Custom Property interface on my own objects

Clash Royale CLAN TAG#URR8PPP

up vote
3
down vote

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I know I can use the Property interface for things like Graph but I want to use it for all of my objects. This includes:

• SetProperty


• PropertyValue


• PropertyList


• RemoveProperty

Can I define it in some efficient, non-memory-leaky way for any object I want?

customization undocumented properties

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asked 4 hours ago

b3m2a1

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add a comment | 

up vote
3
down vote

favorite

I know I can use the Property interface for things like Graph but I want to use it for all of my objects. This includes:

• SetProperty


• PropertyValue


• PropertyList


• RemoveProperty

Can I define it in some efficient, non-memory-leaky way for any object I want?

customization undocumented properties

share|improve this question

asked 4 hours ago

b3m2a1

24.9k254147

add a comment | 

up vote
3
down vote

favorite

up vote
3
down vote

favorite

I know I can use the Property interface for things like Graph but I want to use it for all of my objects. This includes:

• SetProperty


• PropertyValue


• PropertyList


• RemoveProperty

Can I define it in some efficient, non-memory-leaky way for any object I want?

customization undocumented properties

share|improve this question

asked 4 hours ago

b3m2a1

24.9k254147

I know I can use the Property interface for things like Graph but I want to use it for all of my objects. This includes:

• SetProperty


• PropertyValue


• PropertyList


• RemoveProperty

Can I define it in some efficient, non-memory-leaky way for any object I want?

customization undocumented properties

customization undocumented properties

share|improve this question

asked 4 hours ago

b3m2a1

24.9k254147

share|improve this question

asked 4 hours ago

b3m2a1

24.9k254147

share|improve this question

share|improve this question

asked 4 hours ago

b3m2a1

24.9k254147

asked 4 hours ago

b3m2a1

24.9k254147

asked 4 hours ago

b3m2a1

24.9k254147

24.9k254147

add a comment | 

add a comment | 

1 Answer
1

active

oldest

votes

up vote
3
down vote

The answer is a definitive yes, if you're willing to work with the new Language`ExpressionStore. This goes hand-in-hand with the Language`MutationHandler stuff to allow us to finally do custom OOP in Mathematica without any odd tricks.

if you just want to play with this scroll down to the example section

Basic Idea

But for the problem at hand, this is actually very simple. We simply make property-store:

$propStore=Language`NewExpressionStore["<PropertyStore>"];

Then we use the get-put-remove interface on this:

containsQ[x_]:=
 $propStore@"containsQ"[x];
containsQ[x_, p_]:=
 $propStore@"containsQ"[x, p];
(* ::Subsubsection::Closed:: *)
(*get*)
get[x_, p_]:=
 $propStore@"get"[x, p];
(* ::Subsubsection::Closed:: *)
(*set*)
set[x_, p_, v_]:=
 $propStore@"put"[x, p ,v];
(* ::Subsubsection::Closed:: *)
(*remove*)
remove[x_]:=
 $propStore@"remove"[x];
(* ::Subsubsection::Closed:: *)
(*keys*)
keys:=
 $propStore@"getKeys";
keys[x_]:=
 $propStore@"getKeys"[x];
(* ::Subsubsection::Closed:: *)
(*list*)
list:=
 $propStore@"listTable";

And now we can use this naturally as a property set/get mechanism.

Fun Example

I put this all into a little package that imitates the syntax of Property and friends. Load this from GitHub:

Get["https://github.com/b3m2a1/mathematica-tools/raw/master/Props.m"]

then we'll define a function that caches results in a memory cheap way:

cachedCompute[m_, p_, fn_] :=
 Replace[PropVal[m, p], 
 Missing["PropertyAbsent", p] :>
 With[val = fn[m], 
 SetProp[m, p -> val];
 val
 ]
 ]

Module[,
 (* I do this to avoid $HistoryLength *)
 m1 = MemoryInUse;
 myMat = RandomReal[, 100, 100];
 m1
 ];

t1 = RepeatedTiming[cachedCompute[myMat, "Inverse", Inverse]][[1]];
t2 = RepeatedTiming[Inverse[myMat]][[1]];
m2 = MemoryInUse;

t2/t1

5.*10^1

m2 - m1

167088

Clear@myMat

MemoryInUse - m1

10480

And we see the caching got us a 50x speed-up but once the original matrix was cleared, the cached memory was free.

Fast properties without memory leaks, thanks to Jason B.

share|improve this answer

edited 1 hour ago

J. M. is computer-less♦

94.9k10294454

answered 4 hours ago

b3m2a1

24.9k254147

add a comment | 

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

active

oldest

votes

active

oldest

votes

up vote
3
down vote

The answer is a definitive yes, if you're willing to work with the new Language`ExpressionStore. This goes hand-in-hand with the Language`MutationHandler stuff to allow us to finally do custom OOP in Mathematica without any odd tricks.

if you just want to play with this scroll down to the example section

Basic Idea

But for the problem at hand, this is actually very simple. We simply make property-store:

$propStore=Language`NewExpressionStore["<PropertyStore>"];

Then we use the get-put-remove interface on this:

containsQ[x_]:=
 $propStore@"containsQ"[x];
containsQ[x_, p_]:=
 $propStore@"containsQ"[x, p];
(* ::Subsubsection::Closed:: *)
(*get*)
get[x_, p_]:=
 $propStore@"get"[x, p];
(* ::Subsubsection::Closed:: *)
(*set*)
set[x_, p_, v_]:=
 $propStore@"put"[x, p ,v];
(* ::Subsubsection::Closed:: *)
(*remove*)
remove[x_]:=
 $propStore@"remove"[x];
(* ::Subsubsection::Closed:: *)
(*keys*)
keys:=
 $propStore@"getKeys";
keys[x_]:=
 $propStore@"getKeys"[x];
(* ::Subsubsection::Closed:: *)
(*list*)
list:=
 $propStore@"listTable";

And now we can use this naturally as a property set/get mechanism.

Fun Example

I put this all into a little package that imitates the syntax of Property and friends. Load this from GitHub:

Get["https://github.com/b3m2a1/mathematica-tools/raw/master/Props.m"]

then we'll define a function that caches results in a memory cheap way:

cachedCompute[m_, p_, fn_] :=
 Replace[PropVal[m, p], 
 Missing["PropertyAbsent", p] :>
 With[val = fn[m], 
 SetProp[m, p -> val];
 val
 ]
 ]

Module[,
 (* I do this to avoid $HistoryLength *)
 m1 = MemoryInUse;
 myMat = RandomReal[, 100, 100];
 m1
 ];

t1 = RepeatedTiming[cachedCompute[myMat, "Inverse", Inverse]][[1]];
t2 = RepeatedTiming[Inverse[myMat]][[1]];
m2 = MemoryInUse;

t2/t1

5.*10^1

m2 - m1

167088

Clear@myMat

MemoryInUse - m1

10480

And we see the caching got us a 50x speed-up but once the original matrix was cleared, the cached memory was free.

Fast properties without memory leaks, thanks to Jason B.

share|improve this answer

edited 1 hour ago

J. M. is computer-less♦

94.9k10294454

answered 4 hours ago

b3m2a1

24.9k254147

add a comment | 

up vote
3
down vote

The answer is a definitive yes, if you're willing to work with the new Language`ExpressionStore. This goes hand-in-hand with the Language`MutationHandler stuff to allow us to finally do custom OOP in Mathematica without any odd tricks.

if you just want to play with this scroll down to the example section

Basic Idea

But for the problem at hand, this is actually very simple. We simply make property-store:

$propStore=Language`NewExpressionStore["<PropertyStore>"];

Then we use the get-put-remove interface on this:

containsQ[x_]:=
 $propStore@"containsQ"[x];
containsQ[x_, p_]:=
 $propStore@"containsQ"[x, p];
(* ::Subsubsection::Closed:: *)
(*get*)
get[x_, p_]:=
 $propStore@"get"[x, p];
(* ::Subsubsection::Closed:: *)
(*set*)
set[x_, p_, v_]:=
 $propStore@"put"[x, p ,v];
(* ::Subsubsection::Closed:: *)
(*remove*)
remove[x_]:=
 $propStore@"remove"[x];
(* ::Subsubsection::Closed:: *)
(*keys*)
keys:=
 $propStore@"getKeys";
keys[x_]:=
 $propStore@"getKeys"[x];
(* ::Subsubsection::Closed:: *)
(*list*)
list:=
 $propStore@"listTable";

And now we can use this naturally as a property set/get mechanism.

Fun Example

I put this all into a little package that imitates the syntax of Property and friends. Load this from GitHub:

Get["https://github.com/b3m2a1/mathematica-tools/raw/master/Props.m"]

then we'll define a function that caches results in a memory cheap way:

cachedCompute[m_, p_, fn_] :=
 Replace[PropVal[m, p], 
 Missing["PropertyAbsent", p] :>
 With[val = fn[m], 
 SetProp[m, p -> val];
 val
 ]
 ]

Module[,
 (* I do this to avoid $HistoryLength *)
 m1 = MemoryInUse;
 myMat = RandomReal[, 100, 100];
 m1
 ];

t1 = RepeatedTiming[cachedCompute[myMat, "Inverse", Inverse]][[1]];
t2 = RepeatedTiming[Inverse[myMat]][[1]];
m2 = MemoryInUse;

t2/t1

5.*10^1

m2 - m1

167088

Clear@myMat

MemoryInUse - m1

10480

And we see the caching got us a 50x speed-up but once the original matrix was cleared, the cached memory was free.

Fast properties without memory leaks, thanks to Jason B.

share|improve this answer

edited 1 hour ago

J. M. is computer-less♦

94.9k10294454

answered 4 hours ago

b3m2a1

24.9k254147

add a comment | 

up vote
3
down vote

up vote
3
down vote

The answer is a definitive yes, if you're willing to work with the new Language`ExpressionStore. This goes hand-in-hand with the Language`MutationHandler stuff to allow us to finally do custom OOP in Mathematica without any odd tricks.

if you just want to play with this scroll down to the example section

Basic Idea

But for the problem at hand, this is actually very simple. We simply make property-store:

$propStore=Language`NewExpressionStore["<PropertyStore>"];

Then we use the get-put-remove interface on this:

containsQ[x_]:=
 $propStore@"containsQ"[x];
containsQ[x_, p_]:=
 $propStore@"containsQ"[x, p];
(* ::Subsubsection::Closed:: *)
(*get*)
get[x_, p_]:=
 $propStore@"get"[x, p];
(* ::Subsubsection::Closed:: *)
(*set*)
set[x_, p_, v_]:=
 $propStore@"put"[x, p ,v];
(* ::Subsubsection::Closed:: *)
(*remove*)
remove[x_]:=
 $propStore@"remove"[x];
(* ::Subsubsection::Closed:: *)
(*keys*)
keys:=
 $propStore@"getKeys";
keys[x_]:=
 $propStore@"getKeys"[x];
(* ::Subsubsection::Closed:: *)
(*list*)
list:=
 $propStore@"listTable";

And now we can use this naturally as a property set/get mechanism.

Fun Example

I put this all into a little package that imitates the syntax of Property and friends. Load this from GitHub:

Get["https://github.com/b3m2a1/mathematica-tools/raw/master/Props.m"]

then we'll define a function that caches results in a memory cheap way:

cachedCompute[m_, p_, fn_] :=
 Replace[PropVal[m, p], 
 Missing["PropertyAbsent", p] :>
 With[val = fn[m], 
 SetProp[m, p -> val];
 val
 ]
 ]

Module[,
 (* I do this to avoid $HistoryLength *)
 m1 = MemoryInUse;
 myMat = RandomReal[, 100, 100];
 m1
 ];

t1 = RepeatedTiming[cachedCompute[myMat, "Inverse", Inverse]][[1]];
t2 = RepeatedTiming[Inverse[myMat]][[1]];
m2 = MemoryInUse;

t2/t1

5.*10^1

m2 - m1

167088

Clear@myMat

MemoryInUse - m1

10480

And we see the caching got us a 50x speed-up but once the original matrix was cleared, the cached memory was free.

Fast properties without memory leaks, thanks to Jason B.

share|improve this answer

edited 1 hour ago

J. M. is computer-less♦

94.9k10294454

answered 4 hours ago

b3m2a1

24.9k254147

The answer is a definitive yes, if you're willing to work with the new Language`ExpressionStore. This goes hand-in-hand with the Language`MutationHandler stuff to allow us to finally do custom OOP in Mathematica without any odd tricks.

if you just want to play with this scroll down to the example section

Basic Idea

But for the problem at hand, this is actually very simple. We simply make property-store:

$propStore=Language`NewExpressionStore["<PropertyStore>"];

Then we use the get-put-remove interface on this:

containsQ[x_]:=
 $propStore@"containsQ"[x];
containsQ[x_, p_]:=
 $propStore@"containsQ"[x, p];
(* ::Subsubsection::Closed:: *)
(*get*)
get[x_, p_]:=
 $propStore@"get"[x, p];
(* ::Subsubsection::Closed:: *)
(*set*)
set[x_, p_, v_]:=
 $propStore@"put"[x, p ,v];
(* ::Subsubsection::Closed:: *)
(*remove*)
remove[x_]:=
 $propStore@"remove"[x];
(* ::Subsubsection::Closed:: *)
(*keys*)
keys:=
 $propStore@"getKeys";
keys[x_]:=
 $propStore@"getKeys"[x];
(* ::Subsubsection::Closed:: *)
(*list*)
list:=
 $propStore@"listTable";

And now we can use this naturally as a property set/get mechanism.

Fun Example

I put this all into a little package that imitates the syntax of Property and friends. Load this from GitHub:

Get["https://github.com/b3m2a1/mathematica-tools/raw/master/Props.m"]

then we'll define a function that caches results in a memory cheap way:

cachedCompute[m_, p_, fn_] :=
 Replace[PropVal[m, p], 
 Missing["PropertyAbsent", p] :>
 With[val = fn[m], 
 SetProp[m, p -> val];
 val
 ]
 ]

Module[,
 (* I do this to avoid $HistoryLength *)
 m1 = MemoryInUse;
 myMat = RandomReal[, 100, 100];
 m1
 ];

t1 = RepeatedTiming[cachedCompute[myMat, "Inverse", Inverse]][[1]];
t2 = RepeatedTiming[Inverse[myMat]][[1]];
m2 = MemoryInUse;

t2/t1

5.*10^1

m2 - m1

167088

Clear@myMat

MemoryInUse - m1

10480

And we see the caching got us a 50x speed-up but once the original matrix was cleared, the cached memory was free.

Fast properties without memory leaks, thanks to Jason B.

share|improve this answer

edited 1 hour ago

J. M. is computer-less♦

94.9k10294454

answered 4 hours ago

b3m2a1

24.9k254147

share|improve this answer

share|improve this answer

edited 1 hour ago

J. M. is computer-less♦

94.9k10294454

edited 1 hour ago

J. M. is computer-less♦

94.9k10294454

edited 1 hour ago

J. M. is computer-less♦

94.9k10294454

94.9k10294454

answered 4 hours ago

b3m2a1

24.9k254147

answered 4 hours ago

b3m2a1

24.9k254147

answered 4 hours ago

b3m2a1

24.9k254147

24.9k254147

add a comment | 

add a comment | 

 

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