reorganize data; show flamegraph

web/public/deno.jsonc

@@ -1,7 +1,6 @@
 {
     "tasks": {
-      "bundle": "deno run -A bundle.ts",
-      "dev": "deno run --watch -A bundle.ts"
+      "bundle": "deno run -A bundle.ts"
     },
     "compilerOptions": {
         "checkJs": false,

web/public/src/data.ts

@@ -0,0 +1,43 @@
+export type FlameGraphNode = {
+    fn: number;
+    acc: number;
+    parent: number;
+    children: FlameGraphNode[];
+};
+
+export function flameGraphData(): FlameGraphNode {
+    return JSON.parse(
+        `{"fn":0,"acc":257,"parent":0,"children":[{"fn":18,"acc":251,"parent":0,"children":[{"fn":12,"acc":30,"parent":1,"children":[]}]}]}`,
+    );
+}
+
+export function codeData() {
+    return `\
+fn add(a, b) {
+    + a b
+}
+
+let result = 0;
+let i = 0;
+loop {
+    if >= i 10 {
+        break;
+    }
+    result = add(result, 5);
+    i = + i 1;
+}
+`;
+}
+
+export type CodeCovEntry = {
+    index: number;
+    line: number;
+    col: number;
+    covers: number;
+};
+
+export function codeCoverageData(): CodeCovEntry[] {
+    return JSON.parse(
+        `[{"index":0,"line":1,"col":1,"covers":2},{"index":28,"line":5,"col":1,"covers":1},{"index":44,"line":6,"col":1,"covers":1},{"index":55,"line":7,"col":1,"covers":1},{"index":66,"line":8,"col":5,"covers":11},{"index":104,"line":11,"col":5,"covers":10},{"index":19,"line":2,"col":5,"covers":10},{"index":133,"line":12,"col":5,"covers":10},{"index":87,"line":9,"col":9,"covers":1}]`,
+    );
+}

web/public/src/index.ts

@@ -1,9 +1,10 @@
-type CodeCovEntry = {
-    index: number;
-    line: number;
-    col: number;
-    covers: number;
-};
+import {
+    CodeCovEntry,
+    codeCoverageData,
+    codeData,
+    flameGraphData,
+    FlameGraphNode,
+} from "./data.ts";
 
 function loadCodeCoverage(
     text: string,
@@ -93,8 +94,13 @@ function loadCodeCoverage(
     });
 }
 
-// @ts-ignore: unsure of relevant types
-function loadFlameGraph(flameGraphData, fnNames, flameGraphDiv) {
+type FlameGraphFnNames = { [key: number]: string };
+
+function loadFlameGraph(
+    flameGraphData: FlameGraphNode,
+    fnNames: FlameGraphFnNames,
+    flameGraphDiv: HTMLDivElement,
+) {
     flameGraphDiv.innerHTML = `
         <canvas id="flame-graph-canvas"></canvas>
         <span id="flame-graph-tooltip" hidden></span>
@@ -120,8 +126,12 @@ function loadFlameGraph(flameGraphData, fnNames, flameGraphDiv) {
 
     const nodes: Node[] = [];
 
-    // @ts-ignore: unsure of relevant types
-    function calculateNodeRects(node, depth, totalAcc, offsetAcc) {
+    function calculateNodeRects(
+        node: FlameGraphNode,
+        depth: number,
+        totalAcc: FlameGraphNode["acc"],
+        offsetAcc: FlameGraphNode["acc"],
+    ) {
         const x = (offsetAcc / totalAcc) * canvas.width;
         const y = canvas.height - 30 * depth - 30;
         const w = ((node.acc + 1) / totalAcc) * canvas.width;
@@ -132,7 +142,6 @@ function loadFlameGraph(flameGraphData, fnNames, flameGraphDiv) {
         nodes.push({ x, y, w, h, title, percent });
 
         const totalChildrenAcc = node.children.reduce(
-            // @ts-ignore: unsure of relevant types
             (acc, child) => acc + child.acc,
             0,
         );
@@ -186,30 +195,6 @@ function loadFlameGraph(flameGraphData, fnNames, flameGraphDiv) {
 }
 
 function main() {
-    const codeData = `\
-fn add(a, b) {
-    + a b
-}
-
-let result = 0;
-let i = 0;
-loop {
-    if >= i 10 {
-        break;
-    }
-    result = add(result, 5);
-    i = + i 1;
-}
-`;
-
-    const codeCoverageData = JSON.parse(
-        `[{"index":0,"line":1,"col":1,"covers":2},{"index":28,"line":5,"col":1,"covers":1},{"index":44,"line":6,"col":1,"covers":1},{"index":55,"line":7,"col":1,"covers":1},{"index":66,"line":8,"col":5,"covers":11},{"index":104,"line":11,"col":5,"covers":10},{"index":19,"line":2,"col":5,"covers":10},{"index":133,"line":12,"col":5,"covers":10},{"index":87,"line":9,"col":9,"covers":1}]`,
-    );
-
-    const flameGraphData = JSON.parse(
-        `{"fn":0,"acc":257,"parent":0,"children":[{"fn":18,"acc":251,"parent":0,"children":[{"fn":12,"acc":30,"parent":1,"children":[]}]}]}`,
-    );
-
     type RenderFns = {
         "source-code": () => void;
         "code-coverage": () => void;
@@ -244,9 +229,9 @@ loop {
         "source-code": () => {
             const container = document.createElement("div");
             container.classList.add("code-container");
-            const lines = createLineElement(codeData);
+            const lines = createLineElement(codeData());
             const code = document.createElement("pre");
-            code.innerText = codeData;
+            code.innerText = codeData();
             container.append(lines, code);
             view.replaceChildren(container);
         },
@@ -255,14 +240,24 @@ loop {
             container.classList.add("code-container");
             const tooltip = document.createElement("div");
             tooltip.id = "covers-tooltip";
+            tooltip.hidden = true;
             const code = document.createElement("pre");
-            loadCodeCoverage(codeData, codeCoverageData, code, tooltip);
-            const lines = createLineElement(codeData);
+            loadCodeCoverage(codeData(), codeCoverageData(), code, tooltip);
+            const lines = createLineElement(codeData());
             container.append(lines, code);
             const view = document.querySelector("#view")!;
             view.replaceChildren(container, tooltip);
         },
-        "flame-graph": () => {},
+        "flame-graph": () => {
+            const container = document.createElement("div");
+            const view = document.querySelector("#view")!;
+            view.replaceChildren(container);
+            loadFlameGraph(flameGraphData(), {
+                0: "<entry>",
+                12: "add",
+                18: "main",
+            }, container);
+        },
     };
 
     const viewRadios: NodeListOf<HTMLInputElement> = document.querySelectorAll(
@@ -279,13 +274,6 @@ loop {
             renderFunctions[value]();
         }
     }
-
-    // loadCodeCoverage(codeData, codeCoverageData);
-    // loadFlameGraph(flameGraphData, {
-    //     0: "<entry>",
-    //     12: "add",
-    //     18: "main",
-    // });
 }
 
 main();