serene-simple/src/main/java/serene/simple/RootScope.java

49 lines
1.3 KiB
Java

package serene.simple;
import java.util.HashMap;
import serene.simple.builtin.PrintlnFn;
import serene.simple.builtin.QuitFn;
import serene.simple.builtin.PlusFn;
import serene.simple.builtin.NewFn;
public class RootScope extends BaseScope {
private final BaseScope parent;
private final HashMap<String, Object> symbolsMapping = new HashMap<String, Object>() {{
put("println", new PrintlnFn());
put("quit", new QuitFn());
put("+", new PlusFn());
put("System", System.class);
put("Boolean", Boolean.class);
put("String", String.class);
put("new", new NewFn());
}};
// "+", PlusFn,
// "-", MinusFn,
// "*", TimesFn,
// "/", ObelusFn,
// "mod", ModFn,
// "now", NowFn,
public RootScope() {
this.parent = null;
System.out.println(this.symbolsMapping.get("println"));
}
@Override
public Object lookupSymbol(String symbolName) {
if (this.symbolsMapping.containsKey(symbolName)) {
return this.symbolsMapping.get(symbolName);
}
else {
throw new RuntimeException(String.format("Symbol '%s' is not defined in this scope.",
symbolName));
}
}
public void insertSymbol(String symbolName, Object symbolValue) {
this.symbolsMapping.put(symbolName, symbolValue);
}
}