From 7fe503f75e13f1d5dfef2c0763e8419c4ebe68d1 Mon Sep 17 00:00:00 2001
From: Markus Hauru <markus@mhauru.org>
Date: Thu, 19 Nov 2020 18:50:15 +0100
Subject: [PATCH] Remove out-of-date todos

---
 src/binarylayer.jl         | 1 -
 src/modifiedbinarylayer.jl | 6 +++++-
 src/ternarylayer.jl        | 1 -
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/binarylayer.jl b/src/binarylayer.jl
index 611ddb1..8549ff9 100644
--- a/src/binarylayer.jl
+++ b/src/binarylayer.jl
@@ -276,7 +276,6 @@ function ascend_right(op::ChargedBinaryOperator, layer::BinaryLayer)
     return scaled_op
 end
 
-# TODO Figure out how to deal with the extra charge legs in the case of anyonic tensors.
 function ascend_left(op::BinaryOperator, layer::BinaryLayer)
     u, w = layer
     @planar(
diff --git a/src/modifiedbinarylayer.jl b/src/modifiedbinarylayer.jl
index 7e57a24..e3b73b4 100644
--- a/src/modifiedbinarylayer.jl
+++ b/src/modifiedbinarylayer.jl
@@ -167,7 +167,8 @@ function randomlayer(
     # We make the initial guess be reflection symmetric, since that's often true of the
     # desired MERA too (at least if random_disentangler is false, but we do it every time
     # any way).
-    # TODO For anyons, should there be a twist on the top leg too?
+    # TODO For anyons, should there be a twist on the top leg too, and does the braid make
+    # sense?
     wr = braid(wl, (1, 2, 3), (2, 1), (3,); copy = true)
     u = initialize_disentangler(T, Vout, Vint, random_disentangler)
     return ModifiedBinaryLayer(u, wl, wr)
@@ -295,6 +296,7 @@ end
 
 # TODO Think about how to best remove the code duplication of having the separate methods
 # for ordinary, charged, and double charged operators.
+# Operators without charge legs.
 function ascend_left(op::ModifiedBinaryOp{T}, layer::ModifiedBinaryLayer) where {
     T <: SquareTensorMap{2}
 }
@@ -361,6 +363,7 @@ function ascend_between(op::ModifiedBinaryOp{T}, layer::ModifiedBinaryLayer) whe
     return scaled_op
 end
 
+# Operators with one charge leg.
 function ascend_left(op::ModifiedBinaryOp{T}, layer::ModifiedBinaryLayer) where {
     S1, T <: AbstractTensorMap{S1, 2, 3}
 }
@@ -427,6 +430,7 @@ function ascend_between(op::ModifiedBinaryOp{T}, layer::ModifiedBinaryLayer) whe
     return scaled_op
 end
 
+# Operators with two charge legs.
 function ascend_left(op::ModifiedBinaryOp{T}, layer::ModifiedBinaryLayer) where {
     S1, T <: AbstractTensorMap{S1, 2, 4}
 }
diff --git a/src/ternarylayer.jl b/src/ternarylayer.jl
index bb7dff6..db48920 100644
--- a/src/ternarylayer.jl
+++ b/src/ternarylayer.jl
@@ -305,7 +305,6 @@ function ascend_mid(op::ChargedTernaryOperator, layer::TernaryLayer)
     return scaled_op
 end
 
-# TODO Figure out how to deal with the extra charge legs in the case of anyonic tensors.
 function ascend_left(op::TernaryOperator, layer::TernaryLayer)
     u, w = layer
     # Cost: 2X^8 + 2X^7 + 2X^6