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/*
* SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
*
* SPDX-License-Identifier: EPL-2.0
*/
/*
* generated by Xtext 2.26.0.M2
*/
package tools.refinery.language.formatting2;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.xtext.formatting2.AbstractJavaFormatter;
import org.eclipse.xtext.formatting2.IFormattableDocument;
import org.eclipse.xtext.formatting2.IHiddenRegionFormatter;
import org.eclipse.xtext.formatting2.regionaccess.ISemanticRegionsFinder;
import org.eclipse.xtext.formatting2.regionaccess.ISequentialRegion;
import org.eclipse.xtext.xbase.lib.Procedures.Procedure1;
import tools.refinery.language.model.problem.*;
@SuppressWarnings("UnstableApiUsage")
public class ProblemFormatter extends AbstractJavaFormatter {
protected void format(Problem problem, IFormattableDocument doc) {
doc.prepend(problem, this::noSpace);
var region = regionFor(problem);
doc.prepend(region.feature(ProblemPackage.Literals.NAMED_ELEMENT__NAME), this::oneSpace);
doc.prepend(region.keyword("."), this::noSpace);
appendNewLines(doc, region.keyword("."), this::twoNewLines);
for (var statement : problem.getStatements()) {
doc.format(statement);
}
}
protected void format(Assertion assertion, IFormattableDocument doc) {
surroundNewLines(doc, assertion, this::singleNewLine);
var region = regionFor(assertion);
doc.append(region.feature(ProblemPackage.Literals.ASSERTION__DEFAULT), this::oneSpace);
doc.append(region.feature(ProblemPackage.Literals.ASSERTION__RELATION), this::noSpace);
formatParenthesizedList(region, doc);
for (var argument : assertion.getArguments()) {
doc.format(argument);
}
var colon = region.keyword(":");
boolean abbreviated = colon == null;
if (!abbreviated) {
doc.prepend(colon, this::noSpace);
doc.append(colon, this::oneSpace);
}
var value = assertion.getValue();
if (value != null) {
var valueRegion = regionForEObject(value);
// Avoid clash between noSpace after ASSERTION_DEFAULT and noSpace after the 0-length region
// for a true LogicAssertionValue if the abbreviated form of assertion (no : operator) is used.
if (abbreviated && valueRegion != null && valueRegion.getLength() > 0) {
doc.append(value, this::noSpace);
}
doc.format(value);
}
doc.prepend(region.keyword("."), this::noSpace);
}
protected void format(ClassDeclaration classDeclaration, IFormattableDocument doc) {
surroundNewLines(doc, classDeclaration, this::twoNewLines);
var region = regionFor(classDeclaration);
doc.append(region.feature(ProblemPackage.Literals.CLASS_DECLARATION__ABSTRACT), this::oneSpace);
doc.append(region.keyword("class"), this::oneSpace);
doc.surround(region.keyword("extends"), this::oneSpace);
formatList(region, ",", doc);
doc.prepend(region.keyword("{"), this::oneSpace);
doc.append(region.keyword("{"), it -> it.setNewLines(1, 1, 2));
doc.prepend(region.keyword("}"), it -> it.setNewLines(1, 1, 2));
doc.interior(region.keyword("{"), region.keyword("}"), IHiddenRegionFormatter::indent);
doc.prepend(region.keyword("."), this::noSpace);
for (var featureDeclaration : classDeclaration.getFeatureDeclarations()) {
doc.format(featureDeclaration);
}
}
protected void format(EnumDeclaration enumDeclaration, IFormattableDocument doc) {
surroundNewLines(doc, enumDeclaration, this::twoNewLines);
var region = regionFor(enumDeclaration);
doc.append(region.keyword("enum"), this::oneSpace);
doc.prepend(region.keyword("{"), this::oneSpace);
doc.append(region.keyword("{"), it -> it.setNewLines(1, 1, 2));
doc.prepend(region.keyword("}"), it -> it.setNewLines(1, 1, 2));
doc.interior(region.keyword("{"), region.keyword("}"), IHiddenRegionFormatter::indent);
doc.prepend(region.keyword("."), this::noSpace);
}
protected void format(PredicateDefinition predicateDefinition, IFormattableDocument doc) {
surroundNewLines(doc, predicateDefinition, this::twoNewLines);
var region = regionFor(predicateDefinition);
doc.append(region.keyword("pred"), this::oneSpace);
doc.append(region.feature(ProblemPackage.Literals.NAMED_ELEMENT__NAME), this::noSpace);
formatParenthesizedList(region, doc);
doc.surround(region.keyword("<->"), this::oneSpace);
formatList(region, ";", doc);
doc.prepend(region.keyword("."), this::noSpace);
for (var parameter : predicateDefinition.getParameters()) {
doc.format(parameter);
}
for (var body : predicateDefinition.getBodies()) {
doc.format(body);
}
}
protected void format(Parameter parameter, IFormattableDocument doc) {
doc.append(regionFor(parameter).feature(ProblemPackage.Literals.PARAMETER__PARAMETER_TYPE), this::oneSpace);
}
protected void format(Conjunction conjunction, IFormattableDocument doc) {
var region = regionFor(conjunction);
formatList(region, ",", doc);
for (var literal : conjunction.getLiterals()) {
doc.format(literal);
}
}
protected void format(NegationExpr literal, IFormattableDocument doc) {
var region = regionFor(literal);
doc.append(region.keyword("!"), this::noSpace);
doc.format(literal.getBody());
}
protected void format(Atom atom, IFormattableDocument doc) {
var region = regionFor(atom);
doc.append(region.feature(ProblemPackage.Literals.ATOM__RELATION), this::noSpace);
doc.append(region.feature(ProblemPackage.Literals.ATOM__TRANSITIVE_CLOSURE), this::noSpace);
formatParenthesizedList(region, doc);
for (var argument : atom.getArguments()) {
doc.format(argument);
}
}
protected void format(NodeDeclaration nodeDeclaration, IFormattableDocument doc) {
surroundNewLines(doc, nodeDeclaration, this::singleNewLine);
var region = regionFor(nodeDeclaration);
doc.append(region.keyword("declare"), this::oneSpace);
doc.append(region.feature(ProblemPackage.Literals.NODE_DECLARATION__KIND), this::oneSpace);
formatList(region, ",", doc);
doc.prepend(region.keyword("."), this::noSpace);
}
protected void formatParenthesizedList(ISemanticRegionsFinder region, IFormattableDocument doc) {
doc.append(region.keyword("("), this::noSpace);
doc.prepend(region.keyword(")"), this::noSpace);
formatList(region, ",", doc);
}
protected void formatList(ISemanticRegionsFinder region, String separator, IFormattableDocument doc) {
for (var comma : region.keywords(separator)) {
doc.prepend(comma, this::noSpace);
doc.append(comma, this::oneSpace);
}
}
protected void singleNewLine(IHiddenRegionFormatter it) {
it.setNewLines(1, 1, 2);
}
protected void twoNewLines(IHiddenRegionFormatter it) {
it.highPriority();
it.setNewLines(2);
}
protected void surroundNewLines(IFormattableDocument doc, EObject eObject,
Procedure1<? super IHiddenRegionFormatter> init) {
var region = doc.getRequest().getTextRegionAccess().regionForEObject(eObject);
preprendNewLines(doc, region, init);
appendNewLines(doc, region, init);
}
protected void preprendNewLines(IFormattableDocument doc, ISequentialRegion region,
Procedure1<? super IHiddenRegionFormatter> init) {
if (region == null) {
return;
}
var previousHiddenRegion = region.getPreviousHiddenRegion();
if (previousHiddenRegion == null) {
return;
}
if (previousHiddenRegion.getPreviousSequentialRegion() == null) {
doc.set(previousHiddenRegion, it -> it.setNewLines(0));
} else {
doc.set(previousHiddenRegion, init);
}
}
protected void appendNewLines(IFormattableDocument doc, ISequentialRegion region,
Procedure1<? super IHiddenRegionFormatter> init) {
if (region == null) {
return;
}
var nextHiddenRegion = region.getNextHiddenRegion();
if (nextHiddenRegion == null) {
return;
}
if (nextHiddenRegion.getNextSequentialRegion() == null) {
doc.set(nextHiddenRegion, it -> it.setNewLines(1));
} else {
doc.set(nextHiddenRegion, init);
}
}
}
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