@angular/compiler
Version:
Angular - the compiler library
284 lines • 36.1 kB
JavaScript
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
export class Text {
constructor(value, sourceSpan) {
this.value = value;
this.sourceSpan = sourceSpan;
}
visit(visitor) {
return visitor.visitText(this);
}
}
export class BoundText {
constructor(value, sourceSpan, i18n) {
this.value = value;
this.sourceSpan = sourceSpan;
this.i18n = i18n;
}
visit(visitor) {
return visitor.visitBoundText(this);
}
}
export class TextAttribute {
constructor(name, value, sourceSpan, valueSpan, i18n) {
this.name = name;
this.value = value;
this.sourceSpan = sourceSpan;
this.valueSpan = valueSpan;
this.i18n = i18n;
}
visit(visitor) {
return visitor.visitTextAttribute(this);
}
}
export class BoundAttribute {
constructor(name, type, securityContext, value, unit, sourceSpan, keySpan, valueSpan, i18n) {
this.name = name;
this.type = type;
this.securityContext = securityContext;
this.value = value;
this.unit = unit;
this.sourceSpan = sourceSpan;
this.keySpan = keySpan;
this.valueSpan = valueSpan;
this.i18n = i18n;
}
static fromBoundElementProperty(prop, i18n) {
if (prop.keySpan === undefined) {
throw new Error(`Unexpected state: keySpan must be defined for bound attributes but was not for ${prop.name}: ${prop.sourceSpan}`);
}
return new BoundAttribute(prop.name, prop.type, prop.securityContext, prop.value, prop.unit, prop.sourceSpan, prop.keySpan, prop.valueSpan, i18n);
}
visit(visitor) {
return visitor.visitBoundAttribute(this);
}
}
export class BoundEvent {
constructor(name, type, handler, target, phase, sourceSpan, handlerSpan) {
this.name = name;
this.type = type;
this.handler = handler;
this.target = target;
this.phase = phase;
this.sourceSpan = sourceSpan;
this.handlerSpan = handlerSpan;
}
static fromParsedEvent(event) {
const target = event.type === 0 /* Regular */ ? event.targetOrPhase : null;
const phase = event.type === 1 /* Animation */ ? event.targetOrPhase : null;
return new BoundEvent(event.name, event.type, event.handler, target, phase, event.sourceSpan, event.handlerSpan);
}
visit(visitor) {
return visitor.visitBoundEvent(this);
}
}
export class Element {
constructor(name, attributes, inputs, outputs, children, references, sourceSpan, startSourceSpan, endSourceSpan, i18n) {
this.name = name;
this.attributes = attributes;
this.inputs = inputs;
this.outputs = outputs;
this.children = children;
this.references = references;
this.sourceSpan = sourceSpan;
this.startSourceSpan = startSourceSpan;
this.endSourceSpan = endSourceSpan;
this.i18n = i18n;
}
visit(visitor) {
return visitor.visitElement(this);
}
}
export class Template {
constructor(tagName, attributes, inputs, outputs, templateAttrs, children, references, variables, sourceSpan, startSourceSpan, endSourceSpan, i18n) {
this.tagName = tagName;
this.attributes = attributes;
this.inputs = inputs;
this.outputs = outputs;
this.templateAttrs = templateAttrs;
this.children = children;
this.references = references;
this.variables = variables;
this.sourceSpan = sourceSpan;
this.startSourceSpan = startSourceSpan;
this.endSourceSpan = endSourceSpan;
this.i18n = i18n;
}
visit(visitor) {
return visitor.visitTemplate(this);
}
}
export class Content {
constructor(selector, attributes, sourceSpan, i18n) {
this.selector = selector;
this.attributes = attributes;
this.sourceSpan = sourceSpan;
this.i18n = i18n;
this.name = 'ng-content';
}
visit(visitor) {
return visitor.visitContent(this);
}
}
export class Variable {
constructor(name, value, sourceSpan, keySpan, valueSpan) {
this.name = name;
this.value = value;
this.sourceSpan = sourceSpan;
this.keySpan = keySpan;
this.valueSpan = valueSpan;
}
visit(visitor) {
return visitor.visitVariable(this);
}
}
export class Reference {
constructor(name, value, sourceSpan, valueSpan) {
this.name = name;
this.value = value;
this.sourceSpan = sourceSpan;
this.valueSpan = valueSpan;
}
visit(visitor) {
return visitor.visitReference(this);
}
}
export class Icu {
constructor(vars, placeholders, sourceSpan, i18n) {
this.vars = vars;
this.placeholders = placeholders;
this.sourceSpan = sourceSpan;
this.i18n = i18n;
}
visit(visitor) {
return visitor.visitIcu(this);
}
}
export class NullVisitor {
visitElement(element) { }
visitTemplate(template) { }
visitContent(content) { }
visitVariable(variable) { }
visitReference(reference) { }
visitTextAttribute(attribute) { }
visitBoundAttribute(attribute) { }
visitBoundEvent(attribute) { }
visitText(text) { }
visitBoundText(text) { }
visitIcu(icu) { }
}
export class RecursiveVisitor {
visitElement(element) {
visitAll(this, element.attributes);
visitAll(this, element.children);
visitAll(this, element.references);
}
visitTemplate(template) {
visitAll(this, template.attributes);
visitAll(this, template.children);
visitAll(this, template.references);
visitAll(this, template.variables);
}
visitContent(content) { }
visitVariable(variable) { }
visitReference(reference) { }
visitTextAttribute(attribute) { }
visitBoundAttribute(attribute) { }
visitBoundEvent(attribute) { }
visitText(text) { }
visitBoundText(text) { }
visitIcu(icu) { }
}
export class TransformVisitor {
visitElement(element) {
const newAttributes = transformAll(this, element.attributes);
const newInputs = transformAll(this, element.inputs);
const newOutputs = transformAll(this, element.outputs);
const newChildren = transformAll(this, element.children);
const newReferences = transformAll(this, element.references);
if (newAttributes != element.attributes || newInputs != element.inputs ||
newOutputs != element.outputs || newChildren != element.children ||
newReferences != element.references) {
return new Element(element.name, newAttributes, newInputs, newOutputs, newChildren, newReferences, element.sourceSpan, element.startSourceSpan, element.endSourceSpan);
}
return element;
}
visitTemplate(template) {
const newAttributes = transformAll(this, template.attributes);
const newInputs = transformAll(this, template.inputs);
const newOutputs = transformAll(this, template.outputs);
const newTemplateAttrs = transformAll(this, template.templateAttrs);
const newChildren = transformAll(this, template.children);
const newReferences = transformAll(this, template.references);
const newVariables = transformAll(this, template.variables);
if (newAttributes != template.attributes || newInputs != template.inputs ||
newOutputs != template.outputs || newTemplateAttrs != template.templateAttrs ||
newChildren != template.children || newReferences != template.references ||
newVariables != template.variables) {
return new Template(template.tagName, newAttributes, newInputs, newOutputs, newTemplateAttrs, newChildren, newReferences, newVariables, template.sourceSpan, template.startSourceSpan, template.endSourceSpan);
}
return template;
}
visitContent(content) {
return content;
}
visitVariable(variable) {
return variable;
}
visitReference(reference) {
return reference;
}
visitTextAttribute(attribute) {
return attribute;
}
visitBoundAttribute(attribute) {
return attribute;
}
visitBoundEvent(attribute) {
return attribute;
}
visitText(text) {
return text;
}
visitBoundText(text) {
return text;
}
visitIcu(icu) {
return icu;
}
}
export function visitAll(visitor, nodes) {
const result = [];
if (visitor.visit) {
for (const node of nodes) {
const newNode = visitor.visit(node) || node.visit(visitor);
}
}
else {
for (const node of nodes) {
const newNode = node.visit(visitor);
if (newNode) {
result.push(newNode);
}
}
}
return result;
}
export function transformAll(visitor, nodes) {
const result = [];
let changed = false;
for (const node of nodes) {
const newNode = node.visit(visitor);
if (newNode) {
result.push(newNode);
}
changed = changed || newNode != node;
}
return changed ? result : nodes;
}
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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {SecurityContext} from '../core';\nimport {AST, BindingType, BoundElementProperty, ParsedEvent, ParsedEventType} from '../expression_parser/ast';\nimport {I18nMeta} from '../i18n/i18n_ast';\nimport {ParseSourceSpan} from '../parse_util';\n\nexport interface Node {\n  sourceSpan: ParseSourceSpan;\n  visit<Result>(visitor: Visitor<Result>): Result;\n}\n\nexport class Text implements Node {\n  constructor(public value: string, public sourceSpan: ParseSourceSpan) {}\n  visit<Result>(visitor: Visitor<Result>): Result {\n    return visitor.visitText(this);\n  }\n}\n\nexport class BoundText implements Node {\n  constructor(public value: AST, public sourceSpan: ParseSourceSpan, public i18n?: I18nMeta) {}\n  visit<Result>(visitor: Visitor<Result>): Result {\n    return visitor.visitBoundText(this);\n  }\n}\n\nexport class TextAttribute implements Node {\n  constructor(\n      public name: string, public value: string, public sourceSpan: ParseSourceSpan,\n      public valueSpan?: ParseSourceSpan, public i18n?: I18nMeta) {}\n  visit<Result>(visitor: Visitor<Result>): Result {\n    return visitor.visitTextAttribute(this);\n  }\n}\n\nexport class BoundAttribute implements Node {\n  constructor(\n      public name: string, public type: BindingType, public securityContext: SecurityContext,\n      public value: AST, public unit: string|null, public sourceSpan: ParseSourceSpan,\n      readonly keySpan: ParseSourceSpan, public valueSpan: ParseSourceSpan|undefined,\n      public i18n: I18nMeta|undefined) {}\n\n  static fromBoundElementProperty(prop: BoundElementProperty, i18n?: I18nMeta): BoundAttribute {\n    if (prop.keySpan === undefined) {\n      throw new Error(\n          `Unexpected state: keySpan must be defined for bound attributes but was not for ${\n              prop.name}: ${prop.sourceSpan}`);\n    }\n    return new BoundAttribute(\n        prop.name, prop.type, prop.securityContext, prop.value, prop.unit, prop.sourceSpan,\n        prop.keySpan, prop.valueSpan, i18n);\n  }\n\n  visit<Result>(visitor: Visitor<Result>): Result {\n    return visitor.visitBoundAttribute(this);\n  }\n}\n\nexport class BoundEvent implements Node {\n  constructor(\n      public name: string, public type: ParsedEventType, public handler: AST,\n      public target: string|null, public phase: string|null, public sourceSpan: ParseSourceSpan,\n      public handlerSpan: ParseSourceSpan) {}\n\n  static fromParsedEvent(event: ParsedEvent) {\n    const target: string|null = event.type === ParsedEventType.Regular ? event.targetOrPhase : null;\n    const phase: string|null =\n        event.type === ParsedEventType.Animation ? event.targetOrPhase : null;\n    return new BoundEvent(\n        event.name, event.type, event.handler, target, phase, event.sourceSpan, event.handlerSpan);\n  }\n\n  visit<Result>(visitor: Visitor<Result>): Result {\n    return visitor.visitBoundEvent(this);\n  }\n}\n\nexport class Element implements Node {\n  constructor(\n      public name: string, public attributes: TextAttribute[], public inputs: BoundAttribute[],\n      public outputs: BoundEvent[], public children: Node[], public references: Reference[],\n      public sourceSpan: ParseSourceSpan, public startSourceSpan: ParseSourceSpan,\n      public endSourceSpan: ParseSourceSpan|null, public i18n?: I18nMeta) {}\n  visit<Result>(visitor: Visitor<Result>): Result {\n    return visitor.visitElement(this);\n  }\n}\n\nexport class Template implements Node {\n  constructor(\n      public tagName: string, public attributes: TextAttribute[], public inputs: BoundAttribute[],\n      public outputs: BoundEvent[], public templateAttrs: (BoundAttribute|TextAttribute)[],\n      public children: Node[], public references: Reference[], public variables: Variable[],\n      public sourceSpan: ParseSourceSpan, public startSourceSpan: ParseSourceSpan,\n      public endSourceSpan: ParseSourceSpan|null, public i18n?: I18nMeta) {}\n  visit<Result>(visitor: Visitor<Result>): Result {\n    return visitor.visitTemplate(this);\n  }\n}\n\nexport class Content implements Node {\n  readonly name = 'ng-content';\n\n  constructor(\n      public selector: string, public attributes: TextAttribute[],\n      public sourceSpan: ParseSourceSpan, public i18n?: I18nMeta) {}\n  visit<Result>(visitor: Visitor<Result>): Result {\n    return visitor.visitContent(this);\n  }\n}\n\nexport class Variable implements Node {\n  constructor(\n      public name: string, public value: string, public sourceSpan: ParseSourceSpan,\n      readonly keySpan: ParseSourceSpan, public valueSpan?: ParseSourceSpan) {}\n  visit<Result>(visitor: Visitor<Result>): Result {\n    return visitor.visitVariable(this);\n  }\n}\n\nexport class Reference implements Node {\n  constructor(\n      public name: string, public value: string, public sourceSpan: ParseSourceSpan,\n      public valueSpan?: ParseSourceSpan) {}\n  visit<Result>(visitor: Visitor<Result>): Result {\n    return visitor.visitReference(this);\n  }\n}\n\nexport class Icu implements Node {\n  constructor(\n      public vars: {[name: string]: BoundText},\n      public placeholders: {[name: string]: Text|BoundText}, public sourceSpan: ParseSourceSpan,\n      public i18n?: I18nMeta) {}\n  visit<Result>(visitor: Visitor<Result>): Result {\n    return visitor.visitIcu(this);\n  }\n}\n\nexport interface Visitor<Result = any> {\n  // Returning a truthy value from `visit()` will prevent `visitAll()` from the call to the typed\n  // method and result returned will become the result included in `visitAll()`s result array.\n  visit?(node: Node): Result;\n\n  visitElement(element: Element): Result;\n  visitTemplate(template: Template): Result;\n  visitContent(content: Content): Result;\n  visitVariable(variable: Variable): Result;\n  visitReference(reference: Reference): Result;\n  visitTextAttribute(attribute: TextAttribute): Result;\n  visitBoundAttribute(attribute: BoundAttribute): Result;\n  visitBoundEvent(attribute: BoundEvent): Result;\n  visitText(text: Text): Result;\n  visitBoundText(text: BoundText): Result;\n  visitIcu(icu: Icu): Result;\n}\n\nexport class NullVisitor implements Visitor<void> {\n  visitElement(element: Element): void {}\n  visitTemplate(template: Template): void {}\n  visitContent(content: Content): void {}\n  visitVariable(variable: Variable): void {}\n  visitReference(reference: Reference): void {}\n  visitTextAttribute(attribute: TextAttribute): void {}\n  visitBoundAttribute(attribute: BoundAttribute): void {}\n  visitBoundEvent(attribute: BoundEvent): void {}\n  visitText(text: Text): void {}\n  visitBoundText(text: BoundText): void {}\n  visitIcu(icu: Icu): void {}\n}\n\nexport class RecursiveVisitor implements Visitor<void> {\n  visitElement(element: Element): void {\n    visitAll(this, element.attributes);\n    visitAll(this, element.children);\n    visitAll(this, element.references);\n  }\n  visitTemplate(template: Template): void {\n    visitAll(this, template.attributes);\n    visitAll(this, template.children);\n    visitAll(this, template.references);\n    visitAll(this, template.variables);\n  }\n  visitContent(content: Content): void {}\n  visitVariable(variable: Variable): void {}\n  visitReference(reference: Reference): void {}\n  visitTextAttribute(attribute: TextAttribute): void {}\n  visitBoundAttribute(attribute: BoundAttribute): void {}\n  visitBoundEvent(attribute: BoundEvent): void {}\n  visitText(text: Text): void {}\n  visitBoundText(text: BoundText): void {}\n  visitIcu(icu: Icu): void {}\n}\n\nexport class TransformVisitor implements Visitor<Node> {\n  visitElement(element: Element): Node {\n    const newAttributes = transformAll(this, element.attributes);\n    const newInputs = transformAll(this, element.inputs);\n    const newOutputs = transformAll(this, element.outputs);\n    const newChildren = transformAll(this, element.children);\n    const newReferences = transformAll(this, element.references);\n    if (newAttributes != element.attributes || newInputs != element.inputs ||\n        newOutputs != element.outputs || newChildren != element.children ||\n        newReferences != element.references) {\n      return new Element(\n          element.name, newAttributes, newInputs, newOutputs, newChildren, newReferences,\n          element.sourceSpan, element.startSourceSpan, element.endSourceSpan);\n    }\n    return element;\n  }\n\n  visitTemplate(template: Template): Node {\n    const newAttributes = transformAll(this, template.attributes);\n    const newInputs = transformAll(this, template.inputs);\n    const newOutputs = transformAll(this, template.outputs);\n    const newTemplateAttrs = transformAll(this, template.templateAttrs);\n    const newChildren = transformAll(this, template.children);\n    const newReferences = transformAll(this, template.references);\n    const newVariables = transformAll(this, template.variables);\n    if (newAttributes != template.attributes || newInputs != template.inputs ||\n        newOutputs != template.outputs || newTemplateAttrs != template.templateAttrs ||\n        newChildren != template.children || newReferences != template.references ||\n        newVariables != template.variables) {\n      return new Template(\n          template.tagName, newAttributes, newInputs, newOutputs, newTemplateAttrs, newChildren,\n          newReferences, newVariables, template.sourceSpan, template.startSourceSpan,\n          template.endSourceSpan);\n    }\n    return template;\n  }\n\n  visitContent(content: Content): Node {\n    return content;\n  }\n\n  visitVariable(variable: Variable): Node {\n    return variable;\n  }\n  visitReference(reference: Reference): Node {\n    return reference;\n  }\n  visitTextAttribute(attribute: TextAttribute): Node {\n    return attribute;\n  }\n  visitBoundAttribute(attribute: BoundAttribute): Node {\n    return attribute;\n  }\n  visitBoundEvent(attribute: BoundEvent): Node {\n    return attribute;\n  }\n  visitText(text: Text): Node {\n    return text;\n  }\n  visitBoundText(text: BoundText): Node {\n    return text;\n  }\n  visitIcu(icu: Icu): Node {\n    return icu;\n  }\n}\n\nexport function visitAll<Result>(visitor: Visitor<Result>, nodes: Node[]): Result[] {\n  const result: Result[] = [];\n  if (visitor.visit) {\n    for (const node of nodes) {\n      const newNode = visitor.visit(node) || node.visit(visitor);\n    }\n  } else {\n    for (const node of nodes) {\n      const newNode = node.visit(visitor);\n      if (newNode) {\n        result.push(newNode);\n      }\n    }\n  }\n  return result;\n}\n\nexport function transformAll<Result extends Node>(\n    visitor: Visitor<Node>, nodes: Result[]): Result[] {\n  const result: Result[] = [];\n  let changed = false;\n  for (const node of nodes) {\n    const newNode = node.visit(visitor);\n    if (newNode) {\n      result.push(newNode as Result);\n    }\n    changed = changed || newNode != node;\n  }\n  return changed ? result : nodes;\n}\n"]}