public void testMacroBindings() throws Exception {
StringBuffer buffer = new StringBuffer("#define ABC def\n"); // $NON-NLS-1$
buffer.append("int ABC;\n"); // $NON-NLS-1$
buffer.append("#undef ABC\n"); // $NON-NLS-1$
buffer.append("#define ABC ghi\n"); // $NON-NLS-1$
buffer.append("int ABC;\n"); // $NON-NLS-1$
String code = buffer.toString();
for (ParserLanguage language : languages) {
IASTTranslationUnit tu = parse(code, language);
IASTPreprocessorMacroDefinition[] macros = tu.getMacroDefinitions();
assertEquals(macros.length, 2);
IASTPreprocessorObjectStyleMacroDefinition ABC1 =
(IASTPreprocessorObjectStyleMacroDefinition) macros[0];
IASTPreprocessorObjectStyleMacroDefinition ABC2 =
(IASTPreprocessorObjectStyleMacroDefinition) macros[1];
IMacroBinding binding1 = (IMacroBinding) ABC1.getName().resolveBinding();
assertNotNull(binding1);
IMacroBinding binding2 = (IMacroBinding) ABC2.getName().resolveBinding();
assertNotNull(binding2);
assertNotSame(binding1, binding2);
IASTName[] firstReferences = tu.getReferences(binding1);
IASTName[] firstDeclarations = tu.getDeclarationsInAST(binding1);
assertEquals(firstReferences.length, 2);
assertEquals(
firstReferences[0].getPropertyInParent(), IASTPreprocessorMacroExpansion.EXPANSION_NAME);
assertEquals(firstReferences[0].getParent().getParent(), tu);
assertEquals(firstReferences[1].getPropertyInParent(), IASTPreprocessorStatement.MACRO_NAME);
assertTrue(firstReferences[1].getParent() instanceof IASTPreprocessorUndefStatement);
assertEquals(firstDeclarations.length, 1);
assertSame(ABC1.getName(), firstDeclarations[0]);
IASTName[] secondReferences = tu.getReferences(binding2);
IASTName[] secondDeclarations = tu.getDeclarationsInAST(binding2);
assertEquals(1, secondReferences.length);
assertEquals(
secondReferences[0].getPropertyInParent(), IASTPreprocessorMacroExpansion.EXPANSION_NAME);
assertEquals(secondReferences[0].getParent().getParent(), tu);
assertSame(ABC2.getName(), secondDeclarations[0]);
}
}
private IName[] findDeclarations(IIndex index, IASTTranslationUnit ast, IBinding binding)
throws CoreException {
IName[] declNames = ast.getDeclarationsInAST(binding);
for (int i = 0; i < declNames.length; i++) {
IName name = declNames[i];
if (name.isDefinition()) declNames[i] = null;
}
declNames = (IName[]) ArrayUtil.removeNulls(IName.class, declNames);
if (declNames.length == 0) {
declNames =
index.findNames(
binding, IIndex.FIND_DECLARATIONS | IIndex.SEARCH_ACROSS_LANGUAGE_BOUNDARIES);
}
return declNames;
}