// RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=text -analyzer-config graph-trim-interval=5 -analyzer-config suppress-null-return-paths=false -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=plist-multi-file -analyzer-config graph-trim-interval=5 -analyzer-config suppress-null-return-paths=false %s -o %t.plist
// RUN: FileCheck --input-file=%t.plist %s
typedef struct {
int getValue();
} IntWrapper;
IntWrapper *getNullWrapper() {
return 0;
// expected-note@-1 {{Returning null pointer}}
}
int memberCallBaseDisappears() {
// In this case, we need the lvalue-to-rvalue cast for 'ptr' to disappear,
// which means we need to trigger reclamation between that and the ->
// operator.
//
// Note that this test is EXTREMELY brittle because it's a negative test:
// we want to show that even if the node for the rvalue of 'ptr' disappears,
// we get the same results as if it doesn't. The test should never fail even
// if our node reclamation policy changes, but it could easily not be testing
// anything at that point.
IntWrapper *ptr = getNullWrapper();
// expected-note@-1 {{Calling 'getNullWrapper'}}
// expected-note@-2 {{Returning from 'getNullWrapper'}}
// expected-note@-3 {{'ptr' initialized to a null pointer value}}
// Burn some nodes to trigger reclamation.
int unused = 1;
(void)unused;
return ptr->getValue(); // expected-warning {{Called C++ object pointer is null}}
// expected-note@-1 {{Called C++ object pointer is null}}
}
// CHECK: diagnostics
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: path
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: kindcontrol
// CHECK-NEXT: edges
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: start
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line24
// CHECK-NEXT: col3
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line24
// CHECK-NEXT: col12
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: end
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line24
// CHECK-NEXT: col21
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line24
// CHECK-NEXT: col34
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: kindevent
// CHECK-NEXT: location
// CHECK-NEXT:
// CHECK-NEXT: line24
// CHECK-NEXT: col21
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT: ranges
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line24
// CHECK-NEXT: col21
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line24
// CHECK-NEXT: col36
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: depth0
// CHECK-NEXT: extended_message
// CHECK-NEXT: Calling 'getNullWrapper'
// CHECK-NEXT: message
// CHECK-NEXT: Calling 'getNullWrapper'
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: kindevent
// CHECK-NEXT: location
// CHECK-NEXT:
// CHECK-NEXT: line9
// CHECK-NEXT: col1
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT: depth1
// CHECK-NEXT: extended_message
// CHECK-NEXT: Entered call from 'memberCallBaseDisappears'
// CHECK-NEXT: message
// CHECK-NEXT: Entered call from 'memberCallBaseDisappears'
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: kindcontrol
// CHECK-NEXT: edges
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: start
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line9
// CHECK-NEXT: col1
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line9
// CHECK-NEXT: col10
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: end
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line10
// CHECK-NEXT: col3
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line10
// CHECK-NEXT: col8
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: kindevent
// CHECK-NEXT: location
// CHECK-NEXT:
// CHECK-NEXT: line10
// CHECK-NEXT: col3
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT: ranges
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line10
// CHECK-NEXT: col3
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line10
// CHECK-NEXT: col10
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: depth1
// CHECK-NEXT: extended_message
// CHECK-NEXT: Returning null pointer
// CHECK-NEXT: message
// CHECK-NEXT: Returning null pointer
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: kindevent
// CHECK-NEXT: location
// CHECK-NEXT:
// CHECK-NEXT: line24
// CHECK-NEXT: col21
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT: ranges
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line24
// CHECK-NEXT: col21
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line24
// CHECK-NEXT: col36
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: depth0
// CHECK-NEXT: extended_message
// CHECK-NEXT: Returning from 'getNullWrapper'
// CHECK-NEXT: message
// CHECK-NEXT: Returning from 'getNullWrapper'
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: kindcontrol
// CHECK-NEXT: edges
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: start
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line24
// CHECK-NEXT: col21
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line24
// CHECK-NEXT: col34
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: end
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line24
// CHECK-NEXT: col3
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line24
// CHECK-NEXT: col12
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: kindevent
// CHECK-NEXT: location
// CHECK-NEXT:
// CHECK-NEXT: line24
// CHECK-NEXT: col3
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT: ranges
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line24
// CHECK-NEXT: col3
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line24
// CHECK-NEXT: col17
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: depth0
// CHECK-NEXT: extended_message
// CHECK-NEXT: 'ptr' initialized to a null pointer value
// CHECK-NEXT: message
// CHECK-NEXT: 'ptr' initialized to a null pointer value
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: kindcontrol
// CHECK-NEXT: edges
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: start
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line24
// CHECK-NEXT: col3
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line24
// CHECK-NEXT: col12
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: end
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line33
// CHECK-NEXT: col3
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line33
// CHECK-NEXT: col8
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: kindcontrol
// CHECK-NEXT: edges
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: start
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line33
// CHECK-NEXT: col3
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line33
// CHECK-NEXT: col8
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: end
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line33
// CHECK-NEXT: col10
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line33
// CHECK-NEXT: col12
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: kindevent
// CHECK-NEXT: location
// CHECK-NEXT:
// CHECK-NEXT: line33
// CHECK-NEXT: col10
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT: ranges
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line33
// CHECK-NEXT: col10
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: line33
// CHECK-NEXT: col12
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: depth0
// CHECK-NEXT: extended_message
// CHECK-NEXT: Called C++ object pointer is null
// CHECK-NEXT: message
// CHECK-NEXT: Called C++ object pointer is null
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: descriptionCalled C++ object pointer is null
// CHECK-NEXT: categoryLogic error
// CHECK-NEXT: typeCalled C++ object pointer is null
// CHECK-NEXT: check_namecore.CallAndMessage
// CHECK-NEXT:
// CHECK-NEXT: issue_hash_content_of_line_in_contextf4a4cee851880ebbe93d3b657920ebe9
// CHECK-NEXT: issue_context_kindfunction
// CHECK-NEXT: issue_contextmemberCallBaseDisappears
// CHECK-NEXT: issue_hash_function_offset19
// CHECK-NEXT: location
// CHECK-NEXT:
// CHECK-NEXT: line33
// CHECK-NEXT: col10
// CHECK-NEXT: file0
// CHECK-NEXT:
// CHECK-NEXT:
// CHECK-NEXT: