public long getFuncDataValue(GoFuncDataTable tableIndex) throws IOException {
		if (tableIndex == null || tableIndex.ordinal() < 0 || tableIndex.ordinal() >= nfuncdata) {
			return -1;
		}
		long gofuncoffset = getModuledata().getGofunc();
		if (gofuncoffset == 0) {
			return -1;
		}
		long off = getFuncDataPtr(tableIndex.ordinal());
		return off == -1 ? null : gofuncoffset + off;
	}
Returns a value associated with this function.

@param tableIndex {@link GoFuncDataTable} enum
@return requested value, or -1 if the requested table index is not present for this function
@throws IOException if error reading lookup data
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/golang/rtti/GoFuncData.java