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
81 lines
2.0 KiB
C++
81 lines
2.0 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -analyze \
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// RUN: -analyzer-checker=core,debug.ExprInspection %s -verify
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// These test cases demonstrate lack of Static Analyzer features.
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// The FIXME: tags indicate where we expect different output.
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// Handle constructors within new[].
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// When an array of objects is allocated using the operator new[],
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// constructors for all elements of the array are called.
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// We should model (potentially some of) such evaluations,
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// and the same applies for destructors called from operator delete[].
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void clang_analyzer_eval(bool);
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struct init_with_list {
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int a;
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init_with_list() : a(1) {}
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};
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struct init_in_body {
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int a;
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init_in_body() { a = 1; }
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};
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struct init_default_member {
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int a = 1;
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};
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void test_automatic() {
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init_with_list a1;
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init_in_body a2;
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init_default_member a3;
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clang_analyzer_eval(a1.a == 1); // expected-warning {{TRUE}}
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clang_analyzer_eval(a2.a == 1); // expected-warning {{TRUE}}
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clang_analyzer_eval(a3.a == 1); // expected-warning {{TRUE}}
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}
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void test_dynamic() {
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auto *a1 = new init_with_list;
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auto *a2 = new init_in_body;
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auto *a3 = new init_default_member;
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clang_analyzer_eval(a1->a == 1); // expected-warning {{TRUE}}
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clang_analyzer_eval(a2->a == 1); // expected-warning {{TRUE}}
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clang_analyzer_eval(a3->a == 1); // expected-warning {{TRUE}}
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delete a1;
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delete a2;
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delete a3;
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}
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void test_automatic_aggregate() {
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init_with_list a1[1];
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init_in_body a2[1];
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init_default_member a3[1];
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clang_analyzer_eval(a1[0].a == 1); // expected-warning {{TRUE}}
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clang_analyzer_eval(a2[0].a == 1); // expected-warning {{TRUE}}
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clang_analyzer_eval(a3[0].a == 1); // expected-warning {{TRUE}}
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}
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void test_dynamic_aggregate() {
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auto *a1 = new init_with_list[1];
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auto *a2 = new init_in_body[1];
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auto *a3 = new init_default_member[1];
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clang_analyzer_eval(a1[0].a == 1); // expected-warning {{TRUE}}
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clang_analyzer_eval(a2[0].a == 1); // expected-warning {{TRUE}}
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clang_analyzer_eval(a3[0].a == 1); // expected-warning {{TRUE}}
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delete[] a1;
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delete[] a2;
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delete[] a3;
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}
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