diff options
Diffstat (limited to 'src/main.c')
| -rw-r--r-- | src/main.c | 18 |
1 files changed, 18 insertions, 0 deletions
@@ -213,6 +213,7 @@ typedef enum { NOD_NUM, // integer NOD_STRING, // "" NOD_DEREF, // [a] + NOD_EMPTY_STMT, NOD_BLOCK_STMT, NOD_EXPR_STMT, NOD_RETURN_STMT, @@ -339,6 +340,7 @@ void define(Token **rest, Token *tok); static Node *global(Token **rest, Token *tok); static Node *local(Token **rest, Token *tok); static Node *expr(Token **rest, Token *tok); +static Node *empty_stmt(Token **rest, Token *tok); static Node *block_stmt(Token **rest, Token *tok); static Node *expr_stmt(Token **rest, Token *tok); static Node *return_stmt(Token **rest, Token *tok); @@ -657,6 +659,8 @@ primary(Token **rest, Token *tok) static Node * stmt(Token **rest, Token *tok) { + if (equal(tok, ";")) + return empty_stmt(rest, tok); if (equal(tok, "{")) return block_stmt(rest, tok); if (equal(tok, "if")) @@ -694,9 +698,21 @@ stmt(Token **rest, Token *tok) } static Node * +empty_stmt(Token **rest, Token *tok) +{ + *rest = skip(tok, ";"); + return new_node(NOD_EMPTY_STMT); +} + +static Node * block_stmt(Token **rest, Token *tok) { tok = skip(tok, "{"); + if (equal(tok, "}")) { + *rest = tok->next; + return new_node(NOD_EMPTY_STMT); + } + Node *const node = new_node(NOD_BLOCK_STMT); Node head = {0}; @@ -1035,6 +1051,8 @@ gen_stmt(Node *node, Node *fname, int break_lbl) static int label = 0; int lbl; switch (node->type) { + case NOD_EMPTY_STMT: + break; case NOD_BLOCK_STMT: node = node->lhs; while (node != NULL) { |