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Fixes cyclic detection from variables assigning themselves to themselves in autocomplete, and restricts initialization of variables from other variables which have not been declared above it in class body

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This commit is contained in:
SaracenOne
2022-02-22 00:54:15 +00:00
parent c55aa03c43
commit b6aa4ed55d
2 changed files with 67 additions and 28 deletions
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66
modules/gdscript/gdscript_analyzer.cpp
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@@ -646,41 +646,51 @@ void GDScriptAnalyzer::resolve_class_interface(GDScriptParser::ClassNode *p_clas
}
}
if (member.variable->datatype_specifier != nullptr) {
datatype = specified_type;
// Check if initalizer is an unset identifier (ie: a variable within scope, but declared below)
if (member.variable->initializer && !member.variable->initializer->get_datatype().is_set()) {
if (member.variable->initializer->type == GDScriptParser::Node::IDENTIFIER) {
GDScriptParser::IdentifierNode *initializer_identifier = static_cast<GDScriptParser::IdentifierNode *>(member.variable->initializer);
push_error(vformat(R"(Identifier "%s" must be declared above current variable.)", initializer_identifier->name), member.variable->initializer);
} else {
ERR_PRINT("Parser bug (please report): tried to assign unset node without an identifier.");
}
} else {
if (member.variable->datatype_specifier != nullptr) {
datatype = specified_type;
if (member.variable->initializer != nullptr) {
if (!is_type_compatible(datatype, member.variable->initializer->get_datatype(), true, member.variable->initializer)) {
// Try reverse test since it can be a masked subtype.
if (!is_type_compatible(member.variable->initializer->get_datatype(), datatype, true, member.variable->initializer)) {
push_error(vformat(R"(Value of type "%s" cannot be assigned to a variable of type "%s".)", member.variable->initializer->get_datatype().to_string(), datatype.to_string()), member.variable->initializer);
} else {
// TODO: Add warning.
if (member.variable->initializer != nullptr) {
if (!is_type_compatible(datatype, member.variable->initializer->get_datatype(), true, member.variable->initializer)) {
// Try reverse test since it can be a masked subtype.
if (!is_type_compatible(member.variable->initializer->get_datatype(), datatype, true, member.variable->initializer)) {
push_error(vformat(R"(Value of type "%s" cannot be assigned to a variable of type "%s".)", member.variable->initializer->get_datatype().to_string(), datatype.to_string()), member.variable->initializer);
} else {
// TODO: Add warning.
mark_node_unsafe(member.variable->initializer);
member.variable->use_conversion_assign = true;
}
} else if (datatype.builtin_type == Variant::INT && member.variable->initializer->get_datatype().builtin_type == Variant::FLOAT) {
#ifdef DEBUG_ENABLED
parser->push_warning(member.variable->initializer, GDScriptWarning::NARROWING_CONVERSION);
#endif
}
if (member.variable->initializer->get_datatype().is_variant()) {
// TODO: Warn unsafe assign.
mark_node_unsafe(member.variable->initializer);
member.variable->use_conversion_assign = true;
}
} else if (datatype.builtin_type == Variant::INT && member.variable->initializer->get_datatype().builtin_type == Variant::FLOAT) {
#ifdef DEBUG_ENABLED
parser->push_warning(member.variable->initializer, GDScriptWarning::NARROWING_CONVERSION);
#endif
}
if (member.variable->initializer->get_datatype().is_variant()) {
// TODO: Warn unsafe assign.
mark_node_unsafe(member.variable->initializer);
member.variable->use_conversion_assign = true;
} else if (member.variable->infer_datatype) {
if (member.variable->initializer == nullptr) {
push_error(vformat(R"(Cannot infer the type of "%s" variable because there's no default value.)", member.variable->identifier->name), member.variable->identifier);
} else if (!datatype.is_set() || datatype.has_no_type()) {
push_error(vformat(R"(Cannot infer the type of "%s" variable because the initial value doesn't have a set type.)", member.variable->identifier->name), member.variable->initializer);
} else if (datatype.is_variant()) {
push_error(vformat(R"(Cannot infer the type of "%s" variable because the initial value is Variant. Use explicit "Variant" type if this is intended.)", member.variable->identifier->name), member.variable->initializer);
} else if (datatype.builtin_type == Variant::NIL) {
push_error(vformat(R"(Cannot infer the type of "%s" variable because the initial value is "null".)", member.variable->identifier->name), member.variable->initializer);
}
datatype.type_source = GDScriptParser::DataType::ANNOTATED_INFERRED;
}
} else if (member.variable->infer_datatype) {
if (member.variable->initializer == nullptr) {
push_error(vformat(R"(Cannot infer the type of "%s" variable because there's no default value.)", member.variable->identifier->name), member.variable->identifier);
} else if (!datatype.is_set() || datatype.has_no_type()) {
push_error(vformat(R"(Cannot infer the type of "%s" variable because the initial value doesn't have a set type.)", member.variable->identifier->name), member.variable->initializer);
} else if (datatype.is_variant()) {
push_error(vformat(R"(Cannot infer the type of "%s" variable because the initial value is Variant. Use explicit "Variant" type if this is intended.)", member.variable->identifier->name), member.variable->initializer);
} else if (datatype.builtin_type == Variant::NIL) {
push_error(vformat(R"(Cannot infer the type of "%s" variable because the initial value is "null".)", member.variable->identifier->name), member.variable->initializer);
}
datatype.type_source = GDScriptParser::DataType::ANNOTATED_INFERRED;
}
datatype.is_constant = false;