66 lines
2.0 KiB
C++
66 lines
2.0 KiB
C++
#pragma once
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#include "Expression.h"
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#include "Statement.h"
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#include "helperFunctions/ShortHands.h"
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#include "TypeWrapper.h"
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#include "Environment.h"
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#include "StdLib.h"
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class Return : public std::exception {
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public:
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sptr(Object) value;
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Return(sptr(Object) value) : value(value) {}
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const char* what() const noexcept override {
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return "Return";
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}
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};
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class Interpreter : ExprVisitor, StmtVisitor
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{
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public:
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sptr(Object) visitBinaryExpr(sptr(BinaryExpr) expression) override;
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sptr(Object) visitGroupingExpr(sptr(GroupingExpr) expression) override;
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sptr(Object) visitLiteralExpr(sptr(LiteralExpr) expression) override;
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sptr(Object) visitUnaryExpr(sptr(UnaryExpr) expression) override;
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sptr(Object) visitVariableExpr(sptr(VarExpr) expression) override;
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sptr(Object) visitAssignExpr(sptr(AssignExpr) expression) override;
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sptr(Object) visitCallExpr(sptr(CallExpr) expression) override;
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void visitBlockStmt(sptr(BlockStmt) statement) override;
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void visitExpressionStmt(sptr(ExpressionStmt) statement) override;
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void visitVarStmt(sptr(VarStmt) statement) override;
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void visitFunctionStmt(sptr(FunctionStmt) statement) override;
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void visitReturnStmt(sptr(ReturnStmt) statement) override;
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void visitIfStmt(sptr(IfStmt) statement) override;
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void interpret(std::vector<sptr(Stmt)> statements);
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explicit Interpreter(bool IsInteractive) : IsInteractive(IsInteractive){
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environment = msptr(Environment)();
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// Add standard library functions
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addStdLibFunctions();
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}
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virtual ~Interpreter() = default;
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private:
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sptr(Environment) environment;
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bool IsInteractive;
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sptr(Object) evaluate(sptr(Expr) expr);
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bool isTruthy(sptr(Object) object);
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bool isEqual(sptr(Object) a, sptr(Object) b);
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bool isWholeNumer(double num);
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void execute(sptr(Stmt) statement);
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void executeBlock(std::vector<sptr(Stmt)> statements, sptr(Environment) env);
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void addStdLibFunctions();
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public:
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std::string stringify(sptr(Object) object);
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};
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