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150
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1 template <class T>
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2 struct function {
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3 };
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4
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5
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6 void test() {
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7 void (*x)(int, double) = nullptr;
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8
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9 function<void(int, double)> y = {};
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252
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10 // RUN: %clang_cc1 -fsyntax-only -code-completion-patterns -code-completion-at=%s:%(line-3):28 %s -o - | FileCheck -check-prefix=CHECK-1 %s
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11 // RUN: %clang_cc1 -fsyntax-only -code-completion-patterns -code-completion-at=%s:%(line-2):35 %s -o - | FileCheck -check-prefix=CHECK-1 %s
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150
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12 // CHECK-1: COMPLETION: Pattern : [<#=#>](int <#parameter#>, double <#parameter#>) { <#body#> }
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13
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14 // == Placeholders for suffix types must be placed properly.
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15 function<void(void(*)(int))> z = {};
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252
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16 // RUN: %clang_cc1 -fsyntax-only -code-completion-patterns -code-completion-at=%s:%(line-1):36 %s -o - | FileCheck -check-prefix=CHECK-2 %s
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150
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17 // CHECK-2: COMPLETION: Pattern : [<#=#>](void (* <#parameter#>)(int)) { <#body#> }
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18
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19 // == No need for a parameter list if function has no parameters.
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20 function<void()> a = {};
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252
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21 // RUN: %clang_cc1 -fsyntax-only -code-completion-patterns -code-completion-at=%s:%(line-1):24 %s -o - | FileCheck -check-prefix=CHECK-3 %s
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150
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22 // CHECK-3: COMPLETION: Pattern : [<#=#>] { <#body#> }
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23 }
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24
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25 template <class T, class Allocator = int>
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26 struct vector {};
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27
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28 void test2() {
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29 // == Try to preserve types as written.
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30 function<void(vector<int>)> a = {};
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31
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32 using function_typedef = function<void(vector<int>)>;
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33 function_typedef b = {};
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252
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34 // RUN: %clang_cc1 -fsyntax-only -code-completion-patterns -code-completion-at=%s:%(line-4):35 %s -o - | FileCheck -check-prefix=CHECK-4 %s
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35 // RUN: %clang_cc1 -fsyntax-only -code-completion-patterns -code-completion-at=%s:%(line-2):24 %s -o - | FileCheck -check-prefix=CHECK-4 %s
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150
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36 // CHECK-4: COMPLETION: Pattern : [<#=#>](vector<int> <#parameter#>) { <#body#> }
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37 }
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38
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39 // Check another common function wrapper name.
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40 template <class T> struct unique_function {};
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41
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42 void test3() {
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43 unique_function<void()> a = {};
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252
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44 // RUN: %clang_cc1 -fsyntax-only -code-completion-patterns -code-completion-at=%s:%(line-1):31 %s -o - | FileCheck -check-prefix=CHECK-5 %s
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150
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45 // CHECK-5: COMPLETION: Pattern : [<#=#>] { <#body#> }
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46 }
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47
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48 template <class T, class U> struct weird_function {};
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49 void test4() {
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50 weird_function<void(), int> b = {};
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252
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51 // RUN: %clang_cc1 -fsyntax-only -code-completion-patterns -code-completion-at=%s:%(line-1):35 %s -o - | FileCheck -check-prefix=CHECK-6 %s
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150
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52 // CHECK-6-NOT: COMPLETION: Pattern : [<#=
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53 }
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54
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55 void test5() {
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56 // Completions are only added when -code-completion-patterns are enabled.
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57 function<void()> b = {};
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252
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58 // RUN: %clang_cc1 -fsyntax-only -code-completion-patterns -code-completion-at=%s:%(line-1):24 %s -o - | FileCheck -check-prefix=CHECK-7 %s
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150
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59 // CHECK-7: COMPLETION: Pattern : [<#=
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252
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60 // RUN: %clang_cc1 -fsyntax-only -code-completion-at=%s:%(line-3):24 %s -o - | FileCheck -check-prefix=CHECK-8 %s
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150
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61 // CHECK-8-NOT: COMPLETION: Pattern : [<#=
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62 }
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63
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64 void test6() {
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65 auto my_lambda = [&](int a, double &b) { return 1.f; };
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252
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66 // RUN: %clang_cc1 -fsyntax-only -code-completion-at=%s:%(line-1):58 %s -o - | FileCheck -check-prefix=CHECK-9 %s
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150
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67 // CHECK-9: [#float#]my_lambda(<#int a#>, <#double &b#>)[# const#]
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68 }
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69
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70 void test7() {
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71 auto generic_lambda = [&](auto a, const auto &b) { return a + b; };
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252
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72 // RUN: %clang_cc1 -fsyntax-only -code-completion-at=%s:%(line-1):70 %s -o - | FileCheck -check-prefix=CHECK-10 %s
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150
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73 // CHECK-10: [#auto#]generic_lambda(<#auto a#>, <#const auto &b#>)[# const#]
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74 }
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