[Rust] Flow graph API improvements

- Fixed some misc bugs
- Added real FlowGraphEdge type
- Added accessors for node edges
- Added interaction handler to the flow graph example to dump the flow graph to stdin
- Split out the flow graph API into smaller files

1 files changed, 86 insertions, 3 deletions

diff --git a/rust/examples/flowgraph.rs b/rust/examples/flowgraph.rs
index 6666b7fb..515d52fe 100644
--- a/rust/examples/flowgraph.rs
+++ b/rust/examples/flowgraph.rs
@@ -1,9 +1,82 @@
+use binaryninja::flowgraph::edge::EdgeStyle;
+use binaryninja::flowgraph::FlowGraphNode;
+use binaryninja::function::FunctionViewType;
+use binaryninja::interaction::form::Form;
+use binaryninja::interaction::handler::{
+    register_interaction_handler, InteractionHandler, InteractionHandlerTask,
+};
+use binaryninja::interaction::{MessageBoxButtonResult, MessageBoxButtonSet, MessageBoxIcon};
 use binaryninja::{
     binary_view::{BinaryView, BinaryViewExt},
     disassembly::{DisassemblyTextLine, InstructionTextToken, InstructionTextTokenKind},
-    flowgraph::{BranchType, EdgePenStyle, EdgeStyle, FlowGraph, FlowGraphNode, ThemeColor},
+    flowgraph::{BranchType, EdgePenStyle, FlowGraph, ThemeColor},
 };
 
+pub struct GraphPrinter;
+
+impl GraphPrinter {
+    pub fn print_graph(&self, _view: &BinaryView, graph: &FlowGraph) {
+        println!("Printing flow graph:");
+        for node in &graph.nodes() {
+            // Print all disassembly lines in the node
+            println!("Node @ {:?}:", node.position());
+            println!("------------------");
+            println!("Disassembly lines:");
+            for line in &node.lines() {
+                println!("  {}", line);
+            }
+
+            // Print outgoing edges
+            println!("Outgoing edges:");
+            for edge in &node.outgoing_edges() {
+                println!("  {:?} => {:?}", edge.branch_type, edge.target.position());
+            }
+            println!("------------------");
+        }
+    }
+}
+
+impl InteractionHandler for GraphPrinter {
+    fn show_message_box(
+        &mut self,
+        _title: &str,
+        _text: &str,
+        _buttons: MessageBoxButtonSet,
+        _icon: MessageBoxIcon,
+    ) -> MessageBoxButtonResult {
+        MessageBoxButtonResult::CancelButton
+    }
+
+    fn open_url(&mut self, _url: &str) -> bool {
+        false
+    }
+
+    fn run_progress_dialog(
+        &mut self,
+        _title: &str,
+        _can_cancel: bool,
+        _task: &InteractionHandlerTask,
+    ) -> bool {
+        false
+    }
+
+    fn show_plain_text_report(&mut self, _view: &BinaryView, title: &str, contents: &str) {
+        println!("Plain text report");
+        println!("Title: {}", title);
+        println!("Contents: {}", contents);
+    }
+
+    fn show_graph_report(&mut self, view: &BinaryView, title: &str, graph: &FlowGraph) {
+        println!("Graph report");
+        println!("Title: {}", title);
+        self.print_graph(view, graph);
+    }
+
+    fn get_form_input(&mut self, _form: &mut Form) -> bool {
+        false
+    }
+}
+
 fn test_graph(view: &BinaryView) {
     let graph = FlowGraph::new();
 
@@ -15,8 +88,10 @@ fn test_graph(view: &BinaryView) {
 
     let node_a = FlowGraphNode::new(&graph);
     node_a.set_lines(disassembly_lines_a);
+    node_a.set_position(1337, 7331);
 
     let node_b = FlowGraphNode::new(&graph);
+    node_b.set_position(100, 200);
     let disassembly_lines_b = vec![DisassemblyTextLine::new(vec![
         InstructionTextToken::new("Li", InstructionTextTokenKind::Text),
         InstructionTextToken::new("ne", InstructionTextTokenKind::Text),
@@ -49,8 +124,16 @@ fn main() {
         .load("/bin/cat")
         .expect("Couldn't open `/bin/cat`");
 
-    // TODO: Register BNInteractionHandlerCallbacks with showGraphReport pointing at our function
-    // TODO: Idea: register showGraphReport that dumps a dotgraph to stdin
+    // Register the interaction handler so we can see the graph report headlessly.
+    register_interaction_handler(GraphPrinter);
 
     test_graph(&bv);
+
+    for func in bv.functions().iter().take(5) {
+        let graph = func.create_graph(FunctionViewType::MediumLevelIL, None);
+        assert!(!graph.nodes().is_empty());
+        let func_name = func.symbol().short_name();
+        let title = func_name.to_string_lossy();
+        bv.show_graph_report(&title, &graph);
+    }
 }