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Add memory_grow.wast test file.

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This commit is contained in:
Steve Akinyemi
2018-11-17 22:13:59 +01:00
parent ba6bc71019
commit e7923d3b32
5 changed files with 1615 additions and 8 deletions
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13
src/webassembly/instance.rs
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@ -508,13 +508,14 @@ extern "C" fn grow_memory(size: u32, memory_index: u32, instance: &mut Instance)
let old_mem_size = instance
.memory_mut(memory_index as usize)
.grow(size)
.unwrap_or(i32::max_value()); // Should be -1 ?
.unwrap_or(-1);
// Get new memory bytes
let new_mem_bytes = (old_mem_size as usize + size as usize) * LinearMemory::WASM_PAGE_SIZE;
// Update data_pointer
instance.data_pointers.memories.get_unchecked_mut(memory_index as usize).len = new_mem_bytes;
if old_mem_size != -1 {
// Get new memory bytes
let new_mem_bytes = (old_mem_size as usize + size as usize) * LinearMemory::WASM_PAGE_SIZE;
// Update data_pointer
instance.data_pointers.memories.get_unchecked_mut(memory_index as usize).len = new_mem_bytes;
}
old_mem_size
}