/*******************************************************************************
* Copyright (c) 2000, 2013 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jdt.internal.compiler.parser;
import java.util.List;
import org.eclipse.jdt.core.compiler.CharOperation;
import org.eclipse.jdt.core.compiler.InvalidInputException;
import org.eclipse.jdt.internal.compiler.ast.*;
import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants;
import org.eclipse.jdt.internal.compiler.util.Util;
/**
* Parser specialized for decoding javadoc comments
*/
public class JavadocParser extends AbstractCommentParser {
// Public fields
public Javadoc docComment;
// bug https://bugs.eclipse.org/bugs/show_bug.cgi?id=51600
// Store param references for tag with invalid syntax
private int invalidParamReferencesPtr = -1;
private ASTNode[] invalidParamReferencesStack;
// bug https://bugs.eclipse.org/bugs/show_bug.cgi?id=153399
// Store value tag positions
private long validValuePositions, invalidValuePositions;
// returns whether this JavadocParser should report errors or not (overrides reportProblems)
// see "https://bugs.eclipse.org/bugs/show_bug.cgi?id=192449"
public boolean shouldReportProblems = true;
// flag to let the parser know that the current tag is waiting for a description
// see "https://bugs.eclipse.org/bugs/show_bug.cgi?id=222900"
private int tagWaitingForDescription;
public JavadocParser(Parser sourceParser) {
super(sourceParser);
this.kind = COMPIL_PARSER | TEXT_VERIF;
if (sourceParser != null && sourceParser.options != null) {
this.setJavadocPositions = sourceParser.options.processAnnotations;
}
}
/* (non-Javadoc)
* Returns true if tag @deprecated is present in javadoc comment.
*
* If javadoc checking is enabled, will also construct an Javadoc node, which will be stored into Parser.javadoc
* slot for being consumed later on.
*/
public boolean checkDeprecation(int commentPtr) {
// Store javadoc positions
this.javadocStart = this.sourceParser.scanner.commentStarts[commentPtr];
this.javadocEnd = this.sourceParser.scanner.commentStops[commentPtr]-1;
this.firstTagPosition = this.sourceParser.scanner.commentTagStarts[commentPtr];
this.validValuePositions = -1;
this.invalidValuePositions = -1;
this.tagWaitingForDescription = NO_TAG_VALUE;
// Init javadoc if necessary
if (this.checkDocComment) {
this.docComment = new Javadoc(this.javadocStart, this.javadocEnd);
} else if (this.setJavadocPositions) {
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=189459
// if annotation processors are there, javadoc object is required but
// they need not be resolved
this.docComment = new Javadoc(this.javadocStart, this.javadocEnd);
this.docComment.bits &= ~ASTNode.ResolveJavadoc;
} else {
this.docComment = null;
}
// If there's no tag in javadoc, return without parsing it
if (this.firstTagPosition == 0) {
switch (this.kind & PARSER_KIND) {
case COMPIL_PARSER:
case SOURCE_PARSER:
return false;
}
}
// Parse
try {
this.source = this.sourceParser.scanner.source;
this.scanner.setSource(this.source); // updating source in scanner
if (this.checkDocComment) {
// Initialization
this.scanner.lineEnds = this.sourceParser.scanner.lineEnds;
this.scanner.linePtr = this.sourceParser.scanner.linePtr;
this.lineEnds = this.scanner.lineEnds;
commentParse();
} else {
// Parse comment
Scanner sourceScanner = this.sourceParser.scanner;
int firstLineNumber = Util.getLineNumber(this.javadocStart, sourceScanner.lineEnds, 0, sourceScanner.linePtr);
int lastLineNumber = Util.getLineNumber(this.javadocEnd, sourceScanner.lineEnds, 0, sourceScanner.linePtr);
this.index = this.javadocStart +3;
// scan line per line, since tags must be at beginning of lines only
this.deprecated = false;
nextLine : for (int line = firstLineNumber; line <= lastLineNumber; line++) {
int lineStart = line == firstLineNumber
? this.javadocStart + 3 // skip leading /**
: this.sourceParser.scanner.getLineStart(line);
this.index = lineStart;
this.lineEnd = line == lastLineNumber
? this.javadocEnd - 2 // remove trailing * /
: this.sourceParser.scanner.getLineEnd(line);
nextCharacter : while (this.index < this.lineEnd) {
char c = readChar(); // consider unicodes
switch (c) {
case '*' :
case '\u000c' : /* FORM FEED */
case ' ' : /* SPACE */
case '\t' : /* HORIZONTAL TABULATION */
case '\n' : /* LINE FEED */
case '\r' : /* CR */
// do nothing for space or '*' characters
continue nextCharacter;
case '@' :
parseSimpleTag();
if (this.tagValue == TAG_DEPRECATED_VALUE) {
if (this.abort) break nextCharacter;
}
}
continue nextLine;
}
}
return this.deprecated;
}
} finally {
this.source = null; // release source as soon as finished
this.scanner.setSource((char[]) null); //release source in scanner
}
return this.deprecated;
}
/* (non-Javadoc)
* @see org.eclipse.jdt.internal.compiler.parser.AbstractCommentParser#createArgumentReference(char[], java.lang.Object, int)
*/
protected Object createArgumentReference(char[] name, int dim, boolean isVarargs, Object typeRef, long[] dimPositions, long argNamePos) throws InvalidInputException {
try {
TypeReference argTypeRef = (TypeReference) typeRef;
if (dim > 0) {
long pos = (((long) argTypeRef.sourceStart) << 32) + argTypeRef.sourceEnd;
if (typeRef instanceof JavadocSingleTypeReference) {
JavadocSingleTypeReference singleRef = (JavadocSingleTypeReference) typeRef;
argTypeRef = new JavadocArraySingleTypeReference(singleRef.token, dim, pos);
} else {
JavadocQualifiedTypeReference qualifRef = (JavadocQualifiedTypeReference) typeRef;
argTypeRef = new JavadocArrayQualifiedTypeReference(qualifRef, dim);
}
}
int argEnd = argTypeRef.sourceEnd;
if (dim > 0) {
argEnd = (int) dimPositions[dim-1];
if (isVarargs) {
argTypeRef.bits |= ASTNode.IsVarArgs; // set isVarArgs
}
}
if (argNamePos >= 0) argEnd = (int) argNamePos;
return new JavadocArgumentExpression(name, argTypeRef.sourceStart, argEnd, argTypeRef);
}
catch (ClassCastException ex) {
throw new InvalidInputException();
}
}
/* (non-Javadoc)
* @see org.eclipse.jdt.internal.compiler.parser.AbstractCommentParser#createFieldReference()
*/
protected Object createFieldReference(Object receiver) throws InvalidInputException {
try {
// Get receiver type
TypeReference typeRef = (TypeReference) receiver;
if (typeRef == null) {
char[] name = this.sourceParser.compilationUnit.getMainTypeName();
typeRef = new JavadocImplicitTypeReference(name, this.memberStart);
}
// Create field
JavadocFieldReference field = new JavadocFieldReference(this.identifierStack[0], this.identifierPositionStack[0]);
field.receiver = typeRef;
field.tagSourceStart = this.tagSourceStart;
field.tagSourceEnd = this.tagSourceEnd;
field.tagValue = this.tagValue;
return field;
}
catch (ClassCastException ex) {
throw new InvalidInputException();
}
}
/* (non-Javadoc)
* @see org.eclipse.jdt.internal.compiler.parser.AbstractCommentParser#createMethodReference(java.lang.Object[])
*/
protected Object createMethodReference(Object receiver, List arguments) throws InvalidInputException {
try {
// Get receiver type
TypeReference typeRef = (TypeReference) receiver;
// Decide whether we have a constructor or not
boolean isConstructor = false;
int length = this.identifierLengthStack[0]; // may be > 1 for member class constructor reference
if (typeRef == null) {
char[] name = this.sourceParser.compilationUnit.getMainTypeName();
TypeDeclaration typeDecl = getParsedTypeDeclaration();
if (typeDecl != null) {
name = typeDecl.name;
}
isConstructor = CharOperation.equals(this.identifierStack[length-1], name);
typeRef = new JavadocImplicitTypeReference(name, this.memberStart);
} else {
if (typeRef instanceof JavadocSingleTypeReference) {
char[] name = ((JavadocSingleTypeReference)typeRef).token;
isConstructor = CharOperation.equals(this.identifierStack[length-1], name);
} else if (typeRef instanceof JavadocQualifiedTypeReference) {
char[][] tokens = ((JavadocQualifiedTypeReference)typeRef).tokens;
int last = tokens.length-1;
isConstructor = CharOperation.equals(this.identifierStack[length-1], tokens[last]);
if (isConstructor) {
boolean valid = true;
if (valid) {
for (int i=0; i<length-1 && valid; i++) {
valid = CharOperation.equals(this.identifierStack[i], tokens[i]);
}
}
if (!valid) {
if (this.reportProblems) {
this.sourceParser.problemReporter().javadocInvalidMemberTypeQualification((int)(this.identifierPositionStack[0]>>>32), (int)this.identifierPositionStack[length-1], -1);
}
return null;
}
}
} else {
throw new InvalidInputException();
}
}
// Create node
if (arguments == null) {
if (isConstructor) {
JavadocAllocationExpression allocation = new JavadocAllocationExpression(this.identifierPositionStack[length-1]);
allocation.type = typeRef;
allocation.tagValue = this.tagValue;
allocation.sourceEnd = this.scanner.getCurrentTokenEndPosition();
if (length == 1) {
allocation.qualification = new char[][] { this.identifierStack[0] };
} else {
System.arraycopy(this.identifierStack, 0, allocation.qualification = new char[length][], 0, length);
allocation.sourceStart = (int) (this.identifierPositionStack[0] >>> 32);
}
allocation.memberStart = this.memberStart;
return allocation;
} else {
JavadocMessageSend msg = new JavadocMessageSend(this.identifierStack[length-1], this.identifierPositionStack[length-1]);
msg.receiver = typeRef;
msg.tagValue = this.tagValue;
msg.sourceEnd = this.scanner.getCurrentTokenEndPosition();
return msg;
}
} else {
JavadocArgumentExpression[] expressions = new JavadocArgumentExpression[arguments.size()];
arguments.toArray(expressions);
if (isConstructor) {
JavadocAllocationExpression allocation = new JavadocAllocationExpression(this.identifierPositionStack[length-1]);
allocation.arguments = expressions;
allocation.type = typeRef;
allocation.tagValue = this.tagValue;
allocation.sourceEnd = this.scanner.getCurrentTokenEndPosition();
if (length == 1) {
allocation.qualification = new char[][] { this.identifierStack[0] };
} else {
System.arraycopy(this.identifierStack, 0, allocation.qualification = new char[length][], 0, length);
allocation.sourceStart = (int) (this.identifierPositionStack[0] >>> 32);
}
allocation.memberStart = this.memberStart;
return allocation;
} else {
JavadocMessageSend msg = new JavadocMessageSend(this.identifierStack[length-1], this.identifierPositionStack[length-1], expressions);
msg.receiver = typeRef;
msg.tagValue = this.tagValue;
msg.sourceEnd = this.scanner.getCurrentTokenEndPosition();
return msg;
}
}
}
catch (ClassCastException ex) {
throw new InvalidInputException();
}
}
/* (non-Javadoc)
* @see org.eclipse.jdt.internal.compiler.parser.AbstractCommentParser#createReturnStatement()
*/
protected Object createReturnStatement() {
return new JavadocReturnStatement(this.scanner.getCurrentTokenStartPosition(),
this.scanner.getCurrentTokenEndPosition());
}
/* (non-Javadoc)
* @see org.eclipse.jdt.internal.compiler.parser.AbstractCommentParser#parseTagName()
*/
protected void createTag() {
this.tagValue = TAG_OTHERS_VALUE;
}
/* (non-Javadoc)
* @see org.eclipse.jdt.internal.compiler.parser.AbstractCommentParser#createTypeReference()
*/
protected Object createTypeReference(int primitiveToken) {
TypeReference typeRef = null;
int size = this.identifierLengthStack[this.identifierLengthPtr];
if (size == 1) { // Single Type ref
typeRef = new JavadocSingleTypeReference(
this.identifierStack[this.identifierPtr],
this.identifierPositionStack[this.identifierPtr],
this.tagSourceStart,
this.tagSourceEnd);
} else if (size > 1) { // Qualified Type ref
char[][] tokens = new char[size][];
System.arraycopy(this.identifierStack, this.identifierPtr - size + 1, tokens, 0, size);
long[] positions = new long[size];
System.arraycopy(this.identifierPositionStack, this.identifierPtr - size + 1, positions, 0, size);
typeRef = new JavadocQualifiedTypeReference(tokens, positions, this.tagSourceStart, this.tagSourceEnd);
}
return typeRef;
}
/*
* Get current parsed type declaration.
*/
protected TypeDeclaration getParsedTypeDeclaration() {
int ptr = this.sourceParser.astPtr;
while (ptr >= 0) {
Object node = this.sourceParser.astStack[ptr];
if (node instanceof TypeDeclaration) {
TypeDeclaration typeDecl = (TypeDeclaration) node;
if (typeDecl.bodyEnd == 0) { // type declaration currenly parsed
return typeDecl;
}
}
ptr--;
}
return null;
}
/*
* Parse @throws tag declaration and flag missing description if corresponding option is enabled
*/
protected boolean parseThrows() {
boolean valid = super.parseThrows();
this.tagWaitingForDescription = valid && this.reportProblems ? TAG_THROWS_VALUE : NO_TAG_VALUE;
return valid;
}
/*
* Parse @return tag declaration
*/
protected boolean parseReturn() {
if (this.returnStatement == null) {
this.returnStatement = createReturnStatement();
return true;
}
if (this.reportProblems) {
this.sourceParser.problemReporter().javadocDuplicatedReturnTag(
this.scanner.getCurrentTokenStartPosition(),
this.scanner.getCurrentTokenEndPosition());
}
return false;
}
protected void parseSimpleTag() {
// Read first char
// readChar() code is inlined to balance additional method call in checkDeprectation(int)
char first = this.source[this.index++];
if (first == '\\' && this.source[this.index] == 'u') {
int c1, c2, c3, c4;
int pos = this.index;
this.index++;
while (this.source[this.index] == 'u')
this.index++;
if (!(((c1 = ScannerHelper.getHexadecimalValue(this.source[this.index++])) > 15 || c1 < 0)
|| ((c2 = ScannerHelper.getHexadecimalValue(this.source[this.index++])) > 15 || c2 < 0)
|| ((c3 = ScannerHelper.getHexadecimalValue(this.source[this.index++])) > 15 || c3 < 0)
|| ((c4 = ScannerHelper.getHexadecimalValue(this.source[this.index++])) > 15 || c4 < 0))) {
first = (char) (((c1 * 16 + c2) * 16 + c3) * 16 + c4);
} else {
this.index = pos;
}
}
// switch on first tag char
switch (first) {
case 'd':
if ((readChar() == 'e') &&
(readChar() == 'p') && (readChar() == 'r') &&
(readChar() == 'e') && (readChar() == 'c') &&
(readChar() == 'a') && (readChar() == 't') &&
(readChar() == 'e') && (readChar() == 'd')) {
// ensure the tag is properly ended: either followed by a space, a tab, line end or asterisk.
char c = readChar();
if (ScannerHelper.isWhitespace(c) || c == '*') {
this.abort = true;
this.deprecated = true;
this.tagValue = TAG_DEPRECATED_VALUE;
}
}
break;
}
}
protected boolean parseTag(int previousPosition) throws InvalidInputException {
// Complain when tag is missing a description
// Note that if the parse of an inline tag has already started, consider it
// as the expected description, hence do not report any warning
switch (this.tagWaitingForDescription) {
case TAG_PARAM_VALUE:
case TAG_THROWS_VALUE:
if (!this.inlineTagStarted) {
int start = (int) (this.identifierPositionStack[0] >>> 32);
int end = (int) this.identifierPositionStack[this.identifierPtr];
this.sourceParser.problemReporter().javadocMissingTagDescriptionAfterReference(start, end, this.sourceParser.modifiers);
}
break;
case NO_TAG_VALUE:
break;
default:
if (!this.inlineTagStarted) {
this.sourceParser.problemReporter().javadocMissingTagDescription(TAG_NAMES[this.tagWaitingForDescription], this.tagSourceStart, this.tagSourceEnd, this.sourceParser.modifiers);
}
break;
}
this.tagWaitingForDescription = NO_TAG_VALUE;
// Verify first character
this.tagSourceStart = this.index;
this.tagSourceEnd = previousPosition;
this.scanner.startPosition = this.index;
int currentPosition = this.index;
char firstChar = readChar();
switch (firstChar) {
case ' ':
case '*':
case '}':
case '#':
// the first character is not valid, hence report invalid empty tag
if (this.reportProblems) this.sourceParser.problemReporter().javadocInvalidTag(previousPosition, currentPosition);
if (this.textStart == -1) this.textStart = currentPosition;
this.scanner.currentCharacter = firstChar;
return false;
default:
if (ScannerHelper.isWhitespace(firstChar)) {
// the first character is not valid, hence report invalid empty tag
if (this.reportProblems) this.sourceParser.problemReporter().javadocInvalidTag(previousPosition, currentPosition);
if (this.textStart == -1) this.textStart = currentPosition;
this.scanner.currentCharacter = firstChar;
return false;
}
break;
}
// Read tag name
char[] tagName = new char[32];
int length = 0;
char currentChar = firstChar;
int tagNameLength = tagName.length;
boolean validTag = true;
tagLoop: while (true) {
if (length == tagNameLength) {
System.arraycopy(tagName, 0, tagName = new char[tagNameLength+32], 0, tagNameLength);
tagNameLength = tagName.length;
}
tagName[length++] = currentChar;
currentPosition = this.index;
currentChar = readChar();
switch (currentChar) {
case ' ':
case '*':
case '}':
// these characters mark the end of the tag reading
break tagLoop;
case '#':
// invalid tag character, mark the tag as invalid but continue until the end of the tag
validTag = false;
break;
default:
if (ScannerHelper.isWhitespace(currentChar)) {
// whitespace characters mark the end of the tag reading
break tagLoop;
}
break;
}
}
// Init positions
this.tagSourceEnd = currentPosition - 1;
this.scanner.currentCharacter = currentChar;
this.scanner.currentPosition = currentPosition;
this.index = this.tagSourceEnd+1;
// Return if the tag is not valid
if (!validTag) {
if (this.reportProblems) this.sourceParser.problemReporter().javadocInvalidTag(this.tagSourceStart, this.tagSourceEnd);
if (this.textStart == -1) this.textStart = this.index;
this.scanner.currentCharacter = currentChar;
return false;
}
// Decide which parse to perform depending on tag name
this.tagValue = TAG_OTHERS_VALUE;
boolean valid = false;
switch (firstChar) {
case 'a':
if (length == TAG_AUTHOR_LENGTH && CharOperation.equals(TAG_AUTHOR, tagName, 0, length)) {
this.tagValue = TAG_AUTHOR_VALUE;
this.tagWaitingForDescription = this.tagValue;
}
break;
case 'c':
if (length == TAG_CATEGORY_LENGTH && CharOperation.equals(TAG_CATEGORY, tagName, 0, length)) {
this.tagValue = TAG_CATEGORY_VALUE;
if (!this.inlineTagStarted) {
valid = parseIdentifierTag(false); // TODO (frederic) reconsider parameter value when @category will be significant in spec
}
} else if (length == TAG_CODE_LENGTH && this.inlineTagStarted && CharOperation.equals(TAG_CODE, tagName, 0, length)) {
this.tagValue = TAG_CODE_VALUE;
this.tagWaitingForDescription = this.tagValue;
}
break;
case 'd':
if (length == TAG_DEPRECATED_LENGTH && CharOperation.equals(TAG_DEPRECATED, tagName, 0, length)) {
this.deprecated = true;
valid = true;
this.tagValue = TAG_DEPRECATED_VALUE;
this.tagWaitingForDescription = this.tagValue;
} else if (length == TAG_DOC_ROOT_LENGTH && CharOperation.equals(TAG_DOC_ROOT, tagName, 0, length)) {
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=227730
// identify @docRoot tag as a base tag that does not expect any argument
valid = true;
this.tagValue = TAG_DOC_ROOT_VALUE;
}
break;
case 'e':
if (length == TAG_EXCEPTION_LENGTH && CharOperation.equals(TAG_EXCEPTION, tagName, 0, length)) {
this.tagValue = TAG_EXCEPTION_VALUE;
if (!this.inlineTagStarted) {
valid = parseThrows();
}
}
break;
case 'i':
if (length == TAG_INHERITDOC_LENGTH && CharOperation.equals(TAG_INHERITDOC, tagName, 0, length)) {
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=247037, @inheritDoc usage is illegal
// outside of few block tags and the main description.
switch (this.lastBlockTagValue) {
case TAG_RETURN_VALUE:
case TAG_THROWS_VALUE:
case TAG_EXCEPTION_VALUE:
case TAG_PARAM_VALUE:
case NO_TAG_VALUE: // Still in main description
valid = true;
if (this.reportProblems) {
recordInheritedPosition((((long) this.tagSourceStart) << 32) + this.tagSourceEnd);
}
if (this.inlineTagStarted) {
// parse a 'valid' inheritDoc tag
parseInheritDocTag();
}
break;
default:
valid = false;
if (this.reportProblems) {
this.sourceParser.problemReporter().javadocUnexpectedTag(this.tagSourceStart,
this.tagSourceEnd);
}
}
this.tagValue = TAG_INHERITDOC_VALUE;
}
break;
case 'l':
if (length == TAG_LINK_LENGTH && CharOperation.equals(TAG_LINK, tagName, 0, length)) {
this.tagValue = TAG_LINK_VALUE;
if (this.inlineTagStarted || (this.kind & COMPLETION_PARSER) != 0) {
valid= parseReference();
}
} else if (length == TAG_LINKPLAIN_LENGTH && CharOperation.equals(TAG_LINKPLAIN, tagName, 0, length)) {
this.tagValue = TAG_LINKPLAIN_VALUE;
if (this.inlineTagStarted) {
valid = parseReference();
}
} else if (length == TAG_LITERAL_LENGTH && this.inlineTagStarted && CharOperation.equals(TAG_LITERAL, tagName, 0, length)) {
this.tagValue = TAG_LITERAL_VALUE;
this.tagWaitingForDescription = this.tagValue;
}
break;
case 'p':
if (length == TAG_PARAM_LENGTH && CharOperation.equals(TAG_PARAM, tagName, 0, length)) {
this.tagValue = TAG_PARAM_VALUE;
if (!this.inlineTagStarted) {
valid = parseParam();
}
}
break;
case 'r':
if (length == TAG_RETURN_LENGTH && CharOperation.equals(TAG_RETURN, tagName, 0, length)) {
this.tagValue = TAG_RETURN_VALUE;
if (!this.inlineTagStarted) {
valid = parseReturn();
}
}
break;
case 's':
if (length == TAG_SEE_LENGTH && CharOperation.equals(TAG_SEE, tagName, 0, length)) {
this.tagValue = TAG_SEE_VALUE;
if (!this.inlineTagStarted) {
valid = parseReference();
}
} else if (length == TAG_SERIAL_LENGTH && CharOperation.equals(TAG_SERIAL, tagName, 0, length)) {
this.tagValue = TAG_SERIAL_VALUE;
this.tagWaitingForDescription = this.tagValue;
} else if (length == TAG_SERIAL_DATA_LENGTH && CharOperation.equals(TAG_SERIAL_DATA, tagName, 0, length)) {
this.tagValue = TAG_SERIAL_DATA_VALUE;
this.tagWaitingForDescription = this.tagValue;
} else if (length == TAG_SERIAL_FIELD_LENGTH && CharOperation.equals(TAG_SERIAL_FIELD, tagName, 0, length)) {
this.tagValue = TAG_SERIAL_FIELD_VALUE;
this.tagWaitingForDescription = this.tagValue;
} else if (length == TAG_SINCE_LENGTH && CharOperation.equals(TAG_SINCE, tagName, 0, length)) {
this.tagValue = TAG_SINCE_VALUE;
this.tagWaitingForDescription = this.tagValue;
}
break;
case 't':
if (length == TAG_THROWS_LENGTH && CharOperation.equals(TAG_THROWS, tagName, 0, length)) {
this.tagValue = TAG_THROWS_VALUE;
if (!this.inlineTagStarted) {
valid = parseThrows();
}
}
break;
case 'v':
if (length == TAG_VALUE_LENGTH && CharOperation.equals(TAG_VALUE, tagName, 0, length)) {
this.tagValue = TAG_VALUE_VALUE;
if (this.sourceLevel >= ClassFileConstants.JDK1_5) {
if (this.inlineTagStarted) {
valid = parseReference();
}
} else {
if (this.validValuePositions == -1) {
if (this.invalidValuePositions != -1) {
if (this.reportProblems) this.sourceParser.problemReporter().javadocUnexpectedTag((int) (this.invalidValuePositions>>>32), (int) this.invalidValuePositions);
}
if (valid) {
this.validValuePositions = (((long) this.tagSourceStart) << 32) + this.tagSourceEnd;
this.invalidValuePositions = -1;
} else {
this.invalidValuePositions = (((long) this.tagSourceStart) << 32) + this.tagSourceEnd;
}
} else {
if (this.reportProblems) this.sourceParser.problemReporter().javadocUnexpectedTag(this.tagSourceStart, this.tagSourceEnd);
}
}
} else if (length == TAG_VERSION_LENGTH && CharOperation.equals(TAG_VERSION, tagName, 0, length)) {
this.tagValue = TAG_VERSION_VALUE;
this.tagWaitingForDescription = this.tagValue;
} else {
createTag();
}
break;
default:
createTag();
break;
}
this.textStart = this.index;
if (this.tagValue != TAG_OTHERS_VALUE) {
if (!this.inlineTagStarted) {
this.lastBlockTagValue = this.tagValue;
}
// see bug https://bugs.eclipse.org/bugs/show_bug.cgi?id=267833
// Report a problem if a block tag is being used in the context of an inline tag and vice versa.
if ((this.inlineTagStarted && JAVADOC_TAG_TYPE[this.tagValue] == TAG_TYPE_BLOCK)
|| (!this.inlineTagStarted && JAVADOC_TAG_TYPE[this.tagValue] == TAG_TYPE_INLINE)) {
valid = false;
this.tagValue = TAG_OTHERS_VALUE;
this.tagWaitingForDescription = NO_TAG_VALUE;
if (this.reportProblems) {
this.sourceParser.problemReporter().javadocUnexpectedTag(this.tagSourceStart, this.tagSourceEnd);
}
}
}
return valid;
}
protected void parseInheritDocTag() {
// do nothing
}
/*
* Parse @param tag declaration and flag missing description if corresponding option is enabled
*/
protected boolean parseParam() throws InvalidInputException {
boolean valid = super.parseParam();
this.tagWaitingForDescription = valid && this.reportProblems ? TAG_PARAM_VALUE : NO_TAG_VALUE;
return valid;
}
/*
* Push a param name in ast node stack.
*/
protected boolean pushParamName(boolean isTypeParam) {
// Create param reference
ASTNode nameRef = null;
if (isTypeParam) {
JavadocSingleTypeReference ref = new JavadocSingleTypeReference(this.identifierStack[1],
this.identifierPositionStack[1],
this.tagSourceStart,
this.tagSourceEnd);
nameRef = ref;
} else {
JavadocSingleNameReference ref = new JavadocSingleNameReference(this.identifierStack[0],
this.identifierPositionStack[0],
this.tagSourceStart,
this.tagSourceEnd);
nameRef = ref;
}
// Push ref on stack
if (this.astLengthPtr == -1) { // First push
pushOnAstStack(nameRef, true);
} else {
// Verify that no @throws has been declared before
if (!isTypeParam) { // do not verify for type parameters as @throws may be invalid tag (when declared in class)
for (int i=THROWS_TAG_EXPECTED_ORDER; i<=this.astLengthPtr; i+=ORDERED_TAGS_NUMBER) {
if (this.astLengthStack[i] != 0) {
if (this.reportProblems) this.sourceParser.problemReporter().javadocUnexpectedTag(this.tagSourceStart, this.tagSourceEnd);
// bug https://bugs.eclipse.org/bugs/show_bug.cgi?id=51600
// store invalid param references in specific array
if (this.invalidParamReferencesPtr == -1l) {
this.invalidParamReferencesStack = new JavadocSingleNameReference[10];
}
int stackLength = this.invalidParamReferencesStack.length;
if (++this.invalidParamReferencesPtr >= stackLength) {
System.arraycopy(
this.invalidParamReferencesStack, 0,
this.invalidParamReferencesStack = new JavadocSingleNameReference[stackLength + AST_STACK_INCREMENT], 0,
stackLength);
}
this.invalidParamReferencesStack[this.invalidParamReferencesPtr] = nameRef;
return false;
}
}
}
switch (this.astLengthPtr % ORDERED_TAGS_NUMBER) {
case PARAM_TAG_EXPECTED_ORDER :
// previous push was a @param tag => push another param name
pushOnAstStack(nameRef, false);
break;
case SEE_TAG_EXPECTED_ORDER :
// previous push was a @see tag => push new param name
pushOnAstStack(nameRef, true);
break;
default:
return false;
}
}
return true;
}
/*
* Push a reference statement in ast node stack.
*/
protected boolean pushSeeRef(Object statement) {
if (this.astLengthPtr == -1) { // First push
pushOnAstStack(null, true);
pushOnAstStack(null, true);
pushOnAstStack(statement, true);
} else {
switch (this.astLengthPtr % ORDERED_TAGS_NUMBER) {
case PARAM_TAG_EXPECTED_ORDER :
// previous push was a @param tag => push empty @throws tag and new @see tag
pushOnAstStack(null, true);
pushOnAstStack(statement, true);
break;
case THROWS_TAG_EXPECTED_ORDER :
// previous push was a @throws tag => push new @see tag
pushOnAstStack(statement, true);
break;
case SEE_TAG_EXPECTED_ORDER :
// previous push was a @see tag => push another @see tag
pushOnAstStack(statement, false);
break;
default:
return false;
}
}
return true;
}
/* (non-Javadoc)
* @see org.eclipse.jdt.internal.compiler.parser.AbstractCommentParser#pushText(int, int)
*/
protected void pushText(int start, int end) {
// The tag gets its description => clear the flag
this.tagWaitingForDescription = NO_TAG_VALUE;
}
/*
* Push a throws type ref in ast node stack.
*/
protected boolean pushThrowName(Object typeRef) {
if (this.astLengthPtr == -1) { // First push
pushOnAstStack(null, true);
pushOnAstStack(typeRef, true);
} else {
switch (this.astLengthPtr % ORDERED_TAGS_NUMBER) {
case PARAM_TAG_EXPECTED_ORDER :
// previous push was a @param tag => push new @throws tag
pushOnAstStack(typeRef, true);
break;
case THROWS_TAG_EXPECTED_ORDER :
// previous push was a @throws tag => push another @throws tag
pushOnAstStack(typeRef, false);
break;
case SEE_TAG_EXPECTED_ORDER :
// previous push was a @see tag => push empty @param and new @throws tags
pushOnAstStack(null, true);
pushOnAstStack(typeRef, true);
break;
default:
return false;
}
}
return true;
}
/* (non-Javadoc)
* @see org.eclipse.jdt.internal.compiler.parser.AbstractCommentParser#refreshInlineTagPosition(int)
*/
protected void refreshInlineTagPosition(int previousPosition) {
// Signal tag missing description if necessary
if (this.tagWaitingForDescription!= NO_TAG_VALUE) {
this.sourceParser.problemReporter().javadocMissingTagDescription(TAG_NAMES[this.tagWaitingForDescription], this.tagSourceStart, this.tagSourceEnd, this.sourceParser.modifiers);
this.tagWaitingForDescription = NO_TAG_VALUE;
}
}
/*
* Refresh return statement
*/
protected void refreshReturnStatement() {
((JavadocReturnStatement) this.returnStatement).bits &= ~ASTNode.Empty;
}
public String toString() {
StringBuffer buffer = new StringBuffer();
buffer.append("check javadoc: ").append(this.checkDocComment).append("\n"); //$NON-NLS-1$ //$NON-NLS-2$
buffer.append("javadoc: ").append(this.docComment).append("\n"); //$NON-NLS-1$ //$NON-NLS-2$
buffer.append(super.toString());
return buffer.toString();
}
/*
* Fill associated comment fields with ast nodes information stored in stack.
*/
protected void updateDocComment() {
// Complain when tag is missing a description
// Note that if the parse of an inline tag has already started, consider it
// as the expected description, hence do not report any warning
switch (this.tagWaitingForDescription) {
case TAG_PARAM_VALUE:
case TAG_THROWS_VALUE:
if (!this.inlineTagStarted) {
int start = (int) (this.identifierPositionStack[0] >>> 32);
int end = (int) this.identifierPositionStack[this.identifierPtr];
this.sourceParser.problemReporter().javadocMissingTagDescriptionAfterReference(start, end, this.sourceParser.modifiers);
}
break;
case NO_TAG_VALUE:
break;
default:
if (!this.inlineTagStarted) {
this.sourceParser.problemReporter().javadocMissingTagDescription(TAG_NAMES[this.tagWaitingForDescription], this.tagSourceStart, this.tagSourceEnd, this.sourceParser.modifiers);
}
break;
}
this.tagWaitingForDescription = NO_TAG_VALUE;
// Set positions
if (this.inheritedPositions != null && this.inheritedPositionsPtr != this.inheritedPositions.length) {
// Compact array by shrinking.
System.arraycopy(this.inheritedPositions, 0,
this.inheritedPositions = new long[this.inheritedPositionsPtr], 0, this.inheritedPositionsPtr);
}
this.docComment.inheritedPositions = this.inheritedPositions;
this.docComment.valuePositions = this.validValuePositions != -1 ? this.validValuePositions : this.invalidValuePositions;
// Set return node if present
if (this.returnStatement != null) {
this.docComment.returnStatement = (JavadocReturnStatement) this.returnStatement;
}
// Copy array of invalid syntax param tags
if (this.invalidParamReferencesPtr >= 0) {
this.docComment.invalidParameters = new JavadocSingleNameReference[this.invalidParamReferencesPtr+1];
System.arraycopy(this.invalidParamReferencesStack, 0, this.docComment.invalidParameters, 0, this.invalidParamReferencesPtr+1);
}
// If no nodes stored return
if (this.astLengthPtr == -1) {
return;
}
// Initialize arrays
int[] sizes = new int[ORDERED_TAGS_NUMBER];
for (int i=0; i<=this.astLengthPtr; i++) {
sizes[i%ORDERED_TAGS_NUMBER] += this.astLengthStack[i];
}
this.docComment.seeReferences = new Expression[sizes[SEE_TAG_EXPECTED_ORDER]];
this.docComment.exceptionReferences = new TypeReference[sizes[THROWS_TAG_EXPECTED_ORDER]];
int paramRefPtr = sizes[PARAM_TAG_EXPECTED_ORDER];
this.docComment.paramReferences = new JavadocSingleNameReference[paramRefPtr];
int paramTypeParamPtr = sizes[PARAM_TAG_EXPECTED_ORDER];
this.docComment.paramTypeParameters = new JavadocSingleTypeReference[paramTypeParamPtr];
// Store nodes in arrays
while (this.astLengthPtr >= 0) {
int ptr = this.astLengthPtr % ORDERED_TAGS_NUMBER;
// Starting with the stack top, so get references (Expression) coming from @see declarations
switch(ptr) {
case SEE_TAG_EXPECTED_ORDER:
int size = this.astLengthStack[this.astLengthPtr--];
for (int i=0; i<size; i++) {
this.docComment.seeReferences[--sizes[ptr]] = (Expression) this.astStack[this.astPtr--];
}
break;
// Then continuing with class names (TypeReference) coming from @throw/@exception declarations
case THROWS_TAG_EXPECTED_ORDER:
size = this.astLengthStack[this.astLengthPtr--];
for (int i=0; i<size; i++) {
this.docComment.exceptionReferences[--sizes[ptr]] = (TypeReference) this.astStack[this.astPtr--];
}
break;
// Finally, finishing with parameters names (Argument) coming from @param declaration
case PARAM_TAG_EXPECTED_ORDER:
size = this.astLengthStack[this.astLengthPtr--];
for (int i=0; i<size; i++) {
Expression reference = (Expression) this.astStack[this.astPtr--];
if (reference instanceof JavadocSingleNameReference)
this.docComment.paramReferences[--paramRefPtr] = (JavadocSingleNameReference) reference;
else if (reference instanceof JavadocSingleTypeReference)
this.docComment.paramTypeParameters[--paramTypeParamPtr] = (JavadocSingleTypeReference) reference;
}
break;
}
}
// Resize param tag references arrays
if (paramRefPtr == 0) { // there's no type parameters references
this.docComment.paramTypeParameters = null;
} else if (paramTypeParamPtr == 0) { // there's no names references
this.docComment.paramReferences = null;
} else { // there both of references => resize arrays
int size = sizes[PARAM_TAG_EXPECTED_ORDER];
System.arraycopy(this.docComment.paramReferences, paramRefPtr, this.docComment.paramReferences = new JavadocSingleNameReference[size - paramRefPtr], 0, size - paramRefPtr);
System.arraycopy(this.docComment.paramTypeParameters, paramTypeParamPtr, this.docComment.paramTypeParameters = new JavadocSingleTypeReference[size - paramTypeParamPtr], 0, size - paramTypeParamPtr);
}
}
}