forked from enlightenment/efl
eolian: fix type parsing
I reorganized what's allowed and what is not a bit, particularly, strictened the rules for named structs and loosened the rules for anonymous structs, and refined them for void types. It should be all correct now.
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5bdbf4dbb5
commit
ae1ff34dd6
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@ -214,8 +214,7 @@ _fill_type_name(Eolian_Type *tp, const char *type_name)
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}
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static Eolian_Type *parse_type_void(Eo_Lexer *ls);
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static Eolian_Type *parse_type_struct(Eo_Lexer *ls, Eina_Bool allow_struct,
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Eina_Bool allow_anon);
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static Eolian_Type *parse_type_struct_void(Eo_Lexer *ls, Eina_Bool allow_struct);
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static Eolian_Type *
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parse_type(Eo_Lexer *ls)
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@ -233,12 +232,11 @@ parse_type(Eo_Lexer *ls)
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}
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static Eolian_Type *
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parse_type_struct_nonvoid(Eo_Lexer *ls, Eina_Bool allow_struct,
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Eina_Bool allow_anon)
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parse_type_struct(Eo_Lexer *ls, Eina_Bool allow_struct)
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{
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Eolian_Type *ret;
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eo_lexer_context_push(ls);
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ret = parse_type_struct(ls, allow_struct, allow_anon);
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ret = parse_type_struct_void(ls, allow_struct);
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if (ret->type == EOLIAN_TYPE_VOID)
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{
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eo_lexer_context_restore(ls);
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@ -314,7 +312,7 @@ parse_struct(Eo_Lexer *ls, const char *name, Eina_Bool is_extern,
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fname = eina_stringshare_ref(ls->t.value);
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eo_lexer_get(ls);
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check_next(ls, ':');
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tp = parse_type_struct_nonvoid(ls, EINA_TRUE, EINA_FALSE);
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tp = parse_type(ls);
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fdef = calloc(1, sizeof(Eolian_Struct_Field));
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fdef->type = tp;
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eina_hash_add(def->fields, fname, fdef);
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@ -335,7 +333,7 @@ parse_struct(Eo_Lexer *ls, const char *name, Eina_Bool is_extern,
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}
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static Eolian_Type *
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parse_type_struct(Eo_Lexer *ls, Eina_Bool allow_struct, Eina_Bool allow_anon)
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parse_type_struct_void(Eo_Lexer *ls, Eina_Bool allow_struct)
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{
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Eolian_Type *def;
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const char *ctype;
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@ -375,56 +373,52 @@ parse_type_struct(Eo_Lexer *ls, Eina_Bool allow_struct, Eina_Bool allow_anon)
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goto parse_ptr;
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}
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case KW_struct:
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eo_lexer_get(ls);
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if (allow_struct)
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{
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Eina_Bool is_extern = EINA_FALSE;
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int line, col;
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if (ls->t.kw == KW_at_extern)
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{
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is_extern = EINA_TRUE;
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eo_lexer_get(ls);
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}
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if (allow_anon && ls->t.token == '{')
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{
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if (is_extern)
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eo_lexer_syntax_error(ls, "extern anonymous struct");
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return parse_struct(ls, NULL, EINA_FALSE, 0, 0);
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}
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/* todo: see typedef */
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buf = push_strbuf(ls);
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eo_lexer_context_push(ls);
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line = ls->line_number;
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col = ls->column;
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parse_name(ls, buf);
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sname = eina_stringshare_add(eina_strbuf_string_get(buf));
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pop_strbuf(ls);
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if (ls->t.token == '{')
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{
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Eolian_Type *tp = (Eolian_Type*)eina_hash_find(_structs,
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sname);
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if (tp)
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{
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eina_stringshare_del(sname);
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eo_lexer_context_restore(ls);
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redef_error(ls, EOLIAN_TYPE_STRUCT, tp);
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}
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eo_lexer_context_pop(ls);
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return parse_struct(ls, sname, is_extern, line, col);
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}
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eo_lexer_context_pop(ls);
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}
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else
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{
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buf = push_strbuf(ls);
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parse_name(ls, buf);
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sname = eina_stringshare_add(eina_strbuf_string_get(buf));
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pop_strbuf(ls);
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}
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def = push_type(ls);
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def->type = EOLIAN_TYPE_REGULAR_STRUCT;
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_fill_type_name(def, sname);
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goto parse_ptr;
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{
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Eina_Bool is_extern = EINA_FALSE;
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int line, col;
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eo_lexer_get(ls);
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if (ls->t.kw == KW_at_extern)
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{
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if (!allow_struct)
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eo_lexer_syntax_error(ls, "only named structs can be extern");
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is_extern = EINA_TRUE;
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eo_lexer_get(ls);
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}
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if (ls->t.token == '{')
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{
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if (is_extern)
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eo_lexer_syntax_error(ls, "extern anonymous struct");
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return parse_struct(ls, NULL, EINA_FALSE, 0, 0);
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}
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buf = push_strbuf(ls);
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eo_lexer_context_push(ls);
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line = ls->line_number;
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col = ls->column;
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parse_name(ls, buf);
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sname = eina_stringshare_add(eina_strbuf_string_get(buf));
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pop_strbuf(ls);
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/* if we're extern and allow structs, gotta enforce it */
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if (allow_struct && is_extern)
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check(ls, '{');
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if (allow_struct && ls->t.token == '{')
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{
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Eolian_Type *tp = (Eolian_Type*)eina_hash_find(_structs,
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sname);
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if (tp)
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{
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eina_stringshare_del(sname);
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eo_lexer_context_restore(ls);
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redef_error(ls, EOLIAN_TYPE_STRUCT, tp);
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}
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eo_lexer_context_pop(ls);
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return parse_struct(ls, sname, is_extern, line, col);
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}
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eo_lexer_context_pop(ls);
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def = push_type(ls);
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def->type = EOLIAN_TYPE_REGULAR_STRUCT;
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_fill_type_name(def, sname);
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goto parse_ptr;
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}
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case KW_func:
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return parse_function_type(ls);
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default:
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@ -485,7 +479,7 @@ parse_ptr:
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static Eolian_Type *
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parse_type_void(Eo_Lexer *ls)
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{
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return parse_type_struct(ls, EINA_FALSE, EINA_FALSE);
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return parse_type_struct_void(ls, EINA_FALSE);
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}
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static Eolian_Type *
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@ -518,7 +512,7 @@ parse_typedef(Eo_Lexer *ls)
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eo_lexer_context_pop(ls);
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def->file = get_filename(ls);
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(void)!!test_next(ls, ':');
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def->base_type = parse_type_struct_nonvoid(ls, EINA_TRUE, EINA_TRUE);
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def->base_type = parse_type_struct(ls, EINA_TRUE);
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pop_type(ls);
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check_next(ls, ';');
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if (ls->t.token == TOK_COMMENT)
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@ -586,7 +580,7 @@ parse_param(Eo_Lexer *ls, Eina_Bool allow_inout)
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else
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par->way = EOLIAN_IN_PARAM;
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}
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if (par->way == EOLIAN_OUT_PARAM)
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if (par->way == EOLIAN_OUT_PARAM || par->way == EOLIAN_INOUT_PARAM)
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par->type = parse_type_void(ls);
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else
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par->type = parse_type(ls);
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