b032e3ff61
Introducing the support for evaluating the constructor of every element in an array. The idea is to record the index of the current array member being constructed and create a loop during the analysis. We looping over the same CXXConstructExpr as many times as many elements the array has. Differential Revision: https://reviews.llvm.org/D127973
53 lines
1.3 KiB
C++
53 lines
1.3 KiB
C++
// RUN: %clang_analyze_cc1 -w -analyzer-checker=core,debug.ExprInspection -analyzer-config c++-allocator-inlining=true -std=c++11 -verify -analyzer-config eagerly-assume=false %s
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void clang_analyzer_eval(bool);
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void clang_analyzer_warnIfReached();
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struct S {
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int x;
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S() : x(1) {}
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~S() {}
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};
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void checkConstructorInlining() {
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S *s = new S;
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clang_analyzer_eval(s->x == 1); // expected-warning{{TRUE}}
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}
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void checkNewPOD() {
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int *i = new int;
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clang_analyzer_eval(*i == 0); // expected-warning{{UNKNOWN}}
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int *j = new int();
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clang_analyzer_eval(*j == 0); // expected-warning{{TRUE}}
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int *k = new int(5);
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clang_analyzer_eval(*k == 5); // expected-warning{{TRUE}}
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}
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void checkNewArray() {
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S *s = new S[10];
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// FIXME: Handle big array construction
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clang_analyzer_eval(s[0].x == 1); // expected-warning{{UNKNOWN}}
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clang_analyzer_eval(s[1].x == 1); // expected-warning{{UNKNOWN}}
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s = new S[4];
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clang_analyzer_eval(s[0].x == 1); // expected-warning{{TRUE}}
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clang_analyzer_eval(s[1].x == 1); // expected-warning{{TRUE}}
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}
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struct NullS {
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NullS() {
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if (this) {}
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}
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NullS(int x) {
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if (!this) {
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clang_analyzer_warnIfReached(); // no-warning
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}
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}
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};
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void checkNullThis() {
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NullS *nulls = new NullS(); // no-crash
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NullS *nulls2 = new NullS(0);
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}
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