@aurelia/expression-parser
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text/typescript
/* eslint-disable @typescript-eslint/no-unsafe-member-access */
/* eslint-disable prefer-template */
import { safeString } from './utilities';
/** @internal */
export const createMappedError: CreateError = __DEV__
? (code: ErrorNames, ...details: unknown[]) => new Error(`AUR${safeString(code).padStart(4, '0')}: ${getMessageByCode(code, ...details)}`)
: (code: ErrorNames, ...details: unknown[]) => new Error(`AUR${safeString(code).padStart(4, '0')}:${details.map(safeString)}`);
_START_CONST_ENUM();
/** @internal */
export const enum ErrorNames {
method_not_implemented = 99,
ast_behavior_not_found = 101,
ast_behavior_duplicated = 102,
ast_converter_not_found = 103,
ast_$host_not_found = 105,
ast_no_assign_$host = 106,
ast_not_a_function = 107,
ast_unknown_binary_operator = 108,
ast_unknown_unary_operator = 109,
ast_tagged_not_a_function = 110,
ast_name_is_not_a_function = 111,
ast_destruct_null = 112,
parse_invalid_start = 151,
parse_no_spread = 152,
parse_expected_identifier = 153,
parse_invalid_member_expr = 154,
parse_unexpected_end = 155,
parse_unconsumed_token = 156,
parse_invalid_empty = 157,
parse_left_hand_side_not_assignable = 158,
parse_expected_converter_identifier = 159,
parse_expected_behavior_identifier = 160,
parse_unexpected_keyword_of = 161,
parse_unexpected_keyword_import = 162,
parse_invalid_identifier_in_forof = 163,
parse_invalid_identifier_object_literal_key = 164,
parse_unterminated_string = 165,
parse_unterminated_template_string = 166,
parse_missing_expected_token = 167,
parse_unexpected_character = 168,
parse_unexpected_token_destructuring = 170,
parse_unexpected_token_optional_chain = 171,
parse_invalid_tag_in_optional_chain = 172,
parse_invalid_arrow_params = 173,
parse_no_arrow_param_default_value = 174,
parse_no_arrow_param_destructuring = 175,
parse_rest_must_be_last = 176,
parse_no_arrow_fn_body = 178,
parse_unexpected_double_dot = 179,
}
_END_CONST_ENUM();
const errorsMap: Record<ErrorNames, string> = {
[ErrorNames.method_not_implemented]: 'Method {{0}} not implemented',
[ErrorNames.ast_behavior_not_found]: `Ast eval error: binding behavior "{{0}}" could not be found. Did you forget to register it as a dependency?`,
[ErrorNames.ast_behavior_duplicated]: `Ast eval error: binding behavior "{{0}}" already applied.`,
[ErrorNames.ast_converter_not_found]: `Ast eval error: value converter "{{0}}" could not be found. Did you forget to register it as a dependency?`,
[ErrorNames.ast_$host_not_found]: `Ast eval error: unable to find $host context. Did you forget [au-slot] attribute?`,
[ErrorNames.ast_no_assign_$host]: `Ast eval error: invalid assignment. "$host" is a reserved keyword.`,
[ErrorNames.ast_not_a_function]: `Ast eval error: expression is not a function.`,
[ErrorNames.ast_unknown_unary_operator]: `Ast eval error: unknown unary operator: "{{0}}"`,
[ErrorNames.ast_unknown_binary_operator]: `Ast eval error: unknown binary operator: "{{0}}"`,
[ErrorNames.ast_tagged_not_a_function]: `Ast eval error: left-hand side of tagged template expression is not a function.`,
[ErrorNames.ast_name_is_not_a_function]: `Ast eval error: expected "{{0}}" to be a function`,
[ErrorNames.ast_destruct_null]: `Ast eval error: cannot use non-object value for destructuring assignment.`,
[ErrorNames.parse_invalid_start]: `Expression error: invalid start: "{{0}}"`,
[ErrorNames.parse_no_spread]: `Expression error: spread operator is not supported: "{{0}}"`,
[ErrorNames.parse_expected_identifier]: `Expression error: expected identifier: "{{0}}"`,
[ErrorNames.parse_invalid_member_expr]: `Expression error: invalid member expression: "{{0}}"`,
[ErrorNames.parse_unexpected_end]: `Expression error: unexpected end of expression: "{{0}}"`,
[ErrorNames.parse_unconsumed_token]: `Expression error: unconsumed token: "{{0}}" at position {{1}} of "{{2}}"`,
[ErrorNames.parse_invalid_empty]: `Expression error: invalid empty expression. Empty expression is only valid in event bindings (trigger, delegate, capture etc...)`,
[ErrorNames.parse_left_hand_side_not_assignable]: `Expression error: left hand side of expression is not assignable: "{{0}}"`,
[ErrorNames.parse_expected_converter_identifier]: `Expression error: expected identifier to come after value converter operator: "{{0}}"`,
[ErrorNames.parse_expected_behavior_identifier]: `Expression error: expected identifier to come after binding behavior operator: {{0}}`,
[ErrorNames.parse_unexpected_keyword_of]: `Expression error: unexpected keyword "of": "{{0}}"`,
[ErrorNames.parse_unexpected_keyword_import]: `Expression error: unexpected keyword "import": "{{0}}"`,
[ErrorNames.parse_invalid_identifier_in_forof]: `Expression error: invalid BindingIdentifier at left hand side of "of": "{{0}}" | kind: {{1}}`,
[ErrorNames.parse_invalid_identifier_object_literal_key]: `Expression error: invalid or unsupported property definition in object literal: "{{0}}"`,
[ErrorNames.parse_unterminated_string]: `Expression error: unterminated quote in string literal: "{{0}}"`,
[ErrorNames.parse_unterminated_template_string]: `Expression error: unterminated template string: "{{0}}"`,
[ErrorNames.parse_missing_expected_token]: `Expression error: missing expected token "{{0}}" in "{{1}}"`,
[ErrorNames.parse_unexpected_character]: `Expression error: unexpected character: "{{0}}"`,
[ErrorNames.parse_unexpected_token_destructuring]: `Expression error: unexpected "{{0}}" at position "{{1}}" for destructuring assignment in "{{2}}"`,
[ErrorNames.parse_unexpected_token_optional_chain]: `Expression error: unexpected {{0}} at position "{{1}}" for optional chain in "{{2}}"`,
[ErrorNames.parse_invalid_tag_in_optional_chain]: `Expression error: invalid tagged template on optional chain in "{{1}}"`,
[ErrorNames.parse_invalid_arrow_params]: `Expression error: invalid arrow parameter list in "{{0}}"`,
[ErrorNames.parse_no_arrow_param_default_value]: `Expression error: arrow function with default parameters is not supported: "{{0}}"`,
[ErrorNames.parse_no_arrow_param_destructuring]: `Expression error: arrow function with destructuring parameters is not supported: "{{0}}"`,
[ErrorNames.parse_rest_must_be_last]: `Expression error: rest parameter must be last formal parameter in arrow function: "{{0}}"`,
[ErrorNames.parse_no_arrow_fn_body]: `Expression error: arrow function with function body is not supported: "{{0}}"`,
[ErrorNames.parse_unexpected_double_dot]: `Expression error: unexpected token '.' at position "{{1}}" in "{{0}}"`,
};
const getMessageByCode = (name: ErrorNames, ...details: unknown[]) => {
let cooked: string = errorsMap[name];
for (let i = 0; i < details.length; ++i) {
const regex = new RegExp(`{{${i}(:.*)?}}`, 'g');
let matches = regex.exec(cooked);
while (matches != null) {
const method = matches[1]?.slice(1);
let value = details[i] as any;
if (value != null) {
switch (method) {
case 'toString': value = Object.prototype.toString.call(value); break;
case 'join(!=)': value = (value as unknown[]).join('!='); break;
case 'element': value = value === '*' ? 'all elements' : `<${value} />`; break;
default: {
// property access
if (method?.startsWith('.')) {
value = safeString(value[method.slice(1)]);
} else {
value = safeString(value);
}
}
}
}
cooked = cooked.slice(0, matches.index) + value + cooked.slice(regex.lastIndex);
matches = regex.exec(cooked);
}
}
return cooked;
};
type CreateError = (code: ErrorNames, ...details: unknown[]) => Error;
// eslint-disable-next-line @typescript-eslint/no-unused-vars
function pleaseHelpCreateAnIssue(title: string, body?: string) {
return `\nThis is likely an issue with Aurelia.\n Please help create an issue by clicking the following link\n`
+ `https://github.com/aurelia/aurelia/issues/new?title=${encodeURIComponent(title)}`
+ (body != null ? `&body=${encodeURIComponent(body)}` : '&template=bug_report.md');
}