org.jsweet.transpiler.util

Class Util

java.lang.Object

org.jsweet.transpiler.util.Util

public class Util
extends Object

Various utilities.

Author:

Renaud Pawlak

Method Summary

Modifier and Type	Method and Description
static void	addFiles(Predicate<File> filter, File file, Collection<File> files) Recursively adds files to the given list.
static void	addFiles(String extension, File file, Collection<File> files) Recursively adds files to the given list.
static boolean	containsAssignableType(com.sun.tools.javac.code.Types types, List<com.sun.tools.javac.code.Type> list, com.sun.tools.javac.code.Type type) Tells if the given list contains an type which is assignable from type.
static boolean	containsFile(File dir, File[] files) Tells if the given directory or any of its sub-directory contains one of the given files.
static boolean	containsMethods(com.sun.tools.javac.tree.JCTree.JCClassDecl classDeclaration) Tells if the given type declaration contains some method declarations.
static String	escapeRegex(String regex) This function will escape special characters within a string to ensure that the string will not be parsed as a regular expression.
static void	fillAllVariableAccesses(Map<String,com.sun.tools.javac.code.Symbol.VarSymbol> vars, com.sun.tools.javac.tree.JCTree tree) Fills the given map with all the variables beeing accessed within the given code tree.
static void	fillAllVariablesInScope(Map<String,com.sun.tools.javac.code.Symbol.VarSymbol> vars, Stack<com.sun.tools.javac.tree.JCTree> scanningStack, com.sun.tools.javac.tree.JCTree from, com.sun.tools.javac.tree.JCTree to) Finds all the variables accessible within the current scanning scope.
static void	findDefaultMethodsInType(Set<Map.Entry<com.sun.tools.javac.tree.JCTree.JCClassDecl,com.sun.tools.javac.tree.JCTree.JCMethodDecl>> defaultMethods, JSweetContext context, com.sun.tools.javac.code.Symbol.ClassSymbol classSymbol) Fills the given set with all the default methods found in the current type and super interfaces.
static com.sun.tools.javac.code.Symbol.VarSymbol	findFieldDeclaration(com.sun.tools.javac.code.Symbol.ClassSymbol classSymbol, com.sun.tools.javac.util.Name name) Finds the field in the given type that matches the given name.
static com.sun.tools.javac.code.Symbol	findFirstDeclarationInClassAndSuperClasses(com.sun.tools.javac.code.Symbol.TypeSymbol typeSymbol, String name, ElementKind kind) Find first declaration (of any kind) matching the given name.
static com.sun.tools.javac.code.Symbol	findFirstDeclarationInType(Element typeSymbol, String name) Find first declaration (of any kind) matching the given name.
static com.sun.tools.javac.tree.JCTree.JCMethodDecl	findFirstMethodDeclaration(com.sun.tools.javac.tree.JCTree.JCClassDecl typeDeclaration, String methodName)
static com.sun.tools.javac.code.Symbol.MethodSymbol	findFirstMethodDeclarationInType(Element typeSymbol, String methodName) Finds first method matching name (no super types lookup).
static com.sun.tools.javac.code.Symbol.ClassSymbol	findInnerClassDeclaration(com.sun.tools.javac.code.Symbol.ClassSymbol clazz, String name) Finds the first inner class declaration of the given name in the given class hierarchy.
static com.sun.tools.javac.code.Symbol.MethodSymbol	findMethodDeclarationInType(com.sun.tools.javac.code.Types types, com.sun.tools.javac.code.Symbol.TypeSymbol typeSymbol, com.sun.tools.javac.tree.JCTree.JCMethodInvocation invocation) Finds the method declaration within the given type, for the given invocation.
static com.sun.tools.javac.code.Symbol.MethodSymbol	findMethodDeclarationInType(com.sun.tools.javac.code.Types types, com.sun.tools.javac.code.Symbol.TypeSymbol typeSymbol, String methodName, com.sun.tools.javac.code.Type.MethodType methodType) Finds the method in the given type that matches the given name and signature.
static com.sun.tools.javac.code.Symbol.MethodSymbol	findMethodDeclarationInType(com.sun.tools.javac.code.Types types, com.sun.tools.javac.code.Symbol.TypeSymbol typeSymbol, String methodName, com.sun.tools.javac.code.Type.MethodType methodType, boolean overrides) Finds the method in the given type that matches the given name and signature.
static List<com.sun.tools.javac.tree.JCTree.JCMethodDecl>	findMethodDeclarations(com.sun.tools.javac.tree.JCTree.JCClassDecl typeDeclaration)
static void	findMethodDeclarationsInType(com.sun.tools.javac.code.Symbol.TypeSymbol typeSymbol, Collection<String> methodNames, Set<String> ignoredTypeNames, List<com.sun.tools.javac.code.Symbol.MethodSymbol> result) Finds methods by name.
static com.sun.tools.javac.tree.JCTree.JCVariableDecl	findParameter(com.sun.tools.javac.tree.JCTree.JCMethodDecl method, String name) Finds and returns the parameter matching the given name if any.
static List<com.sun.tools.javac.tree.JCTree.JCClassDecl>	findTypeDeclarationsInCompilationUnits(List<com.sun.tools.javac.tree.JCTree.JCCompilationUnit> compilationUnits)
static com.sun.tools.javac.code.Symbol	getAccessedSymbol(com.sun.tools.javac.tree.JCTree tree) Gets the symbol on JCFieldAccess or JCIdent if possible, or return null.
static List<List<com.sun.tools.javac.tree.JCTree>>	getExecutionPaths(com.sun.tools.javac.tree.JCTree.JCMethodDecl methodDeclaration)
static String	getFullMethodSignature(com.sun.tools.javac.code.Symbol.MethodSymbol method) Gets the full signature of the given method.
static long	getId() Returns a unique id (incremental).
static com.sun.tools.javac.code.Symbol.TypeSymbol	getImportedType(com.sun.tools.javac.tree.JCTree.JCImport i) Gets the imported type (wether statically imported or not).
static com.sun.tools.javac.code.Symbol.PackageSymbol	getPackageByName(JSweetContext context, String qualifiedName) Looks up a package element from its qualified name.
static String	getRelativePath(String fromPath, String toPath) Gets the relative path that links the two given paths.
static String	getRelativePath(com.sun.tools.javac.code.Symbol fromSymbol, com.sun.tools.javac.code.Symbol toSymbol) Get the relative path to reach a symbol from another one.
static List<com.sun.tools.javac.tree.JCTree.JCClassDecl>	getSortedClassDeclarations(List<com.sun.tools.javac.tree.JCTree> decls) Gets the inheritance-based sorted class declarations.
static String	getSourceFilePath(Element element) Gets the source file path of the given element.
static com.sun.tools.javac.code.Symbol.TypeSymbol	getStaticImportTarget(com.sun.tools.javac.tree.JCTree.JCCompilationUnit compilationUnit, String name) Tells if the given symbol is statically imported in the given compilation unit.
static com.sun.tools.javac.code.Symbol.ClassSymbol	getTypeByName(JSweetContext context, String qualifiedName) Looks up a type element from its qualified name.
String	getTypeInitalValue(String typeName) Gets the TypeScript initial default value for a type.
static String	getTypeInitialValue(com.sun.tools.javac.code.Type type) Returns the literal for a given type inital value.
static boolean	hasAbstractMethod(com.sun.tools.javac.code.Symbol.ClassSymbol classSymbol) Returns true if the given class declares an abstract method.
static boolean	hasParent(com.sun.tools.javac.code.Symbol.ClassSymbol clazz, String... qualifiedNamesToFind) Recursively looks up one of the given types in the type hierachy of the given class.
static boolean	hasTypeParameters(com.sun.tools.javac.code.Symbol.MethodSymbol methodSymbol) Tells if the method uses a type parameter.
static boolean	hasVarargs(com.sun.tools.javac.code.Symbol.MethodSymbol methodSymbol) Tells if the given method has varargs.
static boolean	isArithmeticOperator(com.sun.source.tree.Tree.Kind kind) Returns true is an arithmetic operator.
static boolean	isArithmeticOrLogicalOperator(com.sun.source.tree.Tree.Kind kind) Returns true is an arithmetic operator.
static boolean	isAssignable(com.sun.tools.javac.code.Types types, com.sun.tools.javac.code.Symbol.TypeSymbol to, com.sun.tools.javac.code.Symbol.TypeSymbol from) Tells if two type symbols are assignable.
static boolean	isComparisonOperator(com.sun.source.tree.Tree.Kind kind) Returns true is an comparison operator.
static boolean	isConstant(com.sun.tools.javac.tree.JCTree.JCExpression expr) Tells if the given expression is a constant.
static boolean	isConstantOrNullField(com.sun.tools.javac.tree.JCTree.JCVariableDecl var) Tells if that variable is a non-static final field initialized with a literal value.
static boolean	isCoreType(TypeMirror type) Returns true is the type is a core.
static boolean	isDeclarationOrSubClassDeclaration(Types types, com.sun.tools.javac.code.Type.ClassType classType, String searchedClassName)
static boolean	isDeclarationOrSubClassDeclarationBySimpleName(Types types, com.sun.tools.javac.code.Type.ClassType classType, String searchedClassSimpleName)
static boolean	isDeprecated(Element element)
static boolean	isGlobalsClassName(String qualifiedName) Tells if this qualified name denotes a JSweet globals class.
static boolean	isImported(com.sun.tools.javac.tree.JCTree.JCCompilationUnit compilationUnit, com.sun.tools.javac.code.Symbol.TypeSymbol type) Tells if the given type is imported in the given compilation unit.
static boolean	isIntegral(com.sun.tools.javac.code.Type type) Returns true is the type is an integral numeric value.
static boolean	isInvocable(com.sun.tools.javac.code.Types types, com.sun.tools.javac.code.Type.MethodType from, com.sun.tools.javac.code.Type.MethodType target) Tells if a method can be invoked with some given parameter types.
static boolean	isLiteralExpression(com.sun.tools.javac.tree.JCTree.JCExpression expression)
static boolean	isNullLiteral(com.sun.tools.javac.tree.JCTree tree) Tells if that tree is the null literal.
static boolean	isNumber(TypeMirror type) Returns true is the type is a number.
static boolean	isOverridingBuiltInJavaObjectMethod(com.sun.tools.javac.code.Symbol.MethodSymbol method)
static boolean	isParent(com.sun.tools.javac.code.Symbol.TypeSymbol type, com.sun.tools.javac.code.Symbol.TypeSymbol toFind) Looks up a class in the given class hierarchy and returns true if found.
static boolean	isSourceElement(Element element) Tells if the given element is within the Java sources being compiled.
static boolean	isVarargs(com.sun.tools.javac.tree.JCTree.JCVariableDecl varDecl) Tells if this parameter declaration is varargs.
static <T> List<T>	list(T... items) Varargs to mutable list.
static com.sun.tools.javac.tree.JCTree	lookupTree(JSweetContext context, Element element) Gets the tree that corresponds to the given element (this is a slow implementation - do not use intensively).
static String	removeExtension(String fileName) Removes the extensions of the given file name.
static boolean	scanMemberDeclarationsInType(com.sun.tools.javac.code.Symbol.TypeSymbol typeSymbol, Set<String> ignoredTypeNames, Function<Element,Boolean> scanner) Scans member declarations in type hierachy.
static File	toFile(JavaFileObject javaFileObject) Gets the file from a Java file object.
static JavaFileObject	toJavaFileObject(JavaFileManager fileManager, File sourceFile) Transforms a source file to a Java file object (used by javac).
static com.sun.tools.javac.util.List<JavaFileObject>	toJavaFileObjects(JavaFileManager fileManager, Collection<File> sourceFiles) Transforms a list of source files to Java file objects (used by javac).
static <T> com.sun.tools.javac.util.List<T>	toJCList(Iterable<T> collection) Transforms a Java iterable to a javac list.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getId

public static long getId()

Returns a unique id (incremental).

isSourceElement

public static boolean isSourceElement(Element element)

Tells if the given element is within the Java sources being compiled.

getSourceFilePath

public static String getSourceFilePath(Element element)

Gets the source file path of the given element.

lookupTree

public static com.sun.tools.javac.tree.JCTree lookupTree(JSweetContext context,
                                                         Element element)

Gets the tree that corresponds to the given element (this is a slow implementation - do not use intensively).

Parameters:

context - the transpiler's context

element - the element to lookup

Returns:

the javac AST that corresponds to that element

addFiles

public static void addFiles(String extension,
                            File file,
                            Collection<File> files)

Recursively adds files to the given list.

Parameters:

extension - the extension to filter with

file - the root file/directory to look into recursively

files - the list to add the files matching the extension

addFiles

public static void addFiles(Predicate<File> filter,
                            File file,
                            Collection<File> files)

Recursively adds files to the given list.

Parameters:

filter - the filter predicate to apply (only files matching the predicate will be added)

file - the root file/directory to look into recursively

files - the list to add the files matching the extension

getFullMethodSignature

public static String getFullMethodSignature(com.sun.tools.javac.code.Symbol.MethodSymbol method)

Gets the full signature of the given method.

containsMethods

public static boolean containsMethods(com.sun.tools.javac.tree.JCTree.JCClassDecl classDeclaration)

Tells if the given type declaration contains some method declarations.

fillAllVariablesInScope

public static void fillAllVariablesInScope(Map<String,com.sun.tools.javac.code.Symbol.VarSymbol> vars,
                                           Stack<com.sun.tools.javac.tree.JCTree> scanningStack,
                                           com.sun.tools.javac.tree.JCTree from,
                                           com.sun.tools.javac.tree.JCTree to)

Finds all the variables accessible within the current scanning scope.

findTypeDeclarationsInCompilationUnits

public static List<com.sun.tools.javac.tree.JCTree.JCClassDecl> findTypeDeclarationsInCompilationUnits(List<com.sun.tools.javac.tree.JCTree.JCCompilationUnit> compilationUnits)

findMethodDeclarations

public static List<com.sun.tools.javac.tree.JCTree.JCMethodDecl> findMethodDeclarations(com.sun.tools.javac.tree.JCTree.JCClassDecl typeDeclaration)

findFirstMethodDeclaration

public static com.sun.tools.javac.tree.JCTree.JCMethodDecl findFirstMethodDeclaration(com.sun.tools.javac.tree.JCTree.JCClassDecl typeDeclaration,
                                                                                      String methodName)

fillAllVariableAccesses

public static void fillAllVariableAccesses(Map<String,com.sun.tools.javac.code.Symbol.VarSymbol> vars,
                                           com.sun.tools.javac.tree.JCTree tree)

Fills the given map with all the variables beeing accessed within the given code tree.

findMethodDeclarationInType

public static com.sun.tools.javac.code.Symbol.MethodSymbol findMethodDeclarationInType(com.sun.tools.javac.code.Types types,
                                                                                       com.sun.tools.javac.code.Symbol.TypeSymbol typeSymbol,
                                                                                       com.sun.tools.javac.tree.JCTree.JCMethodInvocation invocation)

Finds the method declaration within the given type, for the given invocation.

findMethodDeclarationInType

public static com.sun.tools.javac.code.Symbol.MethodSymbol findMethodDeclarationInType(com.sun.tools.javac.code.Types types,
                                                                                       com.sun.tools.javac.code.Symbol.TypeSymbol typeSymbol,
                                                                                       String methodName,
                                                                                       com.sun.tools.javac.code.Type.MethodType methodType)

Finds the method in the given type that matches the given name and signature.

findMethodDeclarationInType

public static com.sun.tools.javac.code.Symbol.MethodSymbol findMethodDeclarationInType(com.sun.tools.javac.code.Types types,
                                                                                       com.sun.tools.javac.code.Symbol.TypeSymbol typeSymbol,
                                                                                       String methodName,
                                                                                       com.sun.tools.javac.code.Type.MethodType methodType,
                                                                                       boolean overrides)

Finds the method in the given type that matches the given name and signature.

findMethodDeclarationsInType

public static void findMethodDeclarationsInType(com.sun.tools.javac.code.Symbol.TypeSymbol typeSymbol,
                                                Collection<String> methodNames,
                                                Set<String> ignoredTypeNames,
                                                List<com.sun.tools.javac.code.Symbol.MethodSymbol> result)

Finds methods by name.

findFirstMethodDeclarationInType

public static com.sun.tools.javac.code.Symbol.MethodSymbol findFirstMethodDeclarationInType(Element typeSymbol,
                                                                                            String methodName)

Finds first method matching name (no super types lookup).

isDeprecated

public static boolean isDeprecated(Element element)

findFirstDeclarationInType

public static com.sun.tools.javac.code.Symbol findFirstDeclarationInType(Element typeSymbol,
                                                                         String name)

Find first declaration (of any kind) matching the given name.

findFirstDeclarationInClassAndSuperClasses

public static com.sun.tools.javac.code.Symbol findFirstDeclarationInClassAndSuperClasses(com.sun.tools.javac.code.Symbol.TypeSymbol typeSymbol,
                                                                                         String name,
                                                                                         ElementKind kind)

Find first declaration (of any kind) matching the given name.

scanMemberDeclarationsInType

public static boolean scanMemberDeclarationsInType(com.sun.tools.javac.code.Symbol.TypeSymbol typeSymbol,
                                                   Set<String> ignoredTypeNames,
                                                   Function<Element,Boolean> scanner)

Scans member declarations in type hierachy.

findParameter

public static com.sun.tools.javac.tree.JCTree.JCVariableDecl findParameter(com.sun.tools.javac.tree.JCTree.JCMethodDecl method,
                                                                           String name)

Finds and returns the parameter matching the given name if any.

isInvocable

public static boolean isInvocable(com.sun.tools.javac.code.Types types,
                                  com.sun.tools.javac.code.Type.MethodType from,
                                  com.sun.tools.javac.code.Type.MethodType target)

Tells if a method can be invoked with some given parameter types.

Parameters:

types - a reference to the types in the compilation scope

from - the caller method signature to test (contains the parameter types)

target - the callee method signature

Returns:

true if the callee can be invoked by the caller

getTypeInitalValue

public String getTypeInitalValue(String typeName)

Gets the TypeScript initial default value for a type.

findDefaultMethodsInType

public static void findDefaultMethodsInType(Set<Map.Entry<com.sun.tools.javac.tree.JCTree.JCClassDecl,com.sun.tools.javac.tree.JCTree.JCMethodDecl>> defaultMethods,
                                            JSweetContext context,
                                            com.sun.tools.javac.code.Symbol.ClassSymbol classSymbol)

Fills the given set with all the default methods found in the current type and super interfaces.

findFieldDeclaration

public static com.sun.tools.javac.code.Symbol.VarSymbol findFieldDeclaration(com.sun.tools.javac.code.Symbol.ClassSymbol classSymbol,
                                                                             com.sun.tools.javac.util.Name name)

Finds the field in the given type that matches the given name.

isGlobalsClassName

public static boolean isGlobalsClassName(String qualifiedName)

Tells if this qualified name denotes a JSweet globals class.

isVarargs

public static boolean isVarargs(com.sun.tools.javac.tree.JCTree.JCVariableDecl varDecl)

Tells if this parameter declaration is varargs.

toFile

public static File toFile(JavaFileObject javaFileObject)

Gets the file from a Java file object.

toJCList

public static <T> com.sun.tools.javac.util.List<T> toJCList(Iterable<T> collection)

Transforms a Java iterable to a javac list.

toJavaFileObjects

public static com.sun.tools.javac.util.List<JavaFileObject> toJavaFileObjects(JavaFileManager fileManager,
                                                                              Collection<File> sourceFiles)
                                                                       throws IOException

Transforms a list of source files to Java file objects (used by javac).

Throws:

IOException

toJavaFileObject

public static JavaFileObject toJavaFileObject(JavaFileManager fileManager,
                                              File sourceFile)
                                       throws IOException

Transforms a source file to a Java file object (used by javac).

Throws:

IOException

escapeRegex

public static String escapeRegex(String regex)

This function will escape special characters within a string to ensure that the string will not be parsed as a regular expression. This is helpful with accepting using input that needs to be used in functions that take a regular expression as an argument (such as String.replaceAll(), or String.split()).

Parameters:

regex - - argument which we wish to escape.

Returns:

- Resulting string with the following characters escaped: [](){}+*^?$.\

list

@SafeVarargs
public static final <T> List<T> list(T... items)

Varargs to mutable list.

isAssignable

public static boolean isAssignable(com.sun.tools.javac.code.Types types,
                                   com.sun.tools.javac.code.Symbol.TypeSymbol to,
                                   com.sun.tools.javac.code.Symbol.TypeSymbol from)

Tells if two type symbols are assignable.

containsAssignableType

public static boolean containsAssignableType(com.sun.tools.javac.code.Types types,
                                             List<com.sun.tools.javac.code.Type> list,
                                             com.sun.tools.javac.code.Type type)

Tells if the given list contains an type which is assignable from type.

getRelativePath

public static String getRelativePath(com.sun.tools.javac.code.Symbol fromSymbol,
                                     com.sun.tools.javac.code.Symbol toSymbol)

Get the relative path to reach a symbol from another one.

Parameters:

fromSymbol - the start path

toSymbol - the end path

Returns:

the '/'-separated path

See Also:

getRelativePath(String, String)

getRelativePath

public static String getRelativePath(String fromPath,
                                     String toPath)

Gets the relative path that links the two given paths.

 assertEquals("../c", Util.getRelativePath("/a/b", "/a/c"));
 assertEquals("..", Util.getRelativePath("/a/b", "/a"));
 assertEquals("../e", Util.getRelativePath("/a/b/c", "/a/b/e"));
 assertEquals("d", Util.getRelativePath("/a/b/c", "/a/b/c/d"));
 assertEquals("d/e", Util.getRelativePath("/a/b/c", "/a/b/c/d/e"));
 assertEquals("../../../d/e/f", Util.getRelativePath("/a/b/c", "/d/e/f"));
 assertEquals("../..", Util.getRelativePath("/a/b/c", "/a"));
 assertEquals("..", Util.getRelativePath("/a/b/c", "/a/b"));
 

Thanks to: http://mrpmorris.blogspot.com/2007/05/convert-absolute-path-to-relative- path.html

Bug fix: Renaud Pawlak

Parameters:

fromPath - the path to start from

toPath - the path to reach

removeExtension

public static String removeExtension(String fileName)

Removes the extensions of the given file name.

Parameters:

fileName - the given file name (can contain path)

Returns:

the file name without the extension

containsFile

public static boolean containsFile(File dir,
                                   File[] files)

Tells if the given directory or any of its sub-directory contains one of the given files.

Parameters:

dir - the directory to look into

files - the files to be found

Returns:

true if one of the given files is found

isIntegral

public static boolean isIntegral(com.sun.tools.javac.code.Type type)

Returns true is the type is an integral numeric value.

isNumber

public static boolean isNumber(TypeMirror type)

Returns true is the type is a number.

isCoreType

public static boolean isCoreType(TypeMirror type)

Returns true is the type is a core.

isArithmeticOrLogicalOperator

public static boolean isArithmeticOrLogicalOperator(com.sun.source.tree.Tree.Kind kind)

Returns true is an arithmetic operator.

isArithmeticOperator

public static boolean isArithmeticOperator(com.sun.source.tree.Tree.Kind kind)

Returns true is an arithmetic operator.

isComparisonOperator

public static boolean isComparisonOperator(com.sun.source.tree.Tree.Kind kind)

Returns true is an comparison operator.

isParent

public static boolean isParent(com.sun.tools.javac.code.Symbol.TypeSymbol type,
                               com.sun.tools.javac.code.Symbol.TypeSymbol toFind)

Looks up a class in the given class hierarchy and returns true if found.

hasParent

public static boolean hasParent(com.sun.tools.javac.code.Symbol.ClassSymbol clazz,
                                String... qualifiedNamesToFind)

Recursively looks up one of the given types in the type hierachy of the given class.

Returns:

true if one of the given names is found as a superclass or a superinterface

getPackageByName

public static com.sun.tools.javac.code.Symbol.PackageSymbol getPackageByName(JSweetContext context,
                                                                             String qualifiedName)

Looks up a package element from its qualified name.

Returns:

null if not found

getTypeByName

public static com.sun.tools.javac.code.Symbol.ClassSymbol getTypeByName(JSweetContext context,
                                                                        String qualifiedName)

Looks up a type element from its qualified name.

Returns:

null if not found

hasVarargs

public static boolean hasVarargs(com.sun.tools.javac.code.Symbol.MethodSymbol methodSymbol)

Tells if the given method has varargs.

hasTypeParameters

public static boolean hasTypeParameters(com.sun.tools.javac.code.Symbol.MethodSymbol methodSymbol)

Tells if the method uses a type parameter.

isImported

public static boolean isImported(com.sun.tools.javac.tree.JCTree.JCCompilationUnit compilationUnit,
                                 com.sun.tools.javac.code.Symbol.TypeSymbol type)

Tells if the given type is imported in the given compilation unit.

getStaticImportTarget

public static com.sun.tools.javac.code.Symbol.TypeSymbol getStaticImportTarget(com.sun.tools.javac.tree.JCTree.JCCompilationUnit compilationUnit,
                                                                               String name)

Tells if the given symbol is statically imported in the given compilation unit.

getImportedType

public static com.sun.tools.javac.code.Symbol.TypeSymbol getImportedType(com.sun.tools.javac.tree.JCTree.JCImport i)

Gets the imported type (wether statically imported or not).

isConstant

public static boolean isConstant(com.sun.tools.javac.tree.JCTree.JCExpression expr)

Tells if the given expression is a constant.

isNullLiteral

public static boolean isNullLiteral(com.sun.tools.javac.tree.JCTree tree)

Tells if that tree is the null literal.

isConstantOrNullField

public static boolean isConstantOrNullField(com.sun.tools.javac.tree.JCTree.JCVariableDecl var)

Tells if that variable is a non-static final field initialized with a literal value.

getTypeInitialValue

public static String getTypeInitialValue(com.sun.tools.javac.code.Type type)

Returns the literal for a given type inital value.

getAccessedSymbol

public static com.sun.tools.javac.code.Symbol getAccessedSymbol(com.sun.tools.javac.tree.JCTree tree)

Gets the symbol on JCFieldAccess or JCIdent if possible, or return null. Could return either a MethodSymbol, or VariableSymbol

hasAbstractMethod

public static boolean hasAbstractMethod(com.sun.tools.javac.code.Symbol.ClassSymbol classSymbol)

Returns true if the given class declares an abstract method.

isOverridingBuiltInJavaObjectMethod

public static boolean isOverridingBuiltInJavaObjectMethod(com.sun.tools.javac.code.Symbol.MethodSymbol method)

getSortedClassDeclarations

public static List<com.sun.tools.javac.tree.JCTree.JCClassDecl> getSortedClassDeclarations(List<com.sun.tools.javac.tree.JCTree> decls)

Gets the inheritance-based sorted class declarations.

This method aims at overcoming TypeScrit limitation that forces a parent class to be declared before its child class (it is not the case in Java). So far this is a partial implementation that should cover most cases... for a 100% coverage we would need a much more complicated implementation that is probably not worth it.

findInnerClassDeclaration

public static com.sun.tools.javac.code.Symbol.ClassSymbol findInnerClassDeclaration(com.sun.tools.javac.code.Symbol.ClassSymbol clazz,
                                                                                    String name)

Finds the first inner class declaration of the given name in the given class hierarchy.

isLiteralExpression

public static boolean isLiteralExpression(com.sun.tools.javac.tree.JCTree.JCExpression expression)

getExecutionPaths

public static List<List<com.sun.tools.javac.tree.JCTree>> getExecutionPaths(com.sun.tools.javac.tree.JCTree.JCMethodDecl methodDeclaration)

isDeclarationOrSubClassDeclaration

public static boolean isDeclarationOrSubClassDeclaration(Types types,
                                                         com.sun.tools.javac.code.Type.ClassType classType,
                                                         String searchedClassName)

isDeclarationOrSubClassDeclarationBySimpleName

public static boolean isDeclarationOrSubClassDeclarationBySimpleName(Types types,
                                                                     com.sun.tools.javac.code.Type.ClassType classType,
                                                                     String searchedClassSimpleName)