tcalc::ast::EvalVisitor Class Reference

Visitor for evaluating AST. More...

#include <eval.hpp>

Inheritance diagram for tcalc::ast::EvalVisitor:

Public Member Functions
	EvalVisitor (EvalContext &ctx)
	Construct a new Eval Visitor object.
error::Result< double >	visit_bin_op (NodePtr< BinaryOpNode > &node) override
	Visit a binary operation node.
error::Result< double >	visit_unary_op (NodePtr< UnaryOpNode > &node) override
	Visit a unary operation node.
error::Result< double >	visit_number (NodePtr< NumberNode > &node) override
	Visit a number node.
error::Result< double >	visit_varref (NodePtr< VarRefNode > &node) override
	Visit a variable reference node.
error::Result< double >	visit_varassign (NodePtr< VarAssignNode > &node) override
	Visit a variable assignment node.
error::Result< double >	visit_fcall (NodePtr< FcallNode > &node) override
	Visit a function call node.
error::Result< double >	visit_fdef (NodePtr< FdefNode > &node) override
	Visit a function definition node.
error::Result< double >	visit_if (NodePtr< IfNode > &node) override
	Visit an if node.
error::Result< double >	visit_import (NodePtr< ProgramImportNode > &node) override
	Visit a program import node.
error::Result< double >	visit_program (NodePtr< ProgramNode > &node) override
	Visit a program node.
Public Member Functions inherited from tcalc::ast::BaseVisitor< double >
virtual error::Result< double >	visit (NodePtr<> &node)
	Visit a number node.

Static Public Attributes
static const std::unordered_map< NodeType, std::function< double(double, double)> >	BINOP_MAP
static const std::unordered_map< NodeType, std::function< double(double)> >	UNARYOP_MAP

Detailed Description

Visitor for evaluating AST.

Constructor & Destructor Documentation

EvalVisitor()

tcalc::ast::EvalVisitor::EvalVisitor ( EvalContext &  ctx )

inline

Construct a new Eval Visitor object.

Parameters

ctx	Evaluation context.

Member Function Documentation

visit_bin_op()

error::Result< double > tcalc::ast::EvalVisitor::visit_bin_op ( NodePtr< BinaryOpNode > &  node )

overridevirtual

Visit a binary operation node.

Parameters

node	Binary operation node.

Returns

error::Result<RT> Result of the visit.

Reimplemented from tcalc::ast::BaseVisitor< double >.

visit_fcall()

error::Result< double > tcalc::ast::EvalVisitor::visit_fcall ( NodePtr< FcallNode > &  node )

overridevirtual

Visit a function call node.

Parameters

node	Function call node.

Returns

error::Result<RT> Result of the visit.

Reimplemented from tcalc::ast::BaseVisitor< double >.

visit_fdef()

error::Result< double > tcalc::ast::EvalVisitor::visit_fdef ( NodePtr< FdefNode > &  node )

overridevirtual

Visit a function definition node.

Parameters

node	Function definition node.

Returns

error::Result<RT> Result of the visit.

Reimplemented from tcalc::ast::BaseVisitor< double >.

visit_if()

error::Result< double > tcalc::ast::EvalVisitor::visit_if ( NodePtr< IfNode > &  node )

overridevirtual

Visit an if node.

Parameters

node

If node.

Returns

error::Result<RT> Result of the visit.

Reimplemented from tcalc::ast::BaseVisitor< double >.

visit_import()

error::Result< double > tcalc::ast::EvalVisitor::visit_import ( NodePtr< ProgramImportNode > &  node )

overridevirtual

Visit a program import node.

Parameters

node	Program import node.

Returns

error::Result<RT> Result of the visit.

Reimplemented from tcalc::ast::BaseVisitor< double >.

visit_number()

error::Result< double > tcalc::ast::EvalVisitor::visit_number ( NodePtr< NumberNode > &  node )

overridevirtual

Visit a number node.

Parameters

node	Number node.

Returns

error::Result<RT> Result of the visit.

Reimplemented from tcalc::ast::BaseVisitor< double >.

visit_program()

error::Result< double > tcalc::ast::EvalVisitor::visit_program ( NodePtr< ProgramNode > &  node )

overridevirtual

Visit a program node.

Parameters

node	Program node.

Returns

error::Result<RT> Result of the visit.

Reimplemented from tcalc::ast::BaseVisitor< double >.

visit_unary_op()

error::Result< double > tcalc::ast::EvalVisitor::visit_unary_op ( NodePtr< UnaryOpNode > &  node )

overridevirtual

Visit a unary operation node.

Parameters

node	Unary operation node.

Returns

error::Result<RT> Result of the visit.

Reimplemented from tcalc::ast::BaseVisitor< double >.

visit_varassign()

error::Result< double > tcalc::ast::EvalVisitor::visit_varassign ( NodePtr< VarAssignNode > &  node )

overridevirtual

Visit a variable assignment node.

Parameters

node	Variable assignment node.

Returns

error::Result<RT> Result of the visit.

Reimplemented from tcalc::ast::BaseVisitor< double >.

visit_varref()

error::Result< double > tcalc::ast::EvalVisitor::visit_varref ( NodePtr< VarRefNode > &  node )

overridevirtual

Visit a variable reference node.

Parameters

node	Variable reference node.

Returns

error::Result<RT> Result of the visit.

Reimplemented from tcalc::ast::BaseVisitor< double >.

Member Data Documentation

BINOP_MAP

const std::unordered_map<NodeType, std::function<double(double, double)> > tcalc::ast::EvalVisitor::BINOP_MAP

inlinestatic

Initial value:

= {
      { NodeType::BINARY_PLUS, std::plus<>() },
      { NodeType::BINARY_MINUS, std::minus<>() },
      { NodeType::BINARY_MULTIPLY, std::multiplies<>() },
      { NodeType::BINARY_DIVIDE, std::divides<>() },
      { NodeType::BINARY_EQUAL, _double_eq },
      { NodeType::BINARY_NOT_EQUAL, _double_noeq },
      { NodeType::BINARY_GREATER, std::greater<>() },
      { NodeType::BINARY_GREATER_EQUAL, std::greater_equal<>() },
      { NodeType::BINARY_LESS, std::less<>() },
      { NodeType::BINARY_LESS_EQUAL, std::less_equal<>() },
      { NodeType::BINARY_AND, std::logical_and<>() },
      { NodeType::BINARY_OR, std::logical_or<>() }
    }

Map of binary operator to function.

UNARYOP_MAP

const std::unordered_map<NodeType, std::function<double(double)> > tcalc::ast::EvalVisitor::UNARYOP_MAP

inlinestatic

Initial value:

= {
      { NodeType::UNARY_PLUS, _double_forward },
      { NodeType::UNARY_MINUS, std::negate<>() },
      { NodeType::UNARY_NOT, std::logical_not<>() }
    }

Map of unary operator to function.

---

The documentation for this class was generated from the following files:

• include/tcalc/visitor/eval.hpp
• src/visitor/eval.cpp