1 /*
   2  * Copyright (c) 2008, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.scenario.effect.compiler.parser;
  27 
  28 import com.sun.scenario.effect.compiler.JSLParser;
  29 import com.sun.scenario.effect.compiler.model.Qualifier;
  30 import com.sun.scenario.effect.compiler.model.SymbolTable;
  31 import com.sun.scenario.effect.compiler.model.Type;
  32 import com.sun.scenario.effect.compiler.tree.BinaryExpr;
  33 import org.antlr.runtime.RecognitionException;
  34 import org.junit.Test;
  35 
  36 public class AssignmentExprTest extends ParserBase {
  37 
  38     @Test
  39     public void userVar() throws Exception {
  40         BinaryExpr tree = parseTreeFor("foo = 32.0");
  41     }
  42 
  43     @Test(expected = RuntimeException.class)
  44     public void userROVar() throws Exception {
  45         BinaryExpr tree = parseTreeFor("readonly = 32.0");
  46     }
  47 
  48     @Test
  49     public void coreVar() throws Exception {
  50         BinaryExpr tree = parseTreeFor("color = float4(1.0)");
  51     }
  52 
  53     @Test
  54     public void coreVarField() throws Exception {
  55         BinaryExpr tree = parseTreeFor("color.r = 3.0");
  56     }
  57 
  58     @Test(expected = RuntimeException.class)
  59     public void coreROVar() throws Exception {
  60         BinaryExpr tree = parseTreeFor("pos0 = float2(1.0)");
  61     }
  62 
  63     @Test(expected = RuntimeException.class)
  64     public void coreROVarField() throws Exception {
  65         BinaryExpr tree = parseTreeFor("pos0.x = 1.0");
  66     }
  67 
  68     @Test(expected = RecognitionException.class)
  69     public void notAnAssignment() throws Exception {
  70         parseTreeFor("const foo");
  71     }
  72 
  73     private BinaryExpr parseTreeFor(String text) throws RecognitionException {
  74         JSLParser parser = parserOver(text);
  75         SymbolTable st = parser.getSymbolTable();
  76         st.declareVariable("foo", Type.FLOAT, null);
  77         st.declareVariable("readonly", Type.FLOAT, Qualifier.CONST);
  78         // trick test into thinking main() function is currently in
  79         // scope so that we can test core variables such as color and pos0
  80         st.enterFrame();
  81         st.declareFunction("main", Type.VOID, null);
  82         return (BinaryExpr)parser.assignment_expression();
  83     }
  84 }