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| 1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file | |
| 2 // for details. All rights reserved. Use of this source code is governed by a | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 | |
| 5 library tracer; | |
| 6 | |
| 7 import '../compiler.dart' as api; | |
| 8 import 'dart:async' show EventSink; | |
| 9 import 'ssa/ssa.dart' as ssa; | |
| 10 import 'ssa/ssa_tracer.dart' show HTracer; | |
| 11 import 'cps_ir/cps_ir_nodes.dart' as cps_ir; | |
| 12 import 'cps_ir/cps_ir_tracer.dart' show IRTracer; | |
| 13 import 'dart_backend/tree_ir_nodes.dart' as tree_ir; | |
| 14 import 'dart_backend/tree_ir_tracer.dart' show TreeTracer; | |
| 15 import 'util/util.dart' show Indentation; | |
| 16 import 'dart2jslib.dart'; | |
| 17 | |
| 18 /** | |
| 19 * If non-null, we only trace methods whose name match the regexp defined by the | |
| 20 * given pattern. | |
| 21 */ | |
| 22 const String TRACE_FILTER_PATTERN = const String.fromEnvironment("DUMP_IR"); | |
| 23 | |
| 24 final RegExp TRACE_FILTER = | |
| 25 TRACE_FILTER_PATTERN == null ? null : new RegExp(TRACE_FILTER_PATTERN); | |
| 26 | |
| 27 /** | |
| 28 * Dumps the intermediate representation after each phase in a format | |
| 29 * readable by IR Hydra. | |
| 30 */ | |
| 31 class Tracer extends TracerUtil { | |
| 32 final Compiler compiler; | |
| 33 ItemCompilationContext context; | |
| 34 bool traceActive = false; | |
| 35 final EventSink<String> output; | |
| 36 final bool isEnabled = TRACE_FILTER != null; | |
| 37 | |
| 38 Tracer(Compiler compiler, api.CompilerOutputProvider outputProvider) | |
| 39 : this.compiler = compiler, | |
| 40 output = TRACE_FILTER != null ? outputProvider('dart', 'cfg') : null; | |
| 41 | |
| 42 void traceCompilation(String methodName, | |
| 43 ItemCompilationContext compilationContext) { | |
| 44 if (!isEnabled) return; | |
| 45 traceActive = TRACE_FILTER.hasMatch(methodName); | |
| 46 if (!traceActive) return; | |
| 47 this.context = compilationContext; | |
| 48 tag("compilation", () { | |
| 49 printProperty("name", methodName); | |
| 50 printProperty("method", methodName); | |
| 51 printProperty("date", new DateTime.now().millisecondsSinceEpoch); | |
| 52 }); | |
| 53 } | |
| 54 | |
| 55 void traceGraph(String name, var irObject) { | |
| 56 if (!traceActive) return; | |
| 57 if (irObject is ssa.HGraph) { | |
| 58 new HTracer(output, compiler, context).traceGraph(name, irObject); | |
| 59 } | |
| 60 else if (irObject is cps_ir.FunctionDefinition) { | |
| 61 new IRTracer(output).traceGraph(name, irObject); | |
| 62 } | |
| 63 else if (irObject is tree_ir.FunctionDefinition) { | |
| 64 new TreeTracer(output).traceGraph(name, irObject); | |
| 65 } | |
| 66 } | |
| 67 | |
| 68 void close() { | |
| 69 if (output != null) { | |
| 70 output.close(); | |
| 71 } | |
| 72 } | |
| 73 } | |
| 74 | |
| 75 | |
| 76 abstract class TracerUtil { | |
| 77 EventSink<String> get output; | |
| 78 final Indentation _ind = new Indentation(); | |
| 79 | |
| 80 void tag(String tagName, Function f) { | |
| 81 println("begin_$tagName"); | |
| 82 _ind.indentBlock(f); | |
| 83 println("end_$tagName"); | |
| 84 } | |
| 85 | |
| 86 void println(String string) { | |
| 87 addIndent(); | |
| 88 add(string); | |
| 89 add("\n"); | |
| 90 } | |
| 91 | |
| 92 void printEmptyProperty(String propertyName) { | |
| 93 println(propertyName); | |
| 94 } | |
| 95 | |
| 96 String formatPrty(x) { | |
| 97 if (x is num) { | |
| 98 return '${x}'; | |
| 99 } else if (x is String) { | |
| 100 return '"${x}"'; | |
| 101 } else if (x is Iterable) { | |
| 102 return x.map((s) => formatPrty(s)).join(' '); | |
| 103 } else { | |
| 104 throw "invalid property type: ${x}"; | |
| 105 } | |
| 106 } | |
| 107 | |
| 108 void printProperty(String propertyName, value) { | |
| 109 println("$propertyName ${formatPrty(value)}"); | |
| 110 } | |
| 111 | |
| 112 void add(String string) { | |
| 113 output.add(string); | |
| 114 } | |
| 115 | |
| 116 void addIndent() { | |
| 117 add(_ind.indentation); | |
| 118 } | |
| 119 } | |
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Chromium Code Reviews
Issue 694353007:
Move dart2js from sdk/lib/_internal/compiler to pkg/compiler (Closed)
Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart