browser.js
// Entry point for browserify.
'use strict';
var _ = require('underscore');
var fs = require('fs');
var esprima = require('esprima');
var escodegen = require('escodegen');
var webppl = require('./main');
var optimize = require('./transforms/optimize').optimize;
var naming = require('./transforms/naming').naming;
var thunkify = require('./syntax').thunkify;
var cps = require('./transforms/cps').cps;
var errors = require('./errors/browser');
var util = require('./util');
// These are populated by the bundle.js browserify transform.
var version = '';
var packages = [];
var load = _.once(function() {
// Load JS and headers from packages.
packages.forEach(function(pkg) {
if (pkg.js) { global[pkg.js.identifier] = pkg.js.path; }
pkg.headers.forEach(webppl.requireHeaderWrapper);
});
var bundles = webppl.parsePackageCode(packages);
return bundles;
});
function prepare(codeAndAssets, k, options) {
options = util.mergeDefaults(options, {
filename: 'webppl:program',
errorHandlers: []
});
var extraHandlers = options.debug ? [errors.debugHandler(options.filename)] : [];
options.errorHandlers = extraHandlers.concat(options.errorHandlers);
return webppl.prepare(codeAndAssets, k, options);
}
function run(code, k, options) {
var codeAndAssets = compile(code, options);
prepare(codeAndAssets, k, options).run();
}
function compile(code, options) {
options = options || {};
var optionsExtended = _.extend({bundles: load()}, options);
return webppl.compile(code, optionsExtended);
}
function webpplCPS(code) {
var programAst = esprima.parse(code);
var newProgramAst = optimize(cps(thunkify(programAst)));
return escodegen.generate(newProgramAst);
}
function webpplNaming(code) {
var programAst = esprima.parse(code);
var newProgramAst = naming(thunkify(programAst)).ast;
return escodegen.generate(newProgramAst);
}
global.webppl = {
prepare: prepare,
run: run,
compile: compile,
cps: webpplCPS,
naming: webpplNaming,
version: version,
packages: packages
};