JsModule {
    bom_token: missing (optional),
    interpreter_token: missing (optional),
    directives: JsDirectiveList [],
    items: JsModuleItemList [
        JsVariableStatement {
            declaration: JsVariableDeclaration {
                await_token: missing (optional),
                kind: LET_KW@0..4 "let" [] [Whitespace(" ")],
                declarators: JsVariableDeclaratorList [
                    JsVariableDeclarator {
                        id: JsIdentifierBinding {
                            name_token: IDENT@4..6 "a" [] [Whitespace(" ")],
                        },
                        variable_annotation: missing (optional),
                        initializer: JsInitializerClause {
                            eq_token: EQ@6..8 "=" [] [Whitespace(" ")],
                            expression: JsTemplateExpression {
                                tag: missing (optional),
                                type_arguments: missing (optional),
                                l_tick_token: BACKTICK@8..9 "`" [] [],
                                elements: JsTemplateElementList [
                                    JsTemplateChunkElement {
                                        template_chunk_token: TEMPLATE_CHUNK@9..13 "foo " [] [],
                                    },
                                    JsTemplateElement {
                                        dollar_curly_token: DOLLAR_CURLY@13..15 "${" [] [],
                                        expression: missing (required),
                                        r_curly_token: R_CURLY@15..16 "}" [] [],
                                    },
                                ],
                                r_tick_token: BACKTICK@16..17 "`" [] [],
                            },
                        },
                    },
                ],
            },
            semicolon_token: missing (optional),
        },
        JsVariableStatement {
            declaration: JsVariableDeclaration {
                await_token: missing (optional),
                kind: LET_KW@17..22 "let" [Newline("\n")] [Whitespace(" ")],
                declarators: JsVariableDeclaratorList [
                    JsVariableDeclarator {
                        id: JsIdentifierBinding {
                            name_token: IDENT@22..24 "b" [] [Whitespace(" ")],
                        },
                        variable_annotation: missing (optional),
                        initializer: JsInitializerClause {
                            eq_token: EQ@24..26 "=" [] [Whitespace(" ")],
                            expression: JsBogusExpression {
                                items: [
                                    BACKTICK@26..27 "`" [] [],
                                    JsBogus {
                                        items: [
                                            JsBogus {
                                                items: [
                                                    DOLLAR_CURLY@27..29 "${" [] [],
                                                    JsIdentifierExpression {
                                                        name: JsReferenceIdentifier {
                                                            value_token: IDENT@29..31 "a" [] [Whitespace(" ")],
                                                        },
                                                    },
                                                    JsBogus {
                                                        items: [
                                                            IDENT@31..32 "a" [] [],
                                                        ],
                                                    },
                                                    R_CURLY@32..33 "}" [] [],
                                                ],
                                            },
                                        ],
                                    },
                                    BACKTICK@33..34 "`" [] [],
                                ],
                            },
                        },
                    },
                ],
            },
            semicolon_token: missing (optional),
        },
    ],
    eof_token: EOF@34..35 "" [Newline("\n")] [],
}

0: JS_MODULE@0..35
  0: (empty)
  1: (empty)
  2: JS_DIRECTIVE_LIST@0..0
  3: JS_MODULE_ITEM_LIST@0..34
    0: JS_VARIABLE_STATEMENT@0..17
      0: JS_VARIABLE_DECLARATION@0..17
        0: (empty)
        1: LET_KW@0..4 "let" [] [Whitespace(" ")]
        2: JS_VARIABLE_DECLARATOR_LIST@4..17
          0: JS_VARIABLE_DECLARATOR@4..17
            0: JS_IDENTIFIER_BINDING@4..6
              0: IDENT@4..6 "a" [] [Whitespace(" ")]
            1: (empty)
            2: JS_INITIALIZER_CLAUSE@6..17
              0: EQ@6..8 "=" [] [Whitespace(" ")]
              1: JS_TEMPLATE_EXPRESSION@8..17
                0: (empty)
                1: (empty)
                2: BACKTICK@8..9 "`" [] []
                3: JS_TEMPLATE_ELEMENT_LIST@9..16
                  0: JS_TEMPLATE_CHUNK_ELEMENT@9..13
                    0: TEMPLATE_CHUNK@9..13 "foo " [] []
                  1: JS_TEMPLATE_ELEMENT@13..16
                    0: DOLLAR_CURLY@13..15 "${" [] []
                    1: (empty)
                    2: R_CURLY@15..16 "}" [] []
                4: BACKTICK@16..17 "`" [] []
      1: (empty)
    1: JS_VARIABLE_STATEMENT@17..34
      0: JS_VARIABLE_DECLARATION@17..34
        0: (empty)
        1: LET_KW@17..22 "let" [Newline("\n")] [Whitespace(" ")]
        2: JS_VARIABLE_DECLARATOR_LIST@22..34
          0: JS_VARIABLE_DECLARATOR@22..34
            0: JS_IDENTIFIER_BINDING@22..24
              0: IDENT@22..24 "b" [] [Whitespace(" ")]
            1: (empty)
            2: JS_INITIALIZER_CLAUSE@24..34
              0: EQ@24..26 "=" [] [Whitespace(" ")]
              1: JS_BOGUS_EXPRESSION@26..34
                0: BACKTICK@26..27 "`" [] []
                1: JS_BOGUS@27..33
                  0: JS_BOGUS@27..33
                    0: DOLLAR_CURLY@27..29 "${" [] []
                    1: JS_IDENTIFIER_EXPRESSION@29..31
                      0: JS_REFERENCE_IDENTIFIER@29..31
                        0: IDENT@29..31 "a" [] [Whitespace(" ")]
                    2: JS_BOGUS@31..32
                      0: IDENT@31..32 "a" [] []
                    3: R_CURLY@32..33 "}" [] []
                2: BACKTICK@33..34 "`" [] []
      1: (empty)
  4: EOF@34..35 "" [Newline("\n")] []
--
template_literal.js:1:16 parse ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  × Expected an expression but instead found '}'.
  
  > 1 │ let a = `foo ${}`
      │                ^
    2 │ let b = `${a a}`
    3 │ 
  
  i Expected an expression here.
  
  > 1 │ let a = `foo ${}`
      │                ^
    2 │ let b = `${a a}`
    3 │ 
  
--
template_literal.js:2:14 parse ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  × expected `}` but instead found `a`
  
    1 │ let a = `foo ${}`
  > 2 │ let b = `${a a}`
      │              ^
    3 │ 
  
  i Remove a
  
--
let a = `foo ${}`
let b = `${a a}`