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/*
*/
#pragma once
#include <memory>
#include <hir/pattern.hpp>
#include <hir/type.hpp>
namespace HIR {
class ExprVisitor;
class ExprNode
{
public:
virtual void visit(ExprVisitor& v) = 0;
virtual ~ExprNode();
};
typedef ::std::unique_ptr<ExprNode> ExprNodeP;
#define NODE_METHODS() \
virtual void visit(ExprVisitor& nv) override;
struct ExprNode_Block:
public ExprNode
{
bool m_is_unsafe;
::std::vector< ExprNodeP > m_nodes;
NODE_METHODS();
};
struct ExprNode_Return:
public ExprNode
{
::HIR::ExprNodeP m_value;
ExprNode_Return(::HIR::ExprNodeP v):
m_value( mv$(m_value) )
{}
NODE_METHODS();
};
struct ExprNode_Loop:
public ExprNode
{
::std::string m_label;
::HIR::ExprNodeP m_code;
NODE_METHODS();
};
struct ExprNode_LoopControl:
public ExprNode
{
::std::string m_label;
bool m_continue;
//::HIR::ExprNodeP m_value;
ExprNode_LoopControl(::std::string label, bool cont):
m_label( mv$(label) ),
m_continue( cont )
{}
NODE_METHODS();
};
struct ExprNode_Let:
public ExprNode
{
::HIR::Pattern m_pattern;
::HIR::TypeRef m_type;
::HIR::ExprNodeP m_value;
ExprNode_Let(::HIR::Pattern pat, ::HIR::TypeRef ty, ::HIR::ExprNodeP val):
m_pattern( mv$(pat) ),
m_type( mv$(ty) ),
m_value( mv$(m_value) )
{}
NODE_METHODS();
};
struct ExprNode_Assign:
public ExprNode
{
enum class Op {
None,
Add, Sub,
Mul, Div, Mod,
And, Or , Xor,
Shr, Shl,
};
Op m_op;
ExprNodeP m_slot;
ExprNodeP m_value;
ExprNode_Assign(Op op, ::HIR::ExprNodeP slot, ::HIR::ExprNodeP value):
m_op(op),
m_slot( mv$(slot) ),
m_value( mv$(value) )
{}
NODE_METHODS();
};
struct ExprNode_BinOp:
public ExprNode
{
enum class Op {
CmpEqu,
CmpNEqu,
CmpLt,
CmpLtE,
CmpGt,
CmpGtE,
BoolAnd,
BoolOr,
Add, Sub,
Mul, Div, Mod,
And, Or , Xor,
Shr, Shl,
};
Op m_op;
::HIR::ExprNodeP m_left;
::HIR::ExprNodeP m_right;
ExprNode_BinOp() {}
ExprNode_BinOp(Op op, ::HIR::ExprNodeP left, ::HIR::ExprNodeP right):
m_op(op),
m_left( mv$(left) ),
m_right( mv$(right) )
{}
NODE_METHODS();
};
struct ExprNode_UniOp:
public ExprNode
{
enum class Op {
Ref, // '& <expr>'
RefMut, // '&mut <expr>'
Invert, // '!<expr>'
Negate, // '-<expr>'
};
Op m_op;
::HIR::ExprNodeP m_value;
ExprNode_UniOp(Op op, ::HIR::ExprNodeP value):
m_op(op),
m_value( mv$(value) )
{}
NODE_METHODS();
};
struct ExprNode_Cast:
public ExprNode
{
::HIR::ExprNodeP m_value;
::HIR::TypeRef m_type;
ExprNode_Cast(::HIR::ExprNodeP value, ::HIR::TypeRef dst_type):
m_value( mv$(value) ),
m_type( mv$(dst_type) )
{}
NODE_METHODS();
};
struct ExprNode_CallPath:
public ExprNode
{
::HIR::Path m_path;
::std::vector<ExprNodeP> m_args;
ExprNode_CallPath(::HIR::Path path, ::std::vector< ::HIR::ExprNodeP> args):
m_path( mv$(path) ),
m_args( mv$(args) )
{}
NODE_METHODS();
};
struct ExprNode_Literal:
public ExprNode
{
TAGGED_UNION(Data, Integer,
(Integer, struct {
::HIR::CoreType m_type; // if not an integer type, it's unknown
uint64_t m_value;
}),
(Float, struct {
::HIR::CoreType m_type; // If not a float type, it's unknown
double m_value;
}),
(Boolean, bool),
(String, ::std::string),
(ByteString, ::std::vector<char>)
);
Data m_data;
ExprNode_Literal(Data data):
m_data( mv$(data) )
{}
NODE_METHODS();
};
#undef NODE_METHODS
class ExprVisitor
{
public:
#define NV(nt) virtual void visit(nt& n) = 0;
NV(ExprNode_Block)
NV(ExprNode_Return)
NV(ExprNode_Let)
NV(ExprNode_Loop)
NV(ExprNode_LoopControl)
NV(ExprNode_Assign)
NV(ExprNode_BinOp)
NV(ExprNode_UniOp)
NV(ExprNode_Cast)
NV(ExprNode_CallPath);
NV(ExprNode_Literal);
};
}
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