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Beginning to change string type

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This commit is contained in:
Justin Ethier 2017-10-20 13:28:16 +00:00
parent 71c7ed3e7f
commit ccad990626
1 changed files with 46 additions and 1 deletions
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47
include/cyclone/types.h
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@ -721,16 +721,21 @@ typedef enum {
typedef struct {
gc_header_type hdr;
tag_type tag;
int num_cp;
int len;
char *str;
} string_type;
// TODO: below macros are obsolete, need new ones that populate num_cp and
// raise an error if an invalid UTF-8 char is detected
/** Create a new string in the nursery */
#define make_string(cs, s) string_type cs; \
{ int len = strlen(s); \
cs.hdr.mark = gc_color_red; \
cs.hdr.grayed = 0; \
cs.tag = string_tag; \
cs.num_cp = len; \
cs.len = len; \
cs.str = alloca(sizeof(char) * (len + 1)); \
memcpy(cs.str, s, len + 1);}
@ -744,6 +749,7 @@ typedef struct {
cs.hdr.mark = gc_color_red; \
cs.hdr.grayed = 0; \
cs.tag = string_tag; cs.len = len; \
cs.num_cp = len; \
cs.str = alloca(sizeof(char) * (len + 1)); \
memcpy(cs.str, s, len); \
cs.str[len] = '\0';}
@ -755,9 +761,48 @@ typedef struct {
#define make_string_noalloc(cs, s, length) string_type cs; \
{ cs.hdr.mark = gc_color_red; cs.hdr.grayed = 0; \
cs.tag = string_tag; cs.len = length; \
cs.num_cp = length; \
cs.str = s; }
/** Get the length of a string */
///** Create a new string in the nursery */
//#define make_string(cs, s) string_type cs; \
//{ int len = strlen(s); \
// cs.hdr.mark = gc_color_red; \
// cs.hdr.grayed = 0; \
// cs.tag = string_tag; \
// cs.num_cp = len; \
// cs.len = len; \
// cs.str = alloca(sizeof(char) * (len + 1)); \
// memcpy(cs.str, s, len + 1);}
//
///**
// * Create a new string with the given length
// * (so it does not need to be computed)
// */
//#define make_string_with_len(cs, s, length) string_type cs; \
//{ int len = length; \
// cs.hdr.mark = gc_color_red; \
// cs.hdr.grayed = 0; \
// cs.tag = string_tag; cs.len = len; \
// cs.num_cp = len; \
// cs.str = alloca(sizeof(char) * (len + 1)); \
// memcpy(cs.str, s, len); \
// cs.str[len] = '\0';}
//
///**
// * Create a string object using the given C string and length.
// * No allocation is done for the given C string.
// */
//#define make_string_noalloc(cs, s, length) string_type cs; \
//{ cs.hdr.mark = gc_color_red; cs.hdr.grayed = 0; \
// cs.tag = string_tag; cs.len = length; \
// cs.num_cp = length; \
// cs.str = s; }
/** Get the length of a string, in characters (code points) */
#define string_num_cp(x) (((string_type *) x)->num_cp)
/** Get the length of a string, in bytes */
#define string_len(x) (((string_type *) x)->len)
/** Get a string object's C string */