All files / lib/pipeline/module/compiler importModule.ts

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
 
26x
 
 
 
 
26x
 
 
1587x
 
3x
 
1584x
 
8x
 
 
 
 
 
 
3x
 
 
3x
 
 
 
 
 
3x
3x
 
 
 
 
8x
 
 
8x
8x
 
 
8x
8x
8x
 
import { HtmlCompilerModule, HtmlCompilerContext } from '../htmlCompiler';
import { MImportNode, TagNode, MFragmentNode } from '../../..';
 
/**
 * Process imports / aliases via m-import
 */
export class ImportModule implements HtmlCompilerModule {
    enterNode(htmlContext: HtmlCompilerContext): void {
        
        if (MImportNode.isMImportNode(htmlContext.node)) {
            // if this is m-import, then process it
            registerImport(htmlContext.node, htmlContext);
 
        } else if (TagNode.isTagNode(htmlContext.node) && htmlContext.hasImport(htmlContext.node.tagName)) {
            // else if this is a replacement node, then replace it
            replaceImport(htmlContext.node, htmlContext);
        }
    }
}
 
function registerImport(mImport: MImportNode, htmlContext: HtmlCompilerContext): void {
    // imports are registered into the parent scope. Fall back to current scope in case this is the root
    const targetNodeData = htmlContext.parentContext ?? htmlContext;
 
    // create import definition and register in compile data
    targetNodeData.defineImport({
        alias: mImport.as,
        source: mImport.src
    });
 
    // delete node
    mImport.removeSelf();
    htmlContext.setDeleted();
}
 
function replaceImport(tag: TagNode, htmlContext: HtmlCompilerContext): void {
    // get import definition
    const importDefinition = htmlContext.getImport(tag.tagName);
 
    // create replacement
    const attributes = new Map(tag.getAttributes().entries());
    const replacementTag = new MFragmentNode(importDefinition.source, attributes);
 
    // replace tag
    replacementTag.appendChildren(tag.childNodes);
    tag.replaceSelf([ replacementTag ]);
    htmlContext.setDeleted();
}