* migrate nullish coalescing commit
* add more test case
* add branch type check test
* add more tests
* fix nullish precedence
* update public api
* add rescan question question token to fix regression
* update public api baseline
* Added tests that emit for nullish coalescing operator conforming with grammar restrictions when assertions are used.
* Fixed emit to hoist temporary variables (they previously went undeclared).
Added tests to ensure calls and property accesses are only called once.
* use not equal to null
* rename factory
* add grammar check
* fix more cases
* Fix handling of nullish coalescing oprator in expando objects.
* Fixed classifier to support ?? operator.
* update baseline
* accept baseline
* fix review
* update emitter and more testcase
* update control flow
* make linter happy
* update libs
* avoid unnecessary assert
* fix typooo
* Fixes for control-flow analysis
* Add support for Optional Chaining
* Add grammar error for invalid tagged template, more tests
* Prototype
* PR feedback
* Add errors for invalid assignments and a trailing '?.'
* Add additional signature help test, fix lint warnings
* Fix to insert text for completions
* Add initial control-flow analysis for optional chains
* PR Feedback and more tests
* Update to control flow
* Remove mangled smart quotes in comments
* Fix lint, PR feedback
* Updates to control flow
* Switch to FlowCondition for CFA of optional chains
* Fix ?. insertion for completions on type variables
* Accept API baseline change
* Clean up types
* improve control-flow debug output
* Revert Debug.formatControlFlowGraph helper
* Disallow property/accessor overrides
Unless the base property or accessor is abstract
* Disallow uninitialised property overrides
This causes quite a few test breaks. We'll probably want to revert many
of them by switching to the upcoming `declare x: number` syntax.
* Updates from design review + fix ancient bug
1. Don't error when overriding properties from interfaces.
2. Fix error when overriding methods with other things. This had no
tests so I assume that the code was always dead and never worked.
* Need to add a couple of errors and squash one
Will update after checking out other branch for a minute
* Everything works so far
Need to test properties initialised in constructor
* Check for constructor initialisation
* change error wording
* Improve error wording
* Add codefix to add missing 'declare'
* Always emit accessors in .d.ts files
* Allow 'declare' on any uninitialised property decl
* Undo code moves
* Let sleeping dogs lie
* Correctly set NodeFlags.Ambient
And simplify redundant parts of check.
* Remove more unneeded code
* Update baselines
* Update baselines
* Update baselines
* Ignore this-property assignments
* Fix base-in-interface check
* Do not error when base parent is interface
* Fix base interface check
* Add missed baselines
* Fix check
* Fix new errors in services
* Fix new errors in services
* Fix errors in testRunner
* Add flag and turn off errors when on
* Structure of new emit is correct, fake content
It is 'hi'.
* Basically right emit
* Fix one last unitialised property declaration
* Haha no I missed another one
* Fix whitespace back to CRLF
* Minor fix and code cleanup
* New test case
* Fix bug in isInitializedProperty
* Updates from design meeting.
1. Change flag name to useDefineForClassFields (and flip polarity).
2. Forbid ES3 + useDefineForClassFields (since there is no
defineProperty).
3. Forbid overriding an abstract property-with-initializer with an
accessor.
* Update baselines
* Object.defineProperty for methods too
Using code from Ron from his upcoming refactor of the factory functions.
* Update slow baselines
* Improve error message
* Update src/compiler/transformers/utilities.ts
Co-Authored-By: Andrew Branch <andrewbranch@users.noreply.github.com>
* Add test of computed properties
* Remove done TODO
Switches the error message emitted by the parser to the more specific _"An enum member name must be followed by a ',' or '='."_ when the expected comma doesn't follow the member.
* Incrementally parse unchanged ambient declarations
* Re-parse modifiers and decorators so as not to skip errors
* Revert unnecessary change
* Undo the test change that was changed 2 years ago
* Add error message for keywords with escapes in them
* Move check into parser during advance to next token to utilize context for contextual keywords
* git add .
* Add tests for extended escapes
* Better error courtesy of @DanielRossenwaser
* Add test of browser-inconsistent case and alter condition to match spec
* Merge adjacent conditions
* Use seperate functions for checking keywords vs not
* Use flags to track unicode escape presence
* Adjust error text
* Remove error on invalid jsdoc tokens
In JSDoc:
1. In the scanner, don't issue an error, even for invalid identifiers.
2. In the binder, don't issue an error for reserved (but otherwise valid)
identifiers.
/**
* Example of 1: "\"
* Example of 2: @private
*/
* Update baselines
* Add invalid unicode escape test for JSDoc
* Add quotes around invalid unicode escape
* Add another unicode escape JSDoc test
* Parse quoted constructors as constructors, not methods
* Update baselines
* Fix disambiguation between quoted constructor and property named constructor
* Clean up parsing a bit
* Support escapes in constructor name
* Update baselines
