func TestEvalAddrAndCast(t *testing.T) {
withTestProcess("testvariables3", t, func(p *proc.Process, fixture protest.Fixture) {
assertNoError(p.Continue(), t, "Continue() returned an error")
c1addr, err := evalVariable(p, "&c1")
assertNoError(err, t, "EvalExpression(&c1)")
c1addrstr := api.ConvertVar(c1addr).SinglelineString()
t.Logf("&c1 → %s", c1addrstr)
if !strings.HasPrefix(c1addrstr, "(*main.cstruct)(0x") {
t.Fatalf("Invalid value of EvalExpression(&c1) \"%s\"", c1addrstr)
}
aaddr, err := evalVariable(p, "&(c1.pb.a)")
assertNoError(err, t, "EvalExpression(&(c1.pb.a))")
aaddrstr := api.ConvertVar(aaddr).SinglelineString()
t.Logf("&(c1.pb.a) → %s", aaddrstr)
if !strings.HasPrefix(aaddrstr, "(*main.astruct)(0x") {
t.Fatalf("invalid value of EvalExpression(&(c1.pb.a)) \"%s\"", aaddrstr)
}
a, err := evalVariable(p, "*"+aaddrstr)
assertNoError(err, t, fmt.Sprintf("EvalExpression(*%s)", aaddrstr))
t.Logf("*%s → %s", aaddrstr, api.ConvertVar(a).SinglelineString())
assertVariable(t, a, varTest{aaddrstr, false, "struct main.astruct {A: 1, B: 2}", "", "struct main.astruct", nil})
})
}
func TestMapEvaluation(t *testing.T) {
withTestProcess("testvariables3", t, func(p *proc.Process, fixture protest.Fixture) {
assertNoError(p.Continue(), t, "Continue() returned an error")
m1v, err := evalVariable(p, "m1")
assertNoError(err, t, "EvalVariable()")
m1 := api.ConvertVar(m1v)
t.Logf("m1 = %v", m1.MultilineString(""))
if m1.Type != "map[string]main.astruct" {
t.Fatalf("Wrong type: %s", m1.Type)
}
if len(m1.Children)/2 != 41 {
t.Fatalf("Wrong number of children: %d", len(m1.Children)/2)
}
found := false
for i := range m1.Children {
if i%2 == 0 && m1.Children[i].Value == "Malone" {
found = true
}
}
if !found {
t.Fatalf("Could not find Malone")
}
m1sliced, err := evalVariable(p, "m1[10:]")
assertNoError(err, t, "EvalVariable(m1[10:])")
if len(m1sliced.Children)/2 != int(m1.Len-10) {
t.Fatalf("Wrong number of children (after slicing): %d", len(m1sliced.Children)/2)
}
})
}
func convertVars(pv []*proc.Variable) []api.Variable {
vars := make([]api.Variable, 0, len(pv))
for _, v := range pv {
vars = append(vars, api.ConvertVar(v))
}
return vars
}
func (d *Debugger) PackageVariables(threadID int, filter string) ([]api.Variable, error) {
regex, err := regexp.Compile(filter)
if err != nil {
return nil, fmt.Errorf("invalid filter argument: %s", err.Error())
}
vars := []api.Variable{}
thread, found := d.process.Threads[threadID]
if !found {
return nil, fmt.Errorf("couldn't find thread %d", threadID)
}
scope, err := thread.Scope()
if err != nil {
return nil, err
}
pv, err := scope.PackageVariables()
if err != nil {
return nil, err
}
for _, v := range pv {
if regex.Match([]byte(v.Name)) {
vars = append(vars, api.ConvertVar(v))
}
}
return vars, err
}
func TestUnsafePointer(t *testing.T) {
withTestProcess("testvariables3", t, func(p *proc.Process, fixture protest.Fixture) {
assertNoError(p.Continue(), t, "Continue() returned an error")
up1v, err := evalVariable(p, "up1")
assertNoError(err, t, "EvalVariable(up1)")
up1 := api.ConvertVar(up1v)
if ss := up1.SinglelineString(); !strings.HasPrefix(ss, "unsafe.Pointer(") {
t.Fatalf("wrong value for up1: %s", ss)
}
})
}
// EvalVariableInScope will attempt to evaluate the variable represented by 'symbol'
// in the scope provided.
func (d *Debugger) EvalVariableInScope(scope api.EvalScope, symbol string) (*api.Variable, error) {
s, err := d.process.ConvertEvalScope(scope.GoroutineID, scope.Frame)
if err != nil {
return nil, err
}
v, err := s.EvalVariable(symbol)
if err != nil {
return nil, err
}
return api.ConvertVar(v), err
}
func functionArguments(s *proc.EvalScope) ([]api.Variable, error) {
pv, err := s.FunctionArguments()
if err != nil {
return nil, err
}
vars := make([]api.Variable, 0, len(pv))
for _, v := range pv {
vars = append(vars, api.ConvertVar(v))
}
return vars, nil
}
func (d *Debugger) EvalVariableInThread(threadID int, symbol string) (*api.Variable, error) {
thread, found := d.process.Threads[threadID]
if !found {
return nil, fmt.Errorf("couldn't find thread %d", threadID)
}
v, err := thread.EvalVariable(symbol)
if err != nil {
return nil, err
}
converted := api.ConvertVar(v)
return &converted, err
}
// EvalVariableInScope will attempt to evaluate the variable represented by 'symbol'
// in the scope provided.
func (d *Debugger) EvalVariableInScope(scope api.EvalScope, symbol string, cfg proc.LoadConfig) (*api.Variable, error) {
d.processMutex.Lock()
defer d.processMutex.Unlock()
s, err := d.process.ConvertEvalScope(scope.GoroutineID, scope.Frame)
if err != nil {
return nil, err
}
v, err := s.EvalVariable(symbol, cfg)
if err != nil {
return nil, err
}
return api.ConvertVar(v), err
}
func (d *Debugger) collectBreakpointInformation(state *api.DebuggerState) error {
if state == nil || state.Breakpoint == nil {
return nil
}
bp := state.Breakpoint
bpi := &api.BreakpointInfo{}
state.BreakpointInfo = bpi
if bp.Goroutine {
g, err := d.process.CurrentThread.GetG()
if err != nil {
return err
}
bpi.Goroutine = api.ConvertGoroutine(g)
}
if bp.Stacktrace > 0 {
rawlocs, err := d.process.CurrentThread.Stacktrace(bp.Stacktrace)
if err != nil {
return err
}
bpi.Stacktrace, err = d.convertStacktrace(rawlocs, false)
if err != nil {
return err
}
}
s, err := d.process.CurrentThread.Scope()
if err != nil {
return err
}
if len(bp.Variables) > 0 {
bpi.Variables = make([]api.Variable, len(bp.Variables))
}
for i := range bp.Variables {
v, err := s.EvalVariable(bp.Variables[i])
if err != nil {
return err
}
bpi.Variables[i] = api.ConvertVar(v)
}
vars, err := functionArguments(s)
if err == nil {
bpi.Arguments = vars
}
return nil
}
func (d *Debugger) FunctionArguments(threadID int) ([]api.Variable, error) {
vars := []api.Variable{}
thread, found := d.process.Threads[threadID]
if !found {
return nil, fmt.Errorf("couldn't find thread %d", threadID)
}
pv, err := thread.FunctionArguments()
if err != nil {
return nil, err
}
for _, v := range pv {
vars = append(vars, api.ConvertVar(v))
}
return vars, err
}
func (d *Debugger) LocalVariables(scope api.EvalScope) ([]api.Variable, error) {
s, err := d.process.ConvertEvalScope(scope.GoroutineID, scope.Frame)
if err != nil {
return nil, err
}
pv, err := s.LocalVariables()
if err != nil {
return nil, err
}
vars := make([]api.Variable, 0, len(pv))
for _, v := range pv {
vars = append(vars, api.ConvertVar(v))
}
return vars, err
}
func TestMultilineVariableEvaluation(t *testing.T) {
testcases := []varTest{
{"a1", true, "\"foofoofoofoofoofoo\"", "", "struct string", nil},
{"a11", true, `[3]main.FooBar [
{Baz: 1, Bur: "a"},
{Baz: 2, Bur: "b"},
{Baz: 3, Bur: "c"},
]`, "", "[3]main.FooBar", nil},
{"a12", true, `[]main.FooBar len: 2, cap: 2, [
{Baz: 4, Bur: "d"},
{Baz: 5, Bur: "e"},
]`, "", "struct []main.FooBar", nil},
{"a13", true, `[]*main.FooBar len: 3, cap: 3, [
*{Baz: 6, Bur: "f"},
*{Baz: 7, Bur: "g"},
*{Baz: 8, Bur: "h"},
]`, "", "struct []*main.FooBar", nil},
{"a2", true, "6", "10", "int", nil},
{"a4", true, "[2]int [1,2]", "", "[2]int", nil},
{"a5", true, "[]int len: 5, cap: 5, [1,2,3,4,5]", "", "struct []int", nil},
{"a6", true, "main.FooBar {Baz: 8, Bur: \"word\"}", "", "main.FooBar", nil},
{"a7", true, "*main.FooBar {Baz: 5, Bur: \"strum\"}", "", "*main.FooBar", nil},
{"a8", true, "main.FooBar2 {Bur: 10, Baz: \"feh\"}", "", "main.FooBar2", nil},
{"a9", true, "*main.FooBar nil", "", "*main.FooBar", nil},
{"a8", true, "main.FooBar2 {Bur: 10, Baz: \"feh\"}", "", "main.FooBar2", nil}, // reread variable after member
{"i32", true, "[2]int32 [1,2]", "", "[2]int32", nil},
{"ba", true, "[]int len: 200, cap: 200, [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,...+136 more]", "", "struct []int", nil},
{"ms", true, `main.Nest {
Level: 0,
Nest: *main.Nest {
Level: 1,
Nest: *(*main.Nest)(…`, "", "main.Nest", nil},
}
withTestProcess("testvariables", t, func(p *proc.Process, fixture protest.Fixture) {
err := p.Continue()
assertNoError(err, t, "Continue() returned an error")
for _, tc := range testcases {
variable, err := evalVariable(p, tc.name)
assertNoError(err, t, "EvalVariable() returned an error")
if ms := api.ConvertVar(variable).MultilineString(""); !matchStringOrPrefix(ms, tc.value) {
t.Fatalf("Expected %s got %s (variable %s)\n", tc.value, ms, variable.Name)
}
}
})
}
func assertVariable(t *testing.T, variable *proc.Variable, expected varTest) {
if expected.preserveName {
if variable.Name != expected.name {
t.Fatalf("Expected %s got %s\n", expected.name, variable.Name)
}
}
cv := api.ConvertVar(variable)
if cv.Type != expected.varType {
t.Fatalf("Expected %s got %s (for variable %s)\n", expected.varType, cv.Type, expected.name)
}
if ss := cv.SinglelineString(); !matchStringOrPrefix(ss, expected.value) {
t.Fatalf("Expected %#v got %#v (for variable %s)\n", expected.value, ss, expected.name)
}
}
func TestComplexSetting(t *testing.T) {
withTestProcess("testvariables", t, func(p *proc.Process, fixture protest.Fixture) {
err := p.Continue()
assertNoError(err, t, "Continue() returned an error")
h := func(setExpr, value string) {
assertNoError(setVariable(p, "c128", setExpr), t, "SetVariable()")
variable, err := evalVariable(p, "c128")
assertNoError(err, t, "EvalVariable()")
if s := api.ConvertVar(variable).SinglelineString(); s != value {
t.Fatalf("Wrong value of c128: \"%s\", expected \"%s\" after setting it to \"%s\"", s, value, setExpr)
}
}
h("3.2i", "(0 + 3.2i)")
h("1.1", "(1.1 + 0i)")
h("1 + 3.3i", "(1 + 3.3i)")
h("complex(1.2, 3.4)", "(1.2 + 3.4i)")
})
}
func TestVariableEvaluation(t *testing.T) {
testcases := []varTest{
{"a1", true, "\"foofoofoofoofoofoo\"", "", "struct string", nil},
{"a11", true, "[3]main.FooBar [{Baz: 1, Bur: \"a\"},{Baz: 2, Bur: \"b\"},{Baz: 3, Bur: \"c\"}]", "", "[3]main.FooBar", nil},
{"a12", true, "[]main.FooBar len: 2, cap: 2, [{Baz: 4, Bur: \"d\"},{Baz: 5, Bur: \"e\"}]", "", "struct []main.FooBar", nil},
{"a13", true, "[]*main.FooBar len: 3, cap: 3, [*{Baz: 6, Bur: \"f\"},*{Baz: 7, Bur: \"g\"},*{Baz: 8, Bur: \"h\"}]", "", "struct []*main.FooBar", nil},
{"a2", true, "6", "10", "int", nil},
{"a3", true, "7.23", "3.1", "float64", nil},
{"a4", true, "[2]int [1,2]", "", "[2]int", nil},
{"a5", true, "[]int len: 5, cap: 5, [1,2,3,4,5]", "", "struct []int", nil},
{"a6", true, "main.FooBar {Baz: 8, Bur: \"word\"}", "", "main.FooBar", nil},
{"a7", true, "*main.FooBar {Baz: 5, Bur: \"strum\"}", "", "*main.FooBar", nil},
{"a8", true, "main.FooBar2 {Bur: 10, Baz: \"feh\"}", "", "main.FooBar2", nil},
{"a9", true, "*main.FooBar nil", "", "*main.FooBar", nil},
{"baz", true, "\"bazburzum\"", "", "struct string", nil},
{"neg", true, "-1", "-20", "int", nil},
{"f32", true, "1.2", "1.1", "float32", nil},
{"c64", true, "(1 + 2i)", "(4 + 5i)", "complex64", nil},
{"c128", true, "(2 + 3i)", "(6.3 + 7i)", "complex128", nil},
{"a6.Baz", true, "8", "20", "int", nil},
{"a7.Baz", true, "5", "25", "int", nil},
{"a8.Baz", true, "\"feh\"", "", "struct string", nil},
{"a9.Baz", true, "nil", "", "int", fmt.Errorf("a9 is nil")},
{"a9.NonExistent", true, "nil", "", "int", fmt.Errorf("a9 has no member NonExistent")},
{"a8", true, "main.FooBar2 {Bur: 10, Baz: \"feh\"}", "", "main.FooBar2", nil}, // reread variable after member
{"i32", true, "[2]int32 [1,2]", "", "[2]int32", nil},
{"b1", true, "true", "false", "bool", nil},
{"b2", true, "false", "true", "bool", nil},
{"i8", true, "1", "2", "int8", nil},
{"u16", true, "65535", "0", "uint16", nil},
{"u32", true, "4294967295", "1", "uint32", nil},
{"u64", true, "18446744073709551615", "2", "uint64", nil},
{"u8", true, "255", "3", "uint8", nil},
{"up", true, "5", "4", "uintptr", nil},
{"f", true, "main.barfoo", "", "func()", nil},
{"ba", true, "[]int len: 200, cap: 200, [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,...+136 more]", "", "struct []int", nil},
{"ms", true, "main.Nest {Level: 0, Nest: *main.Nest {Level: 1, Nest: *(*main.Nest)(…", "", "main.Nest", nil},
{"ms.Nest.Nest", true, "*main.Nest {Level: 2, Nest: *main.Nest {Level: 3, Nest: *(*main.Nest)(…", "", "*main.Nest", nil},
{"ms.Nest.Nest.Nest.Nest.Nest", true, "*main.Nest nil", "", "*main.Nest", nil},
{"ms.Nest.Nest.Nest.Nest.Nest.Nest", true, "", "", "*main.Nest", fmt.Errorf("ms.Nest.Nest.Nest.Nest.Nest is nil")},
{"main.p1", true, "10", "12", "int", nil},
{"p1", true, "10", "13", "int", nil},
{"NonExistent", true, "", "", "", fmt.Errorf("could not find symbol value for NonExistent")},
}
withTestProcess("testvariables", t, func(p *proc.Process, fixture protest.Fixture) {
err := p.Continue()
assertNoError(err, t, "Continue() returned an error")
for _, tc := range testcases {
variable, err := evalVariable(p, tc.name)
if tc.err == nil {
assertNoError(err, t, "EvalVariable() returned an error")
assertVariable(t, variable, tc)
} else {
if err == nil {
t.Fatalf("Expected error %s, got no error: %s\n", tc.err.Error(), api.ConvertVar(variable).SinglelineString())
}
if tc.err.Error() != err.Error() {
t.Fatalf("Unexpected error. Expected %s got %s", tc.err.Error(), err.Error())
}
}
if tc.settable() {
assertNoError(setVariable(p, tc.name, tc.setTo), t, "SetVariable()")
variable, err = evalVariable(p, tc.name)
assertNoError(err, t, "EvalVariable()")
assertVariable(t, variable, tc.afterSet())
assertNoError(setVariable(p, tc.name, tc.value), t, "SetVariable()")
variable, err := evalVariable(p, tc.name)
assertNoError(err, t, "EvalVariable()")
assertVariable(t, variable, tc)
}
}
})
}