refactor(cfg): move block data types to separate file (#6319)

Pure refactor. No logic has been changed.

crates/oxc_cfg/src/block.rs

@@ -0,0 +1,62 @@
+use oxc_syntax::node::NodeId;
+use petgraph::stable_graph::NodeIndex;
+
+pub type BasicBlockId = NodeIndex;
+
+#[derive(Debug)]
+pub struct BasicBlock {
+    pub instructions: Vec<Instruction>,
+    pub unreachable: bool,
+}
+
+impl BasicBlock {
+    pub(crate) fn new() -> Self {
+        BasicBlock { instructions: Vec::new(), unreachable: false }
+    }
+
+    pub fn instructions(&self) -> &Vec<Instruction> {
+        &self.instructions
+    }
+}
+
+#[derive(Debug, Clone)]
+pub struct Instruction {
+    pub kind: InstructionKind,
+    pub node_id: Option<NodeId>,
+}
+
+impl Instruction {
+    pub fn new(kind: InstructionKind, node_id: Option<NodeId>) -> Self {
+        Self { kind, node_id }
+    }
+}
+
+#[derive(Debug, Clone)]
+pub enum InstructionKind {
+    Unreachable,
+    Statement,
+    Return(ReturnInstructionKind),
+    Break(LabeledInstruction),
+    Continue(LabeledInstruction),
+    Throw,
+    Condition,
+    Iteration(IterationInstructionKind),
+}
+
+#[derive(Debug, Clone)]
+pub enum ReturnInstructionKind {
+    ImplicitUndefined,
+    NotImplicitUndefined,
+}
+
+#[derive(Debug, Clone)]
+pub enum LabeledInstruction {
+    Labeled,
+    Unlabeled,
+}
+
+#[derive(Debug, Clone)]
+pub enum IterationInstructionKind {
+    Of,
+    In,
+}

crates/oxc_cfg/src/lib.rs

@@ -1,11 +1,10 @@
+mod block;
 mod builder;
 pub mod dot;
 pub mod visit;
 
 use itertools::Itertools;
-use oxc_syntax::node::NodeId;
 use petgraph::{
-    stable_graph::NodeIndex,
     visit::{Control, DfsEvent, EdgeRef},
     Direction, Graph,
 };
@@ -19,69 +18,11 @@ pub mod graph {
     }
 }
 
+pub use block::*;
 pub use builder::{ControlFlowGraphBuilder, CtxCursor, CtxFlags};
 pub use dot::DisplayDot;
 use visit::set_depth_first_search;
 
-pub type BasicBlockId = NodeIndex;
-
-#[derive(Debug)]
-pub struct BasicBlock {
-    pub instructions: Vec<Instruction>,
-    pub unreachable: bool,
-}
-
-impl BasicBlock {
-    fn new() -> Self {
-        BasicBlock { instructions: Vec::new(), unreachable: false }
-    }
-
-    pub fn instructions(&self) -> &Vec<Instruction> {
-        &self.instructions
-    }
-}
-
-#[derive(Debug, Clone)]
-pub struct Instruction {
-    pub kind: InstructionKind,
-    pub node_id: Option<NodeId>,
-}
-
-impl Instruction {
-    pub fn new(kind: InstructionKind, node_id: Option<NodeId>) -> Self {
-        Self { kind, node_id }
-    }
-}
-
-#[derive(Debug, Clone)]
-pub enum InstructionKind {
-    Unreachable,
-    Statement,
-    Return(ReturnInstructionKind),
-    Break(LabeledInstruction),
-    Continue(LabeledInstruction),
-    Throw,
-    Condition,
-    Iteration(IterationInstructionKind),
-}
-#[derive(Debug, Clone)]
-pub enum ReturnInstructionKind {
-    ImplicitUndefined,
-    NotImplicitUndefined,
-}
-
-#[derive(Debug, Clone)]
-pub enum LabeledInstruction {
-    Labeled,
-    Unlabeled,
-}
-
-#[derive(Debug, Clone)]
-pub enum IterationInstructionKind {
-    Of,
-    In,
-}
-
 #[derive(Debug, Clone)]
 pub enum EdgeType {
     /// Conditional jumps