Code coverage report for src/parser/namespace.js

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/*!
 * Copyright (C) 2017 Glayzzle (BSD3 License)
 * @authors https://github.com/glayzzle/php-parser/graphs/contributors
 * @url http://glayzzle.com
 */
"use strict";
 
module.exports = {
  /**
   * Reads a namespace declaration block
   * ```ebnf
   * namespace ::= T_NAMESPACE namespace_name? '{'
   *    top_statements
   * '}'
   * | T_NAMESPACE namespace_name ';' top_statements
   * ```
   * @see http://php.net/manual/en/language.namespaces.php
   * @return {Namespace}
   */
  read_namespace: function() {
    var result = this.node('namespace');
    this.expect(this.tok.T_NAMESPACE) && this.next();
    if (this.token == '{') {
      this.currentNamespace = [''];
      var body =  this.nextWithComments().read_top_statements();
      this.expect('}') && this.nextWithComments();
      return result([''], body, true);
    } else {
      var name = this.read_namespace_name();
      if (this.token == ';') {
        this.currentNamespace = name;
        var body = this.nextWithComments().read_top_statements();
        this.expect(this.EOF);
        return result(name.name, body, false);
      } else if (this.token == '{') {
        this.currentNamespace = name;
        var body =  this.nextWithComments().read_top_statements();
        this.expect('}') && this.nextWithComments();
        return result(name.name, body, true);
      } else if (this.token === '(') {
        // resolve ambuiguity between namespace & function call
        name.resolution = this.ast.identifier.RELATIVE_NAME;
        name.name = name.name.substring(1);
        return this.node('call')(
          name, this.read_function_argument_list()
        );
      } else {
        this.error(['{', ';']);
        // graceful mode :
        this.currentNamespace = name;
        var body = this.read_top_statements();
        this.expect(this.EOF);
        return result(name, body, false);
      }
    }
  }
  /**
   * Reads a namespace name
   * ```ebnf
   *  namespace_name ::= T_NS_SEPARATOR? (T_STRING T_NS_SEPARATOR)* T_STRING
   * ```
   * @see http://php.net/manual/en/language.namespaces.rules.php
   * @return {Identifier}
   */
  ,read_namespace_name: function() {
    var result = this.node('identifier'), relative = false;
    if (this.token === this.tok.T_NAMESPACE) {
      this.next().expect(this.tok.T_NS_SEPARATOR) && this.next();
      relative = true
    }
    return result(
      this.read_list(this.tok.T_STRING, this.tok.T_NS_SEPARATOR, true),
      relative
    );
  }
  /**
   * Reads a use statement
   * ```ebnf
   * use_statement ::= T_USE
   *   use_type? use_declarations |
   *   use_type use_statement '{' use_declarations '}' |
   *   use_statement '{' use_declarations(=>typed) '}'
   * ';'
   * ```
   * @see http://php.net/manual/en/language.namespaces.importing.php
   * @return {UseGroup}
   */
  ,read_use_statement: function() {
    var result = this.node('usegroup'),
      type = null,
      items = [],
      name = null
    ;
    this.expect(this.tok.T_USE) && this.next();
    type = this.read_use_type();
    items.push(this.read_use_declaration(false));
    if (this.token === ',') {
      items = items.concat(this.next().read_use_declarations(false));
    } else if (this.token === '{') {
      name = items[0].name;
      items = this.next().read_use_declarations(type === null);
      this.expect('}') && this.next();
    }
    this.expect(';') && this.nextWithComments();
    return result(name, type, items);
  }
  /**
   * Reads a use declaration
   * ```ebnf
   * use_declaration ::= use_type? namespace_name use_alias
   * ```
   * @see https://github.com/php/php-src/blob/master/Zend/zend_language_parser.y#L380
   * @return {UseItem}
   */
  ,read_use_declaration: function(typed) {
    var result = this.node('useitem'), type = null;
    if (typed) type = this.read_use_type();
    var name = this.read_namespace_name();
    var alias = this.read_use_alias();
    return result(name.name, alias, type);
  }
  /**
  * Reads a list of use declarations
  * ```ebnf
  * use_declarations ::= use_declaration (',' use_declaration)*
  * ```
  * @see https://github.com/php/php-src/blob/master/Zend/zend_language_parser.y#L380
  * @return {UseItem[]}
   */
  ,read_use_declarations: function(typed) {
    var result = [this.read_use_declaration(typed)];
    while(this.token === ',') {
      result.push(this.next().read_use_declaration(typed));
    }
    return result;
  }
  /**
   * Reads a use statement
   * ```ebnf
   * use_alias ::= (T_AS T_STRING)?
   * ```
   * @return {String|null}
   */
  ,read_use_alias: function() {
    var result = null;
    if (this.token === this.tok.T_AS) {
      Eif (this.next().expect(this.tok.T_STRING)) {
        result = this.text();
        this.next();
      }
    }
    return result;
  }
  /**
   * Reads the namespace type declaration
   * ```ebnf
   * use_type ::= (T_FUNCTION | T_CONST)?
   * ```
   * @see https://github.com/php/php-src/blob/master/Zend/zend_language_parser.y#L335
   * @return {String|null} Possible values : function, const
   */
  ,read_use_type: function() {
    if (this.token === this.tok.T_FUNCTION) {
      this.next();
      return this.ast.useitem.TYPE_FUNCTION;
    } else if (this.token === this.tok.T_CONST) {
      this.next();
      return this.ast.useitem.TYPE_CONST;
    }
    return null;
  }
};