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authorYusuke Endoh <[email protected]>2021-11-18 03:40:49 +0900
committerYusuke Endoh <[email protected]>2021-11-21 08:59:24 +0900
commitfeda058531c0bdd5b673180accb4407dcc798c79 ()
tree7a9e59021282949f551b690feee031919ddd8a5a /node.c
parent86ad878e6a0781749c73574112a0fac4f088e2c9 (diff)
Refactor hacky ID tables to struct rb_ast_id_table_t
The implementation of a local variable tables was represented as `ID*`, but it was very hacky: the first element is not an ID but the size of the table, and, the last element is (sometimes) a link to the next local table only when the id tables are a linked list. This change converts the hacky implementation to a normal struct.
Notes: Merged: https://.com/ruby/ruby/pull/5136
-rw-r--r--node.c47
1 files changed, 35 insertions, 12 deletions
@@ -1043,12 +1043,12 @@ dump_node(VALUE buf, VALUE indent, int comment, const NODE * node)
ANN("new scope");
ANN("format: [nd_tbl]: local table, [nd_args]: arguments, [nd_body]: body");
F_CUSTOM1(nd_tbl, "local table") {
- ID *tbl = node->nd_tbl;
int i;
- int size = tbl ? (int)*tbl++ : 0;
if (size == 0) A("(empty)");
for (i = 0; i < size; i++) {
- A_ID(tbl[i]); if (i < size - 1) A(",");
}
}
F_NODE(nd_args, "arguments");
@@ -1162,7 +1162,7 @@ typedef struct {
struct node_buffer_struct {
node_buffer_list_t unmarkable;
node_buffer_list_t markable;
- ID *local_tables;
VALUE mark_hash;
};
@@ -1205,15 +1205,22 @@ node_buffer_list_free(node_buffer_list_t * nb)
}
}
static void
rb_node_buffer_free(node_buffer_t *nb)
{
node_buffer_list_free(&nb->unmarkable);
node_buffer_list_free(&nb->markable);
- ID * local_table = nb->local_tables;
while (local_table) {
- unsigned int size = (unsigned int)*local_table;
- ID * next_table = (ID *)local_table[size + 1];
xfree(local_table);
local_table = next_table;
}
@@ -1277,12 +1284,28 @@ rb_ast_node_type_change(NODE *n, enum node_type type)
}
}
-void
-rb_ast_add_local_table(rb_ast_t *ast, ID *buf)
{
- unsigned int size = (unsigned int)*buf;
- buf[size + 1] = (ID)ast->node_buffer->local_tables;
- ast->node_buffer->local_tables = buf;
}
void