#include <config.h>
#include <stdio.h>
#include <stdbool.h>
+#include <inttypes.h>
#include <assert.h>
#include "cdecl.h"
#include "cdecl-internal.h"
static size_t
-declare_declarator(char *buf, size_t n, struct cdecl_declarator *d);
+declare_declarator(char **dst, size_t *dstlen, struct cdecl_declarator *d);
-static size_t declare_decl(char *buf, size_t n, struct cdecl *decl)
+static size_t declare_decl(char **dst, size_t *dstlen, struct cdecl *decl)
{
- size_t ret = 0, rc;
+ size_t ret, rc;
- rc = cdecl__explain_specs(buf, n, decl->specifiers, -1);
+ rc = cdecl__explain_specs(*dst, *dstlen, decl->specifiers, -1);
if (decl->declarators->type != CDECL_DECL_NULL)
- ret += cdecl__advance(&buf, &n, rc);
+ ret = cdecl__advance(dst, dstlen, rc);
else
- ret += cdecl__advance_(&buf, &n, rc);
+ ret = cdecl__advance_(dst, dstlen, rc);
- return ret + declare_declarator(buf, n, decl->declarators);
+ return ret + declare_declarator(dst, dstlen, decl->declarators);
}
static size_t
-declare_postfix_child(char *buf, size_t n, struct cdecl_declarator *d)
+declare_postfix_child(char **dst, size_t *dstlen, struct cdecl_declarator *d)
{
- size_t ret = 0, rc;
+ size_t ret = 0;
- if (d->type == CDECL_DECL_POINTER) {
- rc = snprintf(buf, n, "(");
- ret += cdecl__advance_(&buf, &n, rc);
- }
+ if (d->type == CDECL_DECL_POINTER)
+ ret += cdecl__emit(dst, dstlen, "(");
- rc = declare_declarator(buf, n, d);
- ret += cdecl__advance_(&buf, &n, rc);
+ ret += declare_declarator(dst, dstlen, d);
- if (d->type == CDECL_DECL_POINTER) {
- rc = snprintf(buf, n, ")");
- ret += cdecl__advance_(&buf, &n, rc);
- }
+ if (d->type == CDECL_DECL_POINTER)
+ ret += cdecl__emit(dst, dstlen, ")");
return ret;
}
-static size_t declare_pointer(char *buf, size_t n, struct cdecl_pointer *p)
+static size_t
+declare_pointer(char **dst, size_t *dstlen, struct cdecl_pointer *p)
{
- size_t ret = 0, rc;
-
- rc = snprintf(buf, n, "*");
- if (p->qualifiers)
- ret += cdecl__advance(&buf, &n, rc);
- else
- ret += cdecl__advance_(&buf, &n, rc);
-
- rc = cdecl__explain_specs(buf, n, p->qualifiers, CDECL_SPEC_QUAL);
- return ret + rc;
-}
+ struct cdecl_declspec *q = p->qualifiers;
-static bool pointer_needs_space(struct cdecl_declarator *d)
-{
- assert(d->type == CDECL_DECL_POINTER);
+ if (q) {
+ size_t ret, rc;
- if (d->u.pointer.qualifiers)
- return d->child->type != CDECL_DECL_NULL;
+ ret = cdecl__emit(dst, dstlen, "* ");
+ rc = cdecl__explain_specs(*dst, *dstlen, q, -1);
+ return ret + cdecl__advance(dst, dstlen, rc);
+ }
- return false;
+ return cdecl__emit(dst, dstlen, "*");
}
-static size_t declare_array(char *buf, size_t n, struct cdecl_array *a)
+static size_t declare_array(char **dst, size_t *dstlen, struct cdecl_array *a)
{
- size_t ret = 0, rc;
+ size_t ret;
- rc = snprintf(buf, n, "[");
- ret += cdecl__advance_(&buf, &n, rc);
+ ret = cdecl__emit(dst, dstlen, "[");
- if (a->vla)
- rc = snprintf(buf, n, "%s", a->vla[0] ? a->vla : "*");
- else
- rc = snprintf(buf, n, "%.0ju", a->length);
- ret += cdecl__advance_(&buf, &n, rc);
+ if (a->vla) {
+ const char *s = a->vla[0] ? a->vla : "*";
+ ret += cdecl__emit(dst, dstlen, s);
+ } else {
+ size_t rc = snprintf(*dst, *dstlen, "%.0" PRIuMAX, a->length);
+ ret += cdecl__advance_(dst, dstlen, rc);
+ }
- return ret + snprintf(buf, n, "]");
+ return ret + cdecl__emit(dst, dstlen, "]");
}
-static size_t declare_function(char *buf, size_t n, struct cdecl_function *f)
+static size_t
+declare_function(char **dst, size_t *dstlen, struct cdecl_function *f)
{
- size_t ret = 0, rc;
+ struct cdecl *p;
+ size_t ret;
- rc = snprintf(buf, n, "(");
- ret += cdecl__advance_(&buf, &n, rc);
+ ret = cdecl__emit(dst, dstlen, "(");
- for (struct cdecl *p = f->parameters; p; p = p->next) {
- rc = declare_decl(buf, n, p);
- ret += cdecl__advance_(&buf, &n, rc);
+ for (p = f->parameters; p; p = p->next) {
+ ret += declare_decl(dst, dstlen, p);
- rc = 0;
if (p->next)
- rc = snprintf(buf, n, ", ");
+ ret += cdecl__emit(dst, dstlen, ", ");
else if (f->variadic)
- rc = snprintf(buf, n, ", ...");
- ret += cdecl__advance_(&buf, &n, rc);
+ ret += cdecl__emit(dst, dstlen, ", ...");
}
- return ret + snprintf(buf, n, ")");
+ return ret + cdecl__emit(dst, dstlen, ")");
}
static size_t
-declare_declarator(char *buf, size_t n, struct cdecl_declarator *d)
+declare_declarator(char **dst, size_t *dstlen, struct cdecl_declarator *d)
{
- size_t ret = 0, rc;
+ size_t ret = 0;
for (; d; d = d->child) {
switch (d->type) {
case CDECL_DECL_NULL:
break;
case CDECL_DECL_IDENT:
- rc = snprintf(buf, n, "%s", d->u.ident);
- ret += cdecl__advance_(&buf, &n, rc);
+ ret += cdecl__emit(dst, dstlen, d->u.ident);
break;
case CDECL_DECL_POINTER:
- rc = declare_pointer(buf, n, &d->u.pointer);
- if (pointer_needs_space(d))
- ret += cdecl__advance(&buf, &n, rc);
- else
- ret += cdecl__advance_(&buf, &n, rc);
+ ret += declare_pointer(dst, dstlen, &d->u.pointer);
break;
/*
* Arrays and functions are special: since they are postfix,
* "bodies".
*/
case CDECL_DECL_ARRAY:
- rc = declare_postfix_child(buf, n, d->child);
- ret += cdecl__advance_(&buf, &n, rc);
- return ret + declare_array(buf, n, &d->u.array);
+ ret += declare_postfix_child(dst, dstlen, d->child);
+ return ret + declare_array(dst, dstlen, &d->u.array);
case CDECL_DECL_FUNCTION:
- rc = declare_postfix_child(buf, n, d->child);
- ret += cdecl__advance_(&buf, &n, rc);
- return ret + declare_function(buf, n, &d->u.function);
+ ret += declare_postfix_child(dst, dstlen, d->child);
+ return ret + declare_function(dst, dstlen, &d->u.function);
default:
assert(0);
}
size_t cdecl_declare(char *buf, size_t n, struct cdecl *decl)
{
- return declare_decl(buf, n, decl);
+ return declare_decl(&buf, &n, decl);
}
projects / cdecl99.git / blobdiff