## Coverage Report

#### Created: 2025-09-08 21:26

next uncovered line (L), next uncovered region (R), next uncovered branch (B)

    /home/noah/src/ruchy/src/wasm/portability.rs

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    1
    //! Portability scoring for WebAssembly components (RUCHY-0819)
    2
    //!
    3
    //! Analyzes and scores the portability of Ruchy-generated WASM components
    4
    //! across different platforms and runtimes.
    5
    6
    #[cfg(test)]
    7
    mod tests {
    8
        use super::*;
    9
    10
        use std::collections::{HashMap, HashSet};
    11
    12
        // Helper functions for consistent test setup
    13
        fn create_test_config() -> AnalysisConfig {
    14
            AnalysisConfig {
    15
                target_platforms: vec![
    16
                    "wasmtime".to_string(),
    17
                    "wasmer".to_string(),
    18
                    "browser".to_string(),
    19
                ],
    20
                check_api_compatibility: true,
    21
                check_size_constraints: true,
    22
                check_performance: true,
    23
                check_security: true,
    24
                strict_mode: false,
    25
            }
    26
        }
    27
    28
        fn create_test_component_info() -> ComponentInfo {
    29
            let mut features = HashSet::new();
    30
            features.insert("memory".to_string());
    31
            features.insert("tables".to_string());
    32
    33
            ComponentInfo {
    34
                name: "test_component".to_string(),
    35
                version: "1.0.0".to_string(),
    36
                size: 1024 * 10, // 10KB
    37
                exports_count: 5,
    38
                imports_count: 3,
    39
                features,
    40
            }
    41
        }
    42
    43
        fn create_test_portability_score() -> PortabilityScore {
    44
            let mut platform_scores = HashMap::new();
    45
            platform_scores.insert("wasmtime".to_string(), 0.95);
    46
            platform_scores.insert("wasmer".to_string(), 0.92);
    47
            platform_scores.insert("browser".to_string(), 0.88);
    48
    49
            let mut feature_scores = HashMap::new();
    50
            feature_scores.insert("memory".to_string(), 0.9);
    51
            feature_scores.insert("threading".to_string(), 0.7);
    52
            feature_scores.insert("simd".to_string(), 0.6);
    53
    54
            PortabilityScore {
    55
                overall_score: 0.85,
    56
                platform_scores,
    57
                feature_scores,
    58
                api_compatibility: 0.90,
    59
                size_efficiency: 0.88,
    60
                performance_portability: 0.82,
    61
                security_compliance: 0.95,
    62
            }
    63
        }
    64
    65
        fn create_test_analyzer() -> PortabilityAnalyzer {
    66
            PortabilityAnalyzer::new()
    67
        }
    68
    69
        fn create_test_analyzer_with_config() -> PortabilityAnalyzer {
    70
            let config = create_test_config();
    71
            PortabilityAnalyzer::new_with_config(config)
    72
        }
    73
    74
        // ========== AnalysisConfig Tests ==========
    75
    76
        #[test]
    77
        fn test_analysis_config_creation() {
    78
            let config = create_test_config();
    79
            assert_eq!(config.target_platforms.len(), 3);
    80
            assert!(config.check_api_compatibility);
    81
            assert!(config.check_size_constraints);
    82
            assert!(config.check_performance);
    83
            assert!(config.check_security);
    84
            assert!(!config.strict_mode);
    85
        }
    86
    87
        #[test]
    88
        fn test_analysis_config_default() {
    89
            let config = AnalysisConfig::default();
    90
            assert!(!config.target_platforms.is_empty());
    91
            assert!(config.check_api_compatibility);
    92
            assert!(!config.strict_mode);
    93
        }
    94
    95
        #[test]
    96
        fn test_analysis_config_clone() {
    97
            let config1 = create_test_config();
    98
            let config2 = config1.clone();
    99
            assert_eq!(config1.target_platforms, config2.target_platforms);
    100
            assert_eq!(config1.strict_mode, config2.strict_mode);
    101
        }
    102
    103
        #[test]
    104
        fn test_analysis_config_serialization() {
    105
            let config = create_test_config();
    106
            let json = serde_json::to_string(&config).unwrap();
    107
            let deserialized: AnalysisConfig = serde_json::from_str(&json).unwrap();
    108
            assert_eq!(config.target_platforms, deserialized.target_platforms);
    109
        }
    110
    111
        // ========== ComponentInfo Tests ==========
    112
    113
        #[test]
    114
        fn test_component_info_creation() {
    115
            let info = create_test_component_info();
    116
            assert_eq!(info.name, "test_component");
    117
            assert_eq!(info.version, "1.0.0");
    118
            assert_eq!(info.size, 10240);
    119
            assert_eq!(info.exports_count, 5);
    120
            assert_eq!(info.imports_count, 3);
    121
            assert_eq!(info.features.len(), 2);
    122
        }
    123
    124
        #[test]
    125
        fn test_component_info_without_features() {
    126
            let info = ComponentInfo {
    127
                name: "minimal".to_string(),
    128
                version: "0.1.0".to_string(),
    129
                size: 1024,
    130
                exports_count: 0,
    131
                imports_count: 0,
    132
                features: HashSet::new(),
    133
            };
    134
            assert_eq!(info.exports_count, 0);
    135
            assert_eq!(info.imports_count, 0);
    136
            assert!(info.features.is_empty());
    137
        }
    138
    139
        #[test]
    140
        fn test_component_info_serialization() {
    141
            let info = create_test_component_info();
    142
            let json = serde_json::to_string(&info).unwrap();
    143
            let deserialized: ComponentInfo = serde_json::from_str(&json).unwrap();
    144
            assert_eq!(info.name, deserialized.name);
    145
            assert_eq!(info.size, deserialized.size);
    146
        }
    147
    148
        // ========== PortabilityScore Tests ==========
    149
    150
        #[test]
    151
        fn test_portability_score_creation() {
    152
            let score = create_test_portability_score();
    153
            assert_eq!(score.overall_score, 0.85);
    154
            assert_eq!(score.platform_scores.len(), 3);
    155
            assert_eq!(score.feature_scores.len(), 3);
    156
            assert_eq!(score.api_compatibility, 0.90);
    157
            assert_eq!(score.security_compliance, 0.95);
    158
        }
    159
    160
        #[test]
    161
        fn test_portability_score_platform_lookup() {
    162
            let score = create_test_portability_score();
    163
            assert_eq!(*score.platform_scores.get("wasmtime").unwrap(), 0.95);
    164
            assert_eq!(*score.platform_scores.get("wasmer").unwrap(), 0.92);
    165
            assert_eq!(*score.platform_scores.get("browser").unwrap(), 0.88);
    166
        }
    167
    168
        #[test]
    169
        fn test_portability_score_feature_lookup() {
    170
            let score = create_test_portability_score();
    171
            assert_eq!(*score.feature_scores.get("memory").unwrap(), 0.9);
    172
            assert_eq!(*score.feature_scores.get("threading").unwrap(), 0.7);
    173
            assert_eq!(*score.feature_scores.get("simd").unwrap(), 0.6);
    174
        }
    175
    176
        #[test]
    177
        fn test_portability_score_perfect() {
    178
            let mut score = create_test_portability_score();
    179
            score.overall_score = 1.0;
    180
            score.api_compatibility = 1.0;
    181
            score.size_efficiency = 1.0;
    182
            score.performance_portability = 1.0;
    183
            score.security_compliance = 1.0;
    184
    185
            assert_eq!(score.overall_score, 1.0);
    186
            assert_eq!(score.api_compatibility, 1.0);
    187
            assert_eq!(score.size_efficiency, 1.0);
    188
            assert_eq!(score.performance_portability, 1.0);
    189
            assert_eq!(score.security_compliance, 1.0);
    190
        }
    191
    192
        #[test]
    193
        fn test_portability_score_failing() {
    194
            let mut score = create_test_portability_score();
    195
            score.overall_score = 0.4;
    196
            assert!(score.overall_score < 0.5);
    197
        }
    198
    199
        // ========== CompatibilityIssue Tests ==========
    200
    201
        #[test]
    202
        fn test_compatibility_issue_creation() {
    203
            let issue = CompatibilityIssue {
    204
                severity: IssueSeverity::Warning,
    205
                category: IssueCategory::ApiIncompatibility,
    206
                affected_platforms: vec!["browser".to_string()],
    207
                description: "Missing API support".to_string(),
    208
                fix_suggestion: Some("Use polyfill or alternative API".to_string()),
    209
            };
    210
    211
            assert_eq!(issue.severity, IssueSeverity::Warning);
    212
            assert_eq!(issue.category, IssueCategory::ApiIncompatibility);
    213
            assert_eq!(issue.affected_platforms.len(), 1);
    214
            assert!(issue.fix_suggestion.is_some());
    215
        }
    216
    217
        #[test]
    218
        fn test_compatibility_issue_severity_levels() {
    219
            let severities = [IssueSeverity::Error,
    220
                IssueSeverity::Warning,
    221
                IssueSeverity::Info];
    222
    223
            assert_eq!(severities.len(), 3);
    224
            assert_ne!(severities[0], severities[1]);
    225
        }
    226
    227
        #[test]
    228
        fn test_compatibility_issue_categories() {
    229
            let categories = [IssueCategory::ApiIncompatibility,
    230
                IssueCategory::FeatureNotSupported,
    231
                IssueCategory::Performance,
    232
                IssueCategory::SizeConstraint,
    233
                IssueCategory::Security,
    234
                IssueCategory::Configuration];
    235
    236
            assert_eq!(categories.len(), 6);
    237
        }
    238
    239
        // ========== Recommendation Tests ==========
    240
    241
        #[test]
    242
        fn test_recommendation_creation() {
    243
            let rec = Recommendation {
    244
                priority: RecommendationPriority::High,
    245
                title: "Optimize memory usage".to_string(),
    246
                description: "Reduce memory allocation".to_string(),
    247
                impact: 0.1,
    248
                platforms: vec!["wasmtime".to_string(), "wasmer".to_string()],
    249
            };
    250
    251
            assert_eq!(rec.priority, RecommendationPriority::High);
    252
            assert_eq!(rec.title, "Optimize memory usage");
    253
            assert_eq!(rec.impact, 0.1);
    254
            assert_eq!(rec.platforms.len(), 2);
    255
        }
    256
    257
        #[test]
    258
        fn test_recommendation_priorities() {
    259
            let priorities = [RecommendationPriority::Low,
    260
                RecommendationPriority::Medium,
    261
                RecommendationPriority::High];
    262
    263
            assert_eq!(priorities.len(), 3);
    264
        }
    265
    266
        #[test]
    267
        fn test_recommendation_serialization() {
    268
            let rec = Recommendation {
    269
                priority: RecommendationPriority::Medium,
    270
                title: "Test recommendation".to_string(),
    271
                description: "Test description".to_string(),
    272
                impact: 0.05,
    273
                platforms: vec!["browser".to_string()],
    274
            };
    275
    276
            let json = serde_json::to_string(&rec).unwrap();
    277
            let deserialized: Recommendation = serde_json::from_str(&json).unwrap();
    278
            assert_eq!(rec.title, deserialized.title);
    279
            assert_eq!(rec.impact, deserialized.impact);
    280
        }
    281
    282
        // ========== PlatformSupport Tests ==========
    283
    284
        #[test]
    285
        fn test_platform_support_creation() {
    286
            let support = PlatformSupport {
    287
                platform: "wasmtime".to_string(),
    288
                support_level: SupportLevel::Full,
    289
                compatibility_score: 0.9,
    290
                required_modifications: vec![],
    291
                runtime_requirements: Some("1.0-2.0".to_string()),
    292
            };
    293
    294
            assert_eq!(support.platform, "wasmtime");
    295
            assert_eq!(support.support_level, SupportLevel::Full);
    296
            assert!(support.required_modifications.is_empty());
    297
            assert_eq!(support.compatibility_score, 0.9);
    298
        }
    299
    300
        #[test]
    301
        fn test_platform_support_partial() {
    302
            let support = PlatformSupport {
    303
                platform: "browser".to_string(),
    304
                support_level: SupportLevel::Partial,
    305
                compatibility_score: 0.7,
    306
                required_modifications: vec!["Remove filesystem access".to_string()],
    307
                runtime_requirements: None,
    308
            };
    309
    310
            assert_eq!(support.support_level, SupportLevel::Partial);
    311
            assert_eq!(support.required_modifications.len(), 1);
    312
            assert_eq!(support.compatibility_score, 0.7);
    313
            assert!(support.runtime_requirements.is_none());
    314
        }
    315
    316
        // ========== FeatureUsage Tests ==========
    317
    318
        #[test]
    319
        fn test_feature_usage_creation() {
    320
            let mut core = HashSet::new();
    321
            core.insert("memory".to_string());
    322
            core.insert("tables".to_string());
    323
    324
            let mut proposal = HashSet::new();
    325
            proposal.insert("simd".to_string());
    326
    327
            let usage = FeatureUsage {
    328
                core_features: core,
    329
                proposal_features: proposal,
    330
                platform_specific: HashMap::new(),
    331
                compatibility: HashMap::new(),
    332
            };
    333
    334
            assert_eq!(usage.core_features.len(), 2);
    335
            assert_eq!(usage.proposal_features.len(), 1);
    336
            assert!(usage.platform_specific.is_empty());
    337
        }
    338
    339
        #[test]
    340
        fn test_feature_usage_with_proposals() {
    341
            let mut proposals = HashSet::new();
    342
            proposals.insert("threads".to_string());
    343
            proposals.insert("simd".to_string());
    344
    345
            let usage = FeatureUsage {
    346
                core_features: HashSet::new(),
    347
                proposal_features: proposals,
    348
                platform_specific: HashMap::new(),
    349
                compatibility: HashMap::new(),
    350
            };
    351
    352
            assert_eq!(usage.proposal_features.len(), 2);
    353
            assert!(usage.proposal_features.contains(&"threads".to_string()));
    354
        }
    355
    356
        // ========== SizeAnalysis Tests ==========
    357
    358
        #[test]
    359
        fn test_size_analysis_creation() {
    360
            let analysis = SizeAnalysis {
    361
                total_size: 10240,
    362
                code_size: 6000,
    363
                data_size: 2000,
    364
                custom_sections_size: 1240,
    365
                section_sizes: HashMap::new(),
    366
                platform_limits: HashMap::new(),
    367
            };
    368
    369
            assert_eq!(analysis.total_size, 10240);
    370
            assert_eq!(analysis.code_size, 6000);
    371
            assert_eq!(analysis.data_size, 2000);
    372
            assert_eq!(analysis.custom_sections_size, 1240);
    373
        }
    374
    375
        #[test]
    376
        fn test_size_analysis_with_sections() {
    377
            let mut sections = HashMap::new();
    378
            sections.insert("code".to_string(), 6000);
    379
            sections.insert("data".to_string(), 2000);
    380
            sections.insert("debug".to_string(), 500);
    381
    382
            let analysis = SizeAnalysis {
    383
                total_size: 10240,
    384
                code_size: 6000,
    385
                data_size: 2000,
    386
                custom_sections_size: 1500,
    387
                section_sizes: sections,
    388
                platform_limits: HashMap::new(),
    389
            };
    390
    391
            assert_eq!(analysis.section_sizes.len(), 3);
    392
            assert_eq!(*analysis.section_sizes.get("debug").unwrap(), 500);
    393
        }
    394
    395
        // ========== PortabilityAnalyzer Tests ==========
    396
    397
        #[test]
    398
        fn test_analyzer_creation() {
    399
            let analyzer = create_test_analyzer();
    400
            // Default config has 6 platforms
    401
            assert_eq!(analyzer.config.target_platforms.len(), 6);
    402
        }
    403
    404
        #[test]
    405
        fn test_analyzer_with_custom_config() {
    406
            let mut config = create_test_config();
    407
            config.strict_mode = true;
    408
            config.check_performance = false;
    409
    410
            let analyzer = PortabilityAnalyzer::new_with_config(config);
    411
            assert!(analyzer.config.strict_mode);
    412
            assert!(!analyzer.config.check_performance);
    413
        }
    414
    415
        #[test]
    416
        fn test_analyzer_default_config() {
    417
            let analyzer = create_test_analyzer();
    418
            // Test that analyzer is created successfully
    419
            assert!(analyzer.config.check_api_compatibility);
    420
            assert!(analyzer.config.check_size_constraints);
    421
            assert!(analyzer.config.check_performance);
    422
            assert!(analyzer.config.check_security);
    423
        }
    424
    425
        #[test]
    426
        fn test_analyzer_custom_config() {
    427
            let analyzer = create_test_analyzer_with_config();
    428
            // Verify custom config is applied
    429
            assert_eq!(analyzer.config.target_platforms.len(), 3);
    430
            assert!(analyzer.config.target_platforms.contains(&"wasmtime".to_string()));
    431
            assert!(analyzer.config.target_platforms.contains(&"wasmer".to_string()));
    432
            assert!(analyzer.config.target_platforms.contains(&"browser".to_string()));
    433
        }
    434
    435
        #[test]
    436
        fn test_analyzer_strict_mode() {
    437
            let mut config = create_test_config();
    438
            config.strict_mode = true;
    439
            let analyzer = PortabilityAnalyzer::new_with_config(config);
    440
            assert!(analyzer.config.strict_mode);
    441
    442
            // Test non-strict mode
    443
            let mut config2 = create_test_config();
    444
            config2.strict_mode = false;
    445
            let analyzer2 = PortabilityAnalyzer::new_with_config(config2);
    446
            assert!(!analyzer2.config.strict_mode);
    447
        }
    448
    449
        // ========== PortabilityReport Tests ==========
    450
    451
        #[test]
    452
        fn test_portability_report_creation() {
    453
            let report = PortabilityReport {
    454
                component_info: create_test_component_info(),
    455
                score: create_test_portability_score(),
    456
                issues: vec![],
    457
                recommendations: vec![],
    458
                platform_support: HashMap::new(),
    459
                feature_usage: FeatureUsage {
    460
                    core_features: HashSet::new(),
    461
                    proposal_features: HashSet::new(),
    462
                    platform_specific: HashMap::new(),
    463
                    compatibility: HashMap::new(),
    464
                },
    465
                size_analysis: SizeAnalysis {
    466
                    total_size: 0,
    467
                    code_size: 0,
    468
                    data_size: 0,
    469
                    custom_sections_size: 0,
    470
                    section_sizes: HashMap::new(),
    471
                    platform_limits: HashMap::new(),
    472
                },
    473
            };
    474
    475
            assert_eq!(report.component_info.name, "test_component");
    476
            assert_eq!(report.score.overall_score, 0.85);
    477
            assert!(report.issues.is_empty());
    478
            assert!(report.recommendations.is_empty());
    479
        }
    480
    481
        #[test]
    482
        fn test_portability_report_with_issues() {
    483
            let issue = CompatibilityIssue {
    484
                severity: IssueSeverity::Warning,
    485
                category: IssueCategory::FeatureNotSupported,
    486
                affected_platforms: vec!["browser".to_string()],
    487
                description: "Threading not supported".to_string(),
    488
                fix_suggestion: Some("Use web workers".to_string()),
    489
            };
    490
    491
            let report = PortabilityReport {
    492
                component_info: create_test_component_info(),
    493
                score: create_test_portability_score(),
    494
                issues: vec![issue],
    495
                recommendations: vec![],
    496
                platform_support: HashMap::new(),
    497
                feature_usage: FeatureUsage {
    498
                    core_features: HashSet::new(),
    499
                    proposal_features: HashSet::new(),
    500
                    platform_specific: HashMap::new(),
    501
                    compatibility: HashMap::new(),
    502
                },
    503
                size_analysis: SizeAnalysis {
    504
                    total_size: 0,
    505
                    code_size: 0,
    506
                    data_size: 0,
    507
                    custom_sections_size: 0,
    508
                    section_sizes: HashMap::new(),
    509
                    platform_limits: HashMap::new(),
    510
                },
    511
            };
    512
    513
            assert_eq!(report.issues.len(), 1);
    514
            assert_eq!(report.issues[0].severity, IssueSeverity::Warning);
    515
        }
    516
    517
        #[test]
    518
        fn test_portability_report_serialization() {
    519
            let report = PortabilityReport {
    520
                component_info: create_test_component_info(),
    521
                score: create_test_portability_score(),
    522
                issues: vec![],
    523
                recommendations: vec![],
    524
                platform_support: HashMap::new(),
    525
                feature_usage: FeatureUsage {
    526
                    core_features: HashSet::new(),
    527
                    proposal_features: HashSet::new(),
    528
                    platform_specific: HashMap::new(),
    529
                    compatibility: HashMap::new(),
    530
                },
    531
                size_analysis: SizeAnalysis {
    532
                    total_size: 0,
    533
                    code_size: 0,
    534
                    data_size: 0,
    535
                    custom_sections_size: 0,
    536
                    section_sizes: HashMap::new(),
    537
                    platform_limits: HashMap::new(),
    538
                },
    539
            };
    540
    541
            let json = serde_json::to_string(&report).unwrap();
    542
            let deserialized: PortabilityReport = serde_json::from_str(&json).unwrap();
    543
    544
            assert_eq!(report.component_info.name, deserialized.component_info.name);
    545
            assert_eq!(report.score.overall_score, deserialized.score.overall_score);
    546
        }
    547
    548
        // ========== Integration Tests ==========
    549
    550
        #[test]
    551
        fn test_full_portability_analysis_workflow() {
    552
            // Test creating complete portability report
    553
            let report = PortabilityReport {
    554
                component_info: create_test_component_info(),
    555
                score: create_test_portability_score(),
    556
                issues: vec![
    557
                    CompatibilityIssue {
    558
                        severity: IssueSeverity::Info,
    559
                        category: IssueCategory::Performance,
    560
                        affected_platforms: vec!["browser".to_string()],
    561
                        description: "Performance may vary".to_string(),
    562
                        fix_suggestion: None,
    563
                    },
    564
                ],
    565
                recommendations: vec![
    566
                    Recommendation {
    567
                        priority: RecommendationPriority::Low,
    568
                        title: "Consider optimization".to_string(),
    569
                        description: "Optimize for browser platform".to_string(),
    570
                        impact: 0.05,
    571
                        platforms: vec!["browser".to_string()],
    572
                    },
    573
                ],
    574
                platform_support: HashMap::new(),
    575
                feature_usage: FeatureUsage {
    576
                    core_features: HashSet::new(),
    577
                    proposal_features: HashSet::new(),
    578
                    platform_specific: HashMap::new(),
    579
                    compatibility: HashMap::new(),
    580
                },
    581
                size_analysis: SizeAnalysis {
    582
                    total_size: 10240,
    583
                    code_size: 6000,
    584
                    data_size: 2000,
    585
                    custom_sections_size: 1240,
    586
                    section_sizes: HashMap::new(),
    587
                    platform_limits: HashMap::new(),
    588
                },
    589
            };
    590
    591
            // Check report completeness
    592
            assert!(!report.component_info.name.is_empty());
    593
            assert!(report.score.overall_score >= 0.0);
    594
            assert!(report.score.overall_score <= 1.0);
    595
            assert_eq!(report.issues.len(), 1);
    596
            assert_eq!(report.recommendations.len(), 1);
    597
        }
    598
    599
        #[test]
    600
        fn test_enum_variants() {
    601
            // Test all IssueSeverity variants
    602
            let severities = vec![
    603
                IssueSeverity::Error,
    604
                IssueSeverity::Warning,
    605
                IssueSeverity::Info,
    606
            ];
    607
            for s in &severities {
    608
                assert!(matches!(s, IssueSeverity::Error | IssueSeverity::Warning | IssueSeverity::Info));
    609
            }
    610
    611
            // Test all IssueCategory variants
    612
            let categories = [IssueCategory::ApiIncompatibility,
    613
                IssueCategory::FeatureNotSupported,
    614
                IssueCategory::SizeConstraint,
    615
                IssueCategory::Performance,
    616
                IssueCategory::Security,
    617
                IssueCategory::Configuration];
    618
            assert_eq!(categories.len(), 6);
    619
    620
            // Test RecommendationPriority variants
    621
            let priorities = [RecommendationPriority::Low,
    622
                RecommendationPriority::Medium,
    623
                RecommendationPriority::High];
    624
            assert_eq!(priorities.len(), 3);
    625
    626
            // Test SupportLevel variants
    627
            let levels = [SupportLevel::Full,
    628
                SupportLevel::Partial,
    629
                SupportLevel::None];
    630
            assert_eq!(levels.len(), 3);
    631
        }
    632
    633
        #[test]
    634
        fn test_complex_portability_score() {
    635
            let mut platform_scores = HashMap::new();
    636
            platform_scores.insert("wasmtime".to_string(), 1.0);
    637
            platform_scores.insert("wasmer".to_string(), 0.95);
    638
            platform_scores.insert("browser".to_string(), 0.75);
    639
            platform_scores.insert("node".to_string(), 0.85);
    640
    641
            let mut feature_scores = HashMap::new();
    642
            feature_scores.insert("memory".to_string(), 1.0);
    643
            feature_scores.insert("tables".to_string(), 1.0);
    644
            feature_scores.insert("threading".to_string(), 0.5);
    645
            feature_scores.insert("simd".to_string(), 0.8);
    646
            feature_scores.insert("bulk-memory".to_string(), 0.9);
    647
    648
            let score = PortabilityScore {
    649
                overall_score: 0.875,
    650
                platform_scores,
    651
                feature_scores,
    652
                api_compatibility: 0.92,
    653
                size_efficiency: 0.95,
    654
                performance_portability: 0.78,
    655
                security_compliance: 1.0,
    656
            };
    657
    658
            assert_eq!(score.platform_scores.len(), 4);
    659
            assert_eq!(score.feature_scores.len(), 5);
    660
            assert_eq!(score.security_compliance, 1.0);
    661
        }
    662
    663
        #[test]
    664
        fn test_edge_case_scores() {
    665
            // Test minimum scores
    666
            let min_score = PortabilityScore {
    667
                overall_score: 0.0,
    668
                platform_scores: HashMap::new(),
    669
                feature_scores: HashMap::new(),
    670
                api_compatibility: 0.0,
    671
                size_efficiency: 0.0,
    672
                performance_portability: 0.0,
    673
                security_compliance: 0.0,
    674
            };
    675
    676
            assert_eq!(min_score.overall_score, 0.0);
    677
            assert!(min_score.platform_scores.is_empty());
    678
    679
            // Test maximum scores
    680
            let mut perfect_platforms = HashMap::new();
    681
            perfect_platforms.insert("all".to_string(), 1.0);
    682
    683
            let max_score = PortabilityScore {
    684
                overall_score: 1.0,
    685
                platform_scores: perfect_platforms,
    686
                feature_scores: HashMap::new(),
    687
                api_compatibility: 1.0,
    688
                size_efficiency: 1.0,
    689
                performance_portability: 1.0,
    690
                security_compliance: 1.0,
    691
            };
    692
    693
            assert_eq!(max_score.overall_score, 1.0);
    694
            assert_eq!(max_score.api_compatibility, 1.0);
    695
        }
    696
    697
        #[test]
    698
        fn test_component_info_edge_cases() {
    699
            // Test component with maximum values
    700
            let mut max_features = HashSet::new();
    701
            for i in 0..20 {
    702
                max_features.insert(format!("feature_{i}"));
    703
            }
    704
    705
            let large_component = ComponentInfo {
    706
                name: "large_component".to_string(),
    707
                version: "99.99.99".to_string(),
    708
                size: usize::MAX,
    709
                exports_count: 1000,
    710
                imports_count: 500,
    711
                features: max_features,
    712
            };
    713
    714
            assert_eq!(large_component.features.len(), 20);
    715
            assert_eq!(large_component.exports_count, 1000);
    716
            assert_eq!(large_component.size, usize::MAX);
    717
    718
            // Test component with minimum values
    719
            let minimal_component = ComponentInfo {
    720
                name: String::new(),
    721
                version: String::new(),
    722
                size: 0,
    723
                exports_count: 0,
    724
                imports_count: 0,
    725
                features: HashSet::new(),
    726
            };
    727
    728
            assert!(minimal_component.name.is_empty());
    729
            assert_eq!(minimal_component.size, 0);
    730
        }
    731
    732
        #[test]
    733
        fn test_platform_support_variations() {
    734
            let support_variations = vec![
    735
                PlatformSupport {
    736
                    platform: "wasmtime".to_string(),
    737
                    support_level: SupportLevel::Full,
    738
                    compatibility_score: 1.0,
    739
                    required_modifications: vec![],
    740
                    runtime_requirements: Some(">=1.0.0".to_string()),
    741
                },
    742
                PlatformSupport {
    743
                    platform: "wasmer".to_string(),
    744
                    support_level: SupportLevel::Partial,
    745
                    compatibility_score: 0.8,
    746
                    required_modifications: vec!["Remove SIMD".to_string()],
    747
                    runtime_requirements: Some(">=2.0.0".to_string()),
    748
                },
    749
                PlatformSupport {
    750
                    platform: "browser".to_string(),
    751
                    support_level: SupportLevel::None,
    752
                    compatibility_score: 0.0,
    753
                    required_modifications: vec!["Complete rewrite".to_string()],
    754
                    runtime_requirements: None,
    755
                },
    756
            ];
    757
    758
            assert_eq!(support_variations.len(), 3);
    759
            assert_eq!(support_variations[0].support_level, SupportLevel::Full);
    760
            assert_eq!(support_variations[1].support_level, SupportLevel::Partial);
    761
            assert_eq!(support_variations[2].support_level, SupportLevel::None);
    762
        }
    763
    764
        #[test]
    765
        fn test_feature_usage_complex() {
    766
            let mut core_features = HashSet::new();
    767
            core_features.insert("memory".to_string());
    768
            core_features.insert("tables".to_string());
    769
            core_features.insert("globals".to_string());
    770
    771
            let mut proposal_features = HashSet::new();
    772
            proposal_features.insert("threads".to_string());
    773
            proposal_features.insert("simd".to_string());
    774
            proposal_features.insert("reference-types".to_string());
    775
    776
            let mut platform_specific = HashMap::new();
    777
            let mut browser_features = HashSet::new();
    778
            browser_features.insert("webgl".to_string());
    779
            platform_specific.insert("browser".to_string(), browser_features);
    780
    781
            let usage = FeatureUsage {
    782
                core_features: core_features.clone(),
    783
                proposal_features: proposal_features.clone(),
    784
                platform_specific,
    785
                compatibility: HashMap::new(),
    786
            };
    787
    788
            assert_eq!(usage.core_features.len(), 3);
    789
            assert_eq!(usage.proposal_features.len(), 3);
    790
            assert_eq!(usage.platform_specific.len(), 1);
    791
            assert!(usage.core_features.contains("memory"));
    792
            assert!(usage.proposal_features.contains("threads"));
    793
        }
    794
    795
        #[test]
    796
        fn test_size_analysis_comprehensive() {
    797
            let mut section_sizes = HashMap::new();
    798
            section_sizes.insert("type".to_string(), 1024);
    799
            section_sizes.insert("import".to_string(), 512);
    800
            section_sizes.insert("function".to_string(), 256);
    801
            section_sizes.insert("table".to_string(), 128);
    802
            section_sizes.insert("memory".to_string(), 64);
    803
            section_sizes.insert("global".to_string(), 32);
    804
            section_sizes.insert("export".to_string(), 256);
    805
            section_sizes.insert("start".to_string(), 8);
    806
            section_sizes.insert("element".to_string(), 512);
    807
            section_sizes.insert("code".to_string(), 8192);
    808
            section_sizes.insert("data".to_string(), 4096);
    809
    810
            let mut platform_limits = HashMap::new();
    811
            platform_limits.insert("browser".to_string(), 1024 * 1024 * 4); // 4MB
    812
            platform_limits.insert("wasmtime".to_string(), 1024 * 1024 * 1024); // 1GB
    813
    814
            let analysis = SizeAnalysis {
    815
                total_size: 15080,
    816
                code_size: 8192,
    817
                data_size: 4096,
    818
                custom_sections_size: 0,
    819
                section_sizes,
    820
                platform_limits,
    821
            };
    822
    823
            assert_eq!(analysis.section_sizes.len(), 11);
    824
            assert_eq!(analysis.platform_limits.len(), 2);
    825
            assert_eq!(*analysis.section_sizes.get("code").unwrap(), 8192);
    826
            assert_eq!(*analysis.platform_limits.get("browser").unwrap(), 4_194_304);
    827
        }
    828
    }
    829
    830
    use anyhow::Result;
    831
    use serde::{Deserialize, Serialize};
    832
    use std::collections::{HashMap, HashSet};
    833
    use std::fmt;
    834
    use super::component::WasmComponent;
    835
    836
    /// Portability analyzer for WASM components
    837
    pub struct PortabilityAnalyzer {
    838
        /// Analysis configuration
    839
        config: AnalysisConfig,
    840
    841
        /// Feature compatibility matrix
    842
        compatibility_matrix: CompatibilityMatrix,
    843
    844
        /// Platform requirements
    845
        platform_requirements: HashMap<String, PlatformRequirements>,
    846
    }
    847
    848
    /// Portability score for a component
    849
    #[derive(Debug, Clone, Serialize, Deserialize)]
    850
    pub struct PortabilityScore {
    851
        /// Overall portability score (0.0 - 1.0)
    852
        pub overall_score: f64,
    853
    854
        /// Platform-specific scores
    855
        pub platform_scores: HashMap<String, f64>,
    856
    857
        /// Feature compatibility scores
    858
        pub feature_scores: HashMap<String, f64>,
    859
    860
        /// API compatibility score
    861
        pub api_compatibility: f64,
    862
    863
        /// Size efficiency score
    864
        pub size_efficiency: f64,
    865
    866
        /// Performance portability score
    867
        pub performance_portability: f64,
    868
    869
        /// Safety compliance score
    870
        pub security_compliance: f64,
    871
    }
    872
    873
    /// Detailed portability report
    874
    #[derive(Debug, Clone, Serialize, Deserialize)]
    875
    pub struct PortabilityReport {
    876
        /// Component information
    877
        pub component_info: ComponentInfo,
    878
    879
        /// Portability score
    880
        pub score: PortabilityScore,
    881
    882
        /// Compatibility issues
    883
        pub issues: Vec<CompatibilityIssue>,
    884
    885
        /// Recommendations
    886
        pub recommendations: Vec<Recommendation>,
    887
    888
        /// Platform support matrix
    889
        pub platform_support: HashMap<String, PlatformSupport>,
    890
    891
        /// Feature usage analysis
    892
        pub feature_usage: FeatureUsage,
    893
    894
        /// Size analysis
    895
        pub size_analysis: SizeAnalysis,
    896
    }
    897
    898
    /// Analysis configuration
    899
    #[derive(Debug, Clone, Serialize, Deserialize)]
    900
    pub struct AnalysisConfig {
    901
        /// Target platforms to analyze
    902
        pub target_platforms: Vec<String>,
    903
    904
        /// Check API compatibility
    905
        pub check_api_compatibility: bool,
    906
    907
        /// Check size constraints
    908
        pub check_size_constraints: bool,
    909
    910
        /// Check performance characteristics
    911
        pub check_performance: bool,
    912
    913
        /// Check safety requirements
    914
        pub check_security: bool,
    915
    916
        /// Strict mode (fail on any incompatibility)
    917
        pub strict_mode: bool,
    918
    }
    919
    920
    /// Component information
    921
    #[derive(Debug, Clone, Serialize, Deserialize)]
    922
    pub struct ComponentInfo {
    923
        /// Component name
    924
        pub name: String,
    925
    926
        /// Component version
    927
        pub version: String,
    928
    929
        /// Component size in bytes
    930
        pub size: usize,
    931
    932
        /// Number of exports
    933
        pub exports_count: usize,
    934
    935
        /// Number of imports
    936
        pub imports_count: usize,
    937
    938
        /// Used features
    939
        pub features: HashSet<String>,
    940
    }
    941
    942
    /// Compatibility issue
    943
    #[derive(Debug, Clone, Serialize, Deserialize)]
    944
    pub struct CompatibilityIssue {
    945
        /// Issue severity
    946
        pub severity: IssueSeverity,
    947
    948
        /// Issue category
    949
        pub category: IssueCategory,
    950
    951
        /// Affected platforms
    952
        pub affected_platforms: Vec<String>,
    953
    954
        /// Issue description
    955
        pub description: String,
    956
    957
        /// Suggested fix
    958
        pub fix_suggestion: Option<String>,
    959
    }
    960
    961
    /// Issue severity levels
    962
    #[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Serialize, Deserialize)]
    963
    pub enum IssueSeverity {
    964
        /// Informational
    965
        Info,
    966
        /// Warning
    967
        Warning,
    968
        /// Error (blocks deployment)
    969
        Error,
    970
        /// Critical (safety or major functionality issue)
    971
        Critical,
    972
    }
    973
    974
    /// Issue categories
    975
    #[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
    976
    pub enum IssueCategory {
    977
        /// API incompatibility
    978
        ApiIncompatibility,
    979
        /// Feature not supported
    980
        FeatureNotSupported,
    981
        /// Size constraint violation
    982
        SizeConstraint,
    983
        /// Performance concern
    984
        Performance,
    985
        /// Safety concern
    986
        Security,
    987
        /// Configuration issue
    988
        Configuration,
    989
    }
    990
    991
    /// Recommendation for improving portability
    992
    #[derive(Debug, Clone, Serialize, Deserialize)]
    993
    pub struct Recommendation {
    994
        /// Recommendation priority
    995
        pub priority: RecommendationPriority,
    996
    997
        /// Recommendation title
    998
        pub title: String,
    999
    1000
        /// Detailed description
    1001
        pub description: String,
    1002
    1003
        /// Expected impact on portability score
    1004
        pub impact: f64,
    1005
    1006
        /// Affected platforms
    1007
        pub platforms: Vec<String>,
    1008
    }
    1009
    1010
    impl fmt::Display for Recommendation {
    1011
    0
        fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
    1012
    0
            write!(f, "{}", self.title)
    1013
    0
        }
    1014
    }
    1015
    1016
    /// Recommendation priority levels
    1017
    #[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Serialize, Deserialize)]
    1018
    pub enum RecommendationPriority {
    1019
        /// Low priority
    1020
        Low,
    1021
        /// Medium priority
    1022
        Medium,
    1023
        /// High priority
    1024
        High,
    1025
        /// Critical (must fix)
    1026
        Critical,
    1027
    }
    1028
    1029
    /// Platform support information
    1030
    #[derive(Debug, Clone, Serialize, Deserialize)]
    1031
    pub struct PlatformSupport {
    1032
        /// Platform name
    1033
        pub platform: String,
    1034
    1035
        /// Support level
    1036
        pub support_level: SupportLevel,
    1037
    1038
        /// Compatibility score (0.0 - 1.0)
    1039
        pub compatibility_score: f64,
    1040
    1041
        /// Required modifications
    1042
        pub required_modifications: Vec<String>,
    1043
    1044
        /// Runtime version requirements
    1045
        pub runtime_requirements: Option<String>,
    1046
    }
    1047
    1048
    /// Support levels for platforms
    1049
    #[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
    1050
    pub enum SupportLevel {
    1051
        /// Full support
    1052
        Full,
    1053
        /// Partial support (some features missing)
    1054
        Partial,
    1055
        /// Limited support (major limitations)
    1056
        Limited,
    1057
        /// No support
    1058
        None,
    1059
    }
    1060
    1061
    /// Feature usage analysis
    1062
    #[derive(Debug, Clone, Serialize, Deserialize)]
    1063
    pub struct FeatureUsage {
    1064
        /// Core WASM features used
    1065
        pub core_features: HashSet<String>,
    1066
    1067
        /// Proposal features used
    1068
        pub proposal_features: HashSet<String>,
    1069
    1070
        /// Platform-specific features
    1071
        pub platform_specific: HashMap<String, HashSet<String>>,
    1072
    1073
        /// Feature compatibility matrix
    1074
        pub compatibility: HashMap<String, Vec<String>>,
    1075
    }
    1076
    1077
    /// Size analysis for portability
    1078
    #[derive(Debug, Clone, Serialize, Deserialize)]
    1079
    pub struct SizeAnalysis {
    1080
        /// Total component size
    1081
        pub total_size: usize,
    1082
    1083
        /// Code size
    1084
        pub code_size: usize,
    1085
    1086
        /// Data size
    1087
        pub data_size: usize,
    1088
    1089
        /// Custom sections size
    1090
        pub custom_sections_size: usize,
    1091
    1092
        /// Size by section
    1093
        pub section_sizes: HashMap<String, usize>,
    1094
    1095
        /// Platform size limits
    1096
        pub platform_limits: HashMap<String, usize>,
    1097
    }
    1098
    1099
    /// Platform requirements
    1100
    #[derive(Debug, Clone)]
    1101
    struct PlatformRequirements {
    1102
        /// Required features
    1103
        required_features: HashSet<String>,
    1104
    1105
        /// Optional features
    1106
        optional_features: HashSet<String>,
    1107
    1108
        /// Incompatible features
    1109
        incompatible_features: HashSet<String>,
    1110
    1111
        /// Size limit in bytes
    1112
        size_limit: Option<usize>,
    1113
    1114
        /// API requirements
    1115
        _api_requirements: HashSet<String>,
    1116
    }
    1117
    1118
    /// Feature compatibility matrix
    1119
    struct CompatibilityMatrix {
    1120
        /// Feature support by platform
    1121
        support: HashMap<String, HashMap<String, bool>>,
    1122
    }
    1123
    1124
    impl Default for AnalysisConfig {
    1125
    0
        fn default() -> Self {
    1126
    0
            Self {
    1127
    0
                target_platforms: vec![
    1128
    0
                    "cloudflare-workers".to_string(),
    1129
    0
                    "fastly-compute".to_string(),
    1130
    0
                    "aws-lambda".to_string(),
    1131
    0
                    "browser".to_string(),
    1132
    0
                    "nodejs".to_string(),
    1133
    0
                    "wasmtime".to_string(),
    1134
    0
                ],
    1135
    0
                check_api_compatibility: true,
    1136
    0
                check_size_constraints: true,
    1137
    0
                check_performance: true,
    1138
    0
                check_security: true,
    1139
    0
                strict_mode: false,
    1140
    0
            }
    1141
    0
        }
    1142
    }
    1143
    1144
    impl Default for PortabilityAnalyzer {
    1145
    0
        fn default() -> Self {
    1146
    0
            Self::new()
    1147
    0
        }
    1148
    }
    1149
    1150
    impl PortabilityAnalyzer {
    1151
        /// Create a new portability analyzer with default config
    1152
    0
        pub fn new() -> Self {
    1153
    0
            Self {
    1154
    0
                config: AnalysisConfig::default(),
    1155
    0
                compatibility_matrix: Self::build_compatibility_matrix(),
    1156
    0
                platform_requirements: Self::build_platform_requirements(),
    1157
    0
            }
    1158
    0
        }
    1159
    1160
        /// Create a new portability analyzer with specific config
    1161
    0
        pub fn new_with_config(config: AnalysisConfig) -> Self {
    1162
    0
            Self {
    1163
    0
                config,
    1164
    0
                compatibility_matrix: Self::build_compatibility_matrix(),
    1165
    0
                platform_requirements: Self::build_platform_requirements(),
    1166
    0
            }
    1167
    0
        }
    1168
    1169
        /// Analyze a WASM component's portability
    1170
    0
        pub fn analyze(&self, component: &WasmComponent) -> Result<PortabilityReport> {
    1171
            // Extract component information
    1172
    0
            let component_info = self.extract_component_info(component)?;
    1173
    1174
            // Calculate portability scores
    1175
    0
            let score = self.calculate_scores(&component_info)?;
    1176
    1177
            // Find compatibility issues
    1178
    0
            let issues = self.find_issues(&component_info)?;
    1179
    1180
            // Generate recommendations
    1181
    0
            let recommendations = self.generate_recommendations(&component_info, &issues)?;
    1182
    1183
            // Analyze platform support
    1184
    0
            let platform_support = self.analyze_platform_support(&component_info)?;
    1185
    1186
            // Analyze feature usage
    1187
    0
            let feature_usage = self.analyze_feature_usage(&component_info)?;
    1188
    1189
            // Analyze size
    1190
    0
            let size_analysis = self.analyze_size(component)?;
    1191
    1192
    0
            Ok(PortabilityReport {
    1193
    0
                component_info,
    1194
    0
                score,
    1195
    0
                issues,
    1196
    0
                recommendations,
    1197
    0
                platform_support,
    1198
    0
                feature_usage,
    1199
    0
                size_analysis,
    1200
    0
            })
    1201
    0
        }
    1202
    1203
    0
        fn extract_component_info(&self, component: &WasmComponent) -> Result<ComponentInfo> {
    1204
    0
            let mut features = HashSet::new();
    1205
    1206
            // Analyze bytecode to detect used features
    1207
            // In a real implementation, this would parse the WASM module
    1208
    0
            if component.bytecode.len() > 1024 * 100 {
    1209
    0
                features.insert("large-module".to_string());
    1210
    0
            }
    1211
    1212
    0
            Ok(ComponentInfo {
    1213
    0
                name: component.name.clone(),
    1214
    0
                version: component.version.clone(),
    1215
    0
                size: component.bytecode.len(),
    1216
    0
                exports_count: component.exports.len(),
    1217
    0
                imports_count: component.imports.len(),
    1218
    0
                features,
    1219
    0
            })
    1220
    0
        }
    1221
    1222
    0
        fn calculate_scores(&self, info: &ComponentInfo) -> Result<PortabilityScore> {
    1223
    0
            let mut platform_scores = HashMap::new();
    1224
    1225
            // Calculate scores for each platform
    1226
    0
            for platform in &self.config.target_platforms {
    1227
    0
                let score = self.calculate_platform_score(info, platform)?;
    1228
    0
                platform_scores.insert(platform.clone(), score);
    1229
            }
    1230
    1231
            // Calculate feature scores
    1232
    0
            let feature_scores = self.calculate_feature_scores(info)?;
    1233
    1234
            // Calculate other scores
    1235
    0
            let api_compatibility = self.calculate_api_compatibility(info)?;
    1236
    0
            let size_efficiency = self.calculate_size_efficiency(info)?;
    1237
    0
            let performance_portability = self.calculate_performance_portability(info)?;
    1238
    0
            let security_compliance = self.calculate_security_compliance(info)?;
    1239
    1240
            // Calculate overall score
    1241
    0
            let overall_score = Self::calculate_overall_score(
    1242
    0
                &platform_scores,
    1243
    0
                &feature_scores,
    1244
    0
                api_compatibility,
    1245
    0
                size_efficiency,
    1246
    0
                performance_portability,
    1247
    0
                security_compliance,
    1248
            );
    1249
    1250
    0
            Ok(PortabilityScore {
    1251
    0
                overall_score,
    1252
    0
                platform_scores,
    1253
    0
                feature_scores,
    1254
    0
                api_compatibility,
    1255
    0
                size_efficiency,
    1256
    0
                performance_portability,
    1257
    0
                security_compliance,
    1258
    0
            })
    1259
    0
        }
    1260
    1261
    0
        fn calculate_platform_score(&self, info: &ComponentInfo, platform: &str) -> Result<f64> {
    1262
    0
            let requirements = self.platform_requirements.get(platform);
    1263
    1264
    0
            if let Some(reqs) = requirements {
    1265
    0
                let mut score = 1.0;
    1266
    1267
                // Check size constraints
    1268
    0
                if let Some(limit) = reqs.size_limit {
    1269
    0
                    if info.size > limit {
    1270
    0
                        score *= 0.5; // Penalty for exceeding size limit
    1271
    0
                    }
    1272
    0
                }
    1273
    1274
                // Check feature compatibility
    1275
    0
                for feature in &info.features {
    1276
    0
                    if reqs.incompatible_features.contains(feature) {
    1277
    0
                        score *= 0.0; // Incompatible feature
    1278
    0
                    } else if !reqs.required_features.contains(feature) && !reqs.optional_features.contains(feature) {
    1279
    0
                        score *= 0.8; // Unknown feature
    1280
    0
                    }
    1281
                }
    1282
    1283
    0
                Ok(score)
    1284
            } else {
    1285
    0
                Ok(0.5) // Unknown platform
    1286
            }
    1287
    0
        }
    1288
    1289
    0
        fn calculate_feature_scores(&self, info: &ComponentInfo) -> Result<HashMap<String, f64>> {
    1290
    0
            let mut scores = HashMap::new();
    1291
    1292
            // Score each feature based on platform support
    1293
    0
            for feature in &info.features {
    1294
    0
                let mut support_count = 0;
    1295
    0
                let total_platforms = self.config.target_platforms.len();
    1296
    1297
    0
                for platform in &self.config.target_platforms {
    1298
    0
                    if let Some(platform_features) = self.compatibility_matrix.support.get(platform) {
    1299
    0
                        if platform_features.get(feature).copied().unwrap_or(false) {
    1300
    0
                            support_count += 1;
    1301
    0
                        }
    1302
    0
                    }
    1303
                }
    1304
    1305
    0
                let score = f64::from(support_count) / total_platforms as f64;
    1306
    0
                scores.insert(feature.clone(), score);
    1307
            }
    1308
    1309
    0
            Ok(scores)
    1310
    0
        }
    1311
    1312
    0
        fn calculate_api_compatibility(&self, _info: &ComponentInfo) -> Result<f64> {
    1313
            // Check if APIs used are compatible across platforms
    1314
            // Simplified implementation
    1315
    0
            Ok(0.9)
    1316
    0
        }
    1317
    1318
    0
        fn calculate_size_efficiency(&self, info: &ComponentInfo) -> Result<f64> {
    1319
            // Score based on component size
    1320
    0
            let size_kb = info.size as f64 / 1024.0;
    1321
    1322
    0
            if size_kb < 50.0 {
    1323
    0
                Ok(1.0)
    1324
    0
            } else if size_kb < 100.0 {
    1325
    0
                Ok(0.9)
    1326
    0
            } else if size_kb < 500.0 {
    1327
    0
                Ok(0.7)
    1328
    0
            } else if size_kb < 1000.0 {
    1329
    0
                Ok(0.5)
    1330
            } else {
    1331
    0
                Ok(0.3)
    1332
            }
    1333
    0
        }
    1334
    1335
    0
        fn calculate_performance_portability(&self, _info: &ComponentInfo) -> Result<f64> {
    1336
            // Analyze performance characteristics
    1337
            // Simplified implementation
    1338
    0
            Ok(0.85)
    1339
    0
        }
    1340
    1341
    0
        fn calculate_security_compliance(&self, _info: &ComponentInfo) -> Result<f64> {
    1342
            // Check safety requirements
    1343
            // Simplified implementation
    1344
    0
            Ok(0.95)
    1345
    0
        }
    1346
    1347
    0
        fn calculate_overall_score(
    1348
    0
            platform_scores: &HashMap<String, f64>,
    1349
    0
            feature_scores: &HashMap<String, f64>,
    1350
    0
            api_compatibility: f64,
    1351
    0
            size_efficiency: f64,
    1352
    0
            performance_portability: f64,
    1353
    0
            security_compliance: f64,
    1354
    0
        ) -> f64 {
    1355
    0
            let platform_avg = if platform_scores.is_empty() {
    1356
    0
                0.0
    1357
            } else {
    1358
    0
                platform_scores.values().sum::<f64>() / platform_scores.len() as f64
    1359
            };
    1360
    1361
    0
            let feature_avg = if feature_scores.is_empty() {
    1362
    0
                1.0
    1363
            } else {
    1364
    0
                feature_scores.values().sum::<f64>() / feature_scores.len() as f64
    1365
            };
    1366
    1367
            // Weighted average
    1368
    0
            platform_avg * 0.3 +
    1369
    0
             feature_avg * 0.2 +
    1370
    0
             api_compatibility * 0.2 +
    1371
    0
             size_efficiency * 0.1 +
    1372
    0
             performance_portability * 0.1 +
    1373
    0
             security_compliance * 0.1
    1374
    0
        }
    1375
    1376
    0
        fn find_issues(&self, info: &ComponentInfo) -> Result<Vec<CompatibilityIssue>> {
    1377
    0
            let mut issues = Vec::new();
    1378
    1379
            // Check size constraints
    1380
    0
            for platform in &self.config.target_platforms {
    1381
    0
                if let Some(reqs) = self.platform_requirements.get(platform) {
    1382
    0
                    if let Some(limit) = reqs.size_limit {
    1383
    0
                        if info.size > limit {
    1384
    0
                            issues.push(CompatibilityIssue {
    1385
    0
                                severity: IssueSeverity::Warning,
    1386
    0
                                category: IssueCategory::SizeConstraint,
    1387
    0
                                affected_platforms: vec![platform.clone()],
    1388
    0
                                description: format!(
    1389
    0
                                    "Component size ({} KB) exceeds {} platform limit ({} KB)",
    1390
    0
                                    info.size / 1024,
    1391
    0
                                    platform,
    1392
    0
                                    limit / 1024
    1393
    0
                                ),
    1394
    0
                                fix_suggestion: Some("Consider optimizing component size or splitting functionality".to_string()),
    1395
    0
                            });
    1396
    0
                        }
    1397
    0
                    }
    1398
    0
                }
    1399
            }
    1400
    1401
    0
            Ok(issues)
    1402
    0
        }
    1403
    1404
    0
        fn generate_recommendations(&self, info: &ComponentInfo, issues: &[CompatibilityIssue]) -> Result<Vec<Recommendation>> {
    1405
    0
            let mut recommendations = Vec::new();
    1406
    1407
            // Size optimization recommendation
    1408
    0
            if info.size > 100 * 1024 {
    1409
    0
                recommendations.push(Recommendation {
    1410
    0
                    priority: RecommendationPriority::High,
    1411
    0
                    title: "Optimize component size".to_string(),
    1412
    0
                    description: "Component size can be reduced through optimization techniques".to_string(),
    1413
    0
                    impact: 0.2,
    1414
    0
                    platforms: self.config.target_platforms.clone(),
    1415
    0
                });
    1416
    0
            }
    1417
    1418
            // Feature compatibility recommendations
    1419
    0
            for issue in issues {
    1420
    0
                if issue.category == IssueCategory::FeatureNotSupported {
    1421
    0
                    recommendations.push(Recommendation {
    1422
    0
                        priority: RecommendationPriority::Critical,
    1423
    0
                        title: "Remove incompatible features".to_string(),
    1424
    0
                        description: issue.description.clone(),
    1425
    0
                        impact: 0.3,
    1426
    0
                        platforms: issue.affected_platforms.clone(),
    1427
    0
                    });
    1428
    0
                }
    1429
            }
    1430
    1431
    0
            Ok(recommendations)
    1432
    0
        }
    1433
    1434
    0
        fn analyze_platform_support(&self, info: &ComponentInfo) -> Result<HashMap<String, PlatformSupport>> {
    1435
    0
            let mut support = HashMap::new();
    1436
    1437
    0
            for platform in &self.config.target_platforms {
    1438
    0
                let score = self.calculate_platform_score(info, platform)?;
    1439
    1440
    0
                let support_level = if score >= 0.9 {
    1441
    0
                    SupportLevel::Full
    1442
    0
                } else if score >= 0.7 {
    1443
    0
                    SupportLevel::Partial
    1444
    0
                } else if score >= 0.3 {
    1445
    0
                    SupportLevel::Limited
    1446
                } else {
    1447
    0
                    SupportLevel::None
    1448
                };
    1449
    1450
    0
                support.insert(platform.clone(), PlatformSupport {
    1451
    0
                    platform: platform.clone(),
    1452
    0
                    support_level,
    1453
    0
                    compatibility_score: score,
    1454
    0
                    required_modifications: Vec::new(),
    1455
    0
                    runtime_requirements: None,
    1456
    0
                });
    1457
            }
    1458
    1459
    0
            Ok(support)
    1460
    0
        }
    1461
    1462
    0
        fn analyze_feature_usage(&self, info: &ComponentInfo) -> Result<FeatureUsage> {
    1463
    0
            Ok(FeatureUsage {
    1464
    0
                core_features: info.features.clone(),
    1465
    0
                proposal_features: HashSet::new(),
    1466
    0
                platform_specific: HashMap::new(),
    1467
    0
                compatibility: HashMap::new(),
    1468
    0
            })
    1469
    0
        }
    1470
    1471
    0
        fn analyze_size(&self, component: &WasmComponent) -> Result<SizeAnalysis> {
    1472
    0
            let mut section_sizes = HashMap::new();
    1473
    1474
            // Add custom sections
    1475
    0
            for (name, data) in &component.custom_sections {
    1476
    0
                section_sizes.insert(name.clone(), data.len());
    1477
    0
            }
    1478
    1479
    0
            let custom_sections_size: usize = component.custom_sections.values().map(std::vec::Vec::len).sum();
    1480
    1481
    0
            Ok(SizeAnalysis {
    1482
    0
                total_size: component.bytecode.len(),
    1483
    0
                code_size: component.bytecode.len() - custom_sections_size,
    1484
    0
                data_size: 0,
    1485
    0
                custom_sections_size,
    1486
    0
                section_sizes,
    1487
    0
                platform_limits: self.get_platform_limits(),
    1488
    0
            })
    1489
    0
        }
    1490
    1491
    0
        fn get_platform_limits(&self) -> HashMap<String, usize> {
    1492
    0
            let mut limits = HashMap::new();
    1493
    0
            limits.insert("cloudflare-workers".to_string(), 10 * 1024 * 1024); // 10MB
    1494
    0
            limits.insert("fastly-compute".to_string(), 50 * 1024 * 1024);    // 50MB
    1495
    0
            limits.insert("aws-lambda".to_string(), 250 * 1024 * 1024);       // 250MB
    1496
    0
            limits.insert("browser".to_string(), 100 * 1024 * 1024);          // 100MB
    1497
    0
            limits
    1498
    0
        }
    1499
    1500
    0
        fn build_compatibility_matrix() -> CompatibilityMatrix {
    1501
    0
            let mut support = HashMap::new();
    1502
    1503
            // Cloudflare Workers feature support
    1504
    0
            let mut cloudflare = HashMap::new();
    1505
    0
            cloudflare.insert("simd".to_string(), false);
    1506
    0
            cloudflare.insert("threads".to_string(), false);
    1507
    0
            cloudflare.insert("bulk-memory".to_string(), true);
    1508
    0
            cloudflare.insert("reference-types".to_string(), true);
    1509
    0
            support.insert("cloudflare-workers".to_string(), cloudflare);
    1510
    1511
            // Browser feature support
    1512
    0
            let mut browser = HashMap::new();
    1513
    0
            browser.insert("simd".to_string(), true);
    1514
    0
            browser.insert("threads".to_string(), true);
    1515
    0
            browser.insert("bulk-memory".to_string(), true);
    1516
    0
            browser.insert("reference-types".to_string(), true);
    1517
    0
            support.insert("browser".to_string(), browser);
    1518
    1519
    0
            CompatibilityMatrix { support }
    1520
    0
        }
    1521
    1522
    0
        fn build_platform_requirements() -> HashMap<String, PlatformRequirements> {
    1523
    0
            let mut requirements = HashMap::new();
    1524
    1525
            // Cloudflare Workers requirements
    1526
    0
            requirements.insert("cloudflare-workers".to_string(), PlatformRequirements {
    1527
    0
                required_features: HashSet::new(),
    1528
    0
                optional_features: HashSet::from(["bulk-memory".to_string(), "reference-types".to_string()]),
    1529
    0
                incompatible_features: HashSet::from(["threads".to_string()]),
    1530
    0
                size_limit: Some(10 * 1024 * 1024),
    1531
    0
                _api_requirements: HashSet::new(),
    1532
    0
            });
    1533
    1534
            // Browser requirements
    1535
    0
            requirements.insert("browser".to_string(), PlatformRequirements {
    1536
    0
                required_features: HashSet::new(),
    1537
    0
                optional_features: HashSet::from(["simd".to_string(), "threads".to_string()]),
    1538
    0
                incompatible_features: HashSet::new(),
    1539
    0
                size_limit: Some(100 * 1024 * 1024),
    1540
    0
                _api_requirements: HashSet::new(),
    1541
    0
            });
    1542
    1543
    0
            requirements
    1544
    0
        }
    1545
    }