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Node Ast Inlining is a small (~200 LOC) library that inline and expand function call

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Node Ast Inlining Build Status Gittip

Node Ast Inlining is a small (~200 LOC) library that inline and expand function call

Work In Progress

Node Ast Inlining currently inling only method calls and expand simple function with one return statement.

Installation

This package can be installed via npm as follows

% npm install ast-inlining -g

Usage

var inliner = require('../index')
,   f = {
  testInput: function(data) {
    // Method calls that will be inlined 
    return a._startWith(data.content, 'ipsum') || f._contains(data.name, 'reau') || a._startWith(data.content, 'Lorem');
  },

  _substr: function(where, what) {
    return where.indexOf(what) !== -1;
  },
  _contains: function(where, what) {
    return f._substr(where, ' ' + what + ' ');
  },
  _csstartWith: function(where, what) {
    return where.indexOf(what) === 0;
  }
}
, a = {
  _startWith: function(where, what) {
    return f._csstartWith(where.toLowerCase(), what.toLowerCase());
  }
}

// For now we need to explicitly declare the testInput call context
var context = {f:f, a:a};

f.testInputInlined = inliner.inline_function(f.testInput, context);

console.log(f.testInputInlined.toString());
/*
* function anon_0(data) {
*   return data.content.toLowerCase().indexOf("ipsum".toLowerCase()) === 0 
*     || data.name.indexOf(" reau ") !== -1 
*     || data.content.toLowerCase().indexOf("Lorem".toLowerCase()) === 0;
* }
*/

API

  • inline_function(fct, context [, option]) Inline-expands method calls inside fct given the context
  • inline_ast(ast, context) Inline-expands method calls inside ast given the context

Benchmark

% node bench/bench.js

(chart) 1st try (chart) 2nd try

Tests

% make test

Or

% nodeunit test/*.test.js

TODO

  • extremeInline option for native Date, Number and String's prototype method inlining
  • Inline & expand small function < 10 LOC

Donate

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Licence

Copyright (c) 2011, Francois-Guillaume Ribreau node@fgribreau.com All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

  • Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

  • Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

  • Neither the name of node-ast-inlining nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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