Merge pull request #22892 from JuliaLang/jb/7479

better syntax error for `&&&`, fixes #7479
JuliaLang · Jul 21, 2017 · e640f66 · e640f66 · nanosoldier · Jul 21, 2017
2 parents 1dea9d2 + cf354f7
commit e640f66
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diff --git a/src/julia-syntax.scm b/src/julia-syntax.scm
@@ -3599,7 +3599,8 @@ f(x) = yt(x)
                    (emit temp))))
 
             ((&)
-             (assert (and value (not tail)))
+             (if (or (not value) tail)
+                 (error "misplaced \"&\" expression"))
              `(& ,(compile (cadr e) break-labels value tail)))
 
             ((newvar)

diff --git a/test/parse.jl b/test/parse.jl
@@ -1251,3 +1251,6 @@ end === (3, String)
 # issue #22868
 @test_throws ParseError parse("x@time 2")
 @test_throws ParseError parse("@ time")
+
+# issue #7479
+@test expand(Main, parse("(true &&& false)")) == Expr(:error, "misplaced \"&\" expression")