From 542e15041ea1d93e74a06c588f16ce7956d6a9bb Mon Sep 17 00:00:00 2001
From: hachem <im@hachem.wtf>
Date: Sun, 30 Aug 2026 17:50:49 +0200
Subject: add: parse stack directive

---
 src/main.c          |  5 +++++
 src/parser/ast.h    |  8 ++++++++
 src/parser/parser.c | 22 ++++++++++++++++++++++
 3 files changed, 35 insertions(+)

(limited to 'src')

diff --git a/src/main.c b/src/main.c
index e33734d..9a31f83 100644
--- a/src/main.c
+++ b/src/main.c
@@ -67,6 +67,11 @@ static void print_statement(struct Statement* statement, const char* indent)
 			}
 			printf(")\n");
 			break;
+		case STATEMENT_STACK:
+			printf("%sstack %.*s[%.*s]\n", indent,
+				(int)statement->stack.name.length, statement->stack.name.start,
+				(int)statement->stack.size.length, statement->stack.size.start);
+			break;
 	}
 }
 
diff --git a/src/parser/ast.h b/src/parser/ast.h
index 3fa80da..8281085 100644
--- a/src/parser/ast.h
+++ b/src/parser/ast.h
@@ -67,6 +67,7 @@ enum StatementKind
 	STATEMENT_SYSCALL,
 	STATEMENT_IF,
 	STATEMENT_CALL,
+	STATEMENT_STACK,
 };
 
 struct AssignStatement
@@ -103,6 +104,12 @@ struct CallStatement
 	size_t arg_capacity;
 };
 
+struct StackStatement
+{
+	struct Token name;
+	struct Token size;
+};
+
 struct Statement
 {
 	enum StatementKind kind;
@@ -113,6 +120,7 @@ struct Statement
 		struct GotoStatement jump;
 		struct IfStatement branch;
 		struct CallStatement call;
+		struct StackStatement stack;
 	};
 };
 
diff --git a/src/parser/parser.c b/src/parser/parser.c
index 55203ca..d2a7285 100644
--- a/src/parser/parser.c
+++ b/src/parser/parser.c
@@ -310,6 +310,28 @@ static bool parse_statement(struct Parser* parser, struct Statement* out)
 		return true;
 	}
 
+	if (match_token(parser, TOKEN_STACK))
+	{
+		if (!consume(parser, TOKEN_IDENTIFIER, "expected buffer name after 'stack'"))
+			return false;
+		struct Token name = parser->previous;
+
+		if (!consume(parser, TOKEN_LEFT_BRACKET, "expected '[' after buffer name"))
+			return false;
+
+		if (!consume(parser, TOKEN_INTEGER, "expected buffer size"))
+			return false;
+		struct Token size = parser->previous;
+
+		if (!consume(parser, TOKEN_RIGHT_BRACKET, "expected ']' after buffer size"))
+			return false;
+
+		out->kind = STATEMENT_STACK;
+		out->stack.name = name;
+		out->stack.size = size;
+		return true;
+	}
+
 	if (match_token(parser, TOKEN_GOTO))
 	{
 		if (!consume(parser, TOKEN_IDENTIFIER, "expected label after 'goto'"))
-- 
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