From: 星外之神 <wszqkzqk@qq.com>
Date: Tue, 25 Oct 2022 13:02:32 +0000 (+0800)
Subject: vala: Report error in real literal if exponent has no digits
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2b69b8accac817f23bd51ca41d14deec131d83c5;p=thirdparty%2Fvala.git

vala: Report error in real literal if exponent has no digits
---

diff --git a/tests/Makefile.am b/tests/Makefile.am
index 6a2acf56c..10ff6183f 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -1243,6 +1243,9 @@ TESTS = \
 	semantic/property-too-few-type-arguments.test \
 	semantic/property-too-many-type-arguments.test \
 	semantic/property-void.test \
+	semantic/realliteral-exponent-has-no-digits.test \
+	semantic/realliteral-exponent-has-no-digits2.test \
+	semantic/realliteral-exponent-has-no-digits3.test \
 	semantic/reference-transfer-not-supported.test \
 	semantic/reference-transfer-unavailable.test \
 	semantic/return-in-nonvoid.test \
diff --git a/tests/semantic/realliteral-exponent-has-no-digits.test b/tests/semantic/realliteral-exponent-has-no-digits.test
new file mode 100644
index 000000000..fbe418a07
--- /dev/null
+++ b/tests/semantic/realliteral-exponent-has-no-digits.test
@@ -0,0 +1,5 @@
+Invalid Code
+
+void main () {
+	double foo = 18.93e;
+}
diff --git a/tests/semantic/realliteral-exponent-has-no-digits2.test b/tests/semantic/realliteral-exponent-has-no-digits2.test
new file mode 100644
index 000000000..b0d48fa09
--- /dev/null
+++ b/tests/semantic/realliteral-exponent-has-no-digits2.test
@@ -0,0 +1,5 @@
+Invalid Code
+
+void main () {
+	double foo = 20.03e+;
+}
diff --git a/tests/semantic/realliteral-exponent-has-no-digits3.test b/tests/semantic/realliteral-exponent-has-no-digits3.test
new file mode 100644
index 000000000..0256423ef
--- /dev/null
+++ b/tests/semantic/realliteral-exponent-has-no-digits3.test
@@ -0,0 +1,5 @@
+Invalid Code
+
+void main () {
+	double foo = 7.11e-;
+}
diff --git a/vala/valarealliteral.vala b/vala/valarealliteral.vala
index 2924cd764..c992fba6f 100644
--- a/vala/valarealliteral.vala
+++ b/vala/valarealliteral.vala
@@ -71,6 +71,11 @@ public class Vala.RealLiteral : Literal {
 			type_name = "double";
 		}
 
+		if (value.has_suffix ("e") || value.has_suffix ("+") || value.has_suffix ("-")) {
+			Report.error (source_reference, "exponent has no digits");
+			error = true;
+		}
+
 		var st = (Struct) context.root.scope.lookup (type_name);
 		// ensure attributes are already processed
 		st.check (context);