Module Name:    src
Committed By:   rillig
Date:           Sun Jul 11 18:58:13 UTC 2021

Modified Files:
        src/distrib/sets/lists/tests: mi
        src/tests/usr.bin/xlint/lint1: Makefile
Added Files:
        src/tests/usr.bin/xlint/lint1: stmt_if.c stmt_if.exp

Log Message:
tests/lint: test dangling else


To generate a diff of this commit:
cvs rdiff -u -r1.1083 -r1.1084 src/distrib/sets/lists/tests/mi
cvs rdiff -u -r1.84 -r1.85 src/tests/usr.bin/xlint/lint1/Makefile
cvs rdiff -u -r0 -r1.1 src/tests/usr.bin/xlint/lint1/stmt_if.c \
    src/tests/usr.bin/xlint/lint1/stmt_if.exp

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/distrib/sets/lists/tests/mi
diff -u src/distrib/sets/lists/tests/mi:1.1083 src/distrib/sets/lists/tests/mi:1.1084
--- src/distrib/sets/lists/tests/mi:1.1083	Sat Jul 10 18:25:57 2021
+++ src/distrib/sets/lists/tests/mi	Sun Jul 11 18:58:13 2021
@@ -1,4 +1,4 @@
-# $NetBSD: mi,v 1.1083 2021/07/10 18:25:57 rillig Exp $
+# $NetBSD: mi,v 1.1084 2021/07/11 18:58:13 rillig Exp $
 #
 # Note: don't delete entries from here - mark them as "obsolete" instead.
 #
@@ -6976,6 +6976,8 @@
 ./usr/tests/usr.bin/xlint/lint1/op_shl_lp64.exp			tests-usr.bin-tests	compattestfile,atf
 ./usr/tests/usr.bin/xlint/lint1/stmt_for.c			tests-usr.bin-tests	compattestfile,atf
 ./usr/tests/usr.bin/xlint/lint1/stmt_for.exp			tests-usr.bin-tests	compattestfile,atf
+./usr/tests/usr.bin/xlint/lint1/stmt_if.c			tests-usr.bin-tests	compattestfile,atf
+./usr/tests/usr.bin/xlint/lint1/stmt_if.exp			tests-usr.bin-tests	compattestfile,atf
 ./usr/tests/usr.bin/xlint/lint1/t_integration			tests-usr.bin-tests	compattestfile,atf
 ./usr/tests/usr.bin/ztest				tests-usr.bin-tests	compattestfile,atf
 ./usr/tests/usr.bin/ztest/Atffile			tests-usr.bin-tests	compattestfile,atf

Index: src/tests/usr.bin/xlint/lint1/Makefile
diff -u src/tests/usr.bin/xlint/lint1/Makefile:1.84 src/tests/usr.bin/xlint/lint1/Makefile:1.85
--- src/tests/usr.bin/xlint/lint1/Makefile:1.84	Sat Jul 10 18:25:57 2021
+++ src/tests/usr.bin/xlint/lint1/Makefile	Sun Jul 11 18:58:13 2021
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.84 2021/07/10 18:25:57 rillig Exp $
+# $NetBSD: Makefile,v 1.85 2021/07/11 18:58:13 rillig Exp $
 
 NOMAN=		# defined
 MAX_MESSAGE=	345		# see lint1/err.c
@@ -181,6 +181,8 @@ FILES+=		op_shl_lp64.c
 FILES+=		op_shl_lp64.exp
 FILES+=		stmt_for.c
 FILES+=		stmt_for.exp
+FILES+=		stmt_if.c
+FILES+=		stmt_if.exp
 
 # Note: only works for adding tests.
 # To remove a test, the $$mi file must be edited manually.

Added files:

Index: src/tests/usr.bin/xlint/lint1/stmt_if.c
diff -u /dev/null src/tests/usr.bin/xlint/lint1/stmt_if.c:1.1
--- /dev/null	Sun Jul 11 18:58:13 2021
+++ src/tests/usr.bin/xlint/lint1/stmt_if.c	Sun Jul 11 18:58:13 2021
@@ -0,0 +1,28 @@
+/*	$NetBSD: stmt_if.c,v 1.1 2021/07/11 18:58:13 rillig Exp $	*/
+# 3 "stmt_if.c"
+
+/*
+ * Test parsing of 'if' statements.
+ */
+
+void println(const char *);
+
+void
+dangling_else(int x)
+{
+	if (x > 0)
+		if (x > 10)
+			println("> 10");
+		/* This 'else' is bound to the closest unfinished 'if'. */
+		else
+			println("> 0");
+	/*
+	 * If the above 'else' were bound to the other 'if', the next 'else'
+	 * would have no corresponding 'if', resulting in a syntax error.
+	 */
+	else
+		println("not positive");
+	/* expect+1: syntax error 'else' [249] */
+	else
+		println("syntax error");
+}
Index: src/tests/usr.bin/xlint/lint1/stmt_if.exp
diff -u /dev/null src/tests/usr.bin/xlint/lint1/stmt_if.exp:1.1
--- /dev/null	Sun Jul 11 18:58:13 2021
+++ src/tests/usr.bin/xlint/lint1/stmt_if.exp	Sun Jul 11 18:58:13 2021
@@ -0,0 +1 @@
+stmt_if.c(26): error: syntax error 'else' [249]

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