public class JavaParserUtil extends Object
| Modifier and Type | Class and Description |
|---|---|
static class |
JavaParserUtil.StringLiteralConcatenateVisitor
Visitor that combines added String literals, see
concatenateAddedStringLiterals(com.github.javaparser.ast.Node). |
| Modifier and Type | Field and Description |
|---|---|
static com.github.javaparser.ParserConfiguration.LanguageLevel |
DEFAULT_LANGUAGE_LEVEL
The Language Level to use when parsing if a specific level isn't applied.
|
| Constructor and Description |
|---|
JavaParserUtil() |
| Modifier and Type | Method and Description |
|---|---|
static void |
clearAnnotations(com.github.javaparser.ast.Node node)
Side-effects
node by removing all annotations from anywhere inside its subtree. |
static void |
concatenateAddedStringLiterals(com.github.javaparser.ast.Node node)
Side-effects node by combining any added String literals in node's subtree into their
concatenation.
|
static com.github.javaparser.ParserConfiguration.LanguageLevel |
getCurrentSourceVersion(ProcessingEnvironment env)
Returns the
ParserConfiguration.LanguageLevel corresponding to
the current source version. |
static String |
getFullyQualifiedName(com.github.javaparser.ast.body.TypeDeclaration<?> type,
com.github.javaparser.ast.CompilationUnit compilationUnit)
Returns the fully qualified name of a type appearing in a given compilation unit.
|
static com.github.javaparser.ast.body.TypeDeclaration<?> |
getTypeDeclarationByName(com.github.javaparser.ast.CompilationUnit root,
String name)
Given the compilation unit node for a source file, returns the top level type definition with
the given name.
|
static com.github.javaparser.ast.CompilationUnit |
parseCompilationUnit(File file)
Parses the Java code contained in the
File and returns a CompilationUnit that
represents it. |
static com.github.javaparser.ast.CompilationUnit |
parseCompilationUnit(InputStream inputStream)
Parses the Java code contained in the
InputStream and returns a CompilationUnit
that represents it. |
static com.github.javaparser.ast.CompilationUnit |
parseCompilationUnit(String javaSource)
Parses the Java code contained in the
String and returns a CompilationUnit that
represents it. |
static com.github.javaparser.ast.expr.Expression |
parseExpression(String expression)
Parses the
expression and returns an Expression that represents it. |
static com.github.javaparser.ast.expr.Expression |
parseExpression(String expression,
com.github.javaparser.ParserConfiguration.LanguageLevel languageLevel)
Parses the
expression and returns an Expression that represents it. |
static com.github.javaparser.ast.StubUnit |
parseStubUnit(InputStream inputStream)
Parses the stub file contained in the
InputStream and returns a StubUnit that
represents it. |
public static final com.github.javaparser.ParserConfiguration.LanguageLevel DEFAULT_LANGUAGE_LEVEL
public static com.github.javaparser.ast.CompilationUnit parseCompilationUnit(InputStream inputStream)
InputStream and returns a CompilationUnit
that represents it.
This is like StaticJavaParser.parse, but it does not lead to memory leaks because it
creates a new instance of JavaParser each time it is invoked. Re-using StaticJavaParser
causes memory problems because it retains too much memory.
inputStream - the Java source codecom.github.javaparser.ParseProblemException - if the source code has parser errorspublic static com.github.javaparser.ast.CompilationUnit parseCompilationUnit(File file) throws FileNotFoundException
File and returns a CompilationUnit that
represents it.
This is like StaticJavaParser.parse, but it does not lead to memory leaks because it
creates a new instance of JavaParser each time it is invoked. Re-using StaticJavaParser
causes memory problems because it retains too much memory.
file - the Java source codecom.github.javaparser.ParseProblemException - if the source code has parser errorsFileNotFoundException - if the file was not foundpublic static com.github.javaparser.ast.CompilationUnit parseCompilationUnit(String javaSource)
String and returns a CompilationUnit that
represents it.
This is like StaticJavaParser.parse, but it does not lead to memory leaks because it
creates a new instance of JavaParser each time it is invoked. Re-using StaticJavaParser
causes memory problems because it retains too much memory.
javaSource - the Java source codecom.github.javaparser.ParseProblemException - if the source code has parser errorspublic static com.github.javaparser.ast.StubUnit parseStubUnit(InputStream inputStream)
InputStream and returns a StubUnit that
represents it.
This is like StaticJavaParser.parse, but it does not lead to memory leaks because it
creates a new instance of JavaParser each time it is invoked. Re-using StaticJavaParser
causes memory problems because it retains too much memory.
inputStream - the stub filecom.github.javaparser.ParseProblemException - if the source code has parser errorspublic static com.github.javaparser.ast.expr.Expression parseExpression(String expression)
expression and returns an Expression that represents it.
This is like StaticJavaParser.parseExpression, but it does not lead to memory leaks
because it creates a new instance of JavaParser each time it is invoked. Re-using StaticJavaParser causes memory problems because it retains too much memory.
expression - the expression stringcom.github.javaparser.ParseProblemException - if the expression has parser errorspublic static com.github.javaparser.ast.expr.Expression parseExpression(String expression, com.github.javaparser.ParserConfiguration.LanguageLevel languageLevel)
expression and returns an Expression that represents it.
This is like StaticJavaParser.parseExpression, but it does not lead to memory leaks
because it creates a new instance of JavaParser each time it is invoked. Re-using StaticJavaParser causes memory problems because it retains too much memory.
expression - the expression stringlanguageLevel - the language level to use when parsing the Java sourcecom.github.javaparser.ParseProblemException - if the expression has parser errorspublic static com.github.javaparser.ast.body.TypeDeclaration<?> getTypeDeclarationByName(com.github.javaparser.ast.CompilationUnit root,
String name)
root - compilation unit to searchname - name of a top level type declaration in rootroot named namepublic static String getFullyQualifiedName(com.github.javaparser.ast.body.TypeDeclaration<?> type, com.github.javaparser.ast.CompilationUnit compilationUnit)
type - a type declarationcompilationUnit - the compilation unit containing typetype if compilationUnit contains a package
declaration, or just the name of type otherwisepublic static void clearAnnotations(com.github.javaparser.ast.Node node)
node by removing all annotations from anywhere inside its subtree.node - a JavaParser Nodepublic static void concatenateAddedStringLiterals(com.github.javaparser.ast.Node node)
"a" + "b" becomes "ab". This occurs
even if, when reading from left to right, the two string literals are not added directly. For
example, the expression 1 + "a" + "b" parses as (1 + "a") + "b"}, but it is
transformed into 1 + "ab".
This is the same transformation performed by javac automatically. Javac seems to ignore string literals surrounded in parentheses, so this method does as well.
node - a JavaParser Nodepublic static com.github.javaparser.ParserConfiguration.LanguageLevel getCurrentSourceVersion(ProcessingEnvironment env)
ParserConfiguration.LanguageLevel corresponding to
the current source version.env - processing environment used to get source version