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| author | Dmitrii Maganov <vonagam@gmail.com> | 2022-12-28 07:12:16 +0200 |
|---|---|---|
| committer | Dmitrii Maganov <vonagam@gmail.com> | 2022-12-29 03:06:13 +0200 |
| commit | 9507f65e25fd02b1e5817b787afdbef334b964e7 (patch) | |
| tree | 21cd740c8d1c91c20e87b8ca57ef6c9e71796f03 | |
| parent | 7e1bd3f95a10acf60e07a8a6518cc80bfee6fbbf (diff) | |
GDScript: Disallow return with value in void functions
7 files changed, 20 insertions, 0 deletions
diff --git a/modules/gdscript/gdscript_analyzer.cpp b/modules/gdscript/gdscript_analyzer.cpp index fc2e6e94f3..05d19863ca 100644 --- a/modules/gdscript/gdscript_analyzer.cpp +++ b/modules/gdscript/gdscript_analyzer.cpp @@ -2044,6 +2044,9 @@ void GDScriptAnalyzer::resolve_return(GDScriptParser::ReturnNode *p_return) { update_array_literal_element_type(expected_type, static_cast<GDScriptParser::ArrayNode *>(p_return->return_value)); } } + if (has_expected_type && expected_type.is_hard_type() && expected_type.kind == GDScriptParser::DataType::BUILTIN && expected_type.builtin_type == Variant::NIL) { + push_error("A void function cannot return a value.", p_return); + } result = p_return->return_value->get_datatype(); } else { // Return type is null by default. diff --git a/modules/gdscript/tests/scripts/analyzer/errors/return_null_in_void_func.gd b/modules/gdscript/tests/scripts/analyzer/errors/return_null_in_void_func.gd new file mode 100644 index 0000000000..63587942f7 --- /dev/null +++ b/modules/gdscript/tests/scripts/analyzer/errors/return_null_in_void_func.gd @@ -0,0 +1,2 @@ +func test() -> void: + return null diff --git a/modules/gdscript/tests/scripts/analyzer/errors/return_null_in_void_func.out b/modules/gdscript/tests/scripts/analyzer/errors/return_null_in_void_func.out new file mode 100644 index 0000000000..3c09f44ba9 --- /dev/null +++ b/modules/gdscript/tests/scripts/analyzer/errors/return_null_in_void_func.out @@ -0,0 +1,2 @@ +GDTEST_ANALYZER_ERROR +A void function cannot return a value. diff --git a/modules/gdscript/tests/scripts/analyzer/errors/return_variant_in_void_func.gd b/modules/gdscript/tests/scripts/analyzer/errors/return_variant_in_void_func.gd new file mode 100644 index 0000000000..0ee4e7ea36 --- /dev/null +++ b/modules/gdscript/tests/scripts/analyzer/errors/return_variant_in_void_func.gd @@ -0,0 +1,4 @@ +func test() -> void: + var a + a = 1 + return a diff --git a/modules/gdscript/tests/scripts/analyzer/errors/return_variant_in_void_func.out b/modules/gdscript/tests/scripts/analyzer/errors/return_variant_in_void_func.out new file mode 100644 index 0000000000..3c09f44ba9 --- /dev/null +++ b/modules/gdscript/tests/scripts/analyzer/errors/return_variant_in_void_func.out @@ -0,0 +1,2 @@ +GDTEST_ANALYZER_ERROR +A void function cannot return a value. diff --git a/modules/gdscript/tests/scripts/analyzer/features/return_variant_typed.gd b/modules/gdscript/tests/scripts/analyzer/features/return_variant_typed.gd new file mode 100644 index 0000000000..c9caef7d7c --- /dev/null +++ b/modules/gdscript/tests/scripts/analyzer/features/return_variant_typed.gd @@ -0,0 +1,5 @@ +func variant() -> Variant: + return 'variant' + +func test(): + print(variant()) diff --git a/modules/gdscript/tests/scripts/analyzer/features/return_variant_typed.out b/modules/gdscript/tests/scripts/analyzer/features/return_variant_typed.out new file mode 100644 index 0000000000..57fe608cc5 --- /dev/null +++ b/modules/gdscript/tests/scripts/analyzer/features/return_variant_typed.out @@ -0,0 +1,2 @@ +GDTEST_OK +variant |