shithub: scc

Download patch

ref: 3c8406c0b92af281c68ffcf7595fed2ac98a095a
parent: cd53c9b23ec34490e3f34a155a6d5bce8fdc53d1
author: Roberto E. Vargas Caballero <[email protected]>
date: Tue Mar 18 18:02:41 EDT 2014 

Remove non used code about compound and print trees


--- a/syntax.h
+++ b/syntax.h
@@ -24,18 +24,11 @@
 struct symbol;
 struct ctype;
 
-struct compound {
-	struct node *tree;
-	struct node_op2 *last;
-};
-
 extern struct node *expr(void), *extdecl(void), *decl(void),
 	*typename(void), *function(void);
 
 extern struct node *node(unsigned char op, struct node *l, struct node *r);
 extern struct node *nodesym(struct symbol *sym);
-extern struct node *addstmt(struct compound *p, struct node *np);
 extern bool walk(register struct node *np, bool (*fun)(struct node *));
-extern void prtree(register struct node *np);
 
 #endif
--- a/tree.c
+++ b/tree.c
@@ -45,21 +45,6 @@
 	return (struct node *) np;
 }
 
-struct node *
-addstmt(struct compound *p, struct node *np)
-{
-	if (!p->tree) {
-		p->tree = node(OCOMP, NULL, NULL);
-		p->last = (struct node_op2 *) p->tree;
-		p->last->right = np;
-	} else {
-		p->last = (struct node_op2 *)
-		   (p->last->left = node(O2EXP, NULL, np));
-	}
-
-	return p->tree;
-}
-
 bool
 walk(register struct node *np, bool (*fun)(struct node *))
 {
@@ -71,98 +56,3 @@
 	p = (struct node_op2 *) np;
 	return (*fun)(np) && walk(p->left, fun) && walk(p->right, fun);
 }
-
-void
-prtree(register struct node *np)
-{
-	static unsigned char indent;
-	register unsigned char i;
-	static char *optab[] = {
-		[OCALL] = "()",
-		[OARY] = "[]",
-		[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] = "sym",
-		[OCOMP] = "comp",
-		[OSWITCH] = "switch",
-		[OIF] = "if",
-		[OFOR] = "for",
-		[OFEXP] = "efor",
-		[ODO] = "do",
-		[OWHILE] = "while",
-		[OLABEL] = "label",
-		[OGOTO] = "goto",
-		[OBREAK] = "break",
-		[OCONT] = "cont",
-		[ORETURN] = "return",
-		[OCASE] = "case",
-		[ODEFAULT] = "default",
-		[OFTN] = "function",
-		[O2EXP] = ":",
-		[ODEF] = "def"
-	};
-
-	if (!np) {
-		fputs(" nil", stdout);
-		return;
-	}
-	if (np->op == OSYM) {
-		const char *s = ((struct nodesym *) np)->sym->name;
-
-		printf(" %s", s ? s : ".");
-		return;
-	}
-
-	putchar('\n');
-	for (i = indent; i != 0; --i)
-		putchar(' ');
-
-	indent += 2;
-	assert(np->op < ARRAY_SIZE(optab));
-	printf("(%s", optab[np->op]);
-	prtree(((struct node_op2 *)np)->right);
-	prtree(((struct node_op2 *)np)->left);
-	putchar(')');
-	indent -= 2;
-}
-