Fixed more parser-errors found by the fuzzer; nil-receivers for AST o…

…bjects.
skx · May 15, 2021 · 7f196d1 · 7f196d1
1 parent c172e6c
commit 7f196d1
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Showing 2 changed files with 6 additions and 1 deletion.
diff --git a/ast/ast_switch.go b/ast/ast_switch.go
@@ -42,7 +42,9 @@ func (ce *CaseExpression) String() string {
 
 		tmp := []string{}
 		for _, exp := range ce.Expr {
-			tmp = append(tmp, exp.String())
+			if exp != nil {
+				tmp = append(tmp, exp.String())
+			}
 		}
 		out.WriteString(strings.Join(tmp, ","))
 	}

diff --git a/parser/parser_test.go b/parser/parser_test.go
@@ -856,6 +856,9 @@ func TestFuzzerResults(t *testing.T) {
 		`0.{0:{{0:{:0}}:0}}`,
 		`0.{0:{{0:!!{|:0}}:0}}`,
 		`0.-0.{�:0}`,
+		`0.switch(0){case�{}}`,
+		`0(0.switch(0){case{}}`,
+		`(0.switch(0){case{}}`,
 	}
 
 	for _, input := range inputs {