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fix NPE and ClassCastException encountered while parsing <list>

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fix bug in handling some template member templates
This commit is contained in:
Andrew Niefer 2004-04-09 20:58:13 +00:00
parent 32abdb30e8
commit daaf6bcf2b
6 changed files with 63 additions and 2 deletions
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3
core/org.eclipse.cdt.core.tests/ChangeLog
View file

@ -1,3 +1,6 @@
2004-04-09 Andrew Niefer
added parser/org/eclipse/cdt/core/parser/tests/CompleteParseASTTemplateTest.testTemplateMemberTemplateDefinition()
2004-04-09 Andrew Niefer
fixed bug https://bugs.eclipse.org/bugs/show_bug.cgi?id=57754
added parser/org/eclipse/cdt/core/parser/tests/CompleteParseASTTest.testBug57754()

20
core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/CompleteParseASTTemplateTest.java
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@ -735,4 +735,24 @@ public class CompleteParseASTTemplateTest extends CompleteParseBaseTest {
IASTTemplateDeclaration template = (IASTTemplateDeclaration) i.next();
IASTTemplateSpecialization spec = (IASTTemplateSpecialization) i.next();
}
public void testTemplateMemberTemplateDefinition() throws Exception
{
Writer writer = new StringWriter();
writer.write( "template< typename _Tp > ");
writer.write( "class list ");
writer.write( "{ ");
writer.write( " template<typename _S> void merge(list&, _S); ");
writer.write( "}; ");
writer.write( "template < typename _Tp > ");
writer.write( "template < typename _S > ");
writer.write( "void list<_Tp>::merge(list<_Tp>& __x, _S __comp) ");
writer.write( "{} ");
Iterator i = parse( writer.toString() ).getDeclarations();
IASTTemplateDeclaration template = (IASTTemplateDeclaration) i.next();
IASTTemplateDeclaration temp2 = (IASTTemplateDeclaration) i.next();
}
}

4
core/org.eclipse.cdt.core/parser/ChangeLog-parser
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@ -1,3 +1,7 @@
2004-04-09 Andrew Niefer
handle NPE during template argument deduction
fix bug in definitions of certain template member templates (fixes a ClassCastException encountered in <list>)
2004-04-09 Andrew Niefer
fixed https://bugs.eclipse.org/bugs/show_bug.cgi?id=57754
Fixed problems found after parsing iostream with discovered symbols, once 57754 was fixed:

28
core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/pst/TemplateEngine.java
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@ -443,6 +443,8 @@ public final class TemplateEngine {
if( p.isType( TypeInfo.t_type ) ){
symbol = p.getTypeSymbol();
ISymbol aSymbol = a.getTypeSymbol();
if( symbol == null || ( a.isType( TypeInfo.t_type) && aSymbol == null ) )
throw new ParserSymbolTableException( ParserSymbolTableException.r_BadTypeInfo );
if( symbol instanceof IDeferredTemplateInstance || symbol.isTemplateInstance() ){
return deduceFromTemplateTemplateArguments(map, symbol, aSymbol);
} else {
@ -1273,4 +1275,30 @@ public final class TemplateEngine {
}
return (ITemplateSymbol) symbol.getContainingSymbol();
}
/**
* @param instance
* @param instance2
* @return
*/
protected static boolean deferedInstancesAreEquivalent(IDeferredTemplateInstance instance, IDeferredTemplateInstance instance2) {
if( instance.getTemplate() != instance2.getTemplate() )
return false;
List args = instance.getArguments();
List args2 = instance2.getArguments();
if( args.size() != args2.size() )
return false;
Iterator iter1 = args.iterator(), iter2 = args2.iterator();
while( iter1.hasNext() ){
TypeInfo info1 = (TypeInfo) iter1.next();
TypeInfo info2 = (TypeInfo) iter2.next();
if( ! info1.equals( info2 ) )
return false;
}
return true;
}
}

1
core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/pst/TemplateFactory.java
View file

@ -18,6 +18,7 @@ import java.util.ListIterator;
import java.util.Map;
import org.eclipse.cdt.core.parser.ast.ASTAccessVisibility;
import org.eclipse.cdt.core.parser.ast.IASTScope;
import org.eclipse.cdt.internal.core.parser.ast.complete.ASTTemplateDeclaration;
import org.eclipse.cdt.internal.core.parser.ast.complete.ASTTemplateInstantiation;
import org.eclipse.cdt.internal.core.parser.pst.TypeInfo.PtrOp;

7
core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/pst/TypeInfo.java
View file

@ -492,9 +492,14 @@ public class TypeInfo {
else
result &= (f1.getReturnType() == f2.getReturnType());
} else if( _typeDeclaration.isType( TypeInfo.t_templateParameter ) &&
type._typeDeclaration.isType( TypeInfo.t_templateParameter ) ){
type._typeDeclaration.isType( TypeInfo.t_templateParameter ) )
{
//template parameters
result &= TemplateEngine.templateParametersAreEquivalent( _typeDeclaration, type._typeDeclaration );
} else if ( _typeDeclaration instanceof IDeferredTemplateInstance &&
type._typeDeclaration instanceof IDeferredTemplateInstance )
{
result &= TemplateEngine.deferedInstancesAreEquivalent( (IDeferredTemplateInstance) _typeDeclaration, (IDeferredTemplateInstance)type._typeDeclaration );
}else {
//otherwise, its a user defined type, need the decls the same
result &= ( _typeDeclaration == type._typeDeclaration );