internal static CodeNode Parse(ParseInfo state, ref int index, CodeFragmentType ruleSet, bool throwError)
{
while ((index < state.Code.Length) && (Tools.IsWhiteSpace(state.Code[index])))
{
index++;
}
if (index >= state.Code.Length || state.Code[index] == '}')
{
return(null);
}
int sindex = index;
if (state.Code[index] == ',' || state.Code[index] == ';')
{
return(null);
}
if (index >= state.Code.Length)
{
return(null);
}
for (int i = 0; i < rules[(int)ruleSet].Count; i++)
{
if (rules[(int)ruleSet][i].Validate(state.Code, index))
{
var result = rules[(int)ruleSet][i].Parse(state, ref index);
if (result != null)
{
return(result);
}
}
}
if (throwError)
{
ExceptionHelper.ThrowUnknownToken(state.Code, sindex);
}
return(null);
}
internal static CodeNode Parse(ParseInfo state, ref int index, CodeFragmentType ruleSet)
{
return(Parse(state, ref index, ruleSet, true));
}
public CustomCodeFragment(CodeFragmentType codeFragmentType, params string[] reservedWords)
{
Type = codeFragmentType;
ReservedWords = reservedWords ?? new string[0];
}
public CustomCodeFragment(CodeFragmentType codeFragmentType)
: this(codeFragmentType, null)
{
}
/**
* Parses a piece of Java code that matches a certain grammar rule.
*
* @param pSource The Java source that should get parsed.
* @param pCodeFragmentType The code fragment type defining the grammar
* rule that should be used to parse the code
* fragment.
* @param pErrorMessages If this argument is not <code>null</code> error
* messages emited by the parser will be added to
* this list. Otherwise these error messages will be
* written to <code>System.err</code>.
*
* @return An object of type <code>JSOParser.ParserResult</code>
* containing the root node representing a Java code fragment and
* the token stream containing the tokens of the parsed source.
*
* @
* if parsing the code fragment or creating the AST failes.
* @throws RecognitionException
*
* __TEST__ All parsable code fragments still untested for parser failure.
*/
private ParserResult parse(
ANTLRStringStream pSource, CodeFragmentType pCodeFragmentType,
List<String> pErrorMessages)
{
ParserResult result = new ParserResult();
bool isMessageCollectingEnabled = pErrorMessages != null;
mLexer.CharStream = pSource;
mLexer.EnableErrorMessageCollection(isMessageCollectingEnabled);
TokenRewriteStream tokenRewriteStream =
new TokenRewriteStream(mLexer);
if (mParser != null) {
mParser.TokenStream = tokenRewriteStream;
} else {
mParser = new JavaParser(tokenRewriteStream);
mParser.TreeAdaptor = mAST2JSOMTreeAdaptor;
}
mParser.EnableErrorMessageCollection(isMessageCollectingEnabled);
AST2JSOMTree tree = null;
if (pCodeFragmentType == CodeFragmentType.ANNOTATION) {
tree = (AST2JSOMTree) mParser.annotation().Tree;
} else if (pCodeFragmentType == CodeFragmentType.ASSERT_STATEMENT) {
tree = (AST2JSOMTree) mParser.assertStatement().Tree;
} else if (pCodeFragmentType == CodeFragmentType.BREAK_STATEMENT) {
tree = (AST2JSOMTree) mParser.breakStatement().Tree;
} else if (pCodeFragmentType == CodeFragmentType.CLASS_EXTENDS_CLAUSE) {
tree = (AST2JSOMTree) mParser.classExtendsClause().Tree;
} else if ( pCodeFragmentType
== CodeFragmentType.COMPLEX_TYPE_IDENTIFIER) {
tree = (AST2JSOMTree) mParser.typeIdent().Tree;
} else if (pCodeFragmentType == CodeFragmentType.CONTINUE_STATEMENT) {
tree = (AST2JSOMTree) mParser.continueStatement().Tree;
} else if (pCodeFragmentType == CodeFragmentType.DO_WHILE_STATEMENT) {
tree = (AST2JSOMTree) mParser.doWhileStatement().Tree;
} else if (pCodeFragmentType == CodeFragmentType.ENUM_CONSTANT) {
tree = (AST2JSOMTree) mParser.enumConstant().Tree;
} else if (pCodeFragmentType == CodeFragmentType.EXPRESSION) {
tree = (AST2JSOMTree) mParser.expression().Tree;
} else if (pCodeFragmentType == CodeFragmentType.EXPRESSION_STATEMENT) {
tree = (AST2JSOMTree) mParser.expressionStatement().Tree;
} else if (pCodeFragmentType == CodeFragmentType.FOR_STATEMENT) {
tree = (AST2JSOMTree) mParser.forStatement().Tree;
} else if (pCodeFragmentType == CodeFragmentType.FOREACH_STATEMENT) {
tree = (AST2JSOMTree) mParser.forEachStatement().Tree;
} else if ( pCodeFragmentType
== CodeFragmentType.FORMAL_PARAMETER_LIST) {
tree = (AST2JSOMTree) mParser.formalParameterList().Tree;
} else if ( pCodeFragmentType
== CodeFragmentType.GENERIC_TYPE_ARGUMENT_LIST) {
tree = (AST2JSOMTree) mParser.genericTypeArgumentList().Tree;
} else if ( pCodeFragmentType
== CodeFragmentType.GENERIC_TYPE_PARAMETER_LIST) {
tree = (AST2JSOMTree) mParser.genericTypeParameterList().Tree;
} else if (pCodeFragmentType == CodeFragmentType.IF_STATEMENT) {
tree = (AST2JSOMTree) mParser.ifStatement().Tree;
} else if (pCodeFragmentType == CodeFragmentType.IMPLEMENTS_CLAUSE) {
tree = (AST2JSOMTree) mParser.implementsClause().Tree;
} else if (pCodeFragmentType == CodeFragmentType.IMPORT_DECLARATION) {
tree = (AST2JSOMTree) mParser.importDeclaration().Tree;
} else if ( pCodeFragmentType
== CodeFragmentType.INTERFACE_EXTENDS_CLAUSE) {
tree = (AST2JSOMTree) mParser.interfaceExtendsClause().Tree;
} else if (pCodeFragmentType == CodeFragmentType.JAVA_SOURCE) {
tree = (AST2JSOMTree) mParser.javaSource().Tree;
} else if (pCodeFragmentType == CodeFragmentType.LABELED_STATEMENT) {
tree = (AST2JSOMTree) mParser.labeledStatement().Tree;
} else if (pCodeFragmentType == CodeFragmentType.LOCAL_VARIABLE_DECLARATION) {
tree = (AST2JSOMTree) mParser.localVariableDeclaration().Tree;
} else if (pCodeFragmentType == CodeFragmentType.MODIFIER_LIST) {
tree = (AST2JSOMTree) mParser.modifierList().Tree;
} else if (pCodeFragmentType == CodeFragmentType.PRIMITIVE_TYPE) {
tree = (AST2JSOMTree) mParser.primitiveType().Tree;
} else if (pCodeFragmentType == CodeFragmentType.QUALIFIED_IDENTIFIER) {
tree = (AST2JSOMTree) mParser.qualifiedIdentifier().Tree;
} else if (pCodeFragmentType == CodeFragmentType.RETURN_STATEMENT) {
tree = (AST2JSOMTree) mParser.returnStatement().Tree;
} else if (pCodeFragmentType == CodeFragmentType.STATEMENT) {
tree = (AST2JSOMTree) mParser.statement().Tree;
} else if (pCodeFragmentType == CodeFragmentType.STATEMENT_BLOCK) {
tree = (AST2JSOMTree) mParser.block().Tree;
} else if (pCodeFragmentType == CodeFragmentType.STATEMENT_BLOCK_ELEMENT) {
tree = (AST2JSOMTree) mParser.blockStatement().Tree;
} else if (pCodeFragmentType == CodeFragmentType.SWITCH_CASE_LABEL) {
tree = (AST2JSOMTree) mParser.switchCaseLabel().Tree;
} else if (pCodeFragmentType == CodeFragmentType.SWITCH_DEFAULT_LABEL) {
tree = (AST2JSOMTree) mParser.switchDefaultLabel().Tree;
} else if (pCodeFragmentType == CodeFragmentType.SWITCH_STATEMENT) {
tree = (AST2JSOMTree) mParser.switchStatement().Tree;
} else if (pCodeFragmentType == CodeFragmentType.SYNCHRONIZED_STATEMENT) {
tree = (AST2JSOMTree) mParser.synchronizedStatement().Tree;
} else if (pCodeFragmentType == CodeFragmentType.THROW_STATEMENT) {
tree = (AST2JSOMTree) mParser.throwStatement().Tree;
} else if (pCodeFragmentType == CodeFragmentType.THROWS_CLAUSE) {
tree = (AST2JSOMTree) mParser.throwsClause().Tree;
} else if (pCodeFragmentType == CodeFragmentType.TRY_STATEMENT) {
tree = (AST2JSOMTree) mParser.tryStatement().Tree;
} else if (pCodeFragmentType == CodeFragmentType.TRY_STATEMENT_CATCH_CLAUSE) {
tree = (AST2JSOMTree) mParser.catchClause().Tree;
} else if (pCodeFragmentType == CodeFragmentType.TYPE) {
tree = (AST2JSOMTree) mParser.type().Tree;
} else if (pCodeFragmentType == CodeFragmentType.TYPE_DECLARATION) {
tree = (AST2JSOMTree) mParser.typeDeclaration().Tree;
} else if (pCodeFragmentType == CodeFragmentType.VARIABLE_DECLARATOR_IDENTIFIER) {
// Simply use the grammar rule for local variables.
tree = (AST2JSOMTree) mParser.variableDeclaratorId().Tree;
} else if (pCodeFragmentType == CodeFragmentType.VARIABLE_INITIALIZER) {
tree = (AST2JSOMTree) mParser.variableInitializer().Tree;
} else if (pCodeFragmentType == CodeFragmentType.WHILE_STATEMENT) {
tree = (AST2JSOMTree) mParser.whileStatement().Tree;
} else if (pCodeFragmentType != null) {
throw new JSourceUnmarshallerException(
UnmarshallerMessages
.getUnsupportedCodeFragmentTypeMessage(
pCodeFragmentType));
} else {
// TODO Internationalize the message.
throw new JSourceUnmarshallerException(
"The argument stating the code fragment type mustn't be " +
"'null'");
}
// On parser errors the generated parser may return something
// undefined rather than 'null'.
if (!mParser.HasErrors()) {
// TODO It seems that the JSourceObjectizer uses the parser result
// instead of the tree parser result. CHECK THIS!
CommonTreeNodeStream treeNodes =
new CommonTreeNodeStream(mAST2JSOMTreeAdaptor, tree);
treeNodes.TokenStream = tokenRewriteStream;
if (mTreeParser != null) {
mTreeParser.Reset();
mTreeParser.SetTreeNodeStream(treeNodes);
} else {
mTreeParser = new JavaTreeParser(treeNodes);
}
mTreeParser.EnableErrorMessageCollection(
isMessageCollectingEnabled);
if (pCodeFragmentType == CodeFragmentType.ANNOTATION) {
mTreeParser.annotation();
} else if ( pCodeFragmentType
== CodeFragmentType.COMPLEX_TYPE_IDENTIFIER) {
mTreeParser.typeIdent();
} else if (pCodeFragmentType == CodeFragmentType.ENUM_CONSTANT) {
mTreeParser.enumConstant();
} else if (pCodeFragmentType == CodeFragmentType.EXPRESSION) {
mTreeParser.expression();
} else if ( pCodeFragmentType
== CodeFragmentType.CLASS_EXTENDS_CLAUSE
|| pCodeFragmentType
== CodeFragmentType.INTERFACE_EXTENDS_CLAUSE) {
mTreeParser.extendsClause();
} else if ( pCodeFragmentType
== CodeFragmentType.FORMAL_PARAMETER_LIST) {
mTreeParser.formalParameterList();
} else if ( pCodeFragmentType
== CodeFragmentType.GENERIC_TYPE_ARGUMENT_LIST) {
mTreeParser.genericTypeArgumentList();
} else if ( pCodeFragmentType
== CodeFragmentType.GENERIC_TYPE_PARAMETER_LIST) {
mTreeParser.genericTypeParameterList();
} else if ( pCodeFragmentType
== CodeFragmentType.IMPLEMENTS_CLAUSE) {
mTreeParser.implementsClause();
} else if ( pCodeFragmentType
== CodeFragmentType.IMPORT_DECLARATION) {
mTreeParser.importDeclaration();
} else if (pCodeFragmentType == CodeFragmentType.JAVA_SOURCE) {
mTreeParser.javaSource();
} else if (pCodeFragmentType == CodeFragmentType.LOCAL_VARIABLE_DECLARATION) {
mTreeParser.localVariableDeclaration();
} else if (pCodeFragmentType == CodeFragmentType.MODIFIER_LIST) {
mTreeParser.modifierList();
} else if (pCodeFragmentType == CodeFragmentType.PRIMITIVE_TYPE) {
mTreeParser.primitiveType();
} else if ( pCodeFragmentType
== CodeFragmentType.QUALIFIED_IDENTIFIER) {
mTreeParser.qualifiedIdentifier();
} else if ( pCodeFragmentType == CodeFragmentType.STATEMENT
|| pCodeFragmentType == CodeFragmentType.ASSERT_STATEMENT
|| pCodeFragmentType == CodeFragmentType.BREAK_STATEMENT
|| pCodeFragmentType == CodeFragmentType.CONTINUE_STATEMENT
|| pCodeFragmentType == CodeFragmentType.DO_WHILE_STATEMENT
|| pCodeFragmentType == CodeFragmentType.EXPRESSION_STATEMENT
|| pCodeFragmentType == CodeFragmentType.FOR_STATEMENT
|| pCodeFragmentType == CodeFragmentType.FOREACH_STATEMENT
|| pCodeFragmentType == CodeFragmentType.IF_STATEMENT
|| pCodeFragmentType == CodeFragmentType.LABELED_STATEMENT
|| pCodeFragmentType == CodeFragmentType.RETURN_STATEMENT
|| pCodeFragmentType == CodeFragmentType.SWITCH_STATEMENT
|| pCodeFragmentType == CodeFragmentType.SYNCHRONIZED_STATEMENT
|| pCodeFragmentType == CodeFragmentType.THROW_STATEMENT
|| pCodeFragmentType == CodeFragmentType.TRY_STATEMENT
|| pCodeFragmentType == CodeFragmentType.WHILE_STATEMENT) {
mTreeParser.statement();
} else if (pCodeFragmentType == CodeFragmentType.SWITCH_CASE_LABEL) {
mTreeParser.switchCaseLabel();
} else if (pCodeFragmentType == CodeFragmentType.SWITCH_DEFAULT_LABEL) {
mTreeParser.switchDefaultLabel();
} else if (pCodeFragmentType == CodeFragmentType.STATEMENT_BLOCK) {
mTreeParser.block();
} else if (pCodeFragmentType == CodeFragmentType.STATEMENT_BLOCK_ELEMENT) {
mTreeParser.blockStatement();
} else if (pCodeFragmentType == CodeFragmentType.THROWS_CLAUSE) {
mTreeParser.throwsClause();
} else if (pCodeFragmentType == CodeFragmentType.TRY_STATEMENT_CATCH_CLAUSE) {
mTreeParser.catchClause();
} else if (pCodeFragmentType == CodeFragmentType.TYPE) {
mTreeParser.type();
} else if (pCodeFragmentType == CodeFragmentType.TYPE_DECLARATION) {
mTreeParser.typeDeclaration();
} else if (pCodeFragmentType == CodeFragmentType.VARIABLE_DECLARATOR_IDENTIFIER) {
mTreeParser.variableDeclaratorId();
} else if (pCodeFragmentType == CodeFragmentType.VARIABLE_INITIALIZER) {
mTreeParser.variableInitializer();
} else if (pCodeFragmentType != null) {
throw new JSourceUnmarshallerException(
UnmarshallerMessages
.getUnsupportedCodeFragmentTypeMessage(
pCodeFragmentType));
} else {
// TODO Internationalize the message.
throw new JSourceUnmarshallerException(
"The argument stating the code fragment type mustn't be " +
"'null'");
}
result.mLineCount = mLexer.Line;
result.mTokenRewriteStream = tokenRewriteStream;
result.mTree = tree;
}
return result;
}
/**
* Parses a piece of Java code that matches a certain grammar rule.
*
* @param pCodeFragment The Java code fragment that should get parsed.
* @param pCodeFragmentType The code fragment type defining the grammar
* rule that should be used to parse the code
* fragment.
* @param pErrorMessages If this argument is not <code>null</code> error
* messages emited by the parser will be added to
* this list. Otherwise these error messages will be
* written to <code>System.err</code>.
*
* @return An object of type <code>JSOParser.ParserResult</code>
* containing the root node representing a Java code fragment and
* the token stream containing the tokens of the parsed source. If
* parsing the code fragment has been failed but no exception
* has been thrown <code>null</code> will be returned and it's
* very likely that there's at least one message within the message
* list passed to this method (if a list has been passed at all, of
* course).
*
* @ if parsing the code fragment
* failed.
*/
protected ParserResult parse(
String pCodeFragment, CodeFragmentType pCodeFragmentType,
List<String> pErrorMessages)
{
ParserResult result = new ParserResult();
try {
result = parse(
new ANTLRStringStream(pCodeFragment), pCodeFragmentType,
pErrorMessages);
} catch (RecognitionException re) {
throw new JSourceUnmarshallerException(
UnmarshallerMessages
.getJavaCodeFragmentParsingFailedMessage(
pCodeFragment, pCodeFragmentType), re);
} catch (JSourceUnmarshallerException jsue) {
// Just catch 'JSourceUnmarshallerException' exceptions in order to
// avoid jumping into the following 'catch' block.
throw jsue;
} catch (Exception e) {
throw new JSourceUnmarshallerException(
UnmarshallerMessages
.getJavaCodeFragmentParsingFailedMessage(
pCodeFragment, pCodeFragmentType), e);
} finally {
if (pErrorMessages != null) {
List<String> parserMessages;
bool isMessageHeaderEnabled = true;
parserMessages = mLexer.GetMessages();
if (parserMessages.Count > 0) {
pErrorMessages.Add(
UnmarshallerMessages
.getParserMessagesEmitedForCodeFragmentMessage(
pCodeFragment, pCodeFragmentType));
isMessageHeaderEnabled = false;
foreach (String message in parserMessages) {
pErrorMessages.Add(
UnmarshallerMessages
.getLexerMessageMessage() + message);
}
}
if (mParser != null) {
parserMessages = mParser.GetMessages();
if (parserMessages.Count > 0) {
if (isMessageHeaderEnabled) {
pErrorMessages.Add(
UnmarshallerMessages
.getParserMessagesEmitedForCodeFragmentMessage(
pCodeFragment,
pCodeFragmentType));
}
isMessageHeaderEnabled = false;
foreach (String message in parserMessages) {
pErrorMessages.Add(
UnmarshallerMessages
.getParserMessageMessage() + message);
}
}
}
if (mTreeParser != null) {
parserMessages = mTreeParser.GetMessages();
if (parserMessages.Count > 0) {
if (isMessageHeaderEnabled) {
pErrorMessages.Add(
UnmarshallerMessages
.getParserMessagesEmitedForCodeFragmentMessage(
pCodeFragment, pCodeFragmentType));
}
foreach (String message in parserMessages) {
String TEST_STR = "JavaTreeParser.g: ";
int offset = message.IndexOf(TEST_STR);
if (offset != -1) {
pErrorMessages.Add(
UnmarshallerMessages
.getTreeParserMessageMessage() +
message.Substring(
offset + TEST_STR.Length));
} else {
pErrorMessages.Add(
UnmarshallerMessages
.getTreeParserMessageMessage() +
message);
}
}
}
}
}
}
if (result.mTree != null) {
return result;
}
return null;
}
