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/*
* Copyright 2016 Miroslav Janíček
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.sandius.rembulan.parser;
import net.sandius.rembulan.parser.ast.CallExpr;
import net.sandius.rembulan.parser.ast.Expr;
import net.sandius.rembulan.parser.ast.IndexExpr;
import net.sandius.rembulan.parser.ast.Name;
import net.sandius.rembulan.parser.ast.SourceInfo;
import net.sandius.rembulan.util.Check;
import java.util.List;
abstract class PostfixOp {
public abstract Expr on(Expr exp);
static class FieldAccess extends PostfixOp {
private final SourceInfo src;
private final Expr keyExpr;
public FieldAccess(SourceInfo src, Expr keyExpr) {
this.src = Check.notNull(src);
this.keyExpr = Check.notNull(keyExpr);
}
public Expr keyExpr() {
return keyExpr;
}
@Override
public IndexExpr on(Expr exp) {
return Exprs.index(src, exp, keyExpr);
}
}
static class Invoke extends PostfixOp {
private final Name method; // may be null
private final SourceElement> args;
public Invoke(SourceElement> args, Name method) {
this.args = Check.notNull(args);
this.method = method;
}
@Override
public CallExpr on(Expr exp) {
return method != null
? Exprs.methodCall(args.sourceInfo(), exp, method, args.element())
: Exprs.functionCall(args.sourceInfo(), exp, args.element());
}
}
}