small qweb cleanup

src/core/qweb.ts

@@ -18,7 +18,7 @@ export class Context {
   code: string[] = [];
   variables: { [key: string]: any } = {};
   escaping: boolean = false;
-  parentNode: string | undefined;
+  parentNode: string;
   indentLevel: number = 0;
   rootContext: Context;
   caller: Element | undefined;
@@ -27,6 +27,7 @@ export class Context {
   constructor() {
     this.rootContext = this;
     this.fragmentID = this.generateID();
+    this.parentNode = this.fragmentID;
   }
 
   generateID(): string {
@@ -68,11 +69,7 @@ export class Context {
   }
 
   addNode(nodeID: string) {
-    if (this.parentNode) {
-      this.addLine(`${this.parentNode}.appendChild(${nodeID})`);
-    } else {
-      this.addLine(`${this.fragmentID}.appendChild(${nodeID})`);
-    }
+    this.addLine(`${this.parentNode}.appendChild(${nodeID})`);
   }
   addLine(line: string) {
     const prefix = new Array(this.indentLevel).join("\t");
@@ -80,6 +77,9 @@ export class Context {
     const suffix = lastChar !== "}" && lastChar !== "{" ? ";" : "";
     this.code.push(prefix + line + suffix);
   }
+  getValue(val: any): any {
+    return val in this.variables ? this.getValue(this.variables[val]) : val;
+  }
 }
 
 /**
@@ -298,12 +298,6 @@ export default class QWeb {
     }
   }
 
-  _getValue(val: any, ctx: Context): any {
-    if (val in ctx.variables) {
-      return this._getValue(ctx.variables[val], ctx);
-    }
-    return val;
-  }
   _compileChildren(node: ChildNode, ctx: Context) {
     if (node.childNodes.length > 0) {
       for (let child of Array.from(node.childNodes)) {

src/core/qweb_directives.ts

@@ -61,7 +61,7 @@ const ifDirective: Directive = {
   name: "if",
   priority: 20,
   atNodeEncounter({ node, qweb, ctx }): boolean {
-    let cond = qweb._getValue(node.getAttribute("t-if")!, ctx);
+    let cond = ctx.getValue(node.getAttribute("t-if")!);
     ctx.addLine(`if (${qweb._formatExpression(cond)}) {`);
     ctx.indent();
     return false;
@@ -76,7 +76,7 @@ const elifDirective: Directive = {
   name: "elif",
   priority: 30,
   atNodeEncounter({ node, qweb, ctx }): boolean {
-    let cond = qweb._getValue(node.getAttribute("t-elif")!, ctx);
+    let cond = ctx.getValue(node.getAttribute("t-elif")!);
     ctx.addLine(`else if (${qweb._formatExpression(cond)}) {`);
     ctx.indent();
     return false;
@@ -180,7 +180,7 @@ const escDirective: Directive = {
       let nodeID = qweb._compileGenericNode(node, ctx);
       ctx = ctx.withParent(nodeID);
     }
-    let value = qweb._getValue(node.getAttribute("t-esc")!, ctx);
+    let value = ctx.getValue(node.getAttribute("t-esc")!);
     compileValueNode(value, node, qweb, ctx.withEscaping());
     return true;
   }
@@ -194,7 +194,7 @@ const rawDirective: Directive = {
       let nodeID = qweb._compileGenericNode(node, ctx);
       ctx = ctx.withParent(nodeID);
     }
-    let value = qweb._getValue(node.getAttribute("t-raw")!, ctx);
+    let value = ctx.getValue(node.getAttribute("t-raw")!);
     compileValueNode(value, node, qweb, ctx);
     return true;
   }