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Language Server Protocol implementation for 1C (BSL) - 1C:Enterprise 8 and OneScript languages.
/*
* This file is a part of BSL Language Server.
*
* Copyright (c) 2018-2024
* Alexey Sosnoviy , Nikita Fedkin and contributors
*
* SPDX-License-Identifier: LGPL-3.0-or-later
*
* BSL Language Server is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3.0 of the License, or (at your option) any later version.
*
* BSL Language Server is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with BSL Language Server.
*/
package com.github._1c_syntax.bsl.languageserver.diagnostics;
import com.github._1c_syntax.bsl.languageserver.context.DocumentContext;
import com.github._1c_syntax.bsl.languageserver.diagnostics.metadata.DiagnosticMetadata;
import com.github._1c_syntax.bsl.languageserver.diagnostics.metadata.DiagnosticSeverity;
import com.github._1c_syntax.bsl.languageserver.diagnostics.metadata.DiagnosticTag;
import com.github._1c_syntax.bsl.languageserver.diagnostics.metadata.DiagnosticType;
import com.github._1c_syntax.bsl.languageserver.providers.CodeActionProvider;
import com.github._1c_syntax.bsl.languageserver.utils.Ranges;
import com.github._1c_syntax.bsl.parser.BSLParser;
import org.antlr.v4.runtime.ParserRuleContext;
import org.eclipse.lsp4j.CodeAction;
import org.eclipse.lsp4j.CodeActionParams;
import org.eclipse.lsp4j.Diagnostic;
import org.eclipse.lsp4j.Range;
import org.eclipse.lsp4j.TextEdit;
import java.util.ArrayDeque;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.Deque;
import java.util.List;
@DiagnosticMetadata(
type = DiagnosticType.CODE_SMELL,
severity = DiagnosticSeverity.INFO,
minutesToFix = 1,
tags = {
DiagnosticTag.STANDARD
}
)
public class EmptyRegionDiagnostic extends AbstractListenerDiagnostic implements QuickFixProvider {
private int currentRegionLevel;
private int currentUsageLevel;
private final Deque regions = new ArrayDeque<>();
@Override
public void enterEveryRule(ParserRuleContext ctx) {
if (ctx instanceof BSLParser.RegionStartContext) {
currentRegionLevel++;
regions.push((BSLParser.RegionStartContext) ctx);
} else if (!(ctx instanceof BSLParser.PreprocessorContext
|| ctx instanceof BSLParser.RegionNameContext
|| ctx instanceof BSLParser.RegionEndContext
|| ctx instanceof BSLParser.StatementContext)
&& currentUsageLevel < currentRegionLevel) {
currentUsageLevel = currentRegionLevel;
}
}
@Override
public void exitEveryRule(ParserRuleContext ctx) {
if (ctx instanceof BSLParser.RegionEndContext && !regions.isEmpty()) {
BSLParser.RegionStartContext currentRegion = regions.pop();
if (currentUsageLevel < currentRegionLevel) {
diagnosticStorage.addDiagnostic(
Ranges.create(currentRegion.getParent(), ctx),
info.getMessage(currentRegion.regionName().getText())
);
} else if (currentRegionLevel == currentUsageLevel) {
currentUsageLevel--;
}
currentRegionLevel--;
}
}
@Override
public List getQuickFixes(
List diagnostics,
CodeActionParams params,
DocumentContext documentContext
) {
List textEdits = new ArrayList<>(diagnostics.size());
diagnostics
.stream()
.map(Diagnostic::getRange)
.sorted(Comparator.comparingInt(o -> o.getStart().getLine()))
.reduce((Range prev, Range curr) -> {
if (prev.getEnd().getLine() > curr.getStart().getLine()) {
return prev;
} else {
textEdits.add(new TextEdit(prev, ""));
return curr;
}
})
.ifPresent(lastRange -> textEdits.add(new TextEdit(lastRange, "")));
return CodeActionProvider.createCodeActions(
textEdits,
info.getResourceString("quickFixMessage"),
documentContext.getUri(),
diagnostics
);
}
}