;; http://code.google.com/p/js2-mode/
;; Version: 20141118
;; Keywords: languages, javascript
-;; Package-Requires: ((emacs "24.1"))
+;; Package-Requires: ((emacs "24.1") (cl-lib "0.5"))
;; This file is part of GNU Emacs.
;;; Code:
-(eval-when-compile
- (require 'cl))
-
+(require 'cl-lib)
(require 'imenu)
(require 'cc-cmds) ; for `c-fill-paragraph'
(defmacro js2-deflocal (name value &optional comment)
"Define a buffer-local variable NAME with VALUE and COMMENT."
+ (declare (debug defvar) (doc-string 3))
`(progn
(defvar ,name ,value ,comment)
(make-variable-buffer-local ',name)))
"Token stream buffer-local variable.
List of chars built up while scanning various tokens.")
-(defstruct (js2-token
- (:constructor nil)
- (:constructor make-js2-token (beg)))
+(cl-defstruct (js2-token
+ (:constructor nil)
+ (:constructor make-js2-token (beg)))
"Value returned from the token stream."
(type js2-EOF)
(beg 1)
comment-type
follows-eol-p)
-(defstruct (js2-ts-state
- (:constructor make-js2-ts-state (&key (lineno js2-ts-lineno)
- (cursor js2-ts-cursor)
- (tokens (copy-sequence js2-ti-tokens))
- (tokens-cursor js2-ti-tokens-cursor)
- (lookahead js2-ti-lookahead))))
+;; Have to call `js2-init-scanner' to initialize the values.
+(js2-deflocal js2-ti-tokens nil)
+(js2-deflocal js2-ti-tokens-cursor nil)
+(js2-deflocal js2-ti-lookahead nil)
+
+(cl-defstruct (js2-ts-state
+ (:constructor make-js2-ts-state (&key (lineno js2-ts-lineno)
+ (cursor js2-ts-cursor)
+ (tokens (copy-sequence js2-ti-tokens))
+ (tokens-cursor js2-ti-tokens-cursor)
+ (lookahead js2-ti-lookahead))))
lineno
cursor
tokens
(js2-deflocal js2-parse-stmt-count 0)
(defsubst js2-get-next-temp-name ()
- (format "$%d" (incf js2-temp-name-counter)))
+ (format "$%d" (cl-incf js2-temp-name-counter)))
(defvar js2-parse-interruptable-p t
"Set this to nil to force parse to continue until finished.
(js2-msg "msg.let.decl.not.in.block"
"SyntaxError: let declaration not directly within block")
+(js2-msg "msg.mod.import.decl.at.top.level"
+ "SyntaxError: import declarations may only appear at the top level")
+
+(js2-msg "msg.mod.as.after.reserved.word"
+ "SyntaxError: missing keyword 'as' after reserved word %s")
+
+(js2-msg "msg.mod.rc.after.import.spec.list"
+ "SyntaxError: missing '}' after module specifier list")
+
+(js2-msg "msg.mod.from.after.import.spec.set"
+ "SyntaxError: missing keyword 'from' after import specifier set")
+
+(js2-msg "msg.mod.declaration.after.import"
+ "SyntaxError: missing declaration after 'import' keyword")
+
+(js2-msg "msg.mod.spec.after.from"
+ "SyntaxError: missing module specifier after 'from' keyword")
+
+(js2-msg "msg.mod.export.decl.at.top.level"
+ "SyntaxError: export declarations may only appear at top level")
+
+(js2-msg "msg.mod.rc.after.export.spec.list"
+ "SyntaxError: missing '}' after export specifier list")
+
;; NodeTransformer
(js2-msg "msg.dup.label"
"duplicated label")
(defconst js2-ti-max-lookahead 2)
(defconst js2-ti-ntokens (1+ js2-ti-max-lookahead))
-;; Have to call `js2-init-scanner' to initialize the values.
-(js2-deflocal js2-ti-tokens nil)
-(js2-deflocal js2-ti-tokens-cursor nil)
-(js2-deflocal js2-ti-lookahead nil)
-
(defun js2-new-token (offset)
(let ((token (make-js2-token (+ offset js2-ts-cursor))))
(setq js2-ti-tokens-cursor (mod (1+ js2-ti-tokens-cursor) js2-ti-ntokens))
(defun js2-delete-if (predicate list)
"Remove all items satisfying PREDICATE in LIST."
- (loop for item in list
- if (not (funcall predicate item))
- collect item))
+ (cl-loop for item in list
+ if (not (funcall predicate item))
+ collect item))
(defun js2-position (element list)
"Find 0-indexed position of ELEMENT in LIST comparing with `eq'.
;; call the end-visit
(funcall callback node t))))
-(defstruct (js2-node
- (:constructor nil)) ; abstract
+(cl-defstruct (js2-node
+ (:constructor nil)) ; abstract
"Base AST node type."
(type -1) ; token type
(pos -1) ; start position of this AST node in parsed input
;; otherwise consists of defstruct vectors. Emacs will crash printing
;; a sufficiently large vector tree.
-(defstruct (js2-block-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-block-node (&key (type js2-BLOCK)
- (pos (js2-current-token-beg))
- len
- props
- kids)))
+(cl-defstruct (js2-block-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-block-node (&key (type js2-BLOCK)
+ (pos (js2-current-token-beg))
+ len
+ props
+ kids)))
"A block of statements."
kids) ; a Lisp list of the child statement nodes
(js2-print-ast kid (1+ i)))
(insert pad "}")))
-(defstruct (js2-scope
- (:include js2-block-node)
- (:constructor nil)
- (:constructor make-js2-scope (&key (type js2-BLOCK)
- (pos (js2-current-token-beg))
- len
- kids)))
+(cl-defstruct (js2-scope
+ (:include js2-block-node)
+ (:constructor nil)
+ (:constructor make-js2-scope (&key (type js2-BLOCK)
+ (pos (js2-current-token-beg))
+ len
+ kids)))
;; The symbol-table is a LinkedHashMap<String,Symbol> in Rhino.
;; I don't have one of those handy, so I'll use an alist for now.
;; It's as fast as an emacs hashtable for up to about 50 elements,
(push (cons sym symbol)
(js2-scope-symbol-table scope)))))
-(defstruct (js2-symbol
- (:constructor nil)
- (:constructor make-js2-symbol (decl-type name &optional ast-node)))
+(cl-defstruct (js2-symbol
+ (:constructor nil)
+ (:constructor make-js2-symbol (decl-type name &optional ast-node)))
"A symbol table entry."
;; One of js2-FUNCTION, js2-LP (for parameters), js2-VAR,
;; js2-LET, or js2-CONST
name ; string
ast-node) ; a `js2-node'
-(defstruct (js2-error-node
- (:include js2-node)
- (:constructor nil) ; silence emacs21 byte-compiler
- (:constructor make-js2-error-node (&key (type js2-ERROR)
- (pos (js2-current-token-beg))
- len)))
+(cl-defstruct (js2-error-node
+ (:include js2-node)
+ (:constructor nil) ; silence emacs21 byte-compiler
+ (:constructor make-js2-error-node (&key (type js2-ERROR)
+ (pos (js2-current-token-beg))
+ len)))
"AST node representing a parse error.")
(put 'cl-struct-js2-error-node 'js2-visitor 'js2-visit-none)
(put 'cl-struct-js2-error-node 'js2-printer 'js2-print-none)
-(defstruct (js2-script-node
- (:include js2-scope)
- (:constructor nil)
- (:constructor make-js2-script-node (&key (type js2-SCRIPT)
- (pos (js2-current-token-beg))
- len
- ;; FIXME: What are those?
- var-decls
- fun-decls)))
+(cl-defstruct (js2-script-node
+ (:include js2-scope)
+ (:constructor nil)
+ (:constructor make-js2-script-node (&key (type js2-SCRIPT)
+ (pos (js2-current-token-beg))
+ len
+ ;; FIXME: What are those?
+ var-decls
+ fun-decls)))
functions ; Lisp list of nested functions
regexps ; Lisp list of (string . flags)
symbols ; alist (every symbol gets unique index)
(dolist (kid (js2-block-node-kids node))
(js2-print-ast kid indent)))
-(defstruct (js2-ast-root
- (:include js2-script-node)
- (:constructor nil)
- (:constructor make-js2-ast-root (&key (type js2-SCRIPT)
- (pos (js2-current-token-beg))
- len
- buffer)))
+(cl-defstruct (js2-ast-root
+ (:include js2-script-node)
+ (:constructor nil)
+ (:constructor make-js2-ast-root (&key (type js2-SCRIPT)
+ (pos (js2-current-token-beg))
+ len
+ buffer)))
"The root node of a js2 AST."
buffer ; the source buffer from which the code was parsed
comments ; a Lisp list of comments, ordered by start position
(dolist (comment (js2-ast-root-comments ast))
(js2-visit-ast comment callback)))
-(defstruct (js2-comment-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-comment-node (&key (type js2-COMMENT)
- (pos (js2-current-token-beg))
- len
- format)))
+(cl-defstruct (js2-comment-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-comment-node (&key (type js2-COMMENT)
+ (pos (js2-current-token-beg))
+ len
+ format)))
format) ; 'line, 'block, 'jsdoc or 'html
(put 'cl-struct-js2-comment-node 'js2-visitor 'js2-visit-none)
(insert (js2-make-pad i)
(js2-node-string n)))
-(defstruct (js2-expr-stmt-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-expr-stmt-node (&key (type js2-EXPR_VOID)
- (pos js2-ts-cursor)
- len
- expr)))
+(cl-defstruct (js2-expr-stmt-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-expr-stmt-node (&key (type js2-EXPR_VOID)
+ (pos js2-ts-cursor)
+ len
+ expr)))
"An expression statement."
expr)
(js2-print-ast (js2-expr-stmt-node-expr n) indent)
(insert ";\n"))
-(defstruct (js2-loop-node
- (:include js2-scope)
- (:constructor nil))
+(cl-defstruct (js2-loop-node
+ (:include js2-scope)
+ (:constructor nil))
"Abstract supertype of loop nodes."
body ; a `js2-block-node'
lp ; position of left-paren, nil if omitted
rp) ; position of right-paren, nil if omitted
-(defstruct (js2-do-node
- (:include js2-loop-node)
- (:constructor nil)
- (:constructor make-js2-do-node (&key (type js2-DO)
- (pos (js2-current-token-beg))
- len
- body
- condition
- while-pos
- lp
- rp)))
+(cl-defstruct (js2-do-node
+ (:include js2-loop-node)
+ (:constructor nil)
+ (:constructor make-js2-do-node (&key (type js2-DO)
+ (pos (js2-current-token-beg))
+ len
+ body
+ condition
+ while-pos
+ lp
+ rp)))
"AST node for do-loop."
condition ; while (expression)
while-pos) ; buffer position of 'while' keyword
(js2-print-ast (js2-do-node-condition n) 0)
(insert ");\n")))
-(defstruct (js2-while-node
- (:include js2-loop-node)
- (:constructor nil)
- (:constructor make-js2-while-node (&key (type js2-WHILE)
- (pos (js2-current-token-beg))
- len body
- condition lp
- rp)))
+(cl-defstruct (js2-export-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-export-node (&key (type js2-EXPORT)
+ (pos) (js2-current-token-beg)
+ len
+ exports-list
+ from-clause
+ declaration
+ default)))
+ "AST node for an export statement. There are many things that can be exported,
+so many of its properties will be nil.
+"
+ exports-list ; lisp list of js2-export-binding-node to export
+ from-clause ; js2-from-clause-node for re-exporting symbols from another module
+ declaration ; js2-var-decl-node (var, let, const) or js2-class-node
+ default) ; js2-function-node or js2-assign-node
+
+(put 'cl-struct-js2-export-node 'js2-visitor 'js2-visit-export-node)
+(put 'cl-struct-js2-export-node 'js2-printer 'js2-print-export-node)
+
+(defun js2-visit-export-node (n v)
+ (let ((exports-list (js2-export-node-exports-list n))
+ (from (js2-export-node-from-clause n))
+ (declaration (js2-export-node-declaration n))
+ (default (js2-export-node-default n)))
+ (when exports-list
+ (dolist (export exports-list)
+ (js2-visit-ast export v)))
+ (when from
+ (js2-visit-ast from v))
+ (when declaration
+ (js2-visit-ast declaration v))
+ (when default
+ (js2-visit-ast default v))))
+
+(defun js2-print-export-node (n i)
+ (let ((pad (js2-make-pad i))
+ (exports-list (js2-export-node-exports-list n))
+ (from (js2-export-node-from-clause n))
+ (declaration (js2-export-node-declaration n))
+ (default (js2-export-node-default n)))
+ (insert pad "export ")
+ (cond
+ (default
+ (insert "default ")
+ (js2-print-ast default i))
+ (declaration
+ (js2-print-ast declaration i))
+ ((and exports-list from)
+ (js2-print-named-imports exports-list)
+ (insert " ")
+ (js2-print-from-clause from))
+ (from
+ (insert "* ")
+ (js2-print-from-clause from))
+ (exports-list
+ (js2-print-named-imports exports-list)))
+ (insert ";\n")))
+
+(cl-defstruct (js2-while-node
+ (:include js2-loop-node)
+ (:constructor nil)
+ (:constructor make-js2-while-node (&key (type js2-WHILE)
+ (pos (js2-current-token-beg))
+ len body
+ condition lp
+ rp)))
"AST node for while-loop."
condition) ; while-condition
(js2-print-body (js2-while-node-body n) (1+ i))
(insert pad "}\n")))
-(defstruct (js2-for-node
- (:include js2-loop-node)
- (:constructor nil)
- (:constructor make-js2-for-node (&key (type js2-FOR)
- (pos js2-ts-cursor)
- len body init
- condition
- update lp rp)))
+(cl-defstruct (js2-for-node
+ (:include js2-loop-node)
+ (:constructor nil)
+ (:constructor make-js2-for-node (&key (type js2-FOR)
+ (pos js2-ts-cursor)
+ len body init
+ condition
+ update lp rp)))
"AST node for a C-style for-loop."
init ; initialization expression
condition ; loop condition
(js2-print-body (js2-for-node-body n) (1+ i))
(insert pad "}\n")))
-(defstruct (js2-for-in-node
- (:include js2-loop-node)
- (:constructor nil)
- (:constructor make-js2-for-in-node (&key (type js2-FOR)
- (pos js2-ts-cursor)
- len body
- iterator
- object
- in-pos
- each-pos
- foreach-p forof-p
- lp rp)))
+(cl-defstruct (js2-for-in-node
+ (:include js2-loop-node)
+ (:constructor nil)
+ (:constructor make-js2-for-in-node (&key (type js2-FOR)
+ (pos js2-ts-cursor)
+ len body
+ iterator
+ object
+ in-pos
+ each-pos
+ foreach-p forof-p
+ lp rp)))
"AST node for a for..in loop."
iterator ; [var] foo in ...
object ; object over which we're iterating
(js2-print-body (js2-for-in-node-body n) (1+ i))
(insert pad "}\n")))
-(defstruct (js2-return-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-return-node (&key (type js2-RETURN)
- (pos js2-ts-cursor)
- len
- retval)))
+(cl-defstruct (js2-return-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-return-node (&key (type js2-RETURN)
+ (pos js2-ts-cursor)
+ len
+ retval)))
"AST node for a return statement."
retval) ; expression to return, or 'undefined
(js2-print-ast (js2-return-node-retval n) 0))
(insert ";\n"))
-(defstruct (js2-if-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-if-node (&key (type js2-IF)
- (pos js2-ts-cursor)
- len condition
- then-part
- else-pos
- else-part lp
- rp)))
+(cl-defstruct (js2-if-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-if-node (&key (type js2-IF)
+ (pos js2-ts-cursor)
+ len condition
+ then-part
+ else-pos
+ else-part lp
+ rp)))
"AST node for an if-statement."
condition ; expression
then-part ; statement or block
(js2-print-body else-part (1+ i))
(insert pad "}\n")))))
-(defstruct (js2-try-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-try-node (&key (type js2-TRY)
- (pos js2-ts-cursor)
- len
- try-block
- catch-clauses
- finally-block)))
+(cl-defstruct (js2-export-binding-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-export-binding-node (&key (type -1)
+ pos
+ len
+ local-name
+ extern-name)))
+ "AST node for an external symbol binding.
+It contains a local-name node which is the name of the value in the
+current scope, and extern-name which is the name of the value in the
+imported or exported scope. By default these are the same, but if the
+name is aliased as in {foo as bar}, it would have an extern-name node
+containing 'foo' and a local-name node containing 'bar'."
+ local-name ; js2-name-node with the variable name in this scope
+ extern-name) ; js2-name-node with the value name in the exporting module
+
+(put 'cl-struct-js2-export-binding-node 'js2-printer 'js2-print-extern-binding)
+(put 'cl-struct-js2-export-binding-node 'js2-visitor 'js2-visit-extern-binding)
+
+(defun js2-visit-extern-binding (n v)
+ "Visit an extern binding node. First visit the local-name, and, if
+different, visit the extern-name."
+ (let ((local-name (js2-export-binding-node-local-name n))
+ (extern-name (js2-export-binding-node-extern-name n)))
+ (when local-name
+ (js2-visit-ast local-name v))
+ (when (not (equal local-name extern-name))
+ (js2-visit-ast extern-name v))))
+
+(defun js2-print-extern-binding (n i)
+ "Print a representation of a single extern binding. E.g. 'foo' or
+'foo as bar'."
+ (let ((local-name (js2-export-binding-node-local-name n))
+ (extern-name (js2-export-binding-node-extern-name n)))
+ (insert (js2-name-node-name extern-name))
+ (when (not (equal local-name extern-name))
+ (insert " as ")
+ (insert (js2-name-node-name local-name)))))
+
+
+(cl-defstruct (js2-import-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-import-node (&key (type js2-IMPORT)
+ (pos (js2-current-token-beg))
+ len
+ import
+ from
+ module-id)))
+ "AST node for an import statement. It follows the form
+
+import ModuleSpecifier;
+import ImportClause FromClause;"
+ import ; js2-import-clause-node specifying which names are to imported.
+ from ; js2-from-clause-node indicating the module from which to import.
+ module-id) ; module-id of the import. E.g. 'src/mylib'.
+
+(put 'cl-struct-js2-import-node 'js2-printer 'js2-print-import)
+(put 'cl-struct-js2-import-node 'js2-visitor 'js2-visit-import)
+
+(defun js2-visit-import (n v)
+ (let ((import-clause (js2-import-node-import n))
+ (from-clause (js2-import-node-from n)))
+ (when import-clause
+ (js2-visit-ast import-clause v))
+ (when from-clause
+ (js2-visit-ast from-clause v))))
+
+(defun js2-print-import (n i)
+ "Prints a representation of the import node"
+ (let ((pad (js2-make-pad i))
+ (import-clause (js2-import-node-import n))
+ (from-clause (js2-import-node-from n))
+ (module-id (js2-import-node-module-id n)))
+ (insert pad "import ")
+ (if import-clause
+ (progn
+ (js2-print-import-clause import-clause)
+ (insert " ")
+ (js2-print-from-clause from-clause))
+ (insert "'")
+ (insert module-id)
+ (insert "'"))
+ (insert ";\n")))
+
+(cl-defstruct (js2-import-clause-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-import-clause-node (&key (type -1)
+ pos
+ len
+ namespace-import
+ named-imports
+ default-binding)))
+ "AST node corresponding to the import clause of an import statement. This is
+the portion of the import that bindings names from the external context to the
+local context."
+ namespace-import ; js2-namespace-import-node. E.g. '* as lib'
+ named-imports ; lisp list of js2-export-binding-node for all named imports.
+ default-binding) ; js2-export-binding-node for the default import binding
+
+(put 'cl-struct-js2-import-clause-node 'js2-visitor 'js2-visit-import-clause)
+(put 'cl-struct-js2-import-clause-node 'js2-printer 'js2-print-import-clause)
+
+(defun js2-visit-import-clause (n v)
+ (let ((ns-import (js2-import-clause-node-namespace-import n))
+ (named-imports (js2-import-clause-node-named-imports n))
+ (default (js2-import-clause-node-default-binding n)))
+ (when ns-import
+ (js2-visit-ast ns-import v))
+ (when named-imports
+ (dolist (import named-imports)
+ (js2-visit-ast import v)))
+ (when default
+ (js2-visit-ast default v))))
+
+(defun js2-print-import-clause (n)
+ (let ((ns-import (js2-import-clause-node-namespace-import n))
+ (named-imports (js2-import-clause-node-named-imports n))
+ (default (js2-import-clause-node-default-binding n)))
+ (cond
+ ((and default ns-import)
+ (js2-print-ast default)
+ (insert ", ")
+ (js2-print-namespace-import ns-import))
+ ((and default named-imports)
+ (js2-print-ast default)
+ (insert ", ")
+ (js2-print-named-imports named-imports))
+ (default
+ (js2-print-ast default))
+ (ns-import
+ (js2-print-namespace-import ns-import))
+ (named-imports
+ (js2-print-named-imports named-imports)))))
+
+(defun js2-print-namespace-import (node)
+ (insert "* as ")
+ (insert (js2-name-node-name (js2-namespace-import-node-name node))))
+
+(defun js2-print-named-imports (imports)
+ (insert "{")
+ (let ((len (length imports))
+ (n 0))
+ (while (< n len)
+ (js2-print-extern-binding (nth n imports) 0)
+ (unless (= n (- len 1))
+ (insert ", "))
+ (setq n (+ n 1))))
+ (insert "}"))
+
+(cl-defstruct (js2-namespace-import-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-namespace-import-node (&key (type -1)
+ pos
+ len
+ name)))
+ "AST node for a complete namespace import.
+E.g. the '* as lib' expression in:
+
+import * as lib from 'src/lib'
+
+It contains a single name node referring to the bound name."
+ name) ; js2-name-node of the bound name.
+
+(defun js2-visit-namespace-import (n v)
+ (js2-visit-ast (js2-namespace-import-node-name n) v))
+
+(put 'cl-struct-js2-namespace-import-node 'js2-visitor 'js2-visit-namespace-import)
+(put 'cl-struct-js2-namespace-import-node 'js2-printer 'js2-print-namespace-import)
+
+(cl-defstruct (js2-from-clause-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-from-clause-node (&key (type js2-NAME)
+ pos
+ len
+ module-id
+ metadata-p)))
+ "AST node for the from clause in an import or export statement.
+E.g. from 'my/module'. It can refere to either an external module, or to the
+modules metadata itself."
+ module-id ; string containing the module specifier.
+ metadata-p) ; true if this clause refers to the module's metadata
+
+(put 'cl-struct-js2-from-clause-node 'js2-visitor 'js2-visit-none)
+(put 'cl-struct-js2-from-clause-node 'js2-printer 'js2-print-from-clause)
+
+(defun js2-print-from-clause (n)
+ (insert "from ")
+ (if (js2-from-clause-node-metadata-p n)
+ (insert "this module")
+ (insert "'")
+ (insert (js2-from-clause-node-module-id n))
+ (insert "'")))
+
+(cl-defstruct (js2-try-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-try-node (&key (type js2-TRY)
+ (pos js2-ts-cursor)
+ len
+ try-block
+ catch-clauses
+ finally-block)))
"AST node for a try-statement."
try-block
catch-clauses ; a Lisp list of `js2-catch-node'
(js2-print-ast finally i)
(insert "\n"))))
-(defstruct (js2-catch-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-catch-node (&key (type js2-CATCH)
- (pos js2-ts-cursor)
- len
- param
- guard-kwd
- guard-expr
- block lp
- rp)))
+(cl-defstruct (js2-catch-node
+ (:include js2-scope)
+ (:constructor nil)
+ (:constructor make-js2-catch-node (&key (type js2-CATCH)
+ (pos js2-ts-cursor)
+ len
+ param
+ guard-kwd
+ guard-expr
+ lp rp)))
"AST node for a catch clause."
param ; destructuring form or simple name node
guard-kwd ; relative buffer position of "if" in "catch (x if ...)"
guard-expr ; catch condition, a `js2-node'
- block ; statements, a `js2-block-node'
lp ; buffer position of left-paren, nil if omitted
rp) ; buffer position of right-paren, nil if omitted
(js2-visit-ast (js2-catch-node-param n) v)
(when (js2-catch-node-guard-kwd n)
(js2-visit-ast (js2-catch-node-guard-expr n) v))
- (js2-visit-ast (js2-catch-node-block n) v))
+ (js2-visit-block n v))
(defun js2-print-catch-node (n i)
(let ((pad (js2-make-pad i))
(insert " if ")
(js2-print-ast guard-expr 0))
(insert ") {\n")
- (js2-print-body (js2-catch-node-block n) (1+ i))
+ (js2-print-body n (1+ i))
(insert pad "}")))
-(defstruct (js2-finally-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-finally-node (&key (type js2-FINALLY)
- (pos js2-ts-cursor)
- len body)))
+(cl-defstruct (js2-finally-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-finally-node (&key (type js2-FINALLY)
+ (pos js2-ts-cursor)
+ len body)))
"AST node for a finally clause."
body) ; a `js2-node', often but not always a block node
(js2-print-body (js2-finally-node-body n) (1+ i))
(insert pad "}\n")))
-(defstruct (js2-switch-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-switch-node (&key (type js2-SWITCH)
- (pos js2-ts-cursor)
- len
- discriminant
- cases lp
- rp)))
+(cl-defstruct (js2-switch-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-switch-node (&key (type js2-SWITCH)
+ (pos js2-ts-cursor)
+ len
+ discriminant
+ cases lp
+ rp)))
"AST node for a switch statement."
discriminant ; a `js2-node' (switch expression)
cases ; a Lisp list of `js2-case-node'
(js2-print-ast case i))
(insert pad "}\n")))
-(defstruct (js2-case-node
- (:include js2-block-node)
- (:constructor nil)
- (:constructor make-js2-case-node (&key (type js2-CASE)
- (pos js2-ts-cursor)
- len kids expr)))
+(cl-defstruct (js2-case-node
+ (:include js2-block-node)
+ (:constructor nil)
+ (:constructor make-js2-case-node (&key (type js2-CASE)
+ (pos js2-ts-cursor)
+ len kids expr)))
"AST node for a case clause of a switch statement."
expr) ; the case expression (nil for default)
(dolist (kid (js2-case-node-kids n))
(js2-print-ast kid (1+ i)))))
-(defstruct (js2-throw-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-throw-node (&key (type js2-THROW)
- (pos js2-ts-cursor)
- len expr)))
+(cl-defstruct (js2-throw-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-throw-node (&key (type js2-THROW)
+ (pos js2-ts-cursor)
+ len expr)))
"AST node for a throw statement."
expr) ; the expression to throw
(js2-print-ast (js2-throw-node-expr n) 0)
(insert ";\n"))
-(defstruct (js2-with-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-with-node (&key (type js2-WITH)
- (pos js2-ts-cursor)
- len object
- body lp rp)))
+(cl-defstruct (js2-with-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-with-node (&key (type js2-WITH)
+ (pos js2-ts-cursor)
+ len object
+ body lp rp)))
"AST node for a with-statement."
object
body
(js2-print-body (js2-with-node-body n) (1+ i))
(insert pad "}\n")))
-(defstruct (js2-label-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-label-node (&key (type js2-LABEL)
- (pos js2-ts-cursor)
- len name)))
+(cl-defstruct (js2-label-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-label-node (&key (type js2-LABEL)
+ (pos js2-ts-cursor)
+ len name)))
"AST node for a statement label or case label."
name ; a string
loop) ; for validating and code-generating continue-to-label
(js2-label-node-name n)
":\n"))
-(defstruct (js2-labeled-stmt-node
- (:include js2-node)
- (:constructor nil)
- ;; type needs to be in `js2-side-effecting-tokens' to avoid spurious
- ;; no-side-effects warnings, hence js2-EXPR_RESULT.
- (:constructor make-js2-labeled-stmt-node (&key (type js2-EXPR_RESULT)
- (pos js2-ts-cursor)
- len labels stmt)))
+(cl-defstruct (js2-labeled-stmt-node
+ (:include js2-node)
+ (:constructor nil)
+ ;; type needs to be in `js2-side-effecting-tokens' to avoid spurious
+ ;; no-side-effects warnings, hence js2-EXPR_RESULT.
+ (:constructor make-js2-labeled-stmt-node (&key (type js2-EXPR_RESULT)
+ (pos js2-ts-cursor)
+ len labels stmt)))
"AST node for a statement with one or more labels.
Multiple labels for a statement are collapsed into the labels field."
labels ; Lisp list of `js2-label-node'
(defun js2-labeled-stmt-node-contains (node label)
"Return t if NODE contains LABEL in its label set.
NODE is a `js2-labels-node'. LABEL is an identifier."
- (loop for nl in (js2-labeled-stmt-node-labels node)
- if (string= label (js2-label-node-name nl))
- return t
- finally return nil))
+ (cl-loop for nl in (js2-labeled-stmt-node-labels node)
+ if (string= label (js2-label-node-name nl))
+ return t
+ finally return nil))
(defsubst js2-labeled-stmt-node-add-label (node label)
"Add a `js2-label-node' to the label set for this statement."
(setf (js2-labeled-stmt-node-labels node)
(nconc (js2-labeled-stmt-node-labels node) (list label))))
-(defstruct (js2-jump-node
- (:include js2-node)
- (:constructor nil))
+(cl-defstruct (js2-jump-node
+ (:include js2-node)
+ (:constructor nil))
"Abstract supertype of break and continue nodes."
label ; `js2-name-node' for location of label identifier, if present
target) ; target js2-labels-node or loop/switch statement
;; We don't visit the target, since it's a back-link.
(js2-visit-ast (js2-jump-node-label n) v))
-(defstruct (js2-break-node
- (:include js2-jump-node)
- (:constructor nil)
- (:constructor make-js2-break-node (&key (type js2-BREAK)
- (pos js2-ts-cursor)
- len label target)))
+(cl-defstruct (js2-break-node
+ (:include js2-jump-node)
+ (:constructor nil)
+ (:constructor make-js2-break-node (&key (type js2-BREAK)
+ (pos js2-ts-cursor)
+ len label target)))
"AST node for a break statement.
The label field is a `js2-name-node', possibly nil, for the named label
if provided. E.g. in 'break foo', it represents 'foo'. The target field
(js2-print-ast (js2-break-node-label n) 0))
(insert ";\n"))
-(defstruct (js2-continue-node
- (:include js2-jump-node)
- (:constructor nil)
- (:constructor make-js2-continue-node (&key (type js2-CONTINUE)
- (pos js2-ts-cursor)
- len label target)))
+(cl-defstruct (js2-continue-node
+ (:include js2-jump-node)
+ (:constructor nil)
+ (:constructor make-js2-continue-node (&key (type js2-CONTINUE)
+ (pos js2-ts-cursor)
+ len label target)))
"AST node for a continue statement.
The label field is the user-supplied enclosing label name, a `js2-name-node'.
It is nil if continue specifies no label. The target field is the jump target:
(js2-print-ast (js2-continue-node-label n) 0))
(insert ";\n"))
-(defstruct (js2-function-node
- (:include js2-script-node)
- (:constructor nil)
- (:constructor make-js2-function-node (&key (type js2-FUNCTION)
- (pos js2-ts-cursor)
- len
- (ftype 'FUNCTION)
- (form 'FUNCTION_STATEMENT)
- (name "")
- params rest-p
- body
- generator-type
- lp rp)))
+(cl-defstruct (js2-function-node
+ (:include js2-script-node)
+ (:constructor nil)
+ (:constructor make-js2-function-node (&key (type js2-FUNCTION)
+ (pos js2-ts-cursor)
+ len
+ (ftype 'FUNCTION)
+ (form 'FUNCTION_STATEMENT)
+ (name "")
+ params rest-p
+ body
+ generator-type
+ lp rp)))
"AST node for a function declaration.
The `params' field is a Lisp list of nodes. Each node is either a simple
`js2-name-node', or if it's a destructuring-assignment parameter, a
(insert " ")
(js2-print-ast name 0))
(insert "(")
- (loop with len = (length params)
- for param in params
- for count from 1
- do
- (when (and rest-p (= count len))
- (insert "..."))
- (js2-print-ast param 0)
- (when (< count len)
- (insert ", ")))
+ (cl-loop with len = (length params)
+ for param in params
+ for count from 1
+ do
+ (when (and rest-p (= count len))
+ (insert "..."))
+ (js2-print-ast param 0)
+ (when (< count len)
+ (insert ", ")))
(insert ") ")
(when arrow
(insert "=> "))
;; that work better if you assume it's an expression. Whenever we have
;; a standalone var/const declaration, we just wrap with an expr stmt.
;; Eclipse apparently screwed this up and now has two versions, expr and stmt.
-(defstruct (js2-var-decl-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-var-decl-node (&key (type js2-VAR)
- (pos (js2-current-token-beg))
- len kids
- decl-type)))
+(cl-defstruct (js2-var-decl-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-var-decl-node (&key (type js2-VAR)
+ (pos (js2-current-token-beg))
+ len kids
+ decl-type)))
"AST node for a variable declaration list (VAR, CONST or LET).
The node bounds differ depending on the declaration type. For VAR or
CONST declarations, the bounds include the var/const keyword. For LET
((= tt js2-CONST) "const ")
(t
(error "malformed var-decl node"))))
- (loop with kids = (js2-var-decl-node-kids n)
- with len = (length kids)
- for kid in kids
- for count from 1
- do
- (js2-print-ast kid 0)
- (if (< count len)
- (insert ", ")))))
-
-(defstruct (js2-var-init-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-var-init-node (&key (type js2-VAR)
- (pos js2-ts-cursor)
- len target
- initializer)))
+ (cl-loop with kids = (js2-var-decl-node-kids n)
+ with len = (length kids)
+ for kid in kids
+ for count from 1
+ do
+ (js2-print-ast kid 0)
+ (if (< count len)
+ (insert ", ")))))
+
+(cl-defstruct (js2-var-init-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-var-init-node (&key (type js2-VAR)
+ (pos js2-ts-cursor)
+ len target
+ initializer)))
"AST node for a variable declaration.
The type field will be js2-CONST for a const decl."
target ; `js2-name-node', `js2-object-node', or `js2-array-node'
(insert " = ")
(js2-print-ast init 0))))
-(defstruct (js2-cond-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-cond-node (&key (type js2-HOOK)
- (pos js2-ts-cursor)
- len
- test-expr
- true-expr
- false-expr
- q-pos c-pos)))
+(cl-defstruct (js2-cond-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-cond-node (&key (type js2-HOOK)
+ (pos js2-ts-cursor)
+ len
+ test-expr
+ true-expr
+ false-expr
+ q-pos c-pos)))
"AST node for the ternary operator"
test-expr
true-expr
(insert " : ")
(js2-print-ast (js2-cond-node-false-expr n) 0)))
-(defstruct (js2-infix-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-infix-node (&key type
- (pos js2-ts-cursor)
- len op-pos
- left right)))
+(cl-defstruct (js2-infix-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-infix-node (&key type
+ (pos js2-ts-cursor)
+ len op-pos
+ left right)))
"Represents infix expressions.
Includes assignment ops like `|=', and the comma operator.
The type field inherited from `js2-node' holds the operator."
(cons js2-ASSIGN_MUL "*=")
(cons js2-ASSIGN_DIV "/=")
(cons js2-ASSIGN_MOD "%="))))
- (loop for (k . v) in tokens do
- (puthash k v table))
+ (cl-loop for (k . v) in tokens do
+ (puthash k v table))
table))
(defun js2-print-infix-node (n i)
(insert " ")
(js2-print-ast (js2-infix-node-right n) 0)))
-(defstruct (js2-assign-node
- (:include js2-infix-node)
- (:constructor nil)
- (:constructor make-js2-assign-node (&key type
- (pos js2-ts-cursor)
- len op-pos
- left right)))
+(cl-defstruct (js2-assign-node
+ (:include js2-infix-node)
+ (:constructor nil)
+ (:constructor make-js2-assign-node (&key type
+ (pos js2-ts-cursor)
+ len op-pos
+ left right)))
"Represents any assignment.
The type field holds the actual assignment operator.")
(put 'cl-struct-js2-assign-node 'js2-visitor 'js2-visit-infix-node)
(put 'cl-struct-js2-assign-node 'js2-printer 'js2-print-infix-node)
-(defstruct (js2-unary-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-unary-node (&key type ; required
- (pos js2-ts-cursor)
- len operand)))
+(cl-defstruct (js2-unary-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-unary-node (&key type ; required
+ (pos js2-ts-cursor)
+ len operand)))
"AST node type for unary operator nodes.
The type field can be NOT, BITNOT, POS, NEG, INC, DEC,
TYPEOF, DELPROP or TRIPLEDOT. For INC or DEC, a 'postfix node
(when postfix
(insert op))))
-(defstruct (js2-let-node
- (:include js2-scope)
- (:constructor nil)
- (:constructor make-js2-let-node (&key (type js2-LETEXPR)
- (pos (js2-current-token-beg))
- len vars body
- lp rp)))
+(cl-defstruct (js2-let-node
+ (:include js2-scope)
+ (:constructor nil)
+ (:constructor make-js2-let-node (&key (type js2-LETEXPR)
+ (pos (js2-current-token-beg))
+ len vars body
+ lp rp)))
"AST node for a let expression or a let statement.
Note that a let declaration such as let x=6, y=7 is a `js2-var-decl-node'."
vars ; a `js2-var-decl-node'
(insert ") ")
(js2-print-ast (js2-let-node-body n) i))
-(defstruct (js2-keyword-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-keyword-node (&key type
- (pos (js2-current-token-beg))
- (len (- js2-ts-cursor pos)))))
+(cl-defstruct (js2-keyword-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-keyword-node (&key type
+ (pos (js2-current-token-beg))
+ (len (- js2-ts-cursor pos)))))
"AST node representing a literal keyword such as `null'.
Used for `null', `this', `true', `false' and `debugger'.
The node type is set to js2-NULL, js2-THIS, etc.")
(let ((type (js2-node-type node)))
(or (eq type js2-THIS) (eq type js2-SUPER))))
-(defstruct (js2-new-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-new-node (&key (type js2-NEW)
- (pos (js2-current-token-beg))
- len target
- args initializer
- lp rp)))
+(cl-defstruct (js2-new-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-new-node (&key (type js2-NEW)
+ (pos (js2-current-token-beg))
+ len target
+ args initializer
+ lp rp)))
"AST node for new-expression such as new Foo()."
target ; an identifier or reference
args ; a Lisp list of argument nodes
(insert " ")
(js2-print-ast (js2-new-node-initializer n))))
-(defstruct (js2-name-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-name-node (&key (type js2-NAME)
- (pos (js2-current-token-beg))
- (len (- js2-ts-cursor
- (js2-current-token-beg)))
- (name (js2-current-token-string)))))
+(cl-defstruct (js2-name-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-name-node (&key (type js2-NAME)
+ (pos (js2-current-token-beg))
+ (len (- js2-ts-cursor
+ (js2-current-token-beg)))
+ (name (js2-current-token-string)))))
"AST node for a JavaScript identifier"
name ; a string
scope) ; a `js2-scope' (optional, used for codegen)
(length (js2-name-node-name node))
0))
-(defstruct (js2-number-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-number-node (&key (type js2-NUMBER)
- (pos (js2-current-token-beg))
- (len (- js2-ts-cursor
- (js2-current-token-beg)))
- (value (js2-current-token-string))
- (num-value (js2-token-number
- (js2-current-token))))))
+(cl-defstruct (js2-number-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-number-node (&key (type js2-NUMBER)
+ (pos (js2-current-token-beg))
+ (len (- js2-ts-cursor
+ (js2-current-token-beg)))
+ (value (js2-current-token-string))
+ (num-value (js2-token-number
+ (js2-current-token))))))
"AST node for a number literal."
value ; the original string, e.g. "6.02e23"
num-value) ; the parsed number value
(insert (js2-make-pad i)
(number-to-string (js2-number-node-num-value n))))
-(defstruct (js2-regexp-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-regexp-node (&key (type js2-REGEXP)
- (pos (js2-current-token-beg))
- (len (- js2-ts-cursor
- (js2-current-token-beg)))
- value flags)))
+(cl-defstruct (js2-regexp-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-regexp-node (&key (type js2-REGEXP)
+ (pos (js2-current-token-beg))
+ (len (- js2-ts-cursor
+ (js2-current-token-beg)))
+ value flags)))
"AST node for a regular expression literal."
value ; the regexp string, without // delimiters
flags) ; a string of flags, e.g. `mi'.
(if (js2-regexp-node-flags n)
(insert (js2-regexp-node-flags n))))
-(defstruct (js2-string-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-string-node (&key (type js2-STRING)
- (pos (js2-current-token-beg))
- (len (- js2-ts-cursor
- (js2-current-token-beg)))
- (value (js2-current-token-string)))))
+(cl-defstruct (js2-string-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-string-node (&key (type js2-STRING)
+ (pos (js2-current-token-beg))
+ (len (- js2-ts-cursor
+ (js2-current-token-beg)))
+ (value (js2-current-token-string)))))
"String literal.
Escape characters are not evaluated; e.g. \n is 2 chars in value field.
You can tell the quote type by looking at the first character."
(insert (js2-make-pad i)
(js2-node-string n)))
-(defstruct (js2-template-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-template-node (&key (type js2-TEMPLATE_HEAD)
- beg len kids)))
+(cl-defstruct (js2-template-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-template-node (&key (type js2-TEMPLATE_HEAD)
+ beg len kids)))
"Template literal."
kids) ; `js2-string-node' is used for string segments, other nodes
; for substitutions inside.
(insert (js2-node-string kid))
(js2-print-ast kid))))
-(defstruct (js2-tagged-template-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-tagged-template-node (&key (type js2-TAGGED_TEMPLATE)
- beg len tag template)))
+(cl-defstruct (js2-tagged-template-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-tagged-template-node (&key (type js2-TAGGED_TEMPLATE)
+ beg len tag template)))
"Tagged template literal."
tag ; `js2-node' with the tag expression.
template) ; `js2-template-node' with the template.
(put 'cl-struct-js2-tagged-template-node 'js2-printer 'js2-print-tagged-template)
(defun js2-visit-tagged-template (n callback)
- (js2-visit-ast (js2-tagged-template-node-tag n) kid callback)
- (js2-visit-ast (js2-tagged-template-node-template n) kid callback))
+ (js2-visit-ast (js2-tagged-template-node-tag n) callback)
+ (js2-visit-ast (js2-tagged-template-node-template n) callback))
(defun js2-print-tagged-template (n i)
(insert (js2-make-pad i))
(js2-print-ast (js2-tagged-template-node-tag n))
(js2-print-ast (js2-tagged-template-node-template n)))
-(defstruct (js2-array-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-array-node (&key (type js2-ARRAYLIT)
- (pos js2-ts-cursor)
- len elems)))
+(cl-defstruct (js2-array-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-array-node (&key (type js2-ARRAYLIT)
+ (pos js2-ts-cursor)
+ len elems)))
"AST node for an array literal."
elems) ; list of expressions. [foo,,bar] yields a nil middle element.
(insert ",")))
(insert "]"))
-(defstruct (js2-class-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-class-node (&key (type js2-CLASS)
- (pos js2-ts-cursor)
- (form 'CLASS_STATEMENT)
- (name "")
- extends len elems)))
+(cl-defstruct (js2-class-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-class-node (&key (type js2-CLASS)
+ (pos js2-ts-cursor)
+ (form 'CLASS_STATEMENT)
+ (name "")
+ extends len elems)))
"AST node for an class expression.
`elems' is a list of `js2-object-prop-node', and `extends' is an
optional `js2-expr-node'"
(js2-print-ast elem (1+ i))))
(insert "\n" pad "}")))
-(defstruct (js2-object-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-object-node (&key (type js2-OBJECTLIT)
- (pos js2-ts-cursor)
- len
- elems)))
+(cl-defstruct (js2-object-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-object-node (&key (type js2-OBJECTLIT)
+ (pos js2-ts-cursor)
+ len
+ elems)))
"AST node for an object literal expression.
`elems' is a list of `js2-object-prop-node'."
elems)
(js2-print-list (js2-object-node-elems n))
(insert "}"))
-(defstruct (js2-object-prop-node
- (:include js2-infix-node)
- (:constructor nil)
- (:constructor make-js2-object-prop-node (&key (type js2-COLON)
- (pos js2-ts-cursor)
- len left
- right op-pos)))
+(cl-defstruct (js2-object-prop-node
+ (:include js2-infix-node)
+ (:constructor nil)
+ (:constructor make-js2-object-prop-node (&key (type js2-COLON)
+ (pos js2-ts-cursor)
+ len left
+ right op-pos)))
"AST node for an object literal prop:value entry.
The `left' field is the property: a name node, string node or number node.
The `right' field is a `js2-node' representing the initializer value.
(insert ": ")
(js2-print-ast (js2-object-prop-node-right n) 0)))))
-(defstruct (js2-getter-setter-node
- (:include js2-infix-node)
- (:constructor nil)
- (:constructor make-js2-getter-setter-node (&key type ; GET, SET, or FUNCTION
- (pos js2-ts-cursor)
- len left right)))
+(cl-defstruct (js2-getter-setter-node
+ (:include js2-infix-node)
+ (:constructor nil)
+ (:constructor make-js2-getter-setter-node (&key type ; GET, SET, or FUNCTION
+ (pos js2-ts-cursor)
+ len left right)))
"AST node for a getter/setter property in an object literal.
The `left' field is the `js2-name-node' naming the getter/setter prop.
The `right' field is always an anonymous `js2-function-node' with a node
(js2-print-ast left 0)
(js2-print-ast right 0)))
-(defstruct (js2-prop-get-node
- (:include js2-infix-node)
- (:constructor nil)
- (:constructor make-js2-prop-get-node (&key (type js2-GETPROP)
- (pos js2-ts-cursor)
- len left right)))
+(cl-defstruct (js2-prop-get-node
+ (:include js2-infix-node)
+ (:constructor nil)
+ (:constructor make-js2-prop-get-node (&key (type js2-GETPROP)
+ (pos js2-ts-cursor)
+ len left right)))
"AST node for a dotted property reference, e.g. foo.bar or foo().bar")
(put 'cl-struct-js2-prop-get-node 'js2-visitor 'js2-visit-prop-get-node)
(insert ".")
(js2-print-ast (js2-prop-get-node-right n) 0))
-(defstruct (js2-elem-get-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-elem-get-node (&key (type js2-GETELEM)
- (pos js2-ts-cursor)
- len target element
- lb rb)))
+(cl-defstruct (js2-elem-get-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-elem-get-node (&key (type js2-GETELEM)
+ (pos js2-ts-cursor)
+ len target element
+ lb rb)))
"AST node for an array index expression such as foo[bar]."
target ; a `js2-node' - the expression preceding the "."
element ; a `js2-node' - the expression in brackets
(js2-print-ast (js2-elem-get-node-element n) 0)
(insert "]"))
-(defstruct (js2-call-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-call-node (&key (type js2-CALL)
- (pos js2-ts-cursor)
- len target args
- lp rp)))
+(cl-defstruct (js2-call-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-call-node (&key (type js2-CALL)
+ (pos js2-ts-cursor)
+ len target args
+ lp rp)))
"AST node for a JavaScript function call."
target ; a `js2-node' evaluating to the function to call
args ; a Lisp list of `js2-node' arguments
(js2-print-list (js2-call-node-args n))
(insert ")"))
-(defstruct (js2-yield-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-yield-node (&key (type js2-YIELD)
- (pos js2-ts-cursor)
- len value star-p)))
+(cl-defstruct (js2-yield-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-yield-node (&key (type js2-YIELD)
+ (pos js2-ts-cursor)
+ len value star-p)))
"AST node for yield statement or expression."
star-p ; whether it's yield*
value) ; optional: value to be yielded
(insert " ")
(js2-print-ast (js2-yield-node-value n) 0)))
-(defstruct (js2-paren-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-paren-node (&key (type js2-LP)
- (pos js2-ts-cursor)
- len expr)))
+(cl-defstruct (js2-paren-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-paren-node (&key (type js2-LP)
+ (pos js2-ts-cursor)
+ len expr)))
"AST node for a parenthesized expression.
In particular, used when the parens are syntactically optional,
as opposed to required parens such as those enclosing an if-conditional."
(js2-print-ast (js2-paren-node-expr n) 0)
(insert ")"))
-(defstruct (js2-comp-node
- (:include js2-scope)
- (:constructor nil)
- (:constructor make-js2-comp-node (&key (type js2-ARRAYCOMP)
- (pos js2-ts-cursor)
- len result
- loops filters
- form)))
+(cl-defstruct (js2-comp-node
+ (:include js2-scope)
+ (:constructor nil)
+ (:constructor make-js2-comp-node (&key (type js2-ARRAYCOMP)
+ (pos js2-ts-cursor)
+ len result
+ loops filters
+ form)))
"AST node for an Array comprehension such as [[x,y] for (x in foo) for (y in bar)]."
result ; result expression (just after left-bracket)
loops ; a Lisp list of `js2-comp-loop-node'
(js2-print-ast result 0))
(insert (if gen-p ")" "]"))))
-(defstruct (js2-comp-loop-node
- (:include js2-for-in-node)
- (:constructor nil)
- (:constructor make-js2-comp-loop-node (&key (type js2-FOR)
- (pos js2-ts-cursor)
- len iterator
- object in-pos
- foreach-p
- each-pos
- forof-p
- lp rp)))
+(cl-defstruct (js2-comp-loop-node
+ (:include js2-for-in-node)
+ (:constructor nil)
+ (:constructor make-js2-comp-loop-node (&key (type js2-FOR)
+ (pos js2-ts-cursor)
+ len iterator
+ object in-pos
+ foreach-p
+ each-pos
+ forof-p
+ lp rp)))
"AST subtree for each 'for (foo in bar)' loop in an array comprehension.")
(put 'cl-struct-js2-comp-loop-node 'js2-visitor 'js2-visit-comp-loop)
(js2-print-ast (js2-comp-loop-node-object n) 0)
(insert ")"))
-(defstruct (js2-empty-expr-node
- (:include js2-node)
- (:constructor nil)
- (:constructor make-js2-empty-expr-node (&key (type js2-EMPTY)
- (pos (js2-current-token-beg))
- len)))
+(cl-defstruct (js2-empty-expr-node
+ (:include js2-node)
+ (:constructor nil)
+ (:constructor make-js2-empty-expr-node (&key (type js2-EMPTY)
+ (pos (js2-current-token-beg))
+ len)))
"AST node for an empty expression.")
(put 'cl-struct-js2-empty-expr-node 'js2-visitor 'js2-visit-none)
(put 'cl-struct-js2-empty-expr-node 'js2-printer 'js2-print-none)
-(defstruct (js2-xml-node
- (:include js2-block-node)
- (:constructor nil)
- (:constructor make-js2-xml-node (&key (type js2-XML)
- (pos (js2-current-token-beg))
- len kids)))
+(cl-defstruct (js2-xml-node
+ (:include js2-block-node)
+ (:constructor nil)
+ (:constructor make-js2-xml-node (&key (type js2-XML)
+ (pos (js2-current-token-beg))
+ len kids)))
"AST node for initial parse of E4X literals.
The kids field is a list of XML fragments, each a `js2-string-node' or
a `js2-xml-js-expr-node'. Equivalent to Rhino's XmlLiteral node.")
(dolist (kid (js2-xml-node-kids n))
(js2-print-ast kid i)))
-(defstruct (js2-xml-js-expr-node
- (:include js2-xml-node)
- (:constructor nil)
- (:constructor make-js2-xml-js-expr-node (&key (type js2-XML)
- (pos js2-ts-cursor)
- len expr)))
+(cl-defstruct (js2-xml-js-expr-node
+ (:include js2-xml-node)
+ (:constructor nil)
+ (:constructor make-js2-xml-js-expr-node (&key (type js2-XML)
+ (pos js2-ts-cursor)
+ len expr)))
"AST node for an embedded JavaScript {expression} in an E4X literal.
The start and end fields correspond to the curly-braces."
expr) ; a `js2-expr-node' of some sort
(js2-print-ast (js2-xml-js-expr-node-expr n) 0)
(insert "}"))
-(defstruct (js2-xml-dot-query-node
- (:include js2-infix-node)
- (:constructor nil)
- (:constructor make-js2-xml-dot-query-node (&key (type js2-DOTQUERY)
- (pos js2-ts-cursor)
- op-pos len left
- right rp)))
+(cl-defstruct (js2-xml-dot-query-node
+ (:include js2-infix-node)
+ (:constructor nil)
+ (:constructor make-js2-xml-dot-query-node (&key (type js2-DOTQUERY)
+ (pos js2-ts-cursor)
+ op-pos len left
+ right rp)))
"AST node for an E4X foo.(bar) filter expression.
Note that the left-paren is automatically the character immediately
following the dot (.) in the operator. No whitespace is permitted
(js2-print-ast (js2-xml-dot-query-node-right n) 0)
(insert ")"))
-(defstruct (js2-xml-ref-node
- (:include js2-node)
- (:constructor nil)) ; abstract
+(cl-defstruct (js2-xml-ref-node
+ (:include js2-node)
+ (:constructor nil)) ; abstract
"Base type for E4X XML attribute-access or property-get expressions.
Such expressions can take a variety of forms. The general syntax has
three parts:
(defsubst js2-xml-ref-node-attr-access-p (node)
"Return non-nil if this expression began with an @-token."
(and (numberp (js2-xml-ref-node-at-pos node))
- (plusp (js2-xml-ref-node-at-pos node))))
-
-(defstruct (js2-xml-prop-ref-node
- (:include js2-xml-ref-node)
- (:constructor nil)
- (:constructor make-js2-xml-prop-ref-node (&key (type js2-REF_NAME)
- (pos (js2-current-token-beg))
- len propname
- namespace at-pos
- colon-pos)))
+ (cl-plusp (js2-xml-ref-node-at-pos node))))
+
+(cl-defstruct (js2-xml-prop-ref-node
+ (:include js2-xml-ref-node)
+ (:constructor nil)
+ (:constructor make-js2-xml-prop-ref-node (&key (type js2-REF_NAME)
+ (pos (js2-current-token-beg))
+ len propname
+ namespace at-pos
+ colon-pos)))
"AST node for an E4X XML [expr] property-ref expression.
The JavaScript syntax is an optional @, an optional ns::, and a name.
(if (js2-xml-prop-ref-node-propname n)
(js2-print-ast (js2-xml-prop-ref-node-propname n) 0)))
-(defstruct (js2-xml-elem-ref-node
- (:include js2-xml-ref-node)
- (:constructor nil)
- (:constructor make-js2-xml-elem-ref-node (&key (type js2-REF_MEMBER)
- (pos (js2-current-token-beg))
- len expr lb rb
- namespace at-pos
- colon-pos)))
+(cl-defstruct (js2-xml-elem-ref-node
+ (:include js2-xml-ref-node)
+ (:constructor nil)
+ (:constructor make-js2-xml-elem-ref-node (&key (type js2-REF_MEMBER)
+ (pos (js2-current-token-beg))
+ len expr lb rb
+ namespace at-pos
+ colon-pos)))
"AST node for an E4X XML [expr] member-ref expression.
Syntax:
;;; Placeholder nodes for when we try parsing the XML literals structurally.
-(defstruct (js2-xml-start-tag-node
- (:include js2-xml-node)
- (:constructor nil)
- (:constructor make-js2-xml-start-tag-node (&key (type js2-XML)
- (pos js2-ts-cursor)
- len name attrs kids
- empty-p)))
+(cl-defstruct (js2-xml-start-tag-node
+ (:include js2-xml-node)
+ (:constructor nil)
+ (:constructor make-js2-xml-start-tag-node (&key (type js2-XML)
+ (pos js2-ts-cursor)
+ len name attrs kids
+ empty-p)))
"AST node for an XML start-tag. Not currently used.
The `kids' field is a Lisp list of child content nodes."
name ; a `js2-xml-name-node'
;; I -think- I'm going to make the parent node the corresponding start-tag,
;; and add the end-tag to the kids list of the parent as well.
-(defstruct (js2-xml-end-tag-node
- (:include js2-xml-node)
- (:constructor nil)
- (:constructor make-js2-xml-end-tag-node (&key (type js2-XML)
- (pos js2-ts-cursor)
- len name)))
+(cl-defstruct (js2-xml-end-tag-node
+ (:include js2-xml-node)
+ (:constructor nil)
+ (:constructor make-js2-xml-end-tag-node (&key (type js2-XML)
+ (pos js2-ts-cursor)
+ len name)))
"AST node for an XML end-tag. Not currently used."
name) ; a `js2-xml-name-node'
(js2-print-ast (js2-xml-end-tag-node-name n) 0)
(insert ">"))
-(defstruct (js2-xml-name-node
- (:include js2-xml-node)
- (:constructor nil)
- (:constructor make-js2-xml-name-node (&key (type js2-XML)
- (pos js2-ts-cursor)
- len namespace kids)))
+(cl-defstruct (js2-xml-name-node
+ (:include js2-xml-node)
+ (:constructor nil)
+ (:constructor make-js2-xml-name-node (&key (type js2-XML)
+ (pos js2-ts-cursor)
+ len namespace kids)))
"AST node for an E4X XML name. Not currently used.
Any XML name can be qualified with a namespace, hence the namespace field.
Further, any E4X name can be comprised of arbitrary JavaScript {} expressions.
(dolist (kid (js2-xml-name-node-kids n))
(js2-print-ast kid 0)))
-(defstruct (js2-xml-pi-node
- (:include js2-xml-node)
- (:constructor nil)
- (:constructor make-js2-xml-pi-node (&key (type js2-XML)
- (pos js2-ts-cursor)
- len name attrs)))
+(cl-defstruct (js2-xml-pi-node
+ (:include js2-xml-node)
+ (:constructor nil)
+ (:constructor make-js2-xml-pi-node (&key (type js2-XML)
+ (pos js2-ts-cursor)
+ len name attrs)))
"AST node for an E4X XML processing instruction. Not currently used."
name ; a `js2-xml-name-node'
attrs) ; a list of `js2-xml-attr-node'
(js2-print-list (js2-xml-pi-node-attrs n)))
(insert "?>"))
-(defstruct (js2-xml-cdata-node
- (:include js2-xml-node)
- (:constructor nil)
- (:constructor make-js2-xml-cdata-node (&key (type js2-XML)
- (pos js2-ts-cursor)
- len content)))
+(cl-defstruct (js2-xml-cdata-node
+ (:include js2-xml-node)
+ (:constructor nil)
+ (:constructor make-js2-xml-cdata-node (&key (type js2-XML)
+ (pos js2-ts-cursor)
+ len content)))
"AST node for a CDATA escape section. Not currently used."
content) ; a `js2-string-node' with node-property 'quote-type 'cdata
(insert (js2-make-pad i))
(js2-print-ast (js2-xml-cdata-node-content n)))
-(defstruct (js2-xml-attr-node
- (:include js2-xml-node)
- (:constructor nil)
- (:constructor make-js2-attr-node (&key (type js2-XML)
- (pos js2-ts-cursor)
- len name value
- eq-pos quote-type)))
+(cl-defstruct (js2-xml-attr-node
+ (:include js2-xml-node)
+ (:constructor nil)
+ (:constructor make-js2-attr-node (&key (type js2-XML)
+ (pos js2-ts-cursor)
+ len name value
+ eq-pos quote-type)))
"AST node representing a foo='bar' XML attribute value. Not yet used."
name ; a `js2-xml-name-node'
value ; a `js2-xml-name-node'
(js2-print-ast (js2-xml-attr-node-value n) 0)
(insert quote)))
-(defstruct (js2-xml-text-node
- (:include js2-xml-node)
- (:constructor nil)
- (:constructor make-js2-text-node (&key (type js2-XML)
- (pos js2-ts-cursor)
- len content)))
+(cl-defstruct (js2-xml-text-node
+ (:include js2-xml-node)
+ (:constructor nil)
+ (:constructor make-js2-text-node (&key (type js2-XML)
+ (pos js2-ts-cursor)
+ len content)))
"AST node for an E4X XML text node. Not currently used."
content) ; a Lisp list of `js2-string-node' and `js2-xml-js-expr-node'
(dolist (kid (js2-xml-text-node-content n))
(js2-print-ast kid)))
-(defstruct (js2-xml-comment-node
- (:include js2-xml-node)
- (:constructor nil)
- (:constructor make-js2-xml-comment-node (&key (type js2-XML)
- (pos js2-ts-cursor)
- len)))
+(cl-defstruct (js2-xml-comment-node
+ (:include js2-xml-node)
+ (:constructor nil)
+ (:constructor make-js2-xml-comment-node (&key (type js2-XML)
+ (pos js2-ts-cursor)
+ len)))
"AST node for E4X XML comment. Not currently used.")
(put 'cl-struct-js2-xml-comment-node 'js2-visitor 'js2-visit-none)
(defsubst js2-block-node-first (n)
"Return first child of block node N, or nil if there is none."
- (first (js2-block-node-kids n)))
+ (cl-first (js2-block-node-kids n)))
(defun js2-node-root (n)
"Return the root of the AST containing N.
(cond
(end-p
;; this evaluates to a non-nil return value, even if it's zero
- (decf js2-visitor-offset rel-pos))
+ (cl-decf js2-visitor-offset rel-pos))
;; we already looked for comments before visiting, and don't want them now
((js2-comment-node-p node)
nil)
(t
- (setq abs-pos (incf js2-visitor-offset rel-pos)
+ (setq abs-pos (cl-incf js2-visitor-offset rel-pos)
;; we only want to use the node if the point is before
;; the last character position in the node, so we decrement
;; the absolute end by 1.
(js2-print-ast node indent)))
(defun js2-print-list (args &optional delimiter)
- (loop with len = (length args)
- for arg in args
- for count from 1
- do
- (when arg (js2-print-ast arg 0))
- (if (< count len)
- (insert (or delimiter ", ")))))
+ (cl-loop with len = (length args)
+ for arg in args
+ for count from 1
+ do
+ (when arg (js2-print-ast arg 0))
+ (if (< count len)
+ (insert (or delimiter ", ")))))
(defun js2-print-tree (ast)
"Prints an AST to the current buffer.
js2-CONTINUE
js2-DEFAULT ; e4x "default xml namespace" statement
js2-DO
+ js2-EXPORT
js2-EXPR_RESULT
js2-EXPR_VOID
js2-FOR
js2-IF
+ js2-IMPORT
js2-RETURN
js2-SWITCH
js2-THROW
(js2-set-flag rv (js2-end-check (js2-try-node-try-block node)))
;; check each catch block
(dolist (cb (js2-try-node-catch-clauses node))
- (js2-set-flag rv (js2-end-check (js2-catch-node-block cb)))))
+ (js2-set-flag rv (js2-end-check cb))))
rv))
(defun js2-end-check-loop (node)
(let* ((names (make-vector js2-num-tokens -1))
(case-fold-search nil) ; only match js2-UPPER_CASE
(syms (apropos-internal "^js2-\\(?:[[:upper:]_]+\\)")))
- (loop for sym in syms
- for i from 0
- do
- (unless (or (memq sym '(js2-EOF_CHAR js2-ERROR))
- (not (boundp sym)))
- (aset names (symbol-value sym) ; code, e.g. 152
- (downcase
- (substring (symbol-name sym) 4))) ; name, e.g. "let"
- (push sym js2-tokens)))
+ (cl-loop for sym in syms
+ for i from 0
+ do
+ (unless (or (memq sym '(js2-EOF_CHAR js2-ERROR))
+ (not (boundp sym)))
+ (aset names (symbol-value sym) ; code, e.g. 152
+ (downcase
+ (substring (symbol-name sym) 4))) ; name, e.g. "let"
+ (push sym js2-tokens)))
names)
"Vector mapping int values to token string names, sans `js2-' prefix.")
(if (eq code -1)
"ERROR"
(if (and (numberp code)
- (not (minusp code))
+ (not (cl-minusp code))
(< code js2-num-tokens))
(aref js2-token-names code)
(error "Invalid token: %s" code)))))
(defconst js2-token-codes
(let ((table (make-hash-table :test 'eq :size 256)))
- (loop for name across js2-token-names
- for sym = (intern (concat "js2-" (upcase name)))
- do
- (puthash sym (symbol-value sym) table))
+ (cl-loop for name across js2-token-names
+ for sym = (intern (concat "js2-" (upcase name)))
+ do
+ (puthash sym (symbol-value sym) table))
;; clean up a few that are "wrong" in Rhino's token codes
(puthash 'js2-DELETE js2-DELPROP table)
table)
;; any other character: when it's not part of the current token, we
;; unget it, allowing it to be read again by the following call.
(defsubst js2-unget-char ()
- (decf js2-ts-cursor))
+ (cl-decf js2-ts-cursor))
;; Rhino distinguishes \r and \n line endings. We don't need to
;; because we only scan from Emacs buffers, which always use \n.
js2-ts-cursor (1+ js2-ts-cursor)
c js2-EOF_CHAR) ; return value
;; otherwise read next char
- (setq c (char-before (incf js2-ts-cursor)))
+ (setq c (char-before (cl-incf js2-ts-cursor)))
;; if we read a newline, update counters
(if (= c ?\n)
(setq js2-ts-line-start js2-ts-cursor
'(break
case catch class const continue
debugger default delete do
- else extends
+ else extends export
false finally for function
if in instanceof import
let
(list js2-BREAK
js2-CASE js2-CATCH js2-CLASS js2-CONST js2-CONTINUE
js2-DEBUGGER js2-DEFAULT js2-DELPROP js2-DO
- js2-ELSE js2-EXTENDS
+ js2-ELSE js2-EXPORT
+ js2-ELSE js2-EXTENDS js2-EXPORT
js2-FALSE js2-FINALLY js2-FOR js2-FUNCTION
js2-IF js2-IN js2-INSTANCEOF js2-IMPORT
js2-LET
(defconst js2-keyword-names
(let ((table (make-hash-table :test 'equal)))
- (loop for k in js2-keywords
- do (puthash
- (symbol-name k) ; instanceof
- (intern (concat "js2-"
- (upcase (symbol-name k)))) ; js2-INSTANCEOF
- table))
+ (cl-loop for k in js2-keywords
+ do (puthash
+ (symbol-name k) ; instanceof
+ (intern (concat "js2-"
+ (upcase (symbol-name k)))) ; js2-INSTANCEOF
+ table))
table)
"JavaScript keywords by name, mapped to their symbols.")
(defconst js2-reserved-word-names
(let ((table (make-hash-table :test 'equal)))
- (loop for k in js2-reserved-words
- do
- (puthash (symbol-name k) 'js2-RESERVED table))
+ (cl-loop for k in js2-reserved-words
+ do
+ (puthash (symbol-name k) 'js2-RESERVED table))
table)
"JavaScript reserved words by name, mapped to 'js2-RESERVED.")
;; Use 0..9 < A..Z < a..z
(cond
((<= c ?9)
- (decf c ?0)
+ (cl-decf c ?0)
(if (<= 0 c)
(throw 'check nil)))
((<= c ?F)
(when (<= ?A c)
- (decf c (- ?A 10))
+ (cl-decf c (- ?A 10))
(throw 'check nil)))
((<= c ?f)
(when (<= ?a c)
- (decf c (- ?a 10))
+ (cl-decf c (- ?a 10))
(throw 'check nil))))
(throw 'return -1))
(logior c (lsh accumulator 4))))
the token is flagged as such."
(if (zerop js2-ti-lookahead)
(js2-get-token-internal modifier)
- (decf js2-ti-lookahead)
+ (cl-decf js2-ti-lookahead)
(setq js2-ti-tokens-cursor (mod (1+ js2-ti-tokens-cursor) js2-ti-ntokens))
(let ((tt (js2-current-token-type)))
- (assert (not (= tt js2-EOL)))
+ (cl-assert (not (= tt js2-EOL)))
tt)))
(defun js2-unget-token ()
- (assert (< js2-ti-lookahead js2-ti-max-lookahead))
- (incf js2-ti-lookahead)
+ (cl-assert (< js2-ti-lookahead js2-ti-max-lookahead))
+ (cl-incf js2-ti-lookahead)
(setq js2-ti-tokens-cursor (mod (1- js2-ti-tokens-cursor) js2-ti-ntokens)))
(defun js2-get-token-internal (modifier)
;; perform lexical fontification as soon as token is scanned
(when js2-parse-ide-mode
(cond
- ((minusp tt)
+ ((cl-minusp tt)
(js2-record-face 'js2-error token))
((setq face (aref js2-kwd-tokens tt))
(js2-record-face face token))
(js2-record-face 'font-lock-constant-face token))))
tt))
+(defsubst js2-string-to-number (str base)
+ ;; TODO: Maybe port ScriptRuntime.stringToNumber.
+ (condition-case nil
+ (string-to-number str base)
+ (overflow-error -1)))
+
(defun js2-get-token-internal-1 (modifier)
"Return next JavaScript token type, an int such as js2-RETURN.
During operation, creates an instance of `js2-token' struct, sets
(setq c (js2-get-char)
escape-val (js2-x-digit-to-int c escape-val))
;; Next check takes care of c < 0 and bad escape
- (if (minusp escape-val)
+ (if (cl-minusp escape-val)
(throw 'break nil)))
- (if (minusp escape-val)
+ (if (cl-minusp escape-val)
(js2-report-scan-error "msg.invalid.escape" t))
(js2-add-to-string escape-val)
(setq is-unicode-escape-start nil))
(setq base 8))))
(when (and (eq base 10) (memq c '(?. ?e ?E)))
(when (eq c ?.)
- (loop do
- (js2-add-to-string c)
- (setq c (js2-get-char))
- while (js2-digit-p c)))
+ (cl-loop do
+ (js2-add-to-string c)
+ (setq c (js2-get-char))
+ while (js2-digit-p c)))
(when (memq c '(?e ?E))
(js2-add-to-string c)
(setq c (js2-get-char))
(setq c (js2-get-char)))
(unless (js2-digit-p c)
(js2-report-scan-error "msg.missing.exponent" t))
- (loop do
- (js2-add-to-string c)
- (setq c (js2-get-char))
- while (js2-digit-p c))))
+ (cl-loop do
+ (js2-add-to-string c)
+ (setq c (js2-get-char))
+ while (js2-digit-p c))))
(js2-unget-char)
(let ((str (js2-set-string-from-buffer token)))
(setf (js2-token-number token)
(js2-string-to-number str base)))
(throw 'return js2-NUMBER))
;; is it a string?
- (when (memq c '(?\" ?\' ?`))
+ (when (or (memq c '(?\" ?\'))
+ (and (>= js2-language-version 200)
+ (= c ?`)))
(throw 'return
(js2-get-string-or-template-token c token)))
(js2-ts-return token
- (case c
+ (cl-case c
(?\;
(throw 'return js2-SEMI))
(?\[
(js2-skip-line)
(setf (js2-token-comment-type token) 'line)
;; include newline so highlighting goes to end of window
- (incf (js2-token-end token))
+ (cl-incf (js2-token-end token))
(throw 'return js2-COMMENT))
;; is it a /* comment?
(when (js2-match-char ?*)
(when (eq c ?\\)
;; We've hit an escaped character
(setq c (js2-get-char))
- (case c
+ (cl-case c
(?b (setq c ?\b))
(?f (setq c ?\f))
(?n (setq c ?\n))
(dotimes (_ 4)
(setq c (js2-get-char)
escape-val (js2-x-digit-to-int c escape-val))
- (if (minusp escape-val)
+ (if (cl-minusp escape-val)
(throw 'continue nil))
(js2-add-to-string c))
;; prepare for replace of stored 'u' sequence by escape value
;; sequence, as above.
(setq c (js2-get-char)
escape-val (js2-x-digit-to-int c 0))
- (if (minusp escape-val)
+ (if (cl-minusp escape-val)
(progn
(js2-add-to-string ?x)
(throw 'continue nil))
(setq c1 c
c (js2-get-char)
escape-val (js2-x-digit-to-int c escape-val))
- (if (minusp escape-val)
+ (if (cl-minusp escape-val)
(progn
(js2-add-to-string ?x)
(js2-add-to-string c1)
js2-TEMPLATE_HEAD
js2-NO_SUBS_TEMPLATE))))
-(defsubst js2-string-to-number (str base)
- ;; TODO: Maybe port ScriptRuntime.stringToNumber.
- (condition-case nil
- (string-to-number str base)
- (overflow-error -1)))
-
(defun js2-read-regexp (start-tt)
"Called by parser when it gets / or /= in literal context."
(let (c err
((= c js2-EOF_CHAR)
(throw 'return js2-ERROR))
(js2-ts-xml-is-tag-content
- (case c
+ (cl-case c
(?>
(js2-add-to-string c)
(setq js2-ts-xml-is-tag-content nil
(setq c (js2-get-char))
(js2-add-to-string c)
(setq js2-ts-xml-is-tag-content nil)
- (decf js2-ts-xml-open-tags-count)))
+ (cl-decf js2-ts-xml-open-tags-count)))
(?{
(js2-unget-char)
(js2-set-string-from-buffer token)
(throw 'return js2-XMLEND)))
(t
;; else not tag content
- (case c
+ (cl-case c
(?<
(js2-add-to-string c)
(setq c (js2-peek-char))
- (case c
+ (cl-case c
(?!
(setq c (js2-get-char)) ;; skip !
(js2-add-to-string c)
(setq c (js2-peek-char))
- (case c
+ (cl-case c
(?-
(setq c (js2-get-char)) ;; skip -
(js2-add-to-string c)
(js2-xml-discard-string token)
(throw 'return js2-ERROR))
(setq js2-ts-xml-is-tag-content t)
- (decf js2-ts-xml-open-tags-count))
+ (cl-decf js2-ts-xml-open-tags-count))
(t
;; start tag
(setq js2-ts-xml-is-tag-content t)
- (incf js2-ts-xml-open-tags-count))))
+ (cl-incf js2-ts-xml-open-tags-count))))
(?{
(js2-unget-char)
(js2-set-string-from-buffer token)
(catch 'return
(while (/= js2-EOF_CHAR (setq c (js2-get-char)))
(js2-add-to-string c)
- (case c
+ (cl-case c
(?<
- (incf decl-tags))
+ (cl-incf decl-tags))
(?>
- (decf decl-tags)
+ (cl-decf decl-tags)
(if (zerop decl-tags)
(throw 'return t)))))
(js2-xml-discard-string token)
(defun js2-set-face (beg end face &optional record)
"Fontify a region. If RECORD is non-nil, record for later."
- (when (plusp js2-highlight-level)
+ (when (cl-plusp js2-highlight-level)
(setq beg (min (point-max) beg)
beg (max (point-min) beg)
end (min (point-max) end)
it is considered declared."
(let (name)
(dolist (entry js2-recorded-identifiers)
- (destructuring-bind (name-node scope pos end) entry
+ (cl-destructuring-bind (name-node scope pos end) entry
(setq name (js2-name-node-name name-node))
(unless (or (member name js2-global-externs)
(member name js2-default-externs)
js2-additional-externs)))
(defun js2-get-jslint-globals ()
- (loop for node in (js2-ast-root-comments js2-mode-ast)
- when (and (eq 'block (js2-comment-node-format node))
- (save-excursion
- (goto-char (js2-node-abs-pos node))
- (looking-at "/\\*global ")))
- append (js2-get-jslint-globals-in
- (match-end 0)
- (js2-node-abs-end node))))
+ (cl-loop for node in (js2-ast-root-comments js2-mode-ast)
+ when (and (eq 'block (js2-comment-node-format node))
+ (save-excursion
+ (goto-char (js2-node-abs-pos node))
+ (looking-at "/\\*global ")))
+ append (js2-get-jslint-globals-in
+ (match-end 0)
+ (js2-node-abs-end node))))
(defun js2-get-jslint-globals-in (beg end)
(let (res)
(let (result fn parent-qname p elem)
(dolist (entry js2-imenu-recorder)
;; function node goes first
- (destructuring-bind (current-fn &rest (&whole chain head &rest)) entry
+ (cl-destructuring-bind (current-fn &rest (&whole chain head &rest)) entry
;; Examine head's defining scope:
;; Pre-processed chain, or top-level/external, keep as-is.
(if (or (stringp head) (js2-node-top-level-decl-p head))
branch (js2-find-if (lambda (n)
(string= (car n) head))
trie)
- kids (second branch))
+ kids (cl-second branch))
(cond
;; case 1: this key isn't in the trie yet
((null branch)
(setcdr (last kids)
(list
(list (format "<definition-%d>"
- (1+ (loop for kid in kids
- count (eq ?< (aref (car kid) 0)))))
+ (1+ (cl-loop for kid in kids
+ count (eq ?< (aref (car kid) 0)))))
pos))))
;; case 4: key is there with kids, need to merge in our chain
(t
((listp (car trie))
(mapcar #'js2-flatten-trie trie))
(t
- (if (numberp (second trie))
- (cons (car trie) (second trie))
+ (if (numberp (cl-second trie))
+ (cons (car trie) (cl-second trie))
;; else pop list and append its kids
(apply #'append (list (car trie)) (js2-flatten-trie (cdr trie)))))))
nil))
(defsubst js2-inside-function ()
- (plusp js2-nesting-of-function))
+ (cl-plusp js2-nesting-of-function))
(defun js2-set-requires-activation ()
(if (js2-function-node-p js2-current-script-or-fn)
(defun js2-push-scope (scope)
"Push SCOPE, a `js2-scope', onto the lexical scope chain."
- (assert (js2-scope-p scope))
- (assert (null (js2-scope-parent-scope scope)))
- (assert (not (eq js2-current-scope scope)))
+ (cl-assert (js2-scope-p scope))
+ (cl-assert (null (js2-scope-parent-scope scope)))
+ (cl-assert (not (eq js2-current-scope scope)))
(setf (js2-scope-parent-scope scope) js2-current-scope
js2-current-scope scope))
js2-imenu-function-map nil
js2-label-set nil)
(js2-init-scanner)
- (setq ast (with-silent-modifications
- (js2-do-parse)))
+ (setq ast (js2-do-parse))
(unless js2-ts-hit-eof
(js2-report-error "msg.got.syntax.errors" (length js2-parsed-errors)))
(setf (js2-ast-root-errors ast) js2-parsed-errors
;; add comments to root in lexical order
(when js2-scanned-comments
;; if we find a comment beyond end of normal kids, use its end
- (setq end (max end (js2-node-end (first js2-scanned-comments))))
+ (setq end (max end (js2-node-end (cl-first js2-scanned-comments))))
(dolist (comment js2-scanned-comments)
(push comment (js2-ast-root-comments root))
(js2-node-add-children root comment)))
(pn (make-js2-block-node)) ; starts at LC position
tt
end)
- (incf js2-nesting-of-function)
+ (cl-incf js2-nesting-of-function)
(unwind-protect
(while (not (or (= (setq tt (js2-peek-token)) js2-ERROR)
(= tt js2-EOF)
(js2-parse-statement)
(js2-get-token)
(js2-parse-function-stmt))))
- (decf js2-nesting-of-function))
+ (cl-decf js2-nesting-of-function))
(setq end (js2-current-token-end)) ; assume no curly and leave at current token
(if (js2-must-match js2-RC "msg.no.brace.after.body" pos)
(setq end (js2-current-token-end)))
params param default-found rest-param-at)
(when paren-free-arrow
(js2-unget-token))
- (loop for tt = (js2-peek-token)
- do
- (cond
- ;; destructuring param
- ((and (not paren-free-arrow)
- (or (= tt js2-LB) (= tt js2-LC)))
- (js2-get-token)
- (when default-found
- (js2-report-error "msg.no.default.after.default.param"))
- (setq param (js2-parse-destruct-primary-expr))
- (js2-define-destruct-symbols param
- js2-LP
- 'js2-function-param)
- (push param params))
- ;; variable name
- (t
- (when (and (>= js2-language-version 200)
- (not paren-free-arrow)
- (js2-match-token js2-TRIPLEDOT)
- (not rest-param-at))
- ;; to report errors if there are more parameters
- (setq rest-param-at (length params)))
- (js2-must-match-name "msg.no.parm")
- (js2-record-face 'js2-function-param)
- (setq param (js2-create-name-node))
- (js2-define-symbol js2-LP (js2-current-token-string) param)
- ;; default parameter value
- (when (or (and default-found
- (not rest-param-at)
- (js2-must-match js2-ASSIGN
- "msg.no.default.after.default.param"
- (js2-node-pos param)
- (js2-node-len param)))
- (and (>= js2-language-version 200)
- (js2-match-token js2-ASSIGN)))
- (assert (not paren-free-arrow))
- (let* ((pos (js2-node-pos param))
- (tt (js2-current-token-type))
- (op-pos (- (js2-current-token-beg) pos))
- (left param)
- (right (js2-parse-assign-expr))
- (len (- (js2-node-end right) pos)))
- (setq param (make-js2-assign-node
- :type tt :pos pos :len len :op-pos op-pos
- :left left :right right)
- default-found t)
- (js2-node-add-children param left right)))
- (push param params)))
- (when (and rest-param-at (> (length params) (1+ rest-param-at)))
- (js2-report-error "msg.param.after.rest" nil
- (js2-node-pos param) (js2-node-len param)))
- while
- (js2-match-token js2-COMMA))
+ (cl-loop for tt = (js2-peek-token)
+ do
+ (cond
+ ;; destructuring param
+ ((and (not paren-free-arrow)
+ (or (= tt js2-LB) (= tt js2-LC)))
+ (js2-get-token)
+ (when default-found
+ (js2-report-error "msg.no.default.after.default.param"))
+ (setq param (js2-parse-destruct-primary-expr))
+ (js2-define-destruct-symbols param
+ js2-LP
+ 'js2-function-param)
+ (push param params))
+ ;; variable name
+ (t
+ (when (and (>= js2-language-version 200)
+ (not paren-free-arrow)
+ (js2-match-token js2-TRIPLEDOT)
+ (not rest-param-at))
+ ;; to report errors if there are more parameters
+ (setq rest-param-at (length params)))
+ (js2-must-match-name "msg.no.parm")
+ (js2-record-face 'js2-function-param)
+ (setq param (js2-create-name-node))
+ (js2-define-symbol js2-LP (js2-current-token-string) param)
+ ;; default parameter value
+ (when (or (and default-found
+ (not rest-param-at)
+ (js2-must-match js2-ASSIGN
+ "msg.no.default.after.default.param"
+ (js2-node-pos param)
+ (js2-node-len param)))
+ (and (>= js2-language-version 200)
+ (js2-match-token js2-ASSIGN)))
+ (cl-assert (not paren-free-arrow))
+ (let* ((pos (js2-node-pos param))
+ (tt (js2-current-token-type))
+ (op-pos (- (js2-current-token-beg) pos))
+ (left param)
+ (right (js2-parse-assign-expr))
+ (len (- (js2-node-end right) pos)))
+ (setq param (make-js2-assign-node
+ :type tt :pos pos :len len :op-pos op-pos
+ :left left :right right)
+ default-found t)
+ (js2-node-add-children param left right)))
+ (push param params)))
+ (when (and rest-param-at (> (length params) (1+ rest-param-at)))
+ (js2-report-error "msg.param.after.rest" nil
+ (js2-node-pos param) (js2-node-len param)))
+ while
+ (js2-match-token js2-COMMA))
(when (and (not paren-free-arrow)
(js2-must-match js2-RP "msg.no.paren.after.parms"))
(setf (js2-function-node-rp fn-node) (- (js2-current-token-beg) pos)))
(max (js2-node-abs-pos (js2-function-node-body fn-node))
(point-at-bol))))
(end (js2-current-token-end)))
- (if (plusp (js2-name-node-length name))
+ (if (cl-plusp (js2-name-node-length name))
(js2-add-strict-warning "msg.no.return.value"
(js2-name-node-name name) pos end)
(js2-add-strict-warning "msg.anon.no.return.value" nil pos end)))))
(when name
(js2-set-face (js2-node-pos name) (js2-node-end name)
'font-lock-function-name-face 'record)
- (when (plusp (js2-name-node-length name))
+ (when (and (eq function-type 'FUNCTION_STATEMENT)
+ (cl-plusp (js2-name-node-length name)))
;; Function statements define a symbol in the enclosing scope
(js2-define-symbol js2-FUNCTION (js2-name-node-name name) fn-node)))
- (if (or (js2-inside-function) (plusp js2-nesting-of-with))
+ (if (or (js2-inside-function) (cl-plusp js2-nesting-of-with))
;; 1. Nested functions are not affected by the dynamic scope flag
;; as dynamic scope is already a parent of their scope.
;; 2. Functions defined under the with statement also immune to
node are given relative start positions and correct lengths."
(let ((pn (or parent (make-js2-block-node)))
tt)
- (setf (js2-node-pos pn) (js2-current-token-beg))
(while (and (> (setq tt (js2-peek-token)) js2-EOF)
(/= tt js2-RC))
(js2-block-node-push pn (js2-parse-statement)))
(let (pn beg end)
;; coarse-grained user-interrupt check - needs work
(and js2-parse-interruptable-p
- (zerop (% (incf js2-parse-stmt-count)
+ (zerop (% (cl-incf js2-parse-stmt-count)
js2-statements-per-pause))
(input-pending-p)
(throw 'interrupted t))
(aset parsers js2-DEBUGGER #'js2-parse-debugger)
(aset parsers js2-DEFAULT #'js2-parse-default-xml-namespace)
(aset parsers js2-DO #'js2-parse-do)
+ (aset parsers js2-EXPORT #'js2-parse-export)
(aset parsers js2-FOR #'js2-parse-for)
(aset parsers js2-FUNCTION #'js2-parse-function-stmt)
(aset parsers js2-IF #'js2-parse-if)
+ (aset parsers js2-IMPORT #'js2-parse-import)
(aset parsers js2-LC #'js2-parse-block)
(aset parsers js2-LET #'js2-parse-let-stmt)
(aset parsers js2-NAME #'js2-parse-name-or-label)
:then-part if-true
:else-part if-false
:else-pos else-pos
- :lp (js2-relpos (second cond) pos)
- :rp (js2-relpos (third cond) pos)))
+ :lp (js2-relpos (cl-second cond) pos)
+ :rp (js2-relpos (cl-third cond) pos)))
(js2-node-add-children pn (car cond) if-true if-false)
pn))
+(defun js2-parse-import ()
+ "Parse import statement. The current token must be js2-IMPORT."
+ (unless (js2-ast-root-p js2-current-scope)
+ (js2-report-error "msg.mod.import.decl.at.top.level"))
+ (let ((beg (js2-current-token-beg)))
+ (cond ((js2-match-token js2-STRING)
+ (make-js2-import-node
+ :pos beg
+ :len (- (js2-current-token-end) beg)
+ :module-id (js2-current-token-string)))
+ (t
+ (let* ((import-clause (js2-parse-import-clause))
+ (from-clause (and import-clause (js2-parse-from-clause)))
+ (module-id (when from-clause (js2-from-clause-node-module-id from-clause)))
+ (node (make-js2-import-node
+ :pos beg
+ :len (- (js2-current-token-end) beg)
+ :import import-clause
+ :from from-clause
+ :module-id module-id)))
+ (when import-clause
+ (js2-node-add-children node import-clause))
+ (when from-clause
+ (js2-node-add-children node from-clause))
+ node)))))
+
+(defun js2-parse-import-clause ()
+ "Parse the bindings in an import statement.
+This can take many forms:
+
+ImportedDefaultBinding -> 'foo'
+NameSpaceImport -> '* as lib'
+NamedImports -> '{foo as bar, bang}'
+ImportedDefaultBinding , NameSpaceImport -> 'foo, * as lib'
+ImportedDefaultBinding , NamedImports -> 'foo, {bar, baz as bif}'
+
+Try to match namespace imports and named imports first because nothing can
+come after them. If it is an imported default binding, then it could have named
+imports or a namespace import that follows it.
+"
+ (let* ((beg (js2-current-token-beg))
+ (clause (make-js2-import-clause-node
+ :pos beg))
+ (children (list)))
+ (cond
+ ((js2-match-token js2-MUL)
+ (let ((ns-import (js2-parse-namespace-import)))
+ (when ns-import
+ (let ((name-node (js2-namespace-import-node-name ns-import)))
+ (js2-define-symbol
+ js2-LET (js2-name-node-name name-node) name-node t)))
+ (setf (js2-import-clause-node-namespace-import clause) ns-import)
+ (push ns-import children)))
+ ((js2-match-token js2-LC)
+ (let ((imports (js2-parse-export-bindings t)))
+ (setf (js2-import-clause-node-named-imports clause) imports)
+ (dolist (import imports)
+ (push import children)
+ (let ((name-node (js2-export-binding-node-local-name import)))
+ (when name-node
+ (js2-define-symbol
+ js2-LET (js2-name-node-name name-node) name-node t))))))
+ ((= (js2-peek-token) js2-NAME)
+ (let ((binding (js2-maybe-parse-export-binding)))
+ (let ((node-name (js2-export-binding-node-local-name binding)))
+ (js2-define-symbol js2-LET (js2-name-node-name node-name) node-name t))
+ (setf (js2-import-clause-node-default-binding clause) binding)
+ (push binding children))
+ (when (js2-match-token js2-COMMA)
+ (cond
+ ((js2-match-token js2-MUL)
+ (let ((ns-import (js2-parse-namespace-import)))
+ (let ((name-node (js2-namespace-import-node-name ns-import)))
+ (js2-define-symbol
+ js2-LET (js2-name-node-name name-node) name-node t))
+ (setf (js2-import-clause-node-namespace-import clause) ns-import)
+ (push ns-import children)))
+ ((js2-match-token js2-LC)
+ (let ((imports (js2-parse-export-bindings t)))
+ (setf (js2-import-clause-node-named-imports clause) imports)
+ (dolist (import imports)
+ (push import children)
+ (let ((name-node (js2-export-binding-node-local-name import)))
+ (when name-node
+ (js2-define-symbol
+ js2-LET (js2-name-node-name name-node) name-node t))))))
+ (t (js2-report-error "msg.syntax")))))
+ (t (js2-report-error "msg.mod.declaration.after.import")))
+ (setf (js2-node-len clause) (- (js2-current-token-end) beg))
+ (apply #'js2-node-add-children clause children)
+ clause))
+
+(defun js2-parse-namespace-import ()
+ "Parse a namespace import expression such as '* as bar'.
+The current token must be js2-MUL."
+ (let ((beg (js2-current-token-beg)))
+ (when (js2-must-match js2-NAME "msg.syntax")
+ (if (equal "as" (js2-current-token-string))
+ (when (js2-must-match-prop-name "msg.syntax")
+ (let ((node (make-js2-namespace-import-node
+ :pos beg
+ :len (- (js2-current-token-end) beg)
+ :name (make-js2-name-node
+ :pos (js2-current-token-beg)
+ :len (js2-current-token-end)
+ :name (js2-current-token-string)))))
+ (js2-node-add-children node (js2-namespace-import-node-name node))
+ node))
+ (js2-unget-token)
+ (js2-report-error "msg.syntax")))))
+
+
+(defun js2-parse-from-clause ()
+ "Parse the from clause in an import or export statement. E.g. from 'src/lib'"
+ (when (js2-must-match-name "msg.mod.from.after.import.spec.set")
+ (let ((beg (js2-current-token-beg)))
+ (if (equal "from" (js2-current-token-string))
+ (cond
+ ((js2-match-token js2-STRING)
+ (make-js2-from-clause-node
+ :pos beg
+ :len (- (js2-current-token-end) beg)
+ :module-id (js2-current-token-string)
+ :metadata-p nil))
+ ((js2-match-token js2-THIS)
+ (when (js2-must-match-name "msg.mod.spec.after.from")
+ (if (equal "module" (js2-current-token-string))
+ (make-js2-from-clause-node
+ :pos beg
+ :len (- (js2-current-token-end) beg)
+ :module-id "this"
+ :metadata-p t)
+ (js2-unget-token)
+ (js2-unget-token)
+ (js2-report-error "msg.mod.spec.after.from")
+ nil)))
+ (t (js2-report-error "msg.mod.spec.after.from") nil))
+ (js2-unget-token)
+ (js2-report-error "msg.mod.from.after.import.spec.set")
+ nil))))
+
+(defun js2-parse-export-bindings (&optional import-p)
+ "Parse a list of export binding expressions such as {}, {foo, bar}, and
+{foo as bar, baz as bang}. The current token must be
+js2-LC. Return a lisp list of js2-export-binding-node"
+ (let ((bindings (list)))
+ (while
+ (let ((binding (js2-maybe-parse-export-binding)))
+ (when binding
+ (push binding bindings))
+ (js2-match-token js2-COMMA)))
+ (when (js2-must-match js2-RC (if import-p
+ "msg.mod.rc.after.import.spec.list"
+ "msg.mod.rc.after.export.spec.list"))
+ (reverse bindings))))
+
+(defun js2-maybe-parse-export-binding ()
+ "Attempt to parse a binding expression found inside an import/export statement.
+This can take the form of either as single js2-NAME token as in 'foo' or as in a
+rebinding expression 'bar as foo'. If it matches, it will return an instance of
+js2-export-binding-node and consume all the tokens. If it does not match, it
+consumes no tokens."
+ (let ((extern-name (when (js2-match-prop-name) (js2-current-token-string)))
+ (beg (js2-current-token-beg))
+ (extern-name-len (js2-current-token-len))
+ (is-reserved-name (or (= (js2-current-token-type) js2-RESERVED)
+ (aref js2-kwd-tokens (js2-current-token-type)))))
+ (if extern-name
+ (let ((as (and (js2-match-token js2-NAME) (js2-current-token-string))))
+ (if (and as (equal "as" (js2-current-token-string)))
+ (let ((name
+ (or
+ (and (js2-match-token js2-DEFAULT) "default")
+ (and (js2-match-token js2-NAME) (js2-current-token-string)))))
+ (if name
+ (let ((node (make-js2-export-binding-node
+ :pos beg
+ :len (- (js2-current-token-end) beg)
+ :local-name (make-js2-name-node
+ :name name
+ :pos (js2-current-token-beg)
+ :len (js2-current-token-len))
+ :extern-name (make-js2-name-node
+ :name extern-name
+ :pos beg
+ :len extern-name-len))))
+ (js2-node-add-children
+ node
+ (js2-export-binding-node-local-name node)
+ (js2-export-binding-node-extern-name node))
+ node)
+ (js2-unget-token)
+ nil))
+ (when as (js2-unget-token))
+ (let* ((name-node (make-js2-name-node
+ :name (js2-current-token-string)
+ :pos (js2-current-token-beg)
+ :len (js2-current-token-len)))
+ (node (make-js2-export-binding-node
+ :pos (js2-current-token-beg)
+ :len (js2-current-token-len)
+ :local-name name-node
+ :extern-name name-node)))
+ (when is-reserved-name
+ (js2-report-error "msg.mod.as.after.reserved.word" extern-name))
+ (js2-node-add-children node name-node)
+ node)))
+ nil)))
+
(defun js2-parse-switch ()
"Parser for switch-statement. Last matched token must be js2-SWITCH."
(let ((pos (js2-current-token-beg))
body (js2-parse-statement)
(js2-while-node-body pn) body
(js2-node-len pn) (- (js2-node-end body) pos)
- (js2-while-node-lp pn) (js2-relpos (second cond) pos)
- (js2-while-node-rp pn) (js2-relpos (third cond) pos))
+ (js2-while-node-lp pn) (js2-relpos (cl-second cond) pos)
+ (js2-while-node-rp pn) (js2-relpos (cl-third cond) pos))
(js2-node-add-children pn body (car cond)))
(js2-exit-loop))
pn))
(js2-do-node-condition pn) (car cond)
(js2-do-node-body pn) body
end js2-ts-cursor
- (js2-do-node-lp pn) (js2-relpos (second cond) pos)
- (js2-do-node-rp pn) (js2-relpos (third cond) pos))
+ (js2-do-node-lp pn) (js2-relpos (cl-second cond) pos)
+ (js2-do-node-rp pn) (js2-relpos (cl-third cond) pos))
(js2-node-add-children pn (car cond) body))
(js2-exit-loop))
;; Always auto-insert semicolon to follow SpiderMonkey:
(setf (js2-node-len pn) (- end pos))
pn))
+(defun js2-parse-export ()
+ "Parse an export statement.
+The Last matched token must be js2-EXPORT. Currently, the 'default' and 'expr'
+expressions should only be either hoistable expressions (function or generator)
+or assignment expressions, but there is no checking to enforce that and so it
+will parse without error a small subset of
+invalid export statements."
+ (unless (js2-ast-root-p js2-current-scope)
+ (js2-report-error "msg.mod.export.decl.at.top.level"))
+ (let ((beg (js2-current-token-beg))
+ (children (list))
+ exports-list from-clause declaration default)
+ (cond
+ ((js2-match-token js2-MUL)
+ (setq from-clause (js2-parse-from-clause))
+ (when from-clause
+ (push from-clause children)))
+ ((js2-match-token js2-LC)
+ (setq exports-list (js2-parse-export-bindings))
+ (when exports-list
+ (dolist (export exports-list)
+ (push export children)))
+ (when (js2-match-token js2-NAME)
+ (if (equal "from" (js2-current-token-string))
+ (progn
+ (js2-unget-token)
+ (setq from-clause (js2-parse-from-clause)))
+ (js2-unget-token))))
+ ((js2-match-token js2-DEFAULT)
+ (setq default (js2-parse-expr)))
+ ((or (js2-match-token js2-VAR) (js2-match-token js2-CONST) (js2-match-token js2-LET))
+ (setq declaration (js2-parse-variables (js2-current-token-type) (js2-current-token-beg))))
+ (t
+ (setq declaration (js2-parse-expr))))
+ (when from-clause
+ (push from-clause children))
+ (when declaration
+ (push declaration children))
+ (when default
+ (push default children))
+ (let ((node (make-js2-export-node
+ :pos beg
+ :len (- (js2-current-token-end) beg)
+ :exports-list exports-list
+ :from-clause from-clause
+ :declaration declaration
+ :default default)))
+ (apply #'js2-node-add-children node children)
+ node)))
+
(defun js2-parse-for ()
- "Parser for for-statement. Last matched token must be js2-FOR.
-Parses for, for-in, and for each-in statements."
+ "Parse a for, for-in or for each-in statement.
+Last matched token must be js2-FOR."
(let ((for-pos (js2-current-token-beg))
pn is-for-each is-for-in-or-of is-for-of
in-pos each-pos tmp-pos
- init ; Node init is also foo in 'foo in object'
- cond ; Node cond is also object in 'foo in object'
- incr ; 3rd section of for-loop initializer
+ init ; Node init is also foo in 'foo in object'.
+ cond ; Node cond is also object in 'foo in object'.
+ incr ; 3rd section of for-loop initializer.
body tt lp rp)
;; See if this is a for each () instead of just a for ()
(when (js2-match-token js2-NAME)
pn))
(defun js2-parse-try ()
- "Parser for try-statement. Last matched token must be js2-TRY."
+ "Parse a try statement. Last matched token must be js2-TRY."
(let ((try-pos (js2-current-token-beg))
try-end
try-block
catch-blocks
finally-block
saw-default-catch
- peek
- param
- catch-cond
- catch-node
- guard-kwd
- catch-pos
- finally-pos
- pn
- block
- lp
- rp)
+ peek)
(if (/= (js2-peek-token) js2-LC)
(js2-report-error "msg.no.brace.try"))
(setq try-block (js2-parse-statement)
(cond
((= peek js2-CATCH)
(while (js2-match-token js2-CATCH)
- (setq catch-pos (js2-current-token-beg)
- guard-kwd nil
- catch-cond nil
- lp nil
- rp nil)
- (if saw-default-catch
- (js2-report-error "msg.catch.unreachable"))
- (if (js2-must-match js2-LP "msg.no.paren.catch")
- (setq lp (- (js2-current-token-beg) catch-pos)))
- (js2-push-scope (make-js2-scope))
- (let ((tt (js2-peek-token)))
- (cond
- ;; destructuring pattern
- ;; catch ({ message, file }) { ... }
- ((or (= tt js2-LB) (= tt js2-LC))
- (js2-get-token)
- (setq param (js2-parse-destruct-primary-expr))
- (js2-define-destruct-symbols param js2-LET nil))
- ;; simple name
- (t
- (js2-must-match-name "msg.bad.catchcond")
- (setq param (js2-create-name-node))
- (js2-define-symbol js2-LET (js2-current-token-string) param))))
- ;; pattern guard
- (if (js2-match-token js2-IF)
- (setq guard-kwd (- (js2-current-token-beg) catch-pos)
- catch-cond (js2-parse-expr))
- (setq saw-default-catch t))
- (if (js2-must-match js2-RP "msg.bad.catchcond")
- (setq rp (- (js2-current-token-beg) catch-pos)))
- (js2-must-match js2-LC "msg.no.brace.catchblock")
- (setq block (js2-parse-statements)
- try-end (js2-node-end block)
- catch-node (make-js2-catch-node :pos catch-pos
- :param param
- :guard-expr catch-cond
- :guard-kwd guard-kwd
- :block block
- :lp lp
- :rp rp))
- (js2-pop-scope)
- (if (js2-must-match js2-RC "msg.no.brace.after.body")
- (setq try-end (js2-current-token-beg)))
- (setf (js2-node-len block) (- try-end (js2-node-pos block))
- (js2-node-len catch-node) (- try-end catch-pos))
- (js2-node-add-children catch-node param catch-cond block)
- (push catch-node catch-blocks)))
+ (let* ((catch-pos (js2-current-token-beg))
+ (catch-node (make-js2-catch-node :pos catch-pos))
+ param
+ guard-kwd
+ catch-cond
+ lp rp)
+ (if saw-default-catch
+ (js2-report-error "msg.catch.unreachable"))
+ (if (js2-must-match js2-LP "msg.no.paren.catch")
+ (setq lp (- (js2-current-token-beg) catch-pos)))
+ (js2-push-scope catch-node)
+ (let ((tt (js2-peek-token)))
+ (cond
+ ;; Destructuring pattern:
+ ;; catch ({ message, file }) { ... }
+ ((or (= tt js2-LB) (= tt js2-LC))
+ (js2-get-token)
+ (setq param (js2-parse-destruct-primary-expr))
+ (js2-define-destruct-symbols param js2-LET nil))
+ ;; Simple name.
+ (t
+ (js2-must-match-name "msg.bad.catchcond")
+ (setq param (js2-create-name-node))
+ (js2-define-symbol js2-LET (js2-current-token-string) param))))
+ ;; Catch condition.
+ (if (js2-match-token js2-IF)
+ (setq guard-kwd (- (js2-current-token-beg) catch-pos)
+ catch-cond (js2-parse-expr))
+ (setq saw-default-catch t))
+ (if (js2-must-match js2-RP "msg.bad.catchcond")
+ (setq rp (- (js2-current-token-beg) catch-pos)))
+ (js2-must-match js2-LC "msg.no.brace.catchblock")
+ (js2-parse-statements catch-node)
+ (if (js2-must-match js2-RC "msg.no.brace.after.body")
+ (setq try-end (js2-current-token-end)))
+ (js2-pop-scope)
+ (setf (js2-node-len catch-node) (- try-end catch-pos)
+ (js2-catch-node-param catch-node) param
+ (js2-catch-node-guard-expr catch-node) catch-cond
+ (js2-catch-node-guard-kwd catch-node) guard-kwd
+ (js2-catch-node-lp catch-node) lp
+ (js2-catch-node-rp catch-node) rp)
+ (js2-node-add-children catch-node param catch-cond)
+ (push catch-node catch-blocks))))
((/= peek js2-FINALLY)
(js2-must-match js2-FINALLY "msg.try.no.catchfinally"
(js2-node-pos try-block)
(- (setq try-end (js2-node-end try-block))
(js2-node-pos try-block)))))
(when (js2-match-token js2-FINALLY)
- (setq finally-pos (js2-current-token-beg)
- block (js2-parse-statement)
- try-end (js2-node-end block)
- finally-block (make-js2-finally-node :pos finally-pos
- :len (- try-end finally-pos)
- :body block))
- (js2-node-add-children finally-block block))
- (setq pn (make-js2-try-node :pos try-pos
- :len (- try-end try-pos)
- :try-block try-block
- :finally-block finally-block))
- (js2-node-add-children pn try-block finally-block)
- ;; push them onto the try-node, which reverses and corrects their order
- (dolist (cb catch-blocks)
- (js2-node-add-children pn cb)
- (push cb (js2-try-node-catch-clauses pn)))
- pn))
+ (let ((finally-pos (js2-current-token-beg))
+ (block (js2-parse-statement)))
+ (setq try-end (js2-node-end block)
+ finally-block (make-js2-finally-node :pos finally-pos
+ :len (- try-end finally-pos)
+ :body block))
+ (js2-node-add-children finally-block block)))
+ (let ((pn (make-js2-try-node :pos try-pos
+ :len (- try-end try-pos)
+ :try-block try-block
+ :finally-block finally-block)))
+ (js2-node-add-children pn try-block finally-block)
+ ;; Push them onto the try-node, which reverses and corrects their order.
+ (dolist (cb catch-blocks)
+ (js2-node-add-children pn cb)
+ (push cb (js2-try-node-catch-clauses pn)))
+ pn)))
(defun js2-parse-throw ()
"Parser for throw-statement. Last matched token must be js2-THROW."
bundle)))
(defun js2-maybe-parse-label ()
- (assert (= (js2-current-token-type) js2-NAME))
+ (cl-assert (= (js2-current-token-type) js2-NAME))
(let (label-pos
(next-tt (js2-get-token))
(label-end (js2-current-token-end)))
(let* ((defining-scope (js2-get-defining-scope js2-current-scope name))
(symbol (if defining-scope
(js2-scope-get-symbol defining-scope name)))
- (sdt (if symbol (js2-symbol-decl-type symbol) -1)))
+ (sdt (if symbol (js2-symbol-decl-type symbol) -1))
+ (pos (if node (js2-node-abs-pos node)))
+ (len (if node (js2-node-len node))))
(cond
((and symbol ; already defined
(or (= sdt js2-CONST) ; old version is const
((= sdt js2-VAR) "msg.var.redecl")
((= sdt js2-FUNCTION) "msg.function.redecl")
(t "msg.parm.redecl"))
- name))
+ name pos len))
((= decl-type js2-LET)
(if (and (not ignore-not-in-block)
(or (= (js2-node-type js2-current-scope) js2-IF)
Returns the list in reverse order. Consumes the right-paren token."
(let (result)
(unless (js2-match-token js2-RP)
- (loop do
- (let ((tt (js2-get-token)))
- (if (= tt js2-YIELD)
- (js2-report-error "msg.yield.parenthesized"))
- (if (and (= tt js2-TRIPLEDOT)
- (>= js2-language-version 200))
- (push (js2-make-unary tt 'js2-parse-assign-expr) result)
- (js2-unget-token)
- (push (js2-parse-assign-expr) result)))
- while
- (js2-match-token js2-COMMA))
+ (cl-loop do
+ (let ((tt (js2-get-token)))
+ (if (= tt js2-YIELD)
+ (js2-report-error "msg.yield.parenthesized"))
+ (if (and (= tt js2-TRIPLEDOT)
+ (>= js2-language-version 200))
+ (push (js2-make-unary tt 'js2-parse-assign-expr) result)
+ (js2-unget-token)
+ (push (js2-parse-assign-expr) result)))
+ while
+ (js2-match-token js2-COMMA))
(js2-must-match js2-RP "msg.no.paren.arg")
result)))
;; it has to be an anonymous function, as we already parsed the name
(if (/= (js2-node-type fn) js2-FUNCTION)
(js2-report-error "msg.bad.prop")
- (if (plusp (length (js2-function-name fn)))
+ (if (cl-plusp (length (js2-function-name fn)))
(js2-report-error "msg.bad.prop")))
(js2-node-set-prop fn 'GETTER_SETTER type) ; for codegen
(setq end (js2-node-end fn)
(skip-chars-forward " \t\r\n")
(current-column))))
(when pos
- (incf pos js2-basic-offset)
+ (cl-incf pos js2-basic-offset)
(push pos positions))
;; Third likely point: same indent as previous line of code.
(setq computed-pos 0))
;; case 4: on intermediate position: cycle to next position
(t
- (setq computed-pos (js2-position (second pos) positions))))
+ (setq computed-pos (js2-position (cl-second pos) positions))))
;; see if any hooks want to indent; otherwise we do it
- (loop with result = nil
- for hook in js2-indent-hook
- while (null result)
- do
- (setq result (funcall hook positions computed-pos))
- finally do
- (unless (or result (null computed-pos))
- (indent-line-to (nth computed-pos positions)))))
+ (cl-loop with result = nil
+ for hook in js2-indent-hook
+ while (null result)
+ do
+ (setq result (funcall hook positions computed-pos))
+ finally do
+ (unless (or result (null computed-pos))
+ (indent-line-to (nth computed-pos positions)))))
;; finally
(if js2-mode-indent-inhibit-undo
(js2-bounce-indent indent-col parse-status bounce-backwards))
;; just indent to the guesser's likely spot
(t (indent-line-to indent-col))))
- (when (plusp offset)
+ (when (cl-plusp offset)
(forward-char offset)))))
(defun js2-indent-region (start end)
(setq next-error-function #'js2-next-error)
(js2-set-default-externs)
;; Experiment: make reparse-delay longer for longer files.
- (if (plusp js2-dynamic-idle-timer-adjust)
+ (if (cl-plusp js2-dynamic-idle-timer-adjust)
(setq js2-idle-timer-delay
(* js2-idle-timer-delay
(/ (point-max) js2-dynamic-idle-timer-adjust))))
(defvar js2-source-buffer nil "Linked source buffer for diagnostics view")
(make-variable-buffer-local 'js2-source-buffer)
-(defun* js2-display-error-list ()
+(cl-defun js2-display-error-list ()
"Display a navigable buffer listing parse errors/warnings."
(interactive)
(unless (js2-have-errors-p)
(message "No errors")
- (return-from js2-display-error-list))
- (labels ((annotate-list
- (lst type)
- "Add diagnostic TYPE and line number to errs list"
- (mapcar (lambda (err)
- (list err type (line-number-at-pos (nth 1 err))))
- lst)))
+ (cl-return-from js2-display-error-list))
+ (cl-labels ((annotate-list
+ (lst type)
+ "Add diagnostic TYPE and line number to errs list"
+ (mapcar (lambda (err)
+ (list err type (line-number-at-pos (nth 1 err))))
+ lst)))
(let* ((srcbuf (current-buffer))
(errbuf (get-buffer-create "*js-lint*"))
(errors (annotate-list
(when js2-mode-ast (js2-ast-root-warnings js2-mode-ast))
'js2-warning)) ; must be a valid face name
(all-errs (sort (append errors warnings)
- (lambda (e1 e2) (< (cadar e1) (cadar e2))))))
+ (lambda (e1 e2) (< (cl-cadar e1) (cl-cadar e2))))))
(with-current-buffer errbuf
(let ((inhibit-read-only t))
(erase-buffer)
(dolist (err all-errs)
- (destructuring-bind ((msg-key beg _end &rest) type line) err
+ (cl-destructuring-bind ((msg-key beg _end &rest) type line) err
(insert-text-button
(format "line %d: %s" line (js2-get-msg msg-key))
'face type
(setq font-lock-defaults '(nil t))
;; Experiment: make reparse-delay longer for longer files.
- (when (plusp js2-dynamic-idle-timer-adjust)
+ (when (cl-plusp js2-dynamic-idle-timer-adjust)
(setq js2-idle-timer-delay
(* js2-idle-timer-delay
(/ (point-max) js2-dynamic-idle-timer-adjust))))
(unwind-protect
(when (or js2-mode-buffer-dirty-p force)
(js2-remove-overlays)
- (with-silent-modifications
- (setq js2-mode-buffer-dirty-p nil
- js2-mode-fontifications nil
- js2-mode-deferred-properties nil)
- (if js2-mode-verbose-parse-p
- (message "parsing..."))
- (setq time
- (js2-time
- (setq interrupted-p
- (catch 'interrupted
- (js2-parse)
+ (setq js2-mode-buffer-dirty-p nil
+ js2-mode-fontifications nil
+ js2-mode-deferred-properties nil)
+ (if js2-mode-verbose-parse-p
+ (message "parsing..."))
+ (setq time
+ (js2-time
+ (setq interrupted-p
+ (catch 'interrupted
+ (js2-parse)
+ (with-silent-modifications
;; if parsing is interrupted, comments and regex
;; literals stay ignored by `parse-partial-sexp'
(remove-text-properties (point-min) (point-max)
(js2-mode-show-warnings)
(js2-mode-show-errors)
(if (>= js2-highlight-level 1)
- (js2-highlight-jsdoc js2-mode-ast))
- nil))))
- (if interrupted-p
- (progn
- ;; unfinished parse => try again
- (setq js2-mode-buffer-dirty-p t)
- (js2-mode-reset-timer))
- (if js2-mode-verbose-parse-p
- (message "Parse time: %s" time)))))
+ (js2-highlight-jsdoc js2-mode-ast)))
+ nil))))
+ (if interrupted-p
+ (progn
+ ;; unfinished parse => try again
+ (setq js2-mode-buffer-dirty-p t)
+ (js2-mode-reset-timer))
+ (if js2-mode-verbose-parse-p
+ (message "Parse time: %s" time))))
(setq js2-mode-parsing nil)
(unless interrupted-p
(setq js2-mode-parse-timer nil))))))
"Highlight a warning or error E with FACE.
E is a list of ((MSG-KEY MSG-ARG) BEG LEN OVERRIDE-FACE).
The last element is optional. When present, use instead of FACE."
- (let* ((key (first e))
- (beg (second e))
- (end (+ beg (third e)))
+ (let* ((key (cl-first e))
+ (beg (cl-second e))
+ (end (+ beg (cl-third e)))
;; Don't inadvertently go out of bounds.
(beg (max (point-min) (min beg (point-max))))
(end (max (point-min) (min end (point-max))))
- (js2-highlight-level 3) ; so js2-set-face is sure to fire
(ovl (make-overlay beg end)))
- (overlay-put ovl 'font-lock-face (or (fourth e) face))
+ (overlay-put ovl 'font-lock-face (or (cl-fourth e) face))
(overlay-put ovl 'js2-error t)
(put-text-property beg end 'help-echo (js2-get-msg key))
(put-text-property beg end 'point-entered #'js2-echo-error)))
(defun js2-error-at-point (&optional pos)
"Return non-nil if there's an error overlay at POS.
Defaults to point."
- (loop with pos = (or pos (point))
- for o in (overlays-at pos)
- thereis (overlay-get o 'js2-error)))
+ (cl-loop with pos = (or pos (point))
+ for o in (overlays-at pos)
+ thereis (overlay-get o 'js2-error)))
(defun js2-mode-apply-deferred-properties ()
"Apply fontifications and other text properties recorded during parsing."
- (when (plusp js2-highlight-level)
+ (when (cl-plusp js2-highlight-level)
;; We defer clearing faces as long as possible to eliminate flashing.
(js2-clear-face (point-min) (point-max))
;; Have to reverse the recorded fontifications list so that errors
;; and warnings overwrite the normal fontifications.
(dolist (f (nreverse js2-mode-fontifications))
- (put-text-property (first f) (second f) 'font-lock-face (third f)))
+ (put-text-property (cl-first f) (cl-second f) 'font-lock-face (cl-third f)))
(setq js2-mode-fontifications nil))
(dolist (p js2-mode-deferred-properties)
(apply #'put-text-property p))
(string= key "msg.equal.as.assign"))
(and js2-missing-semi-one-line-override
(string= key "msg.missing.semi")
- (let* ((beg (second e))
+ (let* ((beg (cl-second e))
(node (js2-node-at-point beg))
(fn (js2-mode-find-parent-fn node))
(body (and fn (js2-function-node-body fn)))
;; - if in statement block (e.g. function body), go to parent
;; - infix exprs like (foo in bar) - maybe go to beginning
;; of infix expr if in the right-side expression?
- ((and arg (minusp arg))
+ ((and arg (cl-minusp arg))
(dotimes (_ (- arg))
(js2-backward-sws)
(forward-char -1) ; Enter the node we backed up to.
(setq pos (js2-node-abs-end child)))
(setq pos (1+ rp))))
;; No parens or child nodes, looks for the end of the curren node.
- (incf pos (js2-node-len
- (if (js2-expr-stmt-node-p (js2-node-parent node))
- ;; Stop after the semicolon.
- (js2-node-parent node)
- node))))
+ (cl-incf pos (js2-node-len
+ (if (js2-expr-stmt-node-p (js2-node-parent node))
+ ;; Stop after the semicolon.
+ (js2-node-parent node)
+ node))))
(let ((state (save-excursion (parse-partial-sexp start pos))))
(goto-char (if (not (zerop (car state)))
(scan-sexps start 1)
(continue t)
(start (point))
(count (or arg 1))
- (backward (minusp count))
+ (backward (cl-minusp count))
(sorter (if backward '> '<))
(stopper (if backward '< '>))
(count (abs count))
all-errs err)
;; Sort by start position.
(setq errs (sort errs (lambda (e1 e2)
- (funcall sorter (second e1) (second e2))))
+ (funcall sorter (cl-second e1) (cl-second e2))))
all-errs errs)
;; Find nth error with pos > start.
(while (and errs continue)
- (when (funcall stopper (cadar errs) start)
+ (when (funcall stopper (cl-cadar errs) start)
(setq err (car errs))
- (if (zerop (decf count))
+ (if (zerop (cl-decf count))
(setq continue nil)))
(setq errs (cdr errs)))
;; Clear for `js2-echo-error'.
(message nil)
(if err
- (goto-char (second err))
+ (goto-char (cl-second err))
;; Wrap around to first error.
- (goto-char (second (car all-errs)))
+ (goto-char (cl-second (car all-errs)))
;; If we were already on it, echo msg again.
(if (= (point) start)
(js2-echo-error (point) (point)))))))
(not mark-active))
(let ((e last-input-event))
(ignore-errors
- (goto-char (cadadr e))))))
+ (goto-char (cl-cadadr e))))))
(defun js2-mode-create-imenu-index ()
"Return an alist for `imenu--index-alist'."
to beginning of previous script-level element.
With ARG N, do that N times. If N is negative, move forward."
(setq arg (or arg 1))
- (if (plusp arg)
+ (if (cl-plusp arg)
(let ((parent (js2-node-parent-script-or-fn (js2-node-at-point))))
(when (cond
((js2-function-node-p parent)