Previously Psalm would assume that any variable it sees in the arrow
function body is defined (and mixed, if it's not available in the outer
scope). This prevented undefined variable detection. Dropping that
assumption allows it to work.
Fixesvimeo/psalm#5331
* Add documention to LSP
Add descriptions for all Classes, Functions, Methods, Class Constants for LSP methods for Hover, SignatureInformation and Completions
* Descriptions for class name completions
* PHPCS
* Fix docblock being overriden
* Remove trailing comma in args
* Add description to function param before early `continue`
* Update php-language-server-protocol to 1.5
* Break up long array docblocks
* Break up docblock onto newline
Co-authored-by: Matthew Brown <github@muglug.com>
* Fix#4240 - allow type aliases to be used as type parameters
* Fix issues that phpcs found
* Fix#4240 - stop type aliases being everywhere in the same file
* Fix #4240- re-add stuff that was deleted unnecessarily
When checking code like the following:
```
<?php
function checkNegated(string $key): void {
$arr = [
0 => "foo",
1 => "bar",
];
if (!array_key_exists($key, $arr)) {
printf("not found\n");
}
}
function check(string $key): void {
$arr = [
0 => "foo",
1 => "bar",
];
if (array_key_exists($key, $arr)) {
printf("found\n");
}
}
```
the `if` in `checkNegated` would cause:
```
ERROR: RedundantCondition - 9:10 - Type string for $key is never =int(0)
```
This happens when the array keys are all int literals, but the "needle"
is a string.
`array_key_exists()` uses a loose equality comparison, but the generated
assertions for this specific case
(`AssertionFinder::getArrayKeyExistsAssertions`) was generating strict
equality clauses. This commit fixes it by changing the generated clause
from `=` to `~`.
* Add completions for functions
Provide autocompletions in the LSP for all global functions and functions from namespaces used in the current context.
* Uncomment code
* PHPCS
* Simplify functions map
Co-authored-by: Matthew Brown <github@muglug.com>
* Switch to storing lowercase function string in array key
* Fix spacing
Co-authored-by: Matthew Brown <github@muglug.com>
