| Dominic Chen | 184c624 | 2017-03-03 18:02:02 +0000 | [diff] [blame] | 1 | // RUN: %clang_analyze_cc1 -triple x86_64-apple-darwin10 -analyzer-checker=core -fblocks -analyzer-opt-analyze-nested-blocks -verify -x objective-c++ %s |
| 2 | // RUN: %clang_analyze_cc1 -std=c++11 -analyzer-checker=core,debug.DumpCFG -fblocks -analyzer-opt-analyze-nested-blocks %s > %t 2>&1 |
| Devin Coughlin | b6029b7 | 2015-11-25 22:35:37 +0000 | [diff] [blame] | 3 | // RUN: FileCheck --input-file=%t %s |
| 4 | |
| 5 | // expected-no-diagnostics |
| 6 | |
| 7 | void testBlockWithoutCopyExpression(int i) { |
| 8 | // Captures i, with no copy expression. |
| 9 | (void)(^void() { |
| 10 | (void)i; |
| 11 | }); |
| 12 | } |
| 13 | |
| 14 | // CHECK-LABEL:void testBlockWithoutCopyExpression(int i) |
| 15 | // CHECK-NEXT: [B2 (ENTRY)] |
| 16 | // CHECK-NEXT: Succs (1): B1 |
| 17 | |
| 18 | // CHECK: [B1] |
| 19 | // CHECK-NEXT: 1: ^{ } |
| 20 | // CHECK-NEXT: 2: (void)([B1.1]) (CStyleCastExpr, ToVoid, void) |
| 21 | // CHECK-NEXT: Preds (1): B2 |
| 22 | // CHECK-NEXT: Succs (1): B0 |
| 23 | |
| 24 | // CHECK: [B0 (EXIT)] |
| 25 | // CHECK-NEXT: Preds (1): B1 |
| 26 | |
| 27 | struct StructWithCopyConstructor { |
| 28 | StructWithCopyConstructor(int i); |
| 29 | StructWithCopyConstructor(const StructWithCopyConstructor &s); |
| 30 | }; |
| 31 | void testBlockWithCopyExpression(StructWithCopyConstructor s) { |
| 32 | // Captures s, with a copy expression calling the copy constructor for StructWithCopyConstructor. |
| 33 | (void)(^void() { |
| 34 | (void)s; |
| 35 | }); |
| 36 | } |
| 37 | |
| 38 | // CHECK-LABEL:void testBlockWithCopyExpression(StructWithCopyConstructor s) |
| 39 | // CHECK-NEXT: [B2 (ENTRY)] |
| 40 | // CHECK-NEXT: Succs (1): B1 |
| 41 | |
| 42 | // CHECK: [B1] |
| 43 | // CHECK-NEXT: 1: s |
| 44 | // CHECK-NEXT: 2: [B1.1] (CXXConstructExpr, const struct StructWithCopyConstructor) |
| 45 | // CHECK-NEXT: 3: ^{ } |
| 46 | // CHECK-NEXT: 4: (void)([B1.3]) (CStyleCastExpr, ToVoid, void) |
| 47 | // CHECK-NEXT: Preds (1): B2 |
| 48 | // CHECK-NEXT: Succs (1): B0 |
| 49 | |
| 50 | // CHECK: [B0 (EXIT)] |
| 51 | // CHECK-NEXT: Preds (1): B1 |
| 52 | |
| 53 | void testBlockWithCaptureByReference() { |
| 54 | __block StructWithCopyConstructor s(5); |
| 55 | // Captures s by reference, so no copy expression. |
| 56 | (void)(^void() { |
| 57 | (void)s; |
| 58 | }); |
| 59 | } |
| 60 | |
| 61 | // CHECK-LABEL:void testBlockWithCaptureByReference() |
| 62 | // CHECK-NEXT: [B2 (ENTRY)] |
| 63 | // CHECK-NEXT: Succs (1): B1 |
| 64 | |
| 65 | // CHECK: [B1] |
| 66 | // CHECK-NEXT: 1: 5 |
| 67 | // CHECK-NEXT: 2: [B1.1] (CXXConstructExpr, struct StructWithCopyConstructor) |
| 68 | // CHECK-NEXT: 3: StructWithCopyConstructor s(5) __attribute__((blocks("byref"))); |
| 69 | // CHECK-NEXT: 4: ^{ } |
| 70 | // CHECK-NEXT: 5: (void)([B1.4]) (CStyleCastExpr, ToVoid, void) |
| 71 | // CHECK-NEXT: Preds (1): B2 |
| 72 | // CHECK-NEXT: Succs (1): B0 |
| 73 | |
| 74 | // CHECK: [B0 (EXIT)] |
| 75 | // CHECK-NEXT: Preds (1): B1 |