mirror of
https://github.com/JakeHillion/object-introspection.git
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e1b16a3d7e
References must always have a value, so are semantically clearer than pointers for variables which must always be set. No functional changes.
115 lines
3.4 KiB
C++
115 lines
3.4 KiB
C++
#include <gtest/gtest.h>
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#include "oi/type_graph/AddPadding.h"
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#include "oi/type_graph/Types.h"
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#include "test/type_graph_utils.h"
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using namespace type_graph;
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TEST(AddPaddingTest, BetweenMembers) {
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auto myclass = Class{0, Class::Kind::Class, "MyClass", 16};
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auto myint8 = Primitive{Primitive::Kind::Int8};
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auto myint64 = Primitive{Primitive::Kind::Int64};
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myclass.members.push_back(Member{myint8, "n1", 0});
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myclass.members.push_back(Member{myint64, "n2", 8 * 8});
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test(AddPadding::createPass(), {myclass}, R"(
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[0] Class: MyClass (size: 16)
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Member: n1 (offset: 0)
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Primitive: int8_t
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Member: __oi_padding (offset: 1)
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[1] Array: (length: 7)
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Primitive: int8_t
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Member: n2 (offset: 8)
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Primitive: int64_t
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)");
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}
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TEST(AddPaddingTest, AtEnd) {
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auto myclass = Class{0, Class::Kind::Struct, "MyStruct", 16};
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auto myint8 = Primitive{Primitive::Kind::Int8};
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auto myint64 = Primitive{Primitive::Kind::Int64};
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myclass.members.push_back(Member{myint64, "n1", 0});
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myclass.members.push_back(Member{myint8, "n2", 8 * 8});
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test(AddPadding::createPass(), {myclass}, R"(
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[0] Struct: MyStruct (size: 16)
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Member: n1 (offset: 0)
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Primitive: int64_t
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Member: n2 (offset: 8)
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Primitive: int8_t
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Member: __oi_padding (offset: 9)
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[1] Array: (length: 7)
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Primitive: int8_t
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)");
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}
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TEST(AddPaddingTest, UnionNotPadded) {
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auto myclass = Class{0, Class::Kind::Union, "MyUnion", 8};
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auto myint8 = Primitive{Primitive::Kind::Int8};
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auto myint64 = Primitive{Primitive::Kind::Int64};
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myclass.members.push_back(Member{myint64, "n1", 0});
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myclass.members.push_back(Member{myint8, "n2", 0});
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test(AddPadding::createPass(), {myclass}, R"(
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[0] Union: MyUnion (size: 8)
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Member: n1 (offset: 0)
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Primitive: int64_t
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Member: n2 (offset: 0)
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Primitive: int8_t
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)");
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}
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TEST(AddPaddingTest, Bitfields) {
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auto myclass = Class{0, Class::Kind::Class, "MyClass", 16};
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auto myint64 = Primitive{Primitive::Kind::Int64};
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auto myint16 = Primitive{Primitive::Kind::Int16};
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auto myint8 = Primitive{Primitive::Kind::Int8};
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Member b1{myint64, "b1", 0};
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b1.bitsize = 3;
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Member b2{myint8, "b2", 3};
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b2.bitsize = 2;
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// There may be a 0-sized bitfield between these two that does not appear
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// in the DWARF. This would add padding and push b3 to the next byte.
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Member b3{myint8, "b3", 8};
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b3.bitsize = 1;
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Member b4{myint64, "b4", 8 * 8};
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b4.bitsize = 24;
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Member n{myint16, "n", 12 * 8};
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myclass.members.push_back(b1);
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myclass.members.push_back(b2);
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myclass.members.push_back(b3);
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myclass.members.push_back(b4);
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myclass.members.push_back(n);
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test(AddPadding::createPass(), {myclass}, R"(
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[0] Class: MyClass (size: 16)
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Member: b1 (offset: 0, bitsize: 3)
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Primitive: int64_t
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Member: b2 (offset: 0.375, bitsize: 2)
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Primitive: int8_t
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Member: __oi_padding (offset: 0.625, bitsize: 3)
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Primitive: int64_t
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Member: b3 (offset: 1, bitsize: 1)
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Primitive: int8_t
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Member: __oi_padding (offset: 1.125, bitsize: 55)
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Primitive: int64_t
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Member: b4 (offset: 8, bitsize: 24)
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Primitive: int64_t
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Member: __oi_padding (offset: 11)
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[1] Array: (length: 1)
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Primitive: int8_t
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Member: n (offset: 12)
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Primitive: int16_t
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Member: __oi_padding (offset: 14)
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[2] Array: (length: 2)
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Primitive: int8_t
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)");
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}
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// TODO test we follow class members, templates, children
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