1 files changed, 74 insertions, 0 deletions
diff --git a/antlr-3.4/runtime/ObjC/Framework/ANTLRRewriteRuleNodeStream.m b/antlr-3.4/runtime/ObjC/Framework/ANTLRRewriteRuleNodeStream.m
new file mode 100755
index 0000000..8dfedd7
--- /dev/null
+++ b/antlr-3.4/runtime/ObjC/Framework/ANTLRRewriteRuleNodeStream.m
@@ -0,0 +1,74 @@
+//
+//  ANTLRRewriteRuleNodeStream.m
+//  ANTLR
+//
+//  Created by Kay Röpke on 7/16/07.
+//  Copyright 2007 classDump. All rights reserved.
+//
+
+#import "ANTLRRewriteRuleNodeStream.h"
+#import "ANTLRRuntimeException.h"
+
+@implementation ANTLRRewriteRuleNodeStream
+
++ (ANTLRRewriteRuleNodeStream*) newANTLRRewriteRuleNodeStream:(id<ANTLRTreeAdaptor>)aTreeAdaptor description:(NSString *)anElementDescription;
+{
+    return [[ANTLRRewriteRuleNodeStream alloc] initWithTreeAdaptor:aTreeAdaptor description:anElementDescription];
+}
+
++ (ANTLRRewriteRuleNodeStream*) newANTLRRewriteRuleNodeStream:(id<ANTLRTreeAdaptor>)aTreeAdaptor description:(NSString *)anElementDescription element:(id)anElement;
+{
+    return [[ANTLRRewriteRuleNodeStream alloc] initWithTreeAdaptor:aTreeAdaptor description:anElementDescription element:anElement];
+}
+
++ (ANTLRRewriteRuleNodeStream*) newANTLRRewriteRuleNode:(id<ANTLRTreeAdaptor>)aTreeAdaptor description:(NSString *)anElementDescription elements:(NSArray *)theElements;
+{
+    return [[ANTLRRewriteRuleNodeStream alloc] initWithTreeAdaptor:aTreeAdaptor description:anElementDescription elements:theElements];
+}
+
+- (id) initWithTreeAdaptor:(id<ANTLRTreeAdaptor>)aTreeAdaptor description:(NSString *)anElementDescription
+{
+    if ((self = [super initWithTreeAdaptor:aTreeAdaptor description:anElementDescription]) != nil) {
+        dirty = NO;
+        isSingleElement = YES;
+    }
+    return self;
+}
+
+- (id) initWithTreeAdaptor:(id<ANTLRTreeAdaptor>)aTreeAdaptor description:(NSString *)anElementDescription element:(id)anElement
+{
+    if ((self = [super initWithTreeAdaptor:aTreeAdaptor description:anElementDescription element:anElement]) != nil) {
+        dirty = NO;
+    }
+    return self;
+}
+
+- (id) initWithTreeAdaptor:(id<ANTLRTreeAdaptor>)aTreeAdaptor description:(NSString *)anElementDescription elements:(NSArray *)theElements
+{
+    if ((self = [super init]) != nil) {
+        dirty = NO;
+    }
+    return self;
+}
+
+
+- (id) nextNode
+{
+    if (dirty || (cursor >= [self size] && [self size] == 1))
+        return [treeAdaptor dupNode:[self _next]];
+    else 
+        return [self _next];
+}
+
+- (id<ANTLRBaseTree>) toTree:(id<ANTLRBaseTree>)element
+{
+    return [treeAdaptor dupNode:element];
+}
+
+- (id) dup:(id)element
+{
+    return [treeAdaptor dupTree:element];
+    @throw [ANTLRRuntimeException newException:@"ANTLRUnsupportedOperationException" reason:@"dup can't be called for a node stream."];
+}
+
+@end