333d66b094
This error was found when analyzing MySQL with CTU enabled. When there are space characters in the lookup name, the current delimiter searching strategy will make the file path wrongly parsed. And when two lookup names have the same prefix before their first space characters, a 'multiple definitions' error will be wrongly reported. e.g. The lookup names for the two lambda exprs in the test case are `c:@S@G@F@G#@Sa@F@operator int (*)(char)#1` and `c:@S@G@F@G#@Sa@F@operator bool (*)(char)#1` respectively. And their prefixes are both `c:@S@G@F@G#@Sa@F@operator` when using the first space character as the delimiter. Solving the problem by adding a length for the lookup name, making the index items in the format of `USR-Length:USR File-Path`. Reviewed By: steakhal Differential Revision: https://reviews.llvm.org/D102669
63 lines
1.1 KiB
C++
63 lines
1.1 KiB
C++
// RUN: %clang_extdef_map %s -- | FileCheck --implicit-check-not "c:@y" --implicit-check-not "c:@z" %s
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int f(int) {
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return 0;
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}
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// CHECK-DAG: 9:c:@F@f#I#
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extern const int x = 5;
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// CHECK-DAG: 4:c:@x
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// Non-const variables should not be collected.
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int y = 5;
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// In C++, const implies internal linkage, so not collected.
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const int z = 5;
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struct S {
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int a;
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};
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extern S const s = {.a = 2};
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// CHECK-DAG: 4:c:@s
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struct SF {
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const int a;
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};
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SF sf = {.a = 2};
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// CHECK-DAG: 5:c:@sf
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struct SStatic {
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static const int a = 4;
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};
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const int SStatic::a;
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// CHECK-DAG: 14:c:@S@SStatic@a
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extern int const arr[5] = { 0, 1 };
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// CHECK-DAG: 6:c:@arr
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union U {
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const int a;
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const unsigned int b;
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};
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U u = {.a = 6};
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// CHECK-DAG: 4:c:@u
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// No USR can be generated for this.
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// Check for no crash in this case.
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static union {
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float uf;
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const int ui;
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};
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void f(int (*)(char));
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void f(bool (*)(char));
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struct G {
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G() {
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f([](char) -> int { return 42; });
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// CHECK-DAG: 41:c:@S@G@F@G#@Sa@F@operator int (*)(char)#1
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f([](char) -> bool { return true; });
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// CHECK-DAG: 42:c:@S@G@F@G#@Sa@F@operator bool (*)(char)#1
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}
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};
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