First public commit!

2017-08-18 03:07:43 -05:00
parent 2c754790e6
commit 5a8ddf6978
91 changed files with 17165 additions and 1 deletions
--- a/YATC/ASTNodes/LocalNode/ExpressionNode/AtomicNode/ExprSeqNode.cs
+++ b/YATC/ASTNodes/LocalNode/ExpressionNode/AtomicNode/ExprSeqNode.cs
@@ -0,0 +1,89 @@
+/*
+ *  Yet Another Tiger Compiler (YATC)
+ *
+ *  Copyright 2014 Damian Valdés Santiago, Juan Carlos Pujol Mainegra
+ *  
+ *  Permission is hereby granted, free of charge, to any person obtaining a copy
+ *  of this software and associated documentation files (the "Software"), to deal
+ *  in the Software without restriction, including without limitation the rights
+ *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *  copies of the Software, and to permit persons to whom the Software is
+ *  furnished to do so, subject to the following conditions:
+ *  
+ *  The above copyright notice and this permission notice shall be included in all
+ *  copies or substantial portions of the Software.
+ *  
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ *  SOFTWARE.  
+ *
+ */
+
+using Antlr.Runtime;
+using System.Linq;
+using System.Linq.Expressions;
+using System.Reflection.Emit;
+using YATC.Scope;
+
+namespace YATC.ASTNodes
+{
+    class ExprSeqNode : AtomicNode
+    {
+        public ExprSeqNode(IToken payload)
+            : base(payload)
+        {
+        }
+
+        /// <summary>
+        /// Says whether the node contains a BreakNode, that is not within the control of a cycle control structure.
+        /// </summary>
+        public bool HasBreakInside { get; internal set; }
+
+        public ExpressionNode[] ExpressionNodes
+        {
+            get { return TigerChildren.Length > 0 ? 
+                    TigerChildren.Cast<ExpressionNode>().ToArray() : null; }
+        }
+
+        public override void CheckSemantics(TigerScope scope, Report report)
+        {
+            if (this.ExpressionNodes == null)
+            {
+                this.TigerType = TigerType.Void;
+                return;
+            }
+
+            bool allOk = true;
+            foreach (var expressionNode in this.ExpressionNodes)
+            {
+                expressionNode.CheckSemantics(scope, report);
+                if (!expressionNode.IsOk)
+                    allOk = false;
+            }
+
+            this.TigerType = allOk
+                      ? ((this.HasBreakInside || ExpressionNodes.Length == 0)
+                             ? TigerType.Void
+                             : ExpressionNodes[ExpressionNodes.Length - 1].TigerType)
+                      : TigerType.Error;
+        }
+
+        internal override void GenerateCode(ModuleBuilder moduleBuilder)
+        {
+            if (this.ExpressionNodes != null)
+            {
+                foreach (var expressionNode in this.ExpressionNodes)
+                    expressionNode.GenerateCode(moduleBuilder);
+
+                this.VmExpression = Expression.Block(new ParameterExpression[] { },
+                                                     this.ExpressionNodes.Select(x => x.VmExpression ?? Expression.Empty()));
+            }
+            else
+                this.VmExpression = Expression.Empty();
+        }
+    }
+}