feat(config-editor): add AST parser (speed/enumRef/raw) with tests

extensions/pixelhero-config-editor/src/io/parser.ts

@@ -0,0 +1,65 @@
+import * as ts from 'typescript';
+import { RecordValue } from './recordValue';
+
+/** 在 SourceFile 中查找 `export const <name> = {...}`，返回其对象字面量节点。 */
+export function findExportObjectLiteral(src: ts.SourceFile, name: string): ts.ObjectLiteralExpression | null {
+  let result: ts.ObjectLiteralExpression | null = null;
+  const visit = (node: ts.Node) => {
+    if (result) return;
+    if (ts.isVariableStatement(node)) {
+      for (const d of node.declarationList.declarations) {
+        if (d.name.getText() === name && d.initializer && ts.isObjectLiteralExpression(d.initializer)) {
+          result = d.initializer;
+          return;
+        }
+      }
+    }
+    ts.forEachChild(node, visit);
+  };
+  visit(src);
+  return result;
+}
+
+/** 识别 `AtkSpeedSet[AtkSpeedLv.<level>].cd`，否则 null。 */
+function tryParseSpeedExpr(node: ts.PropertyAccessExpression): RecordValue | null {
+  if (node.name.text !== 'cd') return null;
+  const inner = node.expression;
+  if (!ts.isElementAccessExpression(inner)) return null;
+  if (!ts.isIdentifier(inner.expression) || inner.expression.text !== 'AtkSpeedSet') return null;
+  const arg = inner.argumentExpression;
+  if (!ts.isPropertyAccessExpression(arg)) return null;
+  if (!ts.isIdentifier(arg.expression) || arg.expression.text !== 'AtkSpeedLv') return null;
+  return { kind: 'speed', level: arg.name.text };
+}
+
+export function parseExpression(node: ts.Expression): RecordValue {
+  if (ts.isNumericLiteral(node)) return { kind: 'num', value: Number(node.text) };
+  if (ts.isStringLiteral(node)) return { kind: 'str', value: node.text };
+  if (node.kind === ts.SyntaxKind.TrueKeyword) return { kind: 'bool', value: true };
+  if (node.kind === ts.SyntaxKind.FalseKeyword) return { kind: 'bool', value: false };
+
+  if (ts.isPropertyAccessExpression(node)) {
+    const speed = tryParseSpeedExpr(node);
+    if (speed) return speed;
+    if (ts.isIdentifier(node.expression)) {
+      return { kind: 'enumRef', qualifier: node.expression.text, member: node.name.text };
+    }
+    return { kind: 'raw', text: node.getText() }; // 多级 a.b.c 等
+  }
+
+  if (ts.isArrayLiteralExpression(node)) {
+    return { kind: 'arr', items: node.elements.map(e => parseExpression(e)) };
+  }
+
+  if (ts.isObjectLiteralExpression(node)) {
+    const props: Record<string, RecordValue> = {};
+    for (const m of node.properties) {
+      if (ts.isPropertyAssignment(m)) {
+        props[m.name.getText()] = parseExpression(m.initializer);
+      }
+    }
+    return { kind: 'obj', props };
+  }
+
+  return { kind: 'raw', text: node.getText() }; // 二元/模板/调用/其他元素访问
+}