#188 parse Java @interface defaults

[Elliott Hughes]

we fall over on this:

public @interface i {
String n() default "ninjas; monkeys!";
String m();
}

producing a bogus unprintable tag containing the single character 0xd3, which is used by fileGetc to represent string constants. (which in itself is a bug, because 0xd3 could be part of an identifier.)

the easy part of the fix is something like this:

@@ -2019,6 +2019,10 @@
c = skipToNonWhite ();
}
} while (c == '.' || c == ',');
+ } else if (token->keyword == KEYWORD_DEFAULT) {
+ c = skipToNonWhite ();
+ readIdentifier (token, c);
+ c = skipToNonWhite ();
}
}
cppUngetc (c);

but the readIdentifier is wrong, because the default is an expression, and needn't be a single identifier.

[Aviv Eyal]

This is a simpler example that produces wrong output:

public @interface Sample {
    int abc() default 1;
}

produces the symbol d instead of abc.

[Masatake YAMATO]

[yamato@x201]/tmp% u-ctags --version | head -1
Universal Ctags 0.0.0(f4ff979), Copyright (C) 2015 Universal Ctags Team
[yamato@x201]/tmp% u-ctags -o - foo.java
Sample  foo.java    /^public @interface Sample {$/;"    a
abc foo.java    /^    int abc() default 1;$/;"  m   annotation:Sample
[yamato@x201]/tmp% cat /tmp/foo.java 
public @interface Sample {
    int abc() default 1;
}
[yamato@x201]/tmp%