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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package org.intellij.sdk.language.findUsages;
import com.intellij.lang.cacheBuilder.DefaultWordsScanner;
import com.intellij.lang.cacheBuilder.WordsScanner;
import com.intellij.lang.findUsages.FindUsagesProvider;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiNamedElement;
import com.intellij.psi.tree.TokenSet;
import org.intellij.sdk.language.SdLexerAdapter;
import org.intellij.sdk.language.psi.SdDeclaration;
import org.intellij.sdk.language.psi.SdIdentifierVal;
import org.intellij.sdk.language.psi.SdIdentifierWithDashVal;
import org.intellij.sdk.language.psi.SdTypes;
import org.intellij.sdk.language.psi.impl.SdNamedElementImpl;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
/**
* This class is used for the extension (in plugin.xml), to enable "find Usages" window using the plugin code.
* @author Shahar Ariel
*/
public class SdFindUsagesProvider implements FindUsagesProvider {
@Nullable
@Override
public WordsScanner getWordsScanner() {
return new DefaultWordsScanner(new SdLexerAdapter(),
TokenSet.create(SdTypes.ID_REG, SdTypes.ID_WITH_DASH_REG, SdTypes.IDENTIFIER_VAL,
SdTypes.IDENTIFIER_WITH_DASH_VAL),
TokenSet.create(SdTypes.COMMENT),
TokenSet.create(SdTypes.STRING_REG, SdTypes.INTEGER_REG, SdTypes.FLOAT_REG));
}
@Override
public boolean canFindUsagesFor(@NotNull PsiElement psiElement) {
return psiElement instanceof PsiNamedElement;
}
@Nullable
@Override
public String getHelpId(@NotNull PsiElement psiElement) {
return null;
}
@NotNull
@Override
public String getType(@NotNull PsiElement element) {
if (element instanceof SdDeclaration) {
return ((SdNamedElementImpl) element).getTypeName();
} else {
return "";
}
}
@NotNull
@Override
public String getDescriptiveName(@NotNull PsiElement element) {
return "";
}
@NotNull
@Override
public String getNodeText(@NotNull PsiElement element, boolean useFullName) {
if (element instanceof SdIdentifierVal || element instanceof SdIdentifierWithDashVal) {
String name = ((PsiNamedElement) element).getName();
return name != null ? name : "";
} else if (element instanceof SdDeclaration) {
String fullText = element.getNode().getText();
return fullText.substring(0, fullText.indexOf('{'));
} else {
return "";
}
}
}
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