290 lines
7.0 KiB
Plaintext
290 lines
7.0 KiB
Plaintext
============================================
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Automatic semicolon insertion
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============================================
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if (a) {
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var b = c
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d()
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e()
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return f
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}
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---
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(program
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(if_statement
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(parenthesized_expression (identifier))
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(statement_block
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(variable_declaration (variable_declarator (identifier) (identifier)))
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(expression_statement (call_expression (identifier) (arguments)))
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(expression_statement (call_expression (identifier) (arguments)))
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(return_statement (identifier)))))
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============================================
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Semicolon insertion before update expressions
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============================================
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if (a)
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d()
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++b
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if (a)
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d()
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--b
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---
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(program
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(if_statement
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(parenthesized_expression (identifier))
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(expression_statement
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(call_expression (identifier) (arguments))))
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(expression_statement (update_expression (identifier)))
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(if_statement
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(parenthesized_expression (identifier))
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(expression_statement
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(call_expression (identifier) (arguments))))
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(expression_statement (update_expression (identifier))))
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==========================================
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property access across lines
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==========================================
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object
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.someProperty
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.otherProperty
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---
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(program (expression_statement
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(member_expression
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(member_expression (identifier) (property_identifier))
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(property_identifier))))
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===========================================
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indented code after blocks
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===========================================
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function x() {}
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return z;
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---
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(program
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(function_declaration
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(identifier)
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(formal_parameters)
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(statement_block))
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(return_statement (identifier)))
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================================================
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operator expressions split across lines
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================================================
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a
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? b
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: c
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a
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|| b
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a
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^ b
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a
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!== b
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a
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!b; // standalone statement
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---
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(program
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(expression_statement (ternary_expression (identifier) (identifier) (identifier)))
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(expression_statement (binary_expression (identifier) (identifier)))
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(expression_statement (binary_expression (identifier) (identifier)))
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(expression_statement (binary_expression (identifier) (identifier)))
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(expression_statement (identifier))
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(expression_statement (unary_expression (identifier)))
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(comment))
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================================================
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Alphabetical infix operators split across lines
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================================================
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a
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i;
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a
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in b;
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a
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ins;
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a
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inst;
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a
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instanceof b;
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a
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instanceofX;
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---
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(program
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(expression_statement (identifier))
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(expression_statement (identifier))
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(expression_statement (binary_expression (identifier) (identifier)))
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(expression_statement (identifier))
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(expression_statement (identifier))
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(expression_statement (identifier))
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(expression_statement (identifier))
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(expression_statement (binary_expression (identifier) (identifier)))
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(expression_statement (identifier))
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(expression_statement (identifier)))
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===========================================
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Single-line if/else statements
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===========================================
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if (a) {b} else {c}
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---
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(program
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(if_statement (parenthesized_expression (identifier))
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(statement_block (expression_statement (identifier)))
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(else_clause
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(statement_block (expression_statement (identifier))))))
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===========================================
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single-line blocks without semicolons
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===========================================
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function a() {b}
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function c() {return d}
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---
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(program
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(function_declaration (identifier) (formal_parameters) (statement_block
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(expression_statement (identifier))))
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(function_declaration (identifier) (formal_parameters) (statement_block
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(return_statement (identifier)))))
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==============================================
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Multi-line chained expressions in var declarations
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==============================================
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var a = new A()
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.b({c: 'd'})
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.e()
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---
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(program
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(variable_declaration (variable_declarator
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(identifier)
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(call_expression
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(member_expression
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(call_expression
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(member_expression
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(new_expression (identifier) (arguments))
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(property_identifier))
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(arguments
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(object
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(pair (property_identifier) (string (string_fragment))))))
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(property_identifier))
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(arguments)))))
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==============================================
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if/for/while/do statements without semicolons
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==============================================
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if (a) { if (b) return c }
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if (d) { for (;;) break }
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if (e) { for (f in g) break }
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if (h) { for (i of j) continue }
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if (k) { while (l) break }
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if (m) { do { n; } while (o) }
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if (p) { var q }
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---
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(program
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(if_statement (parenthesized_expression (identifier)) (statement_block
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(if_statement
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(parenthesized_expression (identifier))
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(return_statement (identifier)))))
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(if_statement (parenthesized_expression (identifier)) (statement_block
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(for_statement
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(empty_statement)
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(empty_statement)
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(break_statement))))
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(if_statement (parenthesized_expression (identifier)) (statement_block
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(for_in_statement (identifier) (identifier)
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(break_statement))))
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(if_statement (parenthesized_expression (identifier)) (statement_block
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(for_in_statement (identifier) (identifier)
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(continue_statement))))
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(if_statement (parenthesized_expression (identifier)) (statement_block
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(while_statement
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(parenthesized_expression (identifier))
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(break_statement))))
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(if_statement (parenthesized_expression (identifier)) (statement_block
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(do_statement
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(statement_block (expression_statement (identifier)))
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(parenthesized_expression (identifier)))))
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(if_statement (parenthesized_expression (identifier)) (statement_block
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(variable_declaration (variable_declarator (identifier))))))
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=====================================================
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Single-line declarations without semicolons
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=====================================================
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function a () { function b () {} function *c () {} class D {} return }
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---
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(program
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(function_declaration (identifier) (formal_parameters) (statement_block
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(function_declaration (identifier) (formal_parameters) (statement_block))
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(generator_function_declaration (identifier) (formal_parameters) (statement_block))
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(class_declaration (identifier) (class_body))
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(return_statement))))
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=====================================================
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Comments after statements without semicolons
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=====================================================
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let a // comment at end of declaration
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// comment outside of declaration
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let b /* comment between declarators */, c
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/** comment with *stars* **/ /* comment with /slashes/ */
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/* third comment in a row */
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let d
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---
|
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(program
|
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(lexical_declaration
|
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(variable_declarator (identifier))
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(comment))
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(comment)
|
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(lexical_declaration
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(variable_declarator (identifier))
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(comment)
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(variable_declarator (identifier)))
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(comment)
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(comment)
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(comment)
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(lexical_declaration (variable_declarator (identifier))))
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