Implement If blocks in scripts

2026-07-27 13:11:59 -07:00 · 2025-07-18 14:04:06 -05:00
parent 15b050a343
commit 044615088d
6 changed files with 199 additions and 24 deletions
@@ -0,0 +1,50 @@
+using Microsoft.CodeAnalysis.CSharp;
+using Microsoft.CodeAnalysis.CSharp.Syntax;
+using System.Collections.Generic;
+
+using static Microsoft.CodeAnalysis.CSharp.SyntaxFactory;
+
+namespace Microsoft.Iris.DecompXml;
+
+internal class CodeBlockInfo
+{
+    public CodeBlockInfo(uint startOffset, uint endOffset, SyntaxKind kind, ExpressionSyntax expression = null)
+    {
+        StartOffset = startOffset;
+        EndOffset = endOffset;
+        Kind = kind;
+        Expression = expression;
+    }
+
+    public uint StartOffset { get; init; }
+
+    public uint EndOffset { get; init; }
+
+    public SyntaxKind Kind { get; init; }
+
+    public ExpressionSyntax Expression { get; init; }
+
+    public List<StatementSyntax> Statements { get; } = [];
+
+    public void FinalizeBlock(CodeBlockInfo parentBlock)
+    {
+        var blockBody = Block(Statements);
+
+        switch (Kind)
+        {
+            case SyntaxKind.IfStatement:
+                var ifStatement = IfStatement(Expression, blockBody);
+                parentBlock.Statements.Add(ifStatement);
+                break;
+
+            case SyntaxKind.ElseClause:
+                var elseClause = ElseClause(blockBody);
+                var ifElseBlock = (IfStatementSyntax)parentBlock.Statements[^1];
+                parentBlock.Statements[^1] = ifElseBlock.WithElse(elseClause);
+                break;
+
+            default:
+                throw new System.NotImplementedException($"Unrecognized code block kind '{Kind}'");
+        }
+    }
+}