private static void resolveJsniRef(JsniRef jsniRef, FieldBinding fieldBinding) {
if (fieldBinding == null) {
return;
}
jsniRef.setResolvedClassName(JdtUtil.getSourceName(fieldBinding.declaringClass));
jsniRef.setResolvedMemberWithSignature(new String(fieldBinding.name));
}
private static void resolveJsniRef(JsniRef jsniRef, MethodBinding methodBinding) {
if (methodBinding == null) {
return;
}
ReferenceBinding declaringClassBinding = methodBinding.declaringClass;
jsniRef.setResolvedClassName(JdtUtil.getSourceName(declaringClassBinding));
jsniRef.setResolvedMemberWithSignature(JdtUtil.formatMethodSignature(methodBinding));
}
private Binding resolveReference(
SourceInfo errorInfo, JsniRef jsniRef, boolean hasQualifier, boolean isLvalue) {
resolveClassReference(jsniRef);
String className = jsniRef.getResolvedClassName();
boolean isPrimitive;
ReferenceBinding clazz;
TypeBinding binding = method.scope.getBaseType(className.toCharArray());
if (binding != null) {
isPrimitive = true;
clazz = null;
} else {
isPrimitive = false;
binding = clazz = findClass(className);
}
if (binding != null && binding.isAnonymousType()) {
// There seems that there is no way to write a JSNI reference to an anonymous class as
// it will require to accept a source name of the form A.1 where one of the identifier parts
// consists only of digits and therefore is not a valid identifier.
// This error case is left here in case names of that form start appearing from the JSNI
// parser.
emitError(ERR_ILLEGAL_ANONYMOUS_INNER_CLASS, errorInfo, jsniRef);
return null;
} else if (binding == null) {
emitError(ERR_UNABLE_TO_RESOLVE_CLASS, errorInfo, jsniRef);
return null;
}
if (clazz != null
&& clazz.isDeprecated()
&& !isEnclosingClass(method.binding.declaringClass, clazz)) {
emitWarning("deprecation", WARN_DEPRECATED_CLASS, errorInfo, jsniRef);
}
if (jsniRef.isField() && "class".equals(jsniRef.memberName())) {
if (isLvalue) {
emitError(ERR_ILLEGAL_ASSIGNMENT_TO_CLASS_LITERAL, errorInfo, jsniRef);
return null;
}
// Reference to the class itself.
jsniRef.setResolvedClassName(JdtUtil.getSourceName(binding));
jsniRef.setResolvedMemberWithSignature(jsniRef.memberSignature());
if (jsniRef.isArray()) {
ArrayBinding arrayBinding =
method.scope.createArrayType(binding, jsniRef.getDimensions());
return arrayBinding;
} else {
return binding;
}
}
if (jsniRef.isArray() || isPrimitive) {
emitError(ERR_ILLEGAL_ARRAY_OR_PRIMITIVE_REFERENCE, errorInfo, jsniRef);
return null;
}
assert clazz != null;
if (jsniRef.isMethod()) {
return checkAndResolveMethodRef(errorInfo, clazz, jsniRef, hasQualifier, isLvalue);
} else {
return checkAndResolveFieldRef(errorInfo, clazz, jsniRef, hasQualifier, isLvalue);
}
}
private void resolveClassReference(JsniRef jsniRef) {
// Precedence rules as of JLS 6.4.1.
// 1. Enclosing type.
// 2. Visible type in same compilation unit.
// 3. Named import.
// 4. Same package.
// 5. Import on demand.
String originalName = jsniRef.className();
String importedClassName = originalName;
if (importedClassName.contains(".")) {
// Only retain up the first dot to support innerclasses. E.g. import c.g.A and reference
// @A.I::f.
importedClassName = importedClassName.substring(0, importedClassName.indexOf("."));
}
// 1 & 2. Check to see if this name refers to the enclosing class or is directly accessible
// from it.
ReferenceBinding declaringClass = method.binding.declaringClass;
while (declaringClass != null) {
String declaringClassName = JdtUtil.getSourceName(declaringClass);
if (declaringClassName.equals(importedClassName)
|| declaringClassName.endsWith("." + importedClassName)) {
// Referring to declaring class name using unqualified name.
jsniRef.setResolvedClassName(
declaringClassName + originalName.substring(importedClassName.length()));
return;
}
String fullClassName =
JdtUtil.getBinaryName(declaringClass) + "$" + originalName.replace('.', '$');
if (typeResolver.resolveType(fullClassName) != null) {
jsniRef.setResolvedClassName(JdtUtil.getSourceName(declaringClass) + "." + originalName);
return;
}
declaringClass = declaringClass.enclosingTypeAt(1);
}
// 3. Check to see if this name is one of the named imports.
for (ImportReference importReference : cudImports) {
String nameFromImport = JdtUtil.asDottedString(importReference.getImportName());
if (!importReference.isStatic()
&& importReference.trailingStarPosition == 0
&& nameFromImport.endsWith("." + importedClassName)) {
jsniRef.setResolvedClassName(
nameFromImport + originalName.substring(importedClassName.length()));
return;
}
}
// 4. Check to see if this name is resolvable from the current package.
String currentPackageBinaryClassName =
JdtUtil.getBinaryName(
CharOperation.charToString(method.binding.declaringClass.qualifiedPackageName()),
originalName);
if (typeResolver.resolveType(currentPackageBinaryClassName) != null) {
jsniRef.setResolvedClassName(
JdtUtil.getSourceName(
CharOperation.charToString(method.binding.declaringClass.qualifiedPackageName()),
originalName));
return;
}
// 5. Check to see if this name is resolvable as an import on demand.
List<String> importPackages = Lists.newArrayList("java.lang");
for (ImportReference importReference : cudImports) {
if (importReference.isStatic() || importReference.trailingStarPosition == 0) {
continue;
}
importPackages.add(JdtUtil.asDottedString(importReference.getImportName()));
}
for (String importPackage : importPackages) {
String fullClassName = importPackage + "." + originalName.replace('.', '$');
if (typeResolver.resolveType(fullClassName) != null) {
jsniRef.setResolvedClassName(importPackage + "." + originalName);
return;
}
}
// Otherwise leave it as it is.
// TODO(rluble): Maybe we should leave it null here.
jsniRef.setResolvedClassName(jsniRef.className());
}
