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Operator overloading with templates works now

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This commit is contained in:
Nathan Braswell
2016-02-24 19:41:49 -05:00
parent a14034aad0
commit 40e3536e10
2 changed files with 22 additions and 16 deletions
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36
stdlib/ast_transformation.krak
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@@ -368,6 +368,7 @@ obj ast_transformation (Object) {
return transform_value(node, scope)
}
print("FAILED TO TRANSFORM: "); print(name + ": "); println(concat_symbol_tree(node))
while(1) {}
return null<ast_node>()
}
fun transform_all(nodes: vector<*tree<symbol>>, scope: *ast_node, template_replacements: map<string, *type>): vector<*ast_node> {
@@ -598,24 +599,24 @@ obj ast_transformation (Object) {
if (node->children.size == 1) {
var possible_value = transform(node->children[0], scope, searching_for, template_replacements)
if (!possible_value) match (searching_for) {
search_type::function(type_vec) possible_value = find_or_instantiate_template_function(node->children[0], null<tree<symbol>>(), scope, type_vec, template_replacements, map<string, *type>());
search_type::function(type_vec) possible_value = find_or_instantiate_template_function(concat_symbol_tree(node->children[0]), null<tree<symbol>>(), scope, type_vec, template_replacements, map<string, *type>());
}
if (!possible_value)
println(concat_symbol_tree(node) + ": HAS NO POSSIBLE FUNCTION OR FUNCTION TEMPLATE SOLUTIONS")
error(concat_symbol_tree(node) + ": HAS NO POSSIBLE FUNCTION OR FUNCTION TEMPLATE SOLUTIONS")
return possible_value
} else if (node->children.size == 2) {
var template_inst = get_node("template_inst", node)
if (template_inst) {
var identifier = get_node("scoped_identifier", node)
var result = null<ast_node>()
match (searching_for) {
// I guess this should never happen?
search_type::none() {
println("TE<PLATE LOOKUO MAKES NO SENSE")
return null<ast_node>()
}
search_type::function(type_vec) return find_or_instantiate_template_function(identifier, template_inst, scope, type_vec, template_replacements, map<string, *type>())
search_type::none() error("TE<PLATE LOOKUO MAKES NO SENSE")
search_type::function(type_vec) result = find_or_instantiate_template_function(concat_symbol_tree(identifier), template_inst, scope, type_vec, template_replacements, map<string, *type>())
}
println("NEVER EVER HAPPEN")
if (!result)
error("Could not find templated function even though had a template_inst")
return result
}
var check_if_post = concat_symbol_tree(node->children[1])
if (check_if_post == "--" || check_if_post == "++") {
@@ -644,9 +645,11 @@ obj ast_transformation (Object) {
inherited_replacements[parent->template.template_types[i]] = parent->template.instantiated_map.reverse_get(get_ast_type(first_param)->type_def)[i].clone()
}
if (template_inst)
second_param = find_or_instantiate_template_function(node->children[2], template_inst, get_ast_type(first_param)->type_def, type_vec, template_replacements, inherited_replacements);
second_param = find_or_instantiate_template_function(concat_symbol_tree(node->children[2]), template_inst, get_ast_type(first_param)->type_def, type_vec, template_replacements, inherited_replacements);
else
second_param = find_or_instantiate_template_function(node->children[2], null<tree<symbol>>(), get_ast_type(first_param)->type_def, type_vec, template_replacements, inherited_replacements);
second_param = find_or_instantiate_template_function(concat_symbol_tree(node->children[2]), null<tree<symbol>>(), get_ast_type(first_param)->type_def, type_vec, template_replacements, inherited_replacements);
if (!second_param)
error("Could not find method!")
}
}
} else {
@@ -657,19 +660,22 @@ obj ast_transformation (Object) {
var parameter_types = parameters.map(fun(param: *ast_node): *type return get_ast_type(param);)
// check for operator overloading
var possible_overload = null<ast_node>()
if (parameter_types[0]->is_object()) {
if (parameter_types[0]->is_object() && parameter_types[0]->indirection == 0) {
possible_overload = function_lookup(string("operator")+func_name, parameter_types.first()->type_def, parameter_types.slice(1,-1))
if (possible_overload)
if (!possible_overload)
possible_overload = find_or_instantiate_template_function(string("operator")+func_name, null<tree<symbol>>(), parameter_types.first()->type_def, parameter_types.slice(1,-1), template_replacements, map<string, *type>())
if (possible_overload)
return make_method_call(parameters.first(), possible_overload, parameters.slice(1,-1))
}
possible_overload = function_lookup(string("operator")+func_name, scope, parameter_types)
if (!possible_overload)
possible_overload = find_or_instantiate_template_function(string("operator")+func_name, null<tree<symbol>>(), scope, parameter_types, template_replacements, map<string, *type>())
if (possible_overload)
return ast_function_call_ptr(possible_overload, parameters)
return ast_function_call_ptr(get_builtin_function(func_name, parameter_types), parameters)
}
fun find_or_instantiate_template_function(identifier: *tree<symbol>, template_inst: *tree<symbol>, scope: *ast_node, param_types: vector<*type>, template_replacements: map<string, *type>, replacements_base: map<string, *type>): *ast_node {
fun find_or_instantiate_template_function(name: string, template_inst: *tree<symbol>, scope: *ast_node, param_types: vector<*type>, template_replacements: map<string, *type>, replacements_base: map<string, *type>): *ast_node {
// replacments base is for templated methods starting off with the replacements of their parent (possibly templated) object
var name = concat_symbol_tree(identifier)
println(string("trying to instantiate a template function: ") + name)
var results = scope_lookup(name, scope)
var real_types = vector<*type>()
@@ -744,7 +750,7 @@ obj ast_transformation (Object) {
println(string("this paticular ") + name + " did not satisfy params")
}
}
println("FREAK OUT MACHINE")
println("no working templated method found")
return null<ast_node>()
}
}

2
tests/test_template_operator_overload.krak
View File

@@ -1,4 +1,4 @@
import io:*
import simple_print:*
obj it {
fun operator+<U>(other: U): it {