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Diffstat (limited to 'archive/1.vm/035lookup.cc')
| -rw-r--r-- | archive/1.vm/035lookup.cc | 664 |
1 files changed, 664 insertions, 0 deletions
diff --git a/archive/1.vm/035lookup.cc b/archive/1.vm/035lookup.cc new file mode 100644 index 00000000..4229651a --- /dev/null +++ b/archive/1.vm/035lookup.cc @@ -0,0 +1,664 @@ +//: Go from an address to the payload it points at using /lookup. +//: +//: The tests in this layer use unsafe operations so as to stay decoupled from +//: 'new'. + +void test_copy_indirect() { + run( + "def main [\n" + // skip alloc id for 10:&:num + " 11:num <- copy 20\n" + // skip alloc id for payload + " 21:num <- copy 94\n" + // Treat locations 10 and 11 as an address to look up, pointing at the + // payload in locations 20 and 21. + " 30:num <- copy 10:&:num/lookup\n" + "]\n" + ); + CHECK_TRACE_CONTENTS( + "mem: storing 94 in location 30\n" + ); +} + +:(before "End Preprocess read_memory(x)") +canonize(x); + +//: similarly, write to addresses pointing at other locations using the +//: 'lookup' property +:(code) +void test_store_indirect() { + run( + "def main [\n" + // skip alloc id for 10:&:num + " 11:num <- copy 10\n" + " 10:&:num/lookup <- copy 94\n" + "]\n" + ); + CHECK_TRACE_CONTENTS( + "mem: storing 94 in location 11\n" + ); +} + +:(before "End Preprocess write_memory(x, data)") +canonize(x); + +//: writes to address 0 always loudly fail +:(code) +void test_store_to_0_fails() { + Hide_errors = true; + run( + "def main [\n" + " 10:&:num <- copy null\n" + " 10:&:num/lookup <- copy 94\n" + "]\n" + ); + CHECK_TRACE_DOESNT_CONTAIN("mem: storing 94 in location 0"); + CHECK_TRACE_CONTENTS( + "error: main: tried to lookup 0 in '10:&:num/lookup <- copy 94'\n" + ); +} + +//: attempts to /lookup address 0 always loudly fail +void test_lookup_0_fails() { + Hide_errors = true; + run( + "def main [\n" + " 10:&:num <- copy null\n" + " 20:num <- copy 10:&:num/lookup\n" + "]\n" + ); + CHECK_TRACE_CONTENTS( + "error: main: tried to lookup 0 in '20:num <- copy 10:&:num/lookup'\n" + ); +} + +void test_lookup_0_dumps_callstack() { + Hide_errors = true; + run( + "def main [\n" + " foo null\n" + "]\n" + "def foo [\n" + " 10:&:num <- next-input\n" + " 20:num <- copy 10:&:num/lookup\n" + "]\n" + ); + CHECK_TRACE_CONTENTS( + "error: foo: tried to lookup 0 in '20:num <- copy 10:&:num/lookup'\n" + "error: called from main: foo null\n" + ); +} + +void canonize(reagent& x) { + if (is_literal(x)) return; + // Begin canonize(x) Lookups + while (has_property(x, "lookup")) + lookup_memory(x); +} + +void lookup_memory(reagent& x) { + if (!x.type || x.type->atom || x.type->left->value != Address_type_ordinal) { + raise << maybe(current_recipe_name()) << "tried to lookup '" << x.original_string << "' but it isn't an address\n" << end(); + dump_callstack(); + return; + } + // compute value + if (x.value == 0) { + raise << maybe(current_recipe_name()) << "tried to lookup 0\n" << end(); + dump_callstack(); + return; + } + lookup_memory_core(x, /*check_for_null*/true); +} + +void lookup_memory_core(reagent& x, bool check_for_null) { + double address = x.value + /*skip alloc id in address*/1; + double new_value = get_or_insert(Memory, address); + trace(Callstack_depth+1, "mem") << "location " << address << " contains " << no_scientific(new_value) << end(); + // check for null + if (check_for_null && new_value == 0) { + if (Current_routine) { + raise << maybe(current_recipe_name()) << "tried to lookup 0 in '" << to_original_string(current_instruction()) << "'\n" << end(); + dump_callstack(); + } + else { + raise << "tried to lookup 0\n" << end(); + } + } + // validate alloc-id + double alloc_id_in_address = get_or_insert(Memory, x.value); + double alloc_id_in_payload = get_or_insert(Memory, new_value); +//? cerr << x.value << ": " << alloc_id_in_address << " vs " << new_value << ": " << alloc_id_in_payload << '\n'; + if (alloc_id_in_address != alloc_id_in_payload) { + raise << maybe(current_recipe_name()) << "address is already abandoned in '" << to_original_string(current_instruction()) << "'\n" << end(); + dump_callstack(); + } + // all well; complete the lookup + x.set_value(new_value+/*skip alloc id in payload*/1); + drop_from_type(x, "address"); + drop_one_lookup(x); +} + +:(after "Begin types_coercible(reagent to, reagent from)") +if (!canonize_type(to)) return false; +if (!canonize_type(from)) return false; +:(after "Begin types_match(reagent to, reagent from)") +if (!canonize_type(to)) return false; +if (!canonize_type(from)) return false; +:(after "Begin types_strictly_match(reagent to, reagent from)") +if (!canonize_type(to)) return false; +if (!canonize_type(from)) return false; + +:(before "End Preprocess is_mu_array(reagent r)") +if (!canonize_type(r)) return false; + +:(before "End Preprocess is_mu_address(reagent r)") +if (!canonize_type(r)) return false; + +:(before "End Preprocess is_mu_number(reagent r)") +if (!canonize_type(r)) return false; +:(before "End Preprocess is_mu_boolean(reagent r)") +if (!canonize_type(r)) return false; +:(before "End Preprocess is_mu_character(reagent r)") +if (!canonize_type(r)) return false; + +:(after "Update product While Type-checking Merge") +if (!canonize_type(product)) continue; + +:(before "End Compute Call Ingredient") +canonize_type(ingredient); +:(before "End Preprocess NEXT_INGREDIENT product") +canonize_type(product); +:(before "End Check RETURN Copy(lhs, rhs) +canonize_type(lhs); +canonize_type(rhs); + +:(code) +bool canonize_type(reagent& r) { + while (has_property(r, "lookup")) { + if (!r.type || r.type->atom || !r.type->left || !r.type->left->atom || r.type->left->value != Address_type_ordinal) { + raise << "cannot perform lookup on '" << r.name << "' because it has non-address type " << to_string(r.type) << '\n' << end(); + return false; + } + drop_from_type(r, "address"); + drop_one_lookup(r); + } + return true; +} + +void drop_one_lookup(reagent& r) { + for (vector<pair<string, string_tree*> >::iterator p = r.properties.begin(); p != r.properties.end(); ++p) { + if (p->first == "lookup") { + r.properties.erase(p); + return; + } + } + assert(false); +} + +//: Tedious fixup to support addresses in container/array instructions of previous layers. +//: Most instructions don't require fixup if they use the 'ingredients' and +//: 'products' variables in run_current_routine(). + +void test_get_indirect() { + run( + "def main [\n" + // skip alloc id for 10:&:point + " 11:num <- copy 20\n" + // skip alloc id for payload + " 21:num <- copy 94\n" + " 22:num <- copy 95\n" + " 30:num <- get 10:&:point/lookup, 0:offset\n" + "]\n" + ); + CHECK_TRACE_CONTENTS( + "mem: storing 94 in location 30\n" + ); +} + +void test_get_indirect2() { + run( + "def main [\n" + // skip alloc id for 10:&:point + " 11:num <- copy 20\n" + // skip alloc id for payload + " 21:num <- copy 94\n" + " 22:num <- copy 95\n" + // skip alloc id for destination + " 31:num <- copy 40\n" + " 30:&:num/lookup <- get 10:&:point/lookup, 0:offset\n" + "]\n" + ); + CHECK_TRACE_CONTENTS( + "mem: storing 94 in location 41\n" + ); +} + +void test_include_nonlookup_properties() { + run( + "def main [\n" + // skip alloc id for 10:&:point + " 11:num <- copy 20\n" + // skip alloc id for payload + " 21:num <- copy 94\n" + " 22:num <- copy 95\n" + " 30:num <- get 10:&:point/lookup/foo, 0:offset\n" + "]\n" + ); + CHECK_TRACE_CONTENTS( + "mem: storing 94 in location 30\n" + ); +} + +:(after "Update GET base in Check") +if (!canonize_type(base)) break; +:(after "Update GET product in Check") +if (!canonize_type(product)) break; +:(after "Update GET base in Run") +canonize(base); + +:(code) +void test_put_indirect() { + run( + "def main [\n" + // skip alloc id for 10:&:point + " 11:num <- copy 20\n" + // skip alloc id for payload + " 21:num <- copy 94\n" + " 22:num <- copy 95\n" + " 10:&:point/lookup <- put 10:&:point/lookup, 0:offset, 96\n" + "]\n" + ); + CHECK_TRACE_CONTENTS( + "mem: storing 96 in location 21\n" + ); +} + +:(after "Update PUT base in Check") +if (!canonize_type(base)) break; +:(after "Update PUT offset in Check") +if (!canonize_type(offset)) break; +:(after "Update PUT base in Run") +canonize(base); + +:(code) +void test_put_product_error_with_lookup() { + Hide_errors = true; + run( + "def main [\n" + " 11:num <- copy 20\n" + " 21:num <- copy 94\n" + " 22:num <- copy 95\n" + " 10:&:point <- put 10:&:point/lookup, x:offset, 96\n" + "]\n" + ); + CHECK_TRACE_CONTENTS( + "error: main: product of 'put' must be first ingredient '10:&:point/lookup', but got '10:&:point'\n" + ); +} + +:(before "End PUT Product Checks") +reagent/*copy*/ p = inst.products.at(0); +if (!canonize_type(p)) break; // error raised elsewhere +reagent/*copy*/ i = inst.ingredients.at(0); +if (!canonize_type(i)) break; // error raised elsewhere +if (!types_strictly_match(p, i)) { + raise << maybe(get(Recipe, r).name) << "product of 'put' must be first ingredient '" << inst.ingredients.at(0).original_string << "', but got '" << inst.products.at(0).original_string << "'\n" << end(); + break; +} + +:(code) +void test_new_error() { + Hide_errors = true; + run( + "def main [\n" + " 1:num/raw <- new num:type\n" + "]\n" + ); + CHECK_TRACE_CONTENTS( + "error: main: product of 'new' has incorrect type: '1:num/raw <- new num:type'\n" + ); +} + +:(after "Update NEW product in Check") +canonize_type(product); + +:(code) +void test_copy_array_indirect() { + run( + "def main [\n" + // skip alloc id for 10:&:@:num + " 11:num <- copy 20\n" + // skip alloc id for payload + " 21:num <- copy 3\n" // array length + " 22:num <- copy 94\n" + " 23:num <- copy 95\n" + " 24:num <- copy 96\n" + " 30:@:num <- copy 10:&:@:num/lookup\n" + "]\n" + ); + CHECK_TRACE_CONTENTS( + "mem: storing 3 in location 30\n" + "mem: storing 94 in location 31\n" + "mem: storing 95 in location 32\n" + "mem: storing 96 in location 33\n" + ); +} + +void test_create_array_indirect() { + run( + "def main [\n" + // skip alloc id for 10:&:@:num:3 + " 11:num <- copy 3000\n" + " 10:&:array:num:3/lookup <- create-array\n" + "]\n" + ); + CHECK_TRACE_CONTENTS( + "mem: storing 3 in location 3001\n" + ); +} + +:(after "Update CREATE_ARRAY product in Check") +if (!canonize_type(product)) break; +:(after "Update CREATE_ARRAY product in Run") +canonize(product); + +:(code) +void test_index_indirect() { + run( + "def main [\n" + // skip alloc id for 10:&:@:num + " 11:num <- copy 20\n" + // skip alloc id for payload + " 21:num <- copy 3\n" // array length + " 22:num <- copy 94\n" + " 23:num <- copy 95\n" + " 24:num <- copy 96\n" + " 30:num <- index 10:&:@:num/lookup, 1\n" + "]\n" + ); + CHECK_TRACE_CONTENTS( + "mem: storing 95 in location 30\n" + ); +} + +:(before "Update INDEX base in Check") +if (!canonize_type(base)) break; +:(before "Update INDEX index in Check") +if (!canonize_type(index)) break; +:(before "Update INDEX product in Check") +if (!canonize_type(product)) break; + +:(before "Update INDEX base in Run") +canonize(base); +:(before "Update INDEX index in Run") +canonize(index); + +:(code) +void test_put_index_indirect() { + run( + "def main [\n" + // skip alloc id for 10:&:@:num + " 11:num <- copy 20\n" + // skip alloc id for payload + " 21:num <- copy 3\n" // array length + " 22:num <- copy 94\n" + " 23:num <- copy 95\n" + " 24:num <- copy 96\n" + " 10:&:@:num/lookup <- put-index 10:&:@:num/lookup, 1, 97\n" + "]\n" + ); + CHECK_TRACE_CONTENTS( + "mem: storing 97 in location 23\n" + ); +} + +void test_put_index_indirect_2() { + run( + "def main [\n" + " 10:num <- copy 3\n" // array length + " 11:num <- copy 94\n" + " 12:num <- copy 95\n" + " 13:num <- copy 96\n" + // skip alloc id for address + " 21:num <- copy 30\n" + // skip alloc id for payload + " 31:num <- copy 1\n" // index + " 10:@:num <- put-index 10:@:num, 20:&:num/lookup, 97\n" + "]\n" + ); + CHECK_TRACE_CONTENTS( + "mem: storing 97 in location 12\n" + ); +} + +void test_put_index_product_error_with_lookup() { + Hide_errors = true; + run( + "def main [\n" + " 11:num <- copy 20\n" + " 21:num <- copy 3\n" // array length + " 22:num <- copy 94\n" + " 23:num <- copy 95\n" + " 24:num <- copy 96\n" + " 10:&:@:num <- put-index 10:&:@:num/lookup, 1, 34\n" + "]\n" + ); + CHECK_TRACE_CONTENTS( + "error: main: product of 'put-index' must be first ingredient '10:&:@:num/lookup', but got '10:&:@:num'\n" + ); +} + +:(before "End PUT_INDEX Product Checks") +reagent/*copy*/ p = inst.products.at(0); +if (!canonize_type(p)) break; // error raised elsewhere +reagent/*copy*/ i = inst.ingredients.at(0); +if (!canonize_type(i)) break; // error raised elsewhere +if (!types_strictly_match(p, i)) { + raise << maybe(get(Recipe, r).name) << "product of 'put-index' must be first ingredient '" << inst.ingredients.at(0).original_string << "', but got '" << inst.products.at(0).original_string << "'\n" << end(); + break; +} + +:(code) +void test_dilated_reagent_in_static_array() { + run( + "def main [\n" + " {1: (array (& num) 3)} <- create-array\n" + " 10:&:num <- new num:type\n" + " {1: (array (& num) 3)} <- put-index {1: (array (& num) 3)}, 0, 10:&:num\n" + " *10:&:num <- copy 94\n" + " 20:num <- copy *10:&:num\n" + "]\n" + ); + CHECK_TRACE_CONTENTS( + "run: creating array from 7 locations\n" + "mem: storing 94 in location 20\n" + ); +} + +:(before "Update PUT_INDEX base in Check") +if (!canonize_type(base)) break; +:(before "Update PUT_INDEX index in Check") +if (!canonize_type(index)) break; +:(before "Update PUT_INDEX value in Check") +if (!canonize_type(value)) break; + +:(before "Update PUT_INDEX base in Run") +canonize(base); +:(before "Update PUT_INDEX index in Run") +canonize(index); + +:(code) +void test_length_indirect() { + run( + "def main [\n" + // skip alloc id for 10:&:@:num + " 11:num <- copy 20\n" + // skip alloc id for payload + " 21:num <- copy 3\n" // array length + " 22:num <- copy 94\n" + " 23:num <- copy 95\n" + " 24:num <- copy 96\n" + " 30:num <- length 10:&:array:num/lookup\n" + "]\n" + ); + CHECK_TRACE_CONTENTS( + "mem: storing 3 in location 30\n" + ); +} + +:(before "Update LENGTH array in Check") +if (!canonize_type(array)) break; +:(before "Update LENGTH array in Run") +canonize(array); + +:(code) +void test_maybe_convert_indirect() { + run( + "def main [\n" + // skip alloc id for 10:&:number-or-point + " 11:num <- copy 20\n" + // skip alloc id for payload + " 21:number-or-point <- merge 0/number, 94\n" + " 30:num, 31:bool <- maybe-convert 10:&:number-or-point/lookup, i:variant\n" + "]\n" + ); + CHECK_TRACE_CONTENTS( + "mem: storing 1 in location 31\n" + "mem: storing 94 in location 30\n" + ); +} + +void test_maybe_convert_indirect_2() { + run( + "def main [\n" + // skip alloc id for 10:&:number-or-point + " 11:num <- copy 20\n" + // skip alloc id for payload + " 21:number-or-point <- merge 0/number, 94\n" + // skip alloc id for 30:&:num + " 31:num <- copy 40\n" + " 30:&:num/lookup, 50:bool <- maybe-convert 10:&:number-or-point/lookup, i:variant\n" + "]\n" + ); + CHECK_TRACE_CONTENTS( + "mem: storing 1 in location 50\n" + "mem: storing 94 in location 41\n" + ); +} + +void test_maybe_convert_indirect_3() { + run( + "def main [\n" + // skip alloc id for 10:&:number-or-point + " 11:num <- copy 20\n" + // skip alloc id for payload + " 21:number-or-point <- merge 0/number, 94\n" + // skip alloc id for 30:&:bool + " 31:num <- copy 40\n" + " 50:num, 30:&:bool/lookup <- maybe-convert 10:&:number-or-point/lookup, i:variant\n" + "]\n" + ); + CHECK_TRACE_CONTENTS( + "mem: storing 1 in location 41\n" + "mem: storing 94 in location 50\n" + ); +} + +:(before "Update MAYBE_CONVERT base in Check") +if (!canonize_type(base)) break; +:(before "Update MAYBE_CONVERT product in Check") +if (!canonize_type(product)) break; +:(before "Update MAYBE_CONVERT status in Check") +if (!canonize_type(status)) break; + +:(before "Update MAYBE_CONVERT base in Run") +canonize(base); +:(before "Update MAYBE_CONVERT product in Run") +canonize(product); +:(before "Update MAYBE_CONVERT status in Run") +canonize(status); + +:(code) +void test_merge_exclusive_container_indirect() { + run( + "def main [\n" + // skip alloc id for 10:&:number-or-point + " 11:num <- copy 20\n" + " 10:&:number-or-point/lookup <- merge 0/number, 34\n" + "]\n" + ); + CHECK_TRACE_CONTENTS( + // skip alloc id + "mem: storing 0 in location 21\n" + "mem: storing 34 in location 22\n" + ); +} + +:(before "Update size_mismatch Check for MERGE(x) +canonize(x); + +//: abbreviation for '/lookup': a prefix '*' + +:(code) +void test_lookup_abbreviation() { + run( + "def main [\n" + // skip alloc id for 10:&:num + " 11:num <- copy 20\n" + // skip alloc id for payload + " 21:num <- copy 94\n" + " 30:num <- copy *10:&:num\n" + "]\n" + ); + CHECK_TRACE_CONTENTS( + "parse: ingredient: {10: (\"&\" \"num\"), \"lookup\": ()}\n" + "mem: storing 94 in location 30\n" + ); +} + +:(before "End Parsing reagent") +{ + while (starts_with(name, "*")) { + name.erase(0, 1); + properties.push_back(pair<string, string_tree*>("lookup", NULL)); + } + if (name.empty()) + raise << "illegal name '" << original_string << "'\n" << end(); +} + +//:: helpers for debugging + +:(before "End Primitive Recipe Declarations") +_DUMP, +:(before "End Primitive Recipe Numbers") +put(Recipe_ordinal, "$dump", _DUMP); +:(before "End Primitive Recipe Implementations") +case _DUMP: { + reagent/*copy*/ after_canonize = current_instruction().ingredients.at(0); + canonize(after_canonize); + cerr << maybe(current_recipe_name()) << current_instruction().ingredients.at(0).name << ' ' << no_scientific(current_instruction().ingredients.at(0).value) << " => " << no_scientific(after_canonize.value) << " => " << no_scientific(get_or_insert(Memory, after_canonize.value)) << '\n'; + break; +} + +//: grab an address, and then dump its value at intervals +//: useful for tracking down memory corruption (writing to an out-of-bounds address) +:(before "End Globals") +int Bar = -1; +:(before "End Primitive Recipe Declarations") +_BAR, +:(before "End Primitive Recipe Numbers") +put(Recipe_ordinal, "$bar", _BAR); +:(before "End Primitive Recipe Implementations") +case _BAR: { + if (current_instruction().ingredients.empty()) { + if (Bar != -1) cerr << Bar << ": " << no_scientific(get_or_insert(Memory, Bar)) << '\n'; + else cerr << '\n'; + } + else { + reagent/*copy*/ tmp = current_instruction().ingredients.at(0); + canonize(tmp); + Bar = tmp.value; + } + break; +} |