part #2

src/BinaryIndex/__Libraries/StellaOps.BinaryIndex.Decompiler/AstNode.cs

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+// Copyright (c) StellaOps. All rights reserved.
+// Licensed under BUSL-1.1. See LICENSE in the project root.
+using System.Collections.Immutable;
+
+namespace StellaOps.BinaryIndex.Decompiler;
+
+/// <summary>
+/// Abstract syntax tree node.
+/// </summary>
+public abstract record AstNode(
+    AstNodeType Type,
+    ImmutableArray<AstNode> Children,
+    SourceLocation? Location);
+
+/// <summary>
+/// Types of AST nodes.
+/// </summary>
+public enum AstNodeType
+{
+    // Structure
+    Function,
+    Block,
+    Parameter,
+
+    // Control flow
+    If,
+    While,
+    For,
+    DoWhile,
+    Switch,
+    Case,
+    Default,
+    Return,
+    Break,
+    Continue,
+    Goto,
+    Label,
+
+    // Expressions
+    Assignment,
+    BinaryOp,
+    UnaryOp,
+    TernaryOp,
+    Call,
+    Cast,
+    Sizeof,
+
+    // Operands
+    Variable,
+    Constant,
+    StringLiteral,
+    ArrayAccess,
+    FieldAccess,
+    PointerDeref,
+    AddressOf,
+
+    // Declarations
+    VariableDecl,
+    TypeDef
+}