/// <summary>
/// Reads the memory section with the given header.
/// </summary>
/// <param name="Header">The section header.</param>
/// <param name="Reader">The WebAssembly file reader.</param>
/// <returns>The parsed section.</returns>
public static MemorySection ReadSectionPayload(SectionHeader Header, BinaryWasmReader Reader)
{
long startPos = Reader.Position;
// Read the resizable limits.
uint count = Reader.ReadVarUInt32();
var limits = new List <MemoryType>();
for (uint i = 0; i < count; i++)
{
limits.Add(MemoryType.ReadFrom(Reader));
}
// Skip any remaining bytes.
var extraPayload = Reader.ReadRemainingPayload(startPos, Header);
return(new MemorySection(limits, extraPayload));
}
/// <summary>
/// Reads an imported value from the given binary WebAssembly reader.
/// </summary>
/// <param name="Reader">The WebAssembly reader.</param>
/// <returns>The imported value that was read.</returns>
public static ImportedValue ReadFrom(BinaryWasmReader Reader)
{
string moduleName = Reader.ReadString();
string fieldName = Reader.ReadString();
var kind = (ExternalKind)Reader.ReadByte();
switch (kind)
{
case ExternalKind.Function:
return(new ImportedFunction(moduleName, fieldName, Reader.ReadVarUInt32()));
case ExternalKind.Global:
return(new ImportedGlobal(moduleName, fieldName, GlobalType.ReadFrom(Reader)));
case ExternalKind.Memory:
return(new ImportedMemory(moduleName, fieldName, MemoryType.ReadFrom(Reader)));
case ExternalKind.Table:
return(new ImportedTable(moduleName, fieldName, TableType.ReadFrom(Reader)));
default:
throw new WasmException("Unknown imported value kind: " + kind);
}
}
/// <summary>
/// Creates a memory import from the given module name, field and memory type.
/// </summary>
/// <param name="ModuleName">The name of the module from which a value is imported.</param>
/// <param name="FieldName">The name of the value that is imported.</param>
/// <param name="Memory">A description of the imported memory.</param>
public ImportedMemory(string ModuleName, string FieldName, MemoryType Memory)
: base(ModuleName, FieldName)
{
this.Memory = Memory;
}
/// <summary>
/// Creates a memory import from the given module name, field and memory type.
/// </summary>
/// <param name="moduleName">The name of the module from which a value is imported.</param>
/// <param name="fieldName">The name of the value that is imported.</param>
/// <param name="memory">A description of the imported memory.</param>
public ImportedMemory(string moduleName, string fieldName, MemoryType memory)
: base(moduleName, fieldName)
{
this.Memory = memory;
}