chapter 01

1 files changed, 84 insertions, 0 deletions

diff --git a/token/token.odin b/token/token.odin
new file mode 100644
index 0000000..20efd6f
--- /dev/null
+++ b/token/token.odin
@@ -0,0 +1,84 @@
+package token
+
+Token :: union {
+	Asterisk,
+	Bang,
+	Comma,
+	EOF,
+	Else,
+	Equal_Sign,
+	Equals,
+	False,
+	Forward_Slash,
+	Function,
+	Greater_Than,
+	Identifier,
+	If,
+	Illegal,
+	Integer,
+	Left_Brace,
+	Left_Parenthesis,
+	Less_Than,
+	Let,
+	Minus,
+	Not_Equals,
+	Plus,
+	Return,
+	Right_Brace,
+	Right_Parenthesis,
+	Semicolon,
+	True,
+}
+
+Asterisk :: struct {}
+Bang :: struct {}
+Comma :: struct {}
+EOF :: struct {}
+Else :: struct {}
+Equal_Sign :: struct {}
+Equals :: struct {}
+False :: struct {}
+Forward_Slash :: struct {}
+Function :: struct {}
+Greater_Than :: struct {}
+Identifier :: struct {
+	literal: string,
+}
+If :: struct {}
+Illegal :: struct {}
+Integer :: struct {
+	literal: int,
+}
+Left_Brace :: struct {}
+Left_Parenthesis :: struct {}
+Less_Than :: struct {}
+Let :: struct {}
+Minus :: struct {}
+Not_Equals :: struct {}
+Plus :: struct {}
+Return :: struct {}
+Right_Brace :: struct {}
+Right_Parenthesis :: struct {}
+Semicolon :: struct {}
+True :: struct {}
+
+lookup_identifier :: proc(ident: string) -> Token {
+	switch ident {
+	case "fn":
+		return Function{}
+	case "let":
+		return Let{}
+	case "if":
+		return If{}
+	case "else":
+		return Else{}
+	case "true":
+		return True{}
+	case "false":
+		return False{}
+	case "return":
+		return Return{}
+	case:
+		return Identifier{ident}
+	}
+}