This repository was archived by the owner on Jan 8, 2023. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 14
Expand file tree
/
Copy pathASTBuilder.cpp
More file actions
443 lines (395 loc) · 18.6 KB
/
ASTBuilder.cpp
File metadata and controls
443 lines (395 loc) · 18.6 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
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
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
#include "AST/ASTBuilder.h"
// TODO: bindChildrenInversely
ASTBuilder::ASTBuilder(String filename) : filename(std::move(filename)) {}
antlrcpp::Any ASTBuilder::visitModule(StaticScriptParser::ModuleContext *ctx) {
SharedPtrVector<StmtNode> childStmts;
if (ctx->statements()) {
antlrcpp::Any stmtsAny = visitStatements(ctx->statements());
childStmts = stmtsAny.as<SharedPtrVector<StmtNode>>();
}
SharedPtr<ModuleNode> module = makeShared<ModuleNode>(filename, childStmts);
module->bindChildrenInversely();
return module;
}
antlrcpp::Any ASTBuilder::visitStatements(StaticScriptParser::StatementsContext *ctx) {
SharedPtrVector<StmtNode> stmts;
for (auto &stmtCtx: ctx->statement()) {
const SharedPtr<StmtNode> &stmt = visitStatement(stmtCtx);
stmts.push_back(stmt);
}
return stmts;
}
antlrcpp::Any ASTBuilder::visitStatement(StaticScriptParser::StatementContext *ctx) {
antlrcpp::Any stmtAny;
SharedPtr<StmtNode> stmt;
if (ctx->declarationStatement()) {
stmtAny = visitDeclarationStatement(ctx->declarationStatement());
if (stmtAny.is<SharedPtr<VarDeclStmtNode>>()) {
stmt = stmtAny.as<SharedPtr<VarDeclStmtNode>>();
} else if (stmtAny.is<SharedPtr<FunctionDeclStmtNode>>()) {
stmt = stmtAny.as<SharedPtr<FunctionDeclStmtNode>>();
}
} else if (ctx->compoundStatement()) {
stmtAny = visitCompoundStatement(ctx->compoundStatement());
stmt = stmtAny.as<SharedPtr<CompoundStmtNode>>();
} else if (ctx->expressionStatement()) {
stmtAny = visitExpressionStatement(ctx->expressionStatement());
stmt = stmtAny.as<SharedPtr<ExprStmtNode>>();
} else if (ctx->selectionStatement()) {
stmtAny = visitSelectionStatement(ctx->selectionStatement());
stmt = stmtAny.as<SharedPtr<IfStmtNode>>();
} else if (ctx->iterationStatement()) {
stmtAny = visitIterationStatement(ctx->iterationStatement());
if (stmtAny.is<SharedPtr<WhileStmtNode>>()) {
stmt = stmtAny.as<SharedPtr<WhileStmtNode>>();
} else if (stmtAny.is<SharedPtr<ForStmtNode>>()) {
stmt = stmtAny.as<SharedPtr<ForStmtNode>>();
}
} else if (ctx->jumpStatement()) {
stmtAny = visitJumpStatement(ctx->jumpStatement());
if (stmtAny.is<SharedPtr<ContinueStmtNode>>()) {
stmt = stmtAny.as<SharedPtr<ContinueStmtNode>>();
} else if (stmtAny.is<SharedPtr<BreakStmtNode>>()) {
stmt = stmtAny.as<SharedPtr<BreakStmtNode>>();
} else if (stmtAny.is<SharedPtr<ReturnStmtNode>>()) {
stmt = stmtAny.as<SharedPtr<ReturnStmtNode>>();
}
}
return stmt;
}
antlrcpp::Any ASTBuilder::visitEmptyStatement(StaticScriptParser::EmptyStatementContext *ctx) {
return nullptr;
}
antlrcpp::Any ASTBuilder::visitDeclarationStatement(StaticScriptParser::DeclarationStatementContext *ctx) {
return visitDeclaration(ctx->declaration());
}
antlrcpp::Any ASTBuilder::visitDeclaration(StaticScriptParser::DeclarationContext *ctx) {
if (ctx->variableDeclaration()) {
return visitVariableDeclaration(ctx->variableDeclaration());
}
return visitFunctionDeclaration(ctx->functionDeclaration());
}
antlrcpp::Any ASTBuilder::visitVariableDeclaration(StaticScriptParser::VariableDeclarationContext *ctx) {
return visitVariableDeclarators(ctx->variableDeclarators());
}
antlrcpp::Any ASTBuilder::visitVariableDeclarators(StaticScriptParser::VariableDeclaratorsContext *ctx) {
VarModifier modifier = visitVariableModifier(ctx->variableModifier());
SharedPtr<VarDeclStmtNode> varDeclStmt = makeShared<VarDeclStmtNode>();
for (auto &declCtx : ctx->variableDeclarator()) {
SharedPtr<VarDeclNode> varDecl = visitVariableDeclarator(declCtx);
varDecl->modifier = modifier;
varDeclStmt->pushVarDecl(varDecl);
}
varDeclStmt->bindChildrenInversely();
return varDeclStmt;
}
antlrcpp::Any ASTBuilder::visitVariableModifier(StaticScriptParser::VariableModifierContext *ctx) {
if (ctx->Const()) {
return VarModifier::Const;
}
return VarModifier::Let;
}
antlrcpp::Any ASTBuilder::visitVariableDeclarator(StaticScriptParser::VariableDeclaratorContext *ctx) {
SharedPtr<VarDeclNode> varDecl = makeShared<VarDeclNode>();
varDecl->name = ctx->Identifier()->getText();
if (ctx->typeAnnotation()) {
varDecl->type = visitTypeAnnotation(ctx->typeAnnotation());
}
if (ctx->variableInitializer()) {
varDecl->initVal = visitVariableInitializer(ctx->variableInitializer());
}
varDecl->bindChildrenInversely();
return varDecl;
}
antlrcpp::Any ASTBuilder::visitVariableInitializer(StaticScriptParser::VariableInitializerContext *ctx) {
return visitExpression(ctx->expression());
}
antlrcpp::Any ASTBuilder::visitTypeAnnotation(StaticScriptParser::TypeAnnotationContext *ctx) {
return visitType(ctx->type());
}
antlrcpp::Any ASTBuilder::visitType(StaticScriptParser::TypeContext *ctx) {
SharedPtr<Type> type;
if (ctx->arrayType()) {
type = visitArrayType(ctx->arrayType()).as<SharedPtr<ArrayType>>();
} else {
type = visitBasicType(ctx->basicType()).as<SharedPtr<BasicType>>();
}
return type;
}
antlrcpp::Any ASTBuilder::visitArrayType(StaticScriptParser::ArrayTypeContext *ctx) {
const SharedPtr<BasicType> &basicType = visitBasicType(ctx->basicType());
size_t depth = ctx->OpenBracket().size();
return ArrayType::createNDArrayType(basicType, depth);
}
antlrcpp::Any ASTBuilder::visitBasicType(StaticScriptParser::BasicTypeContext *ctx) {
if (ctx->Boolean()) {
return BasicType::BOOLEAN_TYPE;
} else if (ctx->Integer()) {
return BasicType::INTEGER_TYPE;
} else if (ctx->Number()) {
return BasicType::FLOAT_TYPE;
}
return BasicType::STRING_TYPE;
}
antlrcpp::Any ASTBuilder::visitFunctionDeclaration(StaticScriptParser::FunctionDeclarationContext *ctx) {
String name = ctx->Identifier()->getText();
SharedPtrVector<ParmVarDeclNode> params;
SharedPtr<Type> returnType;
if (ctx->parameterList()) {
params = visitParameterList(ctx->parameterList()).as<SharedPtrVector<ParmVarDeclNode>>();
}
if (ctx->typeAnnotation()) {
returnType = visitTypeAnnotation(ctx->typeAnnotation());
}
SharedPtr<CompoundStmtNode> body = visitFunctionBody(ctx->functionBody());
SharedPtr<FunctionDeclNode> functionDecl = makeShared<FunctionDeclNode>(name, params, returnType, body);
SharedPtr<FunctionDeclStmtNode> functionDeclStmt = makeShared<FunctionDeclStmtNode>(functionDecl);
functionDecl->bindChildrenInversely();
functionDeclStmt->bindChildrenInversely();
return functionDeclStmt;
}
antlrcpp::Any ASTBuilder::visitParameterList(StaticScriptParser::ParameterListContext *ctx) {
SharedPtrVector<ParmVarDeclNode> params;
for (size_t i = 0; i < ctx->Identifier().size(); ++i) {
String name = ctx->Identifier(i)->getText();
SharedPtr<Type> type = visitTypeAnnotation(ctx->typeAnnotation(i));
SharedPtr<ParmVarDeclNode> param = makeShared<ParmVarDeclNode>(name, type);
param->bindChildrenInversely();
params.push_back(param);
}
return params;
}
antlrcpp::Any ASTBuilder::visitFunctionBody(StaticScriptParser::FunctionBodyContext *ctx) {
return visitCompoundStatement(ctx->compoundStatement());
}
antlrcpp::Any ASTBuilder::visitCompoundStatement(StaticScriptParser::CompoundStatementContext *ctx) {
SharedPtrVector<StmtNode> childStmts;
if (ctx->statements()) {
antlrcpp::Any stmtsAny = visitStatements(ctx->statements());
childStmts = stmtsAny.as<SharedPtrVector<StmtNode>>();
}
SharedPtr<CompoundStmtNode> compoundStmt = makeShared<CompoundStmtNode>(childStmts);
compoundStmt->bindChildrenInversely();
return compoundStmt;
}
antlrcpp::Any ASTBuilder::visitExpressionStatement(StaticScriptParser::ExpressionStatementContext *ctx) {
SharedPtr<ExprNode> expr = visitExpression(ctx->expression());
SharedPtr<ExprStmtNode> exprStmt = makeShared<ExprStmtNode>(expr);
exprStmt->bindChildrenInversely();
return exprStmt;
}
antlrcpp::Any ASTBuilder::visitExpression(StaticScriptParser::ExpressionContext *ctx) {
SharedPtr<ExprNode> expr;
antlrcpp::Any exprAny;
if (auto arraySubscriptExprCtx = dynamic_cast<StaticScriptParser::ArraySubscriptExprContext *>(ctx)) {
exprAny = visitArraySubscriptExpr(arraySubscriptExprCtx);
expr = exprAny.as<SharedPtr<ArraySubscriptExprNode>>();
} else if (auto callExprCtx = dynamic_cast<StaticScriptParser::CallExprContext *>(ctx)) {
exprAny = visitCallExpr(callExprCtx);
expr = exprAny.as<SharedPtr<CallExprNode>>();
} else if (auto postfixUnaryExprCtx = dynamic_cast<StaticScriptParser::PostfixUnaryExprContext *>(ctx)) {
exprAny = visitPostfixUnaryExpr(postfixUnaryExprCtx);
expr = exprAny.as<SharedPtr<UnaryOperatorExprNode>>();
} else if (auto prefixUnaryExprCtx = dynamic_cast<StaticScriptParser::PrefixUnaryExprContext *>(ctx)) {
exprAny = visitPrefixUnaryExpr(prefixUnaryExprCtx);
expr = exprAny.as<SharedPtr<UnaryOperatorExprNode>>();
} else if (auto binaryExprCtx = dynamic_cast<StaticScriptParser::BinaryExprContext *>(ctx)) {
exprAny = visitBinaryExpr(binaryExprCtx);
expr = exprAny.as<SharedPtr<BinaryOperatorExprNode>>();
} else if (auto idExprCtx = dynamic_cast<StaticScriptParser::IdentifierExprContext *>(ctx)) {
exprAny = visitIdentifierExpr(idExprCtx);
expr = exprAny.as<SharedPtr<IdentifierExprNode>>();
} else if (auto literalExprCtx = dynamic_cast<StaticScriptParser::LiteralExprContext *>(ctx)) {
exprAny = visitLiteralExpr(literalExprCtx);
expr = exprAny.as<SharedPtr<LiteralExprNode>>();
} else if (auto parenExprCtx = dynamic_cast<StaticScriptParser::ParenExprContext *>(ctx)) {
exprAny = visitParenExpr(parenExprCtx);
expr = exprAny.as<SharedPtr<ExprNode>>();
}
expr->bindChildrenInversely();
return expr;
}
antlrcpp::Any ASTBuilder::visitArraySubscriptExpr(StaticScriptParser::ArraySubscriptExprContext *ctx) {
SharedPtr<ExprNode> baseExpr = visitExpression(ctx->base);
SharedPtrVector<ExprNode> indexExprs(ctx->index.size());
for (size_t i = 0; i < ctx->index.size(); ++i) {
indexExprs[i] = visitExpression(ctx->index[i]).as<SharedPtr<ExprNode>>();
}
return makeShared<ArraySubscriptExprNode>(baseExpr, indexExprs);
}
antlrcpp::Any ASTBuilder::visitCallExpr(StaticScriptParser::CallExprContext *ctx) {
return visitCallExpression(ctx->callExpression());
}
antlrcpp::Any ASTBuilder::visitPostfixUnaryExpr(StaticScriptParser::PostfixUnaryExprContext *ctx) {
SharedPtr<ExprNode> subExpr = visitExpression(ctx->expression());
SharedPtr<UnaryOperatorExprNode> expr = makeShared<UnaryOperatorExprNode>(ctx->uop->getType(), subExpr);
expr->isPostfix = true;
return expr;
}
antlrcpp::Any ASTBuilder::visitPrefixUnaryExpr(StaticScriptParser::PrefixUnaryExprContext *ctx) {
SharedPtr<ExprNode> subExpr = visitExpression(ctx->expression());
return makeShared<UnaryOperatorExprNode>(ctx->uop->getType(), subExpr);
}
antlrcpp::Any ASTBuilder::visitBinaryExpr(StaticScriptParser::BinaryExprContext *ctx) {
SharedPtr<ExprNode> lhs = visitExpression(ctx->expression(0));
SharedPtr<ExprNode> rhs = visitExpression(ctx->expression(1));
return makeShared<BinaryOperatorExprNode>(ctx->bop->getType(), lhs, rhs);
}
antlrcpp::Any ASTBuilder::visitIdentifierExpr(StaticScriptParser::IdentifierExprContext *ctx) {
return makeShared<IdentifierExprNode>(ctx->Identifier()->getText());
}
antlrcpp::Any ASTBuilder::visitLiteralExpr(StaticScriptParser::LiteralExprContext *ctx) {
return visitLiteral(ctx->literal());
}
antlrcpp::Any ASTBuilder::visitParenExpr(StaticScriptParser::ParenExprContext *ctx) {
return visitExpression(ctx->expression());
}
antlrcpp::Any ASTBuilder::visitCallExpression(StaticScriptParser::CallExpressionContext *ctx) {
String calleeName = ctx->Identifier()->getText();
SharedPtrVector<ExprNode> args;
if (ctx->argumentList()) {
args = visitArgumentList(ctx->argumentList()).as<SharedPtrVector<ExprNode>>();
}
SharedPtr<CallExprNode> callExpr = makeShared<CallExprNode>(calleeName, args);
callExpr->bindChildrenInversely();
return callExpr;
}
antlrcpp::Any ASTBuilder::visitArgumentList(StaticScriptParser::ArgumentListContext *ctx) {
return visitExpressionList(ctx->expressionList());
}
antlrcpp::Any ASTBuilder::visitLiteral(StaticScriptParser::LiteralContext *ctx) {
SharedPtr<LiteralExprNode> literalExpr;
if (ctx->BooleanLiteral()) {
bool literal = ctx->BooleanLiteral()->getText() == "true";
literalExpr = makeShared<BooleanLiteralExprNode>(literal);
} else if (ctx->StringLiteral()) {
String literal = ctx->StringLiteral()->getText();
literal = literal.substr(1, literal.size() - 2);
literalExpr = makeShared<StringLiteralExprNode>(literal);
} else if (ctx->arrayLiteral()) {
literalExpr = visitArrayLiteral(ctx->arrayLiteral()).as<SharedPtr<ArrayLiteralExprNode>>();
} else if (ctx->FloatLiteral()) {
double literal = std::stod(ctx->FloatLiteral()->getText());
literalExpr = makeShared<FloatLiteralExprNode>(literal);
} else {
int base = 10;
String literalStr;
if (ctx->DecimalIntegerLiteral()) {
base = 10;
literalStr = ctx->DecimalIntegerLiteral()->getText();
} else if (ctx->HexIntegerLiteral()) {
base = 16;
literalStr = ctx->HexIntegerLiteral()->getText();
literalStr = literalStr.substr(2, literalStr.size() - 2);
} else if (ctx->OctalIntegerLiteral()) {
base = 8;
literalStr = ctx->OctalIntegerLiteral()->getText();
literalStr = literalStr.substr(2, literalStr.size() - 2);
} else if (ctx->BinaryIntegerLiteral()) {
base = 2;
literalStr = ctx->BinaryIntegerLiteral()->getText();
literalStr = literalStr.substr(2, literalStr.size() - 2);
}
long literal = std::stol(literalStr, nullptr, base);
literalExpr = makeShared<IntegerLiteralExprNode>(literal);
}
return literalExpr;
}
antlrcpp::Any ASTBuilder::visitArrayLiteral(StaticScriptParser::ArrayLiteralContext *ctx) {
SharedPtr<ArrayLiteralExprNode> arrayLiteralExpr = makeShared<ArrayLiteralExprNode>();
if (ctx->expressionList()) {
arrayLiteralExpr->elements = visitExpressionList(ctx->expressionList()).as<SharedPtrVector<ExprNode>>();
}
return arrayLiteralExpr;
}
antlrcpp::Any ASTBuilder::visitSelectionStatement(StaticScriptParser::SelectionStatementContext *ctx) {
return visitIfStatement(ctx->ifStatement());
}
antlrcpp::Any ASTBuilder::visitIfStatement(StaticScriptParser::IfStatementContext *ctx) {
SharedPtr<ExprNode> condition = visitExpression(ctx->ifCondition);
SharedPtr<StmtNode> thenBody = visitStatement(ctx->thenBody);
SharedPtr<StmtNode> elseBody;
if (ctx->Else()) {
elseBody = visitStatement(ctx->elseBody);
}
SharedPtr<IfStmtNode> ifStmt = makeShared<IfStmtNode>(condition, thenBody, elseBody);
ifStmt->bindChildrenInversely();
return ifStmt;
}
antlrcpp::Any ASTBuilder::visitIterationStatement(StaticScriptParser::IterationStatementContext *ctx) {
if (ctx->whileStatement()) {
return visitWhileStatement(ctx->whileStatement());
}
return visitForStatement(ctx->forStatement());
}
antlrcpp::Any ASTBuilder::visitWhileStatement(StaticScriptParser::WhileStatementContext *ctx) {
SharedPtr<ExprNode> condition = visitExpression(ctx->whileCondition);
SharedPtr<StmtNode> body = visitStatement(ctx->whileBody);
SharedPtr<WhileStmtNode> whileStmt = makeShared<WhileStmtNode>(condition, body);
whileStmt->bindChildrenInversely();
return whileStmt;
}
antlrcpp::Any ASTBuilder::visitForStatement(StaticScriptParser::ForStatementContext *ctx) {
SharedPtr<VarDeclStmtNode> forInitVarDecls;
SharedPtrVector<ExprNode> forInitExprList;
SharedPtr<ExprNode> forCondition;
SharedPtrVector<ExprNode> forUpdate;
if (ctx->forInit()) {
antlrcpp::Any forInitAny = visitForInit(ctx->forInit());
if (forInitAny.is<SharedPtr<VarDeclStmtNode>>()) {
forInitVarDecls = forInitAny.as<SharedPtr<VarDeclStmtNode>>();
} else if (forInitAny.is<SharedPtrVector<ExprNode>>()) {
forInitExprList = forInitAny.as<SharedPtrVector<ExprNode>>();
}
}
if (ctx->forCondition) {
forCondition = visitExpression(ctx->forCondition);
}
if (ctx->forUpdate) {
antlrcpp::Any forUpdateAny = visitExpressionList(ctx->forUpdate);
forUpdate = forUpdateAny.as<SharedPtrVector<ExprNode>>();
}
SharedPtr<StmtNode> body = visitStatement(ctx->forBody);
SharedPtr<ForStmtNode> forStmt = makeShared<ForStmtNode>(forInitVarDecls, forInitExprList, forCondition, forUpdate, body);
forStmt->bindChildrenInversely();
return forStmt;
}
antlrcpp::Any ASTBuilder::visitForInit(StaticScriptParser::ForInitContext *ctx) {
if (ctx->variableDeclarators()) {
return visitVariableDeclarators(ctx->variableDeclarators());
}
return visitExpressionList(ctx->expressionList());
}
antlrcpp::Any ASTBuilder::visitExpressionList(StaticScriptParser::ExpressionListContext *ctx) {
SharedPtrVector<ExprNode> exprList;
for (auto exprCtx : ctx->expression()) {
SharedPtr<ExprNode> expr = visitExpression(exprCtx);
exprList.push_back(expr);
}
return exprList;
}
antlrcpp::Any ASTBuilder::visitJumpStatement(StaticScriptParser::JumpStatementContext *ctx) {
if (ctx->continueStatement()) {
return visitContinueStatement(ctx->continueStatement());
} else if (ctx->breakStatement()) {
return visitBreakStatement(ctx->breakStatement());
}
return visitReturnStatement(ctx->returnStatement());
}
antlrcpp::Any ASTBuilder::visitContinueStatement(StaticScriptParser::ContinueStatementContext *ctx) {
SharedPtr<ContinueStmtNode> continueStmt = makeShared<ContinueStmtNode>();
return continueStmt;
}
antlrcpp::Any ASTBuilder::visitBreakStatement(StaticScriptParser::BreakStatementContext *ctx) {
SharedPtr<BreakStmtNode> breakStmt = makeShared<BreakStmtNode>();
return breakStmt;
}
antlrcpp::Any ASTBuilder::visitReturnStatement(StaticScriptParser::ReturnStatementContext *ctx) {
SharedPtr<ExprNode> returnExpr;
if (ctx->returnExpr) {
returnExpr = visitExpression(ctx->expression());
}
SharedPtr<ReturnStmtNode> returnStmt = makeShared<ReturnStmtNode>(returnExpr);
returnStmt->bindChildrenInversely();
return returnStmt;
}