Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Support for buffers #55

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Support for buffers #55

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Jump to
Jump to file
Failed to load files.
Diff view
Diff view
82 changes: 46 additions & 36 deletions index.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,7 @@ See the accompanying LICENSE file for terms.

// Generate an internal UID to make the regexp pattern harder to guess.
var UID = Math.floor(Math.random() * 0x10000000000).toString(16);
var PLACE_HOLDER_REGEXP = new RegExp('"@__(F|R|D|M|S)-' + UID + '-(\\d+)__@"', 'g');
var PLACE_HOLDER_REGEXP = new RegExp('"@__(F|R|D|M|S|B)-' + UID + '-(\\d+)__@"', 'g');

var IS_NATIVE_CODE_REGEXP = /\{\s*\[native code\]\s*\}/g;
var IS_PURE_FUNCTION = /function.*?\(/;
Expand Down Expand Up @@ -44,6 +44,7 @@ module.exports = function serialize(obj, options) {
var dates = [];
var maps = [];
var sets = [];
var buffers = [];

// Returns placeholders for functions and regexps (identified by index)
// which are later replaced by their string representation.
Expand Down Expand Up @@ -73,6 +74,10 @@ module.exports = function serialize(obj, options) {
if(origValue instanceof Set) {
return '@__S-' + UID + '-' + (sets.push(origValue) - 1) + '__@';
}

if (origValue instanceof Buffer) {
return '@__B-' + UID + '-' + (buffers.push(origValue) - 1) + '__@';
}
}

if (type === 'function') {
Expand All @@ -83,40 +88,40 @@ module.exports = function serialize(obj, options) {
}

function serializeFunc(fn) {
var serializedFn = fn.toString();
if (IS_NATIVE_CODE_REGEXP.test(serializedFn)) {
throw new TypeError('Serializing native function: ' + fn.name);
}

// pure functions, example: {key: function() {}}
if(IS_PURE_FUNCTION.test(serializedFn)) {
return serializedFn;
}

// arrow functions, example: arg1 => arg1+5
if(IS_ARROW_FUNCTION.test(serializedFn)) {
return serializedFn;
}

var argsStartsAt = serializedFn.indexOf('(');
var def = serializedFn.substr(0, argsStartsAt)
.trim()
.split(' ')
.filter(function(val) { return val.length > 0 });

var nonReservedSymbols = def.filter(function(val) {
return RESERVED_SYMBOLS.indexOf(val) === -1
});

// enhanced literal objects, example: {key() {}}
if(nonReservedSymbols.length > 0) {
return (def.indexOf('async') > -1 ? 'async ' : '') + 'function'
+ (def.join('').indexOf('*') > -1 ? '*' : '')
+ serializedFn.substr(argsStartsAt);
}

// arrow functions
return serializedFn;
var serializedFn = fn.toString();
if (IS_NATIVE_CODE_REGEXP.test(serializedFn)) {
throw new TypeError('Serializing native function: ' + fn.name);
}

// pure functions, example: {key: function() {}}
if(IS_PURE_FUNCTION.test(serializedFn)) {
return serializedFn;
}

// arrow functions, example: arg1 => arg1+5
if(IS_ARROW_FUNCTION.test(serializedFn)) {
return serializedFn;
}

var argsStartsAt = serializedFn.indexOf('(');
var def = serializedFn.substr(0, argsStartsAt)
.trim()
.split(' ')
.filter(function(val) { return val.length > 0 });

var nonReservedSymbols = def.filter(function(val) {
return RESERVED_SYMBOLS.indexOf(val) === -1
});

// enhanced literal objects, example: {key() {}}
if(nonReservedSymbols.length > 0) {
return (def.indexOf('async') > -1 ? 'async ' : '') + 'function'
+ (def.join('').indexOf('*') > -1 ? '*' : '')
+ serializedFn.substr(argsStartsAt);
}

// arrow functions
return serializedFn;
}

var str;
Expand All @@ -142,7 +147,7 @@ module.exports = function serialize(obj, options) {
str = str.replace(UNSAFE_CHARS_REGEXP, escapeUnsafeChars);
}

if (functions.length === 0 && regexps.length === 0 && dates.length === 0 && maps.length === 0 && sets.length === 0) {
if (functions.length === 0 && regexps.length === 0 && dates.length === 0 && maps.length === 0 && sets.length === 0 && buffers.length === 0) {
return str;
}

Expand All @@ -166,6 +171,11 @@ module.exports = function serialize(obj, options) {
return "new Set(" + serialize(Array.from(sets[valueIndex].values()), options) + ")";
}

if (type === 'B') {
return "Buffer.from(" + serialize(Array.from(buffers[valueIndex].values()), options) + ")";
}


var fn = functions[valueIndex];

return serializeFunc(fn);
Expand Down