Java INode類代碼示例

import org.eclipse.xtext.nodemodel.INode; //導入依賴的package包/類
@Override
protected void emitUnassignedTokens(EObject semanticObject, ISynTransition transition, INode fromNode, INode toNode) {
	if (transition.getAmbiguousSyntaxes().isEmpty()) return;
	List<INode> transitionNodes = collectNodes(fromNode, toNode);
	for (AbstractElementAlias syntax : transition.getAmbiguousSyntaxes()) {
		List<INode> syntaxNodes = getNodesFor(transitionNodes, syntax);
		if (match_Disjunction_VerticalLineKeyword_0_1_1_0_a.equals(syntax))
			emit_Disjunction_VerticalLineKeyword_0_1_1_0_a(semanticObject, getLastNavigableState(), syntaxNodes);
		else if (match_Disjunction_VerticalLineKeyword_0_1_1_0_p.equals(syntax))
			emit_Disjunction_VerticalLineKeyword_0_1_1_0_p(semanticObject, getLastNavigableState(), syntaxNodes);
		else if (match_Disjunction_VerticalLineKeyword_1_1_0_a.equals(syntax))
			emit_Disjunction_VerticalLineKeyword_1_1_0_a(semanticObject, getLastNavigableState(), syntaxNodes);
		else if (match_Disjunction_VerticalLineKeyword_1_1_0_p.equals(syntax))
			emit_Disjunction_VerticalLineKeyword_1_1_0_p(semanticObject, getLastNavigableState(), syntaxNodes);
		else acceptNodes(getLastNavigableState(), syntaxNodes);
	}
}
 

import org.eclipse.xtext.nodemodel.INode; //導入依賴的package包/類
/**
 * Get JSDoc comment for the given element. The element may be an AST node such as <code>N4MethodDeclaration</code>
 * or a type model element such as <code>TMethod</code>. In the latter case, this method will follow the link to the
 * AST which may cause a load of the N4JS resource if it is not fully loaded (i.e. if only the TModule was loaded
 * from the Xtext index).
 * <p>
 * Thus, <b>this method may have a side effect on the containing resource of the given element</b>. If that is not
 * desired, use method {@link #getDocSafely(ResourceSet, EObject)} instead.
 */
public String getDoc(EObject element) {
	if (element == null)
		throw new IllegalArgumentException("element must not be null");
	if (element.eIsProxy()) {
		return null;
		// throw new IllegalArgumentException("element must not be proxy: " + element.toString());
	}

	final List<INode> docNodes = documentationProviderExt.getDocumentationNodes(element);
	if (!docNodes.isEmpty()) {
		final StringBuilder sb = new StringBuilder(docNodes.get(0).getText());
		for (int idx = 1; idx < docNodes.size(); idx++) {
			sb.append("\n").append(docNodes.get(idx).getText());
		}
		return sb.toString();
	}
	return null;
}
 

import org.eclipse.xtext.nodemodel.INode; //導入依賴的package包/類
@Override
public BigDecimal toValue(String string, INode node) {
	if (Strings.isEmpty(string))
		throw new N4JSValueConverterException(IssueCodes.getMessageForVCO_BINARYINT_CONVERT_EMPTY_STR(),
				IssueCodes.VCO_BINARYINT_CONVERT_EMPTY_STR, node, null);
	if (string.length() <= 2) {
		throw new N4JSValueConverterWithValueException(
				IssueCodes.getMessageForVCO_BINARYINT_CONVERT_TOO_SHORT(string),
				IssueCodes.VCO_BINARYINT_CONVERT_TOO_SHORT, node,
				BigDecimal.ZERO, null);
	}
	try {
		return new BigDecimal(new BigInteger(string.substring(2), 2));
	} catch (NumberFormatException e) {
		throw new N4JSValueConverterException(IssueCodes.getMessageForVCO_HEXINT_CONVERT_STR(string),
				IssueCodes.VCO_HEXINT_CONVERT_STR, node, null);
	}
}
 

import org.eclipse.xtext.nodemodel.INode; //導入依賴的package包/類
/**
 * Naive comment lookup, that doesn't consider parent. Returns comment that is closest to the lookup element. If
 * flag is provided includes doublestar comments into search. Doublestar comments are prioritized over single star
 * comments.
 *
 * Throws {@link InstantiationException} when it stumbles upon MultiLine comment that doesn't start with proper
 * markers (</*> and <*\/>)
 *
 * @param eObject
 *            element on which lookup is performed
 * @param considerDoubleStar
 *            swithc to include in luukup comments with double star
 * @return CommentCandidate for given eObject.
 * @throws InstantiationException
 *             if comment on element is malformatted.
 */
public CommentCandidate findJSDocComment(EObject eObject, boolean considerDoubleStar)
		throws InstantiationException {
	if (eObject == null) {
		return null;
	}

	List<INode> comments = findMultiLineComments(eObject);
	// fast result
	if (comments == null || comments.isEmpty()) {
		return null;
	}

	if (considerDoubleStar) {
		return pickCommentConsiderDoubleStar(comments);
	}
	return pickCommentNoDoubleStar(comments);
}
 

import org.eclipse.xtext.nodemodel.INode; //導入依賴的package包/類
/**
 * This is aware of warnings from the {@link N4JSStringValueConverter}.
 *
 * Issues from the parser are commonly treated as errors but here we want to create a warning.
 */
@Override
protected void addSyntaxErrors() {
	if (isValidationDisabled())
		return;
	// EList.add unnecessarily checks for uniqueness by default
	// so we use #addUnique below to save some CPU cycles for heavily broken
	// models
	BasicEList<Diagnostic> errorList = (BasicEList<Diagnostic>) getErrors();
	BasicEList<Diagnostic> warningList = (BasicEList<Diagnostic>) getWarnings();

	for (INode error : getParseResult().getSyntaxErrors()) {
		XtextSyntaxDiagnostic diagnostic = createSyntaxDiagnostic(error);
		String code = diagnostic.getCode();
		if (AbstractN4JSStringValueConverter.WARN_ISSUE_CODE.equals(code)
				|| RegExLiteralConverter.ISSUE_CODE.equals(code)
				|| LegacyOctalIntValueConverter.ISSUE_CODE.equals(code)) {
			warningList.addUnique(diagnostic);
		} else if (!InternalSemicolonInjectingParser.SEMICOLON_INSERTED.equals(code)) {
			errorList.addUnique(diagnostic);
		}
	}
}
 

import org.eclipse.xtext.nodemodel.INode; //導入依賴的package包/類
private XtextSyntaxDiagnostic createSyntaxDiagnostic(INode error) {
	SyntaxErrorMessage syntaxErrorMessage = error.getSyntaxErrorMessage();
	if (org.eclipse.xtext.diagnostics.Diagnostic.SYNTAX_DIAGNOSTIC_WITH_RANGE.equals(syntaxErrorMessage
			.getIssueCode())) {
		String[] issueData = syntaxErrorMessage.getIssueData();
		if (issueData.length == 1) {
			String data = issueData[0];
			int colon = data.indexOf(':');
			return new XtextSyntaxDiagnosticWithRange(error, Integer.valueOf(data.substring(0, colon)),
					Integer.valueOf(data.substring(colon + 1)), null) {
				@Override
				public int getLine() {
					return getNode().getTotalStartLine();
				}
			};
		}
	}
	return new XtextSyntaxDiagnostic(error);
}
 

import org.eclipse.xtext.nodemodel.INode; //導入依賴的package包/類
@Override
public String serializeCrossRef(EObject semanticObject, CrossReference crossref, EObject target, INode node,
		Acceptor errors) {
	if (((InternalEObject) target).eProxyURI() != null) {
		if (((InternalEObject) target).eProxyURI().toString().startsWith("#")) {
			return super.serializeCrossRef(semanticObject, crossref, getEObjectfromEProxy(semanticObject, target),
					node, errors);
		}
	}

	return super.serializeCrossRef(semanticObject, crossref, target, node, errors);

}
 

import org.eclipse.xtext.nodemodel.INode; //導入依賴的package包/類
@Override
protected void emitUnassignedTokens(EObject semanticObject, ISynTransition transition, INode fromNode, INode toNode) {
	if (transition.getAmbiguousSyntaxes().isEmpty()) return;
	List<INode> transitionNodes = collectNodes(fromNode, toNode);
	for (AbstractElementAlias syntax : transition.getAmbiguousSyntaxes()) {
		List<INode> syntaxNodes = getNodesFor(transitionNodes, syntax);
		acceptNodes(getLastNavigableState(), syntaxNodes);
	}
}
 

import org.eclipse.xtext.nodemodel.INode; //導入依賴的package包/類
@Override
public Location getLocation(EObject eObject) {
	INode node = NodeModelUtils.getNode(eObject);
	if (node != null) {
		return new Location(Type.XTEXT_LOCATION, node.getStartLine());
	}
	return new Location(Type.XTEXT_LOCATION, -1);
}
 

import org.eclipse.xtext.nodemodel.INode; //導入依賴的package包/類
/**
 * Select comment closest to lookup element. Assume comments to be ordered list. Includes comments with doublestar
 * in search results. DoubleStar comments are prioritized over singlestar comemnts.
 *
 * @param comments
 *            list of commnets on luukup elements
 * @throws InstantiationException
 *             if comment is malformed
 */
protected CommentCandidate pickCommentConsiderDoubleStar(List<INode> comments) throws InstantiationException {
	// one commemnt - wins
	if (comments.size() == 1) {
		return new CommentCandidate(comments.get(0).getText());
	}

	// multiple comments
	// arrList has reversed order
	ListIterator<INode> iter = comments.listIterator(comments.size());
	// so far best candidate
	String bestCandidateString = iter.previous().getText();
	if (bestCandidateString.startsWith("/**")) {
		return new CommentCandidate(bestCandidateString); // automatic win
	}
	// if we get here we have first single star comment, so
	// check if there is supreme candidate
	String candidateTextString = "";
	while (iter.hasPrevious()) {
		candidateTextString = iter.previous().getText();
		if (candidateTextString.startsWith("/**")) {
			bestCandidateString = candidateTextString;
			break; // first supreme wins
		}
	}
	return new CommentCandidate(bestCandidateString);
}
 

import org.eclipse.xtext.nodemodel.INode; //導入依賴的package包/類
@Override
public BigDecimal toValue(String string, INode node) {
	if (Strings.isEmpty(string))
		throw new ValueConverterException("Couldn't convert empty string to an int value.", node, null);
	try {
		return new BigDecimal(string);
	} catch (NumberFormatException e) {
		throw new ValueConverterException("Couldn't convert '" + string + "' to an int value.", node, e);
	}
}
 

import org.eclipse.xtext.nodemodel.INode; //導入依賴的package包/類
/**
 * Checks whether the dead code analysis produces the expected result: dead code found or no dead code found.
 *
 * @param expectation
 *            "dead code" or "no dead code"
 * @param offset
 *            the offset where the XPECT comment is used
 */
@Xpect
@ParameterParser(syntax = "('at' arg1=OFFSET)?")
public void deadCode(@StringExpectation IStringExpectation expectation,
		// @ThisResource XtextResource resource,
		INode offset) {
	if (offset == null) {
		return;
	}

	String actual = evaluateDeadCode(offset);

	expectation.assertEquals(actual);

}
 

import org.eclipse.xtext.nodemodel.INode; //導入依賴的package包/類
/***/
@Creates
public IEObjectCoveringRegion IEObjectCoveringRegion() {
	final boolean haveRegion = region != null;

	int offset = haveRegion ? region.getOffset() : this.matchedOffset;
	int length = haveRegion ? region.getLength() : 0;
	int endOffset = offset + length;
	EObject semanticObject = null;

	INode node = NodeModelUtils.findLeafNodeAtOffset(resource.getParseResult().getRootNode(), offset);
	while (node != null) {
		EObject actualObject = NodeModelUtils.findActualSemanticObjectFor(node);
		if (actualObject != null) {
			if (haveRegion) {
				int nodeEndOffset = node.getEndOffset();
				if (nodeEndOffset <= endOffset || semanticObject == null) {
					semanticObject = actualObject;
				}
				if (nodeEndOffset >= endOffset) {
					break;
				}
			} else { // no region given, just a matched offset
				if (semanticObject == null) {
					semanticObject = actualObject;
					break;
				}
			}
		}
		node = node.getParent();
	}
	return new EObjectCoveringRegion(semanticObject, offset);
}
 

import org.eclipse.xtext.nodemodel.INode; //導入依賴的package包/類
@Override
protected void emitUnassignedTokens(EObject semanticObject, ISynTransition transition, INode fromNode, INode toNode) {
	if (transition.getAmbiguousSyntaxes().isEmpty()) return;
	List<INode> transitionNodes = collectNodes(fromNode, toNode);
	for (AbstractElementAlias syntax : transition.getAmbiguousSyntaxes()) {
		List<INode> syntaxNodes = getNodesFor(transitionNodes, syntax);
		if (match_ProjectDescription___RightCurlyBracketKeyword_17_3_SourcesKeyword_17_0_LeftCurlyBracketKeyword_17_1__q.equals(syntax))
			emit_ProjectDescription___RightCurlyBracketKeyword_17_3_SourcesKeyword_17_0_LeftCurlyBracketKeyword_17_1__q(semanticObject, getLastNavigableState(), syntaxNodes);
		else if (match_ProjectDescription___RightCurlyBracketKeyword_18_3_ModuleFiltersKeyword_18_0_LeftCurlyBracketKeyword_18_1__q.equals(syntax))
			emit_ProjectDescription___RightCurlyBracketKeyword_18_3_ModuleFiltersKeyword_18_0_LeftCurlyBracketKeyword_18_1__q(semanticObject, getLastNavigableState(), syntaxNodes);
		else if (match_VersionConstraint_RightParenthesisKeyword_0_2_1_q.equals(syntax))
			emit_VersionConstraint_RightParenthesisKeyword_0_2_1_q(semanticObject, getLastNavigableState(), syntaxNodes);
		else acceptNodes(getLastNavigableState(), syntaxNodes);
	}
}
 

import org.eclipse.xtext.nodemodel.INode; //導入依賴的package包/類
private String getPropertyAsString(ParameterizedPropertyAccessExpression propAccessExpr) {
	final StringBuilder sb = new StringBuilder();
	for (INode node : NodeModelUtils.findNodesForFeature(propAccessExpr,
			N4JSPackage.eINSTANCE.getParameterizedPropertyAccessExpression_Property())) {
		sb.append(NodeModelUtils.getTokenText(node));
	}
	return sb.toString();
}