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Code Issues Wiki Activity

fix bug 72537: [Parser] environment macros with pararmeters are not respected by the parser

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This commit is contained in:
Andrew Niefer 2004-09-23 17:22:24 +00:00
parent 1d222d0636
commit f6bae1949b
2 changed files with 82 additions and 40 deletions
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11
core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/scanner2/Scanner2Test.java
View file

@ -1859,4 +1859,15 @@ public class Scanner2Test extends BaseScanner2Test
validateToken( IToken.tSEMI );
validateEOF();
}
public void testBug72537() throws Exception
{
initializeScanner( "FOO BAR(boo)" ); //$NON-NLS-1$
scanner.addDefinition( "FOO".toCharArray(), "foo".toCharArray() ); //$NON-NLS-1$//$NON-NLS-2$
scanner.addDefinition( "BAR(x)".toCharArray(), "x".toCharArray() ); //$NON-NLS-1$//$NON-NLS-2$
validateIdentifier( "foo" ); //$NON-NLS-1$
validateIdentifier( "boo" ); //$NON-NLS-1$
validateEOF();
}
}

109
core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/scanner2/Scanner2.java
View file

@ -300,7 +300,24 @@ public class Scanner2 implements IScanner, IScannerData {
* @see org.eclipse.cdt.core.parser.IScanner#addDefinition(java.lang.String, java.lang.String)
*/
public void addDefinition(char[] key, char[] value) {
definitions.put(key, new ObjectStyleMacro(key, value ));
int idx = CharArrayUtils.indexOf( '(', key );
if( idx == -1 )
definitions.put(key, new ObjectStyleMacro(key, value ));
else {
pushContext( key );
bufferPos[ bufferStackPos ] = idx;
char[][] args = null;
try{
args = extractMacroParameters( 0, EMPTY_STRING_CHAR_ARRAY, false );
} finally{
popContext();
}
if( args != null ){
key = CharArrayUtils.extract( key, 0, idx );
definitions.put( key, new FunctionStyleMacro( key, value, args ) );
}
}
}
/* (non-Javadoc)
@ -1687,44 +1704,9 @@ public class Scanner2 implements IScanner, IScannerData {
int pos = bufferPos[bufferStackPos];
if (pos + 1 < limit && buffer[pos + 1] == '(') {
++bufferPos[bufferStackPos];
arglist = new char[4][];
int currarg = -1;
while (bufferPos[bufferStackPos] < limit) {
pos = bufferPos[bufferStackPos];
skipOverWhiteSpace();
if (++bufferPos[bufferStackPos] >= limit)
return;
c = buffer[bufferPos[bufferStackPos]];
if (c == ')') {
break;
} else if (c == ',') {
continue;
} else if (c == '.'
&& pos + 1 < limit && buffer[pos + 1] == '.'
&& pos + 2 < limit && buffer[pos + 2] == '.') {
// varargs
// TODO - something better
bufferPos[bufferStackPos] += 2;
arglist[++currarg] = "...".toCharArray(); //$NON-NLS-1$
continue;
} else if (!((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_' || Character.isUnicodeIdentifierPart(c))) {
handleProblem( IProblem.PREPROCESSOR_INVALID_MACRO_DEFN, idstart, name );
// yuck
skipToNewLine();
return;
}
int argstart = bufferPos[bufferStackPos];
skipOverIdentifier();
if (++currarg == arglist.length) {
char[][] oldarglist = arglist;
arglist = new char[oldarglist.length * 2][];
System.arraycopy(oldarglist, 0, arglist, 0, oldarglist.length);
}
int arglen = bufferPos[bufferStackPos] - argstart + 1;
char[] arg = new char[arglen];
System.arraycopy(buffer, argstart, arg, 0, arglen);
arglist[currarg] = arg;
}
arglist = extractMacroParameters( idstart, name, true );
if( arglist == null )
return;
}
// Capture the replacement text
@ -1790,7 +1772,56 @@ public class Scanner2 implements IScanner, IScannerData {
pushCallback( getASTFactory().createMacro( name, startingOffset, startingLineNumber, idstart, idstart + idlen, nameLine, textstart + textlen, endingLine, getCurrentFilename() ) );
}
private char[][] extractMacroParameters( int idstart, char[] name, boolean reportProblems ){
char[] buffer = bufferStack[bufferStackPos];
int limit = bufferLimit[bufferStackPos];
if( bufferPos[bufferStackPos] >= limit || buffer[bufferPos[bufferStackPos]] != '(' )
return null;
char c;
char[][] arglist = new char[4][];
int currarg = -1;
while (bufferPos[bufferStackPos] < limit) {
int pos = bufferPos[bufferStackPos];
skipOverWhiteSpace();
if (++bufferPos[bufferStackPos] >= limit)
return null;
c = buffer[bufferPos[bufferStackPos]];
if (c == ')') {
break;
} else if (c == ',') {
continue;
} else if (c == '.'
&& pos + 1 < limit && buffer[pos + 1] == '.'
&& pos + 2 < limit && buffer[pos + 2] == '.') {
// varargs
// TODO - something better
bufferPos[bufferStackPos] += 2;
arglist[++currarg] = "...".toCharArray(); //$NON-NLS-1$
continue;
} else if (!((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_' || Character.isUnicodeIdentifierPart(c))) {
if( reportProblems )
handleProblem( IProblem.PREPROCESSOR_INVALID_MACRO_DEFN, idstart, name );
// yuck
skipToNewLine();
return null;
}
int argstart = bufferPos[bufferStackPos];
skipOverIdentifier();
if (++currarg == arglist.length) {
char[][] oldarglist = arglist;
arglist = new char[oldarglist.length * 2][];
System.arraycopy(oldarglist, 0, arglist, 0, oldarglist.length);
}
int arglen = bufferPos[bufferStackPos] - argstart + 1;
char[] arg = new char[arglen];
System.arraycopy(buffer, argstart, arg, 0, arglen);
arglist[currarg] = arg;
}
return arglist;
}
/**
* @param text
* @return