scc

commit ba47ba8ffc19b3f386bbc01989dda5e0dd1d644d
parent d1e3fef8d6f06929405d377a1cb39eca367da123
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Tue, 21 Aug 2012 22:34:46 +0200

Added switch parsing

Diffstat:
M
flow.c
 | 
7
++++---
M
syntax.h
 | 
4
++--
M
tree.c
 | 
3
++-

3 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/flow.c b/flow.c
@@ -73,12 +73,13 @@ do_if(void)
 static struct node *
 do_switch(void)
 {
+	register struct node *e1;
+
 	expect(SWITCH);
 	expect('(');
-	expr();
+	e1 = expr();
 	expect(')');
-	stmt();
-	return NULL;
+	return node2(OSWITCH, e1, stmt());
 }
 
 static struct node *
diff --git a/syntax.h b/syntax.h
@@ -3,14 +3,14 @@
 
 extern unsigned char curctx;
 
-enum {
+enum opcode {
 	OARY, OCALL, OFIELD, OPTR, OPOSTINC, OPOSTDEC,
 	OPREINC, OPREDEC, OADDR, OINDIR, OMINUS, OPLUS,
 	OCPL, ONEG, OMUL, ODIV, OMOD, OADD, OSUB, OSHL,
 	OSHR, OLT, OGT, OGE, OLE, OEQ, ONE, OBAND, OBXOR,
 	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
+	OA_XOR, OA_OR, OSYM, OCOMP, OSWITCH
 };
 
 struct node;
diff --git a/tree.c b/tree.c
@@ -172,7 +172,8 @@ prtree(register struct node *np)
 		[OA_XOR] = {2, "^="},
 		[OA_OR] = {2, "|="},
 		[OSYM] = {0, "sym"},
-		[OCOMP] = {255, "comp"}
+		[OCOMP] = {255, "comp"},
+		[OSWITCH] = {2, "switch"}
 	};
 
 	assert(np && np->op < ARRAY_SIZE(optab));