Add some code to a file
Answered
Hi,
I got a VirtualFile from `VirtualFileManager.getInstance().findFileByUrl` so I can have a PsiFile like this:
val psi: PsiFile? = PsiManager.getInstance(event.project!!).findFile(file!!)
The file looks like this:
<?php
/**
* @package Zend Framework
* @author Rtransat
*/
namespace Rtransat;
return [
'factories' => [
Model\Infrastructure\Api\Adapter::class => Model\Infrastructure\Api\AdapterFactory::class,
]
];
I would like to add a line in the php array in the factories index, but I really don't know how to parse the PsiElement (even with the PsiViewer plugin) to add the line.
Regards.
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Could you please show what you tried or what specific problems you encountered? Maybe http://www.jetbrains.org/intellij/sdk/docs/basics/architectural_overview/modifying_psi.html helps?
The thing is I don't know how to manipulate an entire PsiFile from this full content (the entire file). And the docs don't help me because I don't understand how to get some PsiElement, edit them or add other PsiElement to another.
In this forum or youtube, stackoverflow, blog post I see the psi manipulation but from the carret in the editor not from the file it self.
I've tried to follow this blog post (see findInjectParameterList function) : https://medium.com/@andresdom/developing-an-intellij-webstorm-javascript-plugin-65416f9afea3
I've tried to get the elements like this :
In my case I think I don't need to each every ArrayCreationExpression. I just want to get the factories array (if exists) and add a key => value at the end.
The documentation about PsiFile is too small for me. I think the PsiFile/PsiElement are difficult at first and when we understand how it's works it's more simple but in the meantime I'm stuck.
Could you provide your help Yann? 😁
Please check com.jetbrains.php.lang.psi.PhpPsiElementFactory to create new PHP PSI elements. Then use standward ways of manipulating existing PSI via PsiElement#add/replace to manipulate tree. See also PsiTreeUtil for useful methods to navigate within tree.
Thank you. Do you have just a simple example to show me?
PSI manipulation is always very specific.
See http://www.jetbrains.org/intellij/sdk/docs/products/phpstorm/existing_plugins.html, or check out plugins for PHP with source code from this list: https://plugins.jetbrains.com/search?correctionAllowed=true&orderBy=&pr=&search=php&should_have_source=true
The issue is, I don't know how to get the PsiElement which contains the factories array to use PsiElement.add(newPsiElementKeyValue).
How to get the PHP array?
I found this https://github.com/Haehnchen/idea-php-symfony2-plugin/blob/master/src/main/java/fr/adrienbrault/idea/symfony2plugin/util/PhpElementsUtil.java and https://github.com/Haehnchen/idea-php-oxid-plugin/blob/edb86e6b41e422957cc86ea78293f7427ff1e764/src/de/espend/idea/oxid/utils/MetadataUtil.java but I can not get ArrayCreationExpression element.
I have try something. Here my code:
private fun findFactoriesKey(file: PsiFile): PsiElement? {
val arrayCreationExpressions: Collection<ArrayCreationExpression> = PsiTreeUtil.findChildrenOfType(file, ArrayCreationExpression::class.java)
for (arrayCreationExpression in arrayCreationExpressions) {
val arrayCreationKeyMap = PhpElementsUtil.getArrayCreationKeyMap(arrayCreationExpression)
for (arrayCreationKey in arrayCreationKeyMap) {
println(arrayCreationKey.key)
if (arrayCreationKey.key == "factories") {
return arrayCreationKey.value
}
}
}
return null
}
But I'm stuck with this. I don't know if it's works (in this example I try to add a function just for the test) and even if it's work I don't know how to get the new PsiFile and save the file.
Can you help me please?