daily update on 20240202 by nitload youmu, keep on writing xpree[D[D[D[D[De[C[C[Css compiler

2025-02-02 23:59:05 +08:00
parent e687473132
commit 4ee675669f
483 changed files with 86314 additions and 2712 deletions
@@ -0,0 +1,86 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace StgSharp.Script.Express
+{
+    public class ExpSwitchToken : ExpToken
+    {
+        private ExpToken _target;
+        private List<ExpToken> _default;
+        private Dictionary<ExpToken, List<ExpToken>> _cases;
+
+        public List<ExpToken> this[ExpToken index]
+        {
+            get
+            {
+                if (_cases.TryGetValue(index, out var ret))
+                {
+                    return ret;
+                }
+                return _default;
+            }
+        }
+
+        public ExpSwitchToken(string name, ExpSchema context,
+            ExpToken target, IEnumerable<ExpToken> @default ,
+            params (ExpToken label, IEnumerable<ExpToken> op)[] cases
+            ) : base(name, context)
+        {
+            _target = target;
+            if (@default == null)
+            {
+                _default = new List<ExpToken>();
+            }
+            else
+            {
+                _default = new List<ExpToken>(@default);
+            }
+            _cases = new Dictionary<ExpToken, List<ExpToken>>();
+            foreach (var item in cases)
+            {
+                if (item.op == null)
+                {
+                    _cases.Add(item.label, new List<ExpToken>());
+                }
+                else
+                {
+                    _cases.Add(item.label, new List<ExpToken>(item.op));
+                }
+            }
+        }
+
+        public bool ContainsCase(ExpToken token)
+        {
+            return _cases.ContainsKey(token);
+        }
+
+        /// <summary>
+        /// Adds an expression to certain <see langword="case"/>.
+        /// The added expression will be run at last.
+        /// </summary>
+        /// <param name="label">Label of case to add operation</param>
+        /// <param name="expressionRoot">Root token of the expression to be added.</param>
+        /// <exception cref="ExpCaseNotFoundException">Cannot fine the case label in current witch expression.</exception>
+        public void AddOperationToCase(ExpToken label, ExpToken expressionRoot)
+        {
+            AssertSchemaInclude(expressionRoot);
+            if (_cases.TryGetValue(label,out var op))
+            {
+                op.Add(expressionRoot);
+            }
+            else
+            {
+                throw new ExpCaseNotFoundException(this, label);
+            }
+        }
+
+        public void AddOperationToDefault(ExpToken expressionRoot)
+        {
+            if (expressionRoot != null)
+            {
+                _default.Add(expressionRoot);
+            }
+        }
+    }
+}