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Function lookup now handles overloading

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This commit is contained in:
Nathan Braswell
2016-01-14 12:57:16 -05:00
parent fe6818edfc
commit 785c6a6a8e
2 changed files with 32 additions and 9 deletions
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31
stdlib/ast_transformation.krak
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@@ -280,15 +280,30 @@ obj ast_transformation (Object) {
f->function_call.parameters.for_each(fun(param: *ast_node) print(param);)
return f
}
fun identifier_lookup(name: string, scope: *ast_node): *ast_node {
var results = scope_lookup(name, scope)
if (!results.size) {
println(string("identifier lookup failed for ") + name)
return null<ast_node>()
}
return results[0]
}
fun function_lookup(name: string, scope: *ast_node, param_types: vector<*type>): *ast_node {
var param_string = string()
param_types.for_each(fun(t: *type) param_string += t->to_string() + ", ";)
var results = scope_lookup(name, scope)
for (var i = 0; i < results.size; i++;)
if (is_function(results[i])) {
var func_param_types = get_ast_type(results[i])->parameter_types
if (func_param_types.size != param_types.size)
continue
var param_types_match = true
for (var j = 0; j < param_types.size; j++;) {
if (*func_param_types[j] != *param_types[j]) {
param_types_match = false
break
}
}
if (param_types_match)
return results[i]
} else
println(string("either isn't function or types don't match ") + get_ast_type(results[i])->to_string() + " with needed " + param_string)
println(string("function lookup failed for ") + name)
return null<ast_node>()
}
fun identifier_lookup(name: string, scope: *ast_node): *ast_node {
var results = scope_lookup(name, scope)
if (!results.size) {
println(string("identifier lookup failed for ") + name)