[FIX] qweb: allow t-if with t-call directives

closes #246

src/qweb/base_directives.ts

@@ -228,6 +228,10 @@ QWeb.addDirective({
       ctx.addLine("}");
     }
 
+    if (node.hasAttribute("t-if") || node.hasAttribute("t-else") || node.hasAttribute("t-elif")) {
+      ctx.closeIf();
+    }
+
     return true;
   }
 });

tests/qweb/__snapshots__/qweb.test.ts.snap

@@ -806,6 +806,22 @@ exports[`t-call (template calling scoped parameters 1`] = `
 }"
 `;
 
+exports[`t-call (template calling t-call with t-if 1`] = `
+"function anonymous(context,extra
+) {
+    var h = this.h;
+    let c1 = [], p1 = {key:1};
+    var vn1 = h('div', p1, c1);
+    if (context['flag']) {
+        let c2 = [], p2 = {key:2};
+        var vn2 = h('span', p2, c2);
+        c1.push(vn2);
+        c2.push({text: \`ok\`});
+    }
+    return vn1;
+}"
+`;
+
 exports[`t-call (template calling with unused body 1`] = `
 "function anonymous(context,extra
 ) {

tests/qweb/qweb.test.ts

@@ -501,6 +501,13 @@ describe("t-call (template calling", () => {
     expect(renderToString(qweb, "caller")).toBe(expected);
   });
 
+  test("t-call with t-if", () => {
+    qweb.addTemplate("sub", "<span>ok</span>");
+    qweb.addTemplate("caller", '<div><t t-if="flag" t-call="sub"/></div>');
+    const expected = "<div><span>ok</span></div>";
+    expect(renderToString(qweb, "caller", {flag: true})).toBe(expected);
+  });
+
   test("t-call not allowed on a non t node", () => {
     qweb.addTemplate("_basic-callee", "<t>ok</t>");
     qweb.addTemplate("caller", '<div t-call="_basic-callee"/>');