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getReceiverExpression() and getSelectorExpression() in JetDotQualifiedExpression using stubs

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This commit is contained in:
Pavel V. Talanov
2014-03-28 20:24:52 +04:00
parent 1002999921
commit 440441899b
1 changed files with 40 additions and 1 deletions
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compiler/frontend/src/org/jetbrains/jet/lang/psi/JetDotQualifiedExpression.java
+40 -1
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@@ -17,14 +17,20 @@
package org.jetbrains.jet.lang.psi;
import com.intellij.lang.ASTNode;
import com.intellij.openapi.diagnostic.Logger;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.jet.lang.psi.stubs.PsiJetPlaceHolderStub;
import org.jetbrains.jet.lang.psi.stubs.elements.JetStubElementTypes;
import org.jetbrains.jet.lexer.JetToken;
import static org.jetbrains.jet.lang.psi.JetImportDirective.IMPORT_DIRECTIVE_EXPRESSIONS;
public class JetDotQualifiedExpression extends JetExpressionImplStub<PsiJetPlaceHolderStub<JetDotQualifiedExpression>>
implements JetQualifiedExpression {
private static final Logger LOG = Logger.getInstance(JetDotQualifiedExpression.class);
public JetDotQualifiedExpression(@NotNull ASTNode node) {
super(node);
}
@@ -41,16 +47,49 @@ public class JetDotQualifiedExpression extends JetExpressionImplStub<PsiJetPlace
@NotNull
@Override
public JetExpression getReceiverExpression() {
PsiJetPlaceHolderStub<JetDotQualifiedExpression> stub = getStub();
if (stub != null) {
JetExpression[] childExpressionsByStub = getChildExpressionsByStub(stub);
if (childExpressionsByStub != null) {
return childExpressionsByStub[0];
}
}
return JetQualifiedExpressionImpl.instance$.getReceiverExpression(this);
}
@Nullable
@Override
public JetExpression getSelectorExpression() {
PsiJetPlaceHolderStub<JetDotQualifiedExpression> stub = getStub();
if (stub != null) {
JetExpression[] childExpressionsByStub = getChildExpressionsByStub(stub);
if (childExpressionsByStub != null && childExpressionsByStub.length == 2) {
return childExpressionsByStub[1];
}
}
return JetQualifiedExpressionImpl.instance$.getSelectorExpression(this);
}
@Nullable
private JetExpression[] getChildExpressionsByStub(@NotNull PsiJetPlaceHolderStub<JetDotQualifiedExpression> stub) {
if (stub.getParentStubOfType(JetImportDirective.class) == null) {
LOG.error("JetDotQualifiedExpression should only have stubs inside import directives.\n " +
"Stubs were created for:\n " + getText() +
"\nFile text:\n" + getContainingFile().getText());
return null;
}
else {
JetExpression[] expressions = stub.getChildrenByType(IMPORT_DIRECTIVE_EXPRESSIONS, new JetExpression[] {});
if (expressions.length < 1 || expressions.length > 2) {
LOG.error("Invalid stub structure. DOT_QUALIFIED_EXPRESSION must have one or two children. Was: " + expressions.length +
"\nFile text:\n" + getContainingFile().getText());
return null;
}
return expressions;
}
}
@NotNull
@Override
public ASTNode getOperationTokenNode() {