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1 /* | 1 /* |
2 * Copyright 2016 Google Inc. | 2 * Copyright 2016 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef SKSL_IRGENERATOR | 8 #ifndef SKSL_IRGENERATOR |
9 #define SKSL_IRGENERATOR | 9 #define SKSL_IRGENERATOR |
10 | 10 |
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46 #include "ir/SkSLVarDeclaration.h" | 46 #include "ir/SkSLVarDeclaration.h" |
47 | 47 |
48 namespace SkSL { | 48 namespace SkSL { |
49 | 49 |
50 /** | 50 /** |
51 * Performs semantic analysis on an abstract syntax tree (AST) and produces the
corresponding | 51 * Performs semantic analysis on an abstract syntax tree (AST) and produces the
corresponding |
52 * (unoptimized) intermediate representation (IR). | 52 * (unoptimized) intermediate representation (IR). |
53 */ | 53 */ |
54 class IRGenerator { | 54 class IRGenerator { |
55 public: | 55 public: |
56 IRGenerator(std::shared_ptr<SymbolTable> root, ErrorReporter& errorReporter)
; | 56 IRGenerator(const Context* context, std::shared_ptr<SymbolTable> root, |
| 57 ErrorReporter& errorReporter); |
57 | 58 |
58 std::unique_ptr<VarDeclaration> convertVarDeclaration(const ASTVarDeclaratio
n& decl, | 59 std::unique_ptr<VarDeclaration> convertVarDeclaration(const ASTVarDeclaratio
n& decl, |
59 Variable::Storage stor
age); | 60 Variable::Storage stor
age); |
60 std::unique_ptr<FunctionDefinition> convertFunction(const ASTFunction& f); | 61 std::unique_ptr<FunctionDefinition> convertFunction(const ASTFunction& f); |
61 std::unique_ptr<Statement> convertStatement(const ASTStatement& statement); | 62 std::unique_ptr<Statement> convertStatement(const ASTStatement& statement); |
62 std::unique_ptr<Expression> convertExpression(const ASTExpression& expressio
n); | 63 std::unique_ptr<Expression> convertExpression(const ASTExpression& expressio
n); |
63 | 64 |
64 private: | 65 private: |
65 void pushSymbolTable(); | 66 void pushSymbolTable(); |
66 void popSymbolTable(); | 67 void popSymbolTable(); |
67 | 68 |
68 std::shared_ptr<Type> convertType(const ASTType& type); | 69 const Type* convertType(const ASTType& type); |
69 std::unique_ptr<Expression> call(Position position, | 70 std::unique_ptr<Expression> call(Position position, |
70 std::shared_ptr<FunctionDeclaration> functi
on, | 71 const FunctionDeclaration& function, |
71 std::vector<std::unique_ptr<Expression>> ar
guments); | 72 std::vector<std::unique_ptr<Expression>> ar
guments); |
72 bool determineCallCost(std::shared_ptr<FunctionDeclaration> function, | 73 bool determineCallCost(const FunctionDeclaration& function, |
73 const std::vector<std::unique_ptr<Expression>>& argum
ents, | 74 const std::vector<std::unique_ptr<Expression>>& argum
ents, |
74 int* outCost); | 75 int* outCost); |
75 std::unique_ptr<Expression> call(Position position, std::unique_ptr<Expressi
on> function, | 76 std::unique_ptr<Expression> call(Position position, std::unique_ptr<Expressi
on> function, |
76 std::vector<std::unique_ptr<Expression>> ar
guments); | 77 std::vector<std::unique_ptr<Expression>> ar
guments); |
77 std::unique_ptr<Expression> coerce(std::unique_ptr<Expression> expr, | 78 std::unique_ptr<Expression> coerce(std::unique_ptr<Expression> expr, const T
ype& type); |
78 std::shared_ptr<Type> type); | |
79 std::unique_ptr<Block> convertBlock(const ASTBlock& block); | 79 std::unique_ptr<Block> convertBlock(const ASTBlock& block); |
80 std::unique_ptr<Statement> convertBreak(const ASTBreakStatement& b); | 80 std::unique_ptr<Statement> convertBreak(const ASTBreakStatement& b); |
81 std::unique_ptr<Expression> convertConstructor(Position position, | 81 std::unique_ptr<Expression> convertConstructor(Position position, |
82 std::shared_ptr<Type> type, | 82 const Type& type, |
83 std::vector<std::unique_ptr<E
xpression>> params); | 83 std::vector<std::unique_ptr<E
xpression>> params); |
84 std::unique_ptr<Statement> convertContinue(const ASTContinueStatement& c); | 84 std::unique_ptr<Statement> convertContinue(const ASTContinueStatement& c); |
85 std::unique_ptr<Statement> convertDiscard(const ASTDiscardStatement& d); | 85 std::unique_ptr<Statement> convertDiscard(const ASTDiscardStatement& d); |
86 std::unique_ptr<Statement> convertDo(const ASTDoStatement& d); | 86 std::unique_ptr<Statement> convertDo(const ASTDoStatement& d); |
87 std::unique_ptr<Expression> convertBinaryExpression(const ASTBinaryExpressio
n& expression); | 87 std::unique_ptr<Expression> convertBinaryExpression(const ASTBinaryExpressio
n& expression); |
88 std::unique_ptr<Extension> convertExtension(const ASTExtension& e); | 88 std::unique_ptr<Extension> convertExtension(const ASTExtension& e); |
89 std::unique_ptr<Statement> convertExpressionStatement(const ASTExpressionSta
tement& s); | 89 std::unique_ptr<Statement> convertExpressionStatement(const ASTExpressionSta
tement& s); |
90 std::unique_ptr<Statement> convertFor(const ASTForStatement& f); | 90 std::unique_ptr<Statement> convertFor(const ASTForStatement& f); |
91 std::unique_ptr<Expression> convertIdentifier(const ASTIdentifier& identifie
r); | 91 std::unique_ptr<Expression> convertIdentifier(const ASTIdentifier& identifie
r); |
92 std::unique_ptr<Statement> convertIf(const ASTIfStatement& s); | 92 std::unique_ptr<Statement> convertIf(const ASTIfStatement& s); |
93 std::unique_ptr<Expression> convertIndex(std::unique_ptr<Expression> base, | 93 std::unique_ptr<Expression> convertIndex(std::unique_ptr<Expression> base, |
94 const ASTExpression& index); | 94 const ASTExpression& index); |
95 std::unique_ptr<InterfaceBlock> convertInterfaceBlock(const ASTInterfaceBloc
k& s); | 95 std::unique_ptr<InterfaceBlock> convertInterfaceBlock(const ASTInterfaceBloc
k& s); |
96 Modifiers convertModifiers(const ASTModifiers& m); | 96 Modifiers convertModifiers(const ASTModifiers& m); |
97 std::unique_ptr<Expression> convertPrefixExpression(const ASTPrefixExpressio
n& expression); | 97 std::unique_ptr<Expression> convertPrefixExpression(const ASTPrefixExpressio
n& expression); |
98 std::unique_ptr<Statement> convertReturn(const ASTReturnStatement& r); | 98 std::unique_ptr<Statement> convertReturn(const ASTReturnStatement& r); |
99 std::unique_ptr<Expression> convertSuffixExpression(const ASTSuffixExpressio
n& expression); | 99 std::unique_ptr<Expression> convertSuffixExpression(const ASTSuffixExpressio
n& expression); |
100 std::unique_ptr<Expression> convertField(std::unique_ptr<Expression> base, | 100 std::unique_ptr<Expression> convertField(std::unique_ptr<Expression> base, |
101 const std::string& field); | 101 const std::string& field); |
102 std::unique_ptr<Expression> convertSwizzle(std::unique_ptr<Expression> base, | 102 std::unique_ptr<Expression> convertSwizzle(std::unique_ptr<Expression> base, |
103 const std::string& fields); | 103 const std::string& fields); |
104 std::unique_ptr<Expression> convertTernaryExpression(const ASTTernaryExpress
ion& expression); | 104 std::unique_ptr<Expression> convertTernaryExpression(const ASTTernaryExpress
ion& expression); |
105 std::unique_ptr<Statement> convertVarDeclarationStatement(const ASTVarDeclar
ationStatement& s); | 105 std::unique_ptr<Statement> convertVarDeclarationStatement(const ASTVarDeclar
ationStatement& s); |
106 std::unique_ptr<Statement> convertWhile(const ASTWhileStatement& w); | 106 std::unique_ptr<Statement> convertWhile(const ASTWhileStatement& w); |
107 | 107 |
108 void checkValid(const Expression& expr); | 108 void checkValid(const Expression& expr); |
109 void markReadFrom(std::shared_ptr<Variable> var); | 109 void markReadFrom(const Variable& var); |
110 void markWrittenTo(const Expression& expr); | 110 void markWrittenTo(const Expression& expr); |
111 | 111 |
112 std::shared_ptr<FunctionDeclaration> fCurrentFunction; | 112 const Context& fContext; |
| 113 const FunctionDeclaration* fCurrentFunction; |
113 std::shared_ptr<SymbolTable> fSymbolTable; | 114 std::shared_ptr<SymbolTable> fSymbolTable; |
114 ErrorReporter& fErrors; | 115 ErrorReporter& fErrors; |
115 | 116 |
116 friend class AutoSymbolTable; | 117 friend class AutoSymbolTable; |
117 friend class Compiler; | 118 friend class Compiler; |
118 }; | 119 }; |
119 | 120 |
120 } | 121 } |
121 | 122 |
122 #endif | 123 #endif |
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