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Code Issues Wiki Activity

fix expansion of macros used as parameters to function-like macros

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This commit is contained in:
Andrew Niefer 2004-10-21 21:25:41 +00:00
parent 4761007499
commit ee74068fe8
2 changed files with 33 additions and 2 deletions
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31
core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/scanner2/Scanner2Test.java
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@ -2191,4 +2191,35 @@ public class Scanner2Test extends BaseScanner2Test
validateEOF();
}
public void testMacroArgumentExpansion() throws Exception {
Writer writer = new StringWriter();
writer.write( "#define g_return( expr ) ( expr ) \n" ); //$NON-NLS-1$
writer.write( "#define ETH( obj ) ( CHECK( (obj), boo ) ) \n" ); //$NON-NLS-1$
writer.write( "#define CHECK CHECK_INSTANCE \n" ); //$NON-NLS-1$
writer.write( "#define CHECK_INSTANCE( instance, type ) (foo((instance), (type))) \n" ); //$NON-NLS-1$
writer.write( "g_return( ETH(ooga) ) \n" ); //$NON-NLS-1$
initializeScanner( writer.toString() );
validateToken( IToken.tLPAREN );
validateToken( IToken.tLPAREN );
validateToken( IToken.tLPAREN );
validateIdentifier( "foo" ); //$NON-NLS-1$
validateToken( IToken.tLPAREN );
validateToken( IToken.tLPAREN );
validateToken( IToken.tLPAREN );
validateIdentifier( "ooga" ); //$NON-NLS-1$
validateToken( IToken.tRPAREN );
validateToken( IToken.tRPAREN );
validateToken( IToken.tCOMMA );
validateToken( IToken.tLPAREN );
validateIdentifier( "boo" ); //$NON-NLS-1$
validateToken( IToken.tRPAREN );
validateToken( IToken.tRPAREN );
validateToken( IToken.tRPAREN );
validateToken( IToken.tRPAREN );
validateToken( IToken.tRPAREN );
}
}

4
core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/scanner2/Scanner2.java
View file

@ -2641,10 +2641,10 @@ public class Scanner2 implements IScanner, IScannerData {
char [] expansion = null;
if( expObject instanceof FunctionStyleMacro ){
FunctionStyleMacro expMacro = (FunctionStyleMacro) expObject;
pushContext( ( start == 0 ) ? arg : CharArrayUtils.extract( arg, start, arg.length - start + 1 ) );
pushContext( ( start == 0 ) ? arg : CharArrayUtils.extract( arg, start, arg.length - start ) );
bufferPos[bufferStackPos] += end - start + 1;
expansion = handleFunctionStyleMacro( expMacro, false );
end = bufferPos[bufferStackPos];
end = bufferPos[bufferStackPos] + start;
popContext();
} else if (expObject instanceof ObjectStyleMacro) {
ObjectStyleMacro expMacro = (ObjectStyleMacro)expObject;