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ObjC NeXT, split encode-support code from next-mapping.h
* objc-obj-c++-shared/next-mapping.h: Move code and definitions for emulation of libobjc-gnu structure layout functionality to .. * objc-obj-c++-shared/objc-test-suite-next-encode-assist.h: New. * objc-obj-c++-shared/objc-test-suite-next-encode-assist-impl.h: New. * objc/execute/bf-common.h: Adjust headers. * objc/execute/bf-1.m: Likewise. * objc/execute/bf-2.m: Likewise. * objc/execute/bf-3.m: Likewise. * objc/execute/bf-4.m: Likewise. * objc/execute/bf-5.m: Likewise. * objc/execute/bf-6.m: Likewise. * objc/execute/bf-7.m: Likewise. * objc/execute/bf-8.m: Likewise. * objc/execute/bf-9.m: Likewise. * objc/execute/bf-10.m: Likewise. * objc/execute/bf-11.m: Likewise. * objc/execute/bf-12.m: Likewise. * objc/execute/bf-13.m: Likewise. * objc/execute/bf-14.m: Likewise. * objc/execute/bf-15.m: Likewise. * objc/execute/bf-16.m: Likewise. * objc/execute/bf-17.m: Likewise. * objc/execute/bf-18.m: Likewise. * objc/execute/bf-19.m: Likewise. * objc/execute/bf-20.m: Likewise. * objc/execute/bf-21.m: Likewise. * objc/execute/bycopy-3.m: Adjust headers, add next-specific code for objc_get_type_qualifiers (). From-SVN: r168597
This commit is contained in:
parent
ecb3baaa8e
commit
d5dc93f446
gcc/testsuite
@ -1,3 +1,34 @@
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2011-01-08 Iain Sandoe <iains@gcc.gnu.org>
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* objc-obj-c++-shared/next-mapping.h: Move code and definitions for
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emulation of libobjc-gnu structure layout functionality to ..
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* objc-obj-c++-shared/objc-test-suite-next-encode-assist.h: New.
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* objc-obj-c++-shared/objc-test-suite-next-encode-assist-impl.h: New.
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* objc/execute/bf-common.h: Adjust headers.
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* objc/execute/bf-1.m: Likewise.
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* objc/execute/bf-2.m: Likewise.
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* objc/execute/bf-3.m: Likewise.
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* objc/execute/bf-4.m: Likewise.
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* objc/execute/bf-5.m: Likewise.
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* objc/execute/bf-6.m: Likewise.
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* objc/execute/bf-7.m: Likewise.
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* objc/execute/bf-8.m: Likewise.
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* objc/execute/bf-9.m: Likewise.
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* objc/execute/bf-10.m: Likewise.
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* objc/execute/bf-11.m: Likewise.
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* objc/execute/bf-12.m: Likewise.
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* objc/execute/bf-13.m: Likewise.
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* objc/execute/bf-14.m: Likewise.
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* objc/execute/bf-15.m: Likewise.
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* objc/execute/bf-16.m: Likewise.
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* objc/execute/bf-17.m: Likewise.
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* objc/execute/bf-18.m: Likewise.
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* objc/execute/bf-19.m: Likewise.
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* objc/execute/bf-20.m: Likewise.
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* objc/execute/bf-21.m: Likewise.
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* objc/execute/bycopy-3.m: Adjust headers, add next-specific code for
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objc_get_type_qualifiers ().
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2011-01-08 Thomas Koenig <tkoenig@gcc.gnu.org>
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PR fortran/45777
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@ -1,3 +1,6 @@
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#ifndef _OBJC_NEXT_MAPPING_H_
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#define _OBJC_NEXT_MAPPING_H_
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/* This file "renames" various ObjC GNU runtime entry points
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(and fakes the existence of several others)
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if the NeXT runtime is being used. */
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@ -81,839 +84,6 @@
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#define NULL 0
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#endif
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/* The following is necessary to "cover" the bf*.m test cases on NeXT. */
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#undef MAX
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#undef MIN
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#undef ROUND
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#ifdef __cplusplus
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# define MAX(X, Y) ((X > Y) ? X : Y)
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# define MIN(X, Y) ((X < Y) ? X : Y)
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# define ROUND(V, A) (A * ((V + A - 1) / A))
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#else
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# define MAX(X, Y) \
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({ typeof (X) __x = (X), __y = (Y); \
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(__x > __y ? __x : __y); })
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# define MIN(X, Y) \
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({ typeof (X) __x = (X), __y = (Y); \
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(__x < __y ? __x : __y); })
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# define ROUND(V, A) \
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({ typeof (V) __v = (V); typeof (A) __a = (A); \
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__a * ((__v+__a - 1)/__a); })
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#endif
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#define BITS_PER_UNIT __CHAR_BIT__
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typedef struct{ char a; } __small_struct;
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#define STRUCTURE_SIZE_BOUNDARY (BITS_PER_UNIT * sizeof (__small_struct))
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/* Not sure why the following are missing from NeXT objc headers... */
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#ifndef _C_LNG_LNG
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#define _C_LNG_LNG 'q'
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#endif
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#ifndef _C_ULNG_LNG
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#define _C_ULNG_LNG 'Q'
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#endif
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#ifndef _C_ATOM
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#define _C_ATOM '%'
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#endif
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#ifndef _C_BOOL
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#define _C_BOOL 'B'
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#endif
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#define _C_CONST 'r'
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#define _C_IN 'n'
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#define _C_INOUT 'N'
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#define _C_OUT 'o'
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#define _C_BYCOPY 'O'
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#define _C_BYREF 'R'
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#define _C_ONEWAY 'V'
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#define _C_GCINVISIBLE '!'
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#define _F_CONST 0x01
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#define _F_IN 0x01
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#define _F_OUT 0x02
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#define _F_INOUT 0x03
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#define _F_BYCOPY 0x04
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#define _F_BYREF 0x08
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#define _F_ONEWAY 0x10
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#define _F_GCINVISIBLE 0x20
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struct objc_struct_layout
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{
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const char *original_type;
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const char *type;
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const char *prev_type;
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unsigned int record_size;
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unsigned int record_align;
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};
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typedef union arglist {
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char *arg_ptr;
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char arg_regs[sizeof (char*)];
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} *arglist_t; /* argument frame */
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const char *objc_skip_typespec (const char *type);
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void objc_layout_structure_get_info (struct objc_struct_layout *layout,
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unsigned int *offset, unsigned int *align, const char **type);
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void objc_layout_structure (const char *type,
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struct objc_struct_layout *layout);
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BOOL objc_layout_structure_next_member (struct objc_struct_layout *layout);
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void objc_layout_finish_structure (struct objc_struct_layout *layout,
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unsigned int *size, unsigned int *align);
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int objc_aligned_size (const char *type);
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/*
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return the size of an object specified by type
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*/
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int
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objc_sizeof_type (const char *type)
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{
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/* Skip the variable name if any */
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if (*type == '"')
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{
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for (type++; *type++ != '"';)
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/* do nothing */;
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}
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switch (*type) {
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case _C_ID:
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return sizeof (id);
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break;
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case _C_CLASS:
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return sizeof (Class);
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break;
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case _C_SEL:
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return sizeof (SEL);
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break;
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case _C_CHR:
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return sizeof (char);
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break;
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case _C_UCHR:
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return sizeof (unsigned char);
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break;
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case _C_SHT:
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return sizeof (short);
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break;
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case _C_USHT:
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return sizeof (unsigned short);
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break;
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case _C_INT:
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return sizeof (int);
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break;
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case _C_UINT:
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return sizeof (unsigned int);
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break;
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case _C_LNG:
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return sizeof (long);
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break;
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case _C_ULNG:
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return sizeof (unsigned long);
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break;
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case _C_LNG_LNG:
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return sizeof (long long);
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break;
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case _C_ULNG_LNG:
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return sizeof (unsigned long long);
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break;
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case _C_FLT:
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return sizeof (float);
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break;
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case _C_DBL:
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return sizeof (double);
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break;
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case _C_PTR:
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case _C_ATOM:
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case _C_CHARPTR:
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return sizeof (char *);
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break;
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case _C_ARY_B:
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{
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int len = atoi (type + 1);
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while (isdigit ((unsigned char)*++type))
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;
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return len * objc_aligned_size (type);
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}
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break;
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case _C_BFLD:
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{
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/* The NeXT encoding of bitfields is _still_: b 'size' */
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int size = atoi (type + 1);
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/* Return an upper bound on byte size */
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return (size + BITS_PER_UNIT - 1) / BITS_PER_UNIT;
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}
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case _C_STRUCT_B:
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{
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struct objc_struct_layout layout;
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unsigned int size;
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objc_layout_structure (type, &layout);
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while (objc_layout_structure_next_member (&layout))
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/* do nothing */ ;
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objc_layout_finish_structure (&layout, &size, NULL);
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return size;
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}
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case _C_UNION_B:
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{
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int max_size = 0;
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while (*type != _C_UNION_E && *type++ != '=')
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/* do nothing */;
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while (*type != _C_UNION_E)
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{
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/* Skip the variable name if any */
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if (*type == '"')
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{
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for (type++; *type++ != '"';)
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/* do nothing */;
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}
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max_size = MAX (max_size, objc_sizeof_type (type));
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type = objc_skip_typespec (type);
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}
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return max_size;
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}
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}
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return 0; /* error */
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}
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/*
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Return the alignment of an object specified by type
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*/
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int
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objc_alignof_type (const char *type)
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{
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/* Skip the variable name if any */
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if (*type == '"')
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{
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for (type++; *type++ != '"';)
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/* do nothing */;
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}
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switch (*type) {
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case _C_ID:
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return __alignof__ (id);
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break;
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case _C_CLASS:
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return __alignof__ (Class);
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break;
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case _C_SEL:
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return __alignof__ (SEL);
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break;
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case _C_CHR:
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return __alignof__ (char);
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break;
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case _C_UCHR:
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return __alignof__ (unsigned char);
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break;
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case _C_SHT:
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return __alignof__ (short);
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break;
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case _C_USHT:
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return __alignof__ (unsigned short);
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break;
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case _C_INT:
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case _C_BFLD: /* This is for the NeXT only */
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return __alignof__ (int);
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break;
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case _C_UINT:
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return __alignof__ (unsigned int);
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break;
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case _C_LNG:
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return __alignof__ (long);
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break;
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case _C_ULNG:
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return __alignof__ (unsigned long);
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break;
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case _C_LNG_LNG:
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return __alignof__ (long long);
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break;
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case _C_ULNG_LNG:
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return __alignof__ (unsigned long long);
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break;
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case _C_FLT:
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return __alignof__ (float);
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break;
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case _C_DBL:
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return __alignof__ (double);
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break;
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case _C_PTR:
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case _C_ATOM:
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case _C_CHARPTR:
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return __alignof__ (char *);
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break;
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case _C_ARY_B:
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while (isdigit ((unsigned char)*++type))
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/* do nothing */;
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return objc_alignof_type (type);
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case _C_STRUCT_B:
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{
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struct objc_struct_layout layout;
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unsigned int align;
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objc_layout_structure (type, &layout);
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while (objc_layout_structure_next_member (&layout))
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/* do nothing */;
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objc_layout_finish_structure (&layout, NULL, &align);
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return align;
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}
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case _C_UNION_B:
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{
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int maxalign = 0;
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while (*type != _C_UNION_E && *type++ != '=')
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/* do nothing */;
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while (*type != _C_UNION_E)
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{
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/* Skip the variable name if any */
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if (*type == '"')
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{
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for (type++; *type++ != '"';)
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/* do nothing */;
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}
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maxalign = MAX (maxalign, objc_alignof_type (type));
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type = objc_skip_typespec (type);
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}
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return maxalign;
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}
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}
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return 0; /* error */
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}
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/*
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The aligned size if the size rounded up to the nearest alignment.
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*/
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int
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objc_aligned_size (const char *type)
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{
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int size, align;
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/* Skip the variable name */
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if (*type == '"')
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{
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for (type++; *type++ != '"';)
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/* do nothing */;
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}
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size = objc_sizeof_type (type);
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align = objc_alignof_type (type);
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return ROUND (size, align);
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}
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/*
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The size rounded up to the nearest integral of the wordsize, taken
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to be the size of a void *.
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*/
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int
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objc_promoted_size (const char *type)
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{
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int size, wordsize;
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/* Skip the variable name */
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if (*type == '"')
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||||
{
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for (type++; *type++ != '"';)
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/* do nothing */;
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}
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size = objc_sizeof_type (type);
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wordsize = sizeof (void *);
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return ROUND (size, wordsize);
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}
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/*
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Skip type qualifiers. These may eventually precede typespecs
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occurring in method prototype encodings.
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*/
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inline const char *
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objc_skip_type_qualifiers (const char *type)
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{
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while (*type == _C_CONST
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|| *type == _C_IN
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|| *type == _C_INOUT
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|| *type == _C_OUT
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||||
|| *type == _C_BYCOPY
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||||
|| *type == _C_BYREF
|
||||
|| *type == _C_ONEWAY
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||||
|| *type == _C_GCINVISIBLE)
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||||
{
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type += 1;
|
||||
}
|
||||
return type;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
Skip one typespec element. If the typespec is prepended by type
|
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qualifiers, these are skipped as well.
|
||||
*/
|
||||
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const char *
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objc_skip_typespec (const char *type)
|
||||
{
|
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/* Skip the variable name if any */
|
||||
if (*type == '"')
|
||||
{
|
||||
for (type++; *type++ != '"';)
|
||||
/* do nothing */;
|
||||
}
|
||||
|
||||
type = objc_skip_type_qualifiers (type);
|
||||
|
||||
switch (*type) {
|
||||
|
||||
case _C_ID:
|
||||
/* An id may be annotated by the actual type if it is known
|
||||
with the @"ClassName" syntax */
|
||||
|
||||
if (*++type != '"')
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||||
return type;
|
||||
else
|
||||
{
|
||||
while (*++type != '"')
|
||||
/* do nothing */;
|
||||
return type + 1;
|
||||
}
|
||||
|
||||
/* The following are one character type codes */
|
||||
case _C_CLASS:
|
||||
case _C_SEL:
|
||||
case _C_CHR:
|
||||
case _C_UCHR:
|
||||
case _C_CHARPTR:
|
||||
case _C_ATOM:
|
||||
case _C_SHT:
|
||||
case _C_USHT:
|
||||
case _C_INT:
|
||||
case _C_UINT:
|
||||
case _C_LNG:
|
||||
case _C_ULNG:
|
||||
case _C_LNG_LNG:
|
||||
case _C_ULNG_LNG:
|
||||
case _C_FLT:
|
||||
case _C_DBL:
|
||||
case _C_VOID:
|
||||
case _C_UNDEF:
|
||||
return ++type;
|
||||
break;
|
||||
|
||||
case _C_ARY_B:
|
||||
/* skip digits, typespec and closing ']' */
|
||||
|
||||
while (isdigit ((unsigned char)*++type))
|
||||
;
|
||||
type = objc_skip_typespec (type);
|
||||
if (*type == _C_ARY_E)
|
||||
return ++type;
|
||||
else
|
||||
break; /* error */
|
||||
|
||||
case _C_BFLD:
|
||||
/* The NeXT encoding for bitfields is _still_: b 'size' */
|
||||
while (isdigit ((unsigned char)*++type))
|
||||
; /* skip type and size */
|
||||
return type;
|
||||
|
||||
case _C_STRUCT_B:
|
||||
/* skip name, and elements until closing '}' */
|
||||
|
||||
while (*type != _C_STRUCT_E && *type++ != '=')
|
||||
;
|
||||
while (*type != _C_STRUCT_E)
|
||||
{
|
||||
type = objc_skip_typespec (type);
|
||||
}
|
||||
return ++type;
|
||||
|
||||
case _C_UNION_B:
|
||||
/* skip name, and elements until closing ')' */
|
||||
|
||||
while (*type != _C_UNION_E && *type++ != '=')
|
||||
;
|
||||
while (*type != _C_UNION_E)
|
||||
{
|
||||
type = objc_skip_typespec (type);
|
||||
}
|
||||
return ++type;
|
||||
|
||||
case _C_PTR:
|
||||
/* Just skip the following typespec */
|
||||
|
||||
return objc_skip_typespec (++type);
|
||||
}
|
||||
return 0; /* error */
|
||||
}
|
||||
|
||||
/*
|
||||
Skip an offset as part of a method encoding. This is prepended by a
|
||||
'+' if the argument is passed in registers.
|
||||
*/
|
||||
inline const char *
|
||||
objc_skip_offset (const char *type)
|
||||
{
|
||||
if (*type == '+')
|
||||
type++;
|
||||
while (isdigit ((unsigned char) *++type))
|
||||
;
|
||||
return type;
|
||||
}
|
||||
|
||||
/*
|
||||
Skip an argument specification of a method encoding.
|
||||
*/
|
||||
const char *
|
||||
objc_skip_argspec (const char *type)
|
||||
{
|
||||
type = objc_skip_typespec (type);
|
||||
type = objc_skip_offset (type);
|
||||
return type;
|
||||
}
|
||||
|
||||
#ifdef NEXT_OBJC_USE_NEW_INTERFACE
|
||||
typedef void *PMETH;
|
||||
#else
|
||||
typedef struct objc_method *PMETH;
|
||||
#endif
|
||||
|
||||
/*
|
||||
Return the number of arguments that the method MTH expects.
|
||||
Note that all methods need two implicit arguments `self' and
|
||||
`_cmd'.
|
||||
*/
|
||||
int
|
||||
method_get_number_of_arguments (PMETH mth)
|
||||
{
|
||||
int i = 0;
|
||||
#ifdef NEXT_OBJC_USE_NEW_INTERFACE
|
||||
const char *type = method_getTypeEncoding((Method)mth);
|
||||
#else
|
||||
const char *type = mth->method_types;
|
||||
#endif
|
||||
while (*type)
|
||||
{
|
||||
type = objc_skip_argspec (type);
|
||||
i += 1;
|
||||
}
|
||||
return i - 1;
|
||||
}
|
||||
|
||||
/*
|
||||
Return the size of the argument block needed on the stack to invoke
|
||||
the method MTH. This may be zero, if all arguments are passed in
|
||||
registers.
|
||||
*/
|
||||
|
||||
int
|
||||
method_get_sizeof_arguments (PMETH mth)
|
||||
{
|
||||
#ifdef NEXT_OBJC_USE_NEW_INTERFACE
|
||||
const char *type = objc_skip_typespec (method_getTypeEncoding((Method)mth));
|
||||
#else
|
||||
const char *type = objc_skip_typespec (mth->method_types);
|
||||
#endif
|
||||
return atoi (type);
|
||||
}
|
||||
|
||||
/*
|
||||
Return a pointer to the next argument of ARGFRAME. type points to
|
||||
the last argument. Typical use of this look like:
|
||||
|
||||
{
|
||||
char *datum, *type;
|
||||
for (datum = method_get_first_argument (method, argframe, &type);
|
||||
datum; datum = method_get_next_argument (argframe, &type))
|
||||
{
|
||||
unsigned flags = objc_get_type_qualifiers (type);
|
||||
type = objc_skip_type_qualifiers (type);
|
||||
if (*type != _C_PTR)
|
||||
[portal encodeData: datum ofType: type];
|
||||
else
|
||||
{
|
||||
if ((flags & _F_IN) == _F_IN)
|
||||
[portal encodeData: *(char **) datum ofType: ++type];
|
||||
}
|
||||
}
|
||||
}
|
||||
*/
|
||||
|
||||
char *
|
||||
method_get_next_argument (arglist_t argframe, const char **type)
|
||||
{
|
||||
const char *t = objc_skip_argspec (*type);
|
||||
|
||||
if (*t == '\0')
|
||||
return 0;
|
||||
|
||||
*type = t;
|
||||
t = objc_skip_typespec (t);
|
||||
|
||||
if (*t == '+')
|
||||
return argframe->arg_regs + atoi (++t);
|
||||
else
|
||||
return argframe->arg_ptr + atoi (t);
|
||||
}
|
||||
|
||||
/*
|
||||
Return a pointer to the value of the first argument of the method
|
||||
described in M with the given argumentframe ARGFRAME. The type
|
||||
is returned in TYPE. type must be passed to successive calls of
|
||||
method_get_next_argument.
|
||||
*/
|
||||
char *
|
||||
method_get_first_argument (PMETH m,
|
||||
arglist_t argframe,
|
||||
const char **type)
|
||||
{
|
||||
#ifdef NEXT_OBJC_USE_NEW_INTERFACE
|
||||
*type = method_getTypeEncoding((Method)m);
|
||||
#else
|
||||
*type = m->method_types;
|
||||
#endif
|
||||
|
||||
return method_get_next_argument (argframe, type);
|
||||
}
|
||||
|
||||
/*
|
||||
Return a pointer to the ARGth argument of the method
|
||||
M from the frame ARGFRAME. The type of the argument
|
||||
is returned in the value-result argument TYPE
|
||||
*/
|
||||
|
||||
char *
|
||||
method_get_nth_argument (PMETH m,
|
||||
arglist_t argframe, int arg,
|
||||
const char **type)
|
||||
{
|
||||
#ifdef NEXT_OBJC_USE_NEW_INTERFACE
|
||||
const char *t = objc_skip_argspec (method_getTypeEncoding((Method)m));
|
||||
#else
|
||||
const char *t = objc_skip_argspec (m->method_types);
|
||||
#endif
|
||||
|
||||
if (arg > method_get_number_of_arguments (m))
|
||||
return 0;
|
||||
|
||||
while (arg--)
|
||||
t = objc_skip_argspec (t);
|
||||
|
||||
*type = t;
|
||||
t = objc_skip_typespec (t);
|
||||
|
||||
if (*t == '+')
|
||||
return argframe->arg_regs + atoi (++t);
|
||||
else
|
||||
return argframe->arg_ptr + atoi (t);
|
||||
}
|
||||
|
||||
unsigned
|
||||
objc_get_type_qualifiers (const char *type)
|
||||
{
|
||||
unsigned res = 0;
|
||||
BOOL flag = YES;
|
||||
|
||||
while (flag)
|
||||
switch (*type++)
|
||||
{
|
||||
case _C_CONST: res |= _F_CONST; break;
|
||||
case _C_IN: res |= _F_IN; break;
|
||||
case _C_INOUT: res |= _F_INOUT; break;
|
||||
case _C_OUT: res |= _F_OUT; break;
|
||||
case _C_BYCOPY: res |= _F_BYCOPY; break;
|
||||
case _C_BYREF: res |= _F_BYREF; break;
|
||||
case _C_ONEWAY: res |= _F_ONEWAY; break;
|
||||
case _C_GCINVISIBLE: res |= _F_GCINVISIBLE; break;
|
||||
default: flag = NO;
|
||||
}
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
|
||||
/* The following three functions can be used to determine how a
|
||||
structure is laid out by the compiler. For example:
|
||||
|
||||
struct objc_struct_layout layout;
|
||||
int i;
|
||||
|
||||
objc_layout_structure (type, &layout);
|
||||
while (objc_layout_structure_next_member (&layout))
|
||||
{
|
||||
int position, align;
|
||||
const char *type;
|
||||
|
||||
objc_layout_structure_get_info (&layout, &position, &align, &type);
|
||||
printf ("element %d has offset %d, alignment %d\n",
|
||||
i++, position, align);
|
||||
}
|
||||
|
||||
These functions are used by objc_sizeof_type and objc_alignof_type
|
||||
functions to compute the size and alignment of structures. The
|
||||
previous method of computing the size and alignment of a structure
|
||||
was not working on some architectures, particulary on AIX, and in
|
||||
the presence of bitfields inside the structure. */
|
||||
void
|
||||
objc_layout_structure (const char *type,
|
||||
struct objc_struct_layout *layout)
|
||||
{
|
||||
const char *ntype;
|
||||
|
||||
layout->original_type = ++type;
|
||||
|
||||
/* Skip "<name>=" if any. Avoid embedded structures and unions. */
|
||||
ntype = type;
|
||||
while (*ntype != _C_STRUCT_E && *ntype != _C_STRUCT_B && *ntype != _C_UNION_B
|
||||
&& *ntype++ != '=')
|
||||
/* do nothing */;
|
||||
|
||||
/* If there's a "<name>=", ntype - 1 points to '='; skip the the name */
|
||||
if (*(ntype - 1) == '=')
|
||||
type = ntype;
|
||||
|
||||
layout->type = type;
|
||||
layout->prev_type = NULL;
|
||||
layout->record_size = 0;
|
||||
layout->record_align = MAX (BITS_PER_UNIT, STRUCTURE_SIZE_BOUNDARY);
|
||||
}
|
||||
|
||||
|
||||
BOOL
|
||||
objc_layout_structure_next_member (struct objc_struct_layout *layout)
|
||||
{
|
||||
register int desired_align = 0;
|
||||
|
||||
/* The current type without the type qualifiers */
|
||||
const char *type;
|
||||
|
||||
/* Add the size of the previous field to the size of the record. */
|
||||
if (layout->prev_type)
|
||||
{
|
||||
type = objc_skip_type_qualifiers (layout->prev_type);
|
||||
|
||||
if (*type != _C_BFLD)
|
||||
layout->record_size += objc_sizeof_type (type) * BITS_PER_UNIT;
|
||||
else
|
||||
layout->record_size += atoi (++type);
|
||||
}
|
||||
|
||||
if (*layout->type == _C_STRUCT_E)
|
||||
return NO;
|
||||
|
||||
/* Skip the variable name if any */
|
||||
if (*layout->type == '"')
|
||||
{
|
||||
for (layout->type++; *layout->type++ != '"';)
|
||||
/* do nothing */;
|
||||
}
|
||||
|
||||
type = objc_skip_type_qualifiers (layout->type);
|
||||
|
||||
desired_align = objc_alignof_type (type) * BITS_PER_UNIT;
|
||||
|
||||
/* Record must have at least as much alignment as any field.
|
||||
Otherwise, the alignment of the field within the record
|
||||
is meaningless. */
|
||||
layout->record_align = MAX (layout->record_align, desired_align);
|
||||
|
||||
if (*type == _C_BFLD)
|
||||
{
|
||||
int bfld_size = atoi (++type);
|
||||
int int_align = __alignof__ (int) * BITS_PER_UNIT;
|
||||
/* If this bitfield would traverse a word alignment boundary, push it out
|
||||
to that boundary instead. */
|
||||
if (layout->record_size % int_align
|
||||
&& (layout->record_size / int_align
|
||||
< (layout->record_size + bfld_size - 1) / int_align))
|
||||
layout->record_size = ROUND (layout->record_size, int_align);
|
||||
}
|
||||
else if (layout->record_size % desired_align != 0)
|
||||
{
|
||||
/* We need to skip space before this field.
|
||||
Bump the cumulative size to multiple of field alignment. */
|
||||
layout->record_size = ROUND (layout->record_size, desired_align);
|
||||
}
|
||||
|
||||
/* Jump to the next field in record. */
|
||||
|
||||
layout->prev_type = layout->type;
|
||||
layout->type = objc_skip_typespec (layout->type); /* skip component */
|
||||
|
||||
return YES;
|
||||
}
|
||||
|
||||
|
||||
void objc_layout_finish_structure (struct objc_struct_layout *layout,
|
||||
unsigned int *size,
|
||||
unsigned int *align)
|
||||
{
|
||||
if (layout->type && *layout->type == _C_STRUCT_E)
|
||||
{
|
||||
/* Round the size up to be a multiple of the required alignment */
|
||||
layout->record_size = ROUND (layout->record_size, layout->record_align);
|
||||
layout->type = NULL;
|
||||
}
|
||||
if (size)
|
||||
*size = layout->record_size / BITS_PER_UNIT;
|
||||
if (align)
|
||||
*align = layout->record_align / BITS_PER_UNIT;
|
||||
}
|
||||
|
||||
|
||||
void objc_layout_structure_get_info (struct objc_struct_layout *layout,
|
||||
unsigned int *offset,
|
||||
unsigned int *align,
|
||||
const char **type)
|
||||
{
|
||||
if (offset)
|
||||
*offset = layout->record_size / BITS_PER_UNIT;
|
||||
if (align)
|
||||
*align = layout->record_align / BITS_PER_UNIT;
|
||||
if (type)
|
||||
*type = layout->prev_type;
|
||||
}
|
||||
|
||||
/* A small, portable NSConstantString implementation for use with the NeXT
|
||||
runtime.
|
||||
@ -983,4 +153,5 @@ void objc_constant_string_init (void) {
|
||||
sizeof (_NSConstantStringClassReference));
|
||||
}
|
||||
|
||||
#endif /* #ifdef __NEXT_RUNTIME__ */
|
||||
#endif /*__NEXT_RUNTIME__ */
|
||||
#endif /* _OBJC_NEXT_MAPPING_H_ */
|
@ -0,0 +1,785 @@
|
||||
#ifndef _OBJC_TEST_SUITE_NEXT_ENCODE_ASSIST_IMPL_H_
|
||||
#define _OBJC_TEST_SUITE_NEXT_ENCODE_ASSIST_IMPL_H_
|
||||
|
||||
#ifdef __NEXT_RUNTIME__
|
||||
|
||||
/* Determine which API to use. */
|
||||
#include "next-abi.h"
|
||||
#ifdef NEXT_OBJC_USE_NEW_INTERFACE
|
||||
#include <objc/runtime.h>
|
||||
typedef void * PMETH;
|
||||
#else
|
||||
#include <objc/objc-runtime.h>
|
||||
typedef struct objc_method * PMETH;
|
||||
#endif
|
||||
|
||||
/* ---- */
|
||||
|
||||
#undef MAX
|
||||
#undef MIN
|
||||
#undef ROUND
|
||||
|
||||
#ifdef __cplusplus
|
||||
# define MAX(X, Y) ((X > Y) ? X : Y)
|
||||
# define MIN(X, Y) ((X < Y) ? X : Y)
|
||||
# define ROUND(V, A) (A * ((V + A - 1) / A))
|
||||
#else
|
||||
# define MAX(X, Y) \
|
||||
({ typeof (X) __x = (X), __y = (Y); \
|
||||
(__x > __y ? __x : __y); })
|
||||
# define MIN(X, Y) \
|
||||
({ typeof (X) __x = (X), __y = (Y); \
|
||||
(__x < __y ? __x : __y); })
|
||||
# define ROUND(V, A) \
|
||||
({ typeof (V) __v = (V); typeof (A) __a = (A); \
|
||||
__a * ((__v+__a - 1)/__a); })
|
||||
#endif
|
||||
|
||||
#define BITS_PER_UNIT __CHAR_BIT__
|
||||
typedef struct{ char a; } __small_struct;
|
||||
#define STRUCTURE_SIZE_BOUNDARY (BITS_PER_UNIT * sizeof (__small_struct))
|
||||
|
||||
/*
|
||||
return the size of an object specified by type
|
||||
*/
|
||||
|
||||
int
|
||||
objc_sizeof_type (const char *type)
|
||||
{
|
||||
/* Skip the variable name if any */
|
||||
if (*type == '"')
|
||||
{
|
||||
for (type++; *type++ != '"';)
|
||||
/* do nothing */;
|
||||
}
|
||||
|
||||
switch (*type) {
|
||||
case _C_ID:
|
||||
return sizeof (id);
|
||||
break;
|
||||
|
||||
case _C_CLASS:
|
||||
return sizeof (Class);
|
||||
break;
|
||||
|
||||
case _C_SEL:
|
||||
return sizeof (SEL);
|
||||
break;
|
||||
|
||||
case _C_CHR:
|
||||
return sizeof (char);
|
||||
break;
|
||||
|
||||
case _C_UCHR:
|
||||
return sizeof (unsigned char);
|
||||
break;
|
||||
|
||||
case _C_SHT:
|
||||
return sizeof (short);
|
||||
break;
|
||||
|
||||
case _C_USHT:
|
||||
return sizeof (unsigned short);
|
||||
break;
|
||||
|
||||
case _C_INT:
|
||||
return sizeof (int);
|
||||
break;
|
||||
|
||||
case _C_UINT:
|
||||
return sizeof (unsigned int);
|
||||
break;
|
||||
|
||||
case _C_LNG:
|
||||
return sizeof (long);
|
||||
break;
|
||||
|
||||
case _C_ULNG:
|
||||
return sizeof (unsigned long);
|
||||
break;
|
||||
|
||||
case _C_LNG_LNG:
|
||||
return sizeof (long long);
|
||||
break;
|
||||
|
||||
case _C_ULNG_LNG:
|
||||
return sizeof (unsigned long long);
|
||||
break;
|
||||
|
||||
case _C_FLT:
|
||||
return sizeof (float);
|
||||
break;
|
||||
|
||||
case _C_DBL:
|
||||
return sizeof (double);
|
||||
break;
|
||||
|
||||
case _C_PTR:
|
||||
case _C_ATOM:
|
||||
case _C_CHARPTR:
|
||||
return sizeof (char *);
|
||||
break;
|
||||
|
||||
case _C_ARY_B:
|
||||
{
|
||||
int len = atoi (type + 1);
|
||||
while (isdigit ((unsigned char)*++type))
|
||||
;
|
||||
return len * objc_aligned_size (type);
|
||||
}
|
||||
break;
|
||||
|
||||
case _C_BFLD:
|
||||
{
|
||||
/* The NeXT encoding of bitfields is _still_: b 'size' */
|
||||
int size = atoi (type + 1);
|
||||
/* Return an upper bound on byte size */
|
||||
return (size + BITS_PER_UNIT - 1) / BITS_PER_UNIT;
|
||||
}
|
||||
|
||||
case _C_STRUCT_B:
|
||||
{
|
||||
struct objc_struct_layout layout;
|
||||
unsigned int size;
|
||||
|
||||
objc_layout_structure (type, &layout);
|
||||
while (objc_layout_structure_next_member (&layout))
|
||||
/* do nothing */ ;
|
||||
objc_layout_finish_structure (&layout, &size, NULL);
|
||||
|
||||
return size;
|
||||
}
|
||||
|
||||
case _C_UNION_B:
|
||||
{
|
||||
int max_size = 0;
|
||||
while (*type != _C_UNION_E && *type++ != '=')
|
||||
/* do nothing */;
|
||||
while (*type != _C_UNION_E)
|
||||
{
|
||||
/* Skip the variable name if any */
|
||||
if (*type == '"')
|
||||
{
|
||||
for (type++; *type++ != '"';)
|
||||
/* do nothing */;
|
||||
}
|
||||
max_size = MAX (max_size, objc_sizeof_type (type));
|
||||
type = objc_skip_typespec (type);
|
||||
}
|
||||
return max_size;
|
||||
}
|
||||
}
|
||||
return 0; /* error */
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
Return the alignment of an object specified by type
|
||||
*/
|
||||
|
||||
int
|
||||
objc_alignof_type (const char *type)
|
||||
{
|
||||
/* Skip the variable name if any */
|
||||
if (*type == '"')
|
||||
{
|
||||
for (type++; *type++ != '"';)
|
||||
/* do nothing */;
|
||||
}
|
||||
switch (*type) {
|
||||
case _C_ID:
|
||||
return __alignof__ (id);
|
||||
break;
|
||||
|
||||
case _C_CLASS:
|
||||
return __alignof__ (Class);
|
||||
break;
|
||||
|
||||
case _C_SEL:
|
||||
return __alignof__ (SEL);
|
||||
break;
|
||||
|
||||
case _C_CHR:
|
||||
return __alignof__ (char);
|
||||
break;
|
||||
|
||||
case _C_UCHR:
|
||||
return __alignof__ (unsigned char);
|
||||
break;
|
||||
|
||||
case _C_SHT:
|
||||
return __alignof__ (short);
|
||||
break;
|
||||
|
||||
case _C_USHT:
|
||||
return __alignof__ (unsigned short);
|
||||
break;
|
||||
|
||||
case _C_INT:
|
||||
case _C_BFLD: /* This is for the NeXT only */
|
||||
return __alignof__ (int);
|
||||
break;
|
||||
|
||||
case _C_UINT:
|
||||
return __alignof__ (unsigned int);
|
||||
break;
|
||||
|
||||
case _C_LNG:
|
||||
return __alignof__ (long);
|
||||
break;
|
||||
|
||||
case _C_ULNG:
|
||||
return __alignof__ (unsigned long);
|
||||
break;
|
||||
|
||||
case _C_LNG_LNG:
|
||||
return __alignof__ (long long);
|
||||
break;
|
||||
|
||||
case _C_ULNG_LNG:
|
||||
return __alignof__ (unsigned long long);
|
||||
break;
|
||||
|
||||
case _C_FLT:
|
||||
return __alignof__ (float);
|
||||
break;
|
||||
|
||||
case _C_DBL:
|
||||
return __alignof__ (double);
|
||||
break;
|
||||
|
||||
case _C_PTR:
|
||||
case _C_ATOM:
|
||||
case _C_CHARPTR:
|
||||
return __alignof__ (char *);
|
||||
break;
|
||||
|
||||
case _C_ARY_B:
|
||||
while (isdigit ((unsigned char)*++type))
|
||||
/* do nothing */;
|
||||
return objc_alignof_type (type);
|
||||
|
||||
case _C_STRUCT_B:
|
||||
{
|
||||
struct objc_struct_layout layout;
|
||||
unsigned int align;
|
||||
|
||||
objc_layout_structure (type, &layout);
|
||||
while (objc_layout_structure_next_member (&layout))
|
||||
/* do nothing */;
|
||||
objc_layout_finish_structure (&layout, NULL, &align);
|
||||
|
||||
return align;
|
||||
}
|
||||
|
||||
case _C_UNION_B:
|
||||
{
|
||||
int maxalign = 0;
|
||||
while (*type != _C_UNION_E && *type++ != '=')
|
||||
/* do nothing */;
|
||||
while (*type != _C_UNION_E)
|
||||
{
|
||||
/* Skip the variable name if any */
|
||||
if (*type == '"')
|
||||
{
|
||||
for (type++; *type++ != '"';)
|
||||
/* do nothing */;
|
||||
}
|
||||
maxalign = MAX (maxalign, objc_alignof_type (type));
|
||||
type = objc_skip_typespec (type);
|
||||
}
|
||||
return maxalign;
|
||||
}
|
||||
}
|
||||
return 0; /* error */
|
||||
}
|
||||
|
||||
/*
|
||||
The aligned size if the size rounded up to the nearest alignment.
|
||||
*/
|
||||
|
||||
int
|
||||
objc_aligned_size (const char *type)
|
||||
{
|
||||
int size, align;
|
||||
|
||||
/* Skip the variable name */
|
||||
if (*type == '"')
|
||||
{
|
||||
for (type++; *type++ != '"';)
|
||||
/* do nothing */;
|
||||
}
|
||||
|
||||
size = objc_sizeof_type (type);
|
||||
align = objc_alignof_type (type);
|
||||
|
||||
return ROUND (size, align);
|
||||
}
|
||||
|
||||
/*
|
||||
The size rounded up to the nearest integral of the wordsize, taken
|
||||
to be the size of a void *.
|
||||
*/
|
||||
|
||||
int
|
||||
objc_promoted_size (const char *type)
|
||||
{
|
||||
int size, wordsize;
|
||||
|
||||
/* Skip the variable name */
|
||||
if (*type == '"')
|
||||
{
|
||||
for (type++; *type++ != '"';)
|
||||
/* do nothing */;
|
||||
}
|
||||
|
||||
size = objc_sizeof_type (type);
|
||||
wordsize = sizeof (void *);
|
||||
|
||||
return ROUND (size, wordsize);
|
||||
}
|
||||
|
||||
/*
|
||||
Skip type qualifiers. These may eventually precede typespecs
|
||||
occurring in method prototype encodings.
|
||||
*/
|
||||
|
||||
const char *
|
||||
objc_skip_type_qualifiers (const char *type)
|
||||
{
|
||||
while (*type == _C_CONST
|
||||
|| *type == _C_IN
|
||||
|| *type == _C_INOUT
|
||||
|| *type == _C_OUT
|
||||
|| *type == _C_BYCOPY
|
||||
|| *type == _C_BYREF
|
||||
|| *type == _C_ONEWAY
|
||||
|| *type == _C_GCINVISIBLE)
|
||||
{
|
||||
type += 1;
|
||||
}
|
||||
return type;
|
||||
}
|
||||
|
||||
/*
|
||||
Skip one typespec element. If the typespec is prepended by type
|
||||
qualifiers, these are skipped as well.
|
||||
*/
|
||||
|
||||
const char *
|
||||
objc_skip_typespec (const char *type)
|
||||
{
|
||||
/* Skip the variable name if any */
|
||||
if (*type == '"')
|
||||
{
|
||||
for (type++; *type++ != '"';)
|
||||
/* do nothing */;
|
||||
}
|
||||
|
||||
type = objc_skip_type_qualifiers (type);
|
||||
|
||||
switch (*type) {
|
||||
|
||||
case _C_ID:
|
||||
/* An id may be annotated by the actual type if it is known
|
||||
with the @"ClassName" syntax */
|
||||
|
||||
if (*++type != '"')
|
||||
return type;
|
||||
else
|
||||
{
|
||||
while (*++type != '"')
|
||||
/* do nothing */;
|
||||
return type + 1;
|
||||
}
|
||||
|
||||
/* The following are one character type codes */
|
||||
case _C_CLASS:
|
||||
case _C_SEL:
|
||||
case _C_CHR:
|
||||
case _C_UCHR:
|
||||
case _C_CHARPTR:
|
||||
case _C_ATOM:
|
||||
case _C_SHT:
|
||||
case _C_USHT:
|
||||
case _C_INT:
|
||||
case _C_UINT:
|
||||
case _C_LNG:
|
||||
case _C_ULNG:
|
||||
case _C_LNG_LNG:
|
||||
case _C_ULNG_LNG:
|
||||
case _C_FLT:
|
||||
case _C_DBL:
|
||||
case _C_VOID:
|
||||
case _C_UNDEF:
|
||||
return ++type;
|
||||
break;
|
||||
|
||||
case _C_ARY_B:
|
||||
/* skip digits, typespec and closing ']' */
|
||||
|
||||
while (isdigit ((unsigned char)*++type))
|
||||
;
|
||||
type = objc_skip_typespec (type);
|
||||
if (*type == _C_ARY_E)
|
||||
return ++type;
|
||||
else
|
||||
break; /* error */
|
||||
|
||||
case _C_BFLD:
|
||||
/* The NeXT encoding for bitfields is _still_: b 'size' */
|
||||
while (isdigit ((unsigned char)*++type))
|
||||
; /* skip type and size */
|
||||
return type;
|
||||
|
||||
case _C_STRUCT_B:
|
||||
/* skip name, and elements until closing '}' */
|
||||
|
||||
while (*type != _C_STRUCT_E && *type++ != '=')
|
||||
;
|
||||
while (*type != _C_STRUCT_E)
|
||||
{
|
||||
type = objc_skip_typespec (type);
|
||||
}
|
||||
return ++type;
|
||||
|
||||
case _C_UNION_B:
|
||||
/* skip name, and elements until closing ')' */
|
||||
|
||||
while (*type != _C_UNION_E && *type++ != '=')
|
||||
;
|
||||
while (*type != _C_UNION_E)
|
||||
{
|
||||
type = objc_skip_typespec (type);
|
||||
}
|
||||
return ++type;
|
||||
|
||||
case _C_PTR:
|
||||
/* Just skip the following typespec */
|
||||
|
||||
return objc_skip_typespec (++type);
|
||||
}
|
||||
return 0; /* error */
|
||||
}
|
||||
|
||||
/*
|
||||
Skip an offset as part of a method encoding. This is prepended by a
|
||||
'+' if the argument is passed in registers.
|
||||
*/
|
||||
const char *
|
||||
objc_skip_offset (const char *type)
|
||||
{
|
||||
if (*type == '+')
|
||||
type++;
|
||||
while (isdigit ((unsigned char) *++type))
|
||||
;
|
||||
return type;
|
||||
}
|
||||
|
||||
/*
|
||||
Skip an argument specification of a method encoding.
|
||||
*/
|
||||
const char *
|
||||
objc_skip_argspec (const char *type)
|
||||
{
|
||||
type = objc_skip_typespec (type);
|
||||
type = objc_skip_offset (type);
|
||||
return type;
|
||||
}
|
||||
/*
|
||||
Return the number of arguments that the method MTH expects.
|
||||
Note that all methods need two implicit arguments `self' and
|
||||
`_cmd'.
|
||||
*/
|
||||
int
|
||||
method_get_number_of_arguments (PMETH mth)
|
||||
{
|
||||
int i = 0;
|
||||
#ifdef NEXT_OBJC_USE_NEW_INTERFACE
|
||||
const char *type = method_getTypeEncoding((Method)mth);
|
||||
#else
|
||||
const char *type = mth->method_types;
|
||||
#endif
|
||||
while (*type)
|
||||
{
|
||||
type = objc_skip_argspec (type);
|
||||
i += 1;
|
||||
}
|
||||
return i - 1;
|
||||
}
|
||||
|
||||
/*
|
||||
Return the size of the argument block needed on the stack to invoke
|
||||
the method MTH. This may be zero, if all arguments are passed in
|
||||
registers.
|
||||
*/
|
||||
|
||||
int
|
||||
method_get_sizeof_arguments (PMETH mth)
|
||||
{
|
||||
#ifdef NEXT_OBJC_USE_NEW_INTERFACE
|
||||
const char *type = objc_skip_typespec (method_getTypeEncoding((Method)mth));
|
||||
#else
|
||||
const char *type = objc_skip_typespec (mth->method_types);
|
||||
#endif
|
||||
return atoi (type);
|
||||
}
|
||||
|
||||
/*
|
||||
Return a pointer to the next argument of ARGFRAME. type points to
|
||||
the last argument. Typical use of this look like:
|
||||
|
||||
{
|
||||
char *datum, *type;
|
||||
for (datum = method_get_first_argument (method, argframe, &type);
|
||||
datum; datum = method_get_next_argument (argframe, &type))
|
||||
{
|
||||
unsigned flags = objc_get_type_qualifiers (type);
|
||||
type = objc_skip_type_qualifiers (type);
|
||||
if (*type != _C_PTR)
|
||||
[portal encodeData: datum ofType: type];
|
||||
else
|
||||
{
|
||||
if ((flags & _F_IN) == _F_IN)
|
||||
[portal encodeData: *(char **) datum ofType: ++type];
|
||||
}
|
||||
}
|
||||
}
|
||||
*/
|
||||
|
||||
char *
|
||||
method_get_next_argument (arglist_t argframe, const char **type)
|
||||
{
|
||||
const char *t = objc_skip_argspec (*type);
|
||||
|
||||
if (*t == '\0')
|
||||
return 0;
|
||||
|
||||
*type = t;
|
||||
t = objc_skip_typespec (t);
|
||||
|
||||
if (*t == '+')
|
||||
return argframe->arg_regs + atoi (++t);
|
||||
else
|
||||
return argframe->arg_ptr + atoi (t);
|
||||
}
|
||||
|
||||
/*
|
||||
Return a pointer to the value of the first argument of the method
|
||||
described in M with the given argumentframe ARGFRAME. The type
|
||||
is returned in TYPE. type must be passed to successive calls of
|
||||
method_get_next_argument.
|
||||
*/
|
||||
char *
|
||||
method_get_first_argument (PMETH m,
|
||||
arglist_t argframe,
|
||||
const char **type)
|
||||
{
|
||||
#ifdef NEXT_OBJC_USE_NEW_INTERFACE
|
||||
*type = method_getTypeEncoding((Method)m);
|
||||
#else
|
||||
*type = m->method_types;
|
||||
#endif
|
||||
|
||||
return method_get_next_argument (argframe, type);
|
||||
}
|
||||
|
||||
/*
|
||||
Return a pointer to the ARGth argument of the method
|
||||
M from the frame ARGFRAME. The type of the argument
|
||||
is returned in the value-result argument TYPE
|
||||
*/
|
||||
|
||||
char *
|
||||
method_get_nth_argument (PMETH m,
|
||||
arglist_t argframe, int arg,
|
||||
const char **type)
|
||||
{
|
||||
#ifdef NEXT_OBJC_USE_NEW_INTERFACE
|
||||
const char *t = objc_skip_argspec (method_getTypeEncoding((Method)m));
|
||||
#else
|
||||
const char *t = objc_skip_argspec (m->method_types);
|
||||
#endif
|
||||
|
||||
if (arg > method_get_number_of_arguments (m))
|
||||
return 0;
|
||||
|
||||
while (arg--)
|
||||
t = objc_skip_argspec (t);
|
||||
|
||||
*type = t;
|
||||
t = objc_skip_typespec (t);
|
||||
|
||||
if (*t == '+')
|
||||
return argframe->arg_regs + atoi (++t);
|
||||
else
|
||||
return argframe->arg_ptr + atoi (t);
|
||||
}
|
||||
|
||||
unsigned
|
||||
objc_get_type_qualifiers (const char *type)
|
||||
{
|
||||
unsigned res = 0;
|
||||
BOOL flag = YES;
|
||||
|
||||
while (flag)
|
||||
switch (*type++)
|
||||
{
|
||||
case _C_CONST: res |= _F_CONST; break;
|
||||
case _C_IN: res |= _F_IN; break;
|
||||
case _C_INOUT: res |= _F_INOUT; break;
|
||||
case _C_OUT: res |= _F_OUT; break;
|
||||
case _C_BYCOPY: res |= _F_BYCOPY; break;
|
||||
case _C_BYREF: res |= _F_BYREF; break;
|
||||
case _C_ONEWAY: res |= _F_ONEWAY; break;
|
||||
case _C_GCINVISIBLE: res |= _F_GCINVISIBLE; break;
|
||||
default: flag = NO;
|
||||
}
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
|
||||
/* The following three functions can be used to determine how a
|
||||
structure is laid out by the compiler. For example:
|
||||
|
||||
struct objc_struct_layout layout;
|
||||
int i;
|
||||
|
||||
objc_layout_structure (type, &layout);
|
||||
while (objc_layout_structure_next_member (&layout))
|
||||
{
|
||||
int position, align;
|
||||
const char *type;
|
||||
|
||||
objc_layout_structure_get_info (&layout, &position, &align, &type);
|
||||
printf ("element %d has offset %d, alignment %d\n",
|
||||
i++, position, align);
|
||||
}
|
||||
|
||||
These functions are used by objc_sizeof_type and objc_alignof_type
|
||||
functions to compute the size and alignment of structures. The
|
||||
previous method of computing the size and alignment of a structure
|
||||
was not working on some architectures, particulary on AIX, and in
|
||||
the presence of bitfields inside the structure. */
|
||||
void
|
||||
objc_layout_structure (const char *type,
|
||||
struct objc_struct_layout *layout)
|
||||
{
|
||||
const char *ntype;
|
||||
|
||||
layout->original_type = ++type;
|
||||
|
||||
/* Skip "<name>=" if any. Avoid embedded structures and unions. */
|
||||
ntype = type;
|
||||
while (*ntype != _C_STRUCT_E && *ntype != _C_STRUCT_B && *ntype != _C_UNION_B
|
||||
&& *ntype++ != '=')
|
||||
/* do nothing */;
|
||||
|
||||
/* If there's a "<name>=", ntype - 1 points to '='; skip the the name */
|
||||
if (*(ntype - 1) == '=')
|
||||
type = ntype;
|
||||
|
||||
layout->type = type;
|
||||
layout->prev_type = NULL;
|
||||
layout->record_size = 0;
|
||||
layout->record_align = MAX (BITS_PER_UNIT, STRUCTURE_SIZE_BOUNDARY);
|
||||
}
|
||||
|
||||
BOOL
|
||||
objc_layout_structure_next_member (struct objc_struct_layout *layout)
|
||||
{
|
||||
register int desired_align = 0;
|
||||
|
||||
/* The current type without the type qualifiers */
|
||||
const char *type;
|
||||
|
||||
/* Add the size of the previous field to the size of the record. */
|
||||
if (layout->prev_type)
|
||||
{
|
||||
type = objc_skip_type_qualifiers (layout->prev_type);
|
||||
|
||||
if (*type != _C_BFLD)
|
||||
layout->record_size += objc_sizeof_type (type) * BITS_PER_UNIT;
|
||||
else
|
||||
layout->record_size += atoi (++type);
|
||||
}
|
||||
|
||||
if (*layout->type == _C_STRUCT_E)
|
||||
return NO;
|
||||
|
||||
/* Skip the variable name if any */
|
||||
if (*layout->type == '"')
|
||||
{
|
||||
for (layout->type++; *layout->type++ != '"';)
|
||||
/* do nothing */;
|
||||
}
|
||||
|
||||
type = objc_skip_type_qualifiers (layout->type);
|
||||
|
||||
desired_align = objc_alignof_type (type) * BITS_PER_UNIT;
|
||||
|
||||
/* Record must have at least as much alignment as any field.
|
||||
Otherwise, the alignment of the field within the record
|
||||
is meaningless. */
|
||||
layout->record_align = MAX (layout->record_align, desired_align);
|
||||
|
||||
if (*type == _C_BFLD)
|
||||
{
|
||||
int bfld_size = atoi (++type);
|
||||
int int_align = __alignof__ (int) * BITS_PER_UNIT;
|
||||
/* If this bitfield would traverse a word alignment boundary, push it out
|
||||
to that boundary instead. */
|
||||
if (layout->record_size % int_align
|
||||
&& (layout->record_size / int_align
|
||||
< (layout->record_size + bfld_size - 1) / int_align))
|
||||
layout->record_size = ROUND (layout->record_size, int_align);
|
||||
}
|
||||
else if (layout->record_size % desired_align != 0)
|
||||
{
|
||||
/* We need to skip space before this field.
|
||||
Bump the cumulative size to multiple of field alignment. */
|
||||
layout->record_size = ROUND (layout->record_size, desired_align);
|
||||
}
|
||||
|
||||
/* Jump to the next field in record. */
|
||||
|
||||
layout->prev_type = layout->type;
|
||||
layout->type = objc_skip_typespec (layout->type); /* skip component */
|
||||
|
||||
return YES;
|
||||
}
|
||||
|
||||
|
||||
void objc_layout_finish_structure (struct objc_struct_layout *layout,
|
||||
unsigned int *size,
|
||||
unsigned int *align)
|
||||
{
|
||||
if (layout->type && *layout->type == _C_STRUCT_E)
|
||||
{
|
||||
/* Round the size up to be a multiple of the required alignment */
|
||||
layout->record_size = ROUND (layout->record_size, layout->record_align);
|
||||
layout->type = NULL;
|
||||
}
|
||||
if (size)
|
||||
*size = layout->record_size / BITS_PER_UNIT;
|
||||
if (align)
|
||||
*align = layout->record_align / BITS_PER_UNIT;
|
||||
}
|
||||
|
||||
|
||||
void objc_layout_structure_get_info (struct objc_struct_layout *layout,
|
||||
unsigned int *offset,
|
||||
unsigned int *align,
|
||||
const char **type)
|
||||
{
|
||||
if (offset)
|
||||
*offset = layout->record_size / BITS_PER_UNIT;
|
||||
if (align)
|
||||
*align = layout->record_align / BITS_PER_UNIT;
|
||||
if (type)
|
||||
*type = layout->prev_type;
|
||||
}
|
||||
|
||||
#endif /* __NEXT_RUNTIME__ */
|
||||
#endif /* _OBJC_TEST_SUITE_NEXT_ENCODE_ASSIST_IMPL_H_ */
|
@ -0,0 +1,97 @@
|
||||
#ifndef _OBJC_TEST_SUITE_NEXT_ENCODE_ASSIST_H_
|
||||
#define _OBJC_TEST_SUITE_NEXT_ENCODE_ASSIST_H_
|
||||
|
||||
#ifdef __NEXT_RUNTIME__
|
||||
|
||||
#include "next-abi.h"
|
||||
#ifdef NEXT_OBJC_USE_NEW_INTERFACE
|
||||
#include <objc/runtime.h>
|
||||
typedef void * PMETH;
|
||||
#else
|
||||
#include <objc/objc-runtime.h>
|
||||
typedef struct objc_method * PMETH;
|
||||
#endif
|
||||
|
||||
/* The NeXT headers do not define NULL. */
|
||||
#ifndef NULL
|
||||
#define NULL 0
|
||||
#endif
|
||||
|
||||
/* The NeXT runtimes do not include these functions (at least not through
|
||||
any public API). They are required for the objc/execute/bf-* and bycopy-3. */
|
||||
|
||||
/* Not sure why the following are missing from NeXT objc headers... */
|
||||
|
||||
#ifndef _C_LNG_LNG
|
||||
#define _C_LNG_LNG 'q'
|
||||
#endif
|
||||
#ifndef _C_ULNG_LNG
|
||||
#define _C_ULNG_LNG 'Q'
|
||||
#endif
|
||||
#ifndef _C_ATOM
|
||||
#define _C_ATOM '%'
|
||||
#endif
|
||||
#ifndef _C_BOOL
|
||||
#define _C_BOOL 'B'
|
||||
#endif
|
||||
|
||||
#define _C_CONST 'r'
|
||||
#define _C_IN 'n'
|
||||
#define _C_INOUT 'N'
|
||||
#define _C_OUT 'o'
|
||||
#define _C_BYCOPY 'O'
|
||||
#define _C_BYREF 'R'
|
||||
#define _C_ONEWAY 'V'
|
||||
#define _C_GCINVISIBLE '!'
|
||||
|
||||
#define _F_CONST 0x01
|
||||
#define _F_IN 0x01
|
||||
#define _F_OUT 0x02
|
||||
#define _F_INOUT 0x03
|
||||
#define _F_BYCOPY 0x04
|
||||
#define _F_BYREF 0x08
|
||||
#define _F_ONEWAY 0x10
|
||||
#define _F_GCINVISIBLE 0x20
|
||||
|
||||
/* Functions available in the GNU runtime, emulated here for testing with NeXT. */
|
||||
|
||||
struct objc_struct_layout
|
||||
{
|
||||
const char *original_type;
|
||||
const char *type;
|
||||
const char *prev_type;
|
||||
unsigned int record_size;
|
||||
unsigned int record_align;
|
||||
};
|
||||
|
||||
typedef union arglist {
|
||||
char *arg_ptr;
|
||||
char arg_regs[sizeof (char*)];
|
||||
} *arglist_t; /* argument frame */
|
||||
|
||||
void objc_layout_structure_get_info (struct objc_struct_layout *,unsigned int *,
|
||||
unsigned int *, const char **);
|
||||
void objc_layout_structure (const char *, struct objc_struct_layout *);
|
||||
BOOL objc_layout_structure_next_member (struct objc_struct_layout *);
|
||||
void objc_layout_finish_structure (struct objc_struct_layout *, unsigned int *,
|
||||
unsigned int *);
|
||||
|
||||
int objc_sizeof_type (const char *);
|
||||
int objc_alignof_type (const char *);
|
||||
int objc_aligned_size (const char *);
|
||||
int objc_promoted_size (const char *);
|
||||
|
||||
unsigned objc_get_type_qualifiers (const char *);
|
||||
const char *objc_skip_type_qualifiers (const char *);
|
||||
const char *objc_skip_typespec (const char *);
|
||||
const char *objc_skip_offset (const char *);
|
||||
const char *objc_skip_argspec (const char *);
|
||||
|
||||
int method_get_number_of_arguments (PMETH);
|
||||
int method_get_sizeof_arguments (PMETH);
|
||||
char *method_get_next_argument (arglist_t , const char **);
|
||||
char *method_get_first_argument (PMETH, arglist_t, const char **);
|
||||
char *method_get_nth_argument (PMETH, arglist_t, int, const char **);
|
||||
|
||||
#endif /* __NEXT_RUNTIME__ */
|
||||
#endif /* _OBJC_TEST_SUITE_NEXT_ENCODE_ASSIST_H_ */
|
@ -1,5 +1,4 @@
|
||||
#import "../../objc-obj-c++-shared/Object1.h"
|
||||
#include <objc/objc-api.h>
|
||||
#include <objc/objc.h>
|
||||
|
||||
@interface MyObject
|
||||
{
|
||||
|
@ -1,6 +1,4 @@
|
||||
#import "../../objc-obj-c++-shared/Object1.h"
|
||||
#include <objc/objc.h>
|
||||
#include <objc/objc-api.h>
|
||||
|
||||
@interface MyObject
|
||||
{
|
||||
|
@ -1,6 +1,4 @@
|
||||
#import "../../objc-obj-c++-shared/Object1.h"
|
||||
#include <objc/objc.h>
|
||||
#include <objc/objc-api.h>
|
||||
|
||||
@interface MyObject
|
||||
{
|
||||
|
@ -1,6 +1,4 @@
|
||||
#import "../../objc-obj-c++-shared/Object1.h"
|
||||
#include <objc/objc.h>
|
||||
#include <objc/objc-api.h>
|
||||
|
||||
@interface MyObject
|
||||
{
|
||||
|
@ -1,6 +1,4 @@
|
||||
#import "../../objc-obj-c++-shared/Object1.h"
|
||||
#include <objc/objc.h>
|
||||
#include <objc/objc-api.h>
|
||||
|
||||
@interface MyObject
|
||||
{
|
||||
|
@ -1,6 +1,4 @@
|
||||
#import "../../objc-obj-c++-shared/Object1.h"
|
||||
#include <objc/objc.h>
|
||||
#include <objc/objc-api.h>
|
||||
|
||||
@interface MyObject
|
||||
{
|
||||
|
@ -1,6 +1,4 @@
|
||||
#import "../../objc-obj-c++-shared/Object1.h"
|
||||
#include <objc/objc.h>
|
||||
#include <objc/objc-api.h>
|
||||
|
||||
@interface MyObject
|
||||
{
|
||||
|
@ -1,6 +1,4 @@
|
||||
#import "../../objc-obj-c++-shared/Object1.h"
|
||||
#include <objc/objc.h>
|
||||
#include <objc/objc-api.h>
|
||||
|
||||
struct A {
|
||||
int i;
|
||||
|
@ -1,6 +1,4 @@
|
||||
#import "../../objc-obj-c++-shared/Object1.h"
|
||||
#include <objc/objc.h>
|
||||
#include <objc/objc-api.h>
|
||||
|
||||
struct A {
|
||||
int i;
|
||||
|
@ -1,6 +1,4 @@
|
||||
#import "../../objc-obj-c++-shared/Object1.h"
|
||||
#include <objc/objc.h>
|
||||
#include <objc/objc-api.h>
|
||||
|
||||
@interface MyObject
|
||||
{
|
||||
|
@ -1,6 +1,4 @@
|
||||
#import "../../objc-obj-c++-shared/Object1.h"
|
||||
#include <objc/objc.h>
|
||||
#include <objc/objc-api.h>
|
||||
|
||||
@interface MyObject
|
||||
{
|
||||
|
@ -1,6 +1,4 @@
|
||||
#import "../../objc-obj-c++-shared/Object1.h"
|
||||
#include <objc/objc.h>
|
||||
#include <objc/objc-api.h>
|
||||
|
||||
@interface MyObject
|
||||
{
|
||||
|
@ -1,6 +1,4 @@
|
||||
#import "../../objc-obj-c++-shared/Object1.h"
|
||||
#include <objc/objc.h>
|
||||
#include <objc/objc-api.h>
|
||||
|
||||
@interface MyObject
|
||||
{
|
||||
|
@ -1,6 +1,4 @@
|
||||
#import "../../objc-obj-c++-shared/Object1.h"
|
||||
#include <objc/objc.h>
|
||||
#include <objc/objc-api.h>
|
||||
|
||||
typedef enum
|
||||
{
|
||||
|
@ -1,6 +1,4 @@
|
||||
#import "../../objc-obj-c++-shared/Object1.h"
|
||||
#include <objc/objc.h>
|
||||
#include <objc/objc-api.h>
|
||||
|
||||
@interface MyObject
|
||||
{
|
||||
|
@ -1,6 +1,4 @@
|
||||
#import "../../objc-obj-c++-shared/Object1.h"
|
||||
#include <objc/objc.h>
|
||||
#include <objc/objc-api.h>
|
||||
|
||||
@interface MyObject
|
||||
{
|
||||
|
@ -1,6 +1,4 @@
|
||||
#import "../../objc-obj-c++-shared/Object1.h"
|
||||
#include <objc/objc.h>
|
||||
#include <objc/objc-api.h>
|
||||
|
||||
@interface MyObject
|
||||
{
|
||||
|
@ -1,6 +1,4 @@
|
||||
#import "../../objc-obj-c++-shared/Object1.h"
|
||||
#include <objc/objc.h>
|
||||
#include <objc/objc-api.h>
|
||||
|
||||
@interface MyObject
|
||||
{
|
||||
|
@ -1,6 +1,4 @@
|
||||
#import "../../objc-obj-c++-shared/Object1.h"
|
||||
#include <objc/objc.h>
|
||||
#include <objc/objc-api.h>
|
||||
|
||||
@interface MyObject
|
||||
{
|
||||
|
@ -1,6 +1,4 @@
|
||||
#import "../../objc-obj-c++-shared/Object1.h"
|
||||
#include <objc/objc.h>
|
||||
#include <objc/objc-api.h>
|
||||
|
||||
@interface MyObject
|
||||
{
|
||||
|
@ -1,6 +1,4 @@
|
||||
#import "../../objc-obj-c++-shared/Object1.h"
|
||||
#include <objc/objc.h>
|
||||
#include <objc/objc-api.h>
|
||||
|
||||
@interface MyObject
|
||||
{
|
||||
|
@ -1,7 +1,14 @@
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include "../../objc-obj-c++-shared/next-mapping.h"
|
||||
|
||||
#ifndef __NEXT_RUNTIME__
|
||||
#include <objc/encoding.h>
|
||||
#else
|
||||
/* The following header, together with the implementation included below,
|
||||
emulate functionality provided by the GNU runtime but not available from
|
||||
the NeXT runtime. */
|
||||
#include "../../objc-obj-c++-shared/objc-test-suite-next-encode-assist.h"
|
||||
#define objc_get_class(C) objc_getClass(C)
|
||||
#endif
|
||||
|
||||
void print_ivars (Class class)
|
||||
@ -63,7 +70,6 @@ int main ()
|
||||
};
|
||||
int size1, size2;
|
||||
Class class = objc_get_class ("MyObject");
|
||||
|
||||
printf ("type = %s\n", @encode (struct class_vars));
|
||||
print_ivars (class);
|
||||
|
||||
@ -77,3 +83,5 @@ int main ()
|
||||
|
||||
exit (0);
|
||||
}
|
||||
|
||||
#include "../../objc-obj-c++-shared/objc-test-suite-next-encode-assist-impl.h"
|
||||
|
@ -9,8 +9,10 @@
|
||||
* interfere with what we are testing, which is that the `bycopy'
|
||||
* keyword generates the _F_BYCOPY qualifier for the return type. */
|
||||
|
||||
#include "../../objc-obj-c++-shared/next-mapping.h"
|
||||
#include "../../objc-obj-c++-shared/Protocol1.h"
|
||||
extern void exit (int) __attribute__ ((noreturn));
|
||||
extern int printf (const char *, ...);
|
||||
|
||||
#include <objc/Protocol.h>
|
||||
|
||||
#ifndef __NEXT_RUNTIME__
|
||||
#include <objc/encoding.h>
|
||||
@ -31,6 +33,11 @@
|
||||
}
|
||||
@end
|
||||
|
||||
/* The following header, together with the implementation included below,
|
||||
emulate functionality provided by the GNU runtime but not available from
|
||||
the NeXT runtime. */
|
||||
#include "../../objc-obj-c++-shared/objc-test-suite-next-encode-assist.h"
|
||||
|
||||
int main (void)
|
||||
{
|
||||
struct objc_method_description *method;
|
||||
@ -69,3 +76,28 @@ int main (void)
|
||||
/* Else, happy end */
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef __NEXT_RUNTIME__
|
||||
unsigned
|
||||
objc_get_type_qualifiers (const char *type)
|
||||
{
|
||||
unsigned res = 0;
|
||||
BOOL flag = YES;
|
||||
|
||||
while (flag)
|
||||
switch (*type++)
|
||||
{
|
||||
case _C_CONST: res |= _F_CONST; break;
|
||||
case _C_IN: res |= _F_IN; break;
|
||||
case _C_INOUT: res |= _F_INOUT; break;
|
||||
case _C_OUT: res |= _F_OUT; break;
|
||||
case _C_BYCOPY: res |= _F_BYCOPY; break;
|
||||
case _C_BYREF: res |= _F_BYREF; break;
|
||||
case _C_ONEWAY: res |= _F_ONEWAY; break;
|
||||
case _C_GCINVISIBLE: res |= _F_GCINVISIBLE; break;
|
||||
default: flag = NO;
|
||||
}
|
||||
|
||||
return res;
|
||||
}
|
||||
#endif
|
||||
|
Loading…
x
Reference in New Issue
Block a user