Add toString to Java code

* toString is mainly for debugging purposes.
* For structs and interfaces, add Object.toString.
* For enums, add MyEnum.toString(int) and MyEnum.dumpBitfield(int).

Use them as follows:
* For enums, use the static method E.toString(int).
* For bitfields, use the static method E.dumpBitfield(int).
* For all arrays, use java.utils.Arrays.deepToString(o)
* For everything else, use one of the following:
    * o.toString(), if o is not null
    * Object.toString(o)
    * String.valueOf(o)
* Note that for array / vec of enums / bitfields, the raw integer
  value is dumped.

Bug: 33459772
Test: hidl_test_java

Change-Id: Ifb1ed519770b907e0a4e345b2c3109dc322a23b2
13 files changed
tree: 8f3b2e7e30df64c78ca2c2657716c9908787aad1
  1. c2hal/
  2. test/
  3. utils/
  4. Android.bp
  5. Annotation.cpp
  6. Annotation.h
  7. ArrayType.cpp
  8. ArrayType.h
  9. AST.cpp
  10. AST.h
  11. CompoundType.cpp
  12. CompoundType.h
  13. ConstantExpression.cpp
  14. ConstantExpression.h
  15. Coordinator.cpp
  16. Coordinator.h
  17. DeathRecipientType.cpp
  18. DeathRecipientType.h
  19. EnumType.cpp
  20. EnumType.h
  21. FmqType.cpp
  22. FmqType.h
  23. generateCpp.cpp
  24. generateCppImpl.cpp
  25. generateJava.cpp
  26. generateVts.cpp
  27. HandleType.cpp
  28. HandleType.h
  29. hidl-gen_l.ll
  30. hidl-gen_y.yy
  31. Interface.cpp
  32. Interface.h
  33. Location.h
  34. main.cpp
  35. MemoryType.cpp
  36. MemoryType.h
  37. Method.cpp
  38. Method.h
  39. MODULE_LICENSE_APACHE2
  40. NamedType.cpp
  41. NamedType.h
  42. NOTICE
  43. PointerType.cpp
  44. PointerType.h
  45. README.md
  46. RefType.cpp
  47. RefType.h
  48. ScalarType.cpp
  49. ScalarType.h
  50. Scope.cpp
  51. Scope.h
  52. StringType.cpp
  53. StringType.h
  54. Type.cpp
  55. Type.h
  56. TypeDef.cpp
  57. TypeDef.h
  58. VectorType.cpp
  59. VectorType.h
README.md

hidl-gen user guide

1. Build

croot
make hidl-gen

2. Run

hidl-gen -o output-path -L language (-r interface-root) fqname

output-path: directory to store the output files.
language: output file for given language. e.g.c++, vts..

fqname: fully qualified name of the input files.
For singe file input, follow the format: package@version::fileName
For directory input, follow the format: package@version

interface-root(optional): prefix and root path for fqname.
If not set, use the default prefix: android.hardware and default root path
defined in $TOP.

examples:

croot
hidl-gen -o output -L c++ -r android.hardware:hardware/interfaces -r android.hidl:system/libhidl/transport android.hardware.nfc@1.0::INfc.hal
hidl-gen -o output -L vts -r android.hardware:hardware/interfaces -r android.hidl:system/libhidl/transport android.hardware.nfc@1.0
hidl-gen -o test -L c++ -r android.hardware:hardware/interfaces -r android.hidl:system/libhidl/transport android.hardware.nfc@1.0