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@glimmer/compiler

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"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.convertPathToCallIfKeyword = convertPathToCallIfKeyword; exports.VISIT_EXPRS = exports.NormalizeExpressions = void 0; var _syntax = require("@glimmer/syntax"); var _util = require("@glimmer/util"); var _result = require("../../../shared/result"); var mir = _interopRequireWildcard(require("../../2-encoding/mir")); var _keywords = require("../keywords"); var _isNode = require("../utils/is-node"); function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; } function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; } class NormalizeExpressions { visit(node, state) { switch (node.type) { case 'Literal': return (0, _result.Ok)(this.Literal(node)); case 'Interpolate': return this.Interpolate(node, state); case 'Path': return this.PathExpression(node); case 'Call': let translated = _keywords.CALL_KEYWORDS.translate(node, state); if (translated !== null) { return translated; } return this.CallExpression(node, state); case 'DeprecatedCall': return this.DeprecaedCallExpression(node, state); } } visitList(nodes, state) { return new _result.ResultArray(nodes.map(e => VISIT_EXPRS.visit(e, state))).toOptionalList(); } /** * Normalize paths into `hir.Path` or a `hir.Expr` that corresponds to the ref. * * TODO since keywords don't support tails anyway, distinguish PathExpression from * VariableReference in ASTv2. */ PathExpression(path) { let ref = this.VariableReference(path.ref); let { tail } = path; if ((0, _util.isPresent)(tail)) { let tailLoc = tail[0].loc.extend(tail[tail.length - 1].loc); return (0, _result.Ok)(new mir.PathExpression({ loc: path.loc, head: ref, tail: new mir.Tail({ loc: tailLoc, members: tail }) })); } else { return (0, _result.Ok)(ref); } } VariableReference(ref) { return ref; } Literal(literal) { return literal; } Interpolate(expr, state) { let parts = expr.parts.map(convertPathToCallIfKeyword); return VISIT_EXPRS.visitList(parts, state).mapOk(parts => new mir.InterpolateExpression({ loc: expr.loc, parts: parts })); } CallExpression(expr, state) { if (!(0, _isNode.hasPath)(expr)) { throw new Error(`unimplemented subexpression at the head of a subexpression`); } else { return _result.Result.all(VISIT_EXPRS.visit(expr.callee, state), VISIT_EXPRS.Args(expr.args, state)).mapOk(([callee, args]) => new mir.CallExpression({ loc: expr.loc, callee, args })); } } DeprecaedCallExpression({ arg, callee, loc }, _state) { return (0, _result.Ok)(new mir.DeprecatedCallExpression({ loc, arg, callee })); } Args({ positional, named, loc }, state) { return _result.Result.all(this.Positional(positional, state), this.NamedArguments(named, state)).mapOk(([positional, named]) => new mir.Args({ loc, positional, named })); } Positional(positional, state) { return VISIT_EXPRS.visitList(positional.exprs, state).mapOk(list => new mir.Positional({ loc: positional.loc, list })); } NamedArguments(named, state) { let pairs = named.entries.map(arg => { let value = convertPathToCallIfKeyword(arg.value); return VISIT_EXPRS.visit(value, state).mapOk(value => new mir.NamedArgument({ loc: arg.loc, key: arg.name, value })); }); return new _result.ResultArray(pairs).toOptionalList().mapOk(pairs => new mir.NamedArguments({ loc: named.loc, entries: pairs })); } } exports.NormalizeExpressions = NormalizeExpressions; function convertPathToCallIfKeyword(path) { if (path.type === 'Path' && path.ref.type === 'Free' && path.ref.name in _syntax.KEYWORDS_TYPES) { return new _syntax.ASTv2.CallExpression({ callee: path, args: _syntax.ASTv2.Args.empty(path.loc), loc: path.loc }); } return path; } const VISIT_EXPRS = new NormalizeExpressions(); exports.VISIT_EXPRS = VISIT_EXPRS; //# 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{ PresentArray } from '@glimmer/interfaces';\nimport { ASTv2, KEYWORDS_TYPES } from '@glimmer/syntax';\nimport { isPresent } from '@glimmer/util';\n\nimport { AnyOptionalList, PresentList } from '../../../shared/list';\nimport { Ok, Result, ResultArray } from '../../../shared/result';\nimport * as mir from '../../2-encoding/mir';\nimport { NormalizationState } from '../context';\nimport { CALL_KEYWORDS } from '../keywords';\nimport { hasPath } from '../utils/is-node';\n\nexport class NormalizeExpressions {\n  visit(node: ASTv2.ExpressionNode, state: NormalizationState): Result<mir.ExpressionNode> {\n    switch (node.type) {\n      case 'Literal':\n        return Ok(this.Literal(node));\n      case 'Interpolate':\n        return this.Interpolate(node, state);\n      case 'Path':\n        return this.PathExpression(node);\n      case 'Call':\n        let translated = CALL_KEYWORDS.translate(node, state);\n\n        if (translated !== null) {\n          return translated;\n        }\n\n        return this.CallExpression(node, state);\n      case 'DeprecatedCall':\n        return this.DeprecaedCallExpression(node, state);\n    }\n  }\n\n  visitList(\n    nodes: PresentArray<ASTv2.ExpressionNode>,\n    state: NormalizationState\n  ): Result<PresentList<mir.ExpressionNode>>;\n  visitList(\n    nodes: readonly ASTv2.ExpressionNode[],\n    state: NormalizationState\n  ): Result<AnyOptionalList<mir.ExpressionNode>>;\n  visitList(\n    nodes: readonly ASTv2.ExpressionNode[],\n    state: NormalizationState\n  ): Result<AnyOptionalList<mir.ExpressionNode>> {\n    return new ResultArray(nodes.map((e) => VISIT_EXPRS.visit(e, state))).toOptionalList();\n  }\n\n  /**\n   * Normalize paths into `hir.Path` or a `hir.Expr` that corresponds to the ref.\n   *\n   * TODO since keywords don't support tails anyway, distinguish PathExpression from\n   * VariableReference in ASTv2.\n   */\n  PathExpression(path: ASTv2.PathExpression): Result<mir.ExpressionNode> {\n    let ref = this.VariableReference(path.ref);\n    let { tail } = path;\n\n    if (isPresent(tail)) {\n      let tailLoc = tail[0].loc.extend(tail[tail.length - 1].loc);\n      return Ok(\n        new mir.PathExpression({\n          loc: path.loc,\n          head: ref,\n          tail: new mir.Tail({ loc: tailLoc, members: tail }),\n        })\n      );\n    } else {\n      return Ok(ref);\n    }\n  }\n\n  VariableReference(ref: ASTv2.VariableReference): ASTv2.VariableReference {\n    return ref;\n  }\n\n  Literal(literal: ASTv2.LiteralExpression): ASTv2.LiteralExpression {\n    return literal;\n  }\n\n  Interpolate(\n    expr: ASTv2.InterpolateExpression,\n    state: NormalizationState\n  ): Result<mir.InterpolateExpression> {\n    let parts = expr.parts.map(convertPathToCallIfKeyword) as PresentArray<ASTv2.ExpressionNode>;\n\n    return VISIT_EXPRS.visitList(parts, state).mapOk(\n      (parts) => new mir.InterpolateExpression({ loc: expr.loc, parts: parts })\n    );\n  }\n\n  CallExpression(\n    expr: ASTv2.CallExpression,\n    state: NormalizationState\n  ): Result<mir.ExpressionNode> {\n    if (!hasPath(expr)) {\n      throw new Error(`unimplemented subexpression at the head of a subexpression`);\n    } else {\n      return Result.all(\n        VISIT_EXPRS.visit(expr.callee, state),\n        VISIT_EXPRS.Args(expr.args, state)\n      ).mapOk(\n        ([callee, args]) =>\n          new mir.CallExpression({\n            loc: expr.loc,\n            callee,\n            args,\n          })\n      );\n    }\n  }\n\n  DeprecaedCallExpression(\n    { arg, callee, loc }: ASTv2.DeprecatedCallExpression,\n    _state: NormalizationState\n  ): Result<mir.ExpressionNode> {\n    return Ok(new mir.DeprecatedCallExpression({ loc, arg, callee }));\n  }\n\n  Args({ positional, named, loc }: ASTv2.Args, state: NormalizationState): Result<mir.Args> {\n    return Result.all(this.Positional(positional, state), this.NamedArguments(named, state)).mapOk(\n      ([positional, named]) =>\n        new mir.Args({\n          loc,\n          positional,\n          named,\n        })\n    );\n  }\n\n  Positional(\n    positional: ASTv2.PositionalArguments,\n    state: NormalizationState\n  ): Result<mir.Positional> {\n    return VISIT_EXPRS.visitList(positional.exprs, state).mapOk(\n      (list) =>\n        new mir.Positional({\n          loc: positional.loc,\n          list,\n        })\n    );\n  }\n\n  NamedArguments(\n    named: ASTv2.NamedArguments,\n    state: NormalizationState\n  ): Result<mir.NamedArguments> {\n    let pairs = named.entries.map((arg) => {\n      let value = convertPathToCallIfKeyword(arg.value);\n\n      return VISIT_EXPRS.visit(value, state).mapOk(\n        (value) =>\n          new mir.NamedArgument({\n            loc: arg.loc,\n            key: arg.name,\n            value,\n          })\n      );\n    });\n\n    return new ResultArray(pairs)\n      .toOptionalList()\n      .mapOk((pairs) => new mir.NamedArguments({ loc: named.loc, entries: pairs }));\n  }\n}\n\nexport function convertPathToCallIfKeyword(path: ASTv2.ExpressionNode): ASTv2.ExpressionNode {\n  if (path.type === 'Path' && path.ref.type === 'Free' && path.ref.name in KEYWORDS_TYPES) {\n    return new ASTv2.CallExpression({\n      callee: path,\n      args: ASTv2.Args.empty(path.loc),\n      loc: path.loc,\n    });\n  }\n\n  return path;\n}\n\nexport const VISIT_EXPRS = new NormalizeExpressions();\n"],"sourceRoot":""}