diff options
| author |  Rustan Leino <unknown> | 2015-07-02 20:00:11 -0700 |
|---|---|---|
| committer | Rustan Leino <unknown> | 2015-07-02 20:00:11 -0700 |
| commit | 4d11b8d19bab3c4b37914f12226e19ac6d68ffb1 (patch) | |
| tree | 4fba3b306d72e26bdce96b52d1ff9f24beaab673 /Test | |
| parent | e10098cde7bac9a7a1576000fa29d15f1fcd8970 (diff) | |
Added command-line option /warnShadowing, which emits warnings if variables shadow other variables (Issue #86)
Diffstat (limited to 'Test')
| -rw-r--r-- | Test/dafny0/Shadows.dfy | 42 | ||||
| -rw-r--r-- | Test/dafny0/Shadows.dfy.expect | 12 |
2 files changed, 54 insertions, 0 deletions
diff --git a/Test/dafny0/Shadows.dfy b/Test/dafny0/Shadows.dfy new file mode 100644 index 00000000..da1e74d6 --- /dev/null +++ b/Test/dafny0/Shadows.dfy @@ -0,0 +1,42 @@ +// RUN: %dafny /compile:0 /print:"%t.print" /dprint:"%t.dprint" /warnShadowing "%s" > "%t"
+// RUN: %diff "%s.expect" "%t"
+
+module Module0 {
+ class C<alpha> {
+ method M<beta, beta>(x: beta) // error: duplicate type parameter
+ method P<alpha>(x: alpha) // shadowed type parameter
+ function F<beta, beta>(x: beta): int // error: duplicate type parameter
+ function G<alpha>(x: alpha): int // shadowed type parameter
+
+ method Q0(x: int) returns (x: int) // error: duplicate variable name
+ }
+}
+module Module1 {
+ class D {
+ method Q1(x: int) returns (y: int)
+ {
+ var x; // shadowed
+ var y; // error: duplicate
+ }
+
+ var f: int
+ method R()
+ {
+ var f; // okay
+ var f; // error: duplicate
+ }
+ method S()
+ {
+ var x;
+ {
+ var x; // shadow
+ }
+ }
+ method T()
+ {
+ var x;
+ ghost var b := forall x :: x < 10; // shadow
+ ghost var c := forall y :: forall y :: y != y + 1; // shadow
+ }
+ }
+}
diff --git a/Test/dafny0/Shadows.dfy.expect b/Test/dafny0/Shadows.dfy.expect new file mode 100644 index 00000000..5083ac64 --- /dev/null +++ b/Test/dafny0/Shadows.dfy.expect @@ -0,0 +1,12 @@ +Shadows.dfy(6,19): Error: Duplicate type-parameter name: beta
+Shadows.dfy(7,13): Warning: Shadowed type-parameter name: alpha
+Shadows.dfy(8,21): Error: Duplicate type-parameter name: beta
+Shadows.dfy(9,15): Warning: Shadowed type-parameter name: alpha
+Shadows.dfy(11,31): Error: Duplicate parameter name: x
+Shadows.dfy(18,10): Warning: Shadowed local-variable name: x
+Shadows.dfy(19,10): Error: Duplicate local-variable name: y
+Shadows.dfy(26,10): Error: Duplicate local-variable name: f
+Shadows.dfy(32,12): Warning: Shadowed local-variable name: x
+Shadows.dfy(38,28): Warning: Shadowed bound-variable name: x
+Shadows.dfy(39,40): Warning: Shadowed bound-variable name: y
+5 resolution/type errors detected in Shadows.dfy
|