/home/andy/git/oilshell/oil/cpp/leaky_frontend_flag_spec.cc
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1 | | // frontend_flag_spec.cc |
2 | | |
3 | | #include "cpp/leaky_frontend_flag_spec.h" |
4 | | |
5 | | #include "_gen/frontend/arg_types.h" |
6 | | #include "mycpp/builtins.h" |
7 | | // for definition of args::Reader, etc. |
8 | | #include "prebuilt/frontend/args.mycpp.h" |
9 | | |
10 | | namespace flag_spec { |
11 | | |
12 | | using arg_types::kFlagSpecs; |
13 | | using arg_types::kFlagSpecsAndMore; |
14 | | using runtime_asdl::flag_type_e; |
15 | | using runtime_asdl::value__Bool; |
16 | | using runtime_asdl::value__Undef; |
17 | | using runtime_asdl::value_t; |
18 | | |
19 | 3 | void _CreateStrList(const char** in, List<Str*>* out) { |
20 | 3 | int i = 0; |
21 | 16 | while (true) { |
22 | 16 | const char* s = in[i]; |
23 | 16 | if (!s) { |
24 | 3 | break; |
25 | 3 | } |
26 | | // log("a0 %s", s); |
27 | 13 | out->append(StrFromC(s)); |
28 | 13 | ++i; |
29 | 13 | } |
30 | 3 | } |
31 | | |
32 | | void _CreateDefaults(DefaultPair_c* in, |
33 | 2 | Dict<Str*, runtime_asdl::value_t*>* out) { |
34 | 2 | int i = 0; |
35 | 15 | while (true) { |
36 | 15 | DefaultPair_c* pair = &(in[i]); |
37 | 15 | if (!pair->name) { |
38 | 2 | break; |
39 | 2 | } |
40 | 13 | value_t* val; |
41 | 13 | switch (pair->typ) { |
42 | 10 | case flag_type_e::Bool: |
43 | 10 | val = Alloc<value__Bool>(pair->val.b); |
44 | 10 | break; |
45 | 0 | case flag_type_e::Int: |
46 | 0 | val = Alloc<value__Int>(pair->val.i); |
47 | 0 | break; |
48 | 0 | case flag_type_e::Float: |
49 | 0 | val = Alloc<value__Float>(pair->val.f); |
50 | 0 | break; |
51 | 3 | case flag_type_e::Str: { |
52 | 3 | const char* s = pair->val.s; |
53 | 3 | if (s == nullptr) { |
54 | 3 | val = Alloc<value__Undef>(); |
55 | 3 | } else { |
56 | 0 | val = Alloc<value__Str>(StrFromC(s)); |
57 | 0 | } |
58 | 3 | } break; |
59 | 0 | default: |
60 | 0 | assert(0); // NOTE(Jesse): Pretty sure this is InvalidCodePath() |
61 | 13 | } |
62 | 13 | out->set(StrFromC(pair->name), val); |
63 | 13 | ++i; |
64 | 13 | } |
65 | 2 | } |
66 | | |
67 | | #ifndef CPP_UNIT_TEST |
68 | | void _CreateActions(Action_c* in, Dict<Str*, args::_Action*>* out) { |
69 | | int i = 0; |
70 | | while (true) { |
71 | | Action_c* p = &(in[i]); |
72 | | if (!p->key) { |
73 | | break; |
74 | | } |
75 | | // log("a1 %s", p->name); |
76 | | args::_Action* action = nullptr; |
77 | | switch (p->type) { |
78 | | case ActionType_c::SetToString: { |
79 | | List<Str*>* valid = nullptr; |
80 | | if (p->strs) { |
81 | | valid = NewList<Str*>(); |
82 | | _CreateStrList(p->strs, valid); |
83 | | } |
84 | | auto a = Alloc<args::SetToString>(StrFromC(p->name), false, valid); |
85 | | action = a; |
86 | | } break; |
87 | | case ActionType_c::SetToString_q: |
88 | | action = Alloc<args::SetToString>(StrFromC(p->name), true, nullptr); |
89 | | break; |
90 | | case ActionType_c::SetToInt: |
91 | | action = Alloc<args::SetToInt>(StrFromC(p->name)); |
92 | | break; |
93 | | case ActionType_c::SetToFloat: |
94 | | action = Alloc<args::SetToFloat>(StrFromC(p->name)); |
95 | | break; |
96 | | case ActionType_c::SetToTrue: |
97 | | action = Alloc<args::SetToTrue>(StrFromC(p->name)); |
98 | | break; |
99 | | case ActionType_c::SetAttachedBool: |
100 | | action = Alloc<args::SetAttachedBool>(StrFromC(p->name)); |
101 | | break; |
102 | | case ActionType_c::SetOption: |
103 | | action = Alloc<args::SetOption>(StrFromC(p->name)); |
104 | | break; |
105 | | case ActionType_c::SetNamedOption: { |
106 | | auto a = Alloc<args::SetNamedOption>(false); |
107 | | if (p->strs) { |
108 | | _CreateStrList(p->strs, a->names); |
109 | | } |
110 | | action = a; |
111 | | } break; |
112 | | case ActionType_c::SetNamedOption_shopt: { |
113 | | auto a = Alloc<args::SetNamedOption>(true); |
114 | | if (p->strs) { |
115 | | _CreateStrList(p->strs, a->names); |
116 | | } |
117 | | action = a; |
118 | | } break; |
119 | | case ActionType_c::SetAction: |
120 | | action = Alloc<args::SetAction>(StrFromC(p->name)); |
121 | | break; |
122 | | case ActionType_c::SetNamedAction: { |
123 | | auto a = Alloc<args::SetNamedAction>(); |
124 | | if (p->strs) { |
125 | | _CreateStrList(p->strs, a->names); |
126 | | } |
127 | | action = a; |
128 | | } break; |
129 | | } |
130 | | |
131 | | if (action) { |
132 | | out->set(StrFromC(p->key), action); |
133 | | } |
134 | | ++i; |
135 | | } |
136 | | } |
137 | | #endif |
138 | | |
139 | | // "Inflate" the static C data into a heap-allocated ASDL data structure. |
140 | | // |
141 | | // TODO: Make a GLOBAL CACHE? It could be shared between subinterpreters even? |
142 | 2 | flag_spec::_FlagSpec* CreateSpec(FlagSpec_c* in) { |
143 | 2 | auto out = Alloc<flag_spec::_FlagSpec>(); |
144 | 2 | out->arity0 = NewList<Str*>(); |
145 | 2 | out->arity1 = NewDict<Str*, args::_Action*>(); |
146 | 2 | out->actions_long = NewDict<Str*, args::_Action*>(); |
147 | 2 | out->plus_flags = NewList<Str*>(); |
148 | 2 | out->defaults = NewDict<Str*, runtime_asdl::value_t*>(); |
149 | | |
150 | 2 | if (in->arity0) { |
151 | 2 | _CreateStrList(in->arity0, out->arity0); |
152 | 2 | } |
153 | | #ifndef CPP_UNIT_TEST |
154 | | if (in->arity1) { |
155 | | _CreateActions(in->arity1, out->arity1); |
156 | | } |
157 | | if (in->actions_long) { |
158 | | _CreateActions(in->actions_long, out->actions_long); |
159 | | } |
160 | | #endif |
161 | 2 | if (in->plus_flags) { |
162 | 1 | _CreateStrList(in->plus_flags, out->plus_flags); |
163 | 1 | } |
164 | 2 | if (in->defaults) { |
165 | 2 | _CreateDefaults(in->defaults, out->defaults); |
166 | 2 | } |
167 | 2 | return out; |
168 | 2 | } |
169 | | |
170 | 0 | flag_spec::_FlagSpecAndMore* CreateSpec2(FlagSpecAndMore_c* in) { |
171 | 0 | auto out = Alloc<flag_spec::_FlagSpecAndMore>(); |
172 | 0 | out->actions_short = NewDict<Str*, args::_Action*>(); |
173 | 0 | out->actions_long = NewDict<Str*, args::_Action*>(); |
174 | 0 | out->plus_flags = NewList<Str*>(); |
175 | 0 | out->defaults = NewDict<Str*, runtime_asdl::value_t*>(); |
176 | |
|
177 | | #ifndef CPP_UNIT_TEST |
178 | | if (in->actions_short) { |
179 | | _CreateActions(in->actions_short, out->actions_short); |
180 | | } |
181 | | |
182 | | if (in->actions_long) { |
183 | | _CreateActions(in->actions_long, out->actions_long); |
184 | | } |
185 | | #endif |
186 | 0 | if (in->plus_flags) { |
187 | 0 | _CreateStrList(in->plus_flags, out->plus_flags); |
188 | 0 | } |
189 | 0 | if (in->defaults) { |
190 | 0 | _CreateDefaults(in->defaults, out->defaults); |
191 | 0 | } |
192 | 0 | return out; |
193 | 0 | } |
194 | | |
195 | 3 | flag_spec::_FlagSpec* LookupFlagSpec(Str* spec_name) { |
196 | 3 | int i = 0; |
197 | 89 | while (true) { |
198 | 89 | const char* name = kFlagSpecs[i].name; |
199 | 89 | if (name == nullptr) { |
200 | 1 | break; |
201 | 1 | } |
202 | 88 | if (str_equals0(name, spec_name)) { |
203 | | // log("%s found", spec_name->data_); |
204 | 2 | return CreateSpec(&kFlagSpecs[i]); |
205 | 2 | } |
206 | | |
207 | 86 | i++; |
208 | 86 | } |
209 | | // log("%s not found", spec_name->data_); |
210 | 1 | return nullptr; |
211 | 3 | } |
212 | | |
213 | 0 | flag_spec::_FlagSpecAndMore* LookupFlagSpec2(Str* spec_name) { |
214 | 0 | int i = 0; |
215 | 0 | while (true) { |
216 | 0 | const char* name = kFlagSpecsAndMore[i].name; |
217 | 0 | if (name == nullptr) { |
218 | 0 | break; |
219 | 0 | } |
220 | 0 | if (str_equals0(name, spec_name)) { |
221 | | // log("%s found", spec_name->data_); |
222 | 0 | return CreateSpec2(&kFlagSpecsAndMore[i]); |
223 | 0 | } |
224 | | |
225 | 0 | i++; |
226 | 0 | } |
227 | | // log("%s not found", spec_name->data_); |
228 | 0 | return nullptr; |
229 | 0 | } |
230 | | |
231 | 0 | args::_Attributes* Parse(Str* spec_name, args::Reader* arg_r) { |
232 | 0 | flag_spec::_FlagSpec* spec = LookupFlagSpec(spec_name); |
233 | 0 | assert(spec); // should always be found |
234 | | |
235 | 0 | #ifdef CPP_UNIT_TEST |
236 | | // hack because we don't want to depend on a translation of args.py |
237 | 0 | return nullptr; |
238 | | #else |
239 | | return args::Parse(spec, arg_r); |
240 | | #endif |
241 | 0 | } |
242 | | |
243 | | Tuple2<args::_Attributes*, args::Reader*> ParseCmdVal( |
244 | 0 | Str* spec_name, runtime_asdl::cmd_value__Argv* cmd_val) { |
245 | 0 | #ifdef CPP_UNIT_TEST |
246 | 0 | return Tuple2<args::_Attributes*, args::Reader*>(nullptr, nullptr); |
247 | | #else |
248 | | auto arg_r = Alloc<args::Reader>(cmd_val->argv, cmd_val->arg_spids); |
249 | | arg_r->Next(); // move past the builtin name |
250 | | |
251 | | flag_spec::_FlagSpec* spec = LookupFlagSpec(spec_name); |
252 | | assert(spec); // should always be found |
253 | | return Tuple2<args::_Attributes*, args::Reader*>(args::Parse(spec, arg_r), |
254 | | arg_r); |
255 | | #endif |
256 | 0 | } |
257 | | |
258 | | // With optional arg |
259 | | Tuple2<args::_Attributes*, args::Reader*> ParseCmdVal( |
260 | | Str* spec_name, runtime_asdl::cmd_value__Argv* cmd_val, |
261 | 0 | bool accept_typed_args) { |
262 | | // TODO: disallow typed args! |
263 | 0 | return ParseCmdVal(spec_name, cmd_val); |
264 | 0 | } |
265 | | |
266 | | Tuple2<args::_Attributes*, args::Reader*> ParseLikeEcho( |
267 | 0 | Str* spec_name, runtime_asdl::cmd_value__Argv* cmd_val) { |
268 | 0 | #ifdef CPP_UNIT_TEST |
269 | 0 | return Tuple2<args::_Attributes*, args::Reader*>(nullptr, nullptr); |
270 | | #else |
271 | | auto arg_r = Alloc<args::Reader>(cmd_val->argv, cmd_val->arg_spids); |
272 | | arg_r->Next(); // move past the builtin name |
273 | | |
274 | | flag_spec::_FlagSpec* spec = LookupFlagSpec(spec_name); |
275 | | assert(spec); // should always be found |
276 | | return Tuple2<args::_Attributes*, args::Reader*>( |
277 | | args::ParseLikeEcho(spec, arg_r), arg_r); |
278 | | #endif |
279 | 0 | } |
280 | | |
281 | 0 | args::_Attributes* ParseMore(Str* spec_name, args::Reader* arg_r) { |
282 | 0 | #ifdef CPP_UNIT_TEST |
283 | 0 | return nullptr; |
284 | | #else |
285 | | // TODO: Fill this in from constant data! |
286 | | flag_spec::_FlagSpecAndMore* spec = LookupFlagSpec2(spec_name); |
287 | | assert(spec); |
288 | | return args::ParseMore(spec, arg_r); |
289 | | #endif |
290 | 0 | } |
291 | | |
292 | | } // namespace flag_spec |