linter | Static Analysis Compiler Plugin for Scala | Code Analyzer library
kandi X-RAY | linter Summary
kandi X-RAY | linter Summary
Linter is a Scala static analysis compiler plugin which adds compile-time checks for various possible bugs, inefficiencies, and style problems.
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QUESTION
I've checked out the main
branch of github.com/Shopify/sarama
(at commit 947343309601b4eb3c2fa3e7d15d701b503dd491
) but I notice that in VS Code I can't "Go to definition" as usual. If I hover over the package name sarama
in functional_consumer_group_test.go
, I get the linter warning
ANSWER
Answered 2022-Apr-08 at 00:39Following https://www.ryanchapin.com/configuring-vscode-to-use-build-tags-in-golang-to-separate-integration-and-unit-test-code/, I had to create a .vscode/settings.json
file in the repository's root directory and add the following contents:
QUESTION
I'm having an issue with the linting for my Vue SPA. I'm using the defineEmits function from the script setup syntactic sugar (https://v3.vuejs.org/api/sfc-script-setup.html). The errors just do not make any sense, does anyone know how to fix this (without disabling these rules for the affected files, because it happens to every usage of defineEmits). The weird thing is that the defineProps function works without errors, which follows the same syntax. Can anyone help me out here?
My linter complains about these errors:
...ANSWER
Answered 2022-Mar-15 at 13:26I did not find an ideal answer, but my current workaround is to use a different defineEmits syntax.
QUESTION
I'm a bit confused about how to manage state withing a StatefulWidget. The following is a simplified example of a problem I am running into:
I have a StatefulWidget
designed to display a list of things. It is constructed with a list that was retrieved from an API. The widget also allows the user to add new items to the list, hitting the API to do so. The API in turn returns the entire list after adding the item.
The challenge I'm running into is that the widget is constructed with an api.List
object. Dart requires StatefulWdiget
s to be immutable (and therefore all of the fields final), and therefore the list cannot be replaced with a new list returned by the API when a user adds an item to it. That part makes sense to me: mutable state should live in the state object, not the widget. So that would suggest that the state object should keep track of the list. That leads to two different problems:
The state object is created in the
createState
method of theStatefulWidget
. If we wanted to pass in the list to the constructor of the state object, the list would need to be stored as a final field on theStatefulWidget
as well. Now both the widget and it's state object would have a reference to the list. As the user adds items to the list, and the state object replaces its list with the new copy returned from the API, the two would be out of sync.Even if you did this, the linter will complain about including logic in the
createState
method: https://dart-lang.github.io/linter/lints/no_logic_in_create_state.html. It appears that they strongly suggest state objects should always have 0-argument constructors and you should never passing anything from theStatefulWidget
to theState
object. They suggest always accessing such data via thewidget
of theState
object. But that leads you back to the problem of theStatefulWidget
being immutable: you won't be able to replace the list if it is a final field on theStatefulWidget
object.
Here, we avoid the linting issue of having logic in the createState
method. But you cannot replace widget.list
with newList
since it is final.
ANSWER
Answered 2022-Mar-29 at 16:01The second snippet is closer the solution. Essentially, nothing makes it necessary for the list
in ListWidget
and the list
in _ListWidgetState
to be in "sync". In fact, the best way to look at it is that the list in the ListWidget
is the initial data and the list in _ListWidgetState
is the updated data, if there is any change made by the user. You can rely upon the data in the second list
as you maintain it when the user makes changes.
QUESTION
I have an existing TypedDict containing multiple entries:
...ANSWER
Answered 2022-Mar-24 at 11:39No, you cannot do this for the same set of fields. Quoting from PEP 589.
The totality flag only applies to items defined in the body of the TypedDict definition. Inherited items won’t be affected, and instead use totality of the TypedDict type where they were defined. This makes it possible to have a combination of required and non-required keys in a single TypedDict type.
It's possible to construct required and non required keys with a single TypedDict type.
QUESTION
Firt of all, I am a total begginner in Rust, I started to use a code analyzer (Mega-Linter) and it made me realize how much I duplicated the same "use" statements in my submodules. Here what my source file tree looks like :
...ANSWER
Answered 2022-Mar-23 at 13:43You can create a ui_prelude
module that contains the use statements as pub use
, and then do just use ui_prelude::*
in your modules:
QUESTION
A static analysis tool I'm using prompts me that I need to std::forward
the argument of the following function down the call chain:
ANSWER
Answered 2022-Mar-21 at 13:17The relevant section is [temp.deduct.call]/1 [emphasis mine]:
Template argument deduction is done by comparing each function template parameter type (call it
P
) that contains template-parameters that participate in template argument deduction with the type of the corresponding argument of the call (call itA
) as described below. If removing references and cv-qualifiers fromP
givesstd::initializer_list
orP′[N]
for someP′
andN
and the argument is a non-empty initializer list ([dcl.init.list]), then deduction is performed instead for each element of the initializer list independently, takingP′
as separate function template parameter typesP′i
and thei
:th initializer element as the corresponding argument. [...]
Meaning [temp.deduct.call]/3 does not apply for a P
that was originally an array reference type (once it reaches /3, /3 applies per element).
However, if we return to the section above we may note that it comes with the restriction
[...] and the argument is a non-empty initializer list [...]
meaning a call, for OP's example function f
, like
QUESTION
I am currently setting up a boilerplate with React, Typescript, styled components, webpack etc. and I am getting an error when trying to run eslint:
Error: Must use import to load ES Module
Here is a more verbose version of the error:
...ANSWER
Answered 2022-Mar-15 at 16:08I think the problem is that you are trying to use the deprecated babel-eslint parser, last updated a year ago, which looks like it doesn't support ES6 modules. Updating to the latest parser seems to work, at least for simple linting.
So, do this:
- In package.json, update the line
"babel-eslint": "^10.0.2",
to"@babel/eslint-parser": "^7.5.4",
. This works with the code above but it may be better to use the latest version, which at the time of writing is 7.16.3. - Run
npm i
from a terminal/command prompt in the folder - In .eslintrc, update the parser line
"parser": "babel-eslint",
to"parser": "@babel/eslint-parser",
- In .eslintrc, add
"requireConfigFile": false,
to the parserOptions section (underneath"ecmaVersion": 8,
) (I needed this or babel was looking for config files I don't have) - Run the command to lint a file
Then, for me with just your two configuration files, the error goes away and I get appropriate linting errors.
QUESTION
I'm currently using isort --profile=black --line-length=79
as a linter in my project for python files.
This produces the Vertical Hanging Indent (mode 3 in isort's documentation kind of output:
...ANSWER
Answered 2022-Mar-07 at 06:44You should use the --force-grid-wrap 2
flag in the CLI or set in the settings file like pyproject.toml
option force_grid_wrap = 2
. This would force isort to produce multiline output for 2 or more imports, regardless of line length. More info about this option
QUESTION
A hook is checking, if there are impersonation information in storage persisted, when the page renders, and if so, sets those information in the global AppState context.
...ANSWER
Answered 2022-Feb-15 at 10:17You can memoize the function when you create it with useCallback
:
QUESTION
Up until today I haven't seen this dart code suggestions. I am happy to follow best practise, but to be honest, this makes no sense showing up in a stateful widget with no constructor. I thought it might be related to the @immutable annotation, but it doesn't seem to be and the dart documentation doesn't really help.
Dart Docs https://dart-lang.github.io/linter/lints/prefer_const_constructors.html
Code Suggestions in VSCode
...ANSWER
Answered 2021-Jul-30 at 07:00Lint interpreter always will show you the best possible way to improvise your coding and performance optimization tips.
For ex: in your code, there are many widgets that are not going to rebuild. cause it's compile-time constants as they are not dependent on other dynamic properties.
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