scc

Simple C99 Compiler
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commit ec3805a1ef3e6d851ecc3e6b0b3ea4135dbaf3ab
parent 0806fd87e7bb0f60a0acc1600b84d1a74351f5d1
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Sat, 25 Aug 2012 17:54:45 +0200

Added tree struct for do/while statement

Diffstat:
flow.c | 10+++++++---
syntax.h | 2+-
tree.c | 3++-
3 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/flow.c b/flow.c @@ -29,13 +29,17 @@ do_while(void) static struct node * do_do(void) { + register struct node *cond, *body; + expect(DO); - stmt(); + body = stmt(); expect(WHILE); expect('('); - expr(); + cond = expr(); expect(')'); - return NULL; + expect(';'); + + return node2(ODO, body, cond); } static struct node * diff --git a/syntax.h b/syntax.h @@ -11,7 +11,7 @@ enum opcode { OBOR, OAND, OOR, OTERN, OASSIGN, OA_MUL, OA_DIV, OA_MOD, OA_ADD, OA_SUB, OA_SHL, OA_SHR, OA_AND, OA_XOR, OA_OR, OSYM, OCOMP, OSWITCH, OIF, OFOR, - OFEXP + OFEXP, ODO }; struct node; diff --git a/tree.c b/tree.c @@ -180,7 +180,8 @@ prtree_helper(register struct node *np) [OSWITCH] = {2, "switch"}, [OIF] = {3, "if"}, [OFOR] = {2, "for"}, - [OFEXP] = {3, "efor"} + [OFEXP] = {3, "efor"}, + [ODO] = {2, "do"} }; if (!np) { fputs(" nil", stdout);