diff options
Diffstat (limited to 'vendor/golang.org/x/tools/go/ssa/testdata/valueforexpr.go')
-rw-r--r-- | vendor/golang.org/x/tools/go/ssa/testdata/valueforexpr.go | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/vendor/golang.org/x/tools/go/ssa/testdata/valueforexpr.go b/vendor/golang.org/x/tools/go/ssa/testdata/valueforexpr.go new file mode 100644 index 0000000..4a2cb85 --- /dev/null +++ b/vendor/golang.org/x/tools/go/ssa/testdata/valueforexpr.go @@ -0,0 +1,152 @@ +//+build ignore + +package main + +// This file is the input to TestValueForExpr in source_test.go, which +// ensures that each expression e immediately following a /*@kind*/(x) +// annotation, when passed to Function.ValueForExpr(e), returns a +// non-nil Value of the same type as e and of kind 'kind'. + +func f(spilled, unspilled int) { + _ = /*@UnOp*/ (spilled) + _ = /*@Parameter*/ (unspilled) + _ = /*@<nil>*/ (1 + 2) // (constant) + i := 0 + + f := func() (int, int) { return 0, 0 } + + /*@Call*/ (print( /*@BinOp*/ (i + 1))) + _, _ = /*@Call*/ (f()) + ch := /*@MakeChan*/ (make(chan int)) + /*@UnOp*/ (<-ch) + x := /*@UnOp*/ (<-ch) + _ = x + select { + case /*@Extract*/ (<-ch): + case x := /*@Extract*/ (<-ch): + _ = x + } + defer /*@Function*/ (func() { + })() + go /*@Function*/ (func() { + })() + y := 0 + if true && /*@BinOp*/ (bool(y > 0)) { + y = 1 + } + _ = /*@Phi*/ (y) + map1 := /*@MakeMap*/ (make(map[string]string)) + _ = map1 + _ = /*@Slice*/ (make([]int, 0)) + _ = /*@MakeClosure*/ (func() { print(spilled) }) + + sl := []int{} + _ = /*@Slice*/ (sl[:0]) + + _ = /*@<nil>*/ (new(int)) // optimized away + tmp := /*@Alloc*/ (new(int)) + _ = tmp + var iface interface{} + _ = /*@TypeAssert*/ (iface.(int)) + _ = /*@UnOp*/ (sl[0]) + _ = /*@IndexAddr*/ (&sl[0]) + _ = /*@Index*/ ([2]int{}[0]) + var p *int + _ = /*@UnOp*/ (*p) + + _ = /*@UnOp*/ (global) + /*@UnOp*/ (global)[""] = "" + /*@Global*/ (global) = map[string]string{} + + var local t + /*UnOp*/ (local.x) = 1 + + // Exercise corner-cases of lvalues vs rvalues. + type N *N + var n N + /*@UnOp*/ (n) = /*@UnOp*/ (n) + /*@ChangeType*/ (n) = /*@Alloc*/ (&n) + /*@UnOp*/ (n) = /*@UnOp*/ (*n) + /*@UnOp*/ (n) = /*@UnOp*/ (**n) +} + +func complit() { + // Composite literals. + // We get different results for + // - composite literal as value (e.g. operand to print) + // - composite literal initializer for addressable value + // - composite literal value assigned to blank var + + // 1. Slices + print( /*@Slice*/ ([]int{})) + print( /*@Alloc*/ (&[]int{})) + print(& /*@Slice*/ ([]int{})) + + sl1 := /*@Slice*/ ([]int{}) + sl2 := /*@Alloc*/ (&[]int{}) + sl3 := & /*@Slice*/ ([]int{}) + _, _, _ = sl1, sl2, sl3 + + _ = /*@Slice*/ ([]int{}) + _ = /*@<nil>*/ (& /*@Slice*/ ([]int{})) // & optimized away + _ = & /*@Slice*/ ([]int{}) + + // 2. Arrays + print( /*@UnOp*/ ([1]int{})) + print( /*@Alloc*/ (&[1]int{})) + print(& /*@Alloc*/ ([1]int{})) + + arr1 := /*@Alloc*/ ([1]int{}) + arr2 := /*@Alloc*/ (&[1]int{}) + arr3 := & /*@Alloc*/ ([1]int{}) + _, _, _ = arr1, arr2, arr3 + + _ = /*@UnOp*/ ([1]int{}) + _ = /*@Alloc*/ (& /*@Alloc*/ ([1]int{})) + _ = & /*@Alloc*/ ([1]int{}) + + // 3. Maps + type M map[int]int + print( /*@MakeMap*/ (M{})) + print( /*@Alloc*/ (&M{})) + print(& /*@MakeMap*/ (M{})) + + m1 := /*@MakeMap*/ (M{}) + m2 := /*@Alloc*/ (&M{}) + m3 := & /*@MakeMap*/ (M{}) + _, _, _ = m1, m2, m3 + + _ = /*@MakeMap*/ (M{}) + _ = /*@<nil>*/ (& /*@MakeMap*/ (M{})) // & optimized away + _ = & /*@MakeMap*/ (M{}) + + // 4. Structs + print( /*@UnOp*/ (struct{}{})) + print( /*@Alloc*/ (&struct{}{})) + print(& /*@Alloc*/ (struct{}{})) + + s1 := /*@Alloc*/ (struct{}{}) + s2 := /*@Alloc*/ (&struct{}{}) + s3 := & /*@Alloc*/ (struct{}{}) + _, _, _ = s1, s2, s3 + + _ = /*@UnOp*/ (struct{}{}) + _ = /*@Alloc*/ (& /*@Alloc*/ (struct{}{})) + _ = & /*@Alloc*/ (struct{}{}) +} + +type t struct{ x int } + +// Ensure we can locate methods of named types. +func (t) f(param int) { + _ = /*@Parameter*/ (param) +} + +// Ensure we can locate init functions. +func init() { + m := /*@MakeMap*/ (make(map[string]string)) + _ = m +} + +// Ensure we can locate variables in initializer expressions. +var global = /*@MakeMap*/ (make(map[string]string)) |