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Posted to dev@thrift.apache.org by "Wes Henderson (JIRA)" <ji...@apache.org> on 2015/03/07 00:56:39 UTC

[jira] [Updated] (THRIFT-3029) Getters for fields defined with uppercase names do not work

     [ https://issues.apache.org/jira/browse/THRIFT-3029?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wes Henderson updated THRIFT-3029:
----------------------------------
    Description: 
Using a thrift file such as:
{code:title=foo.thrift|borderStyle=solid}
struct Foo {
  1: required i32 Bar;
  2: required i32 baz;
}
{code}
The generated Objective-C object, "baz" will have working getters but "Bar" will not. For example, after setting bar to 5 and baz to 9, I get the following output depending on the syntax:
{code}
[foo bar] => 0
[foo Bar] (private method invoked by performSelector) => 5
foo.bar => 0
foo.Bar => 0
foo.baz => 9
{code}

The problem is that the generated header specifies a lowercase getter:
{code:}
@property (nonatomic, getter=bar, setter=setBar:) int32_t Bar;
{code}
Whereas the .m file uses uppercase:
{code}
- (int32_t) Bar {
  return __Bar;
}
{code}

When the Objective-C compiler sees that there is no lowercase getter implementation provided, it automatically generates one (this is supposed to be a convenience of the @property syntax). So effectively, two getters are defined: a lowercase one that does not work, and an uppercase one that does work but is private.

As a workaround one can define all their fields beginning with a lowercase letter, if possible.

  was:
Using a thrift file such as:
struct Foo {
  1: required i32 Bar;
  2: required i32 baz;
}
The generated Objective-C object, "baz" will have working getters but "Bar" will not. For example, after setting bar to 5 and baz to 9, I get the following output depending on the syntax:
[foo bar] => 0
[foo Bar] (private method invoked by performSelector) => 5
foo.bar => 0
foo.Bar => 0
foo.baz => 9

The problem is that the generated header specifies a lowercase getter:
@property (nonatomic, getter=bar, setter=setBar:) int32_t Bar;

Whereas the .m file uses uppercase:
- (int32_t) Bar {
  return __Bar;
}

When the Objective-C compiler sees that there is no lowercase getter implementation provided, it automatically generates one (this is supposed to be a convenience of the @property syntax). So effectively, two getters are defined: a lowercase one that does not work, and an uppercase one that does work but is private.

As a workaround one can define all their fields beginning with a lowercase letter, if possible.


> Getters for fields defined with uppercase names do not work
> -----------------------------------------------------------
>
>                 Key: THRIFT-3029
>                 URL: https://issues.apache.org/jira/browse/THRIFT-3029
>             Project: Thrift
>          Issue Type: Bug
>          Components: Cocoa - Compiler
>    Affects Versions: 0.9.2
>            Reporter: Wes Henderson
>            Priority: Critical
>
> Using a thrift file such as:
> {code:title=foo.thrift|borderStyle=solid}
> struct Foo {
>   1: required i32 Bar;
>   2: required i32 baz;
> }
> {code}
> The generated Objective-C object, "baz" will have working getters but "Bar" will not. For example, after setting bar to 5 and baz to 9, I get the following output depending on the syntax:
> {code}
> [foo bar] => 0
> [foo Bar] (private method invoked by performSelector) => 5
> foo.bar => 0
> foo.Bar => 0
> foo.baz => 9
> {code}
> The problem is that the generated header specifies a lowercase getter:
> {code:}
> @property (nonatomic, getter=bar, setter=setBar:) int32_t Bar;
> {code}
> Whereas the .m file uses uppercase:
> {code}
> - (int32_t) Bar {
>   return __Bar;
> }
> {code}
> When the Objective-C compiler sees that there is no lowercase getter implementation provided, it automatically generates one (this is supposed to be a convenience of the @property syntax). So effectively, two getters are defined: a lowercase one that does not work, and an uppercase one that does work but is private.
> As a workaround one can define all their fields beginning with a lowercase letter, if possible.



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