| // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| part of dart2js; |
| |
| const DONT_KNOW_HOW_TO_FIX = ""; |
| |
| /** |
| * The messages in this file should meet the following guide lines: |
| * |
| * 1. The message should start with exactly one of "Error", "Internal error", |
| * "Warning", "Info", or "Hint" followed by a colon. It is crucial to users to |
| * be able to locate errors in the midst of warnings. |
| * TODO(ahe): Remove these prefixes from the error message. |
| * |
| * 2. After the colon, one space and a complete sentence starting with an |
| * uppercase letter, and ending with a period. |
| * |
| * 3. Reserved words and embedded identifiers should be in single quotes, so |
| * prefer double quotes for the complete message. For example, "Error: The |
| * class '#{className}' can't use 'super'." Notice that the word 'class' in the |
| * preceding message is not quoted as it refers to the concept 'class', not the |
| * reserved word. On the other hand, 'super' refers to the reserved word. Do |
| * not quote 'null' and numeric literals. |
| * |
| * 4. Do not try to compose messages, as it can make translating them hard. |
| * |
| * 5. Try to keep the error messages short, but informative. |
| * |
| * 6. Use simple words and terminology, assume the reader of the message |
| * doesn't have an advanced degree in math, and that English is not the |
| * reader's native language. Do not assume any formal computer science |
| * training. For example, do not use Latin abbreviations (prefer "that is" over |
| * "i.e.", and "for example" over "e.g."). Also avoid phrases such as "if and |
| * only if" and "iff", that level of precision is unnecessary. |
| * |
| * 7. Prefer contractions when they are in common use, for example, prefer |
| * "can't" over "cannot". Using "cannot", "must not", "shall not", etc. is |
| * off-putting to people new to programming. |
| * |
| * 8. Use common terminology, preferably from the Dart Language |
| * Specification. This increases the user's chance of finding a good |
| * explanation on the web. |
| * |
| * 9. Do not try to be cute or funny. It is extremely frustrating to work on a |
| * product that crashes with a "tongue-in-cheek" message, especially if you did |
| * not want to use this product to begin with with. |
| * |
| * 10. Do not lie, that is, do not write error messages containing phrases like |
| * "can't happen". If the user ever saw this message, it would be a |
| * lie. Prefer messages like: "Internal error: This function should not be |
| * called when 'x' is null.". |
| * |
| * 11. Prefer to not use imperative tone. That is, the message should not sound |
| * accusing or like it is ordering the user around. The computer should |
| * describe the problem, not criticize for violating the specification. |
| * |
| * Other things to keep in mind: |
| * |
| * An INFO message should always be preceded by a non-INFO message, and the |
| * INFO messages are additional details about the preceding non-INFO |
| * message. For example, consider duplicated elements. First report a WARNING |
| * or ERROR about the duplicated element, and then report an INFO about the |
| * location of the existing element. |
| * |
| * Generally, we want to provide messages that consists of three sentences: |
| * 1. what is wrong, 2. why is it wrong, 3. how do I fix it. However, we |
| * combine the first two in [template] and the last in [howToFix]. |
| */ |
| class MessageKind { |
| /// Should describe what is wrong and why. |
| final String template; |
| |
| /// Should describe how to fix the problem. Elided when using --terse option. |
| final String howToFix; |
| |
| /// Examples will be checked by |
| /// tests/compiler/dart2js/message_kind_test.dart. |
| final List<String> examples; |
| |
| const MessageKind(this.template, {this.howToFix, this.examples}); |
| |
| /// Do not use this. It is here for legacy and debugging. It violates item 4 |
| /// above. |
| static const MessageKind GENERIC = const MessageKind('#{text}'); |
| |
| static const DualKind NOT_ASSIGNABLE = const DualKind( |
| error: const MessageKind( |
| 'Error: "#{fromType}" is not assignable to "#{toType}".'), |
| warning: const MessageKind( |
| 'Warning: "#{fromType}" is not assignable to "#{toType}".')); |
| |
| static const MessageKind VOID_EXPRESSION = const MessageKind( |
| 'Warning: Expression does not yield a value.'); |
| |
| static const MessageKind VOID_VARIABLE = const MessageKind( |
| 'Warning: Variable cannot be of type void.'); |
| |
| static const MessageKind RETURN_VALUE_IN_VOID = const MessageKind( |
| 'Warning: Cannot return value from void function.'); |
| |
| static const MessageKind RETURN_NOTHING = const MessageKind( |
| 'Warning: Value of type "#{returnType}" expected.'); |
| |
| static const MessageKind MISSING_ARGUMENT = const MessageKind( |
| 'Warning: Missing argument of type "#{argumentType}".'); |
| |
| static const MessageKind ADDITIONAL_ARGUMENT = const MessageKind( |
| 'Warning: Additional argument.'); |
| |
| static const MessageKind NAMED_ARGUMENT_NOT_FOUND = const MessageKind( |
| 'Warning: No named argument "#{argumentName}" found on method.'); |
| |
| static const DualKind MEMBER_NOT_FOUND = const DualKind( |
| error: const MessageKind( |
| 'Error: No member named "#{memberName}" in class "#{className}".'), |
| warning: const MessageKind( |
| 'Warning: No member named "#{memberName}" in class "#{className}".')); |
| |
| static const MessageKind METHOD_NOT_FOUND = const MessageKind( |
| 'Warning: No method named "#{memberName}" in class "#{className}".'); |
| |
| static const MessageKind OPERATOR_NOT_FOUND = const MessageKind( |
| 'Warning: No operator "#{memberName}" in class "#{className}".'); |
| |
| static const MessageKind PROPERTY_NOT_FOUND = const MessageKind( |
| 'Warning: No property named "#{memberName}" in class "#{className}".'); |
| |
| static const MessageKind NOT_CALLABLE = const MessageKind( |
| 'Warning: "#{elementName}" is not callable.'); |
| |
| static const DualKind MEMBER_NOT_STATIC = const DualKind( |
| error: const MessageKind( |
| 'Error: "#{className}.#{memberName}" is not static.'), |
| warning: const MessageKind( |
| 'Warning: "#{className}.#{memberName}" is not static.')); |
| |
| static const MessageKind NO_INSTANCE_AVAILABLE = const MessageKind( |
| 'Error: "#{name}" is only available in instance methods.'); |
| |
| static const MessageKind PRIVATE_ACCESS = const MessageKind( |
| 'Warning: "#{name}" is declared private within library ' |
| '"#{libraryName}".'); |
| |
| static const MessageKind THIS_IS_THE_METHOD = const MessageKind( |
| 'Info: This is the method declaration.'); |
| |
| static const MessageKind UNREACHABLE_CODE = const MessageKind( |
| 'Warning: Unreachable code.'); |
| |
| static const MessageKind MISSING_RETURN = const MessageKind( |
| 'Warning: Missing return.'); |
| |
| static const MessageKind MAYBE_MISSING_RETURN = const MessageKind( |
| 'Warning: Not all paths lead to a return or throw statement.'); |
| |
| static const DualKind CANNOT_RESOLVE = const DualKind( |
| error: const MessageKind('Error: Cannot resolve "#{name}".'), |
| warning: const MessageKind('Warning: Cannot resolve "#{name}".')); |
| |
| static const MessageKind CANNOT_RESOLVE_CONSTRUCTOR = const MessageKind( |
| 'Error: Cannot resolve constructor "#{constructorName}".'); |
| |
| static const MessageKind CANNOT_RESOLVE_CONSTRUCTOR_FOR_IMPLICIT = |
| const MessageKind( |
| 'Error: cannot resolve constructor "#{constructorName}" for implicit' |
| 'super call.'); |
| |
| static const MessageKind INVALID_UNNAMED_CONSTRUCTOR_NAME = const MessageKind( |
| 'Error: Unnamed constructor name must be "#{name}".'); |
| |
| static const MessageKind INVALID_CONSTRUCTOR_NAME = const MessageKind( |
| 'Error: Constructor name must start with "#{name}".'); |
| |
| static const DualKind CANNOT_RESOLVE_TYPE = const DualKind( |
| error: const MessageKind('Error: Cannot resolve type "#{typeName}".'), |
| warning: const MessageKind( |
| 'Warning: Cannot resolve type "#{typeName}".')); |
| |
| static const MessageKind DUPLICATE_DEFINITION = const MessageKind( |
| 'Error: Duplicate definition of "#{name}".'); |
| |
| static const MessageKind EXISTING_DEFINITION = const MessageKind( |
| 'Info: Existing definition of "#{name}".'); |
| |
| static const DualKind DUPLICATE_IMPORT = const DualKind( |
| error: const MessageKind('Error: Duplicate import of "#{name}".'), |
| warning: const MessageKind('Warning: Duplicate import of "#{name}".')); |
| |
| static const MessageKind DUPLICATE_EXPORT = const MessageKind( |
| 'Error: Duplicate export of "#{name}".'); |
| |
| static const DualKind NOT_A_TYPE = const DualKind( |
| error: const MessageKind('Error: "#{node}" is not a type.'), |
| warning: const MessageKind('Warning: "#{node}" is not a type.')); |
| |
| static const MessageKind NOT_A_PREFIX = const MessageKind( |
| 'Error: "#{node}" is not a prefix.'); |
| |
| static const DualKind CANNOT_FIND_CONSTRUCTOR = const DualKind( |
| error: const MessageKind( |
| 'Error: Cannot find constructor "#{constructorName}".'), |
| warning: const MessageKind( |
| 'Warning: Cannot find constructor "#{constructorName}".')); |
| |
| static const MessageKind CYCLIC_CLASS_HIERARCHY = const MessageKind( |
| 'Error: "#{className}" creates a cycle in the class hierarchy.'); |
| |
| static const MessageKind INVALID_RECEIVER_IN_INITIALIZER = const MessageKind( |
| 'Error: Field initializer expected.'); |
| |
| static const MessageKind NO_SUPER_IN_STATIC = const MessageKind( |
| 'Error: "super" is only available in instance methods.'); |
| |
| static const MessageKind DUPLICATE_INITIALIZER = const MessageKind( |
| 'Error: Field "#{fieldName}" is initialized more than once.'); |
| |
| static const MessageKind ALREADY_INITIALIZED = const MessageKind( |
| 'Info: "#{fieldName}" was already initialized here.'); |
| |
| static const MessageKind INIT_STATIC_FIELD = const MessageKind( |
| 'Error: Cannot initialize static field "#{fieldName}".'); |
| |
| static const MessageKind NOT_A_FIELD = const MessageKind( |
| 'Error: "#{fieldName}" is not a field.'); |
| |
| static const MessageKind CONSTRUCTOR_CALL_EXPECTED = const MessageKind( |
| 'Error: only call to "this" or "super" constructor allowed.'); |
| |
| static const MessageKind INVALID_FOR_IN = const MessageKind( |
| 'Error: Invalid for-in variable declaration.'); |
| |
| static const MessageKind INVALID_INITIALIZER = const MessageKind( |
| 'Error: Invalid initializer.'); |
| |
| static const MessageKind FUNCTION_WITH_INITIALIZER = const MessageKind( |
| 'Error: Only constructors can have initializers.'); |
| |
| static const MessageKind REDIRECTING_CONSTRUCTOR_CYCLE = const MessageKind( |
| 'Error: Cyclic constructor redirection.'); |
| |
| static const MessageKind REDIRECTING_CONSTRUCTOR_HAS_BODY = const MessageKind( |
| "Error: Redirecting constructor can't have a body."); |
| |
| static const MessageKind CONST_CONSTRUCTOR_HAS_BODY = const MessageKind( |
| "Error: Const constructor or factory can't have a body.", |
| howToFix: "Remove the 'const' keyword or the body", |
| examples: const [""" |
| class C { |
| const C() {} |
| } |
| |
| main() => new C();"""]); |
| |
| static const MessageKind REDIRECTING_CONSTRUCTOR_HAS_INITIALIZER = |
| const MessageKind( |
| 'Error: Redirecting constructor cannot have other initializers.'); |
| |
| static const MessageKind SUPER_INITIALIZER_IN_OBJECT = const MessageKind( |
| 'Error: "Object" cannot have a super initializer.'); |
| |
| static const MessageKind DUPLICATE_SUPER_INITIALIZER = const MessageKind( |
| 'Error: Cannot have more than one super initializer.'); |
| |
| static const DualKind INVALID_ARGUMENTS = const DualKind( |
| error: const MessageKind( |
| 'Error: Arguments do not match the expected parameters of ' |
| '"#{methodName}".'), |
| warning: const MessageKind( |
| 'Warning: Arguments do not match the expected parameters of ' |
| '"#{methodName}".')); |
| |
| static const MessageKind NO_MATCHING_CONSTRUCTOR = const MessageKind( |
| 'Error: "super" call arguments and constructor parameters do not match.'); |
| |
| static const MessageKind NO_MATCHING_CONSTRUCTOR_FOR_IMPLICIT = |
| const MessageKind( |
| 'Error: Implicit "super" call arguments and constructor parameters ' |
| 'do not match.'); |
| |
| static const MessageKind CONST_CALLS_NON_CONST = const MessageKind( |
| 'Error: "const" constructor cannot call a non-const constructor.'); |
| |
| static const MessageKind CONST_CONSTRUCTOR_WITH_NONFINAL_FIELDS = |
| const MessageKind( |
| "Error: Can't declare constructor 'const' on class #{className} " |
| "because the class contains non-final instance fields.", |
| howToFix: "Try making all fields final.", |
| examples: const [""" |
| class C { |
| // 'a' must be declared final to allow for the const constructor. |
| var a; |
| const C(this.a); |
| } |
| |
| main() => new C(0);"""]); |
| |
| static const MessageKind CONST_CONSTRUCTOR_WITH_NONFINAL_FIELDS_FIELD = |
| const MessageKind('Info: This non-final field prevents using const ' |
| 'constructors.'); |
| |
| static const MessageKind CONST_CONSTRUCTOR_WITH_NONFINAL_FIELDS_CONSTRUCTOR = |
| const MessageKind('Info: This const constructor is not allowed due to ' |
| 'non-final fields.'); |
| |
| |
| static const MessageKind INITIALIZING_FORMAL_NOT_ALLOWED = const MessageKind( |
| 'Error: Initializing formal parameter only allowed in generative ' |
| 'constructor.'); |
| |
| static const MessageKind INVALID_PARAMETER = const MessageKind( |
| 'Error: Cannot resolve parameter.'); |
| |
| static const MessageKind NOT_INSTANCE_FIELD = const MessageKind( |
| 'Error: "#{fieldName}" is not an instance field.'); |
| |
| static const MessageKind NO_CATCH_NOR_FINALLY = const MessageKind( |
| 'Error: Expected "catch" or "finally".'); |
| |
| static const MessageKind EMPTY_CATCH_DECLARATION = const MessageKind( |
| 'Error: Expected an identifier in catch declaration.'); |
| |
| static const MessageKind EXTRA_CATCH_DECLARATION = const MessageKind( |
| 'Error: Extra parameter in catch declaration.'); |
| |
| static const MessageKind PARAMETER_WITH_TYPE_IN_CATCH = const MessageKind( |
| 'Error: Cannot use type annotations in catch.'); |
| |
| static const MessageKind PARAMETER_WITH_MODIFIER_IN_CATCH = const MessageKind( |
| 'Error: Cannot use modifiers in catch.'); |
| |
| static const MessageKind OPTIONAL_PARAMETER_IN_CATCH = const MessageKind( |
| 'Error: Cannot use optional parameters in catch.'); |
| |
| static const MessageKind THROW_WITHOUT_EXPRESSION = const MessageKind( |
| 'Error: Cannot use re-throw outside of catch block ' |
| '(expression expected after "throw").'); |
| |
| static const MessageKind UNBOUND_LABEL = const MessageKind( |
| 'Error: Cannot resolve label "#{labelName}".'); |
| |
| static const MessageKind NO_BREAK_TARGET = const MessageKind( |
| 'Error: "break" statement not inside switch or loop.'); |
| |
| static const MessageKind NO_CONTINUE_TARGET = const MessageKind( |
| 'Error: "continue" statement not inside loop.'); |
| |
| static const MessageKind EXISTING_LABEL = const MessageKind( |
| 'Info: Original declaration of duplicate label "#{labelName}".'); |
| |
| static const DualKind DUPLICATE_LABEL = const DualKind( |
| error: const MessageKind( |
| 'Error: Duplicate declaration of label "#{labelName}".'), |
| warning: const MessageKind( |
| 'Warning: Duplicate declaration of label "#{labelName}".')); |
| |
| static const MessageKind UNUSED_LABEL = const MessageKind( |
| 'Warning: Unused label "#{labelName}".'); |
| |
| static const MessageKind INVALID_CONTINUE = const MessageKind( |
| 'Error: Target of continue is not a loop or switch case.'); |
| |
| static const MessageKind INVALID_BREAK = const MessageKind( |
| 'Error: Target of break is not a statement.'); |
| |
| static const MessageKind DUPLICATE_TYPE_VARIABLE_NAME = const MessageKind( |
| 'Error: Type variable "#{typeVariableName}" already declared.'); |
| |
| static const DualKind TYPE_VARIABLE_WITHIN_STATIC_MEMBER = const DualKind( |
| error: const MessageKind( |
| 'Error: Cannot refer to type variable "#{typeVariableName}" ' |
| 'within a static member.'), |
| warning: const MessageKind( |
| 'Warning: Cannot refer to type variable "#{typeVariableName}" ' |
| 'within a static member.')); |
| |
| static const MessageKind TYPE_VARIABLE_IN_CONSTANT = const MessageKind( |
| 'Error: Cannot refer to type variable in constant.'); |
| |
| static const MessageKind INVALID_TYPE_VARIABLE_BOUND = const MessageKind( |
| "Warning: '#{typeArgument}' is not a subtype of bound '#{bound}' for " |
| "type variable '#{typeVariable}' of type '#{thisType}'.", |
| howToFix: "Try to change or remove the type argument.", |
| examples: const [""" |
| class C<T extends num> {} |
| |
| // 'String' is not a valid instantiation of T with bound num.'. |
| main() => new C<String>(); |
| """]); |
| |
| static const MessageKind INVALID_USE_OF_SUPER = const MessageKind( |
| 'Error: "super" not allowed here.'); |
| |
| static const MessageKind INVALID_CASE_DEFAULT = const MessageKind( |
| 'Error: "default" only allowed on last case of a switch.'); |
| |
| static const MessageKind SWITCH_CASE_TYPES_NOT_EQUAL = const MessageKind( |
| 'Error: "case" expressions do not all have type "#{type}".'); |
| |
| static const MessageKind SWITCH_CASE_TYPES_NOT_EQUAL_CASE = const MessageKind( |
| 'Info: "case" expression of type "#{type}".'); |
| |
| static const MessageKind SWITCH_CASE_VALUE_OVERRIDES_EQUALS = |
| const MessageKind( |
| 'Error: "case" expression value overrides "operator==".'); |
| |
| static const MessageKind INVALID_ARGUMENT_AFTER_NAMED = const MessageKind( |
| 'Error: Unnamed argument after named argument.'); |
| |
| static const MessageKind NOT_A_COMPILE_TIME_CONSTANT = const MessageKind( |
| 'Error: Not a compile-time constant.'); |
| |
| static const MessageKind CYCLIC_COMPILE_TIME_CONSTANTS = const MessageKind( |
| 'Error: Cycle in the compile-time constant computation.'); |
| |
| static const MessageKind CONSTRUCTOR_IS_NOT_CONST = const MessageKind( |
| 'Error: Constructor is not a "const" constructor.'); |
| |
| static const MessageKind KEY_NOT_A_STRING_LITERAL = const MessageKind( |
| 'Error: Map-literal key not a string literal.'); |
| |
| static const DualKind NO_SUCH_LIBRARY_MEMBER = const DualKind( |
| error: const MessageKind( |
| 'Error: "#{libraryName}" has no member named "#{memberName}".'), |
| warning: const MessageKind( |
| 'Warning: "#{libraryName}" has no member named "#{memberName}".')); |
| |
| static const MessageKind CANNOT_INSTANTIATE_TYPEDEF = const MessageKind( |
| 'Error: Cannot instantiate typedef "#{typedefName}".'); |
| |
| static const MessageKind TYPEDEF_FORMAL_WITH_DEFAULT = const MessageKind( |
| "Error: A parameter of a typedef can't specify a default value.", |
| howToFix: "Remove the default value.", |
| examples: const [""" |
| typedef void F([int arg = 0]); |
| |
| main() { |
| F f; |
| }""", """ |
| typedef void F({int arg: 0}); |
| |
| main() { |
| F f; |
| }"""]); |
| |
| static const MessageKind CANNOT_INSTANTIATE_TYPE_VARIABLE = const MessageKind( |
| 'Error: Cannot instantiate type variable "#{typeVariableName}".'); |
| |
| static const MessageKind CYCLIC_TYPE_VARIABLE = const MessageKind( |
| 'Warning: Type variable "#{typeVariableName}" is a supertype of itself.'); |
| |
| static const MessageKind CLASS_NAME_EXPECTED = const MessageKind( |
| 'Error: Class name expected.'); |
| |
| static const MessageKind CANNOT_EXTEND = const MessageKind( |
| 'Error: "#{type}" cannot be extended.'); |
| |
| static const MessageKind CANNOT_IMPLEMENT = const MessageKind( |
| 'Error: "#{type}" cannot be implemented.'); |
| |
| static const MessageKind DUPLICATE_EXTENDS_IMPLEMENTS = const MessageKind( |
| 'Error: "#{type}" can not be both extended and implemented.'); |
| |
| static const MessageKind DUPLICATE_IMPLEMENTS = const MessageKind( |
| 'Error: "#{type}" must not occur more than once ' |
| 'in the implements clause.'); |
| |
| static const MessageKind ILLEGAL_SUPER_SEND = const MessageKind( |
| 'Error: "#{name}" cannot be called on super.'); |
| |
| static const DualKind NO_SUCH_SUPER_MEMBER = const DualKind( |
| error: const MessageKind( |
| 'Error: Cannot resolve "#{memberName}" in a superclass of ' |
| '"#{className}".'), |
| warning: const MessageKind( |
| 'Warning: Cannot resolve "#{memberName}" in a superclass of ' |
| '"#{className}".')); |
| |
| static const DualKind ADDITIONAL_TYPE_ARGUMENT = const DualKind( |
| error: const MessageKind('Error: Additional type argument.'), |
| warning: const MessageKind('Warning: Additional type argument.')); |
| |
| static const DualKind MISSING_TYPE_ARGUMENT = const DualKind( |
| error: const MessageKind('Error: Missing type argument.'), |
| warning: const MessageKind('Warning: Missing type argument.')); |
| |
| // TODO(johnniwinther): Use ADDITIONAL_TYPE_ARGUMENT or MISSING_TYPE_ARGUMENT |
| // instead. |
| static const MessageKind TYPE_ARGUMENT_COUNT_MISMATCH = const MessageKind( |
| 'Error: Incorrect number of type arguments on "#{type}".'); |
| |
| static const MessageKind GETTER_MISMATCH = const MessageKind( |
| 'Error: Setter disagrees on: "#{modifiers}".'); |
| |
| static const MessageKind SETTER_MISMATCH = const MessageKind( |
| 'Error: Getter disagrees on: "#{modifiers}".'); |
| |
| static const MessageKind ILLEGAL_SETTER_FORMALS = const MessageKind( |
| 'Error: A setter must have exactly one argument.'); |
| |
| static const MessageKind NO_STATIC_OVERRIDE = const MessageKind( |
| 'Error: Static member cannot override instance member "#{memberName}" of ' |
| '"#{className}".'); |
| |
| static const MessageKind NO_STATIC_OVERRIDE_CONT = const MessageKind( |
| 'Info: This is the instance member that cannot be overridden ' |
| 'by a static member.'); |
| |
| static const MessageKind CANNOT_OVERRIDE_FIELD_WITH_METHOD = |
| const MessageKind( |
| 'Error: Method cannot override field "#{memberName}" of ' |
| '"#{className}".'); |
| |
| static const MessageKind CANNOT_OVERRIDE_FIELD_WITH_METHOD_CONT = |
| const MessageKind( |
| 'Info: This is the field that cannot be overridden by a method.'); |
| |
| static const MessageKind CANNOT_OVERRIDE_METHOD_WITH_FIELD = |
| const MessageKind( |
| 'Error: Field cannot override method "#{memberName}" of ' |
| '"#{className}".'); |
| |
| static const MessageKind CANNOT_OVERRIDE_METHOD_WITH_FIELD_CONT = |
| const MessageKind( |
| 'Info: This is the method that cannot be overridden by a field.'); |
| |
| static const MessageKind BAD_ARITY_OVERRIDE = const MessageKind( |
| 'Error: Cannot override method "#{memberName}" in "#{className}"; ' |
| 'the parameters do not match.'); |
| |
| static const MessageKind BAD_ARITY_OVERRIDE_CONT = const MessageKind( |
| 'Info: This is the method whose parameters do not match.'); |
| |
| static const MessageKind MISSING_FORMALS = const MessageKind( |
| 'Error: Formal parameters are missing.'); |
| |
| static const MessageKind EXTRA_FORMALS = const MessageKind( |
| 'Error: Formal parameters are not allowed here.'); |
| |
| static const MessageKind UNARY_OPERATOR_BAD_ARITY = const MessageKind( |
| 'Error: Operator "#{operatorName}" must have no parameters.'); |
| |
| static const MessageKind MINUS_OPERATOR_BAD_ARITY = const MessageKind( |
| 'Error: Operator "-" must have 0 or 1 parameters.'); |
| |
| static const MessageKind BINARY_OPERATOR_BAD_ARITY = const MessageKind( |
| 'Error: Operator "#{operatorName}" must have exactly 1 parameter.'); |
| |
| static const MessageKind TERNARY_OPERATOR_BAD_ARITY = const MessageKind( |
| 'Error: Operator "#{operatorName}" must have exactly 2 parameters.'); |
| |
| static const MessageKind OPERATOR_OPTIONAL_PARAMETERS = const MessageKind( |
| 'Error: Operator "#{operatorName}" cannot have optional parameters.'); |
| |
| static const MessageKind OPERATOR_NAMED_PARAMETERS = const MessageKind( |
| 'Error: Operator "#{operatorName}" cannot have named parameters.'); |
| |
| static const MessageKind CONSTRUCTOR_WITH_RETURN_TYPE = const MessageKind( |
| 'Error: Cannot have return type for constructor.'); |
| |
| static const MessageKind CANNOT_RETURN_FROM_CONSTRUCTOR = const MessageKind( |
| "Error: Constructors can't return values.", |
| howToFix: "Remove the return statement or use a factory constructor.", |
| examples: const [""" |
| class C { |
| C() { |
| return 1; |
| } |
| } |
| |
| main() => new C();"""]); |
| |
| static const MessageKind ILLEGAL_FINAL_METHOD_MODIFIER = const MessageKind( |
| 'Error: Cannot have final modifier on method.'); |
| |
| static const MessageKind ILLEGAL_CONSTRUCTOR_MODIFIERS = const MessageKind( |
| 'Error: Illegal constructor modifiers: "#{modifiers}".'); |
| |
| static const MessageKind ILLEGAL_MIXIN_APPLICATION_MODIFIERS = |
| const MessageKind( |
| 'Error: Illegal mixin application modifiers: "#{modifiers}".'); |
| |
| static const MessageKind ILLEGAL_MIXIN_SUPERCLASS = const MessageKind( |
| 'Error: Class used as mixin must have Object as superclass.'); |
| |
| static const MessageKind ILLEGAL_MIXIN_OBJECT = const MessageKind( |
| 'Error: Cannot use Object as mixin.'); |
| |
| static const MessageKind ILLEGAL_MIXIN_CONSTRUCTOR = const MessageKind( |
| 'Error: Class used as mixin cannot have non-factory constructor.'); |
| |
| static const MessageKind ILLEGAL_MIXIN_CYCLE = const MessageKind( |
| 'Error: Class used as mixin introduces mixin cycle: ' |
| '"#{mixinName1}" <-> "#{mixinName2}".'); |
| |
| static const MessageKind ILLEGAL_MIXIN_WITH_SUPER = const MessageKind( |
| 'Error: Cannot use class "#{className}" as a mixin because it uses ' |
| '"super".'); |
| |
| static const MessageKind ILLEGAL_MIXIN_SUPER_USE = const MessageKind( |
| 'Info: Use of "super" in class used as mixin.'); |
| |
| static const MessageKind PARAMETER_NAME_EXPECTED = const MessageKind( |
| 'Error: parameter name expected.'); |
| |
| static const DualKind CANNOT_RESOLVE_GETTER = const DualKind( |
| error: const MessageKind('Error: Cannot resolve getter.'), |
| warning: const MessageKind('Warning: Cannot resolve getter.')); |
| |
| static const DualKind CANNOT_RESOLVE_SETTER = const DualKind( |
| error: const MessageKind('Error: Cannot resolve setter.'), |
| warning: const MessageKind('Warning: Cannot resolve setter.')); |
| |
| static const MessageKind VOID_NOT_ALLOWED = const MessageKind( |
| "Error: Type 'void' can't be used here because it isn't a return type.", |
| howToFix: "Try removing 'void' keyword or replace it with 'var', 'final'," |
| " or a type.", |
| examples: const [ |
| "void x; main() {}", |
| "foo(void x) {} main() { foo(null); }", |
| ]); |
| |
| static const MessageKind BEFORE_TOP_LEVEL = const MessageKind( |
| 'Error: Part header must come before top-level definitions.'); |
| |
| static const MessageKind LIBRARY_NAME_MISMATCH = const MessageKind( |
| 'Warning: Expected part of library name "#{libraryName}".'); |
| |
| static const MessageKind MISSING_PART_OF_TAG = const MessageKind( |
| 'Error: This file has no part-of tag, but it is being used as a part.'); |
| |
| static const MessageKind DUPLICATED_PART_OF = const MessageKind( |
| 'Error: Duplicated part-of directive.'); |
| |
| static const MessageKind ILLEGAL_DIRECTIVE = const MessageKind( |
| 'Error: Directive not allowed here.'); |
| |
| static const MessageKind DUPLICATED_LIBRARY_NAME = const MessageKind( |
| 'Warning: Duplicated library name "#{libraryName}".'); |
| |
| // This is used as an exception. |
| static const MessageKind INVALID_SOURCE_FILE_LOCATION = const MessageKind(''' |
| Invalid offset (#{offset}) in source map. |
| File: #{fileName} |
| Length: #{length}'''); |
| |
| static const MessageKind TOP_LEVEL_VARIABLE_DECLARED_STATIC = |
| const MessageKind( |
| 'Error: Top-level variable cannot be declared static.'); |
| |
| static const MessageKind REFERENCE_IN_INITIALIZATION = const MessageKind( |
| "Error: Variable '#{variableName}' is referenced during its " |
| "initialization.", |
| howToFix: "If you are trying to reference a shadowed variable, rename" |
| " one of the variables.", |
| examples: const [""" |
| foo(t) { |
| var t = t; |
| return t; |
| } |
| |
| main() => foo(1); |
| """]); |
| |
| |
| static const MessageKind WRONG_NUMBER_OF_ARGUMENTS_FOR_ASSERT = |
| const MessageKind( |
| 'Error: Wrong number of arguments to assert. Should be 1, but given ' |
| '#{argumentCount}.'); |
| |
| static const MessageKind ASSERT_IS_GIVEN_NAMED_ARGUMENTS = const MessageKind( |
| 'Error: "assert" takes no named arguments, but given #{argumentCount}.'); |
| |
| static const MessageKind FACTORY_REDIRECTION_IN_NON_FACTORY = |
| const MessageKind( |
| 'Error: Factory redirection only allowed in factories.'); |
| |
| static const MessageKind MISSING_FACTORY_KEYWORD = const MessageKind( |
| 'Hint: Did you forget a factory keyword here?'); |
| |
| static const MessageKind DEFERRED_LIBRARY_NAME_MISMATCH = |
| const MessageKind( |
| 'Error: Library name mismatch "#{expectedName}" != "#{actualName}".'); |
| |
| static const MessageKind ILLEGAL_STATIC = const MessageKind( |
| 'Error: Modifier static is only allowed on functions declared in ' |
| 'a class.'); |
| |
| static const MessageKind STATIC_FUNCTION_BLOAT = const MessageKind( |
| 'Hint: Using "#{class}.#{name}" may result in larger output.'); |
| |
| static const MessageKind NON_CONST_BLOAT = const MessageKind(''' |
| Hint: Using "new #{name}" may result in larger output. |
| Use "const #{name}" if possible.'''); |
| |
| static const MessageKind STRING_EXPECTED = const MessageKind( |
| 'Error: Expected a "String", but got an instance of "#{type}".'); |
| |
| static const MessageKind PRIVATE_IDENTIFIER = const MessageKind( |
| 'Error: "#{value}" is not a valid Symbol name because it starts with ' |
| '"_".'); |
| |
| static const MessageKind UNSUPPORTED_LITERAL_SYMBOL = const MessageKind( |
| 'Internal Error: Symbol literal "##{value}" is currently unsupported.'); |
| |
| static const MessageKind INVALID_SYMBOL = const MessageKind(''' |
| Error: "#{value}" is not a valid Symbol name because is not: |
| * an empty String, |
| * a user defined operator, |
| * a qualified non-private identifier optionally followed by "=", or |
| * a qualified non-private identifier followed by "." and a user-defined ''' |
| 'operator.'); |
| |
| static const MessageKind AMBIGUOUS_REEXPORT = const MessageKind( |
| 'Info: "#{element}" is (re)exported by multiple libraries.'); |
| |
| static const MessageKind AMBIGUOUS_LOCATION = const MessageKind( |
| 'Info: "#{element}" is defined here.'); |
| |
| static const MessageKind IMPORTED_HERE = const MessageKind( |
| 'Info: "#{element}" is imported here.'); |
| |
| static const MessageKind OVERRIDE_EQUALS_NOT_HASH_CODE = const MessageKind( |
| 'Hint: The class "#{class}" overrides "operator==", ' |
| 'but not "get hashCode".'); |
| |
| static const MessageKind PACKAGE_ROOT_NOT_SET = const MessageKind( |
| 'Error: Cannot resolve "#{uri}". Package root has not been set.'); |
| |
| static const MessageKind INTERNAL_LIBRARY_FROM = const MessageKind( |
| 'Error: Internal library "#{resolvedUri}" is not accessible from ' |
| '"#{importingUri}".'); |
| |
| static const MessageKind INTERNAL_LIBRARY = const MessageKind( |
| 'Error: Internal library "#{resolvedUri}" is not accessible.'); |
| |
| static const MessageKind LIBRARY_NOT_FOUND = const MessageKind( |
| 'Error: Library not found "#{resolvedUri}".'); |
| |
| static const MessageKind UNSUPPORTED_EQ_EQ_EQ = const MessageKind( |
| 'Error: "===" is not an operator. ' |
| 'Did you mean "#{lhs} == #{rhs}" or "identical(#{lhs}, #{rhs})"?'); |
| |
| static const MessageKind UNSUPPORTED_BANG_EQ_EQ = const MessageKind( |
| 'Error: "!==" is not an operator. ' |
| 'Did you mean "#{lhs} != #{rhs}" or "!identical(#{lhs}, #{rhs})"?'); |
| |
| static const MessageKind UNSUPPORTED_THROW_WITHOUT_EXP = const MessageKind( |
| 'Error: No expression after "throw". ' |
| 'Did you mean "rethrow"?'); |
| |
| static const MessageKind MIRRORS_EXPECTED_STRING = const MessageKind( |
| "Hint: Can't use '#{name}' here because it's an instance of '#{type}' " |
| "and a 'String' value is expected.", |
| howToFix: "Did you forget to add quotes?", |
| examples: const [ |
| """ |
| // 'Foo' is a type literal, not a string. |
| @MirrorsUsed(symbols: const [Foo]) |
| import 'dart:mirrors'; |
| |
| class Foo {} |
| |
| main() {} |
| """]); |
| |
| static const MessageKind MIRRORS_EXPECTED_STRING_OR_TYPE = const MessageKind( |
| "Hint: Can't use '#{name}' here because it's an instance of '#{type}' " |
| "and a 'String' or 'Type' value is expected.", |
| howToFix: "Did you forget to add quotes?", |
| examples: const [ |
| """ |
| // 'main' is a method, not a class. |
| @MirrorsUsed(targets: const [main]) |
| import 'dart:mirrors'; |
| |
| main() {} |
| """]); |
| |
| static const MessageKind MIRRORS_EXPECTED_STRING_OR_LIST = const MessageKind( |
| "Hint: Can't use '#{name}' here because it's an instance of '#{type}' " |
| "and a 'String' or 'List' value is expected.", |
| howToFix: "Did you forget to add quotes?", |
| examples: const [ |
| """ |
| // 'Foo' is not a string. |
| @MirrorsUsed(symbols: Foo) |
| import 'dart:mirrors'; |
| |
| class Foo {} |
| |
| main() {} |
| """]); |
| |
| static const MessageKind MIRRORS_EXPECTED_STRING_TYPE_OR_LIST = |
| const MessageKind( |
| "Hint: Can't use '#{name}' here because it's an instance of '#{type}' " |
| "but a 'String', 'Type', or 'List' value is expected.", |
| howToFix: "Did you forget to add quotes?", |
| examples: const [ |
| """ |
| // '1' is not a string. |
| @MirrorsUsed(targets: 1) |
| import 'dart:mirrors'; |
| |
| main() {} |
| """]); |
| |
| static const MessageKind MIRRORS_CANNOT_RESOLVE_IN_CURRENT_LIBRARY = |
| const MessageKind( |
| "Hint: Can't find '#{name}' in the current library.", |
| // TODO(ahe): The closest identifiers in edit distance would be nice. |
| howToFix: "Did you forget to add an import?", |
| examples: const [ |
| """ |
| // 'window' is not in scope because dart:html isn't imported. |
| @MirrorsUsed(targets: 'window') |
| import 'dart:mirrors'; |
| |
| main() {} |
| """]); |
| |
| static const MessageKind MIRRORS_CANNOT_RESOLVE_IN_LIBRARY = |
| const MessageKind( |
| "Hint: Can't find '#{name}' in the library '#{library}'.", |
| // TODO(ahe): The closest identifiers in edit distance would be nice. |
| howToFix: "Is '#{name}' spelled right?", |
| examples: const [ |
| """ |
| // 'List' is misspelled. |
| @MirrorsUsed(targets: 'dart.core.Lsit') |
| import 'dart:mirrors'; |
| |
| main() {} |
| """]); |
| |
| static const MessageKind MIRRORS_CANNOT_FIND_IN_ELEMENT = |
| const MessageKind( |
| "Hint: Can't find '#{name}' in '#{element}'.", |
| // TODO(ahe): The closest identifiers in edit distance would be nice. |
| howToFix: "Is '#{name}' spelled right?", |
| examples: const [ |
| """ |
| // 'addAll' is misspelled. |
| @MirrorsUsed(targets: 'dart.core.List.addAl') |
| import 'dart:mirrors'; |
| |
| main() {} |
| """]); |
| |
| static const MessageKind READ_SCRIPT_ERROR = const MessageKind( |
| "Error: Can't read '#{uri}' (#{exception}).", |
| // Don't know how to fix since the underlying error is unknown. |
| howToFix: DONT_KNOW_HOW_TO_FIX, |
| examples: const [ |
| """ |
| // 'foo.dart' does not exist. |
| import 'foo.dart'; |
| |
| main() {} |
| """]); |
| |
| static const MessageKind EXTRANEOUS_MODIFIER = const MessageKind( |
| "Error: Can't have modifier '#{modifier}' here.", |
| howToFix: "Try removing '#{modifier}'.", |
| examples: const [ |
| "var String foo; main(){}", |
| // "var get foo; main(){}", |
| "var set foo; main(){}", |
| "var final foo; main(){}", |
| "var var foo; main(){}", |
| "var const foo; main(){}", |
| "var abstract foo; main(){}", |
| "var static foo; main(){}", |
| "var external foo; main(){}", |
| "get var foo; main(){}", |
| "set var foo; main(){}", |
| "final var foo; main(){}", |
| "var var foo; main(){}", |
| "const var foo; main(){}", |
| "abstract var foo; main(){}", |
| "static var foo; main(){}", |
| "external var foo; main(){}"]); |
| |
| static const MessageKind EXTRANEOUS_MODIFIER_REPLACE = const MessageKind( |
| "Error: Can't have modifier '#{modifier}' here.", |
| howToFix: "Try replacing modifier '#{modifier}' with 'var', 'final'," |
| " or a type.", |
| examples: const [ |
| // "get foo; main(){}", |
| "set foo; main(){}", |
| "abstract foo; main(){}", |
| "static foo; main(){}", |
| "external foo; main(){}"]); |
| |
| static const MessageKind BODY_EXPECTED = const MessageKind( |
| "Error: Expected a function body or '=>'.", |
| // TODO(ahe): In some scenarios, we can suggest removing the 'static' |
| // keyword. |
| howToFix: "Try adding {}.", |
| examples: const [ |
| "main();"]); |
| |
| static const MessageKind COMPILER_CRASHED = const MessageKind( |
| 'Error: The compiler crashed when compiling this element.'); |
| |
| static const MessageKind PLEASE_REPORT_THE_CRASH = const MessageKind(''' |
| The compiler is broken. |
| |
| When compiling the above element, the compiler crashed. It is not |
| possible to tell if this is caused by a problem in your program or |
| not. Regardless, the compiler should not crash. |
| |
| The Dart team would greatly appreciate if you would take a moment to |
| report this problem at http://dartbug.com/new. |
| |
| Please include the following information: |
| |
| * the name and version of your operating system, |
| |
| * the Dart SDK build number (#{buildId}), and |
| |
| * the entire message you see here (including the full stack trace |
| below as well as the source location above). |
| '''); |
| |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| // Patch errors start. |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| static const MessageKind PATCH_RETURN_TYPE_MISMATCH = const MessageKind( |
| 'Error: Patch return type "#{patchReturnType}" does not match ' |
| '"#{originReturnType}" on origin method "#{methodName}".'); |
| |
| static const MessageKind PATCH_REQUIRED_PARAMETER_COUNT_MISMATCH = |
| const MessageKind( |
| 'Error: Required parameter count of patch method ' |
| '(#{patchParameterCount}) does not match parameter count on origin ' |
| 'method "#{methodName}" (#{originParameterCount}).'); |
| |
| static const MessageKind PATCH_OPTIONAL_PARAMETER_COUNT_MISMATCH = |
| const MessageKind( |
| 'Error: Optional parameter count of patch method ' |
| '(#{patchParameterCount}) does not match parameter count on origin ' |
| 'method "#{methodName}" (#{originParameterCount}).'); |
| |
| static const MessageKind PATCH_OPTIONAL_PARAMETER_NAMED_MISMATCH = |
| const MessageKind( |
| 'Error: Optional parameters of origin and patch method ' |
| '"#{methodName}" must both be either named or positional.'); |
| |
| static const MessageKind PATCH_PARAMETER_MISMATCH = const MessageKind( |
| 'Error: Patch method parameter "#{patchParameter}" does not match ' |
| '"#{originParameter}" on origin method "#{methodName}".'); |
| |
| static const MessageKind PATCH_PARAMETER_TYPE_MISMATCH = const MessageKind( |
| 'Error: Patch method parameter "#{parameterName}" type ' |
| '"#{patchParameterType}" does not match "#{originParameterType}" on ' |
| 'origin method "#{methodName}".'); |
| |
| static const MessageKind PATCH_EXTERNAL_WITHOUT_IMPLEMENTATION = |
| const MessageKind('Error: External method without an implementation.'); |
| |
| static const MessageKind PATCH_POINT_TO_FUNCTION = const MessageKind( |
| 'Info: This is the function patch "#{functionName}".'); |
| |
| static const MessageKind PATCH_POINT_TO_CLASS = const MessageKind( |
| 'Info: This is the class patch "#{className}".'); |
| |
| static const MessageKind PATCH_POINT_TO_GETTER = const MessageKind( |
| 'Info: This is the getter patch "#{getterName}".'); |
| |
| static const MessageKind PATCH_POINT_TO_SETTER = const MessageKind( |
| 'Info: This is the setter patch "#{setterName}".'); |
| |
| static const MessageKind PATCH_POINT_TO_CONSTRUCTOR = const MessageKind( |
| 'Info: This is the constructor patch "#{constructorName}".'); |
| |
| static const MessageKind PATCH_POINT_TO_PARAMETER = const MessageKind( |
| 'Info: This is the patch parameter "#{parameterName}".'); |
| |
| static const MessageKind PATCH_NON_EXISTING = const MessageKind( |
| 'Error: Origin does not exist for patch "#{name}".'); |
| |
| // TODO(ahe): Eventually, this error should be removed as it will be handled |
| // by the regular parser. |
| static const MessageKind PATCH_NONPATCHABLE = const MessageKind( |
| 'Error: Only classes and functions can be patched.'); |
| |
| static const MessageKind PATCH_NON_EXTERNAL = const MessageKind( |
| 'Error: Only external functions can be patched.'); |
| |
| static const MessageKind PATCH_NON_CLASS = const MessageKind( |
| 'Error: Patching non-class with class patch "#{className}".'); |
| |
| static const MessageKind PATCH_NON_GETTER = const MessageKind( |
| 'Error: Cannot patch non-getter "#{name}" with getter patch.'); |
| |
| static const MessageKind PATCH_NO_GETTER = const MessageKind( |
| 'Error: No getter found for getter patch "#{getterName}".'); |
| |
| static const MessageKind PATCH_NON_SETTER = const MessageKind( |
| 'Error: Cannot patch non-setter "#{name}" with setter patch.'); |
| |
| static const MessageKind PATCH_NO_SETTER = const MessageKind( |
| 'Error: No setter found for setter patch "#{setterName}".'); |
| |
| static const MessageKind PATCH_NON_CONSTRUCTOR = const MessageKind( |
| 'Error: Cannot patch non-constructor with constructor patch ' |
| '"#{constructorName}".'); |
| |
| static const MessageKind PATCH_NON_FUNCTION = const MessageKind( |
| 'Error: Cannot patch non-function with function patch ' |
| '"#{functionName}".'); |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| // Patch errors end. |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| toString() => template; |
| |
| Message message([Map arguments = const {}, bool terse = false]) { |
| return new Message(this, arguments, terse); |
| } |
| |
| CompilationError error([Map arguments = const {}, bool terse = false]) { |
| return new CompilationError(this, arguments, terse); |
| } |
| |
| bool get hasHowToFix => howToFix != null && howToFix != DONT_KNOW_HOW_TO_FIX; |
| } |
| |
| class DualKind { |
| final MessageKind error; |
| final MessageKind warning; |
| |
| const DualKind({this.error, this.warning}); |
| } |
| |
| class Message { |
| final MessageKind kind; |
| final Map arguments; |
| final bool terse; |
| String message; |
| |
| Message(this.kind, this.arguments, this.terse) { |
| assert(() { computeMessage(); return true; }); |
| } |
| |
| String computeMessage() { |
| if (message == null) { |
| message = kind.template; |
| arguments.forEach((key, value) { |
| String string = slowToString(value); |
| message = message.replaceAll('#{${key}}', string); |
| }); |
| assert(invariant( |
| CURRENT_ELEMENT_SPANNABLE, |
| !message.contains(new RegExp(r'#\{.+\}')), |
| message: 'Missing arguments in error message: "$message"')); |
| if (!terse && kind.hasHowToFix) { |
| String howToFix = kind.howToFix; |
| arguments.forEach((key, value) { |
| String string = slowToString(value); |
| howToFix = howToFix.replaceAll('#{${key}}', string); |
| }); |
| message = '$message\n$howToFix'; |
| } |
| } |
| return message; |
| } |
| |
| String toString() { |
| return computeMessage(); |
| } |
| |
| bool operator==(other) { |
| if (other is !Message) return false; |
| return (kind == other.kind) && (toString() == other.toString()); |
| } |
| |
| int get hashCode => throw new UnsupportedError('Message.hashCode'); |
| |
| String slowToString(object) { |
| if (object is SourceString) { |
| return object.slowToString(); |
| } else { |
| return object.toString(); |
| } |
| } |
| } |
| |
| class Diagnostic { |
| final Message message; |
| Diagnostic(MessageKind kind, Map arguments, bool terse) |
| : message = new Message(kind, arguments, terse); |
| String toString() => message.toString(); |
| } |
| |
| class TypeWarning extends Diagnostic { |
| TypeWarning(MessageKind kind, Map arguments, bool terse) |
| : super(kind, arguments, terse); |
| } |
| |
| class ResolutionWarning extends Diagnostic { |
| ResolutionWarning(MessageKind kind, Map arguments, bool terse) |
| : super(kind, arguments, terse); |
| } |
| |
| class CompileTimeConstantError extends Diagnostic { |
| CompileTimeConstantError(MessageKind kind, Map arguments, bool terse) |
| : super(kind, arguments, terse); |
| } |
| |
| class CompilationError extends Diagnostic { |
| CompilationError(MessageKind kind, Map arguments, bool terse) |
| : super(kind, arguments, terse); |
| } |