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Code Issues 9 Pull Requests Releases Activity

Removed 'Integer.valueOf()' boxing of literals

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master
Dmitry Cherniachenko 8 years ago committed by Egor.Ushakov
parent 40c4d82996
commit 5f292c415c
5 changed files with 134 additions and 109 deletions
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  1. 9
      src/org/jetbrains/java/decompiler/modules/decompiler/exps/InvocationExprent.java
  2. BIN
      testData/classes/pkg/TestPrimitives.class
  3. 2
      testData/results/TestClassLambda.dec
  4. 231
      testData/results/TestPrimitives.dec
  5. 1
      testData/src/pkg/TestPrimitives.java

9
src/org/jetbrains/java/decompiler/modules/decompiler/exps/InvocationExprent.java
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@ -409,6 +409,15 @@ public class InvocationExprent extends Exprent {
// special handling for ambiguous types
if (lstParameters.get(0).type == Exprent.EXPRENT_CONST) {
// 'Integer.valueOf(1)' has '1' type detected as TYPE_BYTECHAR
if (lstParameters.get(0).getExprType().typeFamily == CodeConstants.TYPE_FAMILY_INTEGER) {
if (classname.equals("java/lang/Integer")) {
// 'Integer.valueOf(40_000)' will change to '40_000' and that will be interpreted as 'char' type
((ConstExprent) lstParameters.get(0)).setConstType(VarType.VARTYPE_INT);
return true;
}
}
if (paramType == CodeConstants.TYPE_BYTECHAR || paramType == CodeConstants.TYPE_SHORTCHAR) {
if (classname.equals("java/lang/Character")) {
return true;

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testData/classes/pkg/TestPrimitives.class
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2
testData/results/TestClassLambda.dec
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@ -15,7 +15,7 @@ public class TestClassLambda {
public int field = 0;
public void testLambda() {
List var1 = Arrays.asList(Integer.valueOf(1), Integer.valueOf(2), Integer.valueOf(3), Integer.valueOf(4), Integer.valueOf(5), Integer.valueOf(6), Integer.valueOf(7));// 29
List var1 = Arrays.asList(new Integer[]{1, 2, 3, 4, 5, 6, 7});// 29
int var2 = (int)Math.random();// 30
var1.forEach((var2x) -> {// 32
int var3 = 2 * var2x.intValue();// 33

231
testData/results/TestPrimitives.dec
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@ -10,55 +10,56 @@ public class TestPrimitives {
this.printFloat(1.23F);// 11
this.printDouble(1.23D);// 12
this.printChar('Z');// 13
System.out.println(String.format("%b, %d, %d, %d", this.getBoolean(), this.getByte(), this.getShort(), this.getInt()));// 15
}// 16
String.format("%b, %d, %d, %d, %c", new Object[]{true, 1, 213, 40000, 'c', 42L});// 15
System.out.println(String.format("%b, %d, %d, %d", this.getBoolean(), this.getByte(), this.getShort(), this.getInt()));// 16
}// 17
public void printBoolean(boolean b) {
System.out.println(String.format("%b", b));// 19
}// 20
System.out.println(String.format("%b", b));// 20
}// 21
public void printByte(byte b) {
System.out.println(String.format("%d", b));// 23
}// 24
System.out.println(String.format("%d", b));// 24
}// 25
public void printShort(short s) {
System.out.println(String.format("%d", s));// 27
}// 28
System.out.println(String.format("%d", s));// 28
}// 29
public void printInt(int i) {
System.out.println(String.format("%d", i));// 31
}// 32
System.out.println(String.format("%d", i));// 32
}// 33
public void printLong(long l) {
System.out.println(String.format("%d", l));// 35
}// 36
System.out.println(String.format("%d", l));// 36
}// 37
public void printFloat(float f) {
System.out.println(String.format("%f", f));// 39
}// 40
System.out.println(String.format("%f", f));// 40
}// 41
public void printDouble(double d) {
System.out.println(String.format("%f", d));// 43
}// 44
System.out.println(String.format("%f", d));// 44
}// 45
public void printChar(char c) {
System.out.println(String.format("%c", c));// 47
}// 48
System.out.println(String.format("%c", c));// 48
}// 49
public boolean getBoolean() {
return false;// 52
return false;// 53
}
public byte getByte() {
return -128;// 56
return -128;// 57
}
public short getShort() {
return -32768;// 60
return -32768;// 61
}
public int getInt() {
return 42;// 64
return 42;// 65
}
public void printNarrowed() {
@ -107,120 +108,134 @@ class 'pkg/TestPrimitives' {
2d 11
2f 11
32 12
35 12
3e 12
41 12
48 12
4b 12
3b 12
3c 12
42 12
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a1 13
a4 14
}
method 'printBoolean (Z)V' {
0 16
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c 16
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0 17
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c 17
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13 17
16 18
}
method 'printByte (B)V' {
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c 20
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0 21
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c 21
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}
method 'printShort (S)V' {
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c 24
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c 25
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}
method 'printInt (I)V' {
0 28
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c 28
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16 29
0 29
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c 29
10 29
13 29
16 30
}
method 'printLong (J)V' {
0 32
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c 32
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0 33
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c 33
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}
method 'printFloat (F)V' {
0 36
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c 36
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c 37
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}
method 'printDouble (D)V' {
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c 40
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c 41
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16 42
}
method 'printChar (C)V' {
0 44
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c 44
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0 45
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c 45
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}
method 'getBoolean ()Z' {
0 48
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0 49
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}
method 'getByte ()B' {
0 52
2 52
0 53
2 53
}
method 'getShort ()S' {
0 56
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0 57
3 57
}
method 'getInt ()I' {
0 60
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0 61
2 61
}
method 'printNarrowed ()V' {
2 64
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b 65
e 65
f 65
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2 65
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b 66
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f 66
12 67
}
method 'constructor ()V' {
@ -282,27 +297,27 @@ Lines mapping:
13 <-> 12
15 <-> 13
16 <-> 14
19 <-> 17
17 <-> 15
20 <-> 18
23 <-> 21
21 <-> 19
24 <-> 22
27 <-> 25
25 <-> 23
28 <-> 26
31 <-> 29
29 <-> 27
32 <-> 30
35 <-> 33
33 <-> 31
36 <-> 34
39 <-> 37
37 <-> 35
40 <-> 38
43 <-> 41
41 <-> 39
44 <-> 42
47 <-> 45
45 <-> 43
48 <-> 46
52 <-> 49
56 <-> 53
60 <-> 57
64 <-> 61
68 <-> 65
49 <-> 47
53 <-> 50
57 <-> 54
61 <-> 58
65 <-> 62
69 <-> 66
70 <-> 67
73 <-> 70

1
testData/src/pkg/TestPrimitives.java
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@ -12,6 +12,7 @@ public class TestPrimitives {
printDouble(1.23);
printChar('Z');
String.format("%b, %d, %d, %d, %c", true, 1, 213, 40_000, 'c', 42L);
System.out.println(String.format("%b, %d, %d, %d", getBoolean(), getByte(), getShort(), getInt()));
}

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