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Explore using ST for effects (issue #24) #33

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merged 11 commits into from
Mar 10, 2019
Merged

Explore using ST for effects (issue #24) #33

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a4a7797
Split into immutable buffers and Effect/ST buffer types.
Dretch Dec 23, 2018
efcd6a4
Move mutable buffer functions into a typeclass.
Dretch Dec 28, 2018
9b48b29
Add Monad constraint and rename type variables on MutableBuffer class.
Dretch Jan 5, 2019
398aad5
Make slice a safe method, and delete the Unsafe module.
Dretch Jan 5, 2019
fec1805
Add unsafeFreeze and unsafeThaw methods to MutableBuffer.
Dretch Jan 5, 2019
a71708d
Remove some unnecessary type assertions from the tests, and fix testFill
Dretch Jan 6, 2019
487e409
Re-arrange the modules to keep backwards compatibility with master.
Dretch Jan 6, 2019
206bd4e
Rename some internal methods for clarity (Frozen => Immutable)
Dretch Jan 6, 2019
18cc642
Fix incorrect comment.
Dretch Jan 13, 2019
f5483d3
Give MutableBuffer and it's instances a module of their own each.
Dretch Jan 13, 2019
7a48e33
Simplify `forall h a. ST h a -> Effect a` function.
Dretch Jan 13, 2019
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7 changes: 5 additions & 2 deletions bower.json
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Original file line number Diff line number Diff line change
Expand Up @@ -15,11 +15,14 @@
"dependencies": {
"purescript-effect": "^2.0.0",
"purescript-maybe": "^4.0.0",
"purescript-arraybuffer-types": "^2.0.0"
"purescript-arraybuffer-types": "^2.0.0",
"purescript-st": "^4.0.0",
"purescript-unsafe-coerce": "^4.0.0"
},
"devDependencies": {
"purescript-assert": "^4.0.0",
"purescript-console": "^4.1.0",
"purescript-foldable-traversable": "^4.0.0"
"purescript-foldable-traversable": "^4.0.0",
"purescript-proxy": "^3.0.0"
}
}
161 changes: 44 additions & 117 deletions src/Node/Buffer.js
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Original file line number Diff line number Diff line change
Expand Up @@ -5,44 +5,53 @@

exports.showImpl = require('util').inspect;

exports.create = function (size) {
return function() {
return Buffer.alloc(size);
exports.eqImpl = function(a) {
return function(b) {
return a.equals(b);
}
};

exports.compareImpl = function(a) {
return function (b) {
return a.compare(b);
};
}

exports.create = function (size) {
return Buffer.alloc(size);
};

exports.fromArray = function (octets) {
return function() {
return Buffer.from(octets);
};
return Buffer.from(octets);
};

exports.fromStringImpl = function (str) {
return function (encoding) {
return function() {
return Buffer.from(str, encoding);
};
};
exports.size = function (buff) {
return buff.length;
};

exports.fromArrayBuffer = function(ab) {
return function() {
return Buffer.from(ab);
};
exports.toArray = function (buff) {
var json = buff.toJSON()
return json.data || json;
};

exports.toArrayBuffer = function(buff) {
return function() {
return buff.buffer.slice(buff.byteOffset, buff.byteOffset + buff.byteLength);
return buff.buffer.slice(buff.byteOffset, buff.byteOffset + buff.byteLength);
};

exports.fromArrayBuffer = function(ab) {
return Buffer.from(ab);
};

exports.fromStringImpl = function (str) {
return function (encoding) {
return Buffer.from(str, encoding);
};
};

exports.readImpl = function (ty) {
return function (offset) {
return function (buf) {
return function() {
return buf['read' + ty](offset);
};
return buf['read' + ty](offset);
};
};
};
Expand All @@ -51,126 +60,44 @@ exports.readStringImpl = function (enc) {
return function (start) {
return function (end) {
return function (buff) {
return function() {
return buff.toString(enc, start, end);
};
return buff.toString(enc, start, end);
};
};
};
};

exports.toStringImpl = function (enc) {
return function (buff) {
return function() {
return buff.toString(enc);
};
};
};

exports.writeImpl = function (ty) {
return function (value) {
return function (offset) {
return function (buf) {
return function() {
buf['write' + ty](value, offset);
return {};
}
};
};
};
};

exports.writeStringImpl = function (encoding) {
return function (offset) {
return function (length) {
return function (value) {
return function (buff) {
return function() {
return buff.write(value, offset, length, encoding);
}
};
};
};
};
};

exports.toArray = function (buff) {
return function() {
var json = buff.toJSON()
return json.data || json;
};
};

exports.getAtOffsetImpl = function (just) {
return function (nothing) {
return function (offset) {
return function (buff) {
return function() {
var octet = buff[offset];
return octet == null ? nothing
: just(octet);
};
var octet = buff[offset];
return octet == null ? nothing
: just(octet);
};
};
};
};

exports.setAtOffset = function (value) {
return function (offset) {
return function (buff) {
return function() {
buff[offset] = value;
return {};
};
};
exports.toStringImpl = function (enc) {
return function (buff) {
return buff.toString(enc);
};
};

exports.size = function (buff) {
return function() {
return buff.length;
exports.slice = function (start) {
return function (end) {
return function (buff) {
return buff.slice(start, end);
};
};
};



exports.concat = function (buffs) {
return function() {
return Buffer.concat(buffs);
};
return Buffer.concat(buffs);
};

exports["concat'"] = function (buffs) {
return function (totalLength) {
return function() {
return Buffer.concat(buffs, totalLength);
};
};
};

exports.copy = function (srcStart) {
return function (srcEnd) {
return function (src) {
return function (targStart) {
return function (targ) {
return function() {
return src.copy(targ, targStart, srcStart, srcEnd);
};
};
};
};
};
};

exports.fill = function (octet) {
return function (start) {
return function (end) {
return function (buf) {
return function() {
buf.fill(octet, start, end);
return {};
};
};
};
return Buffer.concat(buffs, totalLength);
};
};
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