port from perforce

intromat/Intromat/Model/InlineVariableDefinition.cs

@@ -0,0 +1,25 @@
+using System.Diagnostics;
+using System.Text;
+using Intromat.Model.Compiler;
+
+namespace Intromat.Model
+{
+    public class InlineVariableDefinition<T> : ITypedVariableDefinition<T>
+    {
+        public ITypedExpression<T>? Value { get; set; }
+        public string? VariableName { get; private set; }
+
+        public void Compile(CompilerContext context, StringBuilder sb)
+        {
+            VariableName = context.FindFreeVariableName();
+            context.AddVariableToCurrentScope(this);
+            sb.Append($"{VariableName} = ");
+            Debug.Assert(Value != null, nameof(Value) + " != null");
+            Value.Compile(context, sb);
+        }
+
+        public void CompileHeader(CompilerContext context, StringBuilder sb)
+        {
+        }
+    }
+}