Attachment #112592 for bug #204435

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    <!-- ACTUAL CHANGES BEGIN HERE: -->

    <changes>
        <change id="TreeUtilities-isCompileTimeConstantExpression">
             <api name="general"/>
             <summary>Added <code>TreeUtilities.isCompileTimeConstantExpression</code>.</summary>
             <version major="0" minor="91"/>
             <date day="7" month="11" year="2011"/>
             <author login="jlahoda"/>
            <compatibility addition="yes" binary="compatible" deletion="no" deprecation="no" modification="no" semantic="compatible" source="compatible"/>
             <description>
                 Added <code>TreeUtilities.isCompileTimeConstantExpression</code> that tests whether the given expression is a compile-time constant.
             </description>
             <issue number="204435"/>
        </change>
        <change id="CompilationInfo-cache">
             <api name="general"/>
             <summary>Added <code>CompilationInfo.getCachedValue</code>, <code>CompilationInfo.putCachedValue</code> and <code>CompilationInfo.CacheClearPolicy</code>.</summary>

Lines 46-52 Link Here

(-)a/java.source/nbproject/project.properties (-1 / +1 lines)
46	javadoc.title=Java Source	46	javadoc.title=Java Source
47	javadoc.arch=${basedir}/arch.xml	47	javadoc.arch=${basedir}/arch.xml
48	javadoc.apichanges=${basedir}/apichanges.xml	48	javadoc.apichanges=${basedir}/apichanges.xml
49	spec.version.base=0.90.0	49	spec.version.base=0.91.0
50	test.qa-functional.cp.extra=${refactoring.java.dir}/modules/ext/javac-api-nb-7.0-b07.jar	50	test.qa-functional.cp.extra=${refactoring.java.dir}/modules/ext/javac-api-nb-7.0-b07.jar
51	test.unit.run.cp.extra=${o.n.core.dir}/core/core.jar:\	51	test.unit.run.cp.extra=${o.n.core.dir}/core/core.jar:\
52	${o.n.core.dir}/lib/boot.jar:\	52	${o.n.core.dir}/lib/boot.jar:\




            return list.size();
        }
    }

    /**Checks whether the given expression is a compile-time constant, as per JLS 15.28.
     * 
     * @param expression the expression to check
     * @return true if and only if the given expression represents a compile-time constant value
     * @since 0.91
     */
    public boolean isCompileTimeConstantExpression(TreePath expression) {
        Scope s = info.getTrees().getScope(expression);
        TypeMirror attributeTree = attributeTree(expression.getLeaf(), s);
        Type attributeTreeImpl = (Type) attributeTree;

        return attributeTreeImpl != null && attributeTreeImpl.constValue() != null;
    }
}




 */
package org.netbeans.api.java.source;

import com.sun.source.tree.AssignmentTree;
import com.sun.source.tree.BlockTree;
import com.sun.source.tree.ClassTree;
import com.sun.source.tree.LiteralTree;

import com.sun.source.tree.Tree.Kind;
import com.sun.source.tree.VariableTree;
import com.sun.source.util.TreePath;
import com.sun.source.util.TreePathScanner;
import java.io.File;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;


        assertFalse(info.getTreeUtilities().isStaticContext(s));
    }

    public void testIsCompileTimeConstant() throws Exception {
        prepareTest("Test", "package test; public class Test { private void m(String str) { int i; i = 1 + 1; i = str.length(); } }");

        final List<Boolean> result = new ArrayList<Boolean>();

        new TreePathScanner<Void, Void>() {
            @Override public Void visitAssignment(AssignmentTree node, Void p) {
                result.add(info.getTreeUtilities().isCompileTimeConstantExpression(new TreePath(getCurrentPath(), node.getExpression())));
                return super.visitAssignment(node, p);
            }
        }.scan(info.getCompilationUnit(), null);

        assertEquals(Arrays.asList(true, false), result);
    }
}

Return to bug 204435

Lines 1148-1151 Link Here

(-)a/java.source/src/org/netbeans/api/java/source/TreeUtilities.java (+14 lines)
1148	return list.size();	1148	return list.size();
1149	}	1149	}
1150	}	1150	}
		1151
		1152	/**Checks whether the given expression is a compile-time constant, as per JLS 15.28.
		1153	*
		1154	* @param expression the expression to check
		1155	* @return true if and only if the given expression represents a compile-time constant value
		1156	* @since 0.91
		1157	*/
		1158	public boolean isCompileTimeConstantExpression(TreePath expression) {
		1159	Scope s = info.getTrees().getScope(expression);
		1160	TypeMirror attributeTree = attributeTree(expression.getLeaf(), s);
		1161	Type attributeTreeImpl = (Type) attributeTree;
		1162
		1163	return attributeTreeImpl != null && attributeTreeImpl.constValue() != null;
		1164	}
1151	}	1165	}

Lines 108-113 Link Here

(-)a/java.source/apichanges.xml (+12 lines)
108	<!-- ACTUAL CHANGES BEGIN HERE: -->	108	<!-- ACTUAL CHANGES BEGIN HERE: -->
109		109
110	<changes>	110	<changes>
		111	<change id="TreeUtilities-isCompileTimeConstantExpression">
		112	<api name="general"/>
		113	<summary>Added <code>TreeUtilities.isCompileTimeConstantExpression</code>.</summary>
		114	<version major="0" minor="91"/>
		115	<date day="7" month="11" year="2011"/>
		116	<author login="jlahoda"/>
		117	<compatibility addition="yes" binary="compatible" deletion="no" deprecation="no" modification="no" semantic="compatible" source="compatible"/>
		118	<description>
		119	Added <code>TreeUtilities.isCompileTimeConstantExpression</code> that tests whether the given expression is a compile-time constant.
		120	</description>
		121	<issue number="204435"/>
		122	</change>
111	<change id="CompilationInfo-cache">	123	<change id="CompilationInfo-cache">
112	<api name="general"/>	124	<api name="general"/>
113	<summary>Added <code>CompilationInfo.getCachedValue</code>, <code>CompilationInfo.putCachedValue</code> and <code>CompilationInfo.CacheClearPolicy</code>.</summary>	125	<summary>Added <code>CompilationInfo.getCachedValue</code>, <code>CompilationInfo.putCachedValue</code> and <code>CompilationInfo.CacheClearPolicy</code>.</summary>

Lines 43-48 Link Here

(-)a/java.source/test/unit/src/org/netbeans/api/java/source/TreeUtilitiesTest.java (+18 lines)
43	*/	43	*/
44	package org.netbeans.api.java.source;	44	package org.netbeans.api.java.source;
45		45
		46	import com.sun.source.tree.AssignmentTree;
46	import com.sun.source.tree.BlockTree;	47	import com.sun.source.tree.BlockTree;
47	import com.sun.source.tree.ClassTree;	48	import com.sun.source.tree.ClassTree;
48	import com.sun.source.tree.LiteralTree;	49	import com.sun.source.tree.LiteralTree;
Lines 53-59 Link Here
53	import com.sun.source.tree.Tree.Kind;	54	import com.sun.source.tree.Tree.Kind;
54	import com.sun.source.tree.VariableTree;	55	import com.sun.source.tree.VariableTree;
55	import com.sun.source.util.TreePath;	56	import com.sun.source.util.TreePath;
		57	import com.sun.source.util.TreePathScanner;
56	import java.io.File;	58	import java.io.File;
		59	import java.util.ArrayList;
57	import java.util.Arrays;	60	import java.util.Arrays;
58	import java.util.HashSet;	61	import java.util.HashSet;
59	import java.util.List;	62	import java.util.List;
Lines 480-483 Link Here
480		483
481	assertFalse(info.getTreeUtilities().isStaticContext(s));	484	assertFalse(info.getTreeUtilities().isStaticContext(s));
482	}	485	}
		486
		487	public void testIsCompileTimeConstant() throws Exception {
		488	prepareTest("Test", "package test; public class Test { private void m(String str) { int i; i = 1 + 1; i = str.length(); } }");
		489
		490	final List<Boolean> result = new ArrayList<Boolean>();
		491
		492	new TreePathScanner<Void, Void>() {
		493	@Override public Void visitAssignment(AssignmentTree node, Void p) {
		494	result.add(info.getTreeUtilities().isCompileTimeConstantExpression(new TreePath(getCurrentPath(), node.getExpression())));
		495	return super.visitAssignment(node, p);
		496	}
		497	}.scan(info.getCompilationUnit(), null);
		498
		499	assertEquals(Arrays.asList(true, false), result);
		500	}
483	}	501	}