tree-sitter/spec/runtime/languages/javascript/literals.txt
Max Brunsfeld 1e79ed794b Allow multiple top-level nodes
Now, the root node of a document is always a document node.
It will often have only one child node which corresponds to the grammar's
start symbol, but not always. Currently, it may have more than one child
if there are ubiquitous tokens such as comments at the beginning of the
document. In the future, it will also be possible be possible to have multiple
for the document to have multiple children if the document is partially parsed.
2014-08-09 00:00:20 -07:00

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==========================================
parses regexes
==========================================
theFunction(/regex1/, /regex2/g);
---
(program (expression_statement (function_call (identifier)
(regex) (regex))))
==========================================
parses numbers
==========================================
theFunction(100.0, 200);
---
(program (expression_statement (function_call (identifier)
(number) (number))))
==========================================
parses strings
==========================================
theFunction('', "", 'single-quoted-string', "double-quoted-string");
---
(program (expression_statement (function_call (identifier)
(string) (string) (string) (string))))
==========================================
parses function expressions
==========================================
var x = {
theMethod: function(argA, argB) {
var x = argA;
}
};
---
(program
(var_declaration
(identifier)
(object (identifier) (function_expression
(formal_parameters (identifier) (identifier))
(statement_block (var_declaration (identifier) (identifier)))))))
==========================================
parses comments
==========================================
// this is the beginning of the script.
// here we go.
var thing = {
// this is a property.
// its value is a function.
key: function(x /* this is a parameter */) {
// this is a statement
doStuff();
}
};
---
(comment)
(comment)
(program
(var_declaration (identifier) (object
(comment)
(comment)
(identifier) (function_expression
(formal_parameters (identifier) (comment))
(statement_block
(comment)
(expression_statement (function_call (identifier))))))))
==========================================
parses comments within expressions
==========================================
y // comment
* z;
---
(program
(expression_statement (math_op (expression (identifier) (comment)) (identifier))))