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Dynamic scripting for the JVM
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package org.snapscript.tree;
import org.snapscript.core.Compilation;
import org.snapscript.core.Evaluation;
import org.snapscript.core.constraint.Constraint;
import org.snapscript.core.module.Module;
import org.snapscript.core.module.Path;
import org.snapscript.core.scope.Scope;
import org.snapscript.core.variable.Value;
public class Expression implements Compilation {
private final Evaluation[] list;
public Expression(Evaluation... list) {
this.list = list;
}
@Override
public Object compile(Module module, Path path, int line) throws Exception {
if(list.length > 1) {
return new CompileResult(list);
}
return list[0];
}
private static class CompileResult extends Evaluation {
private final Evaluation[] list;
public CompileResult(Evaluation... list) {
this.list = list;
}
@Override
public void define(Scope scope) throws Exception {
for(int i = 0; i < list.length; i++){
list[i].define(scope);
}
}
@Override
public Constraint compile(Scope scope, Constraint left) throws Exception {
return list[list.length -1].compile(scope, left);
}
@Override
public Value evaluate(Scope scope, Value left) throws Exception {
Value value = list[0].evaluate(scope, left);
for(int i = 1; i < list.length; i++){
value = list[i].evaluate(scope, left);
}
return value;
}
}
}
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