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wasm_interp: tests for memory allocation instructions

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Brian Carroll 2022-11-25 16:51:36 +00:00
parent 06f3726e35
commit 2bd67a3292
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3 changed files with 59 additions and 7 deletions
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10
crates/wasm_module/src/sections.rs
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@ -790,6 +790,16 @@ impl<'a> MemorySection<'a> {
};
Ok(min_pages * MemorySection::PAGE_SIZE)
}
pub fn max_bytes(&self) -> Result<Option<u32>, ParseError> {
let mut cursor = 0;
let memory_limits = Limits::parse((), &self.bytes, &mut cursor)?;
let bytes = match memory_limits {
Limits::Min(_) => None,
Limits::MinMax(_, pages) => Some(pages * MemorySection::PAGE_SIZE),
};
Ok(bytes)
}
}
section_impl!(MemorySection, SectionId::Memory);