private ImportEntry(string module_str, string field_str, WebAssemblyExternalKind kind, object type)
{
this.module_str = module_str ?? throw new ArgumentException(nameof(module_str));
this.field_str = field_str ?? throw new ArgumentException(nameof(field_str));
this.kind = kind;
this.type = type ?? throw new ArgumentException(nameof(type));
}
public ExportEntry(string field_str, WebAssemblyExternalKind kind, uint index)
{
this.field_str = field_str ?? throw new ArgumentException(nameof(field_str));
this.index = index;
if (!Enum.IsDefined(typeof(WebAssemblyExternalKind), kind))
{
throw new ArgumentException(nameof(kind));
}
this.kind = kind;
}
public ImportEntry(BinaryReader reader)
{
uint module_len = LEB128.ReadUInt32(reader);
if (module_len > int.MaxValue)
{
throw new NotImplementedException($"String longer than {int.MaxValue} bytes not supported.");
}
module_str = Encoding.UTF8.GetString(reader.ReadBytes((int)module_len));
uint field_len = LEB128.ReadUInt32(reader);
if (field_len > int.MaxValue)
{
throw new NotImplementedException($"String longer than {int.MaxValue} bytes not supported.");
}
field_str = Encoding.UTF8.GetString(reader.ReadBytes((int)field_len));
byte tmp_kind = reader.ReadByte();
if (!Enum.IsDefined(typeof(WebAssemblyExternalKind), tmp_kind))
{
throw new Exception($"File is invalid. Expected 0, 1, 2, or 3, received '{tmp_kind}'.");
}
kind = (WebAssemblyExternalKind)tmp_kind;
switch (kind)
{
case WebAssemblyExternalKind.Function:
type = LEB128.ReadUInt32(reader);
break;
case WebAssemblyExternalKind.Table:
var table_tmp = new TableType(reader);
type = table_tmp;
break;
case WebAssemblyExternalKind.Memory:
var memory_tmp = new MemoryType(reader);
type = memory_tmp;
break;
case WebAssemblyExternalKind.Global:
var global_tmp = new GlobalType(reader);
type = global_tmp;
break;
}
}
public ExportEntry(BinaryReader reader)
{
uint field_len = LEB128.ReadUInt32(reader);
if (field_len > int.MaxValue)
{
throw new NotImplementedException($"String longer than {int.MaxValue} bytes not supported.");
}
field_str = Encoding.UTF8.GetString(reader.ReadBytes((int)field_len));
var tmp_kind = reader.ReadByte();
if (!Enum.IsDefined(typeof(WebAssemblyExternalKind), tmp_kind))
{
throw new Exception($"File is invalid. Expected byte 0, 1, 2, or 3, received '{tmp_kind}'.");
}
kind = (WebAssemblyExternalKind)tmp_kind;
index = LEB128.ReadUInt32(reader);
}
