Salesforce: Illegal assignment from void to String
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Why is lint giving a warning ineffectual assignment to (ineffassign)
Jun 23, 2021 at 5:25. 2. @Ishmeet, note that the linter wasn't forcing you to use a var declaration; instead it hinted at that you might have a bug in your code—because the first assignment could be way more involved like assigning the return value of some function call which would return a value inintialized in a complicated way, and ...
methods
That's why you get a warning: you modify a field which you never use: you don't use in in the method after the assignment, and you can't possibly use it anywhere else, because after returning from the method, the effect of the assignment is lost. If you need to retain the changes, you must use a pointer receiver (p *Player) and modify the ...
Is it bad practice to reset an error in golang?
passwordLastUsed, err = time.Parse(time.RFC3339, record[lastUsed]) if err != nil { err = nil passwordLastUsed = time.Time{} } This code looks a bit messy and the 'ineffassign' linter returns this for the 'err = nil' statement: warning: ineffectual assignment to err (ineffassign)
"Ineffectual assignment" false positive when var used in deferred
On Fri, Jun 17, 2022, 11:52 Danut Avadanei ***@***.***> wrote: ineffassign version: last version available go version: go version go1.18.3 Running the linter when interacting with a var after passing it to a deferred function call marks it as ineffectual assignment package main import "errors" func shutdown(err error) { if err != nil { panic ...
Ineffectual Assignment to Err: What It Is and Why It Matters
Ineffectual assignment to err is a common problem in software development. It occurs when a developer assigns a value to a variable that is not used in the code. This can lead to errors and bugs that can be difficult to track down. There are a number of reasons why ineffectual assignment to err occurs.
How to Detect Unused Variables After Reassignment?
There are static code checkers which detect such, for example golangci-lint and staticcheck $ golangci-lint run x.go:15:8: ineffectual assignment to err (ineffassign) num2, err := strconv.Atoi("a") $ $ staticcheck ./... x.go:15:2: this value of err is never used (SA4006)
GitHub
ineffassign. Detect ineffectual assignments in Go code. An assignment is ineffectual if the variable assigned is not thereafter used. This tool misses some cases because it does not consider any type information in its analysis. For example, assignments to struct fields are never marked as ineffectual. It should, however, never give any false ...
github.com/gordonklaus/ineffassign
An assignment is ineffectual if the variable assigned is not thereafter used. This tool misses some cases because it does not consider any type information in its analysis. For example, assignments to struct fields are never marked as ineffectual. ... ineffassign returns 1 if any problems were found in the checked files. It returns 3 if there ...
Two linters I'll always add to new Go projects: errcheck and ineffassign
res := data[rand.Intn(len(data))] return res.v, res.err. data, err := getDataFromRpc() err = writeData(data) return err. This is perfectly valid code, and will write garbage sometimes, without any indication whatsoever. Yes, Go does refuse to compile code like this. data, err := getDataFromRpc() return err.
It's also suprisingly easy to mess up error returning. I've
a, err := foo() // This err is never used b, err := bar() This is much worse! And the compiler doesn't complain. Fortunately there's a linter called ineffassign that tracks ineffective assignments, and it's part of gometalinter and golangci-lint. But not "go vet". And there's no linter that can detect the first example that I gave.
Enable ineffassign in the linter and fix issues #2215
area/testing Issue related to testing the operator-sdk and subcomponents good first issue Denotes an issue ready for a new contributor, according to the "help wanted" guidelines. help wanted Denotes an issue that needs help from a contributor. Must meet "help wanted" guidelines. kind/flake Categorizes issue or PR as related to a flaky test.
ineffectual assignment to err (ineffassign)
Checklist I'm using the latest version of the extension (Run glab...
github.com/golangci/ineffassign
ineffassign. Detect ineffectual assignments in Go code. This tool misses some cases because does not consider any type information in its analysis. (For example, assignments to struct fields are never marked as ineffectual.) It should, however, never give any false positives.
Security assessment techniques for Go projects
Figure 1: An example program showing an ineffectual assignment of err tricking go-vet and errcheck into considering err as checked. $ go run . false : true $ errcheck .
ineffectual assignment to `err` · Issue #338 · dgrijalva/jwt-go
We should do something with err :-) http_example_test.go:57:12: ineffectual assignment to `err` (ineffassign) listener, err := net.ListenTCP("tcp", &net.TCPAddr{})
go初学踩坑：ineffectual assignment to 变量 (ineffassign)错误
Exceptions have much bigger problems. With exceptions you no longer even know which functions can return errors You are confusing runtime and checked exceptions.
Unused func is actually used #1505
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[Golang][client] ineffectual assignment in client.go / client.mustache
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[BUG] [GO] `ineffectual assignment to err` in `decode ...
Bug Report Checklist Have you provided a full/minimal spec to reproduce the issue? Have you validated the input using an OpenAPI validator (example)? Have you tested with the latest master to confirm the issue still exists? Have you sear...
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Jun 23, 2021 at 5:25. 2. @Ishmeet, note that the linter wasn't forcing you to use a var declaration; instead it hinted at that you might have a bug in your code—because the first assignment could be way more involved like assigning the return value of some function call which would return a value inintialized in a complicated way, and ...
That's why you get a warning: you modify a field which you never use: you don't use in in the method after the assignment, and you can't possibly use it anywhere else, because after returning from the method, the effect of the assignment is lost. If you need to retain the changes, you must use a pointer receiver (p *Player) and modify the ...
passwordLastUsed, err = time.Parse(time.RFC3339, record[lastUsed]) if err != nil { err = nil passwordLastUsed = time.Time{} } This code looks a bit messy and the 'ineffassign' linter returns this for the 'err = nil' statement: warning: ineffectual assignment to err (ineffassign)
On Fri, Jun 17, 2022, 11:52 Danut Avadanei ***@***.***> wrote: ineffassign version: last version available go version: go version go1.18.3 Running the linter when interacting with a var after passing it to a deferred function call marks it as ineffectual assignment package main import "errors" func shutdown(err error) { if err != nil { panic ...
Ineffectual assignment to err is a common problem in software development. It occurs when a developer assigns a value to a variable that is not used in the code. This can lead to errors and bugs that can be difficult to track down. There are a number of reasons why ineffectual assignment to err occurs.
There are static code checkers which detect such, for example golangci-lint and staticcheck $ golangci-lint run x.go:15:8: ineffectual assignment to err (ineffassign) num2, err := strconv.Atoi("a") $ $ staticcheck ./... x.go:15:2: this value of err is never used (SA4006)
ineffassign. Detect ineffectual assignments in Go code. An assignment is ineffectual if the variable assigned is not thereafter used. This tool misses some cases because it does not consider any type information in its analysis. For example, assignments to struct fields are never marked as ineffectual. It should, however, never give any false ...
An assignment is ineffectual if the variable assigned is not thereafter used. This tool misses some cases because it does not consider any type information in its analysis. For example, assignments to struct fields are never marked as ineffectual. ... ineffassign returns 1 if any problems were found in the checked files. It returns 3 if there ...
res := data[rand.Intn(len(data))] return res.v, res.err. data, err := getDataFromRpc() err = writeData(data) return err. This is perfectly valid code, and will write garbage sometimes, without any indication whatsoever. Yes, Go does refuse to compile code like this. data, err := getDataFromRpc() return err.
a, err := foo() // This err is never used b, err := bar() This is much worse! And the compiler doesn't complain. Fortunately there's a linter called ineffassign that tracks ineffective assignments, and it's part of gometalinter and golangci-lint. But not "go vet". And there's no linter that can detect the first example that I gave.
area/testing Issue related to testing the operator-sdk and subcomponents good first issue Denotes an issue ready for a new contributor, according to the "help wanted" guidelines. help wanted Denotes an issue that needs help from a contributor. Must meet "help wanted" guidelines. kind/flake Categorizes issue or PR as related to a flaky test.
Checklist I'm using the latest version of the extension (Run glab...
ineffassign. Detect ineffectual assignments in Go code. This tool misses some cases because does not consider any type information in its analysis. (For example, assignments to struct fields are never marked as ineffectual.) It should, however, never give any false positives.
Figure 1: An example program showing an ineffectual assignment of err tricking go-vet and errcheck into considering err as checked. $ go run . false : true $ errcheck .
We should do something with err :-) http_example_test.go:57:12: ineffectual assignment to `err` (ineffassign) listener, err := net.ListenTCP("tcp", &net.TCPAddr{})
go初学踩坑：ineffectual assignment to 变量 (ineffassign)错误 28311; photoshop中 怎么改变一张png图片的颜色 26238; Android Studio报错：Unsupported method: AndroidProject.getPluginGeneration()的一种解决方法 26165
Exceptions have much bigger problems. With exceptions you no longer even know which functions can return errors You are confusing runtime and checked exceptions.
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Saved searches Use saved searches to filter your results more quickly
Bug Report Checklist Have you provided a full/minimal spec to reproduce the issue? Have you validated the input using an OpenAPI validator (example)? Have you tested with the latest master to confirm the issue still exists? Have you sear...