From 9a8e3690fec828a986a775ce6ec422b11dede81b Mon Sep 17 00:00:00 2001
From: unintendedfraud <briceunintendedfraud@fastmail.com>
Date: Tue, 19 Mar 2024 13:37:31 +0100
Subject: [PATCH] parser

---
 ast/ast.go       | 19 +++++++++++++++++++
 parser/parser.go | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 51 insertions(+)
 create mode 100644 parser/parser.go

diff --git a/ast/ast.go b/ast/ast.go
index ff5373a..234a3e8 100644
--- a/ast/ast.go
+++ b/ast/ast.go
@@ -1,5 +1,7 @@
 package ast
 
+import "gointerpreter/token"
+
 type Node interface {
 	TokenLiteral() string
 }
@@ -25,3 +27,20 @@ func (p *Program) TokenLiteral() string {
 
 	return ""
 }
+
+type LetStatement struct {
+	Token token.Token
+	Name  *Identifier
+	Value Expression
+}
+
+func (ls *LetStatement) statementNode()       {}
+func (ls *LetStatement) TokenLiteral() string { return ls.Token.Literal }
+
+type Identifier struct {
+	Token token.Token
+	Value string
+}
+
+func (i *Identifier) expressionNode()      {}
+func (i *Identifier) TokenLiteral() string { return i.Token.Literal }
diff --git a/parser/parser.go b/parser/parser.go
new file mode 100644
index 0000000..2ba8ff5
--- /dev/null
+++ b/parser/parser.go
@@ -0,0 +1,32 @@
+package parser
+
+import (
+	"gointerpreter/ast"
+	"gointerpreter/lexer"
+	"gointerpreter/token"
+)
+
+type Parser struct {
+	l *lexer.Lexer
+
+	currToken token.Token
+	peekToken token.Token
+}
+
+func New(l *lexer.Lexer) *Parser {
+	p := &Parser{l: l}
+
+	p.nextToken()
+	p.nextToken()
+
+	return p
+}
+
+func (p *Parser) nextToken() {
+	p.currToken = p.peekToken
+	p.peekToken = p.l.NextToken()
+}
+
+func (p *Parser) ParseProgram() *ast.Program {
+	return nil
+}