diff options
Diffstat (limited to 'cgen.c')
| -rw-r--r-- | cgen.c | 105 |
1 files changed, 73 insertions, 32 deletions
@@ -12,6 +12,8 @@ static void cgen_create(CGenerator *g, FILE *out, Identifiers *ids, Evaluator *e g->indent_lvl = 0; g->idents = ids; g->allocr = allocr; + g->nms_prefix = NULL; + *(char *)arr_add(&g->nms_prefix) = '\0'; } static bool cgen_stmt(CGenerator *g, Statement *s); @@ -87,8 +89,10 @@ static bool cgen_defs_decl(CGenerator *g, Declaration *d); return false; \ break; \ case EXPR_NMS: \ + cgen_nms_enter(g, &e->nms); \ if (!block_f(g, &e->nms.body)) \ return false; \ + cgen_nms_exit(g, &e->nms); \ break; \ case EXPR_IF: \ if (e->if_.cond) \ @@ -244,6 +248,73 @@ static inline void cgen_nl(CGenerator *g) { g->will_indent = true; } +static char *cgen_ident_to_str(Identifier i) { + /* TODO: FIXME for unicode idents */ + return ident_to_str(i); +} + +static void cgen_ident_id(CGenerator *g, IdentID id) { + cgen_write(g, "a%lu_", (unsigned long)id); +} +/* used for fields */ +static inline void cgen_ident_simple(CGenerator *g, Identifier i) { + cgen_indent(g); + fprint_ident_reduced_charset(cgen_writing_to(g), i); +} + +static void cgen_ident(CGenerator *g, Identifier i) { + if (g->block && (g->block->flags & BLOCK_IS_NMS)) { + /* namespace prefix */ + cgen_write(g, "%s", g->nms_prefix); + } + if (i == g->main_ident) { + /* don't conflict with C's main! */ + cgen_write(g, "main__"); + } else { + cgen_ident_simple(g, i); + } +} + + +#define CGEN_IDENT_ID_STR_SIZE 48 +/* buffer should be at least CGEN_IDENT_ID_STR_SIZE bytes */ +static inline void cgen_ident_id_to_str(char *buffer, IdentID id) { + snprintf(buffer, 32, "a%lu_", (unsigned long)id); +} + +/* does NOT include __ */ +static char *cgen_nms_prefix(CGenerator *g, Namespace *n) { + char *s; + if (n->associated_ident) { + s = cgen_ident_to_str(n->associated_ident); + } else { + s = malloc(CGEN_IDENT_ID_STR_SIZE); + if (!n->c.id) n->c.id = ++g->ident_counter; + cgen_ident_id_to_str(s, n->c.id); + } + return s; +} + +static void cgen_nms_enter(CGenerator *g, Namespace *n) { + char *s = cgen_nms_prefix(g, n); + size_t chars_so_far = arr_len(g->nms_prefix) - 1; /* -1 for '\0' byte */ + size_t new_chars = strlen(s); + arr_set_len(&g->nms_prefix, chars_so_far + new_chars); + for (size_t i = 0; i < new_chars; ++i) { + g->nms_prefix[i+chars_so_far] = s[i]; + } + *(char *)arr_add(&g->nms_prefix) = '_'; + *(char *)arr_add(&g->nms_prefix) = '_'; + *(char *)arr_add(&g->nms_prefix) = '\0'; + free(s); +} + +static void cgen_nms_exit(CGenerator *g, Namespace *n) { + char *s = cgen_nms_prefix(g, n); + arr_set_len(&g->nms_prefix, arr_len(g->nms_prefix) - strlen(s) - 2); /* -2 for "__" */ + free(s); +} + static inline void cgen_writeln(CGenerator *g, const char *fmt, ...) { va_list args; cgen_indent(g); @@ -253,13 +324,9 @@ static inline void cgen_writeln(CGenerator *g, const char *fmt, ...) { cgen_nl(g); } -static void cgen_ident_id(CGenerator *g, IdentID id) { - cgen_write(g, "a%lu_", (unsigned long)id); -} - /* should this declaration be a direct function declaration C? (as opposed to using a function pointer or not being a function) */ static bool cgen_fn_is_direct(CGenerator *g, Declaration *d) { - return g->block == NULL && (d->flags & DECL_HAS_EXPR) && d->expr.kind == EXPR_FN && arr_len(d->idents) == 1; + return (g->block == NULL || (g->block->flags & BLOCK_IS_NMS)) && (d->flags & DECL_HAS_EXPR) && d->expr.kind == EXPR_FN && arr_len(d->idents) == 1; } static bool cgen_uses_ptr(Type *t) { @@ -283,32 +350,6 @@ static bool cgen_uses_ptr(Type *t) { return false; } -/* used for fields */ -static inline void cgen_ident_simple(CGenerator *g, Identifier i) { - cgen_indent(g); - fprint_ident_reduced_charset(cgen_writing_to(g), i); -} - -static void cgen_ident(CGenerator *g, Identifier i) { - if (i == g->main_ident) { - /* don't conflict with C's main! */ - cgen_write(g, "main__"); - } else { - cgen_ident_simple(g, i); - } -} - - -static char *cgen_ident_to_str(Identifier i) { - return ident_to_str(i); -} - - -/* buffer should be at least 32 bytes */ -static inline void cgen_ident_id_to_str(char *buffer, IdentID id) { - snprintf(buffer, 32, "a%lu_", (unsigned long)id); -} - static inline Identifier cgen_ident_id_to_ident(CGenerator *g, IdentID id) { char s[32]; cgen_ident_id_to_str(s, id); @@ -775,7 +816,7 @@ static bool cgen_set_tuple(CGenerator *g, Expression *exprs, Identifier *idents, static bool cgen_expr_pre(CGenerator *g, Expression *e) { IdentID id = 0; - char ret_name[64]; + char ret_name[CGEN_IDENT_ID_STR_SIZE]; switch (e->kind) { case EXPR_IF: case EXPR_WHILE: |