Comma for all field separators; Overloaded procedures follow exportation rules

This commit is contained in:
Ginger Bill
2017-01-17 18:47:38 +00:00
parent 383f5b55ad
commit cb59c1cf08
14 changed files with 439 additions and 285 deletions
+167 -77
View File
@@ -432,7 +432,10 @@ Token ast_node_token(AstNode *node) {
case AstNode_CallExpr:
return ast_node_token(node->CallExpr.proc);
case AstNode_SelectorExpr:
return ast_node_token(node->SelectorExpr.selector);
if (node->SelectorExpr.selector != NULL) {
return ast_node_token(node->SelectorExpr.selector);
}
return node->SelectorExpr.token;
case AstNode_IndexExpr:
return node->IndexExpr.open;
case AstNode_SliceExpr:
@@ -1851,10 +1854,14 @@ AstNode *parse_atom_expr(AstFile *f, bool lhs) {
case Token_Ident:
operand = make_selector_expr(f, token, operand, parse_identifier(f));
break;
case Token_Integer:
operand = make_selector_expr(f, token, operand, parse_expr(f, lhs));
break;
default: {
syntax_error(f->curr_token, "Expected a selector");
next_token(f);
operand = make_selector_expr(f, f->curr_token, operand, NULL);
operand = make_bad_expr(f, ast_node_token(operand), f->curr_token);
// operand = make_selector_expr(f, f->curr_token, operand, NULL);
} break;
}
} break;
@@ -2046,7 +2053,7 @@ AstNodeArray parse_rhs_expr_list(AstFile *f) {
return parse_expr_list(f, false);
}
AstNodeArray parse_identifier_list(AstFile *f) {
AstNodeArray parse_ident_list(AstFile *f) {
AstNodeArray list = make_ast_node_array(f);
do {
@@ -2227,106 +2234,189 @@ AstNode *parse_proc_type(AstFile *f, String *foreign_name_, String *link_name_)
return make_proc_type(f, proc_token, params, results, tags, cc);
}
void parse_field_prefixes(AstFile *f, u32 flags, i32 *using_count, i32 *no_alias_count) {
while (f->curr_token.kind == Token_using ||
f->curr_token.kind == Token_no_alias) {
if (allow_token(f, Token_using)) {
*using_count += 1;
}
if (allow_token(f, Token_no_alias)) {
*no_alias_count += 1;
}
}
if (*using_count > 1) {
syntax_error(f->curr_token, "Multiple `using` in this field list");
*using_count = 1;
}
if (*no_alias_count > 1) {
syntax_error(f->curr_token, "Multiple `no_alias` in this field list");
*no_alias_count = 1;
}
}
bool parse_expect_separator(AstFile *f, TokenKind separator, AstNode *param) {
if (separator == Token_Semicolon) {
expect_semicolon(f, param);
} else {
if (!allow_token(f, separator)) {
return true;
}
}
return false;
}
AstNodeArray convert_to_ident_list(AstFile *f, AstNodeArray list) {
AstNodeArray idents = {0};
array_init_reserve(&idents, heap_allocator(), list.count);
// Convert to ident list
for_array(i, list) {
AstNode *ident = list.e[i];
switch (ident->kind) {
case AstNode_Ident:
case AstNode_BadExpr:
break;
default:
error_node(ident, "Expected an identifier");
ident = make_ident(f, blank_token);
break;
}
array_add(&idents, ident);
}
return idents;
}
AstNode *parse_var_type(AstFile *f, bool allow_ellipsis) {
if (allow_ellipsis && f->curr_token.kind == Token_Ellipsis) {
Token tok = f->curr_token;
next_token(f);
AstNode *type = parse_identifier_or_type(f);
if (type == NULL) {
error(tok, "variadic field missing type after `...`");
type = make_bad_expr(f, tok, f->curr_token);
}
return make_ellipsis(f, tok, type);
}
AstNode *type = parse_type_attempt(f);
if (type == NULL) {
Token tok = f->curr_token;
error(tok, "Expected a type");
type = make_bad_expr(f, tok, f->curr_token);
}
return type;
}
void check_field_prefixes(AstFile *f, AstNodeArray names, u32 flags, i32 *using_count, i32 *no_alias_count) {
if (names.count > 1 && *using_count > 0) {
syntax_error(f->curr_token, "Cannot apply `using` to more than one of the same type");
*using_count = 0;
}
if ((flags&FieldFlag_using) == 0 && *using_count > 0) {
syntax_error(f->curr_token, "`using` is not allowed within this field list");
*using_count = 0;
}
if ((flags&FieldFlag_no_alias) == 0 && *no_alias_count > 0) {
syntax_error(f->curr_token, "`no_alias` is not allowed within this field list");
*no_alias_count = 0;
}
}
u32 field_prefixes_to_flags(i32 using_count, i32 no_alias_count) {
u32 field_flags = 0;
if (using_count > 0) field_flags |= FieldFlag_using;
if (no_alias_count > 0) field_flags |= FieldFlag_no_alias;
return field_flags;
}
AstNodeArray parse_field_list(AstFile *f, isize *name_count_, u32 flags,
TokenKind separator, TokenKind follow) {
AstNodeArray params = make_ast_node_array(f);
isize name_count = 0;
AstNodeArray list = make_ast_node_array(f);
isize name_count = 0;
bool allow_ellipsis = flags&FieldFlag_ellipsis;
// TODO(bill): Allow for just a list of types
i32 using_count = 0;
i32 no_alias_count = 0;
parse_field_prefixes(f, flags, &using_count, &no_alias_count);
while (f->curr_token.kind != follow &&
f->curr_token.kind != Token_Colon &&
f->curr_token.kind != Token_EOF) {
i32 using_count = 0;
i32 no_alias_count = 0;
while (f->curr_token.kind == Token_using ||
f->curr_token.kind == Token_no_alias) {
if (allow_token(f, Token_using)) {
using_count++;
}
if (allow_token(f, Token_no_alias)) {
no_alias_count++;
}
}
AstNodeArray names = parse_identifier_list(f);
if (names.count == 0) {
syntax_error(f->curr_token, "Empty field declaration");
AstNode *param = parse_var_type(f, allow_ellipsis);
array_add(&list, param);
if (f->curr_token.kind != Token_Comma) {
break;
}
next_token(f);
}
if (names.count > 1 && using_count > 0) {
syntax_error(f->curr_token, "Cannot apply `using` to more than one of the same type");
using_count = 0;
if (f->curr_token.kind == Token_Colon) {
AstNodeArray names = convert_to_ident_list(f, list); // Copy for semantic reasons
if (names.count == 0) {
syntax_error(f->curr_token, "Empty field declaration");
}
if ((flags&FieldFlag_using) == 0 && using_count > 0) {
syntax_error(f->curr_token, "`using` is not allowed within this field list");
using_count = 0;
}
if ((flags&FieldFlag_no_alias) == 0 && no_alias_count > 0) {
syntax_error(f->curr_token, "`no_alias` is not allowed within this field list");
no_alias_count = 0;
}
if (using_count > 1) {
syntax_error(f->curr_token, "Multiple `using` in this field list");
using_count = 1;
}
if (no_alias_count > 1) {
syntax_error(f->curr_token, "Multiple `no_alias` in this field list");
no_alias_count = 1;
}
check_field_prefixes(f, names, flags, &using_count, &no_alias_count);
name_count += names.count;
expect_token_after(f, Token_Colon, "field list");
AstNode *type = NULL;
if ((flags&FieldFlag_ellipsis) != 0 && f->curr_token.kind == Token_Ellipsis) {
Token ellipsis = f->curr_token;
next_token(f);
type = parse_type_attempt(f);
if (type == NULL) {
syntax_error(f->curr_token, "variadic field is missing a type after `..`");
type = make_bad_expr(f, ellipsis, f->curr_token);
} else {
if (names.count > 1) {
syntax_error(f->curr_token, "mutliple variadic fields, only `..`");
} else {
type = make_ellipsis(f, ellipsis, type);
}
}
} else {
type = parse_type_attempt(f);
}
if (type == NULL) {
syntax_error(f->curr_token, "Expected a type for this field declaration");
}
u32 flags = 0;
if (using_count > 0) flags |= FieldFlag_using;
if (no_alias_count > 0) flags |= FieldFlag_no_alias;
AstNode *param = make_field(f, names, type, flags);
AstNode *type = parse_var_type(f, allow_ellipsis);
AstNode *param = make_field(f, names, type, field_prefixes_to_flags(using_count, no_alias_count));
array_add(&params, param);
if (separator == Token_Semicolon) {
expect_semicolon(f, param);
} else {
if (!allow_token(f, separator)) {
parse_expect_separator(f, separator, type);
while (f->curr_token.kind != follow &&
f->curr_token.kind != Token_EOF) {
i32 using_count = 0;
i32 no_alias_count = 0;
parse_field_prefixes(f, flags, &using_count, &no_alias_count);
AstNodeArray names = parse_ident_list(f);
if (names.count == 0) {
syntax_error(f->curr_token, "Empty field declaration");
break;
}
check_field_prefixes(f, names, flags, &using_count, &no_alias_count);
name_count += names.count;
expect_token_after(f, Token_Colon, "field list");
AstNode *type = parse_var_type(f, allow_ellipsis);
AstNode *param = make_field(f, names, type, field_prefixes_to_flags(using_count, no_alias_count));
array_add(&params, param);
if (parse_expect_separator(f, separator, param)) {
break;
}
}
if (name_count_) *name_count_ = name_count;
return params;
}
check_field_prefixes(f, list, flags, &using_count, &no_alias_count);
for_array(i, list) {
AstNodeArray names = {0};
AstNode *type = list.e[i];
Token token = blank_token;
array_init_count(&names, heap_allocator(), 1);
token.pos = ast_node_token(type).pos;
names.e[0] = make_ident(f, token);
AstNode *param = make_field(f, names, list.e[i], field_prefixes_to_flags(using_count, no_alias_count));
array_add(&params, param);
}
if (name_count_) *name_count_ = name_count;
return params;
}
AstNodeArray parse_record_fields(AstFile *f, isize *field_count_, u32 flags, String context) {
return parse_field_list(f, field_count_, flags, Token_Semicolon, Token_CloseBrace);
return parse_field_list(f, field_count_, flags, Token_Comma, Token_CloseBrace);
}
AstNode *parse_identifier_or_type(AstFile *f) {
@@ -2753,7 +2843,7 @@ AstNode *parse_for_stmt(AstFile *f) {
}
Token token = expect_token(f, Token_for);
AstNodeArray names = parse_identifier_list(f);
AstNodeArray names = parse_ident_list(f);
parse_check_name_list_for_reserves(f, names);
Token colon = expect_token_after(f, Token_Colon, "for name list");