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speedup typecheck on large project with compilation errors

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This commit is contained in:
Denis Isaev 2019-01-20 21:56:57 +03:00 committed by Isaev Denis
parent 2b7ea844ab
commit 2216387fa7
1 changed files with 8 additions and 3 deletions
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11
pkg/packages/util.go
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@ -10,7 +10,7 @@ import (
//nolint:gocyclo
func ExtractErrors(pkg *packages.Package, astCache *astcache.Cache) []packages.Error {
errors := extractErrorsImpl(pkg)
errors := extractErrorsImpl(pkg, map[*packages.Package]bool{})
if len(errors) == 0 {
return errors
}
@ -48,7 +48,12 @@ func ExtractErrors(pkg *packages.Package, astCache *astcache.Cache) []packages.E
return uniqErrors
}
func extractErrorsImpl(pkg *packages.Package) []packages.Error {
func extractErrorsImpl(pkg *packages.Package, seenPackages map[*packages.Package]bool) []packages.Error {
if seenPackages[pkg] {
return nil
}
seenPackages[pkg] = true
if !pkg.IllTyped { // otherwise it may take hours to traverse all deps many times
return nil
}
@ -59,7 +64,7 @@ func extractErrorsImpl(pkg *packages.Package) []packages.Error {
var errors []packages.Error
for _, iPkg := range pkg.Imports {
iPkgErrors := extractErrorsImpl(iPkg)
iPkgErrors := extractErrorsImpl(iPkg, seenPackages)
if iPkgErrors != nil {
errors = append(errors, iPkgErrors...)
}