// Copyright (c) 2013-2014, Webit Team. All Rights Reserved.
package webit.script.lang.method;
import webit.script.Context;
import webit.script.Template;
import webit.script.core.VariantIndexer;
import webit.script.core.ast.expressions.FunctionDeclare;
import webit.script.exceptions.ScriptRuntimeException;
import webit.script.lang.MethodDeclare;
import webit.script.util.StatementUtil;
/**
*
* @author Zqq
*/
public final class FunctionMethodDeclare implements MethodDeclare {
private final FunctionDeclare function;
private final Template template;
private final Object[] vars;
private final VariantIndexer[] indexers;
public FunctionMethodDeclare(FunctionDeclare function, Template template, Object[] vars, VariantIndexer[] indexers) {
this.function = function;
this.template = template;
this.vars = vars;
this.indexers = indexers;
}
public Object invoke(final Context context, final Object[] args) {
if (context.vars == this.vars) {
try {
return function.invoke(context, args);
} catch (Exception e) {
throw StatementUtil.castToScriptRuntimeException(e, function);
}
} else {
try {
final Object[] bakVars = context.vars;
final VariantIndexer[] bakIndexers = context.indexers;
final Object result;
context.vars = this.vars;
context.indexers = this.indexers;
result = function.invoke(context, args);
context.vars = bakVars;
context.indexers = bakIndexers;
return result;
} catch (Exception e) {
throw new ScriptRuntimeException(StatementUtil.castToScriptRuntimeException(e, function).setTemplate(template));
}
}
}
}