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Add stringintconv and ifaceassert to govet #1360

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merged 2 commits into from Feb 20, 2021
Merged

Add stringintconv and ifaceassert to govet #1360

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f479a92
Add stringintconv and ifaceassert to govet
Sep 8, 2020
d3ec33e
fix: tests
ldez Feb 18, 2021
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5 changes: 5 additions & 0 deletions pkg/golinters/govet.go
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Expand Up @@ -17,6 +17,7 @@ import (
"golang.org/x/tools/go/analysis/passes/errorsas"
"golang.org/x/tools/go/analysis/passes/findcall"
"golang.org/x/tools/go/analysis/passes/httpresponse"
"golang.org/x/tools/go/analysis/passes/ifaceassert"
_ "golang.org/x/tools/go/analysis/passes/inspect" // unused internal analyzer
"golang.org/x/tools/go/analysis/passes/loopclosure"
"golang.org/x/tools/go/analysis/passes/lostcancel"
Expand All @@ -28,6 +29,7 @@ import (
"golang.org/x/tools/go/analysis/passes/shift"
"golang.org/x/tools/go/analysis/passes/sortslice"
"golang.org/x/tools/go/analysis/passes/stdmethods"
"golang.org/x/tools/go/analysis/passes/stringintconv"
"golang.org/x/tools/go/analysis/passes/structtag"
"golang.org/x/tools/go/analysis/passes/testinggoroutine"
"golang.org/x/tools/go/analysis/passes/tests"
Expand Down Expand Up @@ -55,6 +57,7 @@ var (
errorsas.Analyzer,
findcall.Analyzer,
httpresponse.Analyzer,
ifaceassert.Analyzer,
loopclosure.Analyzer,
lostcancel.Analyzer,
nilfunc.Analyzer,
Expand All @@ -64,6 +67,7 @@ var (
shift.Analyzer,
sortslice.Analyzer,
stdmethods.Analyzer,
stringintconv.Analyzer,
structtag.Analyzer,
testinggoroutine.Analyzer,
tests.Analyzer,
Expand All @@ -90,6 +94,7 @@ var (
printf.Analyzer,
shift.Analyzer,
stdmethods.Analyzer,
stringintconv.Analyzer,
structtag.Analyzer,
tests.Analyzer,
unmarshal.Analyzer,
Expand Down
7 changes: 6 additions & 1 deletion test/testdata/govet.go
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Expand Up @@ -8,7 +8,7 @@ import (
"os"
)

func Govet() error {
func GovetComposites() error {
return &os.PathError{"first", "path", os.ErrNotExist} // ERROR "composites: \\`(os|io/fs)\\.PathError\\` composite literal uses unkeyed fields"
}

Expand Down Expand Up @@ -36,3 +36,8 @@ func GovetPrintf() {
x := "dummy"
fmt.Printf("%d", x) // ERROR "printf: Printf format %d has arg x of wrong type string"
}

func GovetStringIntConv() {
i := 42
fmt.Println("i = " + string(i)) // ERROR "stringintconv: conversion from int to string yields a string of one rune, not a string of digits \\(did you mean fmt.Sprint\\(x\\)\\?\\)"
}
14 changes: 14 additions & 0 deletions test/testdata/govet_ifaceassert.go
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@@ -0,0 +1,14 @@
//args: -Egovet
//config: linters-settings.govet.enable=ifaceassert
package testdata

import (
"io"
)

func GovetIfaceAssert() {
var v interface {
Read()
}
_ = v.(io.Reader) // ERROR "impossible type assertion: no type can implement both interface\\{Read\\(\\)\\} and io\\.Reader \\(conflicting types for Read method\\)"
}