ast: Attribute type

Updates #2

attr_test.go

@@ -0,0 +1,42 @@
+package avo
+
+import "testing"
+
+func TestAttributeAsm(t *testing.T) {
+	cases := []struct {
+		Attribute Attribute
+		Expect    string
+	}{
+		{0, "0"},
+		{32768, "32768"},
+		{1, "NOPROF"},
+		{DUPOK, "DUPOK"},
+		{RODATA | NOSPLIT, "NOSPLIT|RODATA"},
+		{WRAPPER | 16384 | NOPTR, "NOPTR|WRAPPER|16384"},
+		{NEEDCTXT + NOFRAME + TLSBSS + REFLECTMETHOD, "NEEDCTXT|TLSBSS|NOFRAME|REFLECTMETHOD"},
+	}
+	for _, c := range cases {
+		got := c.Attribute.Asm()
+		if got != c.Expect {
+			t.Errorf("Attribute(%d).Asm() = %#v; expect %#v", c.Attribute, got, c.Expect)
+		}
+	}
+}
+
+func TestAttributeContainsTextFlags(t *testing.T) {
+	cases := []struct {
+		Attribute Attribute
+		Expect    bool
+	}{
+		{0, false},
+		{32768, false},
+		{1, true},
+		{DUPOK, true},
+		{WRAPPER | 16384 | NOPTR, true},
+	}
+	for _, c := range cases {
+		if c.Attribute.ContainsTextFlags() != c.Expect {
+			t.Errorf("%s: ContainsTextFlags() expected %#v", c.Attribute.Asm(), c.Expect)
+		}
+	}
+}