path: root/src/analyzer.js

//"use strict";

// Analyze intertype data. Calculates things that are necessary in order
// to do the final conversion into JavaScript later, for example,
// properties of variables, loop structures of functions, etc.

var VAR_NATIVE = 'native';
var VAR_NATIVIZED = 'nativized';
var VAR_EMULATED = 'emulated';

var ENTRY_IDENT = toNiceIdent('%0');

function cleanFunc(func) {
  func.lines = func.lines.filter(function(line) { return line.intertype !== null });
  func.labels.forEach(function(label) {
    label.lines = label.lines.filter(function(line) { return line.intertype !== null });
  });
}

// Handy sets

var BRANCH_INVOKE = set('branch', 'invoke');
var SIDE_EFFECT_CAUSERS = set('call', 'invoke', 'atomic');

// Analyzer

function analyzer(data, sidePass) {
  var mainPass = !sidePass;

  // Substrate
  var substrate = new Substrate('Analyzer');

  // Sorter
  substrate.addActor('Sorter', {
    processItem: function(item) {
      item.items.sort(function (a, b) { return a.lineNum - b.lineNum });
      this.forwardItem(item, 'Gatherer');
    }
  });

  // Gatherer
  substrate.addActor('Gatherer', {
    processItem: function(item) {
      // Single-liners
      ['globalVariable', 'functionStub', 'unparsedFunction', 'unparsedGlobals', 'unparsedTypes', 'alias'].forEach(function(intertype) {
        var temp = splitter(item.items