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JvmTypeReference to new Type being created. [message #1681424]

Tue, 17 March 2015 09:57

Ma DeWael

Messages: 6
Registered: March 2015

Junior Member

Dear All

In my grammar I use JvmTypeReference to refer to the types defined in my plain Java program.

My language allows to define an entity which compiles down to a plain old Java class. When the program in my language contains a (small) error, because I'm still programming, the generated java-class-file is removed from the src-gen director, and subsequently if I correct my program, the reference to my newly created type can not be resolved.

class Matrix combines A, B, C { // <- this compiles to a .java file with:class Matrix { .... }

...
Matrix m = new Matrix(); // <- this JvmTypeReference only resolves if the compilation has succeeded.
...
}

How should I change my project to be able to always refer at to types being created?

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Re: JvmTypeReference to new Type being created. [message #1681462 is a reply to message #1681424]

Tue, 17 March 2015 10:16

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

HI,

do you use JvmModelInferrer? how does it look like?

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: JvmTypeReference to new Type being created. [message #1689728 is a reply to message #1681462]

Tue, 24 March 2015 07:45

Ma DeWael

Messages: 6
Registered: March 2015

Junior Member

No,
I use

class MyDslGenerator implements IGenerator

because I need Java as a base language instead of XBase-expressions.

def generate(Domainmodel dm, IFileSystemAccess fsa){
		val jit = dm.jitclass
		var name = ""
		if(dm.package != null) name = '''«dm.package.name».«jit.fullyQualifiedName»'''
		else name = '''«jit.fullyQualifiedName»'''
		
		fsa.generateFile(name.replaceAll("\\.","/") + ".java",'''
			«IF dm.package != null»
			package «dm.package.name»;
			«ENDIF»
			public class «jit.name» { ... }

The problem is, every time I mistype something in my .mydsl file (eg. parser problem) the generated .java file is removed, making my .mydsl file un-processable even after correcting the mistakes,
because the generated .java contained a type which I need to reference in .mydsl.

Eg.
Matrix.mydsl compiles to Matrix.java with a Matrix-class defined, which allows me to refer to Matrix in Matrix.mydsl .... if Matrix.java exists.

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Re: JvmTypeReference to new Type being created. [message #1689813 is a reply to message #1689728]

Tue, 24 March 2015 11:36

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

The way to go is to use tje jvmmodelinferrer

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: JvmTypeReference to new Type being created. [message #1689951 is a reply to message #1689813]

Tue, 24 March 2015 18:01

Ma DeWael

Messages: 6
Registered: March 2015

Junior Member

but the JvmModelInferrer does not allow me to define aspects (aspectJ) and only accepts XBlockExpression as method bodies, whereas I want to have "normal" Java.

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