1 files changed, 0 insertions, 129 deletions
diff --git a/tools/checklocks/annotations.go b/tools/checklocks/annotations.go
deleted file mode 100644
index 371260980..000000000
--- a/tools/checklocks/annotations.go
+++ /dev/null
@@ -1,129 +0,0 @@
-// Copyright 2020 The gVisor Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package checklocks
-
-import (
-	"fmt"
-
-	"go/token"
-	"strconv"
-	"strings"
-)
-
-const (
-	checkLocksAnnotation  = "// +checklocks:"
-	checkLocksAcquires    = "// +checklocksacquire:"
-	checkLocksReleases    = "// +checklocksrelease:"
-	checkLocksIgnore      = "// +checklocksignore"
-	checkLocksForce       = "// +checklocksforce"
-	checkLocksFail        = "// +checklocksfail"
-	checkAtomicAnnotation = "// +checkatomic"
-)
-
-// failData indicates an expected failure.
-type failData struct {
-	pos   token.Pos
-	count int
-	seen  int
-}
-
-// positionKey is a simple position string.
-type positionKey string
-
-// positionKey converts from a token.Pos to a key we can use to track failures
-// as the position of the failure annotation is not the same as the position of
-// the actual failure (different column/offsets). Hence we ignore these fields
-// and only use the file/line numbers to track failures.
-func (pc *passContext) positionKey(pos token.Pos) positionKey {
-	position := pc.pass.Fset.Position(pos)
-	return positionKey(fmt.Sprintf("%s:%d", position.Filename, position.Line))
-}
-
-// addFailures adds an expected failure.
-func (pc *passContext) addFailures(pos token.Pos, s string) {
-	count := 1
-	if len(s) > 0 && s[0] == ':' {
-		parsedCount, err := strconv.Atoi(s[1:])
-		if err != nil {
-			pc.pass.Reportf(pos, "unable to parse failure annotation %q: %v", s[1:], err)
-			return
-		}
-		count = parsedCount
-	}
-	pc.failures[pc.positionKey(pos)] = &failData{
-		pos:   pos,
-		count: count,
-	}
-}
-
-// addExemption adds an exemption.
-func (pc *passContext) addExemption(pos token.Pos) {
-	pc.exemptions[pc.positionKey(pos)] = struct{}{}
-}
-
-// addForce adds a force annotation.
-func (pc *passContext) addForce(pos token.Pos) {
-	pc.forced[pc.positionKey(pos)] = struct{}{}
-}
-
-// maybeFail checks a potential failure against a specific failure map.
-func (pc *passContext) maybeFail(pos token.Pos, fmtStr string, args ...interface{}) {
-	if fd, ok := pc.failures[pc.positionKey(pos)]; ok {
-		fd.seen++
-		return
-	}
-	if _, ok := pc.exemptions[pc.positionKey(pos)]; ok {
-		return // Ignored, not counted.
-	}
-	pc.pass.Reportf(pos, fmtStr, args...)
-}
-
-// checkFailure checks for the expected failure counts.
-func (pc *passContext) checkFailures() {
-	for _, fd := range pc.failures {
-		if fd.count != fd.seen {
-			// We are missing expect failures, report as much as possible.
-			pc.pass.Reportf(fd.pos, "got %d failures, want %d failures", fd.seen, fd.count)
-		}
-	}
-}
-
-// extractAnnotations extracts annotations from text.
-func (pc *passContext) extractAnnotations(s string, fns map[string]func(p string)) {
-	for prefix, fn := range fns {
-		if strings.HasPrefix(s, prefix) {
-			fn(s[len(prefix):])
-		}
-	}
-}
-
-// extractLineFailures extracts all line-based exceptions.
-//
-// Note that this applies only to individual line exemptions, and does not
-// consider function-wide exemptions, or specific field exemptions, which are
-// extracted separately as part of the saved facts for those objects.
-func (pc *passContext) extractLineFailures() {
-	for _, f := range pc.pass.Files {
-		for _, cg := range f.Comments {
-			for _, c := range cg.List {
-				pc.extractAnnotations(c.Text, map[string]func(string){
-					checkLocksFail:   func(p string) { pc.addFailures(c.Pos(), p) },
-					checkLocksIgnore: func(string) { pc.addExemption(c.Pos()) },
-					checkLocksForce:  func(string) { pc.addForce(c.Pos()) },
-				})
-			}
-		}
-	}
-}