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/*
* SonarQube JavaScript Plugin
* Copyright (C) 2011-2018 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program 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 of the License, or (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.javascript.tree.impl.expression;
import com.google.common.collect.Iterators;
import java.util.Iterator;
import java.util.List;
import javax.annotation.Nullable;
import org.sonar.javascript.tree.impl.declaration.FunctionTreeImpl;
import org.sonar.javascript.tree.symbols.type.FunctionType;
import org.sonar.javascript.tree.symbols.type.TypableTree;
import org.sonar.plugins.javascript.api.symbols.Type;
import org.sonar.plugins.javascript.api.symbols.TypeSet;
import org.sonar.plugins.javascript.api.tree.Tree;
import org.sonar.plugins.javascript.api.tree.declaration.BindingElementTree;
import org.sonar.plugins.javascript.api.tree.declaration.ParameterListTree;
import org.sonar.plugins.javascript.api.tree.expression.FunctionExpressionTree;
import org.sonar.plugins.javascript.api.tree.expression.IdentifierTree;
import org.sonar.plugins.javascript.api.tree.flow.FlowGenericParameterClauseTree;
import org.sonar.plugins.javascript.api.tree.flow.FlowTypeAnnotationTree;
import org.sonar.plugins.javascript.api.tree.lexical.SyntaxToken;
import org.sonar.plugins.javascript.api.tree.statement.BlockTree;
import org.sonar.plugins.javascript.api.visitors.DoubleDispatchVisitor;
public class FunctionExpressionTreeImpl extends FunctionTreeImpl implements FunctionExpressionTree, TypableTree {
private final SyntaxToken asyncToken;
private final SyntaxToken functionKeyword;
private final SyntaxToken star;
private final IdentifierTree name;
private final FlowGenericParameterClauseTree genericParameterClause;
private final ParameterListTree parameters;
private final FlowTypeAnnotationTree returnType;
private final BlockTree body;
private final Kind kind;
private Type functionType;
private FunctionExpressionTreeImpl(
@Nullable SyntaxToken asyncToken,
SyntaxToken functionKeyword,
@Nullable SyntaxToken star, IdentifierTree name,
@Nullable FlowGenericParameterClauseTree genericParameterClause,
ParameterListTree parameters, @Nullable FlowTypeAnnotationTree returnType, BlockTree body) {
this.asyncToken = asyncToken;
this.functionKeyword = functionKeyword;
this.star = star;
this.name = name;
this.genericParameterClause = genericParameterClause;
this.parameters = parameters;
this.returnType = returnType;
this.body = body;
this.kind = star == null ? Kind.FUNCTION_EXPRESSION : Kind.GENERATOR_FUNCTION_EXPRESSION;
this.functionType = FunctionType.create(this);
}
public static FunctionExpressionTree createGenerator(
SyntaxToken functionKeyword, SyntaxToken star, @Nullable IdentifierTree name, @Nullable FlowGenericParameterClauseTree genericParameterClause,
ParameterListTree parameters, @Nullable FlowTypeAnnotationTree returnType, BlockTree body
) {
return new FunctionExpressionTreeImpl(null, functionKeyword, star, name, genericParameterClause, parameters, returnType, body);
}
public static FunctionExpressionTree create(
@Nullable SyntaxToken asyncToken, SyntaxToken functionToken, @Nullable IdentifierTree name,
@Nullable FlowGenericParameterClauseTree genericParameterClause,
ParameterListTree parameters, @Nullable FlowTypeAnnotationTree returnType, BlockTree body
) {
return new FunctionExpressionTreeImpl(asyncToken, functionToken, null, name, genericParameterClause, parameters, returnType, body);
}
@Override
public SyntaxToken functionKeyword() {
return functionKeyword;
}
@Nullable
@Override
public SyntaxToken starToken() {
return star;
}
@Nullable
@Override
public IdentifierTree name() {
return name;
}
@Nullable
@Override
public FlowGenericParameterClauseTree genericParameterClause() {
return genericParameterClause;
}
@Nullable
@Override
public SyntaxToken asyncToken() {
return asyncToken;
}
@Override
public ParameterListTree parameterClause() {
return parameters;
}
@Nullable
@Override
public FlowTypeAnnotationTree returnType() {
return returnType;
}
@Override
public Kind getKind() {
return kind;
}
@Override
public BlockTree body() {
return body;
}
@Override
public List parameterList() {
return parameters.parameters();
}
@Override
public Iterator childrenIterator() {
return Iterators.forArray(asyncToken, functionKeyword, star, name, genericParameterClause, parameters, returnType, body);
}
@Override
public void accept(DoubleDispatchVisitor visitor) {
visitor.visitFunctionExpression(this);
}
@Override
public TypeSet types() {
TypeSet set = TypeSet.emptyTypeSet();
set.add(functionType);
return set;
}
@Override
public void add(Type type) {
throw new UnsupportedOperationException();
}
}