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| author | Kartik K. Agaram <vc@akkartik.com> | 2017-12-07 15:59:48 -0800 |
|---|---|---|
| committer | Kartik K. Agaram <vc@akkartik.com> | 2017-12-07 16:00:02 -0800 |
| commit | 07de3e9536fc1f3fc8f8f77f833c4730b6de1b7d (patch) | |
| tree | 77278540a072945823364e0abf80d134a98ecb57 | |
| parent | ba2729b2011da0c7e644d1c25a5ff75fca6bb848 (diff) | |
| download | mu-07de3e9536fc1f3fc8f8f77f833c4730b6de1b7d.tar.gz | |
4151 - specializing calls returning continuations
| -rw-r--r-- | 072recipe.cc | 13 | ||||
| -rw-r--r-- | 076continuation.cc | 19 |
2 files changed, 30 insertions, 2 deletions
diff --git a/072recipe.cc b/072recipe.cc index d05e8575..eaf1baf3 100644 --- a/072recipe.cc +++ b/072recipe.cc @@ -205,7 +205,17 @@ def f x:point -> y:point [ +error: main: product 0 has the wrong type at '2:num <- call {1: (recipe point -> point)}, 34' :(before "End resolve_ambiguous_call(r, index, inst, caller_recipe) Special-cases") -if (inst.name == "call" && !inst.ingredients.empty() && inst.ingredients.at(0).type && inst.ingredients.at(0).type->atom && inst.ingredients.at(0).type->name == "recipe-literal") { +if (inst.name == "call" && first_ingredient_is_recipe_literal(inst)) { + resolve_indirect_ambiguous_call(r, index, inst, caller_recipe); + return; +} +:(code) +bool first_ingredient_is_recipe_literal(const instruction& inst) { + if (inst.ingredients.empty()) return false; + const reagent& ingredient = inst.ingredients.at(0); + return ingredient.type && ingredient.type->atom && ingredient.type->name == "recipe-literal"; +} +void resolve_indirect_ambiguous_call(const recipe_ordinal r, int index, instruction& inst, const recipe& caller_recipe) { instruction inst2; inst2.name = inst.ingredients.at(0).name; for (int i = /*skip recipe*/1; i < SIZE(inst.ingredients); ++i) @@ -215,7 +225,6 @@ if (inst.name == "call" && !inst.ingredients.empty() && inst.ingredients.at(0).t resolve_ambiguous_call(r, index, inst2, caller_recipe); inst.ingredients.at(0).name = inst2.name; inst.ingredients.at(0).set_value(get(Recipe_ordinal, inst2.name)); - return; } :(after "Transform.push_back(check_instruction)") diff --git a/076continuation.cc b/076continuation.cc index df6d0e67..94c3f97a 100644 --- a/076continuation.cc +++ b/076continuation.cc @@ -260,6 +260,25 @@ def g [ # ..even though we never called the continuation -app: continuation called +//: Allow shape-shifting recipes to return continuations. + +:(scenario call_shape_shifting_recipe_with_continuation_mark) +def main [ + 1:num <- call-with-continuation-mark f, 34 +] +def f x:_elem -> y:_elem [ + local-scope + load-ingredients + y <- copy x +] ++mem: storing 34 in location 1 + +:(before "End resolve_ambiguous_call(r, index, inst, caller_recipe) Special-cases") +if (inst.name == "call-with-continuation-mark" && first_ingredient_is_recipe_literal(inst)) { + resolve_indirect_ambiguous_call(r, index, inst, caller_recipe); + return; +} + //: Ensure that the presence of a continuation keeps its stack frames from being reclaimed. :(scenario continuations_preserve_local_scopes) |