Sun, 07 Mar 2010 14:12:14 +0100, Lutger wrote: > retard wrote: > >> Sun, 07 Mar 2010 05:05:03 +0000, BCS wrote: >> >>> Hello Jane, >>> >>>> Is D a cult? >>>> >>>> >>> No, not yet. Walter hasn't figured out how to brain wash people over a >>> newsgroup yet. However I think Andrei's working on it and Don should >>> have a patch in time for TDPL going out ;b >> >> FWIW, I think there is a kernel of truth in the original claim. People >> tend to agree evey time Walter proposes a new feature such as built-in >> regexps - yes, they were removed shortly afterwards. But when >> bearophile or some retard propose some features from functional >> languages that are natural extensions to existing ones, everyone hates >> them and tells us to go back to our ivory towers. > > That's weird, I don't see this at all. Maybe you focus too much on one > or two negative comments? > > I also don't understand that you think D designers have a bias against > functional programming, especially since the majority of the features > that have been implemented the last years are heavily influenced by that > style of programming.
Uh, majority of the features? From http://www.digitalmars.com/d/2.0/ features2.html: > opAssign can no longer be overloaded for class objects. nope Added pure keyword. [1] > Extended enums to allow declaration of manifest constants. nope >Added const/immutable structs, classes and interfaces. [1] >Added const and immutable to IsExpressions. nope >Added typeof(return) type specifier. [2] >Added overloadable unary * operation as opStar(). nope >Full closure support added. ok, but this is nothing special (c++0x, c# 3.5, java7, vb.net and everyone else already has this very basic feature) >Transformed all of string, wstring, and dstring into immutable definitions [1] >Added Overload Sets for functions and templates. nope >std.math.sin, cos, tan are now evaluated at compile time if the argument is a constant. nope >Added C++ interface for 'plugins'. nope >Changed result type of IsExpression from int to bool. nope >Added optional TemplateParameterList to IsExpression. nope >Added warning when override is omitted. nope >Added new syntax for string literals (delimited, heredoc, D tokens) nope >Added __EOF__ token nope >Added D_Version2 predefined identifier to indicate this is a D version 2.0 compiler nope >Added .idup property for arrays to create immutable copies. [1] >Added transitive const and immutable. in parameter storage class now means scope const. [1] >class and struct invariant declarations now must have a (). nope >Added isSame and compiles to __traits. nope >Added ForeachRangeStatement Can't really tell whether this is functional or not. I know that C# LINQ (ZF expressions) can be considered a functional construct, but D2 foreach isn't really the same. Let's see what features I had in mind: - Algrebraic data types - Pattern matching (extension to enum/string/integer accepting switch) - Higher kinded types - Tuples (no auto-folding, real product types) - Built-in variants (real sum types) - Currying, lazy evaluation - Fusion optimizations (e.g. list and stream fusion) - Type classes - basic control constructs are expressions, not statements (e.g. unify if- then-else and : ? into a functional if-then-else) - better syntax for lambdas [1] if immutability is considered functional [2] if type inference is considered functional
