Enjoy 3.2 release ^_^

src/main/java/com/jfinal/template/stat/ast/Set.java

@@ -0,0 +1,59 @@
+/**
+ * Copyright (c) 2011-2017, James Zhan 詹波 (jfinal@126.com).
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.jfinal.template.stat.ast;
+
+import java.io.Writer;
+import com.jfinal.template.Env;
+import com.jfinal.template.expr.ast.Assign;
+import com.jfinal.template.expr.ast.Expr;
+import com.jfinal.template.expr.ast.ExprList;
+import com.jfinal.template.stat.Location;
+import com.jfinal.template.stat.ParseException;
+import com.jfinal.template.stat.Scope;
+
+/**
+ * Set 赋值，从内向外作用域查找变量，找到则替换变量值，否则在顶层作用域赋值
+ * 
+ * 用法：
+ * 1：#set(k = v)
+ * 2：#set(k1 = v1, k2 = v2, ..., kn = vn)
+ * 3：#set(x = 1+2)
+ * 4：#set(x = 1+2, y = 3>4, ..., z = c ? a : b)
+ */
+public class Set extends Stat {
+	
+	private ExprList exprList;
+	
+	public Set(ExprList exprList, Location location) {
+		if (exprList.length() == 0) {
+			throw new ParseException("The parameter of #set directive can not be blank", location);
+		}
+		
+		for (Expr expr : exprList.getExprArray()) {
+			if ( !(expr instanceof Assign) ) {
+				throw new ParseException("#set directive only supports assignment expressions", location);
+			}
+		}
+		this.exprList = exprList;
+	}
+	
+	public void exec(Env env, Scope scope, Writer writer) {
+		scope.getCtrl().setWisdomAssignment();
+		exprList.eval(scope);
+	}
+}
+