From: dick <none@none>
Date: Thu, 2 Nov 1989 18:17:59 +0000 (+0000)
Subject: restrained error messages for lint + misc.
X-Git-Tag: release-5-5~2113
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=787904f82c68eb480a6fabbef1c9c1b82854e3fa;p=ack.git

restrained error messages for lint + misc.
---

diff --git a/lang/cem/cemcom/LintPars b/lang/cem/cemcom/LintPars
index 305a264d8..82273bc3e 100644
--- a/lang/cem/cemcom/LintPars
+++ b/lang/cem/cemcom/LintPars
@@ -8,7 +8,7 @@
 
 !File: errout.h
 #define	ERROUT		STDERR	/* file pointer for writing messages	*/
-#define	ERR_SHADOW	5	/* a syntax error overshadows error messages
+#define	ERR_SHADOW	0	/* a syntax error overshadows error messages
 					until ERR_SHADOW symbols have been
 					accepted without syntax error */
 
diff --git a/lang/cem/cemcom/Makefile b/lang/cem/cemcom/Makefile
index b2dc16d82..c204f581a 100644
--- a/lang/cem/cemcom/Makefile
+++ b/lang/cem/cemcom/Makefile
@@ -3,6 +3,7 @@
 
 # Machine and environ dependent definitions
 EMHOME = ../../..
+EMHOME = /usr/proj/em/Work#???
 MKDEP = $(EMHOME)/bin/mkdep
 PRID = $(EMHOME)/bin/prid
 CID = $(EMHOME)/bin/cid
@@ -141,6 +142,13 @@ LINTFLAGS =
 .str.h:
 	./make.allocd <$*.str >$*.h
 
+LINTTEST:	#???
+	make Lnt
+#	../lpass2/lint -Dunix -DMINIX /usr/star/ast/minix/tape3/commands/make/*.c
+	./lnt -h -Dlint --x s.c #x46.c #ceriel.c #m.c #lithm.c # fig4.c
+#	(cd ../lpass2; make lint.test)
+#	./lnt -Dmc68000 -I/usr/em/h -I/usr/em/modules/h -I/usr/em/modules/pkg u.c
+
 Main:	Cfiles
 	sh -c 'if $(CC) nmclash.c > /dev/null 2>&1 ; then make "EMHOME="$(EMHOME) $(CURRDIR)main ; else EMHOME=$(EMHOME); export EMHOME; ./Resolve main ; fi'
 	@rm -f nmclash.o a.out
@@ -161,7 +169,6 @@ CEmain:	Cfiles
 
 Lnt:	Cfiles
 	sh -c 'if $(CC) nmclash.c > /dev/null 2>&1 ; then make "EMHOME="$(EMHOME) $(CURRDIR)lnt ; else EMHOME=$(EMHOME); export EMHOME; ./Resolve lnt ; fi'
-	make "EMHOME="$(EMHOME) $(CURRDIR)lnt
 	@rm -f nmclash.o a.out
 
 install:	Main
diff --git a/lang/cem/cemcom/declar.g b/lang/cem/cemcom/declar.g
index 54e68da87..4394ccc6e 100644
--- a/lang/cem/cemcom/declar.g
+++ b/lang/cem/cemcom/declar.g
@@ -38,7 +38,11 @@ declaration
 :
 	{Ds = null_decspecs;}
 	decl_specifiers(&Ds)
-	init_declarator_list(&Ds)?
+	[%default		/* missing identifier derailed parser */
+		init_declarator_list(&Ds)
+	|
+		empty
+	]
 	';'
 ;
 
diff --git a/lang/cem/cemcom/l_dummy.c b/lang/cem/cemcom/l_dummy.c
index f0633a615..9e524ee86 100644
--- a/lang/cem/cemcom/l_dummy.c
+++ b/lang/cem/cemcom/l_dummy.c
@@ -6,7 +6,7 @@
 
 /*
  *The following functions are hacked to null-functions (i.e. they
- * do nothing). This needs another solution in the future.
+ * do nothing). This needs another solution in the future. !!???!!
  */
 #include	"lint.h"
 
@@ -29,9 +29,7 @@ CC_crdlb(ps_xxx,v,s) label v; arith s; {}
 /* ARGSUSED */
 CC_crdnam(ps_xxx,v,s) char *v; arith s; {}
 /* ARGSUSED */
-CC_crfcon(ps_xxx,v,s) char *v; arith s; {}
-/* ARGSUSED */
-CC_cricon(ps_xxx,v,s) char *v; arith s; {}
+CC_crxcon(op,ps_xxx,v,s) char *v; arith s; {}
 /* ARGSUSED */
 CC_crilb(ps_xxx,v) label v; {}
 /* ARGSUSED */
@@ -39,8 +37,6 @@ CC_crpnam(ps_xxx,v) char *v; {}
 /* ARGSUSED */
 CC_crscon(ps_xxx,v,s) char *v; arith s; {}
 /* ARGSUSED */
-CC_crucon(ps_xxx,v,s) char *v; arith s; {}
-/* ARGSUSED */
 CC_cst(l) {}
 /* ARGSUSED */
 CC_dfdlb(l) label l; {}
diff --git a/lang/cem/cemcom/l_outdef.c b/lang/cem/cemcom/l_outdef.c
index 32338b473..6d2bc48b0 100644
--- a/lang/cem/cemcom/l_outdef.c
+++ b/lang/cem/cemcom/l_outdef.c
@@ -516,7 +516,10 @@ fill_arg(e)
 		arg->ar_class = ArgConst;
 		arg->CAA_VALUE = e->VL_VALUE;
 	}
-	else if (e->ex_class == Value && e->VL_CLASS == Label) {
+	else if (	e->ex_type == string_type
+		&&	e->ex_class == Value
+		&&	e->VL_CLASS == Label
+		) {
 		/* it may be a string; let's look it up */
 		register struct string_cst *sc = str_list;
 
diff --git a/lang/cem/cemcom/l_states.c b/lang/cem/cemcom/l_states.c
index 51557affe..44b7832fb 100644
--- a/lang/cem/cemcom/l_states.c
+++ b/lang/cem/cemcom/l_states.c
@@ -149,6 +149,7 @@ lint_1_local(idf, def)
 
 	if (	(sc == STATIC || sc == LABEL)
 	&&	!def->df_used
+	&&	!is_anon_idf(idf)
 	) {
 		def_warning(def, "%s %s not used anywhere in function %s",
 			symbol2str(sc), idf->id_text, func_name);
@@ -159,6 +160,7 @@ lint_1_local(idf, def)
 	&&	!def->df_initialized
 	&&	def->df_firstbrace != 0
 	&&	def->df_minlevel != level
+	&&	!is_anon_idf(idf)
 	) {
 		register int diff = def->df_minlevel - level;
 
@@ -212,18 +214,22 @@ lint_1_global(idf, def)
 
 		if (sc == STATIC && !def->df_used) {
 			if (def->df_set) {
-				def_warning(def,
-					"%s %s %s set but not used",
-					symbol2str(sc),
-					symbol2str(fund),
-					idf->id_text);
+				if (!is_anon_idf(idf) && fund != ERRONEOUS) {
+					def_warning(def,
+						"%s %s %s set but not used",
+						symbol2str(sc),
+						symbol2str(fund),
+						idf->id_text);
+				}
 			}
 			else {
-				def_warning(def,
-					"%s %s %s not used anywhere",
-					symbol2str(sc),
-					symbol2str(fund),
-					idf->id_text);
+				if (!is_anon_idf(idf) && fund != ERRONEOUS) {
+					def_warning(def,
+						"%s %s %s not used anywhere",
+						symbol2str(sc),
+						symbol2str(fund),
+						idf->id_text);
+				}
 			}
 		}
 		if (loptions['x']) {
@@ -235,6 +241,8 @@ lint_1_global(idf, def)
 			&&	!def->df_initialized
 			&&	!def->df_used
 			&&	strcmp(&fn[strlen(fn)-2], ".c") == 0
+			&&	!is_anon_idf(idf)
+			&&	fund != ERRONEOUS
 			) {
 				def_warning(def,
 					"%s %s %s not used anywhere",
@@ -300,9 +308,11 @@ change_state(idf, to_state)
 		break;
 	case USED:
 		if (!a->ad_set) {
-			warning("%s%s uninitialized", idf->id_text,
-				(a->ad_maybe_set ? " possibly" : "")
-			);
+			if (!is_anon_idf(idf)) {
+				warning("%s%s uninitialized", idf->id_text,
+					(a->ad_maybe_set ? " possibly" : "")
+				);
+			}
 			a->ad_maybe_set = 0;
 			a->ad_set = 1;	/* one warning */
 		}
@@ -351,7 +361,7 @@ check_autos()
 
 	ASSERT(!(a && a->ad_def->df_level > level));
 	while (a && a->ad_def->df_level == level) {
-		if (!a->ad_used) {
+		if (!a->ad_used && !is_anon_idf(a->ad_idf)) {
 			if (a->ad_set || a->ad_maybe_set) {
 				def_warning(a->ad_def,
 					"%s set but not used in function %s",
@@ -384,6 +394,7 @@ lint_end_formals()
 
 		if (	(def && !def->df_used)
 		&&	!(f_ARGSUSED || LINTLIB)
+		&&	!is_anon_idf(se->se_idf)
 		) {
 			def_warning(def, "argument %s not used in function %s",
 					se->se_idf->id_text, func_name);
@@ -839,8 +850,7 @@ lint_continue_stmt()
 
 /******** A C T I O N S : S W I T C H ********/
 
-start_switch_part(expr)
-	struct expr *expr;
+start_switch_part(const)
 {
 /* ls_current of a SWITCH entry has different meaning from ls_current of
  * other entries. It keeps track of which variables are used in all
@@ -850,7 +860,7 @@ start_switch_part(expr)
 	register struct lint_stack_entry *new = mk_lint_stack_entry(SWITCH);
 
 	dbg_lint_stack("start_switch_part");
-	if (is_cp_cst(expr))
+	if (const)
 		hwarning("value in switch statement is constant");
 
 	new->LS_CASE = copy_state(top_ls->ls_current, level);
@@ -859,7 +869,6 @@ start_switch_part(expr)
 	top_ls->ls_current->st_notreached = 1;
 	top_ls->ls_current->st_warned = 0;
 	lint_push(new);
-	lint_expr(expr, USED);	/*???*/
 }
 
 end_switch_stmt()
@@ -1085,6 +1094,7 @@ lint_return_stmt(e)
 		if (	e == NOVALRETURNED
 		&&	!func_notypegiven
 		&&	fund != VOID
+		&&	fund != ERRONEOUS
 		) {
 			warning("function %s declared %s%s but no value returned",
 				func_name,
diff --git a/lang/cem/cemcom/statement.g b/lang/cem/cemcom/statement.g
index 1967ed39d..690bfb2ca 100644
--- a/lang/cem/cemcom/statement.g
+++ b/lang/cem/cemcom/statement.g
@@ -138,9 +138,6 @@ if_statement
 	'('
 	expression(&expr)
 		{
-#ifdef DEBUG
-		print_expr("expr in IF", expr);
-#endif DEBUG
 			opnd2test(&expr, IF);
 			if (is_cp_cst(expr))	{
 				/*	The comparison has been optimized
@@ -361,7 +358,7 @@ switch_statement
 		{
 			code_startswitch(&expr);
 #ifdef	LINT
-			start_switch_part(expr);
+			start_switch_part(is_cp_cst(expr));
 #endif	LINT
 		}
 	')'