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Fix failed_prerequisites error #944

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Merged
merged 2 commits into from
Feb 2, 2020
Merged

Fix failed_prerequisites error #944

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bb41e54
Fix failed_prerequisites error
ksoichiro Jan 27, 2020
796b4ff
Clear part of package fields before analysis
ksoichiro Jan 28, 2020
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17 changes: 17 additions & 0 deletions pkg/lint/linter/context.go
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Original file line number Diff line number Diff line change
@@ -1,6 +1,8 @@
package linter

import (
"go/ast"

"golang.org/x/tools/go/packages"

"github.com/golangci/golangci-lint/internal/pkgcache"
Expand Down Expand Up @@ -30,3 +32,18 @@ type Context struct {
func (c *Context) Settings() *config.LintersSettings {
return &c.Cfg.LintersSettings
}

func (c *Context) ClearTypesInPackages() {
for _, p := range c.Packages {
clearTypes(p)
}
for _, p := range c.OriginalPackages {
clearTypes(p)
}
}

func clearTypes(p *packages.Package) {
p.Types = nil
p.TypesInfo = nil
p.Syntax = []*ast.File{}
}
4 changes: 4 additions & 0 deletions pkg/lint/runner.go
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Original file line number Diff line number Diff line change
Expand Up @@ -114,6 +114,10 @@ func (r *Runner) runLinterSafe(ctx context.Context, lintCtx *linter.Context,
specificLintCtx := *lintCtx
specificLintCtx.Log = r.Log.Child(lc.Name())

// Packages in lintCtx might be dirty due to the last analysis,
// which affects to the next analysis.
// To avoid this issue, we clear type information from the packages.
specificLintCtx.ClearTypesInPackages()
issues, err := lc.Linter.Run(ctx, &specificLintCtx)
if err != nil {
return nil, err
Expand Down