forked from sanbuphy/learn-coding-agent
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathtypes.ts
More file actions
199 lines (178 loc) · 6.18 KB
/
types.ts
File metadata and controls
199 lines (178 loc) · 6.18 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
/**
* Vim Mode State Machine Types
*
* This file defines the complete state machine for vim input handling.
* The types ARE the documentation - reading them tells you how the system works.
*
* State Diagram:
* ```
* VimState
* ┌──────────────────────────────┬──────────────────────────────────────┐
* │ INSERT │ NORMAL │
* │ (tracks insertedText) │ (CommandState machine) │
* │ │ │
* │ │ idle ──┬─[d/c/y]──► operator │
* │ │ ├─[1-9]────► count │
* │ │ ├─[fFtT]───► find │
* │ │ ├─[g]──────► g │
* │ │ ├─[r]──────► replace │
* │ │ └─[><]─────► indent │
* │ │ │
* │ │ operator ─┬─[motion]──► execute │
* │ │ ├─[0-9]────► operatorCount│
* │ │ ├─[ia]─────► operatorTextObj
* │ │ └─[fFtT]───► operatorFind │
* └──────────────────────────────┴──────────────────────────────────────┘
* ```
*/
// ============================================================================
// Core Types
// ============================================================================
export type Operator = 'delete' | 'change' | 'yank'
export type FindType = 'f' | 'F' | 't' | 'T'
export type TextObjScope = 'inner' | 'around'
// ============================================================================
// State Machine Types
// ============================================================================
/**
* Complete vim state. Mode determines what data is tracked.
*
* INSERT mode: Track text being typed (for dot-repeat)
* NORMAL mode: Track command being parsed (state machine)
*/
export type VimState =
| { mode: 'INSERT'; insertedText: string }
| { mode: 'NORMAL'; command: CommandState }
/**
* Command state machine for NORMAL mode.
*
* Each state knows exactly what input it's waiting for.
* TypeScript ensures exhaustive handling in switches.
*/
export type CommandState =
| { type: 'idle' }
| { type: 'count'; digits: string }
| { type: 'operator'; op: Operator; count: number }
| { type: 'operatorCount'; op: Operator; count: number; digits: string }
| { type: 'operatorFind'; op: Operator; count: number; find: FindType }
| {
type: 'operatorTextObj'
op: Operator
count: number
scope: TextObjScope
}
| { type: 'find'; find: FindType; count: number }
| { type: 'g'; count: number }
| { type: 'operatorG'; op: Operator; count: number }
| { type: 'replace'; count: number }
| { type: 'indent'; dir: '>' | '<'; count: number }
/**
* Persistent state that survives across commands.
* This is the "memory" of vim - what gets recalled for repeats and pastes.
*/
export type PersistentState = {
lastChange: RecordedChange | null
lastFind: { type: FindType; char: string } | null
register: string
registerIsLinewise: boolean
}
/**
* Recorded change for dot-repeat.
* Captures everything needed to replay a command.
*/
export type RecordedChange =
| { type: 'insert'; text: string }
| {
type: 'operator'
op: Operator
motion: string
count: number
}
| {
type: 'operatorTextObj'
op: Operator
objType: string
scope: TextObjScope
count: number
}
| {
type: 'operatorFind'
op: Operator
find: FindType
char: string
count: number
}
| { type: 'replace'; char: string; count: number }
| { type: 'x'; count: number }
| { type: 'toggleCase'; count: number }
| { type: 'indent'; dir: '>' | '<'; count: number }
| { type: 'openLine'; direction: 'above' | 'below' }
| { type: 'join'; count: number }
// ============================================================================
// Key Groups - Named constants, no magic strings
// ============================================================================
export const OPERATORS = {
d: 'delete',
c: 'change',
y: 'yank',
} as const satisfies Record<string, Operator>
export function isOperatorKey(key: string): key is keyof typeof OPERATORS {
return key in OPERATORS
}
export const SIMPLE_MOTIONS = new Set([
'h',
'l',
'j',
'k', // Basic movement
'w',
'b',
'e',
'W',
'B',
'E', // Word motions
'0',
'^',
'$', // Line positions
])
export const FIND_KEYS = new Set(['f', 'F', 't', 'T'])
export const TEXT_OBJ_SCOPES = {
i: 'inner',
a: 'around',
} as const satisfies Record<string, TextObjScope>
export function isTextObjScopeKey(
key: string,
): key is keyof typeof TEXT_OBJ_SCOPES {
return key in TEXT_OBJ_SCOPES
}
export const TEXT_OBJ_TYPES = new Set([
'w',
'W', // Word/WORD
'"',
"'",
'`', // Quotes
'(',
')',
'b', // Parens
'[',
']', // Brackets
'{',
'}',
'B', // Braces
'<',
'>', // Angle brackets
])
export const MAX_VIM_COUNT = 10000
// ============================================================================
// State Factories
// ============================================================================
export function createInitialVimState(): VimState {
return { mode: 'INSERT', insertedText: '' }
}
export function createInitialPersistentState(): PersistentState {
return {
lastChange: null,
lastFind: null,
register: '',
registerIsLinewise: false,
}
}