lorenzo/lc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

implemented assignment parsing

Browse source
This commit is contained in:
Lorenzo Torres 2025-12-03 13:37:28 +01:00
parent 5902ec8dbc
commit dddb3f2954
2 changed files with 26 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

23
parser.c
View file

@ -973,6 +973,24 @@ static ast_node *parse_statement(parser *p)
else if (match(p, TOKEN_IF)) {
return parse_if(p);
}
else if (match_peek(p, TOKEN_IDENTIFIER) && p->tokens->next && p->tokens->next->type == TOKEN_EQ)
{
/* Variable declaration. */
ast_node *node = arena_alloc(p->allocator, sizeof(ast_node));
node->type = NODE_BINARY;
node->expr.binary.left = parse_factor(p);
advance(p);
node->expr.binary.right = parse_expression(p);
node->expr.binary.operator = OP_ASSIGN;
if (!match(p, TOKEN_SEMICOLON))
{
error(p, "expected `;` after statement.");
return NULL;
}
return node;
}
else if (match_peek(p, TOKEN_IDENTIFIER) && p->tokens->next && p->tokens->next->type == TOKEN_IDENTIFIER)
{
/* Variable declaration. */
@ -1037,6 +1055,11 @@ static void parse(parser *p)
ast_node *tail = p->ast;
ast_node *expr = parse_statement(p);
while (expr) {
if (expr->type != NODE_FUNCTION && expr->type != NODE_VAR_DECL && expr->type != NODE_IMPORT &&
expr->type != NODE_STRUCT && expr->type != NODE_ENUM && expr->type != NODE_ENUM) {
error(p, "expected function, struct, enum, union, global variable or import statement.");
return;
}
tail->expr.unit_node.next = arena_alloc(p->allocator, sizeof(ast_node));
tail->expr.unit_node.next->expr.unit_node.expr = expr;
tail = tail->expr.unit_node.next;

4
test.c
View file

@ -1,5 +1,7 @@
enum {
a = 3,
a = 4,
b,
c
}
a = 3;