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Zero initialize memory arrays

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This commit is contained in:
Leonardo Alt
2020-04-02 15:55:18 +02:00
parent 8d28089abc
commit 39ff0deb05
22 changed files with 475 additions and 35 deletions
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test/libsolidity/semanticTests/viaYul/array_function_pointers.sol
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contract C {
function f(uint n, uint m) public {
function() internal returns (uint)[] memory arr = new function() internal returns (uint)[](n);
arr[m]();
}
function f2(uint n, uint m, uint a, uint b) public {
function() internal returns (uint)[][] memory arr = new function() internal returns (uint)[][](n);
for (uint i = 0; i < n; ++i)
arr[i] = new function() internal returns (uint)[](m);
arr[a][b]();
}
function g(uint n, uint m) public {
function() external returns (uint)[] memory arr = new function() external returns (uint)[](n);
arr[m]();
}
function g2(uint n, uint m, uint a, uint b) public {
function() external returns (uint)[][] memory arr = new function() external returns (uint)[][](n);
for (uint i = 0; i < n; ++i)
arr[i] = new function() external returns (uint)[](m);
arr[a][b]();
}
}
// ====
// compileViaYul: also
// ----
// f(uint256,uint256): 1823621, 12323 -> FAILURE
// f2(uint256,uint256,uint256,uint256): 18723921, 1823621, 123, 12323 -> FAILURE
// g(uint256,uint256): 1823621, 12323 -> FAILURE
// g2(uint256,uint256,uint256,uint256): 18723921, 1823621, 123, 12323 -> FAILURE
test/libsolidity/semanticTests/viaYul/array_memory_allocation/array_2d_zeroed_memory_index_access.sol
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contract C {
uint test1;
uint test2;
uint test3;
uint test4;
uint test5;
uint test6;
uint test7;
mapping (string => uint) map;
function set(string memory s, uint n, uint m, uint a, uint b) public returns (uint) {
map[s] = 0;
uint[][] memory x = new uint[][](n);
for (uint i = 0; i < n; ++i)
x[i] = new uint[](m);
return x[a][b];
}
}
// ====
// compileViaYul: also
// ----
// set(string,uint256,uint256,uint256,uint256): 0xa0, 2, 4, 0, 0, 32, "01234567890123456789012345678901" -> 0
// set(string,uint256,uint256,uint256,uint256): 0xa0, 2, 4, 1, 3, 32, "01234567890123456789012345678901" -> 0
// set(string,uint256,uint256,uint256,uint256): 0xa0, 2, 4, 3, 3, 32, "01234567890123456789012345678901" -> FAILURE
// set(string,uint256,uint256,uint256,uint256): 0xa0, 2, 4, 1, 5, 32, "01234567890123456789012345678901" -> FAILURE
test/libsolidity/semanticTests/viaYul/array_memory_allocation/array_array_static.sol
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contract C {
uint test1;
uint test2;
uint test3;
uint test4;
uint test5;
uint test6;
uint test7;
mapping (string => uint) map;
function set(string memory s, uint n, uint m) public returns (uint) {
map[s] = 0;
uint[4][] memory x = new uint[4][](n);
return x[m][0];
}
}
// ====
// compileViaYul: also
// ----
// set(string,uint256,uint256): 0x60, 2, 0, 32, "01234567890123456789012345678901" -> 0
// set(string,uint256,uint256): 0x60, 2, 1, 32, "01234567890123456789012345678901" -> 0
// set(string,uint256,uint256): 0x60, 2, 2, 32, "01234567890123456789012345678901" -> FAILURE
// set(string,uint256,uint256): 0x60, 200, 199, 32, "01234567890123456789012345678901" -> 0
test/libsolidity/semanticTests/viaYul/array_memory_allocation/array_static_return_param_zeroed_memory_index_access.sol
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contract C {
uint test1;
uint test2;
uint test3;
uint test4;
uint test5;
uint test6;
uint test7;
mapping (string => uint) map;
function set(string memory s) public returns (uint[3] memory x, uint[2] memory y, uint[] memory z, uint t) {
map[s] = 0;
}
}
// ====
// compileViaYul: also
// ----
// set(string): 0x20, 32, "01234567890123456789012345678901" -> 0, 0, 0, 0, 0, 0xe0, 0, 0
test/libsolidity/semanticTests/viaYul/array_memory_allocation/array_static_zeroed_memory_index_access.sol
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contract C {
uint test1;
uint test2;
uint test3;
uint test4;
uint test5;
uint test6;
uint test7;
mapping (string => uint) map;
function set(string memory s) public returns (uint) {
map[s] = 0;
uint[3] memory x;
return x[2];
}
}
// ====
// compileViaYul: also
// ----
// set(string): 0x20, 32, "01234567890123456789012345678901" -> 0
test/libsolidity/semanticTests/viaYul/array_memory_allocation/array_zeroed_memory_index_access.sol
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contract C {
uint test1;
uint test2;
uint test3;
uint test4;
uint test5;
uint test6;
uint test7;
mapping (string => uint) map;
function set(string memory s, uint n, uint a) public returns (uint) {
map[s] = 0;
uint[] memory x = new uint[](n);
return x[a];
}
}
// ====
// compileViaYul: also
// ----
// set(string,uint256,uint256): 0x60, 5, 0, 32, "01234567890123456789012345678901" -> 0
// set(string,uint256,uint256): 0x60, 5, 1, 32, "01234567890123456789012345678901" -> 0
// set(string,uint256,uint256): 0x60, 5, 4, 32, "01234567890123456789012345678901" -> 0
// set(string,uint256,uint256): 0x60, 5, 5, 32, "01234567890123456789012345678901" -> FAILURE
test/libsolidity/semanticTests/viaYul/function_pointers.sol
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contract C {
function f() public {
function() internal returns (uint) _f;
_f();
}
function g() public {
function() external returns (uint) _g;
_g();
}
function h1() internal returns (function() internal returns (uint) _h) {}
function h2() public {
h1()();
}
function k1() internal returns (function() external returns (uint) _k) {}
function k2() public {
k1()();
}
}
// ====
// compileViaYul: also
// ----
// f() -> FAILURE
// g() -> FAILURE
// h2() -> FAILURE
// k2() -> FAILURE
test/libsolidity/semanticTests/viaYul/return_storage_pointers.sol
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contract C {
uint[] arr1;
uint[][] arr2;
function f() internal returns (uint[] storage ptr1, uint[][] storage ptr2) {
ptr1 = arr1;
ptr2 = arr2;
}
function g() public returns (uint, uint) {
return (arr1.length, arr2.length);
}
}
// ====
// compileViaYul: also
// ----
// g() -> 0, 0