diff options
Diffstat (limited to 'infer.c')
| -rw-r--r-- | infer.c | 39 |
1 files changed, 26 insertions, 13 deletions
@@ -1,16 +1,29 @@ -/* infers */ -static bool infer_expr(Typer *tr, Expression *e, Declaration *decls, - Expression *exprs) { - e->kind = EXPR_VAL; - Value *val = &e->val; - val->type = malloc(sizeof *val->type); - memset(val->type, 0, sizeof *val->type); - val->type->kind = TYPE_BUILTIN; - val->type->builtin = BUILTIN_I64; - val->type->flags = TYPE_IS_RESOLVED; - memset(&e->type, 0, sizeof e->type); - e->type.kind = TYPE_TYPE; - e->type.flags = TYPE_IS_RESOLVED; +/* infers the expression of decls[idx], according to the types of the other decls */ +static bool infer_expr(Typer *tr, size_t idx, Declaration *decls) { + Declaration *decl = decls + idx; + if (decl->flags & DECL_HAS_EXPR) return true; /* already did it */ + + decl->expr.kind = EXPR_VAL; + decl->expr.type.flags = TYPE_IS_RESOLVED; + decl->expr.type.kind = TYPE_TYPE; + decl->expr.val.type = calloc(1,sizeof (Type)); + decl->expr.val.type->kind = TYPE_BUILTIN; + decl->expr.val.type->builtin = BUILTIN_I64; + decl->expr.val.type->flags = TYPE_IS_RESOLVED; + + decl->type = decl->expr.type; + decl->flags |= DECL_FOUND_TYPE; + decl->flags |= DECL_HAS_EXPR; + return true; +} + +/* infers ALL of the expressions in the declarations */ +static bool infer_exprs_in_decls(Typer *tr, Declaration *decls) { + for (size_t idx = 0; idx < arr_len(decls); ++idx) { + if (decls[idx].flags & DECL_INFER) + if (!infer_expr(tr, idx, decls)) + return false; + } return true; } |