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nazrin 2025-06-02 22:22:04 +00:00
parent 52a7b73a9e
commit d8ac625429
18 changed files with 417 additions and 186 deletions
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52
src/jlox/expr.d
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@ -4,8 +4,6 @@ import std.conv;
import std.stdio;
import std.meta : AliasSeq;
import taggedalgebraic;
import jlox.token;
import jlox.tokentype;
import common.util;
@ -15,13 +13,16 @@ abstract class Expr{
R visit(Assign expr);
R visit(Binary expr);
R visit(Call expr);
R visit(Get expr);
R visit(Grouping expr);
R visit(Literal expr);
R visit(Logical expr);
R visit(Set expr);
R visit(This expr);
R visit(Unary expr);
R visit(Variable expr);
}
private alias rTypes = AliasSeq!(string, TValue, void);
private alias rTypes = AliasSeq!(string, LoxValue, void);
static foreach(T; rTypes)
abstract T accept(Visitor!T visitor);
private template defCtorAndAccept(){
@ -47,12 +48,17 @@ abstract class Expr{
Expr[] arguments;
mixin defCtorAndAccept;
}
static class Get : typeof(this){
Expr object;
Token name;
mixin defCtorAndAccept;
}
static class Grouping : typeof(this){
Expr expression;
mixin defCtorAndAccept;
}
static class Literal : typeof(this){
TValue value;
LoxValue value;
mixin defCtorAndAccept;
}
static class Logical : typeof(this){
@ -61,6 +67,16 @@ abstract class Expr{
Expr right;
mixin defCtorAndAccept;
}
static class Set : typeof(this){
Expr object;
Token name;
Expr value;
mixin defCtorAndAccept;
}
static class This : typeof(this){
Token keyword;
mixin defCtorAndAccept;
}
static class Unary : typeof(this){
Token operator;
Expr right;
@ -72,31 +88,3 @@ abstract class Expr{
}
}
/* class AstPrinter : Expr.Visitor!string{ */
/* string print(Expr expr){ */
/* return expr.accept(this); */
/* } */
/* string parenthesize(Args...)(string name, Args args){ */
/* string s = "(" ~ name; */
/* static foreach(expr; args){ */
/* s ~= " "; */
/* s ~= expr.accept(this); */
/* } */
/* return s ~ ")"; */
/* } */
/* string visit(Expr.Binary expr){ */
/* return parenthesize(expr.operator.lexeme, expr.left, expr.right); */
/* } */
/* string visit(Expr.Grouping expr){ */
/* return parenthesize("group", expr.expression); */
/* } */
/* string visit(Expr.Literal expr){ */
/* if(expr.value.isNil) */
/* return "nil"; */
/* return expr.value.to!string; */
/* } */
/* string visit(Expr.Unary expr){ */
/* return parenthesize(expr.operator.lexeme, expr.right); */
/* } */
/* } */