1 files changed, 108 insertions, 0 deletions
diff --git a/rust/src/low_level_il/block.rs b/rust/src/low_level_il/block.rs
new file mode 100644
index 00000000..8096c1aa
--- /dev/null
+++ b/rust/src/low_level_il/block.rs
@@ -0,0 +1,108 @@
+// Copyright 2021-2024 Vector 35 Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use std::fmt::Debug;
+use std::ops::Range;
+
+use crate::architecture::Architecture;
+use crate::basic_block::{BasicBlock, BlockContext};
+
+use super::*;
+
+#[derive(Copy)]
+pub struct LowLevelILBlock<'func, A, M, F>
+where
+    A: 'func + Architecture,
+    M: FunctionMutability,
+    F: FunctionForm,
+{
+    pub(crate) function: &'func LowLevelILFunction<A, M, F>,
+}
+
+impl<'func, A, M, F> BlockContext for LowLevelILBlock<'func, A, M, F>
+where
+    A: 'func + Architecture,
+    M: FunctionMutability,
+    F: FunctionForm,
+{
+    type Instruction = LowLevelILInstruction<'func, A, M, F>;
+    type InstructionIndex = LowLevelInstructionIndex;
+    type Iter = LowLevelILBlockIter<'func, A, M, F>;
+
+    fn start(&self, block: &BasicBlock<Self>) -> LowLevelILInstruction<'func, A, M, F> {
+        self.function
+            .instruction_from_index(block.start_index())
+            .unwrap()
+    }
+
+    fn iter(&self, block: &BasicBlock<Self>) -> LowLevelILBlockIter<'func, A, M, F> {
+        LowLevelILBlockIter {
+            function: self.function,
+            range: (block.start_index().0)..(block.end_index().0),
+        }
+    }
+}
+
+impl<'func, A, M, F> Debug for LowLevelILBlock<'func, A, M, F>
+where
+    A: 'func + Architecture + Debug,
+    M: FunctionMutability,
+    F: FunctionForm,
+{
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        f.debug_struct("LowLevelILBlock")
+            .field("function", &self.function)
+            .finish()
+    }
+}
+
+impl<'func, A, M, F> Clone for LowLevelILBlock<'func, A, M, F>
+where
+    A: 'func + Architecture,
+    M: FunctionMutability,
+    F: FunctionForm,
+{
+    fn clone(&self) -> Self {
+        LowLevelILBlock {
+            function: self.function,
+        }
+    }
+}
+
+pub struct LowLevelILBlockIter<'func, A, M, F>
+where
+    A: 'func + Architecture,
+    M: FunctionMutability,
+    F: FunctionForm,
+{
+    function: &'func LowLevelILFunction<A, M, F>,
+    // TODO: Once step_trait is stable we can do Range<InstructionIndex>
+    range: Range<usize>,
+}
+
+impl<'func, A, M, F> Iterator for LowLevelILBlockIter<'func, A, M, F>
+where
+    A: 'func + Architecture,
+    M: FunctionMutability,
+    F: FunctionForm,
+{
+    type Item = LowLevelILInstruction<'func, A, M, F>;
+
+    fn next(&mut self) -> Option<Self::Item> {
+        self.range
+            .next()
+            .map(LowLevelInstructionIndex)
+            .and_then(|idx| self.function.instruction_from_index(idx))
+    }
+}