| ... | @@ -281,6 +281,22 @@ pub const Allocator = struct { | ... | @@ -281,6 +281,22 @@ pub const Allocator = struct { |
| 281 | } | 281 | } |
| 282 | }; | 282 | }; |
| 283 | | 283 | |
| | 284 | var failAllocator = Allocator { |
| | 285 | .reallocFn = failAllocatorRealloc, |
| | 286 | .shrinkFn = failAllocatorShrink, |
| | 287 | }; |
| | 288 | fn failAllocatorRealloc(self: *Allocator, old_mem: []u8, old_align: u29, new_size: usize, new_align: u29) ![]u8 { |
| | 289 | return error.OutOfMemory; |
| | 290 | } |
| | 291 | fn failAllocatorShrink(self: *Allocator, old_mem: []u8, old_align: u29, new_size: usize, new_align: u29) []u8 { |
| | 292 | @panic("failAllocatorShrink should never be called because it cannot allocate"); |
| | 293 | } |
| | 294 | |
| | 295 | test "mem.Allocator basics" { |
| | 296 | testing.expectError(error.OutOfMemory, failAllocator.alloc(u8, 1)); |
| | 297 | testing.expectError(error.OutOfMemory, failAllocator.allocSentinel(u8, 1, 0)); |
| | 298 | } |
| | 299 | |
| 284 | /// Copy all of source into dest at position 0. | 300 | /// Copy all of source into dest at position 0. |
| 285 | /// dest.len must be >= source.len. | 301 | /// dest.len must be >= source.len. |
| 286 | /// dest.ptr must be <= src.ptr. | 302 | /// dest.ptr must be <= src.ptr. |
Jonathan Marler <johnnymarler@gmail.com> 2020-05-06 23:56:48-06:00