shithub: scc

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Added tree structure for default

--- a/flow.c

+++ b/flow.c

@@ -207,6 +207,20 @@

 }

 static struct node *

+_default(void)

+{

+	register unsigned char *bp;

+

+	expect(DEFAULT);

+	for (bp = blocks; bp < blockp && *bp != OSWITCH; ++bp)

+		; /* nothing */

+	if (bp == blockp)

+		error("default statement not within switch");

+	expect(':');

+	return node1(ODEFAULT, NULL);

+}

+

+static struct node *

 stmt(void)

 {

 	register struct node *np;

@@ -223,7 +237,7 @@

 	case RETURN:   return _return();

 	case GOTO:     return _goto();

 	case CASE:     return _case();

-	case DEFAULT:  /* TODO */

+	case DEFAULT:  return _default();

 	case IDEN:     return label();

 	}

 	np = expr();

--- a/syntax.h

+++ b/syntax.h

@@ -12,7 +12,7 @@

 	OA_MOD, OA_ADD, OA_SUB, OA_SHL, OA_SHR, OA_AND,

 	OA_XOR, OA_OR, OSYM, OCOMP, OSWITCH, OIF, OFOR,

 	OFEXP, ODO, OWHILE, OLABEL, OGOTO, OBREAK, OCONT,

-	ORETURN, OCASE

+	ORETURN, OCASE, ODEFAULT

 };

 struct node;

--- a/tree.c

+++ b/tree.c

@@ -188,7 +188,8 @@

 		[OBREAK] = {1, "break"},

 		[OCONT] = {1, "cont"},

 		[ORETURN] = {1, "return"},

-		[OCASE] = {1, "case"}

+		[OCASE] = {1, "case"},

+		[ODEFAULT] = {1, "default"}

 	};

 	if (!np) {

 		fputs(" nil", stdout);

-- 

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