/*
* Copyright 2013-2016 Sergey Ignatov, Alexander Zolotov, Florin Patan
*
* 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 com.goide.inspections;
import com.goide.psi.GoExpression;
import com.goide.psi.GoRangeClause;
import com.goide.psi.GoType;
import com.goide.psi.GoVisitor;
import com.goide.psi.impl.GoPsiImplUtil;
import com.goide.psi.impl.GoTypeUtil;
import com.intellij.codeInspection.LocalInspectionToolSession;
import com.intellij.codeInspection.ProblemHighlightType;
import com.intellij.codeInspection.ProblemsHolder;
import org.jetbrains.annotations.NotNull;
public class GoRangeIterationOnIllegalTypeInspection extends GoInspectionBase {
@NotNull
@Override
protected GoVisitor buildGoVisitor(@NotNull ProblemsHolder holder, @NotNull LocalInspectionToolSession session) {
return new GoVisitor() {
@Override
public void visitRangeClause(@NotNull GoRangeClause o) {
super.visitRangeClause(o);
GoExpression expression = o.getRangeExpression();
GoType type = expression != null ? expression.getGoType(null) : null;
if (type != null && !GoTypeUtil.isIterable(type)) {
holder.registerProblem(expression, "Cannot range over data (type " + GoPsiImplUtil.getText(type) + ")",
ProblemHighlightType.GENERIC_ERROR_OR_WARNING);
}
}
};
}
}