Allowing zero-length in static array (#14)

algorand · Nov 29, 2022 · 755a940 · 755a940
1 parent 278bd82
commit 755a940
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Showing 2 changed files with 13 additions and 2 deletions.
diff --git a/abi/type.go b/abi/type.go
@@ -96,7 +96,7 @@ func (t Type) String() string {
 	}
 }
 
-var staticArrayRegexp = regexp.MustCompile(`^([a-z\d\[\](),]+)\[([1-9][\d]*)]$`)
+var staticArrayRegexp = regexp.MustCompile(`^([a-z\d\[\](),]+)\[(0|[1-9][\d]*)]$`)
 var ufixedRegexp = regexp.MustCompile(`^ufixed([1-9][\d]*)x([1-9][\d]*)$`)
 
 // TypeOf parses an ABI type string.

diff --git a/abi/type_test.go b/abi/type_test.go
@@ -253,6 +253,18 @@ func TestTypeFromStringValid(t *testing.T) {
 				uint16(200),
 			),
 		},
+		{
+			input:    "ufixed64x10[0]",
+			testType: "static array",
+			expected: makeStaticArrayType(
+				Type{
+					kind:      Ufixed,
+					bitSize:   uint16(64),
+					precision: uint16(10),
+				},
+				uint16(0),
+			),
+		},
 		// tuple type
 		{
 			input:    "()",
@@ -509,7 +521,6 @@ func TestTypeFromStringInvalid(t *testing.T) {
 		"[][][]",
 		"stuff[]",
 		// static array
-		"ufixed32x10[0]",
 		"byte[10 ]",
 		"uint64[0x21]",
 		// tuple