codon/codon/parser/cache.cpp at develop · strider4560/codon · GitHub

History

308 lines (274 loc) · 9.54 KB

Raw

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

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

280

281

282

283

284

285

286

287

288

289

290

291

292

293

294

295

296

297

298

299

300

301

302

303

304

305

306

307

308

#include "cache.h"

#include <chrono>

#include <ranges>

#include <string>

#include <vector>

#include "codon/cir/pyextension.h"

#include "codon/cir/util/irtools.h"

#include "codon/parser/common.h"

#include "codon/parser/peg/peg.h"

#include "codon/parser/visitors/translate/translate.h"

#include "codon/parser/visitors/typecheck/ctx.h"

#include "codon/parser/visitors/typecheck/typecheck.h"

namespace codon::ast {

const std::string VAR_ARGV = getMangledVar("", "__argv__");

const std::string FN_OPTIONAL_UNWRAP =

getMangledFunc("std.internal.types.optional", "unwrap");

Cache::Cache(std::string argv0, const std::shared_ptr<IFilesystem> &fs) : fs(fs) {

if (!this->fs) {

this->fs = std::make_shared<Filesystem>(argv0);

}

this->_nodes = new std::vector<std::unique_ptr<ast::ASTNode>>();

typeCtx = std::make_shared<TypeContext>(this, ".root");

}

std::string Cache::getTemporaryVar(const std::string &prefix, char sigil) {

auto n = fmt::format("{}{}_{}", sigil ? fmt::format("{}_", sigil) : "", prefix,

++varCount);

return n;

}

std::string Cache::rev(const std::string &s) {

auto i = reverseIdentifierLookup.find(s);

if (i != reverseIdentifierLookup.end())

return i->second;

seqassertn(false, "'{}' has no non-canonical name", s);

return "";

}

SrcInfo Cache::generateSrcInfo() {

return {FILE_GENERATED, generatedSrcInfoCount, generatedSrcInfoCount++, 0};

}

std::string Cache::getContent(const SrcInfo &info) {

auto i = imports.find(info.file);

if (i == imports.end())

return "";

int line = info.line - 1;

if (line < 0 || line >= i->second.content.size())

return "";

auto s = i->second.content[line];

int col = info.col - 1;

if (col < 0 || col >= s.size())

return "";

int len = info.len;

return s.substr(col, len);

}

Cache::Class *Cache::getClass(const types::ClassType *type) {

auto name = type->name;

return in(classes, name);

}

std::string Cache::getMethod(types::ClassType *typ, const std::string &member) {

if (auto cls = getClass(typ)) {

if (auto t = in(cls->methods, member))

return *t;

}

seqassertn(false, "cannot find '{}' in '{}'", member, typ->name);

return "";

}

types::ClassType *Cache::findClass(const std::string &name) const {

auto f = typeCtx->find(name);

if (f && f->isType())

return f->getType()->getClass()->generics[0].getType()->getClass();

return nullptr;

}

types::FuncType *Cache::findFunction(const std::string &name) const {

auto f = typeCtx->find(name);

if (f && f->type && f->isFunc())

return f->type->getFunc();

f = typeCtx->find(name + ":0");

if (f && f->type && f->isFunc())

return f->type->getFunc();

return nullptr;

}

types::FuncType *Cache::findMethod(types::ClassType *typ, const std::string &member,

const std::vector<types::Type *> &args) const {

auto f = TypecheckVisitor(typeCtx).findBestMethod(typ, member, args);

return f;

}

ir::types::Type *Cache::realizeType(types::ClassType *type,

const std::vector<types::TypePtr> &generics) {

auto tv = TypecheckVisitor(typeCtx);

if (auto rtv = tv.realize(tv.instantiateType(type, castVectorPtr(generics)))) {

return classes[rtv->getClass()->name]

.realizations[rtv->getClass()->realizedName()]

->ir;

}

return nullptr;

}

ir::Func *Cache::realizeFunction(types::FuncType *type,

const std::vector<types::TypePtr> &args,

const std::vector<types::TypePtr> &generics,

types::ClassType *parentClass) {

auto tv = TypecheckVisitor(typeCtx);

auto t = tv.instantiateType(type, parentClass);

if (args.size() != t->size() + 1)

return nullptr;

types::Type::Unification undo;

if (t->getRetType()->unify(args[0].get(), &undo) < 0) {

undo.undo();

return nullptr;

}

for (int gi = 1; gi < args.size(); gi++) {

undo = types::Type::Unification();

if ((*t)[gi - 1]->unify(args[gi].get(), &undo) < 0) {

undo.undo();

return nullptr;

}

if (!generics.empty()) {

if (generics.size() != t->funcGenerics.size())

return nullptr;

for (int gi = 0; gi < generics.size(); gi++) {

undo = types::Type::Unification();

if (t->funcGenerics[gi].type->unify(generics[gi].get(), &undo) < 0) {

undo.undo();

return nullptr;

}

ir::Func *f = nullptr;

if (auto rtv = tv.realize(t.get())) {

auto pr = pendingRealizations; // copy it as it might be modified

for (const auto &key : pr | std::views::keys)

TranslateVisitor(codegenCtx).translateStmts(clone(functions[key].ast));

f = functions[rtv->getFunc()->ast->getName()].realizations[rtv->realizedName()]->ir;

}

return f;

}

ir::types::Type *Cache::makeTuple(const std::vector<types::TypePtr> &types) {

auto tv = TypecheckVisitor(typeCtx);

auto t = tv.instantiateType(tv.generateTuple(types.size()), castVectorPtr(types));

return realizeType(t->getClass(), types);

}

ir::types::Type *Cache::makeFunction(const std::vector<types::TypePtr> &types) {

auto tv = TypecheckVisitor(typeCtx);

seqassertn(!types.empty(), "types must have at least one argument");

std::vector<types::Type *> tt;

for (size_t i = 1; i < types.size(); i++)

tt.emplace_back(types[i].get());

const auto &ret = types[0];

auto argType = tv.instantiateType(tv.generateTuple(types.size() - 1), tt);

auto ft = realizeType(tv.getStdLibType("Function")->getClass(), {argType, ret});

return ft;

}

ir::types::Type *Cache::makeUnion(const std::vector<types::TypePtr> &types) {

auto tv = TypecheckVisitor(typeCtx);

auto argType =

tv.instantiateType(tv.generateTuple(types.size()), castVectorPtr(types));

return realizeType(tv.getStdLibType("Union")->getClass(), {argType});

}

size_t Cache::getRealizationId(types::ClassType *type) {

auto cv = TypecheckVisitor(typeCtx).getClassRealization(type);

return cv->id;

}

std::vector<size_t> Cache::getBaseRealizationIds(types::ClassType *type) {

auto r = TypecheckVisitor(typeCtx).getClassRealization(type);

std::vector<size_t> baseIds;

for (const auto &t : r->bases) {

baseIds.push_back(getRealizationId(t.get()));

}

return baseIds;

}

std::vector<size_t> Cache::getChildRealizationIds(types::ClassType *type) {

auto cv = TypecheckVisitor(typeCtx).getClassRealization(type);

auto parentId = cv->id;

std::vector<size_t> childIds;

for (const auto &[_, c] : classes) {

for (const auto &[_, r] : c.realizations) {

for (const auto &t : r->bases) {

if (getRealizationId(t.get()) == parentId) {

childIds.push_back(r->id);

break;

}

return childIds;

}

std::vector<ir::SeriesFlow *> Cache::parseCode(const std::string &code) {

auto nodeOrErr = ast::parseCode(this, "<internal>", code, /*startLine=*/0);

if (!nodeOrErr)

throw exc::ParserException(nodeOrErr.takeError());

auto sctx = imports[MAIN_IMPORT].ctx;

auto node = ast::TypecheckVisitor::apply(sctx, *nodeOrErr);

auto old = codegenCtx->series;

codegenCtx->series.clear();

ast::TranslateVisitor(codegenCtx).initializeGlobals();

ast::TranslateVisitor(codegenCtx).translateStmts(node);

std::swap(old, codegenCtx->series);

return old;

}

std::vector<std::shared_ptr<types::ClassType>>

Cache::mergeC3(std::vector<std::vector<types::TypePtr>> &seqs) {

// Reference: https://www.python.org/download/releases/2.3/mro/

std::vector<std::shared_ptr<types::ClassType>> result;

for (size_t i = 0;; i++) {

bool found = false;

std::shared_ptr<types::ClassType> cand = nullptr;

for (auto &seq : seqs) {

if (seq.empty())

continue;

found = true;

bool nothead = false;

for (auto &s : seqs)

if (!s.empty()) {

bool in = false;

for (size_t j = 1; j < s.size(); j++) {

if ((in |= (seq[0]->is(s[j]->getClass()->name))))

break;

}

if (in) {

nothead = true;

break;

}

if (!nothead) {

cand = std::dynamic_pointer_cast<types::ClassType>(seq[0]);

break;

}

if (!found)

return result;

if (!cand)

return {};

result.push_back(cand);

for (auto &s : seqs)

if (!s.empty() && cand->is(s[0]->getClass()->name)) {

s.erase(s.begin());

}

return result;

}

/**

* Generate Python bindings for Cython-like access.

void Cache::populatePythonModule() {

using namespace ast;

const std::string CYTHON_ITER = "_PyWrap.IterWrap";

if (!pythonExt)

return;

if (!pyModule)

pyModule = std::make_shared<ir::PyModule>();

LOG_USER("[py] ====== module generation =======");

auto tv = TypecheckVisitor(typeCtx);

auto clss = classes; // needs copy as below fns can mutate this

for (const auto &cn : clss | std::views::keys) {

auto py = tv.cythonizeClass(cn);

if (!py.name.empty())

pyModule->types.push_back(py);

}

// Handle __iternext__ wrappers

for (const auto &cn : classes[CYTHON_ITER].realizations | std::views::keys) {

auto py = tv.cythonizeIterator(cn);

pyModule->types.push_back(py);

}

auto fns = functions; // needs copy as below fns can mutate this

for (const auto &fn : fns | std::views::keys) {

auto py = tv.cythonizeFunction(fn);

if (!py.name.empty())

pyModule->functions.push_back(py);

}

// Handle pending realizations!

auto pr = pendingRealizations; // copy it as it might be modified

for (const auto &key : pr | std::views::keys)

TranslateVisitor(codegenCtx).translateStmts(clone(functions[key].ast));

}

} // namespace codon::ast

codon/codon/parser/cache.cpp at develop · strider4560/codon · GitHub

Expand file tree

Breadcrumbs

cache.cpp

Latest commit

History

Breadcrumbs

cache.cpp

File metadata and controls