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144 lines
1.9 KiB
144 lines
1.9 KiB
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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namespace reference_field {
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struct X {
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int f;
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};
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// Compare cfgs for different field types.
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// Ptr and Ref translation should be the same modulo pointer type
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// Ref stores reference fields
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// Ptr stores pointer fields and has same semantics as Ref
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// Val stores value fields and has different semantics than Ref and Ptr
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struct Ref {
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X& x;
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int& i;
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Ref(X& r_) : x(r_), i(x.f) {}
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int getF() { return x.f; }
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int getI() { return i; }
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};
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struct Ptr {
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X* x;
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int* i;
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Ptr(X& r_) : x(&r_), i(&x->f) {}
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int getF() { return x->f; }
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int getI() { return *i; }
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};
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struct Val {
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X x;
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int i;
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Val(X& r_) : x(r_), i(x.f) {}
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int getF() { return x.f; }
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int getI() { return i; }
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};
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// Ref Tests
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int ref_F_div0() {
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X x;
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x.f = 1;
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Ref r(x);
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x.f = 0;
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return 1 / r.x.f;
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}
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int ref_I_div0() {
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X x;
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x.f = 1;
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Ref r(x);
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x.f = 0;
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return 1 / r.i;
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}
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int ref_getF_div0() {
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X x;
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x.f = 1;
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Ref r(x);
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x.f = 0;
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return 1 / r.getF();
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}
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int ref_getI_div0() {
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X x;
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x.f = 1;
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Ref r(x);
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x.f = 0;
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return 1 / r.getI();
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}
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// Ptr Tests
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int ptr_F_div0() {
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X x;
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x.f = 1;
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Ptr r(x);
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x.f = 0;
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return 1 / r.x->f;
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}
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int ptr_I_div0() {
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X x;
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x.f = 1;
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Ptr r(x);
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x.f = 0;
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return 1 / *r.i;
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}
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int ptr_getF_div0() {
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X x;
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x.f = 1;
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Ptr r(x);
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x.f = 0;
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return 1 / r.getF();
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}
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int ptr_getI_div0() {
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X x;
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x.f = 1;
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Ptr r(x);
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x.f = 0;
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return 1 / r.getI();
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}
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// Val tests
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int val_F_div0() {
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X x;
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x.f = 0;
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Val r(x);
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x.f = 1;
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return 1 / r.x.f;
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}
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int val_I_div0() {
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X x;
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x.f = 0;
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Val r(x);
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x.f = 1;
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return 1 / r.i;
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}
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int val_getF_div0() {
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X x;
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x.f = 0;
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Val r(x);
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x.f = 1;
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return 1 / r.getF();
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}
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int val_getI_div0() {
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X x;
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x.f = 0;
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Val r(x);
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x.f = 1;
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return 1 / r.getI();
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}
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} // namespace reference_field
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