package jetbrains.mps.baseLanguage.util.plugin.refactorings;
/*Generated by MPS */
import org.jetbrains.mps.openapi.model.SNode;
import jetbrains.mps.internal.collections.runtime.ListSequence;
import jetbrains.mps.lang.smodel.generator.smodelAdapter.SLinkOperations;
import jetbrains.mps.smodel.adapter.structure.MetaAdapterFactory;
import jetbrains.mps.lang.smodel.generator.smodelAdapter.SNodeOperations;
import java.util.List;
import org.jetbrains.mps.openapi.language.SAbstractConcept;
import jetbrains.mps.internal.collections.runtime.IWhereFilter;
public class MethodOptimizer {
public MethodOptimizer() {
}
public static void optimize(SNode body) {
SNode lastStatement = ListSequence.fromList(SLinkOperations.getChildren(body, MetaAdapterFactory.getContainmentLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc56b200L, 0xf8cc6bf961L, "statement"))).last();
if (SNodeOperations.isInstanceOf(lastStatement, MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc67c7feL, "jetbrains.mps.baseLanguage.structure.ReturnStatement"))) {
SNode lastReturn = SNodeOperations.cast(lastStatement, MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc67c7feL, "jetbrains.mps.baseLanguage.structure.ReturnStatement"));
if ((SNodeOperations.isInstanceOf(SLinkOperations.getTarget(lastReturn, MetaAdapterFactory.getContainmentLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc67c7feL, 0xf8cc6bf96cL, "expression")), MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c77f1e98L, "jetbrains.mps.baseLanguage.structure.VariableReference")) && SNodeOperations.isInstanceOf(SLinkOperations.getTarget(SNodeOperations.cast(SLinkOperations.getTarget(lastReturn, MetaAdapterFactory.getContainmentLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc67c7feL, 0xf8cc6bf96cL, "expression")), MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c77f1e98L, "jetbrains.mps.baseLanguage.structure.VariableReference")), MetaAdapterFactory.getReferenceLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c77f1e98L, 0xf8cc6bf960L, "variableDeclaration")), MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc67c7efL, "jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration")))) {
optimizeAssignmentFollowedByReturn(body, lastReturn, SNodeOperations.cast(SLinkOperations.getTarget(lastReturn, MetaAdapterFactory.getContainmentLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc67c7feL, 0xf8cc6bf96cL, "expression")), MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c77f1e98L, "jetbrains.mps.baseLanguage.structure.VariableReference")));
}
if ((SNodeOperations.isInstanceOf(SLinkOperations.getTarget(lastReturn, MetaAdapterFactory.getContainmentLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc67c7feL, 0xf8cc6bf96cL, "expression")), MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c77f1e98L, "jetbrains.mps.baseLanguage.structure.VariableReference")) && SNodeOperations.isInstanceOf(SLinkOperations.getTarget(SNodeOperations.cast(SLinkOperations.getTarget(lastReturn, MetaAdapterFactory.getContainmentLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc67c7feL, 0xf8cc6bf96cL, "expression")), MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c77f1e98L, "jetbrains.mps.baseLanguage.structure.VariableReference")), MetaAdapterFactory.getReferenceLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c77f1e98L, 0xf8cc6bf960L, "variableDeclaration")), MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc67c7efL, "jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration")))) {
optimizeVariableFollowedByReturn(body, lastReturn, SNodeOperations.cast(SLinkOperations.getTarget(lastReturn, MetaAdapterFactory.getContainmentLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc67c7feL, 0xf8cc6bf96cL, "expression")), MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c77f1e98L, "jetbrains.mps.baseLanguage.structure.VariableReference")));
}
}
}
public static void removeUnusedDeclarations(SNode body) {
List<SNode> references = ListSequence.fromList(SNodeOperations.getNodeDescendants(body, MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c77f1e98L, "jetbrains.mps.baseLanguage.structure.VariableReference"), false, new SAbstractConcept[]{})).where(new IWhereFilter<SNode>() {
public boolean accept(SNode it) {
return SNodeOperations.isInstanceOf(SLinkOperations.getTarget(SNodeOperations.cast(it, MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c77f1e98L, "jetbrains.mps.baseLanguage.structure.VariableReference")), MetaAdapterFactory.getReferenceLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c77f1e98L, 0xf8cc6bf960L, "variableDeclaration")), MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc67c7efL, "jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration"));
}
}).toListSequence();
for (SNode declaration : ListSequence.fromList(SNodeOperations.getNodeDescendants(body, MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc67c7efL, "jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration"), false, new SAbstractConcept[]{}))) {
removeUnusedDeclaration(references, declaration);
}
}
public static void removeUnusedDeclaration(List<SNode> references, final SNode declaration) {
if (ListSequence.fromList(references).where(new IWhereFilter<SNode>() {
public boolean accept(SNode it) {
return SLinkOperations.getTarget(it, MetaAdapterFactory.getReferenceLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c77f1e98L, 0xf8cc6bf960L, "variableDeclaration")) == declaration;
}
}).isEmpty() && SNodeOperations.isInstanceOf(SNodeOperations.getParent(declaration), MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc67c7f0L, "jetbrains.mps.baseLanguage.structure.LocalVariableDeclarationStatement"))) {
SNodeOperations.deleteNode(SNodeOperations.getParent(declaration));
}
}
public static void optimizeAssignmentFollowedByReturn(SNode body, SNode lastReturn, SNode variableReference) {
List<SNode> statements = SLinkOperations.getChildren(body, MetaAdapterFactory.getContainmentLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc56b200L, 0xf8cc6bf961L, "statement"));
int size = ListSequence.fromList(statements).count();
if (size < 2) {
return;
}
// what if statement is not on line of size -2?
SNode beforeLastStatement = ListSequence.fromList(statements).getElement(size - 2);
if (SNodeOperations.isInstanceOf(beforeLastStatement, MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc56b213L, "jetbrains.mps.baseLanguage.structure.ExpressionStatement"))) {
SNode expressionStatement = SNodeOperations.cast(beforeLastStatement, MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc56b213L, "jetbrains.mps.baseLanguage.structure.ExpressionStatement"));
if (SNodeOperations.isInstanceOf(SLinkOperations.getTarget(expressionStatement, MetaAdapterFactory.getContainmentLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc56b213L, 0xf8cc56b214L, "expression")), MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c77f1e96L, "jetbrains.mps.baseLanguage.structure.AssignmentExpression"))) {
SNode assignment = SNodeOperations.cast(SLinkOperations.getTarget(expressionStatement, MetaAdapterFactory.getContainmentLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc56b213L, 0xf8cc56b214L, "expression")), MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c77f1e96L, "jetbrains.mps.baseLanguage.structure.AssignmentExpression"));
if ((SNodeOperations.isInstanceOf(SLinkOperations.getTarget(assignment, MetaAdapterFactory.getContainmentLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0x11b0d00332cL, 0xf8c77f1e97L, "lValue")), MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c77f1e98L, "jetbrains.mps.baseLanguage.structure.VariableReference")) && SNodeOperations.isInstanceOf(SLinkOperations.getTarget(SNodeOperations.cast(SLinkOperations.getTarget(assignment, MetaAdapterFactory.getContainmentLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0x11b0d00332cL, 0xf8c77f1e97L, "lValue")), MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c77f1e98L, "jetbrains.mps.baseLanguage.structure.VariableReference")), MetaAdapterFactory.getReferenceLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c77f1e98L, 0xf8cc6bf960L, "variableDeclaration")), MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc67c7efL, "jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration")))) {
SNode reference2 = SNodeOperations.cast(SLinkOperations.getTarget(assignment, MetaAdapterFactory.getContainmentLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0x11b0d00332cL, 0xf8c77f1e97L, "lValue")), MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c77f1e98L, "jetbrains.mps.baseLanguage.structure.VariableReference"));
if (SLinkOperations.getTarget(variableReference, MetaAdapterFactory.getReferenceLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c77f1e98L, 0xf8cc6bf960L, "variableDeclaration")) == SLinkOperations.getTarget(reference2, MetaAdapterFactory.getReferenceLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c77f1e98L, 0xf8cc6bf960L, "variableDeclaration"))) {
SLinkOperations.setTarget(lastReturn, MetaAdapterFactory.getContainmentLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc67c7feL, 0xf8cc6bf96cL, "expression"), SLinkOperations.getTarget(assignment, MetaAdapterFactory.getContainmentLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0x11b0d00332cL, 0xf8c77f1e99L, "rValue")));
SNodeOperations.deleteNode(beforeLastStatement);
if (SNodeOperations.isInstanceOf(SLinkOperations.getTarget(variableReference, MetaAdapterFactory.getReferenceLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c77f1e98L, 0xf8cc6bf960L, "variableDeclaration")), MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc67c7efL, "jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration"))) {
removeUnusedDeclaration(ListSequence.fromList(SNodeOperations.getNodeDescendants(body, MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c77f1e98L, "jetbrains.mps.baseLanguage.structure.VariableReference"), false, new SAbstractConcept[]{})).where(new IWhereFilter<SNode>() {
public boolean accept(SNode it) {
return SNodeOperations.isInstanceOf(SLinkOperations.getTarget(SNodeOperations.cast(it, MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c77f1e98L, "jetbrains.mps.baseLanguage.structure.VariableReference")), MetaAdapterFactory.getReferenceLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c77f1e98L, 0xf8cc6bf960L, "variableDeclaration")), MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc67c7efL, "jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration"));
}
}).toListSequence(), SNodeOperations.cast(SLinkOperations.getTarget(variableReference, MetaAdapterFactory.getReferenceLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c77f1e98L, 0xf8cc6bf960L, "variableDeclaration")), MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc67c7efL, "jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration")));
}
}
}
}
}
}
public static void optimizeVariableFollowedByReturn(SNode body, SNode lastReturn, SNode variableReference) {
List<SNode> statements = SLinkOperations.getChildren(body, MetaAdapterFactory.getContainmentLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc56b200L, 0xf8cc6bf961L, "statement"));
int size = ListSequence.fromList(statements).count();
if (size < 2) {
return;
}
SNode berforeLastStatement = ListSequence.fromList(statements).getElement(size - 2);
if (SNodeOperations.isInstanceOf(berforeLastStatement, MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc67c7f0L, "jetbrains.mps.baseLanguage.structure.LocalVariableDeclarationStatement"))) {
SNode declarationStatement = SNodeOperations.cast(berforeLastStatement, MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc67c7f0L, "jetbrains.mps.baseLanguage.structure.LocalVariableDeclarationStatement"));
if (SLinkOperations.getTarget(declarationStatement, MetaAdapterFactory.getContainmentLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc67c7f0L, 0xf8cc67c7f1L, "localVariableDeclaration")) == SLinkOperations.getTarget(variableReference, MetaAdapterFactory.getReferenceLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c77f1e98L, 0xf8cc6bf960L, "variableDeclaration"))) {
SLinkOperations.setTarget(lastReturn, MetaAdapterFactory.getContainmentLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc67c7feL, 0xf8cc6bf96cL, "expression"), SLinkOperations.getTarget(SLinkOperations.getTarget(declarationStatement, MetaAdapterFactory.getContainmentLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc67c7f0L, 0xf8cc67c7f1L, "localVariableDeclaration")), MetaAdapterFactory.getContainmentLink(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8c37a7f6eL, 0xf8c37f506eL, "initializer")));
SNodeOperations.deleteNode(berforeLastStatement);
}
}
}
}