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test/langtools/tools/javac/SuperInit/EarlyAssignments.java

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  1 /*
  2  * @test /nodynamiccopyright/
  3  * @bug 8325805
  4  * @summary Permit non-superclass instance field assignments before this/super in constructors
  5  * @compile/fail/ref=EarlyAssignments.out -XDrawDiagnostics EarlyAssignments.java

  6  */
  7 public class EarlyAssignments {
  8 
  9     public static class Inner1 {
 10         public int x;
 11 
 12         public Inner1() {
 13             x = 123;                        // OK - "x" belongs to this class
 14             this.x = 123;                   // OK - "x" belongs to this class
 15             Inner1.this.x = 123;            // OK - "x" belongs to this class
 16             super();
 17         }
 18 
 19         public Inner1(int y) {
 20             y = x;                          // FAIL - early 'this' reference
 21             y = this.x;                     // FAIL - early 'this' reference
 22             y = Inner1.this.x;              // FAIL - early 'this' reference
 23             super();
 24         }
 25 
 26         public class Inner1a extends Inner1 {
 27             public int z;
 28             public Inner1a(byte value) {
 29                 Inner1.this.x = value;      // OK - "x" belongs to outer class
 30                 z = super.x;                // FAIL - "x" belongs to superclass
 31                 z = x;                      // FAIL - "x" belongs to superclass
 32                 this.z = x;                 // FAIL - "x" belongs to superclass
 33                 Inner1a.this.z = x;         // FAIL - "x" belongs to superclass
 34                 Object o1 = Inner1.this;    // OK - Inner1 is an outer class
 35                 Object o2 = Inner1a.this;   // FAIL - Inner1a is this class
 36                 super();
 37             }
 38             public Inner1a(short value) {
 39                 x = value;                  // FAIL - "x" belongs to superclass
 40                 super();
 41             }
 42             public Inner1a(char value) {

 77         public class Inner3a {
 78 
 79             public static int x;
 80 
 81             public Inner3a(int val) {
 82                 x = val;                    // OK - "x" is a static field
 83                 val = x;                    // OK - "x" is a static field
 84                 e = val;                    // OK - "e" belongs to outer class
 85                 val = e;                    // OK - "e" belongs to outer class
 86                 Inner3.this.e = val;        // OK - "e" belongs to outer class
 87                 super();
 88             }
 89         }
 90     }
 91 
 92     public static class Inner4 {
 93         public int x;
 94 
 95         public Inner4() {
 96             x = 0;                              // OK
 97             x = x + 1;                          // FAIL - illegal early access
 98             super();
 99         }
100 
101         public Inner4(int a) {
102             this.x = 0;                         // OK
103             this.x = this.x + 1;                // FAIL - illegal early access
104             super();
105         }
106 
107         public Inner4(char a) {
108             Inner4.this.x = 0;                  // OK
109             Inner4.this.x = Inner4.this.x + 1;  // FAIL - illegal early access
110             super();
111         }
112     }
113 
114     public static class Inner5 extends Inner4 {
115         public int y;
116 
117         public Inner5() {
118             y = x + 1;                          // FAIL - illegal early access
119             super();
120         }
121 
122         public Inner5(int a) {
123             this.y = x + 1;                     // FAIL - illegal early access
124             super();
125         }
126 
127         public Inner5(char a) {
128             Inner5.this.y = x + 1;              // FAIL - illegal early access
129             super();

151 
152     public static class Inner7 {
153         public final int x = 1;
154 
155         public Inner7() {
156             x = 2;                              // FAIL - illegal early access
157             super();
158         }
159     }
160 
161     public static class Inner8 {
162         class Inner8a {
163             int x;
164         }
165 
166         public Inner8() {
167             this.new Inner8a().x = 1;           // FAIL - illegal early access
168             super();
169         }
170     }









171 }

  1 /*
  2  * @test /nodynamiccopyright/
  3  * @bug 8325805
  4  * @summary Permit non-superclass instance field assignments before this/super in constructors
  5  * @compile/fail/ref=EarlyAssignments.out -XDrawDiagnostics EarlyAssignments.java
  6  * @enablePreview
  7  */
  8 public class EarlyAssignments {
  9 
 10     public static class Inner1 {
 11         public int x;
 12 
 13         public Inner1() {
 14             x = 123;                        // OK - "x" belongs to this class
 15             this.x = 123;                   // OK - "x" belongs to this class
 16             Inner1.this.x = 123;            // OK - "x" belongs to this class
 17             super();
 18         }
 19 
 20         public Inner1(int y) {
 21             y = x;                          // OK - "x" belongs to this class
 22             y = this.x;                     // OK - "x" belongs to this class
 23             y = Inner1.this.x;              // OK - "x" belongs to this class
 24             super();
 25         }
 26 
 27         public class Inner1a extends Inner1 {
 28             public int z;
 29             public Inner1a(byte value) {
 30                 Inner1.this.x = value;      // OK - "x" belongs to outer class
 31                 z = super.x;                // FAIL - "x" belongs to superclass
 32                 z = x;                      // FAIL - "x" belongs to superclass
 33                 this.z = x;                 // FAIL - "x" belongs to superclass
 34                 Inner1a.this.z = x;         // FAIL - "x" belongs to superclass
 35                 Object o1 = Inner1.this;    // OK - Inner1 is an outer class
 36                 Object o2 = Inner1a.this;   // FAIL - Inner1a is this class
 37                 super();
 38             }
 39             public Inner1a(short value) {
 40                 x = value;                  // FAIL - "x" belongs to superclass
 41                 super();
 42             }
 43             public Inner1a(char value) {

 78         public class Inner3a {
 79 
 80             public static int x;
 81 
 82             public Inner3a(int val) {
 83                 x = val;                    // OK - "x" is a static field
 84                 val = x;                    // OK - "x" is a static field
 85                 e = val;                    // OK - "e" belongs to outer class
 86                 val = e;                    // OK - "e" belongs to outer class
 87                 Inner3.this.e = val;        // OK - "e" belongs to outer class
 88                 super();
 89             }
 90         }
 91     }
 92 
 93     public static class Inner4 {
 94         public int x;
 95 
 96         public Inner4() {
 97             x = 0;                              // OK
 98             x = x + 1;                          // OK
 99             super();
100         }
101 
102         public Inner4(int a) {
103             this.x = 0;                         // OK
104             this.x = this.x + 1;                // OK
105             super();
106         }
107 
108         public Inner4(char a) {
109             Inner4.this.x = 0;                  // OK
110             Inner4.this.x = Inner4.this.x + 1;  // OK
111             super();
112         }
113     }
114 
115     public static class Inner5 extends Inner4 {
116         public int y;
117 
118         public Inner5() {
119             y = x + 1;                          // FAIL - illegal early access
120             super();
121         }
122 
123         public Inner5(int a) {
124             this.y = x + 1;                     // FAIL - illegal early access
125             super();
126         }
127 
128         public Inner5(char a) {
129             Inner5.this.y = x + 1;              // FAIL - illegal early access
130             super();

152 
153     public static class Inner7 {
154         public final int x = 1;
155 
156         public Inner7() {
157             x = 2;                              // FAIL - illegal early access
158             super();
159         }
160     }
161 
162     public static class Inner8 {
163         class Inner8a {
164             int x;
165         }
166 
167         public Inner8() {
168             this.new Inner8a().x = 1;           // FAIL - illegal early access
169             super();
170         }
171     }
172 
173     public static class Inner9 {
174         int x = 1;
175         int y;
176         Inner9() {
177             y = x; // FAIL, x has an initializer
178             super();
179         }
180     }
181 }
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