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export interface CompilerError extends SyntaxError {
code: number | string
loc?: SourceLocation
}
export interface CoreCompilerError extends CompilerError {
code: ErrorCodes
}
export function defaultOnError(error: CompilerError): never {
throw error
}
export function defaultOnWarn(msg: CompilerError): void {
__DEV__ && console.warn(`[Vue warn] ${msg.message}`)
}
type InferCompilerError<T> = T extends ErrorCodes
? CoreCompilerError
: CompilerError
export function createCompilerError<T extends number>(
code: T,
loc?: SourceLocation,
messages?: { [code: number]: string },
additionalMessage?: string,
): InferCompilerError<T> {
const msg =
__DEV__ || !__BROWSER__
? (messages || errorMessages)[code] + (additionalMessage || ``)
: `https://vuejs.org/error-reference/#compiler-${code}`
const error = new SyntaxError(String(msg)) as InferCompilerError<T>
error.code = code
error.loc = loc
return error
}
export enum ErrorCodes {
// parse errors
ABRUPT_CLOSING_OF_EMPTY_COMMENT,
CDATA_IN_HTML_CONTENT,
DUPLICATE_ATTRIBUTE,
END_TAG_WITH_ATTRIBUTES,
END_TAG_WITH_TRAILING_SOLIDUS,
EOF_BEFORE_TAG_NAME,
EOF_IN_CDATA,
EOF_IN_COMMENT,
EOF_IN_SCRIPT_HTML_COMMENT_LIKE_TEXT,
EOF_IN_TAG,
INCORRECTLY_CLOSED_COMMENT,
INCORRECTLY_OPENED_COMMENT,
INVALID_FIRST_CHARACTER_OF_TAG_NAME,
MISSING_ATTRIBUTE_VALUE,
MISSING_END_TAG_NAME,
MISSING_WHITESPACE_BETWEEN_ATTRIBUTES,
NESTED_COMMENT,
UNEXPECTED_CHARACTER_IN_ATTRIBUTE_NAME,
UNEXPECTED_CHARACTER_IN_UNQUOTED_ATTRIBUTE_VALUE,
UNEXPECTED_EQUALS_SIGN_BEFORE_ATTRIBUTE_NAME,
UNEXPECTED_NULL_CHARACTER,
UNEXPECTED_QUESTION_MARK_INSTEAD_OF_TAG_NAME,
UNEXPECTED_SOLIDUS_IN_TAG,
// Vue-specific parse errors
X_INVALID_END_TAG,
X_MISSING_END_TAG,
X_MISSING_INTERPOLATION_END,
X_MISSING_DIRECTIVE_NAME,
X_MISSING_DYNAMIC_DIRECTIVE_ARGUMENT_END,
// transform errors
X_V_IF_NO_EXPRESSION,
X_V_IF_SAME_KEY,
X_V_ELSE_NO_ADJACENT_IF,
X_V_FOR_NO_EXPRESSION,
X_V_FOR_MALFORMED_EXPRESSION,
X_V_FOR_TEMPLATE_KEY_PLACEMENT,
X_V_BIND_NO_EXPRESSION,
X_V_ON_NO_EXPRESSION,
X_V_SLOT_UNEXPECTED_DIRECTIVE_ON_SLOT_OUTLET,
X_V_SLOT_MIXED_SLOT_USAGE,
X_V_SLOT_DUPLICATE_SLOT_NAMES,
X_V_SLOT_EXTRANEOUS_DEFAULT_SLOT_CHILDREN,
X_V_SLOT_MISPLACED,
X_V_MODEL_NO_EXPRESSION,
X_V_MODEL_MALFORMED_EXPRESSION,
X_V_MODEL_ON_SCOPE_VARIABLE,
X_V_MODEL_ON_PROPS,
X_INVALID_EXPRESSION,
X_KEEP_ALIVE_INVALID_CHILDREN,
// generic errors
X_PREFIX_ID_NOT_SUPPORTED,
X_MODULE_MODE_NOT_SUPPORTED,
X_CACHE_HANDLER_NOT_SUPPORTED,
X_SCOPE_ID_NOT_SUPPORTED,
X_VNODE_HOOKS,
// placed here to preserve order for the current minor
// TODO adjust order in 3.5
X_V_BIND_INVALID_SAME_NAME_ARGUMENT,
// Special value for higher-order compilers to pick up the last code
// to avoid collision of error codes. This should always be kept as the last
// item.
__EXTEND_POINT__,
}
export const errorMessages: Record<ErrorCodes, string> = {
// parse errors
[ErrorCodes.ABRUPT_CLOSING_OF_EMPTY_COMMENT]: 'Illegal comment.',
[ErrorCodes.CDATA_IN_HTML_CONTENT]:
'CDATA section is allowed only in XML context.',
[ErrorCodes.DUPLICATE_ATTRIBUTE]: 'Duplicate attribute.',
[ErrorCodes.END_TAG_WITH_ATTRIBUTES]: 'End tag cannot have attributes.',
[ErrorCodes.END_TAG_WITH_TRAILING_SOLIDUS]: "Illegal '/' in tags.",
[ErrorCodes.EOF_BEFORE_TAG_NAME]: 'Unexpected EOF in tag.',
[ErrorCodes.EOF_IN_CDATA]: 'Unexpected EOF in CDATA section.',
[ErrorCodes.EOF_IN_COMMENT]: 'Unexpected EOF in comment.',
[ErrorCodes.EOF_IN_SCRIPT_HTML_COMMENT_LIKE_TEXT]:
'Unexpected EOF in script.',
[ErrorCodes.EOF_IN_TAG]: 'Unexpected EOF in tag.',
[ErrorCodes.INCORRECTLY_CLOSED_COMMENT]: 'Incorrectly closed comment.',
[ErrorCodes.INCORRECTLY_OPENED_COMMENT]: 'Incorrectly opened comment.',
[ErrorCodes.INVALID_FIRST_CHARACTER_OF_TAG_NAME]:
"Illegal tag name. Use '<' to print '<'.",
[ErrorCodes.MISSING_ATTRIBUTE_VALUE]: 'Attribute value was expected.',
[ErrorCodes.MISSING_END_TAG_NAME]: 'End tag name was expected.',
[ErrorCodes.MISSING_WHITESPACE_BETWEEN_ATTRIBUTES]:
'Whitespace was expected.',
[ErrorCodes.NESTED_COMMENT]: "Unexpected '<!--' in comment.",
[ErrorCodes.UNEXPECTED_CHARACTER_IN_ATTRIBUTE_NAME]:
'Attribute name cannot contain U+0022 ("), U+0027 (\'), and U+003C (<).',
[ErrorCodes.UNEXPECTED_CHARACTER_IN_UNQUOTED_ATTRIBUTE_VALUE]:
'Unquoted attribute value cannot contain U+0022 ("), U+0027 (\'), U+003C (<), U+003D (=), and U+0060 (`).',
[ErrorCodes.UNEXPECTED_EQUALS_SIGN_BEFORE_ATTRIBUTE_NAME]:
"Attribute name cannot start with '='.",
[ErrorCodes.UNEXPECTED_QUESTION_MARK_INSTEAD_OF_TAG_NAME]:
"'<?' is allowed only in XML context.",
[ErrorCodes.UNEXPECTED_NULL_CHARACTER]: `Unexpected null character.`,
[ErrorCodes.UNEXPECTED_SOLIDUS_IN_TAG]: "Illegal '/' in tags.",
// Vue-specific parse errors
[ErrorCodes.X_INVALID_END_TAG]: 'Invalid end tag.',
[ErrorCodes.X_MISSING_END_TAG]: 'Element is missing end tag.',
[ErrorCodes.X_MISSING_INTERPOLATION_END]:
'Interpolation end sign was not found.',
[ErrorCodes.X_MISSING_DYNAMIC_DIRECTIVE_ARGUMENT_END]:
'End bracket for dynamic directive argument was not found. ' +
'Note that dynamic directive argument cannot contain spaces.',
[ErrorCodes.X_MISSING_DIRECTIVE_NAME]: 'Legal directive name was expected.',
// transform errors
[ErrorCodes.X_V_IF_NO_EXPRESSION]: `v-if/v-else-if is missing expression.`,
[ErrorCodes.X_V_IF_SAME_KEY]: `v-if/else branches must use unique keys.`,
[ErrorCodes.X_V_ELSE_NO_ADJACENT_IF]: `v-else/v-else-if has no adjacent v-if or v-else-if.`,
[ErrorCodes.X_V_FOR_NO_EXPRESSION]: `v-for is missing expression.`,
[ErrorCodes.X_V_FOR_MALFORMED_EXPRESSION]: `v-for has invalid expression.`,
[ErrorCodes.X_V_FOR_TEMPLATE_KEY_PLACEMENT]: `<template v-for> key should be placed on the <template> tag.`,
[ErrorCodes.X_V_BIND_NO_EXPRESSION]: `v-bind is missing expression.`,
[ErrorCodes.X_V_BIND_INVALID_SAME_NAME_ARGUMENT]: `v-bind with same-name shorthand only allows static argument.`,
[ErrorCodes.X_V_ON_NO_EXPRESSION]: `v-on is missing expression.`,
[ErrorCodes.X_V_SLOT_UNEXPECTED_DIRECTIVE_ON_SLOT_OUTLET]: `Unexpected custom directive on <slot> outlet.`,
[ErrorCodes.X_V_SLOT_MIXED_SLOT_USAGE]:
`Mixed v-slot usage on both the component and nested <template>. ` +
`When there are multiple named slots, all slots should use <template> ` +
`syntax to avoid scope ambiguity.`,
[ErrorCodes.X_V_SLOT_DUPLICATE_SLOT_NAMES]: `Duplicate slot names found. `,
[ErrorCodes.X_V_SLOT_EXTRANEOUS_DEFAULT_SLOT_CHILDREN]:
`Extraneous children found when component already has explicitly named ` +
`default slot. These children will be ignored.`,
[ErrorCodes.X_V_SLOT_MISPLACED]: `v-slot can only be used on components or <template> tags.`,
[ErrorCodes.X_V_MODEL_NO_EXPRESSION]: `v-model is missing expression.`,
[ErrorCodes.X_V_MODEL_MALFORMED_EXPRESSION]: `v-model value must be a valid JavaScript member expression.`,
[ErrorCodes.X_V_MODEL_ON_SCOPE_VARIABLE]: `v-model cannot be used on v-for or v-slot scope variables because they are not writable.`,
[ErrorCodes.X_V_MODEL_ON_PROPS]: `v-model cannot be used on a prop, because local prop bindings are not writable.\nUse a v-bind binding combined with a v-on listener that emits update:x event instead.`,
[ErrorCodes.X_INVALID_EXPRESSION]: `Error parsing JavaScript expression: `,
[ErrorCodes.X_KEEP_ALIVE_INVALID_CHILDREN]: `<KeepAlive> expects exactly one child component.`,
[ErrorCodes.X_VNODE_HOOKS]: `@vnode-* hooks in templates are no longer supported. Use the vue: prefix instead. For example, @vnode-mounted should be changed to @vue:mounted. @vnode-* hooks support has been removed in 3.4.`,
// generic errors
[ErrorCodes.X_PREFIX_ID_NOT_SUPPORTED]: `"prefixIdentifiers" option is not supported in this build of compiler.`,
[ErrorCodes.X_MODULE_MODE_NOT_SUPPORTED]: `ES module mode is not supported in this build of compiler.`,
[ErrorCodes.X_CACHE_HANDLER_NOT_SUPPORTED]: `"cacheHandlers" option is only supported when the "prefixIdentifiers" option is enabled.`,
[ErrorCodes.X_SCOPE_ID_NOT_SUPPORTED]: `"scopeId" option is only supported in module mode.`,
// just to fulfill types
[ErrorCodes.__EXTEND_POINT__]: ``,
}
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