readme.md

remappings-test

test repo for dapp remappings that simulates a few interesting cases. The dependency tree looks like this:

.
├── lib
│   ├── ds-auth
│   │   ├── lib
│   │   │   └── ds-test
│   │   │       └── src
│   │   │           └── test.sol
│   │   └── src
│   │       ├── auth.sol
│   │       └── auth.t.sol
│   ├── ds-test
│   │   └── src
│   │       └── test.sol
│   ├── tr0
│   │   ├── lib
│   │   │   └── tr-base@v0
│   │   │       └── src
│   │   │           └── tr-base.sol
│   │   └── src
│   │       └── tr0.sol
│   └── tr1
│       ├── lib
│       │   └── tr-base@v1
│       │       └── src
│       │           └── tr-base.sol
│       └── src
│           └── tr1.sol
└── src
    └── test.t.sol

Diamond Dependencies

We include a test case for the classic diamond dependency problem, where two different packages depend on two different versions of the same package.

tr-base contains a single free function that just returns a string, "v0" or "v1" depending on the version. tr0 and tr1 contain a single contract that calls into different versions of tr-base.

the root remappings-test repo checks that the per-package remappings are correctly applied by checking that the correct string is returned by tr0 and tr1.

Duplicated Packages w./ Multiple Inheritance

We include a test contract that inherits from both DSAuthTest and DSTest. Since DSAuthTest also inherits from DSTest we have two (identical) copies of this contract in the inheritance tree. If these copies of DSTest are not both imported from the same path on disk, solc will not recognise them as identical and so will throw compiler errors due to name clashes.