Dyn keyword is not escaped.

[pronebird]

Input C/C++ Header

struct pf_addr_wrap {
	union {
		struct {
			struct pf_addr		 addr;
			struct pf_addr		 mask;
		}			 a;
		char			 ifname[IFNAMSIZ];
		char			 tblname[PF_TABLE_NAME_SIZE];
		char			 rtlabelname[RTLABEL_LEN];
		u_int32_t		 rtlabel;
	}			 v;
	union {
#ifdef KERNEL
		struct pfi_dynaddr	*dyn	__attribute__((aligned(8)));
		struct pfr_ktable	*tbl	__attribute__((aligned(8)));
#else /* !KERNEL */
		void			*dyn	__attribute__((aligned(8)));
		void			*tbl	__attribute__((aligned(8)));
#endif /* !KERNEL */
		int			 dyncnt __attribute__((aligned(8)));
		int			 tblcnt __attribute__((aligned(8)));
	}			 p __attribute__((aligned(8)));
	u_int8_t		 type;		/* PF_ADDR_* */
	u_int8_t		 iflags;	/* PFI_AFLAG_* */
};

Bindgen Invocation

bindgen::Builder::default()
    .header("input.h")
    .generate()
    .unwrap()

or

$ bindgen input.h --whatever --flags

Actual Results

error: expected identifier, found keyword `dyn`
   --> src/ffi/pfvar.rs:581:9
    |
581 |     pub dyn: *mut ::std::os::raw::c_void,
    |         ^^^ expected identifier, found keyword
    |
help: you can escape reserved keywords to use them as identifiers
    |
581 |     pub r#dyn: *mut ::std::os::raw::c_void,
    |         ^^^^^

error: unions cannot have zero fields
   --> src/ffi/pfvar.rs:580:1
    |
580 | / pub union pf_addr_wrap__bindgen_ty_2 {
581 | |     pub dyn: *mut ::std::os::raw::c_void,
582 | |     pub tbl: *mut ::std::os::raw::c_void,
583 | |     pub dyncnt: ::std::os::raw::c_int,
584 | |     pub tblcnt: ::std::os::raw::c_int,
585 | |     _bindgen_union_align: u64,
586 | | }
    | |_^

and/or

// Insert the (incorrect/buggy) generated bindings here

and/or

Insert compilation errors generated when compiling the bindings with rustc here

Expected Results

[emilio]

Nice catch, easy enough :)

#1951