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improve prepare

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This commit is contained in:
vms 2019-10-31 01:17:09 +03:00
parent 29ec1d0e4f
commit 9a3bd83dbf
2 changed files with 9 additions and 10 deletions
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2
project/SbtCommons.scala
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@ -16,7 +16,7 @@ object SbtCommons {
val commons = Seq(
scalaV,
version := "0.1.1",
version := "0.1.2",
fork in Test := true,
parallelExecution in Test := false,
fork in IntegrationTest := true,

17
src/main/rust/src/vm/prepare.rs
View File

@ -23,7 +23,7 @@ use parity_wasm::elements;
use crate::vm::config::Config;
use crate::vm::errors::InitializationError;
use parity_wasm::elements::{MemorySection, MemoryType, ResizableLimits};
use parity_wasm::elements::{MemorySection, MemoryType};
struct ModulePreparator {
module: elements::Module,
@ -40,20 +40,19 @@ impl<'a> ModulePreparator {
let Self { mut module } = self;
// At now, there is could be only one memory section, so
// it needs just to extract previous initial page count, delete existing memory section
let limits = match module.memory_section_mut() {
// it needs just to extract previous initial page count,
// delete an old entry and add create a new one with updated limits
let mem_initial = match module.memory_section_mut() {
Some(section) => match section.entries_mut().pop() {
Some(entry) => *entry.limits(),
None => ResizableLimits::new(0 as _, Some(mem_pages_count)),
Some(entry) => entry.limits().initial(),
None => 0,
},
None => ResizableLimits::new(0 as _, Some(mem_pages_count)),
None => 0,
};
let memory_entry = MemoryType::new(limits.initial(), Some(mem_pages_count));
let memory_entry = MemoryType::new(mem_initial, Some(mem_pages_count));
let mut default_mem_section = MemorySection::default();
// and create a new one
module
.memory_section_mut()
.unwrap_or_else(|| &mut default_mem_section)