use of org.codehaus.groovy.syntax.ParserException in project groovy-core by groovy.
the class GenericsUtils method parseClassNodesFromString.
public static ClassNode[] parseClassNodesFromString(final String option, final SourceUnit sourceUnit, final CompilationUnit compilationUnit, final MethodNode mn, final ASTNode usage) {
GroovyLexer lexer = new GroovyLexer(new StringReader("DummyNode<" + option + ">"));
final GroovyRecognizer rn = GroovyRecognizer.make(lexer);
try {
rn.classOrInterfaceType(true);
final AtomicReference<ClassNode> ref = new AtomicReference<ClassNode>();
AntlrParserPlugin plugin = new AntlrParserPlugin() {
@Override
public ModuleNode buildAST(final SourceUnit sourceUnit, final ClassLoader classLoader, final Reduction cst) throws ParserException {
ref.set(makeTypeWithArguments(rn.getAST()));
return null;
}
};
plugin.buildAST(null, null, null);
ClassNode parsedNode = ref.get();
// the returned node is DummyNode<Param1, Param2, Param3, ...)
GenericsType[] parsedNodeGenericsTypes = parsedNode.getGenericsTypes();
if (parsedNodeGenericsTypes == null) {
return null;
}
ClassNode[] signature = new ClassNode[parsedNodeGenericsTypes.length];
for (int i = 0; i < parsedNodeGenericsTypes.length; i++) {
final GenericsType genericsType = parsedNodeGenericsTypes[i];
signature[i] = resolveClassNode(sourceUnit, compilationUnit, mn, usage, genericsType.getType());
}
return signature;
} catch (RecognitionException e) {
sourceUnit.addError(new IncorrectTypeHintException(mn, e, usage.getLineNumber(), usage.getColumnNumber()));
} catch (TokenStreamException e) {
sourceUnit.addError(new IncorrectTypeHintException(mn, e, usage.getLineNumber(), usage.getColumnNumber()));
} catch (ParserException e) {
sourceUnit.addError(new IncorrectTypeHintException(mn, e, usage.getLineNumber(), usage.getColumnNumber()));
}
return null;
}
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