* Add polymorphism to syntax tree and parser
* Add polymorphism to infer types
* Fix pretty printing
* Add new tests and fix old tests
* Fix the comparison between unit and empty tuple
* Report undefined interface errors before checking implemented interfaces
* Add test for implementing multiple interfaces
* Add test for implementing two interfaces with entrypoints of same names and different types
* Add tests for interfaces implementing interfaces
* Draft: Add variance switching
* Revert "Draft: Add variance switching"
This reverts commit 92dc6ac169cfbff447ed59de04994f564876b3fb.
* Add variance switching
* Fix broken tests
* Fix broken abi tests
* Add tests for variance switching
* Fix tests after rebase
* Variance switching for custom datatypes
* Fix dialyzer warning
* Add testing for custom types variance switching
* Make opposite_variance a separate function
* Make is_subtype/4 a separate function
* Fix warning
* Mark tvars as invariant
* Add type_vars_uvar ets table to ets_tables()
* Don't destroy and recreate type errors table when not needed
* Fixes from the reviews
* Use is_list to check if a var is a list
* Compare named args in fun_t
* Test only for covariance and contravariance
* Remove arrows_in_type and use infer_type_vars_variance instead
* Add tests for option and type aliases
* Fix previous commit
* Rename check_implemented_interfaces_recursive to check_implemented_interfaces1
* Make interfaces declare functions from extended interfaces
* Restore test.aes
* Add test for variance switching in records
* Enable variance switching for record types
* Handle builtin types type variables separately
* Add tests for oracles and oracle queries
* Replace compare_types with non-throwing version of unify
* Add the context to unification error
* Test variance switching for bivariant records
* Give clear names to the records in records variance switching test
* Handle comments about polymorphism_variance_switching.aes
* Rename datatypes in custom types variance switching test for readability
* Change the variance of the oracle_query type vars
* Add test for accessing maps with the wrong type
* Default to invariant when the variance of the type vars is unknown
* Rename test files to have common prefix
* Rename functions in variance switching tests for readability
* Fix variance inference
* Eliminate redundant tests
* Test all cases for bivariant
* Add compiler warnings
Add include_type annotation to position
Add warning for unused includes
Add warning for unused stateful annotation
Add warning for unused functions
Add warning for shadowed variables
Add division by zero warning
Add warning for negative spends
Add warning for unused variables
Add warning for unused parameters
Change the ets table type to set for unused vars
Add warning for unused type defs
Move unused variables warning to the top level
Temporarily disable unused functions warnings
Add all kinds of warnings to a single ets table
Enable warnings separately through options
Use when_option instead of enabled_warnings
Turn warnings into type errors with warn_error option
Enable warning package warn_all
Re-enable unused functions warnings
Report warnings as type errors in a separate function
Make unused_function a recognized warning
Report warnings as a result of compilation
Fix tests and error for unknown warnings options
Fix dialyzer warnings
Do not show warning for variables called "_"
Move warnings handling into a separate module
Do not show warning for unused public functions in namespaces
Add src file name to unused include warning
Mark public functions in namespaces as used
Add tests for added warnings
Add warning for unused return value
Add test for turning warnings into type errors
* Update CHANGELOG
* Support for CREATE, CLONE and BYTECODE_HASH
* Add missing files
* Pushed the clone example through the typechecker
* CLONE compiles
* Fix dependent type in CLONE
* Bytecode hash fixes
* Refactor
* Refactor 2
* move some logic away
* Fixed some error messages. Type inference of child contract still does some random shit\n(mistakes arguments with result type)
* CREATE sometimes compiles and sometimes not
* Fix some scoping/constraint issues
* works, needs cleanup
* cleanup
* Fix some tests. Remove optimization of singleton tuples
* Fix default argument for clone
* Cleanup
* CHANGELOG
* Mention void type
* Address review, fix some dialyzer errors
* Please dialyzer
* Fix failing tests
* Write negative tests
* Docs
* TOC
* missing 'the'
* missing 'the'
* missing 'the'
* missing 'the'
* mention pre-fund
* format
* pre-fund clarification
* format
* Grammar in docs
* Allow block with separate type signature and definition of a function
For instance,
```
function
add : (int, int) => int
add(x, y) = x + y
```
cc #196
* Allow pattern matching in left-hand sides
* Changelog
* Fix type spec
* partial case-on-constructor
* Changelog for pattern-matching lets
