df4f6766ba
Get rid of AST cache: load AST when needed. Optimize memory allocations for go/analysis actions. Relates: #337
73 lines
1.7 KiB
Go
73 lines
1.7 KiB
Go
package packages
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import (
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"fmt"
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"golang.org/x/tools/go/packages"
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)
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//nolint:gocyclo
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func ExtractErrors(pkg *packages.Package) []packages.Error {
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errors := extractErrorsImpl(pkg, map[*packages.Package]bool{})
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if len(errors) == 0 {
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return errors
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}
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seenErrors := map[string]bool{}
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var uniqErrors []packages.Error
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for _, err := range errors {
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if seenErrors[err.Msg] {
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continue
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}
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seenErrors[err.Msg] = true
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uniqErrors = append(uniqErrors, err)
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}
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if len(pkg.GoFiles) != 0 {
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// errors were extracted from deps and have at leat one file in package
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for i := range uniqErrors {
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_, parseErr := ParseErrorPosition(uniqErrors[i].Pos)
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if parseErr != nil {
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// change pos to local file to properly process it by processors (properly read line etc)
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uniqErrors[i].Msg = fmt.Sprintf("%s: %s", uniqErrors[i].Pos, uniqErrors[i].Msg)
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uniqErrors[i].Pos = fmt.Sprintf("%s:1", pkg.GoFiles[0])
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}
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}
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// some errors like "code in directory expects import" don't have Pos, set it here
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for i := range uniqErrors {
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err := &uniqErrors[i]
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if err.Pos == "" {
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err.Pos = fmt.Sprintf("%s:1", pkg.GoFiles[0])
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}
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}
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}
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return uniqErrors
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}
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func extractErrorsImpl(pkg *packages.Package, seenPackages map[*packages.Package]bool) []packages.Error {
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if seenPackages[pkg] {
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return nil
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}
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seenPackages[pkg] = true
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if !pkg.IllTyped { // otherwise it may take hours to traverse all deps many times
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return nil
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}
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if len(pkg.Errors) != 0 {
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return pkg.Errors
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}
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var errors []packages.Error
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for _, iPkg := range pkg.Imports {
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iPkgErrors := extractErrorsImpl(iPkg, seenPackages)
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if iPkgErrors != nil {
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errors = append(errors, iPkgErrors...)
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}
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}
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return errors
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}
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