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/*
* Copyright (c) 2018, salesforce.com, inc.
* All rights reserved.
* SPDX-License-Identifier: MIT
* For full license text, see the LICENSE file in the repo root or https://opensource.org/licenses/MIT
*/
import { HTML_NAMESPACE } from '@lwc/shared';
import { Token as parse5TokenInfo } from 'parse5';
import {
Literal,
SourceLocation,
Element,
ExternalComponent,
Component,
Expression,
ComplexExpression,
Comment,
Text,
ForEach,
ForBlock,
Slot,
Identifier,
Root,
EventListener,
KeyDirective,
DynamicDirective,
DomDirective,
PreserveCommentsDirective,
RenderModeDirective,
Attribute,
Property,
ParentNode,
BaseNode,
ForOf,
LWCDirectiveRenderMode,
If,
IfBlock,
ElseBlock,
ElseifBlock,
ElementSourceLocation,
InnerHTMLDirective,
BaseElement,
LWCDirectiveDomMode,
RefDirective,
SpreadDirective,
ElementDirective,
RootDirective,
SlotBindDirective,
ScopedSlotFragment,
SlotDataDirective,
IsDirective,
LwcComponent,
LwcTagName,
BaseLwcElement,
} from './types';
export function root(parse5ElmLocation: parse5TokenInfo.ElementLocation): Root {
return {
type: 'Root',
location: elementSourceLocation(parse5ElmLocation),
directives: [],
children: [],
};
}
export function element(
tagName: string,
namespaceURI: string,
parse5ElmLocation: parse5TokenInfo.ElementLocation
): Element {
return {
type: 'Element',
name: tagName,
namespace: namespaceURI,
location: elementSourceLocation(parse5ElmLocation),
attributes: [],
properties: [],
directives: [],
listeners: [],
children: [],
};
}
export function externalComponent(
tagName: string,
parse5ElmLocation: parse5TokenInfo.ElementLocation
): ExternalComponent {
return {
type: 'ExternalComponent',
name: tagName,
namespace: HTML_NAMESPACE,
location: elementSourceLocation(parse5ElmLocation),
attributes: [],
properties: [],
directives: [],
listeners: [],
children: [],
};
}
export function component(
tagName: string,
parse5ElmLocation: parse5TokenInfo.ElementLocation
): Component {
return {
type: 'Component',
name: tagName,
namespace: HTML_NAMESPACE,
location: elementSourceLocation(parse5ElmLocation),
attributes: [],
properties: [],
directives: [],
listeners: [],
children: [],
};
}
export function lwcComponent(
tagName: LwcTagName,
parse5ElmLocation: parse5TokenInfo.ElementLocation
): LwcComponent {
return {
type: 'Lwc',
name: tagName,
namespace: HTML_NAMESPACE,
location: elementSourceLocation(parse5ElmLocation),
attributes: [],
properties: [],
directives: [],
listeners: [],
children: [],
};
}
export function slot(slotName: string, parse5ElmLocation: parse5TokenInfo.ElementLocation): Slot {
return {
type: 'Slot',
name: 'slot',
namespace: HTML_NAMESPACE,
slotName,
location: elementSourceLocation(parse5ElmLocation),
attributes: [],
properties: [],
directives: [],
listeners: [],
children: [],
};
}
export function text(
raw: string,
// TODO [#3370]: remove experimental template expression flag
value: Literal | Expression | ComplexExpression,
parse5Location: parse5TokenInfo.Location
): Text {
return {
type: 'Text',
raw,
value,
location: sourceLocation(parse5Location),
};
}
export function comment(
raw: string,
value: string,
parse5Location: parse5TokenInfo.Location
): Comment {
return {
type: 'Comment',
raw,
value,
location: sourceLocation(parse5Location),
};
}
export function elementSourceLocation(
parse5ElmLocation: parse5TokenInfo.ElementLocation
): ElementSourceLocation {
const elementLocation = sourceLocation(parse5ElmLocation);
const startTag = sourceLocation(parse5ElmLocation.startTag!);
// endTag must be optional because Parse5 currently fails to collect end tag location for element with a tag name
// containing an upper case character (inikulin/parse5#352).
const endTag = parse5ElmLocation.endTag
? sourceLocation(parse5ElmLocation.endTag)
: parse5ElmLocation.endTag;
return { ...elementLocation, startTag, endTag: endTag! };
}
export function sourceLocation(location: parse5TokenInfo.Location): SourceLocation {
return {
startLine: location.startLine,
startColumn: location.startCol,
endLine: location.endLine,
endColumn: location.endCol,
start: location.startOffset,
end: location.endOffset,
};
}
export function literal<T extends string | boolean>(value: T): Literal<T> {
return {
type: 'Literal',
value,
};
}
export function forEach(
expression: Expression,
elementLocation: SourceLocation,
directiveLocation: SourceLocation,
item: Identifier,
index?: Identifier
): ForEach {
return {
type: 'ForEach',
expression,
item,
index,
location: elementLocation,
directiveLocation,
children: [],
};
}
export function forOf(
expression: Expression,
iterator: Identifier,
elementLocation: SourceLocation,
directiveLocation: SourceLocation
): ForOf {
return {
type: 'ForOf',
expression,
iterator,
location: elementLocation,
directiveLocation,
children: [],
};
}
export function scopedSlotFragment(
identifier: Identifier,
elementLocation: SourceLocation,
directiveLocation: SourceLocation,
slotName: Literal | Expression
): ScopedSlotFragment {
return {
type: 'ScopedSlotFragment',
location: elementLocation,
directiveLocation,
children: [],
slotData: slotDataDirective(identifier, directiveLocation),
slotName: slotName,
};
}
export function ifNode(
modifier: string,
condition: Expression,
elementLocation: SourceLocation,
directiveLocation: SourceLocation
): If {
return {
type: 'If',
modifier,
condition,
location: elementLocation,
directiveLocation,
children: [],
};
}
export function ifBlockNode(
condition: Expression,
elementLocation: SourceLocation,
directiveLocation: SourceLocation
): IfBlock {
return {
type: 'IfBlock',
condition,
location: elementLocation,
directiveLocation,
children: [],
};
}
export function elseifBlockNode(
condition: Expression,
elementLocation: SourceLocation,
directiveLocation: SourceLocation
): ElseifBlock {
return {
type: 'ElseifBlock',
condition,
location: elementLocation,
directiveLocation,
children: [],
};
}
export function elseBlockNode(
elementLocation: SourceLocation,
directiveLocation: SourceLocation
): ElseBlock {
return {
type: 'ElseBlock',
location: elementLocation,
directiveLocation,
children: [],
};
}
export function eventListener(
name: string,
handler: Expression,
location: SourceLocation
): EventListener {
return {
type: 'EventListener',
name,
handler,
location,
};
}
export function keyDirective(value: Expression, location: SourceLocation): KeyDirective {
return {
type: 'Directive',
name: 'Key',
value,
location,
};
}
export function dynamicDirective(value: Expression, location: SourceLocation): DynamicDirective {
return {
type: 'Directive',
name: 'Dynamic',
value,
location,
};
}
export function lwcIsDirective(value: Expression, location: SourceLocation): IsDirective {
return {
type: 'Directive',
name: 'Is',
value,
location,
};
}
export function spreadDirective(value: Expression, location: SourceLocation): SpreadDirective {
return {
type: 'Directive',
name: 'Spread',
value,
location,
};
}
export function slotBindDirective(value: Expression, location: SourceLocation): SlotBindDirective {
return {
type: 'Directive',
name: 'SlotBind',
value,
location,
};
}
export function slotDataDirective(value: Identifier, location: SourceLocation): SlotDataDirective {
return {
type: 'Directive',
name: 'SlotData',
value,
location,
};
}
export function domDirective(
lwcDomAttr: LWCDirectiveDomMode,
location: SourceLocation
): DomDirective {
return {
type: 'Directive',
name: 'Dom',
value: literal(lwcDomAttr),
location,
};
}
export function innerHTMLDirective(
value: Expression | Literal<string>,
location: SourceLocation
): InnerHTMLDirective {
return {
type: 'Directive',
name: 'InnerHTML',
value,
location,
};
}
export function refDirective(value: Literal<string>, location: SourceLocation): RefDirective {
return {
type: 'Directive',
name: 'Ref',
value,
location,
};
}
export function preserveCommentsDirective(
preserveComments: boolean,
location: SourceLocation
): PreserveCommentsDirective {
return {
type: 'Directive',
name: 'PreserveComments',
value: literal(preserveComments),
location,
};
}
export function renderModeDirective(
renderMode: LWCDirectiveRenderMode,
location: SourceLocation
): RenderModeDirective {
return {
type: 'Directive',
name: 'RenderMode',
value: literal(renderMode),
location,
};
}
export function attribute(
name: string,
value: Expression | Literal,
location: SourceLocation
): Attribute {
return {
type: 'Attribute',
name,
value,
location,
};
}
export function property(
name: string,
attributeName: string,
value: Expression | Literal,
location: SourceLocation
): Property {
return {
type: 'Property',
name,
attributeName,
value,
location,
};
}
export function isElement(node: BaseNode): node is Element {
return node.type === 'Element';
}
export function isRoot(node: BaseNode): node is Root {
return node.type === 'Root';
}
export function isExternalComponent(node: BaseNode): node is ExternalComponent {
return node.type === 'ExternalComponent';
}
export function isComponent(node: BaseNode): node is Component {
return node.type === 'Component';
}
export function isSlot(node: BaseNode): node is Slot {
return node.type === 'Slot';
}
export function isBaseElement(node: BaseNode): node is BaseElement {
return (
isElement(node) ||
isComponent(node) ||
isSlot(node) ||
isExternalComponent(node) ||
isLwcComponent(node)
);
}
// BaseLwcElement represents special LWC tags denoted lwc:*
export function isBaseLwcElement(node: BaseNode): node is BaseLwcElement<LwcTagName> {
return node.type === 'Lwc';
}
// Represents the lwc:component tag
export function isLwcComponent(node: BaseNode): node is LwcComponent {
return isBaseLwcElement(node) && node.name === 'lwc:component';
}
export function isText(node: BaseNode): node is Text {
return node.type === 'Text';
}
export function isComment(node: BaseNode): node is Comment {
return node.type === 'Comment';
}
export function isExpression(node: BaseNode | Literal): node is Expression {
return node.type !== 'Literal';
}
export function isStringLiteral(
node: Expression | Literal | ComplexExpression
): node is Literal<string> {
return node.type === 'Literal' && typeof node.value === 'string';
}
export function isBooleanLiteral(node: Expression | Literal): node is Literal<boolean> {
return node.type === 'Literal' && typeof node.value === 'boolean';
}
export function isForOf(node: BaseNode): node is ForOf {
return node.type === 'ForOf';
}
export function isForEach(node: BaseNode): node is ForEach {
return node.type === 'ForEach';
}
export function isForBlock(node: BaseNode): node is ForBlock {
return isForOf(node) || isForEach(node);
}
export function isIf(node: BaseNode): node is If {
return node.type === 'If';
}
export function isIfBlock(node: BaseNode): node is IfBlock {
return node.type === 'IfBlock';
}
export function isElseifBlock(node: BaseNode): node is ElseifBlock {
return node.type === 'ElseifBlock';
}
export function isElseBlock(node: BaseNode): node is ElseBlock {
return node.type === 'ElseBlock';
}
export function isConditionalParentBlock(node: BaseNode): node is IfBlock | ElseifBlock {
return isIfBlock(node) || isElseifBlock(node);
}
export function isConditionalBlock(node: BaseNode): node is IfBlock | ElseifBlock | ElseBlock {
return isIfBlock(node) || isElseifBlock(node) || isElseBlock(node);
}
export function isElementDirective(
node: BaseNode
): node is IfBlock | ElseifBlock | ElseBlock | ForBlock | If | ScopedSlotFragment {
return isConditionalBlock(node) || isForBlock(node) || isIf(node) || isScopedSlotFragment(node);
}
export function isParentNode(node: BaseNode): node is ParentNode {
return isBaseElement(node) || isRoot(node) || isForBlock(node) || isIf(node);
}
export function isDynamicDirective(directive: ElementDirective): directive is DynamicDirective {
return directive.name === 'Dynamic';
}
export function isLwcIsDirective(directive: ElementDirective): directive is IsDirective {
return directive.name === 'Is';
}
export function isDomDirective(directive: ElementDirective): directive is DomDirective {
return directive.name === 'Dom';
}
export function isSpreadDirective(directive: ElementDirective): directive is SpreadDirective {
return directive.name === 'Spread';
}
export function isInnerHTMLDirective(directive: ElementDirective): directive is InnerHTMLDirective {
return directive.name === 'InnerHTML';
}
export function isRefDirective(directive: ElementDirective): directive is RefDirective {
return directive.name === 'Ref';
}
export function isKeyDirective(directive: ElementDirective): directive is KeyDirective {
return directive.name === 'Key';
}
export function isSlotDataDirective(directive: ElementDirective): directive is SlotDataDirective {
return directive.name === 'SlotData';
}
export function isSlotBindDirective(directive: ElementDirective): directive is SlotBindDirective {
return directive.name === 'SlotBind';
}
export function isRenderModeDirective(directive: RootDirective): directive is RenderModeDirective {
return directive.name === 'RenderMode';
}
export function isPreserveCommentsDirective(
directive: RootDirective
): directive is PreserveCommentsDirective {
return directive.name === 'PreserveComments';
}
export function isProperty(node: BaseNode): node is Property {
return node.type === 'Property';
}
export function isScopedSlotFragment(node: BaseNode): node is ScopedSlotFragment {
return node.type === 'ScopedSlotFragment';
}
export function isAttribute(node: BaseNode): node is Attribute {
return node.type === 'Attribute';
}