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1 // RUN: %clang_cc1 -fmodules -fmodules-local-submodule-visibility -fno-modules-error-recovery -fno-spell-checking -verify %s
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2
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3 #pragma clang module build a
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4 module a { explicit module b {} explicit module c {} }
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5 #pragma clang module contents
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6
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7 #pragma clang module begin a.b
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8 namespace b { int n; }
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9 #pragma clang module end
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10
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11 #pragma clang module begin a.c
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12 #pragma clang module import a.b
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13 namespace c { using namespace b; }
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14 #pragma clang module end
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15
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16 #pragma clang module begin a
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17 #pragma clang module import a.c
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18 using namespace c;
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19 #pragma clang module end
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20
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21 #pragma clang module endbuild
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22
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23 #pragma clang module import a.b
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24 void use1() {
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25 (void)n; // expected-error {{use of undeclared identifier}}
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26 (void)::n; // expected-error {{no member named 'n' in the global namespace}}
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27 (void)b::n;
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28 }
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29 namespace b {
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30 void use1_in_b() { (void)n; }
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31 }
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32 namespace c {
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33 void use1_in_c() { (void)n; } // expected-error {{use of undeclared identifier}}
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34 }
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35
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36 #pragma clang module import a.c
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37 void use2() {
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38 (void)n; // expected-error {{use of undeclared identifier}}
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39 (void)::n; // expected-error {{no member named 'n' in the global namespace}}
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40 (void)b::n;
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41 (void)c::n;
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42 }
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43 namespace b {
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44 void use2_in_b() { (void)n; }
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45 }
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46 namespace c {
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47 void use2_in_c() { (void)n; }
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48 }
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49
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50 #pragma clang module import a
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51 void use3() {
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52 (void)n;
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53 (void)::n;
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54 (void)b::n;
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55 (void)c::n;
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56 }
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57 namespace b {
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58 void use3_in_b() { (void)n; }
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59 }
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60 namespace c {
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61 void use3_in_c() { (void)n; }
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62 }
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