Merge pull request timakin#14 from ldez/fix/maxbytesreader

fix: call method nil.

Author: timakin

passes/bodyclose/bodyclose.go

@@ -227,7 +227,7 @@ func (r *runner) isCloseCall(ccall ssa.Instruction) bool {
 			return true
 		}
 	case *ssa.Call:
-		if ccall.Call.Method.Name() == r.closeMthd.Name() {
+		if ccall.Call.Method != nil && ccall.Call.Method.Name() == r.closeMthd.Name() {
 			return true
 		}
 	case *ssa.ChangeInterface:

passes/bodyclose/testdata/src/a/issue4.go

@@ -0,0 +1,20 @@
+package a
+
+import (
+	"io"
+	"net/http"
+)
+
+func issue4_1() {
+	resp, _ := http.Get("https://example.com") // want "response body must be closed"
+
+	foo(resp.Body)
+}
+
+func foo(r io.ReadCloser) {}
+
+func issue4_2() {
+	resp, _ := http.Get("https://example.com") // want "response body must be closed"
+
+	_ = http.MaxBytesReader(nil, resp.Body, 1024)
+}