/**
* Build the HTML element for the given source.
*
* @param source the source describing the compilation unit
* @param unit the AST structure representing the HTML
* @throws AnalysisException if the analysis could not be performed
*/
public HtmlElementImpl buildHtmlElement(Source source, HtmlUnit unit) throws AnalysisException {
HtmlElementImpl result = new HtmlElementImpl(context, source.getShortName());
result.setSource(source);
htmlElement = result;
unit.accept(this);
htmlElement = null;
unit.setElement(result);
return result;
}
private void validate(HtmlElementImpl element, ExpectedScript... expectedScripts) {
assertSame(context, element.getContext());
HtmlScriptElement[] scripts = element.getScripts();
assertNotNull(scripts);
assertLength(expectedScripts.length, scripts);
for (int scriptIndex = 0; scriptIndex < scripts.length; scriptIndex++) {
expectedScripts[scriptIndex].validate(scriptIndex, scripts[scriptIndex]);
}
}
@Override
public Void visitHtmlUnit(HtmlUnit node) {
scripts = new ArrayList<HtmlScriptElement>();
node.visitChildren(this);
htmlElement.setScripts(scripts.toArray(new HtmlScriptElement[scripts.size()]));
scripts = null;
return null;
}
@Override
public Void visitXmlTagNode(XmlTagNode node) {
if (isScriptNode(node)) {
Source htmlSource = htmlElement.getSource();
String scriptSourcePath = getScriptSourcePath(node);
if (node.getAttributeEnd().getType() == TokenType.GT && scriptSourcePath == null) {
EmbeddedHtmlScriptElementImpl script = new EmbeddedHtmlScriptElementImpl(node);
String contents = node.getContent();
// TODO (danrubel): Move scanning embedded scripts into AnalysisContextImpl
// so that clients such as builder can scan, parse, and get errors without resolving
AnalysisErrorListener errorListener =
new AnalysisErrorListener() {
@Override
public void onError(AnalysisError error) {
// TODO (danrubel): make errors accessible once this is moved into
// AnalysisContextImpl
}
};
StringScanner scanner = new StringScanner(null, contents, errorListener);
com.google.dart.engine.scanner.Token firstToken = scanner.tokenize();
int[] lineStarts = scanner.getLineStarts();
// TODO (danrubel): Move parsing embedded scripts into AnalysisContextImpl
// so that clients such as builder can scan, parse, and get errors without resolving
Parser parser = new Parser(null, errorListener);
CompilationUnit unit = parser.parseCompilationUnit(firstToken);
try {
CompilationUnitBuilder builder = new CompilationUnitBuilder();
CompilationUnitElementImpl elem = builder.buildCompilationUnit(htmlSource, unit);
LibraryElementImpl library = new LibraryElementImpl(context, null);
library.setDefiningCompilationUnit(elem);
script.setScriptLibrary(library);
} catch (AnalysisException e) {
// TODO (danrubel): Handle or forward the exception
e.printStackTrace();
}
scripts.add(script);
} else {
ExternalHtmlScriptElementImpl script = new ExternalHtmlScriptElementImpl(node);
if (scriptSourcePath != null) {
script.setScriptSource(
context.getSourceFactory().resolveUri(htmlSource, scriptSourcePath));
}
scripts.add(script);
}
} else {
node.visitChildren(this);
}
return null;
}