+ # The level of this error

+ attr_reader :level

+

+ def initialize(message, location, level)

+ @level = level

+ "#<Prism::ParseError @message=#{@message.inspect} @location=#{@location.inspect} @level=#{@level}>"

+ # The level of this warning

+ attr_reader :level

+

+ def initialize(message, location, level)

+ @level = level

+ { message: message, location: location, verbose_only: verbose_only }

+ "#<Prism::ParseWarning @message=#{@message.inspect} @location=#{@location.inspect} @level=#{@level}>"

+/** This struct holds the data for each diagnostic. */

+struct diagnostic_data {

+ /** The message associated with the diagnostic. */

+ const char* message;

+

+ /** The level associated with the diagnostic. */

+ pm_diagnostic_level_t level;

+};

+

+ *

+ * ## Level

+ *

+ * See pm_diagnostic_level_t for the available levels.

+ * For warning, they are either:

+ * PM_WARNING_VERBOSE_NOT_NIL if they appear for `ruby -c -e 'code'`,

+ * or PM_WARNING_VERBOSE_TRUE if they appear only with -w: `ruby -w -c -e 'code'`.

+static struct diagnostic_data const diagnostic_messages[PM_DIAGNOSTIC_ID_LEN] = {

+ // Errors

+ [PM_ERR_ALIAS_ARGUMENT] = { "invalid argument being passed to `alias`; expected a bare word, symbol, constant, or global variable", PM_ERROR_DEFAULT },

+ [PM_ERR_AMPAMPEQ_MULTI_ASSIGN] = { "unexpected `&&=` in a multiple assignment", PM_ERROR_DEFAULT },

+ [PM_ERR_ARGUMENT_AFTER_BLOCK] = { "unexpected argument after a block argument", PM_ERROR_DEFAULT },

+ [PM_ERR_ARGUMENT_AFTER_FORWARDING_ELLIPSES] = { "unexpected argument after `...`", PM_ERROR_DEFAULT },

+ [PM_ERR_ARGUMENT_BARE_HASH] = { "unexpected bare hash argument", PM_ERROR_DEFAULT },

+ [PM_ERR_ARGUMENT_BLOCK_FORWARDING] = { "both a block argument and a forwarding argument; only one block is allowed", PM_ERROR_DEFAULT },

+ [PM_ERR_ARGUMENT_BLOCK_MULTI] = { "multiple block arguments; only one block is allowed", PM_ERROR_DEFAULT },

+ [PM_ERR_ARGUMENT_FORMAL_CLASS] = { "invalid formal argument; formal argument cannot be a class variable", PM_ERROR_DEFAULT },

+ [PM_ERR_ARGUMENT_FORMAL_CONSTANT] = { "invalid formal argument; formal argument cannot be a constant", PM_ERROR_DEFAULT },

+ [PM_ERR_ARGUMENT_FORMAL_GLOBAL] = { "invalid formal argument; formal argument cannot be a global variable", PM_ERROR_DEFAULT },

+ [PM_ERR_ARGUMENT_FORMAL_IVAR] = { "invalid formal argument; formal argument cannot be an instance variable", PM_ERROR_DEFAULT },

+ [PM_ERR_ARGUMENT_FORWARDING_UNBOUND] = { "unexpected `...` in an non-parenthesized call", PM_ERROR_DEFAULT },

+ [PM_ERR_ARGUMENT_IN] = { "unexpected `in` keyword in arguments", PM_ERROR_DEFAULT },

+ [PM_ERR_ARGUMENT_NO_FORWARDING_AMP] = { "unexpected `&` when the parent method is not forwarding", PM_ERROR_DEFAULT },

+ [PM_ERR_ARGUMENT_NO_FORWARDING_ELLIPSES] = { "unexpected `...` when the parent method is not forwarding", PM_ERROR_DEFAULT },

+ [PM_ERR_ARGUMENT_NO_FORWARDING_STAR] = { "unexpected `*` when the parent method is not forwarding", PM_ERROR_DEFAULT },

+ [PM_ERR_ARGUMENT_SPLAT_AFTER_ASSOC_SPLAT] = { "unexpected `*` splat argument after a `**` keyword splat argument", PM_ERROR_DEFAULT },

+ [PM_ERR_ARGUMENT_SPLAT_AFTER_SPLAT] = { "unexpected `*` splat argument after a `*` splat argument", PM_ERROR_DEFAULT },

+ [PM_ERR_ARGUMENT_TERM_PAREN] = { "expected a `)` to close the arguments", PM_ERROR_DEFAULT },

+ [PM_ERR_ARGUMENT_UNEXPECTED_BLOCK] = { "unexpected `{` after a method call without parenthesis", PM_ERROR_DEFAULT },

+ [PM_ERR_ARRAY_ELEMENT] = { "expected an element for the array", PM_ERROR_DEFAULT },

+ [PM_ERR_ARRAY_EXPRESSION] = { "expected an expression for the array element", PM_ERROR_DEFAULT },

+ [PM_ERR_ARRAY_EXPRESSION_AFTER_STAR] = { "expected an expression after `*` in the array", PM_ERROR_DEFAULT },

+ [PM_ERR_ARRAY_SEPARATOR] = { "expected a `,` separator for the array elements", PM_ERROR_DEFAULT },

+ [PM_ERR_ARRAY_TERM] = { "expected a `]` to close the array", PM_ERROR_DEFAULT },

+ [PM_ERR_BEGIN_LONELY_ELSE] = { "unexpected `else` in `begin` block; a `rescue` clause must precede `else`", PM_ERROR_DEFAULT },

+ [PM_ERR_BEGIN_TERM] = { "expected an `end` to close the `begin` statement", PM_ERROR_DEFAULT },

+ [PM_ERR_BEGIN_UPCASE_BRACE] = { "expected a `{` after `BEGIN`", PM_ERROR_DEFAULT },

+ [PM_ERR_BEGIN_UPCASE_TERM] = { "expected a `}` to close the `BEGIN` statement", PM_ERROR_DEFAULT },

+ [PM_ERR_BEGIN_UPCASE_TOPLEVEL] = { "BEGIN is permitted only at toplevel", PM_ERROR_DEFAULT },

+ [PM_ERR_BLOCK_PARAM_LOCAL_VARIABLE] = { "expected a local variable name in the block parameters", PM_ERROR_DEFAULT },

+ [PM_ERR_BLOCK_PARAM_PIPE_TERM] = { "expected the block parameters to end with `|`", PM_ERROR_DEFAULT },

+ [PM_ERR_BLOCK_TERM_BRACE] = { "expected a block beginning with `{` to end with `}`", PM_ERROR_DEFAULT },

+ [PM_ERR_BLOCK_TERM_END] = { "expected a block beginning with `do` to end with `end`", PM_ERROR_DEFAULT },

+ [PM_ERR_CANNOT_PARSE_EXPRESSION] = { "cannot parse the expression", PM_ERROR_DEFAULT },

+ [PM_ERR_CANNOT_PARSE_STRING_PART] = { "cannot parse the string part", PM_ERROR_DEFAULT },

+ [PM_ERR_CASE_EXPRESSION_AFTER_CASE] = { "expected an expression after `case`", PM_ERROR_DEFAULT },

+ [PM_ERR_CASE_EXPRESSION_AFTER_WHEN] = { "expected an expression after `when`", PM_ERROR_DEFAULT },

+ [PM_ERR_CASE_MATCH_MISSING_PREDICATE] = { "expected a predicate for a case matching statement", PM_ERROR_DEFAULT },

+ [PM_ERR_CASE_MISSING_CONDITIONS] = { "expected a `when` or `in` clause after `case`", PM_ERROR_DEFAULT },

+ [PM_ERR_CASE_TERM] = { "expected an `end` to close the `case` statement", PM_ERROR_DEFAULT },

+ [PM_ERR_CLASS_IN_METHOD] = { "unexpected class definition in a method definition", PM_ERROR_DEFAULT },

+ [PM_ERR_CLASS_NAME] = { "expected a constant name after `class`", PM_ERROR_DEFAULT },

+ [PM_ERR_CLASS_SUPERCLASS] = { "expected a superclass after `<`", PM_ERROR_DEFAULT },

+ [PM_ERR_CLASS_TERM] = { "expected an `end` to close the `class` statement", PM_ERROR_DEFAULT },

+ [PM_ERR_CLASS_UNEXPECTED_END] = { "unexpected `end`, expecting ';' or '\\n'", PM_ERROR_DEFAULT },

+ [PM_ERR_CONDITIONAL_ELSIF_PREDICATE] = { "expected a predicate expression for the `elsif` statement", PM_ERROR_DEFAULT },

+ [PM_ERR_CONDITIONAL_IF_PREDICATE] = { "expected a predicate expression for the `if` statement", PM_ERROR_DEFAULT },

+ [PM_ERR_CONDITIONAL_PREDICATE_TERM] = { "expected `then` or `;` or '\\n'", PM_ERROR_DEFAULT },

+ [PM_ERR_CONDITIONAL_TERM] = { "expected an `end` to close the conditional clause", PM_ERROR_DEFAULT },

+ [PM_ERR_CONDITIONAL_TERM_ELSE] = { "expected an `end` to close the `else` clause", PM_ERROR_DEFAULT },

+ [PM_ERR_CONDITIONAL_UNLESS_PREDICATE] = { "expected a predicate expression for the `unless` statement", PM_ERROR_DEFAULT },

+ [PM_ERR_CONDITIONAL_UNTIL_PREDICATE] = { "expected a predicate expression for the `until` statement", PM_ERROR_DEFAULT },

+ [PM_ERR_CONDITIONAL_WHILE_PREDICATE] = { "expected a predicate expression for the `while` statement", PM_ERROR_DEFAULT },

+ [PM_ERR_CONSTANT_PATH_COLON_COLON_CONSTANT] = { "expected a constant after the `::` operator", PM_ERROR_DEFAULT },

+ [PM_ERR_DEF_ENDLESS] = { "could not parse the endless method body", PM_ERROR_DEFAULT },

+ [PM_ERR_DEF_ENDLESS_SETTER] = { "invalid method name; a setter method cannot be defined in an endless method definition", PM_ERROR_DEFAULT },

+ [PM_ERR_DEF_NAME] = { "expected a method name", PM_ERROR_DEFAULT },

+ [PM_ERR_DEF_NAME_AFTER_RECEIVER] = { "expected a method name after the receiver", PM_ERROR_DEFAULT },

+ [PM_ERR_DEF_PARAMS_TERM] = { "expected a delimiter to close the parameters", PM_ERROR_DEFAULT },

+ [PM_ERR_DEF_PARAMS_TERM_PAREN] = { "expected a `)` to close the parameters", PM_ERROR_DEFAULT },

+ [PM_ERR_DEF_RECEIVER] = { "expected a receiver for the method definition", PM_ERROR_DEFAULT },

+ [PM_ERR_DEF_RECEIVER_TERM] = { "expected a `.` or `::` after the receiver in a method definition", PM_ERROR_DEFAULT },

+ [PM_ERR_DEF_TERM] = { "expected an `end` to close the `def` statement", PM_ERROR_DEFAULT },

+ [PM_ERR_DEFINED_EXPRESSION] = { "expected an expression after `defined?`", PM_ERROR_DEFAULT },

+ [PM_ERR_EMBDOC_TERM] = { "could not find a terminator for the embedded document", PM_ERROR_DEFAULT },

+ [PM_ERR_EMBEXPR_END] = { "expected a `}` to close the embedded expression", PM_ERROR_DEFAULT },

+ [PM_ERR_EMBVAR_INVALID] = { "invalid embedded variable", PM_ERROR_DEFAULT },

+ [PM_ERR_END_UPCASE_BRACE] = { "expected a `{` after `END`", PM_ERROR_DEFAULT },

+ [PM_ERR_END_UPCASE_TERM] = { "expected a `}` to close the `END` statement", PM_ERROR_DEFAULT },

+ [PM_ERR_ESCAPE_INVALID_CONTROL] = { "invalid control escape sequence", PM_ERROR_DEFAULT },

+ [PM_ERR_ESCAPE_INVALID_CONTROL_REPEAT] = { "invalid control escape sequence; control cannot be repeated", PM_ERROR_DEFAULT },

+ [PM_ERR_ESCAPE_INVALID_HEXADECIMAL] = { "invalid hexadecimal escape sequence", PM_ERROR_DEFAULT },

+ [PM_ERR_ESCAPE_INVALID_META] = { "invalid meta escape sequence", PM_ERROR_DEFAULT },

+ [PM_ERR_ESCAPE_INVALID_META_REPEAT] = { "invalid meta escape sequence; meta cannot be repeated", PM_ERROR_DEFAULT },

+ [PM_ERR_ESCAPE_INVALID_UNICODE] = { "invalid Unicode escape sequence", PM_ERROR_DEFAULT },

+ [PM_ERR_ESCAPE_INVALID_UNICODE_CM_FLAGS] = { "invalid Unicode escape sequence; Unicode cannot be combined with control or meta flags", PM_ERROR_DEFAULT },

+ [PM_ERR_ESCAPE_INVALID_UNICODE_LITERAL] = { "invalid Unicode escape sequence; multiple codepoints are not allowed in a character literal", PM_ERROR_DEFAULT },

+ [PM_ERR_ESCAPE_INVALID_UNICODE_LONG] = { "invalid Unicode escape sequence; maximum length is 6 digits", PM_ERROR_DEFAULT },

+ [PM_ERR_ESCAPE_INVALID_UNICODE_TERM] = { "invalid Unicode escape sequence; needs closing `}`", PM_ERROR_DEFAULT },

+ [PM_ERR_EXPECT_ARGUMENT] = { "expected an argument", PM_ERROR_DEFAULT },

+ [PM_ERR_EXPECT_EOL_AFTER_STATEMENT] = { "expected a newline or semicolon after the statement", PM_ERROR_DEFAULT },

+ [PM_ERR_EXPECT_EXPRESSION_AFTER_AMPAMPEQ] = { "expected an expression after `&&=`", PM_ERROR_DEFAULT },

+ [PM_ERR_EXPECT_EXPRESSION_AFTER_PIPEPIPEEQ] = { "expected an expression after `||=`", PM_ERROR_DEFAULT },

+ [PM_ERR_EXPECT_EXPRESSION_AFTER_COMMA] = { "expected an expression after `,`", PM_ERROR_DEFAULT },

+ [PM_ERR_EXPECT_EXPRESSION_AFTER_EQUAL] = { "expected an expression after `=`", PM_ERROR_DEFAULT },

+ [PM_ERR_EXPECT_EXPRESSION_AFTER_LESS_LESS] = { "expected an expression after `<<`", PM_ERROR_DEFAULT },

+ [PM_ERR_EXPECT_EXPRESSION_AFTER_LPAREN] = { "expected an expression after `(`", PM_ERROR_DEFAULT },

+ [PM_ERR_EXPECT_EXPRESSION_AFTER_OPERATOR] = { "expected an expression after the operator", PM_ERROR_DEFAULT },

+ [PM_ERR_EXPECT_EXPRESSION_AFTER_SPLAT] = { "expected an expression after `*` splat in an argument", PM_ERROR_DEFAULT },

+ [PM_ERR_EXPECT_EXPRESSION_AFTER_SPLAT_HASH] = { "expected an expression after `**` in a hash", PM_ERROR_DEFAULT },

+ [PM_ERR_EXPECT_EXPRESSION_AFTER_STAR] = { "expected an expression after `*`", PM_ERROR_DEFAULT },

+ [PM_ERR_EXPECT_IDENT_REQ_PARAMETER] = { "expected an identifier for the required parameter", PM_ERROR_DEFAULT },

+ [PM_ERR_EXPECT_LPAREN_REQ_PARAMETER] = { "expected a `(` to start a required parameter", PM_ERROR_DEFAULT },

+ [PM_ERR_EXPECT_RBRACKET] = { "expected a matching `]`", PM_ERROR_DEFAULT },

+ [PM_ERR_EXPECT_RPAREN] = { "expected a matching `)`", PM_ERROR_DEFAULT },

+ [PM_ERR_EXPECT_RPAREN_AFTER_MULTI] = { "expected a `)` after multiple assignment", PM_ERROR_DEFAULT },

+ [PM_ERR_EXPECT_RPAREN_REQ_PARAMETER] = { "expected a `)` to end a required parameter", PM_ERROR_DEFAULT },

+ [PM_ERR_EXPECT_STRING_CONTENT] = { "expected string content after opening string delimiter", PM_ERROR_DEFAULT },

+ [PM_ERR_EXPECT_WHEN_DELIMITER] = { "expected a delimiter after the predicates of a `when` clause", PM_ERROR_DEFAULT },

+ [PM_ERR_EXPRESSION_BARE_HASH] = { "unexpected bare hash in expression", PM_ERROR_DEFAULT },

+ [PM_ERR_FOR_COLLECTION] = { "expected a collection after the `in` in a `for` statement", PM_ERROR_DEFAULT },

+ [PM_ERR_FOR_INDEX] = { "expected an index after `for`", PM_ERROR_DEFAULT },

+ [PM_ERR_FOR_IN] = { "expected an `in` after the index in a `for` statement", PM_ERROR_DEFAULT },

+ [PM_ERR_FOR_TERM] = { "expected an `end` to close the `for` loop", PM_ERROR_DEFAULT },

+ [PM_ERR_HASH_EXPRESSION_AFTER_LABEL] = { "expected an expression after the label in a hash", PM_ERROR_DEFAULT },

+ [PM_ERR_HASH_KEY] = { "expected a key in the hash literal", PM_ERROR_DEFAULT },

+ [PM_ERR_HASH_ROCKET] = { "expected a `=>` between the hash key and value", PM_ERROR_DEFAULT },

+ [PM_ERR_HASH_TERM] = { "expected a `}` to close the hash literal", PM_ERROR_DEFAULT },

+ [PM_ERR_HASH_VALUE] = { "expected a value in the hash literal", PM_ERROR_DEFAULT },

+ [PM_ERR_HEREDOC_TERM] = { "could not find a terminator for the heredoc", PM_ERROR_DEFAULT },

+ [PM_ERR_INCOMPLETE_QUESTION_MARK] = { "incomplete expression at `?`", PM_ERROR_DEFAULT },

+ [PM_ERR_INCOMPLETE_VARIABLE_CLASS] = { "incomplete class variable", PM_ERROR_DEFAULT },

+ [PM_ERR_INCOMPLETE_VARIABLE_INSTANCE] = { "incomplete instance variable", PM_ERROR_DEFAULT },

+ [PM_ERR_INVALID_ENCODING_MAGIC_COMMENT] = { "unknown or invalid encoding in the magic comment", PM_ERROR_DEFAULT },

+ [PM_ERR_INVALID_FLOAT_EXPONENT] = { "invalid exponent", PM_ERROR_DEFAULT },

+ [PM_ERR_INVALID_NUMBER_BINARY] = { "invalid binary number", PM_ERROR_DEFAULT },

+ [PM_ERR_INVALID_NUMBER_DECIMAL] = { "invalid decimal number", PM_ERROR_DEFAULT },

+ [PM_ERR_INVALID_NUMBER_HEXADECIMAL] = { "invalid hexadecimal number", PM_ERROR_DEFAULT },

+ [PM_ERR_INVALID_NUMBER_OCTAL] = { "invalid octal number", PM_ERROR_DEFAULT },

+ [PM_ERR_INVALID_NUMBER_UNDERSCORE] = { "invalid underscore placement in number", PM_ERROR_DEFAULT },

+ [PM_ERR_INVALID_PERCENT] = { "invalid `%` token", PM_ERROR_DEFAULT }, // TODO WHAT?

+ [PM_ERR_INVALID_TOKEN] = { "invalid token", PM_ERROR_DEFAULT }, // TODO WHAT?

+ [PM_ERR_INVALID_VARIABLE_GLOBAL] = { "invalid global variable", PM_ERROR_DEFAULT },

+ [PM_ERR_IT_NOT_ALLOWED] = { "`it` is not allowed when an ordinary parameter is defined", PM_ERROR_DEFAULT },

+ [PM_ERR_LAMBDA_OPEN] = { "expected a `do` keyword or a `{` to open the lambda block", PM_ERROR_DEFAULT },

+ [PM_ERR_LAMBDA_TERM_BRACE] = { "expected a lambda block beginning with `{` to end with `}`", PM_ERROR_DEFAULT },

+ [PM_ERR_LAMBDA_TERM_END] = { "expected a lambda block beginning with `do` to end with `end`", PM_ERROR_DEFAULT },

+ [PM_ERR_LIST_I_LOWER_ELEMENT] = { "expected a symbol in a `%i` list", PM_ERROR_DEFAULT },

+ [PM_ERR_LIST_I_LOWER_TERM] = { "expected a closing delimiter for the `%i` list", PM_ERROR_DEFAULT },

+ [PM_ERR_LIST_I_UPPER_ELEMENT] = { "expected a symbol in a `%I` list", PM_ERROR_DEFAULT },

+ [PM_ERR_LIST_I_UPPER_TERM] = { "expected a closing delimiter for the `%I` list", PM_ERROR_DEFAULT },

+ [PM_ERR_LIST_W_LOWER_ELEMENT] = { "expected a string in a `%w` list", PM_ERROR_DEFAULT },

+ [PM_ERR_LIST_W_LOWER_TERM] = { "expected a closing delimiter for the `%w` list", PM_ERROR_DEFAULT },

+ [PM_ERR_LIST_W_UPPER_ELEMENT] = { "expected a string in a `%W` list", PM_ERROR_DEFAULT },

+ [PM_ERR_LIST_W_UPPER_TERM] = { "expected a closing delimiter for the `%W` list", PM_ERROR_DEFAULT },

+ [PM_ERR_MALLOC_FAILED] = { "failed to allocate memory", PM_ERROR_DEFAULT },

+ [PM_ERR_MIXED_ENCODING] = { "UTF-8 mixed within %s source", PM_ERROR_DEFAULT },

+ [PM_ERR_MODULE_IN_METHOD] = { "unexpected module definition in a method definition", PM_ERROR_DEFAULT },

+ [PM_ERR_MODULE_NAME] = { "expected a constant name after `module`", PM_ERROR_DEFAULT },

+ [PM_ERR_MODULE_TERM] = { "expected an `end` to close the `module` statement", PM_ERROR_DEFAULT },

+ [PM_ERR_MULTI_ASSIGN_MULTI_SPLATS] = { "multiple splats in multiple assignment", PM_ERROR_DEFAULT },

+ [PM_ERR_NOT_EXPRESSION] = { "expected an expression after `not`", PM_ERROR_DEFAULT },

+ [PM_ERR_NO_LOCAL_VARIABLE] = { "%.*s: no such local variable", PM_ERROR_DEFAULT },

+ [PM_ERR_NUMBER_LITERAL_UNDERSCORE] = { "number literal ending with a `_`", PM_ERROR_DEFAULT },

+ [PM_ERR_NUMBERED_PARAMETER_NOT_ALLOWED] = { "numbered parameters are not allowed when an ordinary parameter is defined", PM_ERROR_DEFAULT },

+ [PM_ERR_NUMBERED_PARAMETER_OUTER_SCOPE] = { "numbered parameter is already used in outer scope", PM_ERROR_DEFAULT },

+ [PM_ERR_OPERATOR_MULTI_ASSIGN] = { "unexpected operator for a multiple assignment", PM_ERROR_DEFAULT },

+ [PM_ERR_OPERATOR_WRITE_ARGUMENTS] = { "unexpected operator after a call with arguments", PM_ERROR_DEFAULT },

+ [PM_ERR_OPERATOR_WRITE_BLOCK] = { "unexpected operator after a call with a block", PM_ERROR_DEFAULT },

+ [PM_ERR_PARAMETER_ASSOC_SPLAT_MULTI] = { "unexpected multiple `**` splat parameters", PM_ERROR_DEFAULT },

+ [PM_ERR_PARAMETER_BLOCK_MULTI] = { "multiple block parameters; only one block is allowed", PM_ERROR_DEFAULT },

+ [PM_ERR_PARAMETER_CIRCULAR] = { "parameter default value references itself", PM_ERROR_DEFAULT },

+ [PM_ERR_PARAMETER_METHOD_NAME] = { "unexpected name for a parameter", PM_ERROR_DEFAULT },

+ [PM_ERR_PARAMETER_NAME_REPEAT] = { "repeated parameter name", PM_ERROR_DEFAULT },

+ [PM_ERR_PARAMETER_NO_DEFAULT] = { "expected a default value for the parameter", PM_ERROR_DEFAULT },

+ [PM_ERR_PARAMETER_NO_DEFAULT_KW] = { "expected a default value for the keyword parameter", PM_ERROR_DEFAULT },

+ [PM_ERR_PARAMETER_NUMBERED_RESERVED] = { "%.2s is reserved for numbered parameters", PM_ERROR_DEFAULT },

+ [PM_ERR_PARAMETER_ORDER] = { "unexpected parameter order", PM_ERROR_DEFAULT },

+ [PM_ERR_PARAMETER_SPLAT_MULTI] = { "unexpected multiple `*` splat parameters", PM_ERROR_DEFAULT },

+ [PM_ERR_PARAMETER_STAR] = { "unexpected parameter `*`", PM_ERROR_DEFAULT },

+ [PM_ERR_PARAMETER_UNEXPECTED_FWD] = { "unexpected `...` in parameters", PM_ERROR_DEFAULT },

+ [PM_ERR_PARAMETER_WILD_LOOSE_COMMA] = { "unexpected `,` in parameters", PM_ERROR_DEFAULT },

+ [PM_ERR_PATTERN_EXPRESSION_AFTER_BRACKET] = { "expected a pattern expression after the `[` operator", PM_ERROR_DEFAULT },

+ [PM_ERR_PATTERN_EXPRESSION_AFTER_COMMA] = { "expected a pattern expression after `,`", PM_ERROR_DEFAULT },

+ [PM_ERR_PATTERN_EXPRESSION_AFTER_HROCKET] = { "expected a pattern expression after `=>`", PM_ERROR_DEFAULT },

+ [PM_ERR_PATTERN_EXPRESSION_AFTER_IN] = { "expected a pattern expression after the `in` keyword", PM_ERROR_DEFAULT },

+ [PM_ERR_PATTERN_EXPRESSION_AFTER_KEY] = { "expected a pattern expression after the key", PM_ERROR_DEFAULT },

+ [PM_ERR_PATTERN_EXPRESSION_AFTER_PAREN] = { "expected a pattern expression after the `(` operator", PM_ERROR_DEFAULT },

+ [PM_ERR_PATTERN_EXPRESSION_AFTER_PIN] = { "expected a pattern expression after the `^` pin operator", PM_ERROR_DEFAULT },

+ [PM_ERR_PATTERN_EXPRESSION_AFTER_PIPE] = { "expected a pattern expression after the `|` operator", PM_ERROR_DEFAULT },

+ [PM_ERR_PATTERN_EXPRESSION_AFTER_RANGE] = { "expected a pattern expression after the range operator", PM_ERROR_DEFAULT },

+ [PM_ERR_PATTERN_EXPRESSION_AFTER_REST] = { "unexpected pattern expression after the `**` expression", PM_ERROR_DEFAULT },

+ [PM_ERR_PATTERN_HASH_KEY] = { "expected a key in the hash pattern", PM_ERROR_DEFAULT },

+ [PM_ERR_PATTERN_HASH_KEY_LABEL] = { "expected a label as the key in the hash pattern", PM_ERROR_DEFAULT }, // TODO // THIS // AND // ABOVE // IS WEIRD

+ [PM_ERR_PATTERN_IDENT_AFTER_HROCKET] = { "expected an identifier after the `=>` operator", PM_ERROR_DEFAULT },

+ [PM_ERR_PATTERN_LABEL_AFTER_COMMA] = { "expected a label after the `,` in the hash pattern", PM_ERROR_DEFAULT },

+ [PM_ERR_PATTERN_REST] = { "unexpected rest pattern", PM_ERROR_DEFAULT },

+ [PM_ERR_PATTERN_TERM_BRACE] = { "expected a `}` to close the pattern expression", PM_ERROR_DEFAULT },

+ [PM_ERR_PATTERN_TERM_BRACKET] = { "expected a `]` to close the pattern expression", PM_ERROR_DEFAULT },

+ [PM_ERR_PATTERN_TERM_PAREN] = { "expected a `)` to close the pattern expression", PM_ERROR_DEFAULT },

+ [PM_ERR_PIPEPIPEEQ_MULTI_ASSIGN] = { "unexpected `||=` in a multiple assignment", PM_ERROR_DEFAULT },

+ [PM_ERR_REGEXP_TERM] = { "expected a closing delimiter for the regular expression", PM_ERROR_DEFAULT },

+ [PM_ERR_RESCUE_EXPRESSION] = { "expected a rescued expression", PM_ERROR_DEFAULT },

+ [PM_ERR_RESCUE_MODIFIER_VALUE] = { "expected a value after the `rescue` modifier", PM_ERROR_DEFAULT },

+ [PM_ERR_RESCUE_TERM] = { "expected a closing delimiter for the `rescue` clause", PM_ERROR_DEFAULT },

+ [PM_ERR_RESCUE_VARIABLE] = { "expected an exception variable after `=>` in a rescue statement", PM_ERROR_DEFAULT },

+ [PM_ERR_RETURN_INVALID] = { "invalid `return` in a class or module body", PM_ERROR_DEFAULT },

+ [PM_ERR_STATEMENT_ALIAS] = { "unexpected an `alias` at a non-statement position", PM_ERROR_DEFAULT },

+ [PM_ERR_STATEMENT_POSTEXE_END] = { "unexpected an `END` at a non-statement position", PM_ERROR_DEFAULT },

+ [PM_ERR_STATEMENT_PREEXE_BEGIN] = { "unexpected a `BEGIN` at a non-statement position", PM_ERROR_DEFAULT },

+ [PM_ERR_STATEMENT_UNDEF] = { "unexpected an `undef` at a non-statement position", PM_ERROR_DEFAULT },

+ [PM_ERR_STRING_CONCATENATION] = { "expected a string for concatenation", PM_ERROR_DEFAULT },

+ [PM_ERR_STRING_INTERPOLATED_TERM] = { "expected a closing delimiter for the interpolated string", PM_ERROR_DEFAULT },

+ [PM_ERR_STRING_LITERAL_TERM] = { "expected a closing delimiter for the string literal", PM_ERROR_DEFAULT },

+ [PM_ERR_SYMBOL_INVALID] = { "invalid symbol", PM_ERROR_DEFAULT }, // TODO expected symbol? prism.c ~9719

+ [PM_ERR_SYMBOL_TERM_DYNAMIC] = { "expected a closing delimiter for the dynamic symbol", PM_ERROR_DEFAULT },

+ [PM_ERR_SYMBOL_TERM_INTERPOLATED] = { "expected a closing delimiter for the interpolated symbol", PM_ERROR_DEFAULT },

+ [PM_ERR_TERNARY_COLON] = { "expected a `:` after the true expression of a ternary operator", PM_ERROR_DEFAULT },

+ [PM_ERR_TERNARY_EXPRESSION_FALSE] = { "expected an expression after `:` in the ternary operator", PM_ERROR_DEFAULT },

+ [PM_ERR_TERNARY_EXPRESSION_TRUE] = { "expected an expression after `?` in the ternary operator", PM_ERROR_DEFAULT },

+ [PM_ERR_UNDEF_ARGUMENT] = { "invalid argument being passed to `undef`; expected a bare word, constant, or symbol argument", PM_ERROR_DEFAULT },

+ [PM_ERR_UNARY_RECEIVER_BANG] = { "expected a receiver for unary `!`", PM_ERROR_DEFAULT },

+ [PM_ERR_UNARY_RECEIVER_MINUS] = { "expected a receiver for unary `-`", PM_ERROR_DEFAULT },

+ [PM_ERR_UNARY_RECEIVER_PLUS] = { "expected a receiver for unary `+`", PM_ERROR_DEFAULT },

+ [PM_ERR_UNARY_RECEIVER_TILDE] = { "expected a receiver for unary `~`", PM_ERROR_DEFAULT },

+ [PM_ERR_UNTIL_TERM] = { "expected an `end` to close the `until` statement", PM_ERROR_DEFAULT },

+ [PM_ERR_VOID_EXPRESSION] = { "unexpected void value expression", PM_ERROR_DEFAULT },

+ [PM_ERR_WHILE_TERM] = { "expected an `end` to close the `while` statement", PM_ERROR_DEFAULT },

+ [PM_ERR_WRITE_TARGET_IN_METHOD] = { "dynamic constant assignment", PM_ERROR_DEFAULT },

+ [PM_ERR_WRITE_TARGET_READONLY] = { "immutable variable as a write target", PM_ERROR_DEFAULT },

+ [PM_ERR_WRITE_TARGET_UNEXPECTED] = { "unexpected write target", PM_ERROR_DEFAULT },

+ [PM_ERR_XSTRING_TERM] = { "expected a closing delimiter for the `%x` or backtick string", PM_ERROR_DEFAULT },

+ // Warnings

+ [PM_WARN_AMBIGUOUS_FIRST_ARGUMENT_MINUS] = { "ambiguous first argument; put parentheses or a space even after `-` operator", PM_WARNING_VERBOSE_TRUE },

+ [PM_WARN_AMBIGUOUS_FIRST_ARGUMENT_PLUS] = { "ambiguous first argument; put parentheses or a space even after `+` operator", PM_WARNING_VERBOSE_TRUE },

+ [PM_WARN_AMBIGUOUS_PREFIX_STAR] = { "ambiguous `*` has been interpreted as an argument prefix", PM_WARNING_VERBOSE_TRUE },

+ [PM_WARN_AMBIGUOUS_SLASH] = { "ambiguous `/`; wrap regexp in parentheses or add a space after `/` operator", PM_WARNING_VERBOSE_TRUE },

+ [PM_WARN_END_IN_METHOD] = { "END in method; use at_exit", PM_WARNING_VERBOSE_NOT_NIL },

+ const char *message = diagnostic_messages[diag_id].message;

+static uint8_t

+pm_diagnostic_level(pm_diagnostic_id_t diag_id) {

+ assert(diag_id < PM_DIAGNOSTIC_ID_LEN);

+

+ return (uint8_t) diagnostic_messages[diag_id].level;

+}

+

+ .owned = false,

+ .level = pm_diagnostic_level(diag_id)

+ .owned = true,

+ .level = pm_diagnostic_level(diag_id)

+ * This enum represents the level of diagnostics generated during parsing.

+ */

+typedef enum {

+ /** The default level for errors. */

+ PM_ERROR_DEFAULT = 0,

+ /** For warnings which should be emitted if $VERBOSE != nil. */

+ PM_WARNING_VERBOSE_NOT_NIL = 1,

+ /** For warnings which should be emitted if $VERBOSE == true. */

+ PM_WARNING_VERBOSE_TRUE = 2

+} pm_diagnostic_level_t;

+

+/**

+

+ /** The level of the diagnostic, see pm_diagnostic_level_t for possible values. */

+ uint8_t level;

+static VALUE get_diagnostic_level_symbol(uint8_t level) {

+ switch (level) {

+ case 0:

+ return ID2SYM(rb_intern("error_default"));

+ case 1:

+ return ID2SYM(rb_intern("warning_verbose_not_nil"));

+ case 2:

+ return ID2SYM(rb_intern("warning_verbose_true"));

+ default:

+ rb_raise(rb_eRuntimeError, "Unknown level: %" PRIu8, level);

+ }

+}

+

+ rb_class_new_instance(3, location_argv, rb_cPrismLocation),

+ get_diagnostic_level_symbol(error->level)

+ rb_ary_push(errors, rb_class_new_instance(3, error_argv, rb_cPrismParseError));

+ rb_class_new_instance(3, location_argv, rb_cPrismLocation),

+ get_diagnostic_level_symbol(warning->level)

+ rb_ary_push(warnings, rb_class_new_instance(3, warning_argv, rb_cPrismParseWarning));

+ errors = load_varuint.times.map { ParseError.new(load_embedded_string, load_location, load_diagnostic_level) }

+ warnings = load_varuint.times.map { ParseWarning.new(load_embedded_string, load_location, load_diagnostic_level) }

+ def load_diagnostic_level

+ level = io.getbyte

+ case level

+ when 0

+ :error_default

+ when 1

+ :warning_verbose_not_nil

+ when 2

+ :warning_verbose_true

+ else

+ raise "Unknown level: #{level}"

+ end

+ end

+

+

+ pm_buffer_append_byte(buffer, diagnostic->level);

+ def test_warnings_verbosity

+ warning = Prism.parse("def foo; END { }; end").warnings[0]

+ assert_equal "END in method; use at_exit", warning.message

+ assert_equal :warning_verbose_not_nil, warning.level

+

+ warning = Prism.parse("foo /regexp/").warnings[0]

+ assert_equal "ambiguous `/`; wrap regexp in parentheses or add a space after `/` operator", warning.message

+ assert_equal :warning_verbose_true, warning.level

+ end

+