public static bool DoDataStoreValidation(
IReadOnlyList <IndexEntry> idxEntries,
int operandSrc,
List <byte> expanded,
ref DataStoreIdx dstore)
{
// Check if we need to change the global store source
IndexEntry ie = idxEntries[(int)operandSrc];
if (dstore.Match(ie.type, ie.index) == false)
{
if (ie.type == IndexEntry.FnIdxType.Import)
{
Function.TransferInstruction(expanded, Instruction._global_chStoreImp);
Function.TransferInt32u(expanded, (uint)ie.index);
dstore.Set(DataStoreIdx.Location.Import, ie.index);
return(true);
}
else
{
Function.TransferInstruction(expanded, Instruction._global_chStoreLoc);
Function.TransferInt32u(expanded, (uint)ie.index);
dstore.Set(DataStoreIdx.Location.Local, ie.index);
return(true);
}
}
else
{
return(false);
}
}
public CtrlFrame PushCtrl(
Instruction opcode,
List <StackOpd> instk,
List <StackOpd> outstk,
DataStoreIdx memStore,
DataStoreIdx globStore,
DataStoreIdx tabStore)
{
CtrlFrame frame = new CtrlFrame();
frame.opcode = opcode;
frame.startTypes = instk;
frame.endTypes = outstk;
frame.unreachable = false;
frame.height = this.opds.Count;
frame.memoryStore = memStore;
frame.globalStore = globStore;
frame.tableStore = tabStore;
this.ctrls.Push(frame);
this.PushOpds(instk);
return(frame);
}
public static bool EnsureDefaulTable(IReadOnlyList <IndexEntry> tableIndices, List <byte> expanded, ref DataStoreIdx dsIdx)
{
if (dsIdx.loc != DataStoreIdx.Location.Unknown)
{
return(false);
}
if (tableIndices.Count == 0)
{
throw new System.Exception("No tables provided for a function that requires memory storage.");
}
IndexEntry ie = tableIndices[0];
if (ie.type == IndexEntry.FnIdxType.Local)
{
dsIdx.loc = DataStoreIdx.Location.Local;
dsIdx.index = ie.index;
Function.TransferInstruction(expanded, Instruction._SetTableStoreLoc);
Function.TransferInt32s(expanded, ie.index);
return(true);
}
else if (ie.type == IndexEntry.FnIdxType.Import)
{
dsIdx.loc = DataStoreIdx.Location.Import;
dsIdx.index = ie.index;
Function.TransferInstruction(expanded, Instruction._SetTableStoreImp);
Function.TransferInt32s(expanded, ie.index);
return(true);
}
throw new System.Exception("Encountered table from unknown source.");
}
