mirror of
https://shylinux.com/x/icebergs
synced 2025-04-25 17:18:05 +08:00
281 lines
8.1 KiB
Go
281 lines
8.1 KiB
Go
package yac
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import (
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"strings"
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ice "shylinux.com/x/icebergs"
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"shylinux.com/x/icebergs/base/ctx"
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"shylinux.com/x/icebergs/base/mdb"
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"shylinux.com/x/icebergs/base/nfs"
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kit "shylinux.com/x/toolkits"
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)
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const (
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IF = "if"
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ELSE = "else"
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FOR = "for"
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RANGE = "range"
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BREAK = "break"
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CONTINUE = "continue"
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SWITCH = "switch"
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CASE = "case"
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DEFAULT = "default"
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FUNC = "func"
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DEFER = "defer"
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RETURN = "return"
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CALL = "call"
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INIT = "init"
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MAIN = "main"
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INFO = "info"
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)
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const (
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KEYWORD = "keyword"
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FUNCTION = "function"
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)
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func init() {
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Index.MergeCommands(ice.Commands{
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IF: {Name: "if a = 1; a > 1 {", Hand: func(m *ice.Message, arg ...string) {
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s, f := _parse_frame(m)
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res := s.expr(m)
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kit.If(s.token() == SPLIT, func() { res = s.expr(m) })
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kit.If(res == ice.FALSE, func() { s.status_disable(f) })
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}},
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ELSE: {Name: "else if a = 1; a > 1 {", Hand: func(m *ice.Message, arg ...string) {
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s, f := _parse_frame(m)
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if s.last.status == STATUS_DISABLE {
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s.status_normal(f)
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} else {
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f.status, f.defers = STATUS_DISABLE, append(f.defers, func() { s.status_normal(f) })
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}
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if s.next(m) == IF {
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res := s.expr(m)
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kit.If(s.token() == SPLIT, func() { res = s.expr(m) })
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kit.If(res == ice.FALSE, func() { s.status_disable(f) })
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}
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}},
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FOR: {Name: "for a = 1; a < 10; a++ {", Hand: func(m *ice.Message, arg ...string) {
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s, f := _parse_frame(m)
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if strings.Contains(s.list[s.line], RANGE) {
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pos, key, list := s.Position, []string{}, []Any{}
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kit.If(s.last != nil && s.last.line == s.line, func() { list, _ = s.last.value["_range"].([]Any) })
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for s.next(m) != BEGIN {
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switch s.token() {
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case RANGE:
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if obj, ok := s.cals(m).(Operater); ok {
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if list, ok := obj.Operate(RANGE, list).([]Any); ok {
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kit.For(key, func(i int, k string) { f.value[k] = list[i] })
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f.defers = append(f.defers, func() { kit.If(s.runable(), func() { s.pos(m, pos, -1) }) })
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f.value["_range"] = list
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return
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}
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}
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s.status_disable(f)
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return
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case ASSIGN:
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case DEFS:
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case FIELD:
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default:
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key = append(key, s.token())
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}
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}
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return
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}
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list, status := []Position{s.Position}, f.status
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for s.status_disable(f); s.token() != BEGIN; list = append(list, s.Position) {
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s.expr(m)
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}
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f.status = status
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res := ice.TRUE
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if len(list) == 1 {
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} else if len(list) == 2 {
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res = s.expr(m, list[0])
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} else {
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if s.last == nil || s.last.line != s.line {
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res = s.expr(m, list[0])
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} else {
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kit.For(s.last.value, func(k string, v Any) { f.value[k] = v })
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}
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res = s.expr(m, list[1])
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}
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kit.If(res == ice.FALSE, func() { s.status_disable(f) })
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s.Position, f.defers = list[len(list)-1], append(f.defers, func() {
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if s.runable() {
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kit.If(len(list) > 3, func() { s.expr(m, list[2]) })
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s.pos(m, list[0], -1)
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}
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})
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}},
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BREAK: {Name: "break", Hand: func(m *ice.Message, arg ...string) {
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s := _parse_stack(m)
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if !s.runable() {
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return
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}
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s.stack(func(f *Frame, i int) bool {
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switch s.status_disable(f); f.key {
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case FOR, SWITCH:
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return true
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default:
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return false
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}
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})
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}},
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CONTINUE: {Name: "continue", Hand: func(m *ice.Message, arg ...string) {
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s := _parse_stack(m)
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if !s.runable() {
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return
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}
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s.stack(func(f *Frame, i int) bool {
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switch s.status_disable(f); f.key {
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case FOR:
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f.defers = append(f.defers, func() { s.status_normal(f) })
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return true
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default:
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return false
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}
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})
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}},
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SWITCH: {Name: "switch a = 1; a {", Hand: func(m *ice.Message, arg ...string) {
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s, f := _parse_frame(m)
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res := s.cals(m)
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kit.If(s.token() == SPLIT, func() { res = s.cals(m) })
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f.value["_switch"], f.value["_case"] = res, ""
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}},
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CASE: {Name: "case b:", Hand: func(m *ice.Message, arg ...string) {
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s := _parse_stack(m)
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f := s.peekf()
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s.status_normal(f)
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v := s.cals(m)
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if s.status_disable(f); f.value["_case"] == "done" {
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return
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}
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if res, ok := v.(Operater); ok {
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if res, ok := res.Operate("==", Trans(s.value(m, "_switch"))).(Boolean); ok && res.value {
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f.value["_case"] = "done"
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s.status_normal(f)
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}
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}
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}},
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DEFAULT: {Name: "default:", Hand: func(m *ice.Message, arg ...string) {
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s := _parse_stack(m)
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f := s.peekf()
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if s.status_normal(f); f.value["_case"] == "done" {
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s.status_disable(f)
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}
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s.skip++
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}},
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FUNC: {Name: "func show(a, b) (c, d)", Hand: func(m *ice.Message, arg ...string) {
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s := _parse_stack(m)
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field, list := Field{}, []Field{}
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if s.next(m) == OPEN {
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for s.next(m) != CLOSE {
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kit.If(field.name == "", func() { field.name = s.token() }, func() { field.types = s.token() })
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}
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kit.If(field.types == nil, func() { field.types = field.name })
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list = append(list, field)
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s.next(m)
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}
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name := s.token()
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list = append(list, Field{name: name})
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s.rest[s.skip] = FUNC
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v := s.funcs(m, name)
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if v.obj = list; field.types != nil {
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if t, ok := s.value(m, kit.Format(field.types)).(Struct); ok {
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m.Debug("value %s set %s.%s %s", Format(s), field.types, name, Format(v))
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t.index[name] = v
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}
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} else if !kit.IsIn(name, INIT, MAIN) {
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s.value(m, name, v)
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}
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}},
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DEFER: {Name: "defer func() {} ()", Hand: func(m *ice.Message, arg ...string) {
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s := _parse_stack(m)
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obj, k := Any(nil), ""
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obj, k = s, s.next(m)
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kit.If(k == FUNC, func() { obj, k = s.funcs(m, ""), "" })
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s.skip++
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args := _parse_res(m, s.cals(m))
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if !s.runable() {
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return
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}
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s.stack(func(f *Frame, i int) bool {
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if f.key == CALL {
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f.defers = append(f.defers, func() { s.calls(m, obj, k, nil, args...) })
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return true
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}
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return false
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})
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}},
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RETURN: {Name: "return show", Hand: func(m *ice.Message, arg ...string) {
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s := _parse_stack(m)
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args := _parse_res(m, s.cals(m))
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s.stack(func(f *Frame, i int) bool {
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switch s.status_disable(f); f.key {
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case FUNC:
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case CALL:
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switch cb := f.value["_return"].(type) {
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case func(...Any):
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cb(args...)
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}
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case STACK:
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s.input = nil
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default:
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return false
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}
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return true
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})
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}},
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INFO: {Name: "info", Actions: ice.Actions{
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ERROR: {Hand: func(m *ice.Message, arg ...string) {
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for _, e := range _parse_stack(m).Error {
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m.EchoLine(" %s%s %s %s", e.key, e.detail, _parse_link(m, Format(e.Position)), _parse_link(m, e.fileline))
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}
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}},
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STACK: {Hand: func(m *ice.Message, arg ...string) {
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_parse_stack(m).stack(func(f *Frame, i int) bool {
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m.EchoLine("frame: %s %v:%v:%v", f.key, f.name, f.line, f.skip)
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show := func(p string) string { return _parse_link(m, p) }
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kit.For(f.value, func(k string, v Any) {
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switch v := v.(type) {
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case func(*ice.Message, string, ...Any) Any:
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m.EchoLine(" %s: %v", k, show(kit.FileLine(v, 100)))
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case Message:
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m.EchoLine(" %s: %v", k, show(kit.FileLine(v.Call, 100)))
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case Function:
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m.EchoLine(" %s: %v", k, show(v.Position.name+nfs.DF+kit.Format(v.Position.line+1)))
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case Struct:
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m.EchoLine(" %s: %s", k, show(v.Position.name+nfs.DF+kit.Format(v.Position.line+1)))
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break
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kit.For(v.index, func(k string, v Any) {
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switch v := v.(type) {
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case Function:
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m.EchoLine(" %s: %v", k, show(v.Position.name+nfs.DF+kit.Format(v.Position.line+1)))
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case Field:
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m.EchoLine(" %s: %v", k, v.Format())
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}
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})
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case string:
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m.EchoLine(" %s: %v", k, v)
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default:
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m.EchoLine(" %s: %v", k, Format(v))
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}
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})
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return false
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})
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}},
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ctx.CONFIG: {Hand: func(m *ice.Message, arg ...string) {
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m.Cmdy(ctx.CONFIG, m.Option("__index")).EchoLine("")
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}},
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ctx.COMMAND: {Hand: func(m *ice.Message, arg ...string) {
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msg := m.Cmd(ctx.COMMAND, m.Option("__index"))
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m.EchoLine(msg.Append(mdb.LIST))
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m.EchoLine(msg.Append(mdb.META))
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}},
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}, Hand: func(m *ice.Message, arg ...string) {
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kit.For([]string{ERROR, STACK, ctx.CONFIG, ctx.COMMAND}, func(k string) { m.EchoLine("%s: %s", k, arg[0]).Cmdy("", k) })
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}},
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})
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}
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