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-rw-r--r--src/cmd/gofmt/rewrite.go4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/cmd/gofmt/rewrite.go b/src/cmd/gofmt/rewrite.go
index 8ea5334e9..fbcd46aa2 100644
--- a/src/cmd/gofmt/rewrite.go
+++ b/src/cmd/gofmt/rewrite.go
@@ -124,9 +124,9 @@ func match(m map[string]reflect.Value, pattern, val reflect.Value) bool {
// Wildcard matches any expression. If it appears multiple
// times in the pattern, it must match the same expression
// each time.
- if m != nil && pattern.Type() == identType {
+ if m != nil && pattern != nil && pattern.Type() == identType {
name := pattern.Interface().(*ast.Ident).Name
- if isWildcard(name) {
+ if isWildcard(name) && val != nil {
// wildcards only match expressions
if _, ok := val.Interface().(ast.Expr); ok {
if old, ok := m[name]; ok {