Renaming + Certora adjustments

.github/workflows/certora.yml

@@ -9,10 +9,10 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        nst:
-          - nst
-          - nst-join
-          - dai-nst
+        usds:
+          - usds
+          - usds-join
+          - dai-usds
 
     steps:
       - name: Checkout
@@ -38,7 +38,7 @@ jobs:
       - name: Install Certora
         run: pip3 install certora-cli-beta
 
-      # - name: Verify ${{ matrix.nst }}
-        # run: make certora-${{ matrix.nst }}
-        # env:
-        #   CERTORAKEY: ${{ secrets.CERTORAKEY }}
+      - name: Verify ${{ matrix.usds }}
+        run: make certora-${{ matrix.usds }}
+        env:
+          CERTORAKEY: ${{ secrets.CERTORAKEY }}

Makefile

@@ -1,4 +1,4 @@
 PATH := ~/.solc-select/artifacts/solc-0.8.21:~/.solc-select/artifacts:$(PATH)
-certora-nst      :; PATH=${PATH} certoraRun certora/Nst.conf$(if $(rule), --rule $(rule),)
-certora-nst-join :; PATH=${PATH} certoraRun certora/NstJoin.conf$(if $(rule), --rule $(rule),)
-certora-dai-nst  :; PATH=${PATH} certoraRun certora/DaiNst.conf$(if $(rule), --rule $(rule),)
+certora-usds      :; PATH=${PATH} certoraRun certora/Usds.conf$(if $(rule), --rule $(rule),)
+certora-usds-join :; PATH=${PATH} certoraRun certora/UsdsJoin.conf$(if $(rule), --rule $(rule),)
+certora-dai-usds  :; PATH=${PATH} certoraRun certora/DaiUsds.conf$(if $(rule), --rule $(rule),)

README.md

@@ -1,30 +1,30 @@
-# NST Token and contracts associated
+# USDS Token and contracts associated
 
 This repository includes 3 smart contracts:
 
-- NST token
-- NstJoin
-- DaiNst Converter
+- USDS token
+- UsdsJoin
+- DaiUsds Converter
 
-### NST token
+### USDS token
 
 This is a standard erc20 implementation with regular `permit` functionality + EIP-1271 smart contract signature validation.
 
 The token uses the ERC-1822 UUPS pattern for upgradeability and the ERC-1967 proxy storage slots standard.
-It is important that the `NstDeploy` library sequence be used for deploying the token.
+It is important that the `UsdsDeploy` library sequence be used for deploying the token.
 
 #### OZ upgradeability validations
 
 The OZ validations can be run alongside the existing tests:  
 `VALIDATE=true forge test --ffi --build-info --extra-output storageLayout`
 
-### NstJoin
+### UsdsJoin
 
 This is the contract in charge of `mint`ing the erc20 IOUs in exchange of native `vat.dai` balance. It also manages the reverse operation, `burn`ing tokens and releasing `vat.dai`.
 A noticeable code difference against `DaiJoin` is this contract doesn't have any permissions system at all.
-However, in practice, `NstJoin` acts the exact same way as the production `DaiJoin` implementation. This is because there isn't any `wards(address)` set there.
+However, in practice, `UsdsJoin` acts the exact same way as the production `DaiJoin` implementation. This is because there isn't any `wards(address)` set there.
 
-### DaiNst
+### DaiUsds
 
-It is a permissionless converter between `Dai` and `Nst` (both ways). Using the `public` functions of `NstJoin` and `DaiJoin` moves from one token to the other. The exchange rate is 1:1.
+It is a permissionless converter between `Dai` and `Usds` (both ways). Using the `public` functions of `UsdsJoin` and `DaiJoin` moves from one token to the other. The exchange rate is 1:1.
 It is just a "convenience" contract, users could still get the same outcome executing the separate methods in the `join`s or use any other converter implementation.

certora/DaiJoinMock.sol

@@ -1,7 +1,7 @@
 pragma solidity ^0.8.21;
 
-import "../src/NstJoin.sol";
+import "../src/UsdsJoin.sol";
 
-contract DaiJoinMock is NstJoin {
-    constructor(address vat_, address dai_) NstJoin(vat_, dai_) {}
+contract DaiJoinMock is UsdsJoin {
+    constructor(address vat_, address dai_) UsdsJoin(vat_, dai_) {}
 }

certora/DaiMock.sol

@@ -1,7 +1,7 @@
 pragma solidity ^0.8.21;
 
-import "../src/Nst.sol";
+import "../src/Usds.sol";
 
-contract DaiMock is Nst {
+contract DaiMock is Usds {
 
 }

certora/DaiNst.conf → certora/DaiUsds.conf

@@ -1,33 +1,33 @@
 {
     "files": [
-        "src/DaiNst.sol",
-        "src/NstJoin.sol",
-        "src/Nst.sol",
+        "src/DaiUsds.sol",
+        "src/UsdsJoin.sol",
+        "src/Usds.sol",
         "certora/DaiJoinMock.sol",
         "certora/DaiMock.sol",
         "certora/VatMock.sol",
     ],
     "link": [
-        "DaiNst:nstJoin=NstJoin",
-        "DaiNst:nst=Nst",
-        "DaiNst:daiJoin=DaiJoinMock",
-        "DaiNst:dai=DaiMock",
-        "NstJoin:nst=Nst",
-        "NstJoin:vat=VatMock",
-        "DaiJoinMock:nst=DaiMock",
+        "DaiUsds:usdsJoin=UsdsJoin",
+        "DaiUsds:usds=Usds",
+        "DaiUsds:daiJoin=DaiJoinMock",
+        "DaiUsds:dai=DaiMock",
+        "UsdsJoin:usds=Usds",
+        "UsdsJoin:vat=VatMock",
+        "DaiJoinMock:usds=DaiMock",
         "DaiJoinMock:vat=VatMock"
     ],
     "rule_sanity": "basic",
     "solc": "solc-0.8.21",
     "solc_optimize_map": {
-        "DaiNst": "200",
-        "NstJoin": "200",
-        "Nst": "200",
+        "DaiUsds": "200",
+        "UsdsJoin": "200",
+        "Usds": "200",
         "DaiJoinMock": "0",
         "DaiMock": "0",
         "VatMock": "0"
     },
-    "verify": "DaiNst:certora/DaiNst.spec",
+    "verify": "DaiUsds:certora/DaiUsds.spec",
     "prover_args": [
         "-mediumTimeout 180"
     ],