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Commit 77334b98 authored by Robert Griesemer's avatar Robert Griesemer
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gofmt-ify reflect 

- the single line structs can be fixed in another round

R=rsc
http://go/go-review/1016052
parent 666afa1c
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Inline Side-by-side
Showing with 377 additions and 201 deletions
src/pkg/reflect/all_test.go
View file @ 77334b98
......@@ -13,7 +13,12 @@ import (
)
type integer int
type T struct { a int; b float64; c string; d *int }
type T struct {
a int;
b float64;
c string;
d *int;
}
type pair struct {
i interface{};
......@@ -21,7 +26,7 @@ type pair struct {
}
func isDigit(c uint8) bool {
return '0' <= c && c <= '9'
return '0' <= c && c <= '9';
}
func assert(t *testing.T, s, want string) {
......@@ -34,65 +39,180 @@ func typestring(i interface{}) string {
return Typeof(i).String();
}
var typeTests = []pair {
pair { struct { x int }{}, "int" },
pair { struct { x int8 }{}, "int8" },
pair { struct { x int16 }{}, "int16" },
pair { struct { x int32 }{}, "int32" },
pair { struct { x int64 }{}, "int64" },
pair { struct { x uint }{}, "uint" },
pair { struct { x uint8 }{}, "uint8" },
pair { struct { x uint16 }{}, "uint16" },
pair { struct { x uint32 }{}, "uint32" },
pair { struct { x uint64 }{}, "uint64" },
pair { struct { x float }{}, "float" },
pair { struct { x float32 }{}, "float32" },
pair { struct { x float64 }{}, "float64" },
pair { struct { x int8 }{}, "int8" },
pair { struct { x (**int8) }{}, "**int8" },
pair { struct { x (**integer) }{}, "**reflect_test.integer" },
pair { struct { x ([32]int32) }{}, "[32]int32" },
pair { struct { x ([]int8) }{}, "[]int8" },
pair { struct { x (map[string]int32) }{}, "map[string] int32" },
pair { struct { x (chan<-string) }{}, "chan<- string" },
pair { struct { x struct {c chan *int32; d float32} }{}, "struct { c chan *int32; d float32 }" },
pair { struct { x (func(a int8, b int32)) }{}, "func(int8, int32)" },
pair { struct { x struct {c func(chan *integer, *int8)} }{}, "struct { c func(chan *reflect_test.integer, *int8) }" },
pair { struct { x struct {a int8; b int32} }{}, "struct { a int8; b int32 }" },
pair { struct { x struct {a int8; b int8; c int32} }{}, "struct { a int8; b int8; c int32 }" },
pair { struct { x struct {a int8; b int8; c int8; d int32} }{}, "struct { a int8; b int8; c int8; d int32 }" },
pair { struct { x struct {a int8; b int8; c int8; d int8; e int32} }{}, "struct { a int8; b int8; c int8; d int8; e int32 }" },
pair { struct { x struct {a int8; b int8; c int8; d int8; e int8; f int32} }{}, "struct { a int8; b int8; c int8; d int8; e int8; f int32 }" },
pair { struct { x struct {a int8 "hi there"; } }{}, `struct { a int8 "hi there" }` },
pair { struct { x struct {a int8 "hi \x00there\t\n\"\\"; } }{}, `struct { a int8 "hi \x00there\t\n\"\\" }` },
pair { struct { x struct {f func(args ...)} }{}, "struct { f func(...) }" },
pair { struct { x (interface { a(func(func(int)(int))(func(func(int))(int))); b() }) }{}, "interface { a (func(func(int) (int)) (func(func(int)) (int))); b () }" },
}
var valueTests = []pair {
pair { (int8)(0), "8" },
pair { (int16)(0), "16" },
pair { (int32)(0), "32" },
pair { (int64)(0), "64" },
pair { (uint8)(0), "8" },
pair { (uint16)(0), "16" },
pair { (uint32)(0), "32" },
pair { (uint64)(0), "64" },
pair { (float32)(0), "32.1" },
pair { (float64)(0), "64.2" },
pair { (string)(""), "stringy cheese" },
pair { (bool)(false), "true" },
pair { (*int8)(nil), "*int8(0)" },
pair { (**int8)(nil), "**int8(0)" },
pair { ([5]int32){}, "[5]int32{0, 0, 0, 0, 0}" },
pair { (**integer)(nil), "**reflect_test.integer(0)" },
pair { (map[string]int32)(nil), "map[string] int32{<can't iterate on maps>}" },
pair { (chan<-string)(nil), "chan<- string" },
pair { (struct {c chan *int32; d float32}){}, "struct { c chan *int32; d float32 }{chan *int32, 0}" },
pair { (func(a int8, b int32))(nil), "func(int8, int32)(0)" },
pair { (struct {c func(chan *integer, *int8)}){}, "struct { c func(chan *reflect_test.integer, *int8) }{func(chan *reflect_test.integer, *int8)(0)}" },
pair { (struct {a int8; b int32}){}, "struct { a int8; b int32 }{0, 0}" },
pair { (struct {a int8; b int8; c int32}){}, "struct { a int8; b int8; c int32 }{0, 0, 0}" },
var typeTests = []pair{
pair{struct {
x int;
}{}, "int"},
pair{struct {
x int8;
}{}, "int8"},
pair{struct {
x int16;
}{}, "int16"},
pair{struct {
x int32;
}{}, "int32"},
pair{struct {
x int64;
}{}, "int64"},
pair{struct {
x uint;
}{}, "uint"},
pair{struct {
x uint8;
}{}, "uint8"},
pair{struct {
x uint16;
}{}, "uint16"},
pair{struct {
x uint32;
}{}, "uint32"},
pair{struct {
x uint64;
}{}, "uint64"},
pair{struct {
x float;
}{}, "float"},
pair{struct {
x float32;
}{}, "float32"},
pair{struct {
x float64;
}{}, "float64"},
pair{struct {
x int8;
}{}, "int8"},
pair{struct {
x (**int8);
}{}, "**int8"},
pair{struct {
x (**integer);
}{}, "**reflect_test.integer"},
pair{struct {
x ([32]int32);
}{}, "[32]int32"},
pair{struct {
x ([]int8);
}{}, "[]int8"},
pair{struct {
x (map[string]int32);
}{}, "map[string] int32"},
pair{struct {
x (chan<- string);
}{}, "chan<- string"},
pair{struct {
x struct {
c chan *int32;
d float32;
};
}{}, "struct { c chan *int32; d float32 }"},
pair{struct {
x (func(a int8, b int32));
}{}, "func(int8, int32)"},
pair{struct {
x struct {
c func(chan *integer, *int8);
};
}{}, "struct { c func(chan *reflect_test.integer, *int8) }"},
pair{struct {
x struct {
a int8;
b int32;
};
}{}, "struct { a int8; b int32 }"},
pair{struct {
x struct {
a int8;
b int8;
c int32;
};
}{}, "struct { a int8; b int8; c int32 }"},
pair{struct {
x struct {
a int8;
b int8;
c int8;
d int32;
};
}{}, "struct { a int8; b int8; c int8; d int32 }"},
pair{struct {
x struct {
a int8;
b int8;
c int8;
d int8;
e int32;
};
}{}, "struct { a int8; b int8; c int8; d int8; e int32 }"},
pair{struct {
x struct {
a int8;
b int8;
c int8;
d int8;
e int8;
f int32;
};
}{}, "struct { a int8; b int8; c int8; d int8; e int8; f int32 }"},
pair{struct {
x struct {
a int8 "hi there";
};
}{}, `struct { a int8 "hi there" }`},
pair{struct {
x struct {
a int8 "hi \x00there\t\n\"\\";
};
}{}, `struct { a int8 "hi \x00there\t\n\"\\" }`},
pair{struct {
x struct {
f func(args ...);
};
}{}, "struct { f func(...) }"},
pair{struct {
x (interface {
a(func(func(int) int) (func(func(int)) int));
b();
});
}{}, "interface { a (func(func(int) (int)) (func(func(int)) (int))); b () }"},
}
var valueTests = []pair{
pair{(int8)(0), "8"},
pair{(int16)(0), "16"},
pair{(int32)(0), "32"},
pair{(int64)(0), "64"},
pair{(uint8)(0), "8"},
pair{(uint16)(0), "16"},
pair{(uint32)(0), "32"},
pair{(uint64)(0), "64"},
pair{(float32)(0), "32.1"},
pair{(float64)(0), "64.2"},
pair{(string)(""), "stringy cheese"},
pair{(bool)(false), "true"},
pair{(*int8)(nil), "*int8(0)"},
pair{(**int8)(nil), "**int8(0)"},
pair{([5]int32){}, "[5]int32{0, 0, 0, 0, 0}"},
pair{(**integer)(nil), "**reflect_test.integer(0)"},
pair{(map[string]int32)(nil), "map[string] int32{<can't iterate on maps>}"},
pair{(chan<- string)(nil), "chan<- string"},
pair{(struct {
c chan *int32;
d float32;
}){}, "struct { c chan *int32; d float32 }{chan *int32, 0}"},
pair{(func(a int8, b int32))(nil), "func(int8, int32)(0)"},
pair{(struct {
c func(chan *integer, *int8);
}){}, "struct { c func(chan *reflect_test.integer, *int8) }{func(chan *reflect_test.integer, *int8)(0)}"},
pair{(struct {
a int8;
b int32;
}){}, "struct { a int8; b int32 }{0, 0}"},
pair{(struct {
a int8;
b int8;
c int32;
}){}, "struct { a int8; b int8; c int32 }{0, 0, 0}"},
}
func testType(t *testing.T, i int, typ Type, want string) {
......@@ -192,19 +312,19 @@ func TestSetValue(t *testing.T) {
}
}
var _i = 7;
var valueToStringTests = []pair {
pair { 123, "123" },
pair { 123.4, "123.4" },
pair { byte(123), "123" },
pair { "abc", "abc" },
pair { T{123, 456.75, "hello", &_i}, "reflect_test.T{123, 456.75, hello, *int(&7)}" },
pair { new(chan *T), "*chan *reflect_test.T(&chan *reflect_test.T)" },
pair { [10]int{1,2,3,4,5,6,7,8,9,10}, "[10]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}" },
pair { &[10]int{1,2,3,4,5,6,7,8,9,10}, "*[10]int(&[10]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10})" },
pair { []int{1,2,3,4,5,6,7,8,9,10}, "[]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}" },
pair { &[]int{1,2,3,4,5,6,7,8,9,10}, "*[]int(&[]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10})" }
var _i = 7
var valueToStringTests = []pair{
pair{123, "123"},
pair{123.4, "123.4"},
pair{byte(123), "123"},
pair{"abc", "abc"},
pair{T{123, 456.75, "hello", &_i}, "reflect_test.T{123, 456.75, hello, *int(&7)}"},
pair{new(chan *T), "*chan *reflect_test.T(&chan *reflect_test.T)"},
pair{[10]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, "[10]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}"},
pair{&[10]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, "*[10]int(&[10]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10})"},
pair{[]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, "[]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}"},
pair{&[]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, "*[]int(&[]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10})"},
}
func TestValueToString(t *testing.T) {
......@@ -217,7 +337,7 @@ func TestValueToString(t *testing.T) {
}
func TestArrayElemSet(t *testing.T) {
v := NewValue([10]int{1,2,3,4,5,6,7,8,9,10});
v := NewValue([10]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10});
v.(*ArrayValue).Elem(4).(*IntValue).Set(123);
s := valueToString(v);
const want = "[10]int{1, 2, 3, 4, 123, 6, 7, 8, 9, 10}";
......@@ -225,7 +345,7 @@ func TestArrayElemSet(t *testing.T) {
t.Errorf("[10]int: have %#q want %#q", s, want);
}
v = NewValue([]int{1,2,3,4,5,6,7,8,9,10});
v = NewValue([]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10});
v.(*SliceValue).Elem(4).(*IntValue).Set(123);
s = valueToString(v);
const want1 = "[]int{1, 2, 3, 4, 123, 6, 7, 8, 9, 10}";
......@@ -249,7 +369,10 @@ func TestAll(t *testing.T) { // TODO(r): wrap up better
testType(t, 1, Typeof((int8)(0)), "int8");
testType(t, 2, Typeof((*int8)(nil)).(*PtrType).Elem(), "int8");
typ := Typeof((*struct{c chan *int32; d float32})(nil));
typ := Typeof((*struct {
c chan *int32;
d float32;
})(nil));
testType(t, 3, typ, "*struct { c chan *int32; d float32 }");
etyp := typ.(*PtrType).Elem();
testType(t, 4, etyp, "struct { c chan *int32; d float32 }");
......@@ -278,17 +401,21 @@ func TestAll(t *testing.T) { // TODO(r): wrap up better
testType(t, 10, mtyp.Key(), "string");
testType(t, 11, mtyp.Elem(), "*int32");
typ = Typeof((chan<-string)(nil));
typ = Typeof((chan<- string)(nil));
testType(t, 12, typ, "chan<- string");
testType(t, 13, typ.(*ChanType).Elem(), "string");
// make sure tag strings are not part of element type
typ = Typeof(struct{d []uint32 "TAG"}{}).(*StructType).Field(0).Type;
typ = Typeof(struct {
d []uint32 "TAG";
}{}).(*StructType).Field(0).Type;
testType(t, 14, typ, "[]uint32");
}
func TestInterfaceGet(t *testing.T) {
var inter struct { e interface{ } };
var inter struct {
e interface{};
}
inter.e = 123.456;
v1 := NewValue(&inter);
v2 := v1.(*PtrValue).Elem().(*StructValue).Field(0);
......@@ -299,7 +426,9 @@ func TestInterfaceGet(t *testing.T) {
}
func TestInterfaceValue(t *testing.T) {
var inter struct { e interface{ } };
var inter struct {
e interface{};
}
inter.e = 123.456;
v1 := NewValue(&inter);
v2 := v1.(*PtrValue).Elem().(*StructValue).Field(0);
......@@ -322,9 +451,9 @@ func TestFunctionValue(t *testing.T) {
}
func TestCopyArray(t *testing.T) {
a := []int{ 1, 2, 3, 4, 10, 9, 8, 7 };
b := []int{ 11, 22, 33, 44, 1010, 99, 88, 77, 66, 55, 44 };
c := []int{ 11, 22, 33, 44, 1010, 99, 88, 77, 66, 55, 44 };
a := []int{1, 2, 3, 4, 10, 9, 8, 7};
b := []int{11, 22, 33, 44, 1010, 99, 88, 77, 66, 55, 44};
c := []int{11, 22, 33, 44, 1010, 99, 88, 77, 66, 55, 44};
va := NewValue(&a);
vb := NewValue(&b);
for i := 0; i < len(b); i++ {
......@@ -361,17 +490,22 @@ func TestCopyArray(t *testing.T) {
}
func TestBigUnnamedStruct(t *testing.T) {
b := struct{a,b,c,d int64}{1, 2, 3, 4};
b := struct {
a, b, c, d int64;
}{1, 2, 3, 4};
v := NewValue(b);
b1 := v.Interface().(struct{a,b,c,d int64});
b1 := v.Interface().(struct {
a, b, c, d int64;
});
if b1.a != b.a || b1.b != b.b || b1.c != b.c || b1.d != b.d {
t.Errorf("NewValue(%v).Interface().(*Big) = %v", b, b1);
}
}
type big struct {
a, b, c, d, e int64
a, b, c, d, e int64;
}
func TestBigStruct(t *testing.T) {
b := big{1, 2, 3, 4, 5};
v := NewValue(b);
......@@ -383,7 +517,7 @@ func TestBigStruct(t *testing.T) {
type Basic struct {
x int;
y float32
y float32;
}
type NotBasic Basic
......@@ -393,44 +527,44 @@ type DeepEqualTest struct {
eq bool;
}
var deepEqualTests = []DeepEqualTest {
var deepEqualTests = []DeepEqualTest{
// Equalities
DeepEqualTest{ 1, 1, true },
DeepEqualTest{ int32(1), int32(1), true },
DeepEqualTest{ 0.5, 0.5, true },
DeepEqualTest{ float32(0.5), float32(0.5), true },
DeepEqualTest{ "hello", "hello", true },
DeepEqualTest{ make([]int, 10), make([]int, 10), true },
DeepEqualTest{ &[3]int{ 1, 2, 3 }, &[3]int{ 1, 2, 3 }, true },
DeepEqualTest{ Basic{ 1, 0.5 }, Basic{ 1, 0.5 }, true },
DeepEqualTest{ os.Error(nil), os.Error(nil), true },
DeepEqualTest{ map[int]string{ 1:"one", 2:"two" }, map[int]string{ 2:"two", 1:"one" }, true },
DeepEqualTest{1, 1, true},
DeepEqualTest{int32(1), int32(1), true},
DeepEqualTest{0.5, 0.5, true},
DeepEqualTest{float32(0.5), float32(0.5), true},
DeepEqualTest{"hello", "hello", true},
DeepEqualTest{make([]int, 10), make([]int, 10), true},
DeepEqualTest{&[3]int{1, 2, 3}, &[3]int{1, 2, 3}, true},
DeepEqualTest{Basic{1, 0.5}, Basic{1, 0.5}, true},
DeepEqualTest{os.Error(nil), os.Error(nil), true},
DeepEqualTest{map[int]string{1: "one", 2: "two"}, map[int]string{2: "two", 1: "one"}, true},
// Inequalities
DeepEqualTest{ 1, 2, false },
DeepEqualTest{ int32(1), int32(2), false },
DeepEqualTest{ 0.5, 0.6, false },
DeepEqualTest{ float32(0.5), float32(0.6), false },
DeepEqualTest{ "hello", "hey", false },
DeepEqualTest{ make([]int, 10), make([]int, 11), false },
DeepEqualTest{ &[3]int{ 1, 2, 3 }, &[3]int{ 1, 2, 4 }, false },
DeepEqualTest{ Basic{ 1, 0.5 }, Basic{ 1, 0.6 }, false },
DeepEqualTest{ Basic{ 1, 0 }, Basic{ 2, 0 }, false },
DeepEqualTest{ map[int]string{ 1:"one", 3:"two" }, map[int]string{ 2:"two", 1:"one" }, false },
DeepEqualTest{ map[int]string{ 1:"one", 2:"txo" }, map[int]string{ 2:"two", 1:"one" }, false },
DeepEqualTest{ map[int]string{ 1:"one", }, map[int]string{ 2:"two", 1:"one" }, false },
DeepEqualTest{ map[int]string{ 2:"two", 1:"one" }, map[int]string{ 1:"one", }, false },
DeepEqualTest{ nil, 1, false },
DeepEqualTest{ 1, nil, false },
DeepEqualTest{1, 2, false},
DeepEqualTest{int32(1), int32(2), false},
DeepEqualTest{0.5, 0.6, false},
DeepEqualTest{float32(0.5), float32(0.6), false},
DeepEqualTest{"hello", "hey", false},
DeepEqualTest{make([]int, 10), make([]int, 11), false},
DeepEqualTest{&[3]int{1, 2, 3}, &[3]int{1, 2, 4}, false},
DeepEqualTest{Basic{1, 0.5}, Basic{1, 0.6}, false},
DeepEqualTest{Basic{1, 0}, Basic{2, 0}, false},
DeepEqualTest{map[int]string{1: "one", 3: "two"}, map[int]string{2: "two", 1: "one"}, false},
DeepEqualTest{map[int]string{1: "one", 2: "txo"}, map[int]string{2: "two", 1: "one"}, false},
DeepEqualTest{map[int]string{1: "one"}, map[int]string{2: "two", 1: "one"}, false},
DeepEqualTest{map[int]string{2: "two", 1: "one"}, map[int]string{1: "one"}, false},
DeepEqualTest{nil, 1, false},
DeepEqualTest{1, nil, false},
// Mismatched types
DeepEqualTest{ 1, 1.0, false },
DeepEqualTest{ int32(1), int64(1), false },
DeepEqualTest{ 0.5, "hello", false },
DeepEqualTest{ []int{ 1, 2, 3 }, [3]int{ 1, 2, 3 }, false },
DeepEqualTest{ &[3]interface{} { 1, 2, 4 }, &[3]interface{} { 1, 2, "s" }, false },
DeepEqualTest{ Basic{ 1, 0.5 }, NotBasic{ 1, 0.5 }, false },
DeepEqualTest{ map[uint]string{ 1:"one", 2:"two" }, map[int]string{ 2:"two", 1:"one" }, false },
DeepEqualTest{1, 1.0, false},
DeepEqualTest{int32(1), int64(1), false},
DeepEqualTest{0.5, "hello", false},
DeepEqualTest{[]int{1, 2, 3}, [3]int{1, 2, 3}, false},
DeepEqualTest{&[3]interface{}{1, 2, 4}, &[3]interface{}{1, 2, "s"}, false},
DeepEqualTest{Basic{1, 0.5}, NotBasic{1, 0.5}, false},
DeepEqualTest{map[uint]string{1: "one", 2: "two"}, map[int]string{2: "two", 1: "one"}, false},
}
func TestDeepEqual(t *testing.T) {
......@@ -456,13 +590,13 @@ func TestTypeof(t *testing.T) {
type Recursive struct {
x int;
r *Recursive
r *Recursive;
}
func TestDeepEqualRecursiveStruct(t *testing.T) {
a, b := new(Recursive), new(Recursive);
*a = Recursive{ 12, a };
*b = Recursive{ 12, b };
*a = Recursive{12, a};
*b = Recursive{12, b};
if !DeepEqual(a, b) {
t.Error("DeepEqual(recursive same) = false, want true");
}
......@@ -472,7 +606,7 @@ type Complex struct {
a int;
b [3]*Complex;
c *string;
d map[float]float
d map[float]float;
}
func TestDeepEqualComplexStruct(t *testing.T) {
......@@ -510,14 +644,14 @@ func check2ndField(x interface{}, offs uintptr, t *testing.T) {
// from the compiler itself.
func TestAlignment(t *testing.T) {
type T1inner struct {
a int
a int;
}
type T1 struct {
T1inner;
f int;
}
type T2inner struct {
a, b int
a, b int;
}
type T2 struct {
T2inner;
......@@ -525,86 +659,112 @@ func TestAlignment(t *testing.T) {
}
x := T1{T1inner{2}, 17};
check2ndField(x, uintptr(unsafe.Pointer(&x.f)) - uintptr(unsafe.Pointer(&x)), t);
check2ndField(x, uintptr(unsafe.Pointer(&x.f))-uintptr(unsafe.Pointer(&x)), t);
x1 := T2{T2inner{2, 3}, 17};
check2ndField(x1, uintptr(unsafe.Pointer(&x1.f)) - uintptr(unsafe.Pointer(&x1)), t);
check2ndField(x1, uintptr(unsafe.Pointer(&x1.f))-uintptr(unsafe.Pointer(&x1)), t);
}
type IsNiller interface {
IsNil() bool
IsNil() bool;
}
func Nil(a interface{}, t *testing.T) {
n := NewValue(a).(*StructValue).Field(0).(IsNiller);
if !n.IsNil() {
t.Errorf("%v should be nil", a)
t.Errorf("%v should be nil", a);
}
}
func NotNil(a interface{}, t *testing.T) {
n := NewValue(a).(*StructValue).Field(0).(IsNiller);
if n.IsNil() {
t.Errorf("value of type %v should not be nil", NewValue(a).Type().String())
t.Errorf("value of type %v should not be nil", NewValue(a).Type().String());
}
}
func TestIsNil(t *testing.T) {
// These do not implement IsNil
doNotNil := []interface{}{ int(0), float32(0), struct{a int}{} };
doNotNil := []interface{}{int(0), float32(0), struct {
a int;
}{}};
for _, ts := range doNotNil {
ty := Typeof(ts);
v := MakeZero(ty);
if _, ok := v.(IsNiller); ok {
t.Errorf("%s is nilable; should not be", ts)
t.Errorf("%s is nilable; should not be", ts);
}
}
// These do implement IsNil.
// Wrap in extra struct to hide interface type.
doNil := []interface{}{
struct{x *int}{},
struct{x interface{}}{},
struct{x map[string]int}{},
struct{x func()bool}{},
struct{x chan int}{},
struct{x []string}{}
struct {
x *int;
}{},
struct {
x interface{};
}{},
struct {
x map[string]int;
}{},
struct {
x func() bool;
}{},
struct {
x chan int;
}{},
struct {
x []string;
}{},
};
for _, ts := range doNil {
ty := Typeof(ts).(*StructType).Field(0).Type;
v := MakeZero(ty);
if _, ok := v.(IsNiller); !ok {
t.Errorf("%s %T is not nilable; should be", ts, v)
t.Errorf("%s %T is not nilable; should be", ts, v);
}
}
// Check the implementations
var pi struct {x *int}
var pi struct {
x *int;
}
Nil(pi, t);
pi.x = new(int);
NotNil(pi, t);
var si struct {x []int}
var si struct {
x []int;
}
Nil(si, t);
si.x = make([]int, 10);
NotNil(si, t);
var ci struct {x chan int}
var ci struct {
x chan int;
}
Nil(ci, t);
ci.x = make(chan int);
NotNil(ci, t);
var mi struct {x map[int]int}
var mi struct {
x map[int]int;
}
Nil(mi, t);
mi.x = make(map[int]int);
NotNil(mi, t);
var ii struct {x interface {}}
var ii struct {
x interface{};
}
Nil(ii, t);
ii.x = 2;
NotNil(ii, t);
var fi struct {x func(t *testing.T)}
var fi struct {
x func(t *testing.T);
}
Nil(fi, t);
fi.x = TestIsNil;
NotNil(fi, t);
......@@ -658,7 +818,7 @@ func TestNilPtrValueSub(t *testing.T) {
}
func TestMap(t *testing.T) {
m := map[string]int{ "a": 1, "b": 2 };
m := map[string]int{"a": 1, "b": 2};
mv := NewValue(m).(*MapValue);
if n := mv.Len(); n != len(m) {
t.Errorf("Len = %d, want %d", n, len(m));
......@@ -816,7 +976,7 @@ func TestChan(t *testing.T) {
// Difficult test for function call because of
// implicit padding between arguments.
func dummy(b byte, c int, d byte) (i byte, j int, k byte){
func dummy(b byte, c int, d byte) (i byte, j int, k byte) {
return b, c, d;
}
......@@ -839,7 +999,7 @@ type Point struct {
}
func (p Point) Dist(scale int) int {
return p.x*p.x*scale + p.y*p.y*scale;
return p.x * p.x * scale + p.y * p.y * scale;
}
func TestMethod(t *testing.T) {
......@@ -860,7 +1020,11 @@ func TestMethod(t *testing.T) {
// Have to wrap interface value in a struct to get at it.
// Passing it to NewValue directly would
// access the underlying Point, not the interface.
var s = struct{x interface{Dist(int) int}}{p};
var s = struct {
x interface {
Dist(int) int;
};
}{p};
pv := NewValue(s).(*StructValue).Field(0);
i = pv.Method(0).Call([]Value{NewValue(10)})[0].(*IntValue).Get();
if i != 250 {
......@@ -872,8 +1036,10 @@ func TestInterfaceSet(t *testing.T) {
p := &Point{3, 4};
var s struct {
I interface {};
P interface { Dist(int)int };
I interface{};
P interface {
Dist(int) int;
};
}
sv := NewValue(&s).(*PtrValue).Elem().(*StructValue);
sv.Field(0).(*InterfaceValue).Set(NewValue(p));
......@@ -893,7 +1059,10 @@ func TestInterfaceSet(t *testing.T) {
}
}
type T1 struct { a string; int; }
type T1 struct {
a string;
int;
}
func TestAnonymousFields(t *testing.T) {
var field StructField;
......@@ -958,27 +1127,27 @@ type S4 struct {
a int;
}
var fieldTests = []FTest {
FTest{ struct{ }{}, "", nil, 0 },
FTest{ struct{ }{}, "foo", nil, 0 },
FTest{ S0{a: 'a'}, "a", []int{0}, 'a' },
FTest{ S0{}, "d", nil, 0 },
FTest{ S1{S0: S0{a: 'a'}}, "a", []int{1, 0}, 'a' },
FTest{ S1{b: 'b'}, "b", []int{0}, 'b' },
FTest{ S1{}, "S0", []int{1}, 0 },
FTest{ S1{S0: S0{c: 'c'}}, "c", []int{1, 2}, 'c' },
FTest{ S2{a: 'a'}, "a", []int{0}, 'a' },
FTest{ S2{}, "S1", []int{1}, 0 },
FTest{ S2{S1: &S1{b: 'b'}}, "b", []int{1, 0}, 'b' },
FTest{ S2{S1: &S1{S0: S0{c: 'c'}}}, "c", []int{1, 1, 2}, 'c' },
FTest{ S2{}, "d", nil, 0 },
FTest{ S3{}, "S1", nil, 0 },
FTest{ S3{S2: S2{a: 'a'}}, "a", []int{1, 0}, 'a' },
FTest{ S3{}, "b", nil, 0 },
FTest{ S3{d: 'd'}, "d", []int{2}, 0 },
FTest{ S3{e: 'e'}, "e", []int{3}, 'e' },
FTest{ S4{a: 'a'}, "a", []int{1}, 'a' },
FTest{ S4{}, "b", nil, 0 },
var fieldTests = []FTest{
FTest{struct{}{}, "", nil, 0},
FTest{struct{}{}, "foo", nil, 0},
FTest{S0{a: 'a'}, "a", []int{0}, 'a'},
FTest{S0{}, "d", nil, 0},
FTest{S1{S0: S0{a: 'a'}}, "a", []int{1, 0}, 'a'},
FTest{S1{b: 'b'}, "b", []int{0}, 'b'},
FTest{S1{}, "S0", []int{1}, 0},
FTest{S1{S0: S0{c: 'c'}}, "c", []int{1, 2}, 'c'},
FTest{S2{a: 'a'}, "a", []int{0}, 'a'},
FTest{S2{}, "S1", []int{1}, 0},
FTest{S2{S1: &S1{b: 'b'}}, "b", []int{1, 0}, 'b'},
FTest{S2{S1: &S1{S0: S0{c: 'c'}}}, "c", []int{1, 1, 2}, 'c'},
FTest{S2{}, "d", nil, 0},
FTest{S3{}, "S1", nil, 0},
FTest{S3{S2: S2{a: 'a'}}, "a", []int{1, 0}, 'a'},
FTest{S3{}, "b", nil, 0},
FTest{S3{d: 'd'}, "d", []int{2}, 0},
FTest{S3{e: 'e'}, "e", []int{3}, 'e'},
FTest{S4{a: 'a'}, "a", []int{1}, 'a'},
FTest{S4{}, "b", nil, 0},
}
func TestFieldByIndex(t *testing.T) {
......
src/pkg/reflect/value.go
View file @ 77334b98
......@@ -11,6 +11,7 @@ import (
const ptrSize = uintptr(unsafe.Sizeof((*byte)(nil)))
const cannotSet = "cannot set value obtained via unexported struct field"
type addr unsafe.Pointer
// TODO: This will have to go away when
......@@ -26,7 +27,7 @@ func memmove(adst, asrc addr, n uintptr) {
i--;
*(*byte)(addr(dst+i)) = *(*byte)(addr(src+i));
}
case (n|src|dst) & (ptrSize-1) != 0:
case (n|src|dst)&(ptrSize-1) != 0:
// byte copy forward
for i := uintptr(0); i < n; i++ {
*(*byte)(addr(dst+i)) = *(*byte)(addr(src+i));
......@@ -80,7 +81,7 @@ type value struct {
}
func (v *value) Type() Type {
return v.typ
return v.typ;
}
func (v *value) Addr() uintptr {
......@@ -99,10 +100,12 @@ func (v *value) Interface() interface{} {
// to extract correctly.
if typ.NumMethod() == 0 {
// Extract as interface value without methods.
return *(*interface{})(v.addr)
return *(*interface{})(v.addr);
}
// Extract from v.addr as interface value with methods.
return *(*interface{ m() })(v.addr)
return *(*interface {
m();
})(v.addr);
}
return unsafe.Unreflect(v.typ, unsafe.Pointer(v.addr));
}
......@@ -549,7 +552,7 @@ func ArrayCopy(dst, src ArrayOrSliceValue) int {
// An ArrayValue represents an array.
type ArrayValue struct {
value
value;
}
// Len returns the length of the array.
......@@ -589,7 +592,7 @@ func (v *ArrayValue) Elem(i int) Value {
if i < 0 || i >= n {
panic("index", i, "in array len", n);
}
p := addr(uintptr(v.addr()) + uintptr(i)*typ.Size());
p := addr(uintptr(v.addr()) + uintptr(i) * typ.Size());
return newValue(typ, p, v.canSet);
}
......@@ -606,7 +609,7 @@ type SliceHeader struct {
// A SliceValue represents a slice.
type SliceValue struct {
value
value;
}
func (v *SliceValue) slice() *SliceHeader {
......@@ -667,8 +670,8 @@ func (v *SliceValue) Slice(beg, end int) *SliceValue {
typ := v.typ.(*SliceType);
s := new(SliceHeader);
s.Data = uintptr(v.addr()) + uintptr(beg) * typ.Elem().Size();
s.Len = end - beg;
s.Cap = cap - beg;
s.Len = end-beg;
s.Cap = cap-beg;
return newValue(typ, addr(s), v.canSet).(*SliceValue);
}
......@@ -679,7 +682,7 @@ func (v *SliceValue) Elem(i int) Value {
if i < 0 || i >= n {
panicln("index", i, "in array of length", n);
}
p := addr(uintptr(v.addr()) + uintptr(i)*typ.Size());
p := addr(uintptr(v.addr()) + uintptr(i) * typ.Size());
return newValue(typ, p, v.canSet);
}
......@@ -704,7 +707,7 @@ func MakeSlice(typ *SliceType, len, cap int) *SliceValue {
// A ChanValue represents a chan.
type ChanValue struct {
value
value;
}
// IsNil returns whether v is a nil channel.
......@@ -767,7 +770,7 @@ func (v *ChanValue) Cap() int {
// internal send; non-blocking if b != nil
func (v *ChanValue) send(x Value, b *bool) {
t := v.Type().(*ChanType);
if t.Dir() & SendDir == 0{
if t.Dir() & SendDir == 0 {
panic("send on recv-only channel");
}
typesMustMatch(t.Elem(), x.Type());
......@@ -884,7 +887,9 @@ func (v *value) Method(i int) *FuncValue {
// implemented in ../pkg/runtime/*/asm.s
func call(fn, arg *byte, n uint32)
type tiny struct { b byte }
type tiny struct {
b byte;
}
// Call calls the function v with input parameters in.
// It returns the function's output parameters as Values.
......@@ -913,14 +918,14 @@ func (fv *FuncValue) Call(in []Value) []Value {
for i := 0; i < nin; i++ {
tv := t.In(i);
a := uintptr(tv.Align());
size = (size + a - 1) &^ (a - 1);
size = (size+a-1)&^(a-1);
size += tv.Size();
}
size = (size + structAlign - 1) &^ (structAlign - 1);
size = (size + structAlign - 1)&^(structAlign - 1);
for i := 0; i < nout; i++ {
tv := t.Out(i);
a := uintptr(tv.Align());
size = (size + a - 1) &^ (a - 1);
size = (size+a-1)&^(a-1);
size += tv.Size();
}
......@@ -961,12 +966,12 @@ func (fv *FuncValue) Call(in []Value) []Value {
tv := v.Type();
typesMustMatch(t.In(i+delta), tv);
a := uintptr(tv.Align());
off = (off + a - 1) &^ (a - 1);
off = (off+a-1)&^(a-1);
n := tv.Size();
memmove(addr(ptr+off), v.getAddr(), n);
off += n;
}
off = (off + structAlign - 1) &^ (structAlign - 1);
off = (off + structAlign - 1)&^(structAlign - 1);
// Call
call(*(**byte)(fv.addr), (*byte)(addr(ptr)), uint32(size));
......@@ -978,7 +983,7 @@ func (fv *FuncValue) Call(in []Value) []Value {
for i := 0; i < nout; i++ {
tv := t.Out(i);
a := uintptr(tv.Align());
off = (off + a - 1) &^ (a - 1);
off = (off+a-1)&^(a-1);
v := MakeZero(tv);
n := tv.Size();
memmove(v.getAddr(), addr(ptr+off), n);
......@@ -995,7 +1000,7 @@ func (fv *FuncValue) Call(in []Value) []Value {
// An InterfaceValue represents an interface value.
type InterfaceValue struct {
value
value;
}
// No Get because v.Interface() is available.
......@@ -1063,7 +1068,7 @@ func (v *InterfaceValue) Method(i int) *FuncValue {
// A MapValue represents a map value.
type MapValue struct {
value
value;
}
// IsNil returns whether v is a nil map value.
......@@ -1141,7 +1146,7 @@ func (v *MapValue) Keys() []Value {
m := *(**byte)(v.addr);
mlen := int32(0);
if m != nil {
mlen = maplen(m)
mlen = maplen(m);
}
it := mapiterinit(m);
a := make([]Value, mlen);
......@@ -1170,7 +1175,7 @@ func MakeMap(typ *MapType) *MapValue {
// A PtrValue represents a pointer.
type PtrValue struct {
value
value;
}
// IsNil returns whether v is a nil pointer.
......@@ -1237,7 +1242,7 @@ func Indirect(v Value) Value {
// A StructValue represents a struct value.
type StructValue struct {
value
value;
}
// Set assigns x to v.
......@@ -1264,7 +1269,7 @@ func (v *StructValue) Field(i int) Value {
return nil;
}
f := t.Field(i);
return newValue(f.Type, addr(uintptr(v.addr)+f.Offset), v.canSet && f.PkgPath == "");
return newValue(f.Type, addr(uintptr(v.addr) + f.Offset), v.canSet && f.PkgPath == "");
}
// FieldByIndex returns the nested field corresponding to index.
......@@ -1329,7 +1334,9 @@ func newValue(typ Type, addr addr, canSet bool) Value {
// All values have same memory layout;
// build once and convert.
v := &struct{value}{value{typ, addr, canSet}};
v := &struct {
value;
}{value{typ, addr, canSet}};
switch typ.(type) {
case *ArrayType:
// TODO(rsc): Something must prevent
......
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