static void generateLet(
final Tree.LetExpression that, final Set<Declaration> directs, final GenerateJsVisitor gen) {
gen.out("function(){var ");
boolean first = true;
HashSet<Declaration> decs2 = new HashSet<>();
for (Tree.Statement st : that.getLetClause().getVariables()) {
if (!first) gen.out(",");
if (st instanceof Tree.Variable) {
final Tree.Variable var = (Tree.Variable) st;
gen.out(gen.getNames().name(var.getDeclarationModel()), "=");
var.getSpecifierExpression().getExpression().visit(gen);
directs.add(var.getDeclarationModel());
decs2.add(var.getDeclarationModel());
} else if (st instanceof Tree.Destructure) {
final String expvar = gen.getNames().createTempVariable();
gen.out(expvar, "=");
((Tree.Destructure) st).getSpecifierExpression().visit(gen);
decs2.addAll(
new Destructurer(
((Tree.Destructure) st).getPattern(), gen, directs, expvar, false, false)
.getDeclarations());
}
first = false;
}
gen.out(";return ");
gen.visitSingleExpression(that.getLetClause().getExpression());
gen.out("}()");
directs.removeAll(decs2);
}
@Override
public void visit(Tree.Variable that) {
super.visit(that);
if (that.getDeclarationModel() == declaration) {
specify();
}
}