//: So far we've been calling a fixed recipe in each instruction, but we'd //: also like to make the recipe a variable, pass recipes to "higher-order" //: recipes, return recipes from recipes and so on. void test_call_literal_recipe() { run( "def main [\n" " 1:num <- call f, 34\n" "]\n" "def f x:num -> y:num [\n" " local-scope\n" " load-ingredients\n" " y <- copy x\n" "]\n" ); CHECK_TRACE_CONTENTS( "mem: storing 34 in location 1\n" ); } :(before "End Mu Types Initialization") put(Type_ordinal, "recipe-literal", 0); // 'recipe' variables can store recipe-literal type_ordinal recipe = put(Type_ordinal, "recipe", Next_type_ordinal++); get_or_insert(Type, recipe).name = "recipe"; :(after "Deduce Missing Type(x, caller)") if (!x.type) try_initialize_recipe_literal(x, caller); :(before "Type Check in Type-ingredient-aware check_or_set_types_by_name") if (!x.type) try_initialize_recipe_literal(x, variant); :(code) void try_initialize_recipe_literal(reagent& x, const recipe& caller) { if (x.type) return; if (!contains_key(Recipe_ordinal, x.name)) return; if (contains_reagent_with_non_recipe_literal_type(caller, x.name)) return; x.type = new type_tree("recipe-literal"); x.set_value(get(Recipe_ordinal, x.name)); } bool contains_reagent_with_non_recipe_literal_type(const recipe& caller, const string& name) { for (int i = 0; i < SIZE(caller.steps); ++i) { const instruction& inst = caller.steps.at(i); for (int i = 0; i < SIZE(inst.ingredients); ++i) if (is_matching_non_recipe_literal(inst.ingredients.at(i), name)) return true; for (int i = 0; i < SIZE(inst.products); ++i) if (is_matching_non_recipe_literal(inst.products.at(i), name)) return true; } return false; } bool is_matching_non_recipe_literal(const reagent& x, const string& name) { if (x.name != name) return false; if (!x.type) return false; return !x.type->atom || x.type->name != "recipe-literal"; } //: It's confusing to use variable names that are also recipe names. Always //: assume variable types override recipe literals. void test_error_on_recipe_literal_used_as_a_variable() { Hide_errors = true; run( "def main [\n" " local-scope\n" " a:bool <- equal break 0\n" " break:bool <- copy 0\n" "]\n" ); CHECK_TRACE_CONTENTS( "error: main: missing type for 'break' in 'a:bool <- equal break, 0'\n" ); } :(before "End Primitive Recipe Declarations") CALL, :(before "End Primitive Recipe Numbers") put(Recipe_ordinal, "call", CALL); :(before "End Primitive Recipe Checks") case CALL: { if (inst.ingredients.empty()) { raise << maybe(get(Recipe, r).name) << "'call' requires at least one ingredient (the recipe to call)\n" << end(); break; } if (!is_mu_recipe(inst.ingredients.at(0))) { raise << maybe(get(Recipe, r).name) << "first ingredient of 'call' should be a recipe, but got '" << inst.ingredients.at(0).original_string << "'\n" << end(); break; } break; } :(before "End Primitive Recipe Implementations") case CALL: { // Begin Call trace(Callstack_depth+1, "trace") << "indirect 'call': incrementing callstack depth to " << Callstack_depth << end(); ++Callstack_depth; assert(Callstack_depth < Max_depth); if (!ingredients.at(0).at(0)) { raise << maybe(current_recipe_name()) << "tried to call empty recipe in '" << to_string(current_instruction()) << "'" << end(); break; } const call& caller_frame = current_call(); instruction/*copy*/ call_instruction = to_instruction(caller_frame); call_instruction.operation = ingredients.at(0).at(0); call_instruction.ingredients.erase(call_instruction.ingredients.begin()); Current_routine->calls.push_front(call(ingredients.at(0).at(0))); ingredients.erase(ingredients.begin()); // drop the callee finish_call_housekeeping(call_instruction, ingredients); // not done with caller write_products = false; fall_through_to_next_instruction = false; break; } :(code) void test_call_variable() { run( "def main [\n" " {1: (recipe number -> number)} <- copy f\n" " 2:num <- call {1: (recipe number -> number)}, 34\n" "]\n" "def f x:num -> y:num [\n" " local-scope\n" " load-ingredients\n" " y <- copy x\n" "]\n" ); CHECK_TRACE_CONTENTS( "mem: storing 34 in lo
discard """
  nimout: '''0
0
0
'''
"""

import tables

# bug #5327

type
  MyType* = object
    counter: int

proc foo(t: var MyType) =
  echo t.counter

proc bar(t: MyType) =
  echo t.counter

static:
  var myValue: MyType
  myValue.foo # works nicely

  var refValue: ref MyType
  refValue.new

  refValue[].foo # fails to compile
  refValue[].bar # works again nicely

static:
  var otherTable = newTable[string, string]()

  otherTable["hallo"] = "123"
  otherTable["welt"]  = "456"

  doAssert otherTable == {"hallo": "123", "welt": "456"}.newTable
generated by cgit-pink 1.4.1-2-gfad0 (git 2.36.2.497.gbbea4dcf42) at 2025-04-26 10:24:24 +0000
n false; } for (long int i = 0; i < min(SIZE(rlhs.products), SIZE(rrhs.products)); ++i) { if (!types_match(rlhs.products.at(i), rrhs.products.at(i))) return false; } return true; } :(code) void test_call_variable_compound_ingredient() { run( "def main [\n" " {1: (recipe (address number) -> number)} <- copy f\n" " 2:&:num <- copy null\n" " 3:num <- call {1: (recipe (address number) -> number)}, 2:&:num\n" "]\n" "def f x:&:num -> y:num [\n" " local-scope\n" " load-ingredients\n" " y <- deaddress x\n" "]\n" ); CHECK_TRACE_COUNT("error", 0); } //: make sure we don't accidentally break on a recipe literal void test_jump_forbidden_on_recipe_literals() { Hide_errors = true; run( "def foo [\n" " local-scope\n" "]\n" "def main [\n" " local-scope\n" " {\n" " break-if foo\n" " }\n" "]\n" ); // error should be as if foo is not a recipe CHECK_TRACE_CONTENTS( "error: main: missing type for 'foo' in 'break-if foo'\n" ); } :(before "End JUMP_IF Checks") check_for_recipe_literals(inst, get(Recipe, r)); :(before "End JUMP_UNLESS Checks") check_for_recipe_literals(inst, get(Recipe, r)); :(code) void check_for_recipe_literals(const instruction& inst, const recipe& caller) { for (int i = 0; i < SIZE(inst.ingredients); ++i) { if (is_mu_recipe(inst.ingredients.at(i))) { raise << maybe(caller.name) << "missing type for '" << inst.ingredients.at(i).original_string << "' in '" << to_original_string(inst) << "'\n" << end(); if (is_present_in_ingredients(caller, inst.ingredients.at(i).name)) raise << " did you forget 'load-ingredients'?\n" << end(); } } } void test_load_ingredients_missing_error_3() { Hide_errors = true; run( "def foo {f: (recipe num -> num)} [\n" " local-scope\n" " b:num <- call f, 1\n" "]\n" ); CHECK_TRACE_CONTENTS( "error: foo: missing type for 'f' in 'b:num <- call f, 1'\n" "error: did you forget 'load-ingredients'?\n" ); } :(before "End Mu Types Initialization") put(Type_abbreviations, "function", new_type_tree("recipe")); put(Type_abbreviations, "fn", new_type_tree("recipe")); //: copying functions to variables :(code) void test_copy_recipe_to_variable() { run( "def main [\n" " {1: (fn number -> number)} <- copy f\n" " 2:num <- call {1: (function number -> number)}, 34\n" "]\n" "def f x:num -> y:num [\n" " local-scope\n" " load-ingredients\n" " y <- copy x\n" "]\n" ); CHECK_TRACE_CONTENTS( "mem: storing 34 in location 2\n" ); } void test_copy_overloaded_recipe_to_variable() { run( "def main [\n" " local-scope\n" " {x: (fn num -> num)} <- copy f\n" " 1:num/raw <- call x, 34\n" "]\n" // variant f "def f x:bool -> y:bool [\n" " local-scope\n" " load-ingredients\n" " y <- copy x\n" "]\n" // variant f_2 "def f x:num -> y:num [\n" " local-scope\n" " load-ingredients\n" " y <- copy x\n" "]\n" ); // x contains f_2 CHECK_TRACE_CONTENTS( "mem: storing 34 in location 1\n" ); } :(before "End resolve_ambiguous_call(r, index, inst, caller_recipe) Special-cases") if (inst.name == "copy") { for (int i = 0; i < SIZE(inst.ingredients); ++i) { if (!is_recipe_literal(inst.ingredients.at(i))) continue; if (non_ghost_size(get_or_insert(Recipe_variants, inst.ingredients.at(i).name)) < 1) continue; // potentially overloaded recipe string new_name = resolve_ambiguous_call(inst.ingredients.at(i).name, inst.products.at(i), r, index, caller_recipe); if (new_name == "") continue; inst.ingredients.at(i).name = new_name; inst.ingredients.at(i).value = get(Recipe_ordinal, new_name); } return; } :(code) string resolve_ambiguous_call(const string& recipe_name, const reagent& call_types, const recipe_ordinal r, int index, const recipe& caller_recipe) { instruction inst; inst.name = recipe_name; if (!is_mu_recipe(call_types)) return ""; // error raised elsewhere if (is_recipe_literal(call_types)) return ""; // error raised elsewhere construct_fake_call(call_types, inst); resolve_ambiguous_call(r, index, inst, caller_recipe); return inst.name; } void construct_fake_call(const reagent& recipe_var, instruction& out) { assert(recipe_var.type->left->name == "recipe"); type_tree* stem = NULL; for (stem = recipe_var.type->right; stem && stem->left->name != "->"; stem = stem->right) out.ingredients.push_back(copy(stem->left)); if (stem == NULL) return; for (/*skip '->'*/stem = stem->right; stem; stem = stem->right) out.products.push_back(copy(stem->left)); } void test_copy_shape_shifting_recipe_to_variable() { run( "def main [\n" " local-scope\n" " {x: (fn num -> num)} <- copy f\n" " 1:num/raw <- call x, 34\n" "]\n" "def f x:_elem -> y:_elem [\n" " local-scope\n" " load-inputs\n" " y <- copy x\n" "]\n" ); CHECK_TRACE_CONTENTS( "mem: storing 34 in location 1\n" ); } //: passing function literals to (higher-order) functions void test_pass_overloaded_recipe_literal_to_ingredient() { run( // like test_copy_overloaded_recipe_to_variable, except we bind 'x' in // the course of a 'call' rather than 'copy' "def main [\n" " 1:num <- g f\n" "]\n" "def g {x: (fn num -> num)} -> result:num [\n" " local-scope\n" " load-ingredients\n" " result <- call x, 34\n" "]\n" // variant f "def f x:bool -> y:bool [\n" " local-scope\n" " load-ingredients\n" " y <- copy x\n" "]\n" // variant f_2 "def f x:num -> y:num [\n" " local-scope\n" " load-ingredients\n" " y <- copy x\n" "]\n" ); // x contains f_2 CHECK_TRACE_CONTENTS( "mem: storing 34 in location 1\n" ); } :(after "End resolve_ambiguous_call(r, index, inst, caller_recipe) Special-cases") for (int i = 0; i < SIZE(inst.ingredients); ++i) { if (!is_mu_recipe(inst.ingredients.at(i))) continue; if (non_ghost_size(get_or_insert(Recipe_variants, inst.ingredients.at(i).name)) < 1) continue; if (get(Recipe_ordinal, inst.name) < MAX_PRIMITIVE_RECIPES) continue; if (non_ghost_size(get_or_insert(Recipe_variants, inst.name)) > 1) { raise << maybe(caller_recipe.name) << "sorry, we're not yet smart enough to simultaneously guess which overloads you want for '" << inst.name << "' and '" << inst.ingredients.at(i).name << "'\n" << end(); return; } const recipe& callee = get(Recipe, get(Recipe_ordinal, inst.name)); if (!callee.has_header) { raise << maybe(caller_recipe.name) << "sorry, we're not yet smart enough to guess which variant of '" << inst.ingredients.at(i).name << "' you want, when the caller '" << inst.name << "' doesn't have a header\n" << end(); return; } string new_name = resolve_ambiguous_call(inst.ingredients.at(i).name, callee.ingredients.at(i), r, index, caller_recipe); if (new_name != "") { inst.ingredients.at(i).name = new_name; inst.ingredients.at(i).value = get(Recipe_ordinal, new_name); } } :(code) void test_return_overloaded_recipe_literal_to_caller() { run( "def main [\n" " local-scope\n" " {x: (fn num -> num)} <- g\n" " 1:num/raw <- call x, 34\n" "]\n" "def g -> {x: (fn num -> num)} [\n" " local-scope\n" " return f\n" "]\n" // variant f "def f x:bool -> y:bool [\n" " local-scope\n" " load-ingredients\n" " y <- copy x\n" "]\n" // variant f_2 "def f x:num -> y:num [\n" " local-scope\n" " load-ingredients\n" " y <- copy x\n" "]\n" ); // x contains f_2 CHECK_TRACE_CONTENTS( "mem: storing 34 in location 1\n" ); } :(before "End resolve_ambiguous_call(r, index, inst, caller_recipe) Special-cases") if (inst.name == "return" || inst.name == "reply") { for (int i = 0; i < SIZE(inst.ingredients); ++i) { if (!is_recipe_literal(inst.ingredients.at(i))) continue; if (non_ghost_size(get_or_insert(Recipe_variants, inst.ingredients.at(i).name)) < 1) continue; // potentially overloaded recipe if (!caller_recipe.has_header) { raise << maybe(caller_recipe.name) << "sorry, we're not yet smart enough to guess which variant of '" << inst.ingredients.at(i).name << "' you want, without a recipe header\n" << end(); return; } string new_name = resolve_ambiguous_call(inst.ingredients.at(i).name, caller_recipe.products.at(i), r, index, caller_recipe); if (new_name == "") continue; inst.ingredients.at(i).name = new_name; inst.ingredients.at(i).value = get(Recipe_ordinal, new_name); } return; }