphi use a temporary variable allowing the write.
  - property : uses only the getter, ignoring the setter. This breaks OOP, as it allows to change fields without calling the setter. This is FPC/Delphi compatible.
  - with value do ; : uses a temporary variable. Delphi/FPC do not support it.
built-in function concat (string1,string2,...)
local types (declared inside functions) are now created in the global scope
added locate to JSONdataset, as well as lookup and support for lookup fields.
Added Indexes (sorting) to JSONDataset.
Added unit fpexprpars.pas, an expression parser unit (needed for dataset filtering...)
omit unnecessary brackets on associative operations (a||b)||(c||d), (a&&b)&&(c&&d), (a|b)|c, (a&b)&c, (a^b)^c, (a+b)+c, (a-b)-c, (a*b)*c
records are now created as Object, instead of JS function
- records now have hidden (not enumerable) functions $new, $assign, $clone, $eq
- passing records to var argument now passes the record directly instead of creating a temporary setter
- Assigning a record, e.g. aRecord:=value, now copies the values, while keeping the JS object. This makes pointer of record Delphi/FPC compatible.
Advanced records: enabled in $mode delphi, disabled im $mode objfpc, enable with {$modeswitch AdvancedRecords}
- visibility private, strict private, public, default is public
- methods, class methods (must be static like in FPC/Delphi), constructors
- class vars
- const
- property, class property, array property, default array property
- nested types
- RTTI
Records can now have external fields with '[2]', '["a b"]'
In $mode objfpc forward class-of and pointer declarations can now refer to types even if there are other const/var/resourcestring sections in between. Same a FPC. For example:

type 
  TClassOfBird = class of TBird;
const k = 1;
type 
  TBird = class end;

lo(), hi() in $mode delphi returning the lo/hi byte, in $mode objfpc returning the lo/hi byte|word|longword.
char range with non ascii literals: 'Б'..'Я'
typecast char to word and other integers
added option -Jmabsolute to store absolute filenames in sourcemaps
JSArguments declaration was changed from an array of jsvalue to TJSFunctionArguments.
fixed expr[][] with default properties
fixed assigning class vars
pas2js now searches units first in the folder of the current module as Delphi does.
fixed case-of with non ascii literals
implemented ProcVar:=StaticClassMethod
implemented ProcVar:=ClassMethod inside static class method
class property getter/setter can now be static or non static.
array of const:
- Works the same: vtInteger, vtBoolean, vtPointer, vtObject, vtClass, vtWideChar, vtInterface, vtUnicodeString
- longword is converted to vtNativeInt instead of mangling to vtInteger
- vtExtended is double, Delphi/FPC: PExtended
- vtCurrency is currency, Delphi/FPC: PCurrency
- Not supported: vtChar, vtString, vtPChar, vtPWideChar, vtAnsiString, vtVariant, vtWideString, vtInt64, vtQWord
- only in pas2js: vtNativeInt, vtJSValue
fixed o.ProcVar() when ProcVar is typeless property
fixed const evaluation float - currency
fixed reading #$00xx as widechar, bug 34923
fixed relative paths in srcmap in Windows
nicer error message on invalid set element type

Version 1.2.0

23th Dec 2018
SVN release tag is https://svn.freepascal.org/svn/projects/pas2js/tags/release_1_2_0
added dataabstract: support for Remobjects Data Abstract: The TDAConnection and TDADataset classes
set rtl.js version to 10200
fixed parsing comment in $IFDEF, $IFNDEF, issue 34711
fixed searching unit

Version 1.2.0RC1

16th Dec 2018
SVN release tag is https://svn.freepascal.org/svn/projects/pas2js/tags/release_1_2_0RC1
Anonymous Functions:

type
  TRefProc = reference to procedure;
  TProc = procedure;
procedure DoIt(arg: TRefProc);
var 
  ref: TRefProc;
  proc: TProc;
begin
  ref:=procedure begin end; // assign to "reference of procedure" type
  ref:=procedure  // note the omitted semicolon
    var i: integer; // var, types, const, local procedures
    begin
    end; 
  DoIt(procedure begin end); // pass as argument
  refproc:=procedure assembler asm // embed JavaScript
      console.log("foo");
    end; 
  // Note that typecasting to non "reference to" does not make a difference 
  // because in JS all functions are closures:
  proc:=TProc(procedure begin end);   
end;

added variable rtl.version, which corresponds to the compiler version Major*10000+Minor*100+Release
added option -JoCheckVersion:
- -JoCheckVersion- : do not add rtl version check, default.
- -JoCheckVersion=main : insert rtl.checkVersion() into main.
- -JoCheckVersion=system : insert rtl.checkVersion() into system unit.
- -JoCheckVersion=unit : insert rtl.checkVersion() into every unit.
moved classtopas function to a class2pas unit, improved the interface so it uses a stringlist. Adapted the demo.
Fix System.Int() so it also works on IE (where Math.trunc is missing).
allow typecasting string(apointer) and pointer(astring)
asm-block now skips Pascal comments //... and Pascal string literals with single quotes. It no longer stops at end in such comments and string literals.
Fix FormatFloat() rounding logic (actually FloatToDecimal)
Fix stringofchar for count<=0
Fix quotestring and add quotedstr
implemented special includes like {$i %date%}:
- %date%: current date as string literal, '[yyyy/mm/dd]'
- %time%: current time as string literal, 'hh:mm:ss' Note that the inclusion of %date% and %time% will not cause the compiler to recompile the unit every time it is used: the date and time will be the date and time when the unit was last compiled.
- %line%: current source line number as string literal, e.g. '123'
- %linenum%: current source line number as integer, e.g. 123
- %currentroutine%: name of current routine as string literal
- %pas2jstarget%, %pas2jstargetos%, %fpctarget%, %fpctargetos%: target os as string literal, e.g. 'Browser'
- %pas2jstargetcpu%, %fpctargetcpu%: target cpu as string literal, e.g. 'ECMAScript5'
- %pas2jsversion%, %fpcversion%: compiler version as string literal, e.g. '1.0.2'
- If param is none of the above it will use the environment variable. Keep in mind that depending on the platform the name may be case sensitive. If there is no such variable an empty string is inserted.
implemented pred(char), succ(char)
allow typecasting TypedPointer(UntypedPointer)
allow assign UntypedPointer:=TypedPointer
skip double quotes in asm-blocks, e.g. s = "end"+"'";
added {$modeswitch OmitRTTI}: treat class section 'published' as 'public' and typeinfo() does not work on symbols declared with this switch. This allows to easily disable generating RTTI and allows the optimizer to omit unused published properties.
added option -Jpcmd<command>: Run postprocessor. For each generated js execute command passing the js as stdin and read the new js from stdout. This option can be added multiple times to call several postprocessors in succession. Quote the <command> to add options for the postprocessor. For an example see minifier.
Added built-in procedure Debugger;, which is converted to the JavaScript statement debugger;. If a debugger is running it will break on this line just like a break point.
Changed operator precedence level of is to same as and, or, xor. Same as fpc/delphi.
fixed assert to raise on false, bug 34643
built-in procedure val(const string; out enum; out int)
added option -JoRTL-<x>=<y> to change the name of a autogenerated identifier. See the list of available identifiers with -iJ.

Version 1.0.4

14th Nov 2018
SVN release tag is https://svn.freepascal.org/svn/projects/pas2js/tags/release_1_0_4
fixed calling destructor after exception in constructor
fixed initializing static array of record
fixed parsing if expr then raise else
fixed local record and enum types
fixed for e in set do
fixed for-in of shared sets
fixed inc(classvar)
fixed assigning class var of descendant classes
fixed error position on include file not found
fixed loading include file from cache
fixed range check of o.aString[index] and o.aArray[index]
fixed Result:=inherited;
fixed escaping invalid UTF-16 in string literals
fixed not generating octal literals in ECMAScript5, it bites strict mode
fixed IsNaN on ECMAScript6
fixed error on method in record
fixed name clash published property and external
fixed str(aCurrency)
catch ECompilerTerminate while parsing params
sLineBreak and LineEnding are now var under platform NodeJS

Version 1.0.3

28th Oct 2018
SVN release tag is https://svn.freepascal.org/svn/projects/pas2js/tags/release_1_0_3
fixed char(#10)
fixed: allow array property accessor argument mismatch const/default for simple types, e.g.:

function GetItems(const i: integer): byte;
property Items[i: integer]: byte read GetItems;

fixed high(intvar)
fixed WPO when using record constants
fixed include(FuncResultSet,enum)
fixed if then <empty> else <something>;
fixed p^.x:=
fixed acurrency:=aninteger to become acurrency:=aninteger*10000
fixed integer(acurrency) to become Math.floor(acurrency/10000)
fixed calling $final, clearing references on destroy
fixed not calling BeforeDestruction on exception in constructor
fixed $class be a property of the class, not the object
fixed local var modifier absolute in method
fixed using external const in const expression, e.g. const tau = 2*pi;
fixed selecting procedure overload, preferring lossy int over int to float
fixed calling Free inside method
fixed System.Int() so it also works on IE (where Math.trunc is missing).
fixed FormatFloat() rounding logic (actually FloatToDecimal)
fixed stringofchar for count<=0
fixed quotestring and add quotedstr

Version 1.0.2

26 Sep 2018
SVN release tag is https://svn.freepascal.org/svn/projects/pas2js/tags/release_1_0_2
fixed multiple class interface maps

Version 1.0.1

19 Sep 2018
SVN release tag is https://svn.freepascal.org/svn/projects/pas2js/tags/release_1_0_1
fixed generating srcmap for precompiled javascript

Version 1.0.0

9 Aug 2018
SVN release tag is https://svn.freepascal.org/svn/projects/pas2js/tags/release_1_0_0
SVN fixes branch is https://svn.freepascal.org/svn/projects/pas2js/branches/fixes_1_0
fixed override method of class interface
fixed crash on checking body element of empty proc
use default source filename in pcu/pju files

Version 1.0.0rc1

24 Jul 2018
fixed TObject.Create()
-vd shows stacktraces

Version 0.9.32

17 Jul 2018
fixed memory leaks and double frees

Version 0.9.31

10 Jul 2018
fixed aIntSet:=[0]
fixed crash on List.Items.Dummy
fixed some mem leaks
fixed -MDelphi + $mode objfpc + overloads withouts overload keyword
TGUIDString is now type string
RTL: added websockets

Version 0.9.30

4 Jul 2018
fixed calling COM interface _Release function for expressions.
fixed catching exception in pju variant of pas2js
split reserved words into two categories: the compiler now checks global JS identifiers like "Date" only for identifiers without path. That means a local variable Date will be renamed, a property Date will not, keeping the RTTI name of properties. Identifiers like apply are still renamed.
fixed property RTTI for alias type in other unit
fixed default value of integer variables, using 0 even if it is outside range. Reason: Delphi/FPC compatibility.

Version 0.9.29

29 Jun 2018
fixed pcu reading alias type
fixed analyzer: element needing typeinfo marks indirect elements as used normally
hint for text after final "end.", disable with $warn GARBAGE off
$warn BOUNDS_ERROR off: disable range check warnings at compile time
$warn MESSAGE_DIRECTIVE off: disable $message notes

Version 0.9.28

27 Jun 2018
fixed static array of char = stringlit+stringlit
fixed libpas2js disk full error
$warn directive: {$warn identifier on|off|default|error}, identifier can be a message number as shown with -vq or one of the following. Note, that some hints like "Parameter %s not used" are currently using the enable state at the end of the module, not the state at the hint source position.
- CONSTRUCTING_ABSTRACT: Constructing an instance of a class with abstract methods.
- IMPLICIT_VARIANTS: Implicit use of the variants unit.
- NO_RETVAL: Function result is not set
- SYMBOL_DEPRECATED: Deprecated symbol
- SYMBOL_EXPERIMENTAL: Experimental symbol
- SYMBOL_LIBRARY
- SYMBOL_PLATFORM: Platform-dependent symbol
- SYMBOL_UNIMPLEMENTED: Unimplemented symbol
- HIDDEN_VIRTUAL: method hides virtual method of ancestor

Version 0.9.27

26 Jun 2018
mode delphi: fixed passing static array to open array
allow assigning aTypeInfo:=pointer, needed by units with and without using unit typinfo

Version 0.9.26

25 Jun 2018
typecast function address to JS function, e.g. TJSFunction(@IntToStr)
typecast function reference to JS function, e.g. TJSFunction(OnClick)
typecast method address to JS function, e.g. TJSFunction(@List.Sort). Note that a method address creates a function wrapper to bind the Self argument.
changed some types to type alias: TDateTime, TDate, TTime, Single, Real, Comp, UnicodeString, WideString. This only effects typinfo and some compiler error messages. Reason: Delphi/FPC compatibility.
In mode delphi dynamic array initializations must now use square brackets instead of round brackets. For example var a: array of integer = [1,2];. Reason: Delphi compatibility.
Assignation using constant array. For instance Arr:=[1,2,3], where Arr is a dynamic array.
+ operator for arrays: This concatenation operator is available using the new modeswitch arrayoperators, which is enabled by default in mode delphi.
unit webgl updated
unit webaudio added
unit webbluetooth added
db unit: ftDataset field type added (not supported)
JSONDataset unit: TField.OldValue now works for TJSONDataset
webidl2pas tool added. A command line tool to create Pascal units from idl specs.
allow external record fields.
hint 5024 'Parameter "%s" not used' was split into two:
- 4501 for virtual/override methods
- 5024 for others

Version 0.9.25

7 Jun 2018
TComponent now supports IInterface
-o is now always relative to working directory, even if -FU or -FE is given. Reason: FPC compatibility
fixed typeinfo(typeintegerrange)
fixed using interface ancestor methods
fixed 'make' building with fpc 3.0.4

Version 0.9.24

2 Jun 2018
fixed precompiled js formatting to same options as compiled js
fixed unit analyzer private method used by protected property
fixed class-of RTTI
fixed precompiled resolve pending scopes before pending units

Version 0.9.23

28 May 2018
added webgl demos from Ryan Joseph
for value in jsarray do - where jsarray is any external class with a matching length and default property. This enumerates similar to other arrays the values, not the index.
allow typecast array to TJSObject
allow typecast TJSObject to array
Unicode character constants outside of BMP, e.g. #$10437
allow {$H+}, error on {$H-}
added intrinsic procedure WriteStr(out s: string; params...), which works similar to str(param,s), except it can take any amount of parameters, which are concatenated.
added option -Sm to enable macro replacements

Version 0.9.22

17 May 2018
Fixed $00ff00

Version 0.9.21

16 May 2018
added option -FE: set the main output path, used for the main .js file, if there is no -o option or the -o option has no folder.
fixed WPO typeinfo of inherited property
for easier FPC integration the following message IDs were changed:
- nVirtualMethodXHasLowerVisibility = 3250; // was 3050
- nConstructingClassXWithAbstractMethodY = 4046; // was 3080
- nNoMatchingImplForIntfMethodXFound = 5042; // was 3088
- nSymbolXIsDeprecated = 5043; // was 3062
- nSymbolXBelongsToALibrary = 5065; // was 3061
- nSymbolXIsDeprecatedY = 5066; // 3063
- nSymbolXIsNotPortable = 5076; // was 3058
- nSymbolXIsNotImplemented = 5078; // was 3060
- nSymbolXIsExperimental = 5079; // was 3059

Version 0.9.20

11 May 2018
fixed passing typecasted alias type to var parameter
forbid typecast rectordtype to other recordtype
remove leading zeroes in number literals
added namespace option -FN<x>, marked -NS as obsolete. Reason: fpc compatibility.
added option -vz : write messages to stderr, -o. still uses stdout.
added option -ic : Write list of supported JS processors usable by -P<x>
added option -io : Write list of supported optimizations usable by -Oo<x>
added option -it : Write list of supported targets usable by -T<x>
added option -SIcom, -SIcorba interface style
added option -vv : Write pas2jsdebug.log with lots of debugging info
fixed option -va including option -vt
fixed combination of -Jc -o.
option -vt now writes used unit scopes
external class fields with brackets. e.g. X: nativeint external name '[0]'
autogenerated interface GUIDs now consider the unitname

Version 0.9.19

2 May 2018
type alias type, e.g. type TCaption = type string;
record const, e.g. const p: TPoint = (x:1; y:2);
{$WriteableConst on|off}: treat typed constants as readonly, e.g. const i:byte=3;... i:=4; creates a compile time error.
forbid assignment of for-loop variable
nested classes
property specifier nodefault
default(type) returning the initial value of the type, e.g. default(recordtype).
external typed const: e.g. const NaN: Double; external name 'NaN';
case string of support for ranges
fixed typecast shortint(integer)

Version 0.9.18

26 Apr 2018
Fixed rcArrR in rtl.js

Version 0.9.17

25 Apr 2018
Fix recno calculation for TJSONDataset
Fix initializing next buffers in TDataset.
Implemented Currency as double, values are multiplied by 10000 and truncated, so a 2.7 is stored as 27000.
Implemented pointer of record. It's simply a reference.
- p:=@r translates to p=r
- p^.x becomes p.x
- intrinsics new(PointerOfRecord), dispose(PointerOfRecord). dispose(p) sets p to null if possible.
enumerator for jsvalue: e.g. var v: jsvalue; key: string; for key in jsvalue do translates to for (key in jsvalue){}
enumerator for external class: e.g. var o: TJSObject; key: string; for key in o do translates to for (key in o){}
range checking $R+
- compile time: warnings become errors
- run time: int:=, int+=, enum:=, enum+=, intrange:=, intrange+=, enumrange:=, enumrange+=, char:=, charrange:=
- run time: parameters: int, enum, intrange, enumrange, char, charrange
- run time: array[index], string[index]
type cast integer to integer, e.g. byte(aLongInt)
- with range checking enabled: error if outside range
- without range checking: emulates the FPC/Delphi behaviour: e.g. byte(value) translates to value & 0xff, shortint(value) translates to value & 0xff <<24 >>24.
case-of statement: error on duplicate values
fixed error on int:=double

Version 0.9.16

21 Apr 2018
mode delphi: allow "ObjVar is IntfType" and "ObjVar as IntfType" with unrelated types.
TVirtualInterface - create an implementation at runtime. rtl unit rtti.pas
typecast a class type to JS Object, e.g. TJSObject(TObject)
typecast an interface type to JS Object, e.g. TJSObject(IUnknown)
typecast a record type to JS Object, e.g. TJSObject(TPoint)
not jsvalue is converted to !jsvalue
"=" operator for records with static array fields
changed TGuid to record
TGUID record
- GuidVar:='{guid}', StringVar:=GuidVar, GuidVar:=IntfTypeOrVar, GuidVar=IntfTypeOrVar, GuidVar=string
- pass IntfTypeOrVar to GuidVar parameter
added new type TGuidString to system unit
- GuidString:=IntfTypeOrVar, GuidString=IntfTypeOrVar
- pass IntfTypeOrVar to GuidString parameter
added option -JoUseStrict, to enable or disable adding "use strict"

Version 0.9.15

8 Apr 2018
fixed crash when ancestor implements more interfaces than current class.

Version 0.9.14

8 Apr 2018
fixed duplicates in rtl/strutils.pas
fixed reference counts on reading element lists
implemented using function result variable in for-loop. e.g. for Result:=..., for Result in ...
fixed for string in arrayofstring do
fixed $scopedenums with anonymous enumtype. e.g. type TSet = set of (A,B);
implemented class interfaces:
- methods, properties, default property
- {$interfaces com|corba|default}
  - COM is default, default ancestor is IUnknown (mode delphi: IInterface), managed type, i.e. automatically reference counted via _AddRef, _Release, the checks for support call QueryInterface
  - CORBA: lightweight, no automatic reference counting, no default ancestor, fast support checks.
- inheriting
- GUIDs are simple string literals, TGUID = string.
- An interface without a GUID gets one autogenerated from its name and method names.
- a class implementing an interface must not be external
- a ClassType "supports" an interface, if it itself or one of its ancestors implements the interface. It does not automatically support an ancestor of the interface.
- method resolution, procedure IUnknown._AddRef = IncRef;
- delegation: property Name: interface|class read Field|Getter implements AnInterface;
- is-operator:
  - IntfVar is IntfType - types must be releated
  - IntfVar is ClassType - types can be unrelated, class must not be external
  - ObjVar is IntfType - can be unrelated
- as-operator
  - IntfVar as IntfType - types must be releated
  - IntfVar as ClassType - types can be unrelated, nil returns nil, invalid raises EInvalidCast
  - ObjVar as IntfType - mode delphi: types must be related, objfpc: can be unrelated, nil if not found, COM: uses _AddRef
- typecast:
  - IntfType(IntfVar) - must be related
  - ClassType(IntfVar) - can be unrelated, nil if invalid
  - IntfType(ObjVar) - mode delphi: must be related, objfpc: can be unrelated, nil if not found, COM: if ObjVar has delegate uses _AddRef
  - TJSObject(intfvar)
- Assign operator:
  - IntfVar:=nil
  - IntfVar:=IntfVar2 - IntfVar2 must be same type or a descendant
  - IntfVar:=ObjVar - nil if unsupported
  - jsvalue:=IntfVar
- Assigned(IntfVar)
- RTTI
- $modeswitch ignoreinterfaces was removed
- Not supported: array of interface, interface as record member

Version 0.9.13

21 Mar 2018
fixed keeping methods AfterConstruction, BeforeDestruction
fixed modeswitch ignoreinterfaces

Version 0.9.12

19 Mar 2018
fixed parsing procedure p(var a; b: t)
fixed checking duplicate implementation of unit interface procedure

Version 0.9.11

16 Mar 2018
fixed loading files encoded in non UTF-8, e.g. UTF-8 with BOM. This was a regression.

Version 0.9.10

13 Mar 2018
fixed renaming overloads of unit interface at end of interface, not at end of module. Needed for unit cycles.

Version 0.9.9

13 Mar 2018
Fixed libpas2js to use WorkingDir parameter instead of GetCurrentDir
Fixed static array clone function.

Version 0.9.8

9 Mar 2018
fixed optimizer keep overrides

Version 0.9.7

7 Mar 2018
fixed pass local variable v as argument to a var parameter.

Version 0.9.6

6 Mar 2018
static arrays are now cloned on assignment or when passed as argument to a function (no const, var, out)
Fixed array[enum..enum] of
pas2jslib: fixed checks of directoryexists to use cache
uses with in-filename: In $mode delphi the in-filenames are only allowed in the program and the unitname must fit the filename, e.g. uses unit1 in 'sub/Unit1.pas'. In $mode objfpc units can use in-filenames too and alias are allowed, e.g. uses foo in 'bar.pas'.

Version 0.9.5

12 Feb 2018
Error on duplicate forward class
Error on method class in other unit
Fixed index property override

Version 0.9.4

8 Feb 2018
Removed debug writeln, fixing Disk Full errors in libpas2js.
Nicer error messages on illegal qualifier.

Version 0.9.3

4 Feb 2018
Fixed number literals outside int64.
Shorten float numbers, e.g. 1.00000E+001 to 10
unexpected exception now sets ExitCode to 1

Version 0.9.2

4 Feb 2018
Fixed -constant, when constant is a negative number

Version 0.9.1

3 Feb 2018
Fixed class const evaluating expression.

Version 0.9.0

31 Jan 2018
Fixed srcmap header. It must be )]}' to work in Firefox. Added option -JmXSSIHeader to exclude or include the XSSI protection header.
Ignore procedure modifier "inline"
Char(int)
search units and include files case insensitive by default. Enable FPC like search with parameter -JoSearchLikeFPC.
Const in external classes:
- const c: type = value, const c = value are translated to the value.
- const c: type, class const c: type are treated like readonly variables.

Version 0.8.45

23 Jan 2018
is-operator: jsvalue is class-type, jsvalue is class-of-type
assertions: -Sa, $C+|-, $Assertions on|off, Assert(boolean), Assert(boolean,string)
object checks: -CR, $ObjectChecks on|off, check method calls, check object type casts
some bugfixes for alias types
multi dimensional static array const, e.g. array[1..2,3..4] of byte = ((5,6),(7,8))
fixed overloads when skipping class interface
fixed s[i]:= when s is a var parameter

Version 0.8.44

15 Jan 2018
State of directives $Hints|Notes|Warnings on|off at end of procedure is used for analyzer hints, e.g. "local variable x not used".
Fixed re-reading directories after Reset.

Version 0.8.43

4 Jan 2018
Fixed -Fi include path
Read directories instead of checking every single file. Added hooks for ReadDir to libpas2js.

Version 0.8.42

25 Dec 2017
var absolute modifier for local variables
$scopedenums
$hint, $note, $warn, $error, $fatal, $message text
$message hint|note|warn|error|fatal text
$hints, $notes, $warnings on|off

Version 0.8.41

25 Dec 2017
Enumerators:
- ordinal types: char, boolean, byte, ..., longword, enums, sets, static array, custom range
- const set
- variables: set, string, array
- class GetEnumerator
- It does not support operator enumerator, IEnumerator, member modifier enumerator.

Version 0.8.40

File read callback for pas2jslib

Version 0.8.39

14 Dec 2017
fixed circular unit dependencies

Version 0.8.38

12 Dec 2017
support for * and ? in search paths
fixed converting a typecast to an alias proc type
fixed inherited-identifier-as-expr
emit warning method-hides-method-in-base-type only for virtual methods
reduced function hides identifier from level hint to info
fixed unit contnrs to always use mode objfpc.

Version 0.8.37

5 Dec 2017
Bugfixed a combination of overload/override

Version 0.8.36

5 Dec 2017
fixed missing brackets in binary expression and left side has a call (a-f(b)) / (c-d)

Version 0.8.35

20 Nov 2017
fixed a bug in the overload code

Version 0.8.34

19 Nov 2017
fixed skipping attributes behind procedure declarations.
Procedures/methods now properly hides procs with same name.
In mode delphi overloads now always require the 'overload' modifier.
In mode objfpc the modifier is required when using different scopes.
hints for hiding identifiers of other units.
implemented system.built-in-identifier.

Version 0.8.33

14 Nov 2017
srcmaps with included sources now ignores untranslatable local paths and simply uses the full local path.
custom enum ranges, e.g. TBlobType = ftBlob..ftBla
custom integer ranges, e.g. TSome = 1..5
custom char ranges
set of custom enum/integer/char ranges
the conversion of the for-to-do loop has changed. If the loop is never executed, the loop variable is not touched. And the start expression is now executed before the end expression.

Version 0.8.32

8 Nov 2017
some bug fixes for warnings

Version 0.8.31

29 Oct 2017
bugfix for implicit function calls of parameters of some built in functions.

Version 0.8.30

19 Oct 2017
nicer "can't find unit" position
fixed a crash parsing uses clause

Version 0.8.29

16 Oct 2017
bugfixes
it now supports directive $M alias $TypeInfo

Version 0.8.28

fixed passing static array

Version 0.8.27

4 Oct 2017
implemented resourcestrings
implemented logical xor
fixed class-of-typealias
fixed property index modifier expression

Version 0.8.26

3 Oct 2017
fixed RTTI for static arrays
implemented property modifier index
implemented FuncName:=

Version 0.8.25

1 Oct 2017
bugfixes
a new modeswitch ignoreattributes to ignore attributes.

Version 0.8.24

28 Sep 2017
implemented multi dimensional SetLength
fixed keeping old values when using SetLength
fixed method override of override

Version 0.8.23

27 Sep 2017
property default value for sets
custom integer ranges, like TValueRelationship
typecast enums to integer type (same as ord function)
new modeswitch ignoreinterfaces to parse class interfaces, but neither resolve nor convert them. Using them will cause an error.

Version 0.8.22

24 Sep 2017
fixed loading dotted units
implemented property stored and default modifiers

Version 0.8.21

21 Sep 2017
fixed aString[index]:=
fixed analyzer to mark default values of arguments
many improvements for sourcemaps making step-over/into nicer in Chrome.
new tool fpc/packages/fcl-js/examples/srcmapdump to dump the produced sourcemap.
unicodestring and widechar are now declared by the compiler instead of system.pas

Version 0.8.20

14 Sep 2017
Static array const are now implemented. For example:
array['a'..'d'] of integer = (1,2,3,4);
array[1..3] of char = 'pas';

Version 0.8.19

12 Sep 2017
several bug fixes
started static arrays:
- array[2..6] of char
- array['a'..'z'] of char
- array[boolean] of longint
- array[byte] of string
- array[enum] of longint
- array[char] of boolean // Note that char is widechar!
- low(), high()

Version 0.8.18

6 Sep 2017
Anonymous arrays in record members are now supported:

  TFloatRec = Record
     ...
     Digits: Array Of Char;
  End;

Version 0.8.17

3 Sep 2017
checks for semicolons between statements
fixed proc type of procedure in Delphi mode
implemented @@ operator for proc types in Delphi mode.
compile time evaluation, range and overflow checking for boolean, base integer types, enums, sets, custom integer ranges, char, widechar, string, single and double.

Version 0.8.16

28 Jul 2017
bugfix release.

Version 0.8.15

8 Jul 2017
compiler can now generate source maps when passing option -Jm

Version 0.8.14

17 May 2017
now supports TObject.Free.

In Delphi/FPC obj.Free works even if obj is nil. In JavaScript this would crash. And to free memory JS requires to clear all references, which is not required in Delphi/FPC. Therefore the compiler adds code to check for null, call the destructor and sets the variable to null.

It does not support freeing properties and function results. For example: List[i].Free; will give a compiler error. The property setter might create side effects, which would be incompatible to Delphi/FPC.

Version 0.8.13

11 May 2017
$IF
$ELSEIF
$IFOPT
$Error
$Warning,
$Note
$Hint
And in the config files it supports #IF, #IFDEF, #IFNDEF, #ELSEIF, #ELSE, #ENDIF.

Version 0.8.12

5 May 2017
dotted unit names and namespaces.

Version 0.8.11

23 Apr 2017
dynamic arrays can now be initialized with a constant. Same syntax as static arrays: const a: array of string = ('one', 'two');
Classes can now be declared in the unit implementation.
Unit nodejs now has a console class TNJSConsole.
I added the fpcunit package. Successful tests already work. A fail is not yet caught.

Version 0.8.10

22 Apr 2017
you can now use "if aJSValue then", which works just like the JS "if(v)".
added ParamCount, ParamStr, GetEnvironment* functions. The default is not doing much.
new package fcl_base_pas2js, containing custapp and nodejsapp: - TCustomApplication is the known class from the FCL, but with abstract methods.
TNodeJSApplication is a TCustomApplication using nodejs to read command line params and environment variables.

Version 0.8.9

21 Apr 2017
The compiler now has the types 53bit NativeInt and 52bit NativeUInt. Keep in mind that there is still no range checking.

Current aliases:

  JSInteger = NativeInt;

  Integer = LongInt;
  Cardinal = LongWord;
  SizeInt = NativeInt;
  SizeUInt = NativeUInt;
  PtrInt = NativeInt;
  PtrUInt = NativeUInt;
  ValSInt = NativeInt;
  ValUInt = NativeUInt;
  ValReal = Double;
  Real = Double;
  Extended = Double;

  Int64 = NativeInt unimplemented;
  QWord = NativeUInt unimplemented;
  Single = Double unimplemented;
  Comp = Int64 unimplemented;

  UnicodeString = String;
  WideString = String;
  WideChar = char;

Version 0.8.8

20 Apr 2017
bugfix release.

Version 0.8.7

18 Apr 2017
$mod: the current module
Self: in a method with nested functions this holds the class or class instance.
overloads are now chosen like FPC/Delphi not only by type, but also by precision. This means if there are several compatible overloads, and none fits exactly it will choose the next higher. Formerly it gave an error.
cardinal is no longer a base type, but longword is. Same as FPC.

Version 0.8.6

17 Apr 2017
bugfix release.

Version 0.8.5

15 Apr 2017
bugfix for the analyzer.
supports published array properties and published records.
array properties for external classes.

Version 0.8.4

14 Apr 2017
bugfix release.

Version 0.8.3

4 Apr 2017
pas2js now has code navigation in Lazarus

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