i582 61523ab396 internal: fixed parsing of expression new
1. Now, for the expression 'new A' the correct
values EndLine, EndPos, and not -1 will be set;
2. Also, for expressions from php5 '$a = &new Foo',
the condition for parsing is fixed when it is necessary
to set the Args values and the initialization of the
NewTkn field is added, in the case when this condition
is false.

## Problem description

The reason why the positions after parsing became
incorrect is that the check that is responsible for
separating expressions like 'new A' and 'new A (args)'
relied on comparison with nil, however, when the parser
was updated, 'ctor_arguments' began to return not nil,
but &ArgumentList{}, so the condition was always true,
and in this case, when calculating the position, the
second argument of the 'NewTokenNodePosition' function
was nil, which is why -1 was returned there.

For the second, the reasons are similar. In addition,
there was a mistake in the number that needs to be
checked. In the expression:

'variable' '=' '&' T_NEW class_name_reference ctor_arguments'

it is necessary to check not 3, but 6 elements for nil.
2021-02-04 07:12:56 +03:00
2020-12-29 21:23:22 +02:00
2020-12-29 21:23:22 +02:00
2020-03-09 11:34:11 +02:00
2020-03-09 13:55:35 +02:00
2018-01-05 19:49:29 +02:00
2018-01-05 19:37:08 +02:00
2018-04-10 15:51:05 +03:00
2020-05-17 23:16:01 +03:00
2020-05-17 23:16:01 +03:00
2018-07-09 21:19:33 +03:00
2018-01-02 14:37:19 +02:00
2020-12-08 02:08:59 +02:00
2018-05-16 09:08:16 +03:00
2020-03-09 13:34:36 +02:00

PHP Parser written in Go

PHP Parser written in Go

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This project uses goyacc and ragel tools to create PHP parser. It parses source code into AST. It can be used to write static analysis, refactoring, metrics, code style formatting tools.

Try it online: demo

Features:

  • Fully support PHP 5 and PHP 7 syntax
  • Abstract syntax tree (AST) representation
  • Traversing AST
  • Resolving namespaced names
  • Parsing syntax-invalid PHP files
  • Saving and printing free-floating comments and whitespaces

Who Uses

VKCOM/noverify - NoVerify is a pretty fast linter for PHP

quasilyte/phpgrep - phpgrep is a tool for syntax-aware PHP code search

Usage example

package main

import (
	"fmt"
	"os"

	"github.com/z7zmey/php-parser/php7"
	"github.com/z7zmey/php-parser/visitor"
)

func main() {
	src := []byte(`<? echo "Hello world";`)

	parser := php7.NewParser(src, "7.4")
	parser.Parse()

	for _, e := range parser.GetErrors() {
		fmt.Println(e)
	}

	visitor := visitor.Dumper{
		Writer:    os.Stdout,
		Indent:    "",
	}

	rootNode := parser.GetRootNode()
	rootNode.Walk(&visitor)
}

Roadmap

  • Control Flow Graph (CFG)
  • PhpDocComment parser
  • Stabilize api

Install

go get github.com/z7zmey/php-parser

CLI

php-parser [flags] <path> ...
flag type description
-p bool print filepath
-d string dump format: [custom, go, json, pretty-json]
-r bool resolve names
-ff bool parse and show free floating strings
-prof string start profiler: [cpu, mem, trace]
-php5 bool parse as PHP5

Dump AST to stdout.

Namespace resolver

Namespace resolver is a visitor that resolves nodes fully qualified name and saves into map[node.Node]string structure

  • For Class, Interface, Trait, Function, Constant nodes it saves name with current namespace.
  • For Name, Relative, FullyQualified nodes it resolves use aliases and saves a fully qualified name.
Description
No description provided
Readme 13 MiB
Languages
Go 92.7%
Yacc 6%
Ragel 1.3%