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Reorganize evaluation of expr_send/recv to put them closer to expr_assign, to which they are similar

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This commit is contained in:
Brian Anderson 2011-03-12 21:00:39 -05:00 committed by Graydon Hoare
parent f0842030f3
commit a309f74a94
2 changed files with 32 additions and 31 deletions
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4
src/comp/front/ast.rs
View File

@ -232,6 +232,8 @@ tag expr_ {
expr_block(block, ann);
expr_assign(@expr /* TODO: @expr|is_lval */, @expr, ann);
expr_assign_op(binop, @expr /* TODO: @expr|is_lval */, @expr, ann);
expr_send(@expr /* TODO: @expr|is_lval */, @expr, ann);
expr_recv(@expr /* TODO: @expr|is_lval */, @expr, ann);
expr_field(@expr, ident, ann);
expr_index(@expr, @expr, ann);
expr_path(path, option.t[def], ann);
@ -244,8 +246,6 @@ tag expr_ {
expr_check_expr(@expr);
expr_port(ann);
expr_chan(@expr, ann);
expr_send(@expr /* TODO: @expr|is_lval */, @expr, ann);
expr_recv(@expr /* TODO: @expr|is_lval */, @expr, ann);
}
type lit = spanned[lit_];

59
src/comp/middle/fold.rs
View File

@ -143,6 +143,12 @@ type ast_fold[ENV] =
@expr lhs, @expr rhs,
ann a) -> @expr) fold_expr_assign_op,
(fn(&ENV e, &span sp,
@expr lhs, @expr rhs, ann a) -> @expr) fold_expr_send,
(fn(&ENV e, &span sp,
@expr lhs, @expr rhs, ann a) -> @expr) fold_expr_recv,
(fn(&ENV e, &span sp,
@expr e, ident i,
ann a) -> @expr) fold_expr_field,
@ -185,11 +191,6 @@ type ast_fold[ENV] =
(fn(&ENV e, &span sp,
@expr e, ann a) -> @expr) fold_expr_chan,
(fn(&ENV e, &span sp,
@expr lhs, @expr rhs, ann a) -> @expr) fold_expr_send,
(fn(&ENV e, &span sp,
@expr lhs, @expr rhs, ann a) -> @expr) fold_expr_recv,
// Decl folds.
(fn(&ENV e, &span sp,
@ -664,6 +665,18 @@ fn fold_expr[ENV](&ENV env, ast_fold[ENV] fld, &@expr e) -> @expr {
ret fld.fold_expr_assign_op(env_, e.span, op, llhs, rrhs, t);
}
case (ast.expr_send(?lhs, ?rhs, ?t)) {
auto llhs = fold_expr(env_, fld, lhs);
auto rrhs = fold_expr(env_, fld, rhs);
ret fld.fold_expr_send(env_, e.span, llhs, rrhs, t);
}
case (ast.expr_recv(?lhs, ?rhs, ?t)) {
auto llhs = fold_expr(env_, fld, lhs);
auto rrhs = fold_expr(env_, fld, rhs);
ret fld.fold_expr_recv(env_, e.span, llhs, rrhs, t);
}
case (ast.expr_field(?e, ?i, ?t)) {
auto ee = fold_expr(env_, fld, e);
ret fld.fold_expr_field(env_, e.span, ee, i, t);
@ -737,18 +750,6 @@ fn fold_expr[ENV](&ENV env, ast_fold[ENV] fld, &@expr e) -> @expr {
auto ee = fold_expr(env_, fld, x);
ret fld.fold_expr_chan(env_, e.span, ee, t);
}
case (ast.expr_send(?lhs, ?rhs, ?t)) {
auto llhs = fold_expr(env_, fld, lhs);
auto rrhs = fold_expr(env_, fld, rhs);
ret fld.fold_expr_send(env_, e.span, llhs, rrhs, t);
}
case (ast.expr_recv(?lhs, ?rhs, ?t)) {
auto llhs = fold_expr(env_, fld, lhs);
auto rrhs = fold_expr(env_, fld, rhs);
ret fld.fold_expr_recv(env_, e.span, llhs, rrhs, t);
}
}
fail;
@ -1237,6 +1238,16 @@ fn identity_fold_expr_assign_op[ENV](&ENV env, &span sp, ast.binop op,
ret @respan(sp, ast.expr_assign_op(op, lhs, rhs, a));
}
fn identity_fold_expr_send[ENV](&ENV e, &span sp,
@expr lhs, @expr rhs, ann a) -> @expr {
ret @respan(sp, ast.expr_send(lhs, rhs, a));
}
fn identity_fold_expr_recv[ENV](&ENV e, &span sp,
@expr lhs, @expr rhs, ann a) -> @expr {
ret @respan(sp, ast.expr_recv(lhs, rhs, a));
}
fn identity_fold_expr_field[ENV](&ENV env, &span sp,
@expr e, ident i, ann a) -> @expr {
ret @respan(sp, ast.expr_field(e, i, a));
@ -1295,16 +1306,6 @@ fn identity_fold_expr_chan[ENV](&ENV e, &span sp, @expr x, ann a) -> @expr {
ret @respan(sp, ast.expr_chan(x, a));
}
fn identity_fold_expr_send[ENV](&ENV e, &span sp,
@expr lhs, @expr rhs, ann a) -> @expr {
ret @respan(sp, ast.expr_send(lhs, rhs, a));
}
fn identity_fold_expr_recv[ENV](&ENV e, &span sp,
@expr lhs, @expr rhs, ann a) -> @expr {
ret @respan(sp, ast.expr_recv(lhs, rhs, a));
}
// Decl identities.
fn identity_fold_decl_local[ENV](&ENV e, &span sp,
@ -1565,6 +1566,8 @@ fn new_identity_fold[ENV]() -> ast_fold[ENV] {
fold_expr_assign = bind identity_fold_expr_assign[ENV](_,_,_,_,_),
fold_expr_assign_op
= bind identity_fold_expr_assign_op[ENV](_,_,_,_,_,_),
fold_expr_send = bind identity_fold_expr_send[ENV](_,_,_,_,_),
fold_expr_recv = bind identity_fold_expr_recv[ENV](_,_,_,_,_),
fold_expr_field = bind identity_fold_expr_field[ENV](_,_,_,_,_),
fold_expr_index = bind identity_fold_expr_index[ENV](_,_,_,_,_),
fold_expr_path = bind identity_fold_expr_path[ENV](_,_,_,_,_),
@ -1578,8 +1581,6 @@ fn new_identity_fold[ENV]() -> ast_fold[ENV] {
= bind identity_fold_expr_check_expr[ENV](_,_,_),
fold_expr_port = bind identity_fold_expr_port[ENV](_,_,_),
fold_expr_chan = bind identity_fold_expr_chan[ENV](_,_,_,_),
fold_expr_send = bind identity_fold_expr_send[ENV](_,_,_,_,_),
fold_expr_recv = bind identity_fold_expr_recv[ENV](_,_,_,_,_),
fold_decl_local = bind identity_fold_decl_local[ENV](_,_,_),
fold_decl_item = bind identity_fold_decl_item[ENV](_,_,_),