Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: src/share/classes/com/sun/tools/javac/comp/Lower.java
src/share/classes/com/sun/tools/javac/comp/Lower.java
- changeset 133
- c0372d1097c0
- parent 113
- eff38cc97183
- child 237
- 9711a6c2db7e
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| 132:a54ef8459576 | 133:c0372d1097c0 |
|---|---|
| 1882 } | 1882 } |
| 1883 }); | 1883 }); |
| 1884 } | 1884 } |
| 1885 }); | 1885 }); |
| 1886 } | 1886 } |
| 1887 case JCTree.TYPECAST: { | |
| 1888 return abstractLval(((JCTypeCast)lval).expr, builder); | |
| 1889 } | |
| 1887 } | 1890 } |
| 1888 throw new AssertionError(lval); | 1891 throw new AssertionError(lval); |
| 1889 } | 1892 } |
| 1890 | 1893 |
| 1891 // evaluate and discard the first expression, then evaluate the second. | 1894 // evaluate and discard the first expression, then evaluate the second. |
| 2711 if (!tree.lhs.type.isPrimitive() && | 2714 if (!tree.lhs.type.isPrimitive() && |
| 2712 tree.operator.type.getReturnType().isPrimitive()) { | 2715 tree.operator.type.getReturnType().isPrimitive()) { |
| 2713 // boxing required; need to rewrite as x = (unbox typeof x)(x op y); | 2716 // boxing required; need to rewrite as x = (unbox typeof x)(x op y); |
| 2714 // or if x == (typeof x)z then z = (unbox typeof x)((typeof x)z op y) | 2717 // or if x == (typeof x)z then z = (unbox typeof x)((typeof x)z op y) |
| 2715 // (but without recomputing x) | 2718 // (but without recomputing x) |
| 2716 JCTree arg = (tree.lhs.getTag() == JCTree.TYPECAST) | 2719 JCTree newTree = abstractLval(tree.lhs, new TreeBuilder() { |
| 2717 ? ((JCTypeCast)tree.lhs).expr | |
| 2718 : tree.lhs; | |
| 2719 JCTree newTree = abstractLval(arg, new TreeBuilder() { | |
| 2720 public JCTree build(final JCTree lhs) { | 2720 public JCTree build(final JCTree lhs) { |
| 2721 int newTag = tree.getTag() - JCTree.ASGOffset; | 2721 int newTag = tree.getTag() - JCTree.ASGOffset; |
| 2722 // Erasure (TransTypes) can change the type of | 2722 // Erasure (TransTypes) can change the type of |
| 2723 // tree.lhs. However, we can still get the | 2723 // tree.lhs. However, we can still get the |
| 2724 // unerased type of tree.lhs as it is stored | 2724 // unerased type of tree.lhs as it is stored |
| 2766 JCTree lowerBoxedPostop(final JCUnary tree) { | 2766 JCTree lowerBoxedPostop(final JCUnary tree) { |
| 2767 // translate to tmp1=lval(e); tmp2=tmp1; tmp1 OP 1; tmp2 | 2767 // translate to tmp1=lval(e); tmp2=tmp1; tmp1 OP 1; tmp2 |
| 2768 // or | 2768 // or |
| 2769 // translate to tmp1=lval(e); tmp2=tmp1; (typeof tree)tmp1 OP 1; tmp2 | 2769 // translate to tmp1=lval(e); tmp2=tmp1; (typeof tree)tmp1 OP 1; tmp2 |
| 2770 // where OP is += or -= | 2770 // where OP is += or -= |
| 2771 final boolean cast = tree.arg.getTag() == JCTree.TYPECAST; | 2771 final boolean cast = TreeInfo.skipParens(tree.arg).getTag() == JCTree.TYPECAST; |
| 2772 final JCExpression arg = cast ? ((JCTypeCast)tree.arg).expr : tree.arg; | 2772 return abstractLval(tree.arg, new TreeBuilder() { |
| 2773 return abstractLval(arg, new TreeBuilder() { | |
| 2774 public JCTree build(final JCTree tmp1) { | 2773 public JCTree build(final JCTree tmp1) { |
| 2775 return abstractRval(tmp1, tree.arg.type, new TreeBuilder() { | 2774 return abstractRval(tmp1, tree.arg.type, new TreeBuilder() { |
| 2776 public JCTree build(final JCTree tmp2) { | 2775 public JCTree build(final JCTree tmp2) { |
| 2777 int opcode = (tree.getTag() == JCTree.POSTINC) | 2776 int opcode = (tree.getTag() == JCTree.POSTINC) |
| 2778 ? JCTree.PLUS_ASG : JCTree.MINUS_ASG; | 2777 ? JCTree.PLUS_ASG : JCTree.MINUS_ASG; |
