Merge pull request #1647 from Microsoft/badPropNamesInConstEnums
disallow incorrect literal property names in indexed access for const en...
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8256ddf756
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@ -5605,8 +5605,11 @@ module ts {
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return unknownType;
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}
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if (isConstEnumObjectType(objectType) && node.argumentExpression && node.argumentExpression.kind !== SyntaxKind.StringLiteral) {
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error(node.argumentExpression, Diagnostics.Index_expression_arguments_in_const_enums_must_be_of_type_string);
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var isConstEnum = isConstEnumObjectType(objectType);
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if (isConstEnum &&
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(!node.argumentExpression || node.argumentExpression.kind !== SyntaxKind.StringLiteral)) {
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error(node.argumentExpression, Diagnostics.A_const_enum_member_can_only_be_accessed_using_a_string_literal);
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return unknownType;
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}
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// TypeScript 1.0 spec (April 2014): 4.10 Property Access
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@ -5627,6 +5630,10 @@ module ts {
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getNodeLinks(node).resolvedSymbol = prop;
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return getTypeOfSymbol(prop);
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}
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else if (isConstEnum) {
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error(node.argumentExpression, Diagnostics.Property_0_does_not_exist_on_const_enum_1, name, symbolToString(objectType.symbol));
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return unknownType;
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}
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}
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}
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@ -369,9 +369,10 @@ module ts {
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Enum_declarations_must_all_be_const_or_non_const: { code: 4082, category: DiagnosticCategory.Error, key: "Enum declarations must all be const or non-const." },
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In_const_enum_declarations_member_initializer_must_be_constant_expression: { code: 4083, category: DiagnosticCategory.Error, key: "In 'const' enum declarations member initializer must be constant expression.", isEarly: true },
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const_enums_can_only_be_used_in_property_or_index_access_expressions_or_the_right_hand_side_of_an_import_declaration_or_export_assignment: { code: 4084, category: DiagnosticCategory.Error, key: "'const' enums can only be used in property or index access expressions or the right hand side of an import declaration or export assignment." },
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Index_expression_arguments_in_const_enums_must_be_of_type_string: { code: 4085, category: DiagnosticCategory.Error, key: "Index expression arguments in 'const' enums must be of type 'string'." },
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A_const_enum_member_can_only_be_accessed_using_a_string_literal: { code: 4085, category: DiagnosticCategory.Error, key: "A const enum member can only be accessed using a string literal.", isEarly: true },
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const_enum_member_initializer_was_evaluated_to_a_non_finite_value: { code: 4086, category: DiagnosticCategory.Error, key: "'const' enum member initializer was evaluated to a non-finite value." },
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const_enum_member_initializer_was_evaluated_to_disallowed_value_NaN: { code: 4087, category: DiagnosticCategory.Error, key: "'const' enum member initializer was evaluated to disallowed value 'NaN'." },
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Property_0_does_not_exist_on_const_enum_1: { code: 4088, category: DiagnosticCategory.Error, key: "Property '{0}' does not exist on 'const' enum '{1}'.", isEarly: true },
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The_current_host_does_not_support_the_0_option: { code: 5001, category: DiagnosticCategory.Error, key: "The current host does not support the '{0}' option." },
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Cannot_find_the_common_subdirectory_path_for_the_input_files: { code: 5009, category: DiagnosticCategory.Error, key: "Cannot find the common subdirectory path for the input files." },
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Cannot_read_file_0_Colon_1: { code: 5012, category: DiagnosticCategory.Error, key: "Cannot read file '{0}': {1}" },
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@ -419,7 +420,7 @@ module ts {
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Unsupported_locale_0: { code: 6049, category: DiagnosticCategory.Error, key: "Unsupported locale '{0}'." },
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Unable_to_open_file_0: { code: 6050, category: DiagnosticCategory.Error, key: "Unable to open file '{0}'." },
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Corrupted_locale_file_0: { code: 6051, category: DiagnosticCategory.Error, key: "Corrupted locale file {0}." },
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Raise_error_on_expressions_and_declarations_with_an_implied_any_type: { code: 6052, category: DiagnosticCategory.Message, key: "Warn on expressions and declarations with an implied 'any' type." },
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Raise_error_on_expressions_and_declarations_with_an_implied_any_type: { code: 6052, category: DiagnosticCategory.Message, key: "Raise error on expressions and declarations with an implied 'any' type." },
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File_0_not_found: { code: 6053, category: DiagnosticCategory.Error, key: "File '{0}' not found." },
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File_0_must_have_extension_ts_or_d_ts: { code: 6054, category: DiagnosticCategory.Error, key: "File '{0}' must have extension '.ts' or '.d.ts'." },
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Suppress_noImplicitAny_errors_for_indexing_objects_lacking_index_signatures: { code: 6055, category: DiagnosticCategory.Message, key: "Suppress noImplicitAny errors for indexing objects lacking index signatures." },
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@ -1572,9 +1572,10 @@
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"category": "Error",
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"code": 4084
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},
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"Index expression arguments in 'const' enums must be of type 'string'.": {
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"A const enum member can only be accessed using a string literal.": {
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"category": "Error",
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"code": 4085
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"code": 4085,
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"isEarly": true
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},
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"'const' enum member initializer was evaluated to a non-finite value.": {
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"category": "Error",
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@ -1584,6 +1585,11 @@
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"category": "Error",
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"code": 4087
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},
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"Property '{0}' does not exist on 'const' enum '{1}'.": {
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"category": "Error",
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"code": 4088,
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"isEarly": true
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},
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"The current host does not support the '{0}' option.": {
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"category": "Error",
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"code": 5001
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@ -0,0 +1,8 @@
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tests/cases/compiler/constEnumBadPropertyNames.ts(2,11): error TS4088: Property 'B' does not exist on 'const' enum 'E'.
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==== tests/cases/compiler/constEnumBadPropertyNames.ts (1 errors) ====
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const enum E { A }
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var x = E["B"]
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~~~
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!!! error TS4088: Property 'B' does not exist on 'const' enum 'E'.
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@ -3,8 +3,8 @@ tests/cases/compiler/constEnumErrors.ts(5,8): error TS2300: Duplicate identifier
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tests/cases/compiler/constEnumErrors.ts(12,9): error TS4083: In 'const' enum declarations member initializer must be constant expression.
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tests/cases/compiler/constEnumErrors.ts(14,9): error TS4083: In 'const' enum declarations member initializer must be constant expression.
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tests/cases/compiler/constEnumErrors.ts(15,10): error TS4083: In 'const' enum declarations member initializer must be constant expression.
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tests/cases/compiler/constEnumErrors.ts(22,13): error TS4085: Index expression arguments in 'const' enums must be of type 'string'.
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tests/cases/compiler/constEnumErrors.ts(24,13): error TS4085: Index expression arguments in 'const' enums must be of type 'string'.
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tests/cases/compiler/constEnumErrors.ts(22,13): error TS4085: A const enum member can only be accessed using a string literal.
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tests/cases/compiler/constEnumErrors.ts(24,13): error TS4085: A const enum member can only be accessed using a string literal.
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tests/cases/compiler/constEnumErrors.ts(26,9): error TS4084: 'const' enums can only be used in property or index access expressions or the right hand side of an import declaration or export assignment.
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tests/cases/compiler/constEnumErrors.ts(27,10): error TS4084: 'const' enums can only be used in property or index access expressions or the right hand side of an import declaration or export assignment.
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tests/cases/compiler/constEnumErrors.ts(32,5): error TS4084: 'const' enums can only be used in property or index access expressions or the right hand side of an import declaration or export assignment.
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@ -47,11 +47,11 @@ tests/cases/compiler/constEnumErrors.ts(42,9): error TS4087: 'const' enum member
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var y0 = E2[1]
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~
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!!! error TS4085: Index expression arguments in 'const' enums must be of type 'string'.
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!!! error TS4085: A const enum member can only be accessed using a string literal.
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var name = "A";
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var y1 = E2[name];
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~~~~
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!!! error TS4085: Index expression arguments in 'const' enums must be of type 'string'.
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!!! error TS4085: A const enum member can only be accessed using a string literal.
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var x = E2;
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~~
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2
tests/cases/compiler/constEnumBadPropertyNames.ts
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2
tests/cases/compiler/constEnumBadPropertyNames.ts
Normal file
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@ -0,0 +1,2 @@
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const enum E { A }
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var x = E["B"]
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