"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.parseElementBlockParams = parseElementBlockParams;
exports.childrenFor = childrenFor;
exports.appendChild = appendChild;
exports.isHBSLiteral = isHBSLiteral;
exports.printLiteral = printLiteral;
exports.isUpperCase = isUpperCase;
exports.isLowerCase = isLowerCase;

var _syntaxError = require("./syntax-error");

// Regex to validate the identifier for block parameters.
// Based on the ID validation regex in Handlebars.
let ID_INVERSE_PATTERN = /[!"#%-,\.\/;->@\[-\^`\{-~]/; // Checks the element's attributes to see if it uses block params.
// If it does, registers the block params with the program and
// removes the corresponding attributes from the element.

function parseElementBlockParams(element) {
  let params = parseBlockParams(element);
  if (params) element.blockParams = params;
}

function parseBlockParams(element) {
  let l = element.attributes.length;
  let attrNames = [];

  for (let i = 0; i < l; i++) {
    attrNames.push(element.attributes[i].name);
  }

  let asIndex = attrNames.indexOf('as');

  if (asIndex === -1 && attrNames.length > 0 && attrNames[attrNames.length - 1].charAt(0) === '|') {
    throw (0, _syntaxError.generateSyntaxError)('Block parameters must be preceded by the `as` keyword, detected block parameters without `as`', element.loc);
  }

  if (asIndex !== -1 && l > asIndex && attrNames[asIndex + 1].charAt(0) === '|') {
    // Some basic validation, since we're doing the parsing ourselves
    let paramsString = attrNames.slice(asIndex).join(' ');

    if (paramsString.charAt(paramsString.length - 1) !== '|' || paramsString.match(/\|/g).length !== 2) {
      throw (0, _syntaxError.generateSyntaxError)("Invalid block parameters syntax, '" + paramsString + "'", element.loc);
    }

    let params = [];

    for (let i = asIndex + 1; i < l; i++) {
      let param = attrNames[i].replace(/\|/g, '');

      if (param !== '') {
        if (ID_INVERSE_PATTERN.test(param)) {
          throw (0, _syntaxError.generateSyntaxError)("Invalid identifier for block parameters, '" + param + "'", element.loc);
        }

        params.push(param);
      }
    }

    if (params.length === 0) {
      throw (0, _syntaxError.generateSyntaxError)('Cannot use zero block parameters', element.loc);
    }

    element.attributes = element.attributes.slice(0, asIndex);
    return params;
  }

  return null;
}

function childrenFor(node) {
  switch (node.type) {
    case 'Block':
    case 'Template':
      return node.body;

    case 'ElementNode':
      return node.children;
  }
}

function appendChild(parent, node) {
  childrenFor(parent).push(node);
}

function isHBSLiteral(path) {
  return path.type === 'StringLiteral' || path.type === 'BooleanLiteral' || path.type === 'NumberLiteral' || path.type === 'NullLiteral' || path.type === 'UndefinedLiteral';
}

function printLiteral(literal) {
  if (literal.type === 'UndefinedLiteral') {
    return 'undefined';
  } else {
    return JSON.stringify(literal.value);
  }
}

function isUpperCase(tag) {
  return tag[0] === tag[0].toUpperCase() && tag[0] !== tag[0].toLowerCase();
}

function isLowerCase(tag) {
  return tag[0] === tag[0].toLowerCase() && tag[0] !== tag[0].toUpperCase();
}
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"sources":["../../../../packages/@glimmer/syntax/lib/utils.ts"],"names":[],"mappings":";;;;;;;;;;;;;AAGA;;AAIA;AACA;AAEA,IAAI,kBAAkB,GAAtB,4BAAA,C,CAEA;AACA;AACA;;AAEM,SAAA,uBAAA,CAAA,OAAA,EAA4D;AAChE,MAAI,MAAM,GAAG,gBAAgB,CAA7B,OAA6B,CAA7B;AACA,MAAA,MAAA,EAAY,OAAO,CAAP,WAAA,GAAA,MAAA;AACb;;AAED,SAAA,gBAAA,CAAA,OAAA,EAAoD;AAClD,MAAI,CAAC,GAAG,OAAO,CAAP,UAAA,CAAR,MAAA;AACA,MAAI,SAAS,GAAb,EAAA;;AAEA,OAAK,IAAI,CAAC,GAAV,CAAA,EAAgB,CAAC,GAAjB,CAAA,EAAuB,CAAvB,EAAA,EAA4B;AAC1B,IAAA,SAAS,CAAT,IAAA,CAAe,OAAO,CAAP,UAAA,CAAA,CAAA,EAAf,IAAA;AACD;;AAED,MAAI,OAAO,GAAG,SAAS,CAAT,OAAA,CAAd,IAAc,CAAd;;AAEA,MAAI,OAAO,KAAK,CAAZ,CAAA,IAAkB,SAAS,CAAT,MAAA,GAAlB,CAAA,IAA0C,SAAS,CAAC,SAAS,CAAT,MAAA,GAAV,CAAS,CAAT,CAAA,MAAA,CAAA,CAAA,MAA9C,GAAA,EAAiG;AAC/F,UAAM,sCAAmB,+FAAnB,EAEJ,OAAO,CAFT,GAAM,CAAN;AAID;;AAED,MAAI,OAAO,KAAK,CAAZ,CAAA,IAAkB,CAAC,GAAnB,OAAA,IAAiC,SAAS,CAAC,OAAO,GAAjB,CAAS,CAAT,CAAA,MAAA,CAAA,CAAA,MAArC,GAAA,EAA+E;AAC7E;AACA,QAAI,YAAY,GAAG,SAAS,CAAT,KAAA,CAAA,OAAA,EAAA,IAAA,CAAnB,GAAmB,CAAnB;;AACA,QACE,YAAY,CAAZ,MAAA,CAAoB,YAAY,CAAZ,MAAA,GAApB,CAAA,MAAA,GAAA,IACO,YAAY,CAAZ,KAAA,CAAP,KAAO,EAAP,MAAO,KAFT,CAAA,EAGE;AACA,YAAM,sCACJ,uCAAA,YAAA,GADuB,GAAnB,EAEJ,OAAO,CAFT,GAAM,CAAN;AAID;;AAED,QAAI,MAAM,GAAV,EAAA;;AACA,SAAK,IAAI,CAAC,GAAG,OAAO,GAApB,CAAA,EAA0B,CAAC,GAA3B,CAAA,EAAiC,CAAjC,EAAA,EAAsC;AACpC,UAAI,KAAK,GAAG,SAAS,CAAT,CAAS,CAAT,CAAA,OAAA,CAAA,KAAA,EAAZ,EAAY,CAAZ;;AACA,UAAI,KAAK,KAAT,EAAA,EAAkB;AAChB,YAAI,kBAAkB,CAAlB,IAAA,CAAJ,KAAI,CAAJ,EAAoC;AAClC,gBAAM,sCACJ,+CAAA,KAAA,GADuB,GAAnB,EAEJ,OAAO,CAFT,GAAM,CAAN;AAID;;AACD,QAAA,MAAM,CAAN,IAAA,CAAA,KAAA;AACD;AACF;;AAED,QAAI,MAAM,CAAN,MAAA,KAAJ,CAAA,EAAyB;AACvB,YAAM,sCAAmB,kCAAnB,EAAwD,OAAO,CAArE,GAAM,CAAN;AACD;;AAED,IAAA,OAAO,CAAP,UAAA,GAAqB,OAAO,CAAP,UAAA,CAAA,KAAA,CAAA,CAAA,EAArB,OAAqB,CAArB;AACA,WAAA,MAAA;AACD;;AAED,SAAA,IAAA;AACD;;AAEK,SAAA,WAAA,CAAA,IAAA,EACkD;AAEtD,UAAQ,IAAI,CAAZ,IAAA;AACE,SAAA,OAAA;AACA,SAAA,UAAA;AACE,aAAO,IAAI,CAAX,IAAA;;AACF,SAAA,aAAA;AACE,aAAO,IAAI,CAAX,QAAA;AALJ;AAOD;;AAEK,SAAA,WAAA,CAAA,MAAA,EAAA,IAAA,EAEiB;AAErB,EAAA,WAAW,CAAX,MAAW,CAAX,CAAA,IAAA,CAAA,IAAA;AACD;;AAIK,SAAA,YAAA,CAAA,IAAA,EACmC;AAEvC,SACE,IAAI,CAAJ,IAAA,KAAA,eAAA,IACA,IAAI,CAAJ,IAAA,KADA,gBAAA,IAEA,IAAI,CAAJ,IAAA,KAFA,eAAA,IAGA,IAAI,CAAJ,IAAA,KAHA,aAAA,IAIA,IAAI,CAAJ,IAAA,KALF,kBAAA;AAOD;;AAEK,SAAA,YAAA,CAAA,OAAA,EAA6C;AACjD,MAAI,OAAO,CAAP,IAAA,KAAJ,kBAAA,EAAyC;AACvC,WAAA,WAAA;AADF,GAAA,MAEO;AACL,WAAO,IAAI,CAAJ,SAAA,CAAe,OAAO,CAA7B,KAAO,CAAP;AACD;AACF;;AAEK,SAAA,WAAA,CAAA,GAAA,EAAiC;AACrC,SAAO,GAAG,CAAH,CAAG,CAAH,KAAW,GAAG,CAAH,CAAG,CAAH,CAAX,WAAW,EAAX,IAAmC,GAAG,CAAH,CAAG,CAAH,KAAW,GAAG,CAAH,CAAG,CAAH,CAArD,WAAqD,EAArD;AACD;;AAEK,SAAA,WAAA,CAAA,GAAA,EAAiC;AACrC,SAAO,GAAG,CAAH,CAAG,CAAH,KAAW,GAAG,CAAH,CAAG,CAAH,CAAX,WAAW,EAAX,IAAmC,GAAG,CAAH,CAAG,CAAH,KAAW,GAAG,CAAH,CAAG,CAAH,CAArD,WAAqD,EAArD;AACD","sourcesContent":["import { Option } from '@glimmer/interfaces';\nimport { expect } from '@glimmer/util';\n\nimport { generateSyntaxError } from './syntax-error';\nimport * as ASTv1 from './v1/api';\nimport * as HBS from './v1/handlebars-ast';\n\n// Regex to validate the identifier for block parameters.\n// Based on the ID validation regex in Handlebars.\n\nlet ID_INVERSE_PATTERN = /[!\"#%-,\\.\\/;->@\\[-\\^`\\{-~]/;\n\n// Checks the element's attributes to see if it uses block params.\n// If it does, registers the block params with the program and\n// removes the corresponding attributes from the element.\n\nexport function parseElementBlockParams(element: ASTv1.ElementNode): void {\n  let params = parseBlockParams(element);\n  if (params) element.blockParams = params;\n}\n\nfunction parseBlockParams(element: ASTv1.ElementNode): Option<string[]> {\n  let l = element.attributes.length;\n  let attrNames = [];\n\n  for (let i = 0; i < l; i++) {\n    attrNames.push(element.attributes[i].name);\n  }\n\n  let asIndex = attrNames.indexOf('as');\n\n  if (asIndex === -1 && attrNames.length > 0 && attrNames[attrNames.length - 1].charAt(0) === '|') {\n    throw generateSyntaxError(\n      'Block parameters must be preceded by the `as` keyword, detected block parameters without `as`',\n      element.loc\n    );\n  }\n\n  if (asIndex !== -1 && l > asIndex && attrNames[asIndex + 1].charAt(0) === '|') {\n    // Some basic validation, since we're doing the parsing ourselves\n    let paramsString = attrNames.slice(asIndex).join(' ');\n    if (\n      paramsString.charAt(paramsString.length - 1) !== '|' ||\n      expect(paramsString.match(/\\|/g), `block params must exist here`).length !== 2\n    ) {\n      throw generateSyntaxError(\n        \"Invalid block parameters syntax, '\" + paramsString + \"'\",\n        element.loc\n      );\n    }\n\n    let params = [];\n    for (let i = asIndex + 1; i < l; i++) {\n      let param = attrNames[i].replace(/\\|/g, '');\n      if (param !== '') {\n        if (ID_INVERSE_PATTERN.test(param)) {\n          throw generateSyntaxError(\n            \"Invalid identifier for block parameters, '\" + param + \"'\",\n            element.loc\n          );\n        }\n        params.push(param);\n      }\n    }\n\n    if (params.length === 0) {\n      throw generateSyntaxError('Cannot use zero block parameters', element.loc);\n    }\n\n    element.attributes = element.attributes.slice(0, asIndex);\n    return params;\n  }\n\n  return null;\n}\n\nexport function childrenFor(\n  node: ASTv1.Block | ASTv1.Template | ASTv1.ElementNode\n): ASTv1.TopLevelStatement[] {\n  switch (node.type) {\n    case 'Block':\n    case 'Template':\n      return node.body;\n    case 'ElementNode':\n      return node.children;\n  }\n}\n\nexport function appendChild(\n  parent: ASTv1.Block | ASTv1.Template | ASTv1.ElementNode,\n  node: ASTv1.Statement\n): void {\n  childrenFor(parent).push(node);\n}\n\nexport function isHBSLiteral(path: HBS.Expression): path is HBS.Literal;\nexport function isHBSLiteral(path: ASTv1.Expression): path is ASTv1.Literal;\nexport function isHBSLiteral(\n  path: HBS.Expression | ASTv1.Expression\n): path is HBS.Literal | ASTv1.Literal {\n  return (\n    path.type === 'StringLiteral' ||\n    path.type === 'BooleanLiteral' ||\n    path.type === 'NumberLiteral' ||\n    path.type === 'NullLiteral' ||\n    path.type === 'UndefinedLiteral'\n  );\n}\n\nexport function printLiteral(literal: ASTv1.Literal): string {\n  if (literal.type === 'UndefinedLiteral') {\n    return 'undefined';\n  } else {\n    return JSON.stringify(literal.value);\n  }\n}\n\nexport function isUpperCase(tag: string): boolean {\n  return tag[0] === tag[0].toUpperCase() && tag[0] !== tag[0].toLowerCase();\n}\n\nexport function isLowerCase(tag: string): boolean {\n  return tag[0] === tag[0].toLowerCase() && tag[0] !== tag[0].toUpperCase();\n}\n"],"sourceRoot":""}