QL code and tests for C#/C++/JavaScript.

cpp/ql/test/duplication-tests/duplicate_functions/FLinesOfDuplicatedCode.expected

@@ -0,0 +1,2 @@
+| duplicate_functions.cpp:0:0:0:0 | duplicate_functions.cpp | 42 |
+| file://:0:0:0:0 |  | 0 |

cpp/ql/test/duplication-tests/duplicate_functions/FLinesOfDuplicatedCode.qlref

@@ -0,0 +1 @@
+Metrics/Files/FLinesOfDuplicatedCode.ql

cpp/ql/test/duplication-tests/duplicate_functions/duplicate_functions.cpp

@@ -0,0 +1,47 @@
+int x;
+
+void Void1()
+{
+  x = 0;
+  x = 1;
+  x = 2;
+  x = 3;
+  x = 4;
+  x = 5;
+  x = 6;
+}
+
+void Void2()
+{
+  x = 0;
+  x = 1;
+  x = 2;
+  x = 3;
+  x = 4;
+  x = 5;
+  x = 6;
+}
+
+int Int1()
+{
+  x = 0;
+  ++x;
+  ++x;
+  --x;
+  --x;
+  ++x;
+  --x;
+  return x;
+}
+
+int Int2()
+{
+  x = 0;
+  ++x;
+  ++x;
+  --x;
+  --x;
+  ++x;
+  --x;
+  return x;
+}

cpp/ql/test/duplication-tests/duplicate_functions/duplicate_functions.expected

@@ -0,0 +1,4 @@
+| duplicate_functions.cpp:3:6:3:10 | definition of Void1 | Function Void1 is duplicated at $@. | duplicate_functions.cpp:14:6:14:10 | definition of Void2 | duplicate_functions.cpp:14 |
+| duplicate_functions.cpp:14:6:14:10 | definition of Void2 | Function Void2 is duplicated at $@. | duplicate_functions.cpp:3:6:3:10 | definition of Void1 | duplicate_functions.cpp:3 |
+| duplicate_functions.cpp:25:5:25:8 | definition of Int1 | Function Int1 is duplicated at $@. | duplicate_functions.cpp:37:5:37:8 | definition of Int2 | duplicate_functions.cpp:37 |
+| duplicate_functions.cpp:37:5:37:8 | definition of Int2 | Function Int2 is duplicated at $@. | duplicate_functions.cpp:25:5:25:8 | definition of Int1 | duplicate_functions.cpp:25 |

cpp/ql/test/duplication-tests/duplicate_functions/duplicate_functions.qlref

@@ -0,0 +1 @@
+external/DuplicateFunction.ql

cpp/ql/test/duplication-tests/tokenising/FLinesOfDuplicatedCode.expected

@@ -0,0 +1,2 @@
+| test.c:0:0:0:0 | test.c | 10 |
+| file://:0:0:0:0 |  | 0 |

cpp/ql/test/duplication-tests/tokenising/FLinesOfDuplicatedCode.qlref

@@ -0,0 +1 @@
+Metrics/Files/FLinesOfDuplicatedCode.ql

cpp/ql/test/duplication-tests/tokenising/duplications.expected

@@ -0,0 +1 @@
+| 2 |

cpp/ql/test/duplication-tests/tokenising/duplications.ql

@@ -0,0 +1,6 @@
+import cpp
+
+// Provided tokenisation succeeded, we ought to have some
+// @duplication rows.
+select count(@duplication d)
+

cpp/ql/test/duplication-tests/tokenising/test.c

@@ -0,0 +1,18 @@
+
+#define foo "/*bar"
+#define bar aaa \ bbb
+
+int i;
+
+void f(void) {
+    i = 1;
+    i = 2;
+    i = 3;
+}
+
+void g(void) {
+    i = 1;
+    i = 2;
+    i = 3;
+}
+

cpp/ql/test/examples/expressions/AddressOf.c

@@ -0,0 +1,3 @@
+void v(int i) {
+  int *j = &i;
+}

cpp/ql/test/examples/expressions/ArrayToPointer.c

@@ -0,0 +1,10 @@
+struct S {
+	char* name;
+};
+
+void v()
+{
+  char c[] = "hello";
+  struct S s;
+  s.name = c;
+}

cpp/ql/test/examples/expressions/Cast.c

@@ -0,0 +1,3 @@
+void v(char *c, void *v) {
+  c = (char *)v;
+}

cpp/ql/test/examples/expressions/ConditionDecl.cpp

@@ -0,0 +1,5 @@
+void v() {
+  int j = 0;
+  while(int k = j < 5) {
+  }
+}

cpp/ql/test/examples/expressions/ConstructorCall.cpp

@@ -0,0 +1,21 @@
+class C {
+public:
+  C(int i) {
+  }  
+};
+
+class D {
+public:
+  D() {
+  }
+};
+
+class E {
+public:
+};
+
+void v(C *c, D *d, E *e) {
+  c = new C(5);
+  d = new D();
+  e = new E();
+}

cpp/ql/test/examples/expressions/Conversion1.c

@@ -0,0 +1,4 @@
+void v() {
+  int i = (int)1;
+}
+  

cpp/ql/test/examples/expressions/Conversion2.c

@@ -0,0 +1,3 @@
+void v(int x) {
+  x = (int)5 + (int)7;
+}

cpp/ql/test/examples/expressions/Conversion3.cpp

@@ -0,0 +1,3 @@
+void v(int x) {
+  x = (bool)(int)5 + ((int)7);
+}

cpp/ql/test/examples/expressions/Conversion4.c

@@ -0,0 +1,3 @@
+void v(int x) {
+  x = ((int)7);
+}

cpp/ql/test/examples/expressions/DestructorCall.cpp

@@ -0,0 +1,14 @@
+class C {
+public:
+  ~C() {
+  }  
+};
+
+class D {
+public:
+};
+
+void v(C *c, D *d) {
+  delete c;
+  delete d;
+}

cpp/ql/test/examples/expressions/DynamicCast.cpp

@@ -0,0 +1,14 @@
+class Base {
+  virtual void f() { } 
+};
+class Derived : public Base  {
+  void f() { } 
+};
+
+void v(Base *bp, Derived *d) {
+  d = dynamic_cast<Derived *>(bp);
+}
+
+void v_ref(Base &bp, Derived &d) {
+  d = dynamic_cast<Derived &>(bp);
+}

cpp/ql/test/examples/expressions/Parenthesis.c

@@ -0,0 +1,3 @@
+void v(int i) {
+  i = (i + 1) * 2;
+}

cpp/ql/test/examples/expressions/PointerDereference.c

@@ -0,0 +1,3 @@
+void v(int *i, int j) {
+  j = *i;
+}

cpp/ql/test/examples/expressions/PrintAST.qlref

@@ -0,0 +1 @@
+semmle/code/cpp/PrintAST.ql

cpp/ql/test/examples/expressions/ReferenceDereference.cpp

@@ -0,0 +1,6 @@
+/*
+  there is an implicit compiler-generated dereference node before the access to the variable 'i'
+*/
+void v(int &i, int j) {
+  j = i;
+}

cpp/ql/test/examples/expressions/ReferenceTo.cpp

@@ -0,0 +1,3 @@
+int& v(int *i) {
+  return *i;
+}

cpp/ql/test/examples/expressions/Sizeof.c

@@ -0,0 +1,4 @@
+void v(int array[]) {
+  int i = sizeof(int);
+  int j = sizeof(array);
+}

cpp/ql/test/examples/expressions/StatementExpr.c

@@ -0,0 +1,3 @@
+void v() {
+  int j = ({ int i = 5; i; });
+}

cpp/ql/test/examples/expressions/StaticMemberAccess.cpp

@@ -0,0 +1,9 @@
+struct X {
+  static int i;
+};
+
+void v(int i, X &xref) {
+//  i = X::i;
+  i = xref.i;
+  
+}

cpp/ql/test/examples/expressions/Subscript.c

@@ -0,0 +1,3 @@
+void v(int i[], int j) {
+  j = i[5];
+}  

cpp/ql/test/examples/expressions/Throw.cpp

@@ -0,0 +1,16 @@
+class E { };
+class F {
+  public:
+  F() { } 
+};
+void f(int i) {
+  try {
+    if(i)
+      throw E();
+    else
+      throw F();
+  } catch(E *e) {
+    throw;
+  }
+ 
+}

cpp/ql/test/examples/expressions/Typeid.cpp

@@ -0,0 +1,20 @@
+
+namespace std
+{
+  class type_info
+  {
+  public:
+    const char *name() const;
+  };
+}
+
+class Base {
+  public:
+    virtual void v() { }
+};
+class Derived : public Base {
+};
+
+void v(Base *bp) {
+  const char *name = typeid(bp).name();
+}

cpp/ql/test/examples/expressions/VacuousDestructorCall.cpp

@@ -0,0 +1,11 @@
+template<class T>
+void v(T x, T *y) {
+  x.T::~T();
+  y->T::~T();
+}
+
+void f(int i) {
+  // An int doesn't have a destructor, but we get to call it anyway through a
+  // template.
+  v(i, &i);
+}

cpp/ql/test/examples/expressions/Varargs.c

@@ -0,0 +1,12 @@
+typedef __builtin_va_list __gnuc_va_list;
+#define va_start(v,l)	__builtin_va_start(v,l)
+#define va_end(v)	__builtin_va_end(v)
+#define va_arg(v,l)	__builtin_va_arg(v,l)
+#define va_copy(d,s)	__builtin_va_copy(d,s)
+typedef __gnuc_va_list va_list;
+
+void output(const char *text, ...) {
+  va_list args;
+  va_start(args, text);
+  va_end (args);
+}

cpp/ql/test/examples/lgtm-query-examples/README.md

@@ -0,0 +1,3 @@
+This directory contains the C++ demo queries used on LGTM that are not also
+standard queries. Maintaining this copy should ensure that they continue to
+work.

cpp/ql/test/examples/lgtm-query-examples/assignment_to_parameter.expected

@@ -0,0 +1 @@
+| test.cpp:10:5:10:17 | ... = ... | Assignment of '0' to parameter '$@' has no effect. | test.cpp:3:42:3:44 | buf | buf |

cpp/ql/test/examples/lgtm-query-examples/assignment_to_parameter.ql

@@ -0,0 +1,17 @@
+/**
+ * @name Assignment to parameter has no effect
+ * @description An assignment to a parameter that is not subsequently read may
+ *              indicate a logic error.
+ * @kind problem
+ * @problem.severity warning
+ */
+
+import cpp
+
+from Parameter p, Assignment assign
+where assign = p.getAnAssignment()
+  and not assign.getASuccessor+() = p.getAnAccess()
+  and not p.getType() instanceof ReferenceType
+select assign, "Assignment of '"+ assign.getRValue() +
+               "' to parameter '$@' has no effect.",
+  p, p.getName()

cpp/ql/test/examples/lgtm-query-examples/equality_test_on_boolean.expected

@@ -0,0 +1 @@
+| test.cpp:4:9:4:17 | ... == ... | Expression tested for equality with 'true' |

cpp/ql/test/examples/lgtm-query-examples/equality_test_on_boolean.ql

@@ -0,0 +1,15 @@
+/**
+ * @name Equality test on Boolean
+ * @description Testing equality with `true` is redundant
+ *              and can make the code harder to read.
+ * @kind problem
+ * @problem.severity warning
+ */
+import cpp
+
+from EqualityOperation eq, Expr trueExpr
+where
+  trueExpr = eq.getAnOperand() and
+  trueExpr.getType() instanceof BoolType and
+  trueExpr.getValue().toInt() = 1
+select eq, "Expression tested for equality with 'true'"

cpp/ql/test/examples/lgtm-query-examples/non_literal_format_string.expected

@@ -0,0 +1 @@
+| test.cpp:5:9:5:15 | call to sprintf | sprintf called with variable format string. |

cpp/ql/test/examples/lgtm-query-examples/non_literal_format_string.ql

@@ -0,0 +1,16 @@
+/**
+ * @name Call to sprintf with non-literal format string
+ * @description Passing a non-constant 'format' string to a printf-like
+ *              function can lead to a mismatch between the number of arguments
+ *              defined by the 'format' and the number of arguments actually
+ *              passed to the function. If the format string ultimately stems
+ *              from an untrusted source, this can be used for exploits.
+ * @kind problem
+ * @problem.severity warning
+ */
+import cpp
+
+from FunctionCall fc
+where fc.getTarget().getQualifiedName() = "sprintf"
+and not fc.getArgument(1) instanceof StringLiteral
+select fc, "sprintf called with variable format string."

cpp/ql/test/examples/lgtm-query-examples/test.cpp

@@ -0,0 +1,11 @@
+long sprintf(char *buf, const char *format, ...);
+
+void f(bool b, const char *format, char *buf) {
+    if (b == true) { // BAD
+        sprintf(buf, format, 5); // BAD
+    } else if (!b) { // GOOD
+        buf = buf + 1; // GOOD
+        sprintf(buf, "%d", 5); // GOOD
+    }
+    buf = nullptr; // BAD
+}

cpp/ql/test/header-variant-tests/clang-pch/_.c

@@ -0,0 +1,3 @@
+// This file exists to ensure that the output subdirectory exists prior to
+// a.c being indexed, as said directory needs to exist for the PCH file to
+// be created, and will be created by running the extractor.

cpp/ql/test/header-variant-tests/clang-pch/a.c

@@ -0,0 +1,3 @@
+#include "a.h"
+#define FOUR 4
+// semmle-extractor-options: --clang -emit-pch -o ${testdir}/clang-pch.testproj/a.pch

cpp/ql/test/header-variant-tests/clang-pch/a.h

@@ -0,0 +1 @@
+#define ONE 1

cpp/ql/test/header-variant-tests/clang-pch/b.c

@@ -0,0 +1,7 @@
+#define TWO 2
+#include "b.h"
+
+int main() {
+  return ONE + TWO + THREE + FOUR;
+}
+// semmle-extractor-options: --clang -include-pch ${testdir}/clang-pch.testproj/a.pch -Iextra_dummy_path

cpp/ql/test/header-variant-tests/clang-pch/b.h

@@ -0,0 +1 @@
+#define THREE 3

cpp/ql/test/header-variant-tests/clang-pch/c.c

@@ -0,0 +1,4 @@
+int main() {
+  return ONE + FOUR;
+}
+// semmle-extractor-options: --clang -include ${testdir}/clang-pch.testproj/a -Iextra_dummy_path

cpp/ql/test/header-variant-tests/clang-pch/clang-pch.expected

@@ -0,0 +1,6 @@
+| b.c:5:3:5:34 | return ... | 10 |
+| c.c:2:3:2:20 | return ... | 5 |
+| e.c:2:3:2:19 | return ... | 17 |
+| i.c:3:3:3:12 | return ... | 30 |
+| i.c:8:3:8:12 | return ... | 31 |
+| i.c:13:3:13:12 | return ... | 32 |

cpp/ql/test/header-variant-tests/clang-pch/clang-pch.ql

@@ -0,0 +1,4 @@
+import cpp
+
+from ReturnStmt rs
+select rs, rs.getExpr().getValue()

cpp/ql/test/header-variant-tests/clang-pch/d.c

@@ -0,0 +1,2 @@
+#import "d.h"
+// semmle-extractor-options: --clang -emit-pch -o ${testdir}/clang-pch.testproj/d.pch

cpp/ql/test/header-variant-tests/clang-pch/d.h

@@ -0,0 +1 @@
+enum { SEVENTEEN = 17 };

cpp/ql/test/header-variant-tests/clang-pch/e.c

@@ -0,0 +1,4 @@
+int main() {
+  return SEVENTEEN;
+}
+// semmle-extractor-options: --clang -include-pch ${testdir}/clang-pch.testproj/d.pch

cpp/ql/test/header-variant-tests/clang-pch/f.c

@@ -0,0 +1,6 @@
+#if 1
+#pragma hdrstop
+extern int x;
+#define SEEN_F
+#endif
+// semmle-extractor-options: --clang -emit-pch -o ${testdir}/clang-pch.testproj/f.pch

cpp/ql/test/header-variant-tests/clang-pch/g.c

@@ -0,0 +1,6 @@
+#ifdef SEEN_F
+static int g() {
+  return 20;
+}
+#endif
+// semmle-extractor-options: --clang -include-pch ${testdir}/clang-pch.testproj/f.pch --expect_errors

cpp/ql/test/header-variant-tests/clang-pch/h.c

@@ -0,0 +1,5 @@
+#include "h1.h"
+#pragma hdrstop
+#include "h2.h"
+#define SEEN_H
+// semmle-extractor-options: --clang -emit-pch -o ${testdir}/clang-pch.testproj/h.pch

cpp/ql/test/header-variant-tests/clang-pch/h1.h

@@ -0,0 +1,3 @@
+
+#define H1
+

cpp/ql/test/header-variant-tests/clang-pch/h2.h

@@ -0,0 +1,3 @@
+
+#define H2
+

cpp/ql/test/header-variant-tests/clang-pch/i.c

@@ -0,0 +1,16 @@
+#ifdef SEEN_H
+static int h() {
+  return 30; // [FALSE POSITIVE] (#pragma hdrstop bug, SEEN_H should not be defined in the precompiled header)
+}
+#endif
+#ifdef H1
+static int h1() {
+  return 31;
+}
+#endif
+#ifdef H2
+static int h2() {
+  return 32; // [FALSE POSITIVE] (#pragma hdrstop bug, H2 should not be defined in the precompiled header)
+}
+#endif
+// semmle-extractor-options: --clang -include-pch ${testdir}/clang-pch.testproj/h.pch

cpp/ql/test/header-variant-tests/deduplication/bar.h

@@ -0,0 +1,8 @@
+const char* bar()
+{
+#ifndef BAR
+  return "bar";
+#else
+  return "baz";
+#endif
+}

cpp/ql/test/header-variant-tests/deduplication/classes.expected

@@ -0,0 +1,4 @@
+| file://:0:0:0:0 | __va_list_tag | 1 distinct class(es) called __va_list_tag |
+| main2.cpp:7:7:7:7 | C | 2 distinct class(es) called C |
+| main2.cpp:7:7:7:7 | C | 2 distinct class(es) called C |
+| main2.cpp:15:7:15:7 | D | 1 distinct class(es) called D |

cpp/ql/test/header-variant-tests/deduplication/classes.ql

@@ -0,0 +1,5 @@
+import default
+
+from Class c, string n
+where n = count(Class x | x.getName() = c.getName()) + " distinct class(es) called " + c.getName()
+select c, n

cpp/ql/test/header-variant-tests/deduplication/foo.h

@@ -0,0 +1,10 @@
+const char* foo()
+{
+  return "foo";
+}
+
+#ifdef FOO
+int foo_defined;
+#else
+int foo_not_defined;
+#endif

cpp/ql/test/header-variant-tests/deduplication/functions.expected

@@ -0,0 +1,15 @@
+| bar.h:1:13:1:15 | bar | Function | 2 | <none> |
+| bar.h:1:13:1:15 | bar | MemberFunction | 1 | C |
+| bar.h:1:13:1:15 | bar | MemberFunction | 1 | C |
+| bar.h:1:13:1:15 | bar | MemberFunction | 2 | D |
+| file://:0:0:0:0 | operator= | MemberFunction | 0 | __va_list_tag |
+| file://:0:0:0:0 | operator= | MemberFunction | 0 | __va_list_tag |
+| foo.h:1:13:1:15 | foo | Function | 1 | <none> |
+| foo.h:1:13:1:15 | foo | MemberFunction | 1 | C |
+| foo.h:1:13:1:15 | foo | MemberFunction | 1 | C |
+| main2.cpp:7:7:7:7 | operator= | MemberFunction | 0 | C |
+| main2.cpp:7:7:7:7 | operator= | MemberFunction | 0 | C |
+| main2.cpp:7:7:7:7 | operator= | MemberFunction | 0 | C |
+| main2.cpp:7:7:7:7 | operator= | MemberFunction | 0 | C |
+| main2.cpp:15:7:15:7 | operator= | MemberFunction | 0 | D |
+| main2.cpp:15:7:15:7 | operator= | MemberFunction | 0 | D |

cpp/ql/test/header-variant-tests/deduplication/functions.ql

@@ -0,0 +1,9 @@
+import cpp
+
+from Function f, string d, string c
+where if f instanceof MemberFunction then (
+  d = "MemberFunction" and c = ((MemberFunction)f).getDeclaringType().getName()
+) else (
+  d = "Function" and c = "<none>"
+)
+select f, d, count(f.getBlock()), c

cpp/ql/test/header-variant-tests/deduplication/main1.cpp

@@ -0,0 +1,3 @@
+#define FOO
+#define BAR
+#include "main2.cpp"

cpp/ql/test/header-variant-tests/deduplication/main2.cpp

@@ -0,0 +1,18 @@
+#include "foo.h"
+#include "bar.h"
+
+// This will cause multiple, incompatible definitions of C since the member
+// variable in foo.h has different names depending on whether or not FOO is
+// defined.
+class C
+{
+#include "foo.h"
+#include "bar.h"
+};
+
+// All definitions of D should be merged, since all members have the same name
+// and type.
+class D
+{
+#include "bar.h"
+};

cpp/ql/test/header-variant-tests/deduplication/variables.expected

@@ -0,0 +1,14 @@
+| file://:0:0:0:0 | fp_offset | file://:0:0:0:0 | unsigned int | MemberVariable | __va_list_tag |
+| file://:0:0:0:0 | gp_offset | file://:0:0:0:0 | unsigned int | MemberVariable | __va_list_tag |
+| file://:0:0:0:0 | overflow_arg_area | file://:0:0:0:0 | void * | MemberVariable | __va_list_tag |
+| file://:0:0:0:0 | p#0 | file://:0:0:0:0 | C && | Variable | <none> |
+| file://:0:0:0:0 | p#0 | file://:0:0:0:0 | C && | Variable | <none> |
+| file://:0:0:0:0 | p#0 | file://:0:0:0:0 | D && | Variable | <none> |
+| file://:0:0:0:0 | p#0 | file://:0:0:0:0 | const C & | Variable | <none> |
+| file://:0:0:0:0 | p#0 | file://:0:0:0:0 | const C & | Variable | <none> |
+| file://:0:0:0:0 | p#0 | file://:0:0:0:0 | const D & | Variable | <none> |
+| file://:0:0:0:0 | reg_save_area | file://:0:0:0:0 | void * | MemberVariable | __va_list_tag |
+| foo.h:7:5:7:15 | foo_defined | file://:0:0:0:0 | int | MemberVariable | C |
+| foo.h:7:5:7:15 | foo_defined | file://:0:0:0:0 | int | Variable | <none> |
+| foo.h:9:5:9:19 | foo_not_defined | file://:0:0:0:0 | int | MemberVariable | C |
+| foo.h:9:5:9:19 | foo_not_defined | file://:0:0:0:0 | int | Variable | <none> |

cpp/ql/test/header-variant-tests/deduplication/variables.ql

@@ -0,0 +1,9 @@
+import cpp
+
+from Variable v, string d, string c
+where if v instanceof MemberVariable then (
+  d = "MemberVariable" and c = ((MemberVariable)v).getDeclaringType().getName()
+) else (
+  d = "Variable" and c = "<none>"
+)
+select v, v.getType(), d, c

cpp/ql/test/header-variant-tests/functions-in-headers/a.h

@@ -0,0 +1,10 @@
+int complex()
+{
+  auto x = 4;
+  return x * x;
+}
+
+static int simple()
+{
+  return SIMPLE;
+}

cpp/ql/test/header-variant-tests/functions-in-headers/both_variants.expected

@@ -0,0 +1,2 @@
+| a.h:9:3:9:16 | return ... | a.h:7:12:7:17 | simple | 1 |
+| a.h:9:3:9:16 | return ... | a.h:7:12:7:17 | simple | 2 |

cpp/ql/test/header-variant-tests/functions-in-headers/both_variants.ql

@@ -0,0 +1,4 @@
+import cpp
+
+from ReturnStmt r
+select r, r.getEnclosingFunction(), r.getExpr().getValue()

cpp/ql/test/header-variant-tests/functions-in-headers/one.cpp

@@ -0,0 +1,4 @@
+#define SIMPLE 1
+#include "a.h"
+
+int one() { return simple(); }

cpp/ql/test/header-variant-tests/functions-in-headers/one_x.expected

@@ -0,0 +1,5 @@
+| a.h:3:8:3:8 | x | x | true |
+| file://:0:0:0:0 | fp_offset | fp_offset | false |
+| file://:0:0:0:0 | gp_offset | gp_offset | false |
+| file://:0:0:0:0 | overflow_arg_area | overflow_arg_area | false |
+| file://:0:0:0:0 | reg_save_area | reg_save_area | false |

cpp/ql/test/header-variant-tests/functions-in-headers/one_x.ql

@@ -0,0 +1,5 @@
+import cpp
+
+from Variable x, boolean auto
+where if x.declaredUsingAutoType() then auto = true else auto = false
+select x, x.getName(), auto

cpp/ql/test/header-variant-tests/functions-in-headers/two.cpp

@@ -0,0 +1,4 @@
+#define SIMPLE 2
+#include "a.h"
+
+int two() { return simple(); }

cpp/ql/test/header-variant-tests/headermaps/1.h

@@ -0,0 +1 @@
+static int one = __COUNTER__;

cpp/ql/test/header-variant-tests/headermaps/2.h

@@ -0,0 +1 @@
+static int two = __COUNTER__;

cpp/ql/test/header-variant-tests/headermaps/3.h

@@ -0,0 +1 @@
+static int three = __COUNTER__;

cpp/ql/test/header-variant-tests/headermaps/4.h

@@ -0,0 +1 @@
+static int four = __COUNTER__;

cpp/ql/test/header-variant-tests/headermaps/5.h

@@ -0,0 +1 @@
+static int five = __COUNTER__;

cpp/ql/test/header-variant-tests/headermaps/6.h

@@ -0,0 +1 @@
+static int six = __COUNTER__;

cpp/ql/test/header-variant-tests/headermaps/7.h

@@ -0,0 +1 @@
+static int seven = __COUNTER__;

cpp/ql/test/header-variant-tests/headermaps/8.h

@@ -0,0 +1 @@
+static int eight = __COUNTER__;

cpp/ql/test/header-variant-tests/headermaps/headermaps.c

@@ -0,0 +1,15 @@
+static int zero = __COUNTER__;
+
+// these map to 1.h through 4.h via little.hmap
+#include "a.h"
+#include "b.h"
+#include "C.H"
+#include "D.H"
+
+// these map to 5.h through 8.h via big.hmap
+#include "e.h"
+#include "f.h"
+#include "G.H"
+#include "H.H"
+
+// semmle-extractor-options: -I${testdir}/little_qltest.hmap -I${testdir}/big_qltest.hmap

cpp/ql/test/header-variant-tests/headermaps/headermaps.expected

@@ -0,0 +1,9 @@
+| 1.h:1:12:1:14 | one | 1 |
+| 2.h:1:12:1:14 | two | 2 |
+| 3.h:1:12:1:16 | three | 3 |
+| 4.h:1:12:1:15 | four | 4 |
+| 5.h:1:12:1:15 | five | 5 |
+| 6.h:1:12:1:14 | six | 6 |
+| 7.h:1:12:1:16 | seven | 7 |
+| 8.h:1:12:1:16 | eight | 8 |
+| headermaps.c:1:12:1:15 | zero | 0 |

cpp/ql/test/header-variant-tests/headermaps/headermaps.ql

@@ -0,0 +1,4 @@
+import cpp
+
+from Variable v
+select v, v.getInitializer().getExpr().getValue()

cpp/ql/test/header-variant-tests/headermaps/make_maps.lua

@@ -0,0 +1,90 @@
+-- This file generates the header map files used by this test.
+-- (it is provided in case the maps need to be changed)
+
+local function hash(str)
+  local n = 0
+  for c in str:lower():gmatch"." do
+    n = n + c:byte()*13
+  end
+  return n
+end
+
+local function write_map(filename, endian, mapping)
+  local num_entries = 0
+  local max_value_length = 0
+  for k, v in pairs(mapping) do
+    num_entries = num_entries + 1
+    max_value_length = math.max(max_value_length, #v)
+  end
+  local num_buckets = 2^math.ceil(math.log(num_entries + 1)/math.log(2))
+  local f = io.open(filename, "wb")
+  local function write_uint32(val)
+    local b0 = (val % 256); val = (val - b0) / 256
+    local b1 = (val % 256); val = (val - b1) / 256
+    local b2 = (val % 256); val = (val - b2) / 256
+    local b3 = (val % 256);
+    if endian == "little" then
+      f:write(string.char(b0, b1, b2, b3))
+    elseif endian == "big" then
+      f:write(string.char(b3, b2, b1, b0))
+    else
+      error(("Expected endian of %q or %q, got %q"):format("little", "big", endian))
+    end
+  end
+  if endian == "little" then
+    f:write("pamh\1\0")
+  else
+    f:write("hmap\0\1")
+  end
+  f:write("\0\0")
+  write_uint32(6*4 + num_buckets*12)
+  write_uint32(num_entries)
+  write_uint32(num_buckets)
+  write_uint32(max_value_length)
+  
+  local string_pieces = {"\0"}
+  local string_piece_length = 1
+  local encode = setmetatable({}, {__index = function(cache, str)
+    local result = string_piece_length
+    cache[str] = result
+    str = str .."\0"
+    string_pieces[#string_pieces + 1] = str
+    string_piece_length = string_piece_length + #str
+    return result
+  end})
+  local buckets = {}
+  for k, v in pairs(mapping) do
+    local i = hash(k) % num_buckets
+    while buckets[i] do
+      i = (i + 1) % num_buckets
+    end
+    local v1, v2 = v:match"(.*/)([^/]*)$"
+    buckets[i] = {encode[k], encode[v1], encode[v2]}
+  end
+  
+  for i = 0, num_buckets-1 do
+    for _, v in ipairs(buckets[i] or {0, 0, 0}) do
+      write_uint32(v)
+    end
+  end
+  f:write(table.unpack(string_pieces))
+  
+  f:close()
+end
+
+-- for langtests:
+--local root = "semmlecode-cpp-tests/header-variant-tests/headermaps/"
+-- for qltest:
+local root = "./"
+write_map("little.hmap", "little", {
+  ["a.h"] = root .."1.h",
+  ["B.h"] = root .."2.h",
+  ["c.H"] = root .."3.h",
+  ["D.H"] = root .."4.h",
+})
+write_map("big.hmap", "big", {
+  ["e.h"] = root .."5.h",
+  ["F.h"] = root .."6.h",
+  ["g.H"] = root .."7.h",
+  ["H.H"] = root .."8.h",
+})

cpp/ql/test/header-variant-tests/iquote/dir1/a.h

@@ -0,0 +1 @@
+static int dir1_a = __COUNTER__;

cpp/ql/test/header-variant-tests/iquote/dir1/b.h

@@ -0,0 +1 @@
+static int dir1_b = __COUNTER__;

cpp/ql/test/header-variant-tests/iquote/dir2/a.h

@@ -0,0 +1 @@
+static int dir2_a = __COUNTER__;

cpp/ql/test/header-variant-tests/iquote/iquote.c

@@ -0,0 +1,6 @@
+#include "a.h"
+#include <a.h>
+#include "b.h"
+static int has_angle_b = __has_include(<b.h>);
+
+// semmle-extractor-options: -I${testdir}/dir2 -iquote ${testdir}/dir1 --edg --clang

cpp/ql/test/header-variant-tests/iquote/iquote.expected

@@ -0,0 +1,4 @@
+| dir1/a.h:1:12:1:17 | dir1_a | 0 |
+| dir1/b.h:1:12:1:17 | dir1_b | 2 |
+| dir2/a.h:1:12:1:17 | dir2_a | 1 |
+| iquote.c:4:12:4:22 | has_angle_b | 0 |

cpp/ql/test/header-variant-tests/iquote/iquote.ql

@@ -0,0 +1,4 @@
+import cpp
+
+from Variable v
+select v, v.getInitializer().getExpr().getValue()