c++bug修复

scratch-gui/scripts/diagnose-cpp.cjs

@@ -0,0 +1,71 @@
+// Read-only diagnostic: exercise the current editor interpreter with mocked game APIs.
+// Run from scratch-gui: node scripts/diagnose-cpp.cjs
+const fs = require('fs');
+const path = require('path');
+const vm = require('vm');
+const babel = require('@babel/core');
+const filename = path.resolve(__dirname, '../src/components/stage-cpp/cpp-parser.js');
+const transformed = babel.transformSync(fs.readFileSync(filename, 'utf8'), {
+    filename, configFile: false, babelrc: false,
+    plugins: ['@babel/plugin-transform-modules-commonjs']
+}).code;
+const context = {
+    exports: {}, require, setTimeout,
+    console: {log() {}, warn() {}, error() {}}, window: {}
+};
+vm.runInNewContext(transformed, context, {filename});
+const {CppCodeExecutor, validateCppSyntax} = context.exports;
+const main = body => `int main() {\n${body}\n}`;
+const customer = `void test() {
+    for (int i = 0; i < 2; i++) {
+    }
+}
+int main() {
+    turnLeft(-1);
+    for (int i = 0; i < 1; i++) {
+        test();
+        playerMove(i);
+    }
+}`;
+const cases = [
+    ['customer_local_i', customer, {moves: [0]}],
+    ['customer_renamed_inner_j', customer.replace('int i = 0; i < 2; i++', 'int j = 0; j < 2; j++'), {moves: [0]}],
+    ['cout_literal', main('cout << "Hello" << endl;'), {output: ['Hello\n']}],
+    ['cout_variable', main('int i = 7;\ncout << "i=" << i << endl;'), {output: ['i=7\n']}],
+    ['cout_string_assignment_shape', main('cout << "value=42" << endl;'), {output: ['value=42\n']}],
+    ['cout_increment_expression', main('int i = 0;\ncout << i++ << endl;\nplayerMove(i);'), {output: ['0\n'], moves: [1]}],
+    ['cout_increment_literal', main('cout << "C++" << endl;'), {output: ['C++\n']}],
+    ['cout_std_qualified', main('std::cout << "Hello" << std::endl;'), {output: ['Hello\n']}],
+    ['main_return_zero', main('return 0;'), {error: null}],
+    ['legal_space_before_call', main('playerMove (1);'), {valid: true, moves: [1]}],
+    ['nested_loop_shadowing', main('for (int i = 0; i < 2; i++) {\nfor (int i = 0; i < 2; i++) {\n}\nplayerMove(i);\n}'), {moves: [0, 1]}],
+    ['negative_integer_division', main('int a = -3;\na /= 2;\nplayerMove(a);'), {moves: [-1]}],
+    ['function_return_value', 'int answer() {\nreturn 7;\n}\n' + main('int n = answer();\nplayerMove(n);'), {moves: [7]}],
+    ['nested_if_break', main('for (int i = 0; i < 3; i++) {\nif (i == 1) {\nbreak;\n}\nplayerMove(i);\n}'), {moves: [0]}],
+    ['floating_point', main('double x = 1.5;\ncout << x << endl;'), {output: ['1.5\n']}],
+    ['array_index', main('int a[2] = {3, 7};\nplayerMove(a[1]);'), {moves: [7]}],
+    ['unknown_variable', main('playerMove(missing);'), {valid: false}],
+    ['early_return_zero', 'int stop() {\nreturn 0;\nplayerMove(9);\n}\n' + main('stop();'), {moves: []}]
+];
+(async () => {
+    const results = [];
+    for (const [name, code, expected] of cases) {
+        const actual = {valid: false, moves: [], turns: [], output: [], error: null};
+        context.window = {isScriptRunOver: false, cppGameAPI: {
+            playerMove: async n => actual.moves.push(n),
+            turnLeft: async n => actual.turns.push(n),
+            cmdPrint: text => actual.output.push(text)
+        }};
+        const validation = await validateCppSyntax(code);
+        actual.valid = validation.isValid;
+        if (!actual.valid) actual.validationErrors = validation.errors;
+        const executor = new CppCodeExecutor(code, null);
+        if (actual.valid) {
+            try { await executor.run(); } catch (error) {actual.error = error.message;}
+        }
+        const matchesExpected = Object.entries(expected).every(([key, value]) =>
+            JSON.stringify(actual[key]) === JSON.stringify(value));
+        results.push({name, expected, actual, matchesExpected});
+    }
+    process.stdout.write(JSON.stringify(results, null, 2) + '\n');
+})().catch(error => {console.error(error); process.exitCode = 1;});