Class ExpressionSourceHumanizer

packages/compiler/test/render3/util/expression.ts:16–261

type HumanizedExpressionSource = [string, AbsoluteSourceSpan];
class ExpressionSourceHumanizer extends e.RecursiveAstVisitor implements t.Visitor {
  result: HumanizedExpressionSource[] = [];

  private recordAst(ast: e.AST) {
    this.result.push([unparse(ast), ast.sourceSpan]);
  }

  // This method is defined to reconcile the type of ExpressionSourceHumanizer
  // since both RecursiveAstVisitor and Visitor define the visit() method in
  // their interfaces.
  override visit(node: e.AST | t.Node, context?: any) {
    if (node instanceof e.AST) {
      node.visit(this, context);
    } else {
      node.visit(this);
    }
  }

  visitASTWithSource(ast: e.ASTWithSource) {
    this.recordAst(ast);
    this.visitAll([ast.ast], null);
  }
  override visitBinary(ast: e.Binary) {
    this.recordAst(ast);
    super.visitBinary(ast, null);
  }
  override visitChain(ast: e.Chain) {
    this.recordAst(ast);
    super.visitChain(ast, null);
  }
  override visitConditional(ast: e.Conditional) {
    this.recordAst(ast);
    super.visitConditional(ast, null);
  }
  override visitImplicitReceiver(ast: e.ImplicitReceiver) {
    this.recordAst(ast);
    super.visitImplicitReceiver(ast, null);
  }
  override visitInterpolation(ast: e.Interpolation) {
    this.recordAst(ast);
    super.visitInterpolation(ast, null);
  }
  override visitKeyedRead(ast: e.KeyedRead) {
    this.recordAst(ast);
    super.visitKeyedRead(ast, null);
  }
  override visitLiteralPrimitive(ast: e.LiteralPrimitive) {
    this.recordAst(ast);
    super.visitLiteralPrimitive(ast, null);
  }
  override visitLiteralArray(ast: e.LiteralArray) {
    this.recordAst(ast);
    super.visitLiteralArray(ast, null);
  }
  override visitLiteralMap(ast: e.LiteralMap) {
    this.recordAst(ast);
    super.visitLiteralMap(ast, null);
  }