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GDScript: Don't warn on unassigned for builtin-typed variables

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If the type of a variable is a built-in Variant type, then it will
automatically be assigned a default value based on the type. This means
that the explicit initialization may be unnecessary. Thus this commit
removes the warning in such case.

This also changes the meaning of the unassigned warning to happen when
the variable is used before being assigned, not when it has zero
assignments.
This commit is contained in:
George Marques
2024-04-09 14:15:51 -03:00
parent a7b860250f
commit 877802e252
10 changed files with 65 additions and 30 deletions
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22
modules/gdscript/gdscript_parser.cpp
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@@ -2769,10 +2769,6 @@ GDScriptParser::ExpressionNode *GDScriptParser::parse_assignment(ExpressionNode
return parse_expression(false); // Return the following expression.
}
#ifdef DEBUG_ENABLED
VariableNode *source_variable = nullptr;
#endif
switch (p_previous_operand->type) {
case Node::IDENTIFIER: {
#ifdef DEBUG_ENABLED
@@ -2781,8 +2777,6 @@ GDScriptParser::ExpressionNode *GDScriptParser::parse_assignment(ExpressionNode
IdentifierNode *id = static_cast<IdentifierNode *>(p_previous_operand);
switch (id->source) {
case IdentifierNode::LOCAL_VARIABLE:
source_variable = id->variable_source;
id->variable_source->usages--;
break;
case IdentifierNode::LOCAL_CONSTANT:
@@ -2813,16 +2807,10 @@ GDScriptParser::ExpressionNode *GDScriptParser::parse_assignment(ExpressionNode
update_extents(assignment);
make_completion_context(COMPLETION_ASSIGN, assignment);
#ifdef DEBUG_ENABLED
bool has_operator = true;
#endif
switch (previous.type) {
case GDScriptTokenizer::Token::EQUAL:
assignment->operation = AssignmentNode::OP_NONE;
assignment->variant_op = Variant::OP_MAX;
#ifdef DEBUG_ENABLED
has_operator = false;
#endif
break;
case GDScriptTokenizer::Token::PLUS_EQUAL:
assignment->operation = AssignmentNode::OP_ADDITION;
@@ -2878,16 +2866,6 @@ GDScriptParser::ExpressionNode *GDScriptParser::parse_assignment(ExpressionNode
}
complete_extents(assignment);
#ifdef DEBUG_ENABLED
if (source_variable != nullptr) {
if (has_operator && source_variable->assignments == 0) {
push_warning(assignment, GDScriptWarning::UNASSIGNED_VARIABLE_OP_ASSIGN, source_variable->identifier->name);
}
source_variable->assignments += 1;
}
#endif
return assignment;
}