From 0810971f3e6b5ac0d9882b4cd2a7f43cece78c2e Mon Sep 17 00:00:00 2001
From: Max Brunsfeld <maxbrunsfeld@gmail.com>
Date: Thu, 8 Mar 2018 12:53:28 -0800
Subject: [PATCH] :fire: symbol iterator API

This idea was never fully baked.
---
 include/tree_sitter/runtime.h |  8 --------
 src/runtime/node.c            | 20 --------------------
 test/runtime/node_test.cc     | 26 --------------------------
 3 files changed, 54 deletions(-)

diff --git a/include/tree_sitter/runtime.h b/include/tree_sitter/runtime.h
index 3bd24bac..3ed22c3e 100644
--- a/include/tree_sitter/runtime.h
+++ b/include/tree_sitter/runtime.h
@@ -67,19 +67,11 @@ typedef struct {
   uint32_t offset[2];
 } TSNode;
 
-typedef struct {
-  TSSymbol value;
-  bool done;
-  void *data;
-} TSSymbolIterator;
-
 uint32_t ts_node_start_byte(TSNode);
 TSPoint ts_node_start_point(TSNode);
 uint32_t ts_node_end_byte(TSNode);
 TSPoint ts_node_end_point(TSNode);
 TSSymbol ts_node_symbol(TSNode);
-TSSymbolIterator ts_node_symbols(TSNode);
-void ts_symbol_iterator_next(TSSymbolIterator *);
 const char *ts_node_type(TSNode, const TSDocument *);
 char *ts_node_string(TSNode, const TSDocument *);
 bool ts_node_eq(TSNode, TSNode);
diff --git a/src/runtime/node.c b/src/runtime/node.c
index e4353e5b..1f7487cb 100644
--- a/src/runtime/node.c
+++ b/src/runtime/node.c
@@ -263,26 +263,6 @@ TSSymbol ts_node_symbol(TSNode self) {
   return tree->context.alias_symbol ? tree->context.alias_symbol : tree->symbol;
 }
 
-TSSymbolIterator ts_node_symbols(TSNode self) {
-  const Tree *tree = ts_node__tree(self);
-  return (TSSymbolIterator){
-    .value = tree->symbol, .done = false, .data = (void *)tree,
-  };
-}
-
-void ts_symbol_iterator_next(TSSymbolIterator *self) {
-  const Tree *tree = (const Tree *)self->data;
-  const Tree *parent = tree->context.parent;
-  if (!self->done && parent) {
-    if (parent->child_count == 1 && !parent->visible) {
-      self->value = parent->symbol;
-      self->data = (void *)parent;
-      return;
-    }
-  }
-  self->done = true;
-}
-
 const char *ts_node_type(TSNode self, const TSDocument *document) {
   return ts_language_symbol_name(document->parser.language, ts_node_symbol(self));
 }
diff --git a/test/runtime/node_test.cc b/test/runtime/node_test.cc
index bb620244..ff12169f 100644
--- a/test/runtime/node_test.cc
+++ b/test/runtime/node_test.cc
@@ -255,32 +255,6 @@ describe("Node", [&]() {
     });
   });
 
-  describe("symbols()", [&]() {
-    it("returns an iterator that yields each of the node's symbols", [&]() {
-      const TSLanguage *language = ts_document_language(document);
-
-      TSNode false_node = ts_node_descendant_for_byte_range(root_node, false_index, false_index + 1);
-      TSSymbolIterator iterator = ts_node_symbols(false_node);
-      AssertThat(iterator.done, Equals(false));
-      AssertThat(ts_language_symbol_name(language, iterator.value), Equals("false"));
-
-      ts_symbol_iterator_next(&iterator);
-      AssertThat(iterator.done, Equals(false));
-      AssertThat(ts_language_symbol_name(language, iterator.value), Equals("_value"));
-
-      ts_symbol_iterator_next(&iterator);
-      AssertThat(iterator.done, Equals(true));
-
-      TSNode comma_node = ts_node_descendant_for_byte_range(root_node, number_end_index, number_end_index);
-      iterator = ts_node_symbols(comma_node);
-      AssertThat(iterator.done, Equals(false));
-      AssertThat(ts_language_symbol_name(language, iterator.value), Equals(","));
-
-      ts_symbol_iterator_next(&iterator);
-      AssertThat(iterator.done, Equals(true));
-    });
-  });
-
   describe("child_count(), child(i)", [&]() {
     it("returns the child node at the given index, including anonymous nodes", [&]() {
       AssertThat(ts_node_child_count(root_node), Equals<size_t>(7));