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boolean binary expressions of the format false && non_constant and true || non_constant can be evaluated as constant at compile time

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This commit is contained in:
Bas Leijdekkers
2011-06-27 23:28:02 +02:00
parent ea6dca5366
commit 3645fce7be
3 changed files with 60 additions and 30 deletions
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java/java-tests/testData/psi/constantValues/ClassWithConstants.java
+6
View File
@@ -9,6 +9,12 @@ public class ClassWithConstants {
public static final byte BYTE_CONST = 4;
public static final char CHAR_CONST = '5';
public static final boolean BOOL_CONST = true;
public static final boolean BOOL_CONST2 = false && foo();
public static final boolean BOOL_CONST3 = true || foo();
static boolean foo() {
return false;
}
public static final float FLOAT_CONST = 1.234f;
public static final double DOUBLE_CONST = 3.456;
public static final java.lang.String STRING_CONST = "a\r\n\"bcd";
java/java-tests/testSrc/com/intellij/psi/ConstantValuesTest.java
+22
View File
@@ -197,6 +197,28 @@ public class ConstantValuesTest extends PsiTestCase{
assertEquals(Boolean.TRUE, field.computeConstantValue());
}
public void testBoolean2(){
PsiField field = myClass.findFieldByName("BOOL_CONST2", false);
assertNotNull(field);
final PsiExpression initializer = field.getInitializer();
assertNotNull(initializer);
assertEquals(PsiType.BOOLEAN, initializer.getType());
assertEquals("false && foo()", initializer.getText());
assertEquals(Boolean.FALSE, field.computeConstantValue());
}
public void testBoolean3(){
PsiField field = myClass.findFieldByName("BOOL_CONST3", false);
assertNotNull(field);
final PsiExpression initializer = field.getInitializer();
assertNotNull(initializer);
assertEquals(PsiType.BOOLEAN, initializer.getType());
assertEquals("true || foo()", initializer.getText());
assertEquals(Boolean.TRUE, field.computeConstantValue());
}
public void testFloat(){
PsiField field = myClass.findFieldByName("FLOAT_CONST", false);
assertNotNull(field);