;
for~withelse {-> expr}
- = kwfor no [ids]:idlist [n2]:no kwin [n3]:no expr [n4]:no kwdo stmtso_withend label {-> New expr.for(kwfor, [ids.id], kwin, expr, kwdo, stmtso_withend.expr, label)}
- | {nolabel} kwfor no [ids]:idlist [n2]:no kwin [n3]:no expr [n4]:no kwdo stmtso~withelse {-> New expr.for(kwfor, [ids.id], kwin, expr, kwdo, stmtso~withelse.expr, Null)}
+ = kwfor no for_groups [n4]:no kwdo stmtso_withend label {-> New expr.for(kwfor, [for_groups.for_group], kwdo, stmtso_withend.expr, label)}
+ | {nolabel} kwfor no for_groups [n4]:no kwdo stmtso~withelse {-> New expr.for(kwfor, [for_groups.for_group], kwdo, stmtso~withelse.expr, Null)}
+ ;
+
+for_groups {-> for_group*}
+ = {one} for_group {-> [for_group]}
+ | {many} for_groups no comma [n2]:no for_group {-> [for_groups.for_group, for_group] }
+ ;
+for_group
+ = [ids]:idlist [n2]:no kwin [n3]:no expr {-> New for_group([ids.id], kwin, expr)}
;
with~withelse {-> expr}
;
array_item {-> expr}
= expr no {-> expr}
- | {for} kwfor no [ids]:idlist [n2]:no kwin [n3]:no expr [n4]:no kwdo [block]:array_item {-> New expr.for(kwfor, [ids.id], kwin, expr, kwdo, block.expr, Null)}
+ | {for} kwfor no for_groups [n4]:no kwdo [block]:array_item {-> New expr.for(kwfor, [for_groups.for_group], kwdo, block.expr, Null)}
| {if} kwif [n1]:no expr [n2]:no kwthen [n3]:no [then]:array_item {-> New expr.if(kwif, expr, kwthen, then.expr, Null, Null)}
;
| {ifexpr} kwif expr kwthen [then]:expr kwelse [else]:expr
| {while} kwwhile expr kwdo [block]:expr? label?
| {loop} kwloop [block]:expr? label?
- | {for} kwfor [ids]:id* kwin expr kwdo [block]:expr? label?
+ | {for} kwfor [groups]:for_group* kwdo [block]:expr? label?
| {with} kwwith expr kwdo [block]:expr? label?
| {assert} kwassert id? expr kwelse? [else]:expr?
| {once} kwonce expr
| {ll} [op]:lleq
| {gg} [op]:ggeq
;
+for_group
+ = [ids]:id* kwin expr
+ ;
module_name = quad? [path]:id* id;
extern_calls = kwimport [extern_calls]:extern_call*
# The `for` keyword
var n_kwfor: TKwfor is writable, noinit
+ # The list of groups to iterate
+ var n_groups = new ANodes[AForGroup](self)
+
+ # The `do` keyword
+ var n_kwdo: TKwdo is writable, noinit
+
+ # The body of the loop
+ var n_block: nullable AExpr = null is writable
+end
+
+# A collection iterated by a for, its automatic variables and its implicit iterator.
+#
+# Standard `for` iterate on a single collection.
+# Multiple `for` can iterate on more than one collection at once.
+class AForGroup
+ super Prod
+
# The list of name of the automatic variables
var n_ids = new ANodes[TId](self)
# The expression used as the collection to iterate on
var n_expr: AExpr is writable, noinit
-
- # The `do` keyword
- var n_kwdo: TKwdo is writable, noinit
-
- # The body of the loop
- var n_block: nullable AExpr = null is writable
end
# A `with` statement