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Merge pull request #43890 from vnen/gdscript-builtin-functions-refactor

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GDScript: Refactor builtin functions
This commit is contained in:
Rémi Verschelde
2020-12-15 20:51:38 +01:00
committed by GitHub
parent f26a765637 c7b6a7adcc
commit abfc528439
17 changed files with 1085 additions and 2116 deletions
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95
modules/gdscript/gdscript_analyzer.cpp
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@@ -37,6 +37,7 @@
#include "core/os/file_access.h"
#include "core/templates/hash_map.h"
#include "gdscript.h"
#include "gdscript_utility_functions.h"
// TODO: Move this to a central location (maybe core?).
static HashMap<StringName, StringName> underscore_map;
@@ -72,6 +73,39 @@ static StringName get_real_class_name(const StringName &p_source) {
return p_source;
}
static MethodInfo info_from_utility_func(const StringName &p_function) {
ERR_FAIL_COND_V(!Variant::has_utility_function(p_function), MethodInfo());
MethodInfo info(p_function);
if (Variant::has_utility_function_return_value(p_function)) {
info.return_val.type = Variant::get_utility_function_return_type(p_function);
if (info.return_val.type == Variant::NIL) {
info.return_val.usage |= PROPERTY_USAGE_NIL_IS_VARIANT;
}
}
if (Variant::is_utility_function_vararg(p_function)) {
info.flags |= METHOD_FLAG_VARARG;
} else {
for (int i = 0; i < Variant::get_utility_function_argument_count(p_function); i++) {
PropertyInfo pi;
#ifdef DEBUG_METHODS_ENABLED
pi.name = Variant::get_utility_function_argument_name(p_function, i);
#else
pi.name = "arg" + itos(i + 1);
#endif
pi.type = Variant::get_utility_function_argument_type(p_function, i);
if (pi.type == Variant::NIL) {
pi.usage |= PROPERTY_USAGE_NIL_IS_VARIANT;
}
info.arguments.push_back(pi);
}
}
return info;
}
void GDScriptAnalyzer::cleanup() {
underscore_map.clear();
}
@@ -1701,7 +1735,6 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool is_awa
// Call to name directly.
StringName function_name = p_call->function_name;
Variant::Type builtin_type = GDScriptParser::get_builtin_type(function_name);
GDScriptFunctions::Function builtin_function = GDScriptParser::get_builtin_function(function_name);
if (builtin_type < Variant::VARIANT_MAX) {
// Is a builtin constructor.
@@ -1843,10 +1876,10 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool is_awa
}
p_call->set_datatype(call_type);
return;
} else if (builtin_function < GDScriptFunctions::FUNC_MAX) {
MethodInfo function_info = GDScriptFunctions::get_info(builtin_function);
} else if (GDScriptUtilityFunctions::function_exists(function_name)) {
MethodInfo function_info = GDScriptUtilityFunctions::get_function_info(function_name);
if (all_is_constant && GDScriptFunctions::is_deterministic(builtin_function)) {
if (all_is_constant && GDScriptUtilityFunctions::is_function_constant(function_name)) {
// Can call on compilation.
Vector<const Variant *> args;
for (int i = 0; i < p_call->arguments.size(); i++) {
@@ -1855,23 +1888,65 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool is_awa
Variant value;
Callable::CallError err;
GDScriptFunctions::call(builtin_function, (const Variant **)args.ptr(), args.size(), value, err);
GDScriptUtilityFunctions::get_function(function_name)(&value, (const Variant **)args.ptr(), args.size(), err);
switch (err.error) {
case Callable::CallError::CALL_ERROR_INVALID_ARGUMENT: {
PropertyInfo wrong_arg = function_info.arguments[err.argument];
push_error(vformat(R"*(Invalid argument for "%s()" function: argument %d should be %s but is %s.)*", GDScriptFunctions::get_func_name(builtin_function), err.argument + 1,
push_error(vformat(R"*(Invalid argument for "%s()" function: argument %d should be %s but is %s.)*", function_name, err.argument + 1,
type_from_property(wrong_arg).to_string(), p_call->arguments[err.argument]->get_datatype().to_string()),
p_call->arguments[err.argument]);
} break;
case Callable::CallError::CALL_ERROR_INVALID_METHOD:
push_error(vformat(R"(Invalid call for function "%s".)", GDScriptFunctions::get_func_name(builtin_function)), p_call);
push_error(vformat(R"(Invalid call for function "%s".)", function_name), p_call);
break;
case Callable::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS:
push_error(vformat(R"*(Too many arguments for "%s()" call. Expected at most %d but received %d.)*", GDScriptFunctions::get_func_name(builtin_function), err.expected, p_call->arguments.size()), p_call);
push_error(vformat(R"*(Too many arguments for "%s()" call. Expected at most %d but received %d.)*", function_name, err.expected, p_call->arguments.size()), p_call);
break;
case Callable::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS:
push_error(vformat(R"*(Too few arguments for "%s()" call. Expected at least %d but received %d.)*", GDScriptFunctions::get_func_name(builtin_function), err.expected, p_call->arguments.size()), p_call);
push_error(vformat(R"*(Too few arguments for "%s()" call. Expected at least %d but received %d.)*", function_name, err.expected, p_call->arguments.size()), p_call);
break;
case Callable::CallError::CALL_ERROR_INSTANCE_IS_NULL:
break; // Can't happen in a builtin constructor.
case Callable::CallError::CALL_OK:
p_call->is_constant = true;
p_call->reduced_value = value;
break;
}
} else {
validate_call_arg(function_info, p_call);
}
p_call->set_datatype(type_from_property(function_info.return_val));
return;
} else if (Variant::has_utility_function(function_name)) {
MethodInfo function_info = info_from_utility_func(function_name);
if (all_is_constant && Variant::get_utility_function_type(function_name) == Variant::UTILITY_FUNC_TYPE_MATH) {
// Can call on compilation.
Vector<const Variant *> args;
for (int i = 0; i < p_call->arguments.size(); i++) {
args.push_back(&(p_call->arguments[i]->reduced_value));
}
Variant value;
Callable::CallError err;
Variant::call_utility_function(function_name, &value, (const Variant **)args.ptr(), args.size(), err);
switch (err.error) {
case Callable::CallError::CALL_ERROR_INVALID_ARGUMENT: {
PropertyInfo wrong_arg = function_info.arguments[err.argument];
push_error(vformat(R"*(Invalid argument for "%s()" function: argument %d should be %s but is %s.)*", function_name, err.argument + 1,
type_from_property(wrong_arg).to_string(), p_call->arguments[err.argument]->get_datatype().to_string()),
p_call->arguments[err.argument]);
} break;
case Callable::CallError::CALL_ERROR_INVALID_METHOD:
push_error(vformat(R"(Invalid call for function "%s".)", function_name), p_call);
break;
case Callable::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS:
push_error(vformat(R"*(Too many arguments for "%s()" call. Expected at most %d but received %d.)*", function_name, err.expected, p_call->arguments.size()), p_call);
break;
case Callable::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS:
push_error(vformat(R"*(Too few arguments for "%s()" call. Expected at least %d but received %d.)*", function_name, err.expected, p_call->arguments.size()), p_call);
break;
case Callable::CallError::CALL_ERROR_INSTANCE_IS_NULL:
break; // Can't happen in a builtin constructor.
@@ -2385,7 +2460,7 @@ void GDScriptAnalyzer::reduce_identifier(GDScriptParser::IdentifierNode *p_ident
// Not found.
// Check if it's a builtin function.
if (parser->get_builtin_function(name) < GDScriptFunctions::FUNC_MAX) {
if (GDScriptUtilityFunctions::function_exists(name)) {
push_error(vformat(R"(Built-in function "%s" cannot be used as an identifier.)", name), p_identifier);
} else {
push_error(vformat(R"(Identifier "%s" not declared in the current scope.)", name), p_identifier);