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package org.graalvm.wasm;
import com.oracle.truffle.api.CompilerDirectives.CompilationFinal;
public class TableRegistry {
private static final int INITIAL_TABLES_SIZE = 8;
@CompilationFinal(dimensions = 1) private WasmTable[] tables;
private int numTables;
public TableRegistry() {
this.tables = new WasmTable[INITIAL_TABLES_SIZE];
this.numTables = 0;
}
private void ensureCapacity() {
if (numTables == tables.length) {
final WasmTable[] updatedTables = new WasmTable[tables.length * 2];
System.arraycopy(tables, 0, updatedTables, 0, tables.length);
tables = updatedTables;
}
}
public int tableCount() {
return numTables;
}
private int allocateTableWith(WasmTable table) {
ensureCapacity();
int index = numTables;
tables[index] = table;
numTables++;
return index;
}
public int allocateExternalTable(WasmTable table) {
return allocateTableWith(table);
}
public int allocateTable(int initSize, int maxSize) {
return allocateTableWith(new WasmTable(initSize, maxSize));
}
public WasmTable table(int index) {
assert index < numTables;
return tables[index];
}
}