diff options
author | Ralph Amissah <ralph@amissah.com> | 2016-06-16 01:49:06 -0400 |
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committer | Ralph Amissah <ralph@amissah.com> | 2019-04-04 14:48:18 -0400 |
commit | 8ab7e935913c102fb039110e20b71f698a68c6ee (patch) | |
tree | 3472debd16ce656a57150399ce666e248565f011 /src/sdlang/libinputvisitor | |
parent | step4.1 as step4 but extract header meta & make on first reading in document (diff) |
step5 sdlang used for config files and doc headers
Diffstat (limited to 'src/sdlang/libinputvisitor')
-rw-r--r-- | src/sdlang/libinputvisitor/dub.json | 10 | ||||
-rw-r--r-- | src/sdlang/libinputvisitor/libInputVisitor.d | 91 |
2 files changed, 101 insertions, 0 deletions
diff --git a/src/sdlang/libinputvisitor/dub.json b/src/sdlang/libinputvisitor/dub.json new file mode 100644 index 0000000..6e273c8 --- /dev/null +++ b/src/sdlang/libinputvisitor/dub.json @@ -0,0 +1,10 @@ +{ + "name": "libinputvisitor", + "description": "Write D input range generators in a straightforward coroutine style", + "authors": ["Nick Sabalausky"], + "homepage": "https://github.com/abscissa/libInputVisitor", + "license": "WTFPL", + "sourcePaths": ["."], + "importPaths": ["."], + "excludedSourceFiles": ["libInputVisitorExample.d"] +} diff --git a/src/sdlang/libinputvisitor/libInputVisitor.d b/src/sdlang/libinputvisitor/libInputVisitor.d new file mode 100644 index 0000000..15c2ce8 --- /dev/null +++ b/src/sdlang/libinputvisitor/libInputVisitor.d @@ -0,0 +1,91 @@ +/++ +Copyright (C) 2012 Nick Sabalausky <http://semitwist.com/contact> + +This program is free software. It comes without any warranty, to +the extent permitted by applicable law. You can redistribute it +and/or modify it under the terms of the Do What The Fuck You Want +To Public License, Version 2, as published by Sam Hocevar. See +http://www.wtfpl.net/ for more details. + + DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE + Version 2, December 2004 + +Copyright (C) 2004 Sam Hocevar <sam@hocevar.net> + +Everyone is permitted to copy and distribute verbatim or modified +copies of this license document, and changing it is allowed as long +as the name is changed. + + DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE +TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION + +0. You just DO WHAT THE FUCK YOU WANT TO. ++/ + +/++ +Should work with DMD 2.059 and up + +For more info on this, see: +http://semitwist.com/articles/article/view/combine-coroutines-and-input-ranges-for-dead-simple-d-iteration ++/ + +import core.thread; + +class InputVisitor(Obj, Elem) : Fiber +{ + bool started = false; + Obj obj; + this(Obj obj) + { + this.obj = obj; + super(&run); + } + + private void run() + { + obj.visit(this); + } + + private void ensureStarted() + { + if(!started) + { + call(); + started = true; + } + } + + // Member 'front' must be a function due to DMD Issue #5403 + private Elem _front; + @property Elem front() + { + ensureStarted(); + return _front; + } + + void popFront() + { + ensureStarted(); + call(); + } + + @property bool empty() + { + ensureStarted(); + return state == Fiber.State.TERM; + } + + void yield(Elem elem) + { + _front = elem; + Fiber.yield(); + } +} + +template inputVisitor(Elem) +{ + @property InputVisitor!(Obj, Elem) inputVisitor(Obj)(Obj obj) + { + return new InputVisitor!(Obj, Elem)(obj); + } +} |