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Further Scanner2/Content Assist work - making CA work for ppDirectives.

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This commit is contained in:
John Camelon 2004-08-05 23:26:03 +00:00
parent 9e4777cd49
commit 33075ba9ae
1 changed files with 45 additions and 2 deletions
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47
core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/scanner2/Scanner2.java
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@ -27,14 +27,17 @@ import org.eclipse.cdt.core.parser.IScanner;
import org.eclipse.cdt.core.parser.IScannerInfo;
import org.eclipse.cdt.core.parser.ISourceElementRequestor;
import org.eclipse.cdt.core.parser.IToken;
import org.eclipse.cdt.core.parser.KeywordSetKey;
import org.eclipse.cdt.core.parser.OffsetLimitReachedException;
import org.eclipse.cdt.core.parser.ParserFactory;
import org.eclipse.cdt.core.parser.ParserLanguage;
import org.eclipse.cdt.core.parser.ParserMode;
import org.eclipse.cdt.core.parser.ScannerException;
import org.eclipse.cdt.core.parser.ast.IASTCompletionNode;
import org.eclipse.cdt.core.parser.ast.IASTFactory;
import org.eclipse.cdt.core.parser.ast.IASTInclusion;
import org.eclipse.cdt.core.parser.extension.IScannerExtension;
import org.eclipse.cdt.internal.core.parser.ast.ASTCompletionNode;
import org.eclipse.cdt.internal.core.parser.ast.EmptyIterator;
import org.eclipse.cdt.internal.core.parser.problem.IProblemFactory;
import org.eclipse.cdt.internal.core.parser.scanner.BranchTracker;
@ -47,6 +50,7 @@ import org.eclipse.cdt.internal.core.parser.scanner.ScannerUtility.InclusionDire
import org.eclipse.cdt.internal.core.parser.scanner.ScannerUtility.InclusionParseException;
import org.eclipse.cdt.internal.core.parser.token.ImagedExpansionToken;
import org.eclipse.cdt.internal.core.parser.token.ImagedToken;
import org.eclipse.cdt.internal.core.parser.token.KeywordSets;
import org.eclipse.cdt.internal.core.parser.token.SimpleToken;
/**
@ -352,7 +356,7 @@ public class Scanner2 implements IScanner, IScannerData {
}
// Return null to signify end of file
private IToken fetchToken() throws ScannerException {
private IToken fetchToken() throws ScannerException, EndOfFileException{
++count;
contextLoop:
while (bufferStackPos >= 0) {
@ -1089,7 +1093,7 @@ public class Scanner2 implements IScanner, IScannerData {
bufferPos[bufferStackPos] - start + 1) );
}
private void handlePPDirective(int pos) throws ScannerException {
private void handlePPDirective(int pos) throws ScannerException, EndOfFileException {
char[] buffer = bufferStack[bufferStackPos];
int limit = bufferLimit[bufferStackPos];
int startingLineNumber = bufferLineNums[ bufferStackPos ];
@ -1112,6 +1116,9 @@ public class Scanner2 implements IScanner, IScannerData {
}
--bufferPos[bufferStackPos];
int len = bufferPos[bufferStackPos] - start + 1;
if( isLimitReached() )
handleCompletionOnPreprocessorDirective( new String( buffer, pos, len + 1 ));
int type = ppKeywords.get(buffer, start, len);
if (type != ppKeywords.undefined) {
switch (type) {
@ -2853,4 +2860,40 @@ public class Scanner2 implements IScanner, IScannerData {
ppKeywords.put("error".toCharArray(), ppError); //$NON-NLS-1$
ppKeywords.put("include_next".toCharArray(), ppInclude_next); //$NON-NLS-1$
}
/**
* @param definition
*/
protected void handleCompletionOnDefinition(String definition) throws EndOfFileException {
IASTCompletionNode node = new ASTCompletionNode( IASTCompletionNode.CompletionKind.MACRO_REFERENCE,
null, null, definition, KeywordSets.getKeywords(KeywordSetKey.EMPTY, language), EMPTY_STRING, null );
throw new OffsetLimitReachedException( node );
}
/**
* @param expression2
*/
protected void handleCompletionOnExpression(String expression) throws EndOfFileException {
IASTCompletionNode.CompletionKind kind = IASTCompletionNode.CompletionKind.MACRO_REFERENCE;
IASTCompletionNode node = new ASTCompletionNode( kind,
null, null, EMPTY_STRING,
KeywordSets.getKeywords(((kind == IASTCompletionNode.CompletionKind.NO_SUCH_KIND )? KeywordSetKey.EMPTY : KeywordSetKey.MACRO), language), EMPTY_STRING, null );
throw new OffsetLimitReachedException( node );
}
protected void handleInvalidCompletion() throws EndOfFileException
{
throw new OffsetLimitReachedException( new ASTCompletionNode( IASTCompletionNode.CompletionKind.UNREACHABLE_CODE, null, null, EMPTY_STRING, KeywordSets.getKeywords(KeywordSetKey.EMPTY, language ) , EMPTY_STRING, null));
}
protected void handleCompletionOnPreprocessorDirective( String prefix ) throws EndOfFileException
{
throw new OffsetLimitReachedException( new ASTCompletionNode( IASTCompletionNode.CompletionKind.PREPROCESSOR_DIRECTIVE, null, null, prefix, KeywordSets.getKeywords(KeywordSetKey.PP_DIRECTIVE, language ), EMPTY_STRING, null));
}
}