Ep.getTryLocsList = function()

in packages/transform/src/emit.js [298:331]

• 25 lines of code
• 5 McCabe index (conditional complexity)

Ep.getTryLocsList = function() {
  if (this.tryEntries.length === 0) {
    // To avoid adding a needless [] to the majority of runtime.wrap
    // argument lists, force the caller to handle this case specially.
    return null;
  }

  const t = util.getTypes();
  let lastLocValue = 0;

  return t.arrayExpression(
    this.tryEntries.map(function(tryEntry) {
      let thisLocValue = tryEntry.firstLoc.value;
      assert.ok(thisLocValue >= lastLocValue, "try entries out of order");
      lastLocValue = thisLocValue;

      let ce = tryEntry.catchEntry;
      let fe = tryEntry.finallyEntry;

      let locs = [
        tryEntry.firstLoc,
        // The null here makes a hole in the array.
        ce ? ce.firstLoc : null
      ];

      if (fe) {
        locs[2] = fe.firstLoc;
        locs[3] = fe.afterLoc;
      }

      return t.arrayExpression(locs.map(loc => loc && t.clone(loc)));
    })
  );
};