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Updated Scanner to allow for more robust completion in #if directives.

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This commit is contained in:
John Camelon 2004-01-30 22:41:56 +00:00
parent df79974b26
commit de5b46412d
2 changed files with 42 additions and 23 deletions
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3
core/org.eclipse.cdt.core/parser/ChangeLog-parser
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@ -1,3 +1,6 @@
2004-01-30 John Camelon
Updated Scanner to allow for more robust completion in #if directives.
2004-01-30 John Camelon
Fixed Bug 50487 - Wrong completion kind and prefix after "#ifdef"

28
core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/scanner/Scanner.java
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@ -1827,7 +1827,7 @@ public class Scanner implements IScanner {
*/
private void handleCompletionOnDefinition(String definition) throws EndOfFileException {
IASTCompletionNode node = new ASTCompletionNode( IASTCompletionNode.CompletionKind.MACRO_REFERENCE,
null, null, definition, KeywordSets.getKeywords(KeywordSets.Key.MACRO, language) );
null, null, definition, KeywordSets.getKeywords(KeywordSets.Key.EMPTY, language) );
throwEOF( node );
}
@ -1836,9 +1836,17 @@ public class Scanner implements IScanner {
* @param expression2
*/
private void handleCompletionOnExpression(String expression) throws EndOfFileException {
int completionPoint = expression.length();
int completionPoint = expression.length() + 2;
IASTCompletionNode.CompletionKind kind = IASTCompletionNode.CompletionKind.MACRO_REFERENCE;
String prefix = "";
if( ! expression.trim().equals(""))
{
IScanner subScanner = ParserFactory.createScanner( new StringReader(expression), SCRATCH, EMPTY_INFO, ParserMode.QUICK_PARSE, language, new NullSourceElementRequestor(), new NullLogService());
IToken lastToken = null;
while( true )
{
try
{
lastToken = subScanner.nextToken();
@ -1846,22 +1854,30 @@ public class Scanner implements IScanner {
catch( EndOfFileException eof )
{
// ok
break;
} catch (ScannerException e) {
handleInternalError();
break;
}
}
String prefix = "";
if( ( lastToken != null ))
{
if( ( lastToken.getType() == IToken.tIDENTIFIER )
&& ( lastToken.getEndOffset() == completionPoint ) )
{
prefix = lastToken.getImage();
else if( ( lastToken.getEndOffset() == completionPoint ) &&
( lastToken.getType() != IToken.tIDENTIFIER ) )
kind = IASTCompletionNode.CompletionKind.NO_SUCH_KIND;
}
}
IASTCompletionNode node = new ASTCompletionNode( IASTCompletionNode.CompletionKind.MACRO_REFERENCE,
null, null, prefix, KeywordSets.getKeywords(KeywordSets.Key.MACRO, language) );
IASTCompletionNode node = new ASTCompletionNode( kind,
null, null, prefix,
KeywordSets.getKeywords(((kind == IASTCompletionNode.CompletionKind.NO_SUCH_KIND )? KeywordSets.Key.EMPTY : KeywordSets.Key.MACRO), language) );
throwEOF( node );
}