mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-04-08 21:28:14 +02:00
aa5a5e79ce
rtl: add enumerators to the basic classes tests: add enumerators test which compiles and work both by fpc and dcc compiler: + start for-in loop implementation: implement for-in loop for types (enumerations and ranges), strings, arrays and sets. todo: perform type checking, optimize array and string loops - use temp for expression, implement for-in loop for classes test: + add a simple test for the 'for-in' loop compiler: fix string for-in loop. now it uses a temp variable to store string expression result complier: fix for-in array loop. use a temp variable for the loop expression only if loop is not an open array loop complier: continue enumerator implementation: + add operator enumerator which give an ability to add enumerator for an existent type (for example to override builtin string enumerator) + add class enumerator support via delphi compatible GetEnumerator method + enumerator class/object template (function MoveNext: Boolean; property Current) + tests compiler: fix for-in loop for arrays. delphi does not copy arrays to a temp variable and it is possible to change array during loop. + test compiler: add reference for the enumerator operator when it is used + another test for operator enumerator for a class compiler: add reference for the enumerator operator when it is used + another test for operator enumerator for a class compiler: enumerator directive support: + allow to mark methods and properties by 'enumerator MoveNext' and 'enumerator Current' modifiers. Parser checks return types and duplicates. + prefer *marked* by enumerator directive methods and properties than GetEnumerator and Current builtin symbols + increase ppu version + test rtl: add IEnumerator and IEnumerable interfaces declarations tests: for-in loop tests: + add small comment at the top of test program compiler: allow 'enumerator MoveNext' for the interface function declaration + test compiler: move all for-in loop helpers to the nflw unit compiler: don't allow the compiler to choose the non-valid enumerator operator for the for-in loop git-svn-id: trunk@14008 -
72 lines
1023 B
ObjectPascal
72 lines
1023 B
ObjectPascal
program tforin1;
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// test for-in loop for the basic types: Enumeration, Range, Array, String and Set
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{$mode objfpc}{$H+}
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{$apptype console}
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uses
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Classes, typinfo;
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type
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TColor = (clRed, clGreen, clBlue);
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procedure LoopTypes;
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type
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IntRange = 0..9;
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var
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c: TColor;
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i: integer;
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begin
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// check loop in range
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for i in IntRange do
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writeln(i);
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// check loop in enum
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for c in TColor do
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writeln(GetEnumName(TypeInfo(c), ord(c)));
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end;
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procedure LoopString(s: string);
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var
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c: char;
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begin
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// check loop in string
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for c in s do
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write(c);
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WriteLn;
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end;
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procedure LoopArray(a: array of integer);
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var
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i: integer;
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begin
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// check loop in array
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for i in a do
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write(i);
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WriteLn;
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end;
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procedure LoopSet;
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const
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s = [clRed, clBlue];
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var
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c: TColor;
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begin
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// check loop in set
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for c in s do
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writeln(GetEnumName(TypeInfo(c), ord(c)));
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end;
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var
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a: array[0..2] of integer;
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begin
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LoopTypes;
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LoopString('test');
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a[0]:=0;
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a[1]:=1;
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a[2]:=2;
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LoopArray(a);
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LoopSet;
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end.
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