From 6d30c64216cd4d0b1b2a20a167d85c7fc6534378 Mon Sep 17 00:00:00 2001
From: iamcheeseman <dev@iamcheeseman.net>
Date: Tue, 7 Apr 2026 10:46:07 -0400
Subject: microscript: add arrays

---
 uscript/parser.c | 39 ++++++++++++++++++++++++++++++++++++++-
 1 file changed, 38 insertions(+), 1 deletion(-)

(limited to 'uscript/parser.c')

diff --git a/uscript/parser.c b/uscript/parser.c
index 857fad3..404e5e5 100644
--- a/uscript/parser.c
+++ b/uscript/parser.c
@@ -345,6 +345,29 @@ void parse_literal(struct parser *p)
         }
 }
 
+static
+void parse_arr(struct parser *p)
+{
+        int arr_len = 0;
+        if (p->cur.kind != ']') {
+                do {
+                        if (p->cur.kind == ']')
+                                break;
+                        expr(p);
+                        arr_len++;
+                } while (consume(p, ','));
+        }
+
+        expect(p, ']', "unterminated array literal");
+
+        if (arr_len > UINT8_MAX) {
+                show_error(p, p->prev, "too many literals the array (max 255)");
+        }
+
+        parser_add_byte(p, BC_ARR);
+        parser_add_byte(p, (u8)arr_len);
+}
+
 static
 void parse_ident(struct parser *p)
 {
@@ -438,13 +461,27 @@ void parse_call(struct parser *p)
         parser_add_byte(p, argc);
 }
 
+static
+void parse_index(struct parser *p)
+{
+        expr(p);
+        expect(p, ']', "expected ']'");
+
+        if (consume(p, '=')) {
+                expr(p);
+                parser_add_byte(p, BC_SET_INDEX);
+        } else {
+                parser_add_byte(p, BC_GET_INDEX);
+        }
+}
+
 static
 struct expr expressions[] = {
         ['(']             = {parse_grouping, parse_call, PREC_CALL},
         [')']             = {NULL, NULL, PREC_NONE},
         ['{']             = {NULL, NULL, PREC_NONE},
         ['}']             = {NULL, NULL, PREC_NONE},
-        ['[']             = {NULL, NULL, PREC_NONE},
+        ['[']             = {parse_arr, parse_index, PREC_CALL},
         [']']             = {NULL, NULL, PREC_NONE},
         [',']             = {NULL, NULL, PREC_NONE},
         [';']             = {NULL, NULL, PREC_NONE},
-- 
cgit v1.3-2-g0d8e