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-rw-r--r--src/lexer.c19
-rw-r--r--src/main.c16
2 files changed, 31 insertions, 4 deletions
diff --git a/src/lexer.c b/src/lexer.c
index 2d2b6fc..2feba2a 100644
--- a/src/lexer.c
+++ b/src/lexer.c
@@ -1,3 +1,6 @@
1#ifndef LEXER_C
2#define LEXER_C
3
1#include "badlib.h" 4#include "badlib.h"
2 5
3#define LEXER_MEM GB(2) 6#define LEXER_MEM GB(2)
@@ -610,3 +613,19 @@ scan_token(Scanner *scanner) {
610 } 613 }
611 return emit_token(current, scanner, TOK_SYMBOL); 614 return emit_token(current, scanner, TOK_SYMBOL);
612} 615}
616
617void
618print_token(Token tok) {
619 println("%d:%d\t%s %s", tok.line, tok.col, token_str[tok.kind], tok.val);
620}
621
622void
623print_tokens(Str path, Token *tokens) {
624 for (sz i = 0; i < array_size(tokens); i++) {
625 Token tok = tokens[i];
626 print("%s:", path);
627 print_token(tok);
628 }
629}
630
631#endif // LEXER_C
diff --git a/src/main.c b/src/main.c
index 666a664..d001d9c 100644
--- a/src/main.c
+++ b/src/main.c
@@ -584,8 +584,12 @@ parse_keyword(Parser *parser) {
584 case TOK_IF: { 584 case TOK_IF: {
585 node = node_alloc(parser, NODE_IF, prev); 585 node = node_alloc(parser, NODE_IF, prev);
586 if (!node) return; 586 if (!node) return;
587 parse_consume(parser, TOK_LPAREN,
588 cstr("expected '(' on if expression"));
587 parse_expr(parser, PREC_LOW); 589 parse_expr(parser, PREC_LOW);
588 node->cond_if = array_pop(parser->nodes); 590 node->cond_if = array_pop(parser->nodes);
591 parse_consume(parser, TOK_RPAREN,
592 cstr("expected ')' on if expression"));
589 parse_expr(parser, PREC_LOW); 593 parse_expr(parser, PREC_LOW);
590 node->cond_expr = array_pop(parser->nodes); 594 node->cond_expr = array_pop(parser->nodes);
591 if (parse_match(parser, TOK_ELSE)) { 595 if (parse_match(parser, TOK_ELSE)) {
@@ -596,10 +600,12 @@ parse_keyword(Parser *parser) {
596 case TOK_MATCH: { 600 case TOK_MATCH: {
597 node = node_alloc(parser, NODE_MATCH, prev); 601 node = node_alloc(parser, NODE_MATCH, prev);
598 if (!node) return; 602 if (!node) return;
603 parse_consume(parser, TOK_LPAREN,
604 cstr("expected '(' on if expression"));
599 parse_expr(parser, PREC_LOW); 605 parse_expr(parser, PREC_LOW);
600 node->match_expr = array_pop(parser->nodes); 606 node->match_expr = array_pop(parser->nodes);
601 parse_consume(parser, TOK_ASSIGN, 607 parse_consume(parser, TOK_RPAREN,
602 cstr("malformed match statement")); 608 cstr("expected ')' on if expression"));
603 parse_consume(parser, TOK_LCURLY, 609 parse_consume(parser, TOK_LCURLY,
604 cstr("expected block of match cases")); 610 cstr("expected block of match cases"));
605 while (!parse_match(parser, TOK_RCURLY) && !parser->panic) { 611 while (!parse_match(parser, TOK_RCURLY) && !parser->panic) {
@@ -686,10 +692,12 @@ parse_keyword(Parser *parser) {
686 case TOK_WHILE: { 692 case TOK_WHILE: {
687 node = node_alloc(parser, NODE_WHILE, prev); 693 node = node_alloc(parser, NODE_WHILE, prev);
688 if (!node) return; 694 if (!node) return;
695 parse_consume(parser, TOK_LPAREN,
696 cstr("expected '(' on while expression"));
689 parse_expr(parser, PREC_LOW); 697 parse_expr(parser, PREC_LOW);
690 node->while_cond = array_pop(parser->nodes); 698 node->while_cond = array_pop(parser->nodes);
691 parse_consume(parser, TOK_ASSIGN, 699 parse_consume(parser, TOK_RPAREN,
692 cstr("malformed while expression")); 700 cstr("expected ')' on while expression"));
693 parse_expr(parser, PREC_LOW); 701 parse_expr(parser, PREC_LOW);
694 node->while_expr = array_pop(parser->nodes); 702 node->while_expr = array_pop(parser->nodes);
695 } break; 703 } break;