重构tracer设计

tracers.ts/src/tracers/control-tracer.ts

@@ -0,0 +1,81 @@
+import { getTracerContext } from '../context';
+
+export const getLocation = (targetFn?: Function) => {
+  const stackObject: { stack: string } = { stack: '' };
+  Error.captureStackTrace(stackObject, targetFn ?? getLocation);
+  const { stack } = stackObject;
+  // D:\Projects\structrail-sdk\tracers.ts\src\index.ts:23:18
+  const location = stack.split('\n').at(1)?.trim().split(' ').at(1)?.trim();
+  // console.log(location);
+  if (!location) return null;
+
+  const matches = location?.match(/:(\d+):?(\d+)?\)?$/);
+  // console.log(matches);
+  const file = location?.replace(matches?.at(0) ?? '', '');
+  // console.log(file);
+  const line = parseInt(matches?.at(1) ?? '0');
+  // console.log(line);
+
+  return {
+    file,
+    line,
+  };
+};
+
+interface ControlTracerCreateOptions {
+  description?: string;
+}
+
+export const createControlTracer = (options: ControlTracerCreateOptions) => {
+  const { description = 'ControlTracer' } = options;
+  const tracer = crypto.randomUUID();
+
+  const { command } = getTracerContext();
+
+  command({
+    type: 'ControlTracer',
+    tracer: tracer,
+    action: 'create',
+    params: {
+      description: description,
+    },
+  });
+
+  const step = (...range: (number | [number, number])[]) => {
+    const { line: currentLine } = getLocation(step) ?? {};
+    if (!currentLine) return;
+    // console.log(currentLine);
+
+    const linesSet = new Set<number>([currentLine]);
+    range.forEach((item) => {
+      if (Array.isArray(item) && item.length === 2) {
+        const [offsetStart, offsetEnd] = item;
+        const lineStart = currentLine - offsetStart;
+        const lineEnd = currentLine - offsetEnd;
+        const lineMin = Math.min(lineStart, lineEnd);
+        const lineMax = Math.max(lineStart, lineEnd);
+        for (let line = lineMin; line <= lineMax; line++) {
+          linesSet.add(line);
+        }
+      }
+      if (typeof item === 'number') {
+        const line = item;
+        linesSet.add(currentLine - line);
+      }
+    });
+    const lines = Array.from(linesSet).sort((line1, line2) => line1 - line2);
+
+    command({
+      type: 'ControlTracer',
+      tracer: tracer,
+      action: 'step',
+      params: {
+        lines: lines,
+      },
+    });
+  };
+
+  return {
+    step,
+  };
+};