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Unified Diff: third_party/pkg/angular/lib/tools/parser_generator/generator.dart

Issue 256553002: Revert "Update all Angular libs (run update_all.sh)." (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 6 years, 8 months ago
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Index: third_party/pkg/angular/lib/tools/parser_generator/generator.dart
diff --git a/third_party/pkg/angular/lib/tools/parser_generator/generator.dart b/third_party/pkg/angular/lib/tools/parser_generator/generator.dart
new file mode 100644
index 0000000000000000000000000000000000000000..27877cdf8dc8ae8270a6e7712ed3b095a2766601
--- /dev/null
+++ b/third_party/pkg/angular/lib/tools/parser_generator/generator.dart
@@ -0,0 +1,86 @@
+library generator;
+
+import 'package:angular/core/module.dart';
+import 'package:angular/core/parser/parser.dart';
+import 'package:angular/tools/parser_generator/dart_code_gen.dart';
+
+class NullFilterMap implements FilterMap {
+ call(name) => null;
+ Type operator[](annotation) => null;
+ forEach(fn) { }
+ annotationsFor(type) => null;
+}
+
+class SourcePrinter {
+ printSrc(src) {
+ print(src);
+ }
+}
+
+class ParserGenerator {
+ final Parser _parser;
+ final DartCodeGen _codegen;
+ final SourcePrinter _printer;
+ ParserGenerator(this._parser, this._codegen, this._printer);
+
+ void print(object) {
+ _printer.printSrc('$object');
+ }
+
+ generateParser(Iterable<String> expressions) {
+ print("StaticParserFunctions functions()");
+ print(" => new StaticParserFunctions(");
+ print(" buildEval(), buildAssign());");
+ print("");
+
+ // Compute the function maps.
+ Map eval = {};
+ Map assign = {};
+ expressions.forEach((exp) {
+ generateCode(exp, eval, assign);
+ });
+
+ // Generate the code.
+ generateBuildFunction('buildEval', eval);
+ generateBuildFunction('buildAssign', assign);
+ _codegen.getters.helpers.values.forEach(print);
+ _codegen.holders.helpers.values.forEach(print);
+ _codegen.setters.helpers.values.forEach(print);
+ }
+
+ void generateBuildFunction(String name, Map map) {
+ String mapLiteral = map.keys.map((e) => ' "$e": ${map[e]}').join(',\n');
+ print("Map<String, Function> $name() {");
+ print(" return {\n$mapLiteral\n };");
+ print("}");
+ print("");
+ }
+
+ void generateCode(String exp, Map eval, Map assign) {
+ String escaped = escape(exp);
+ try {
+ Expression e = _parser(exp);
+ if (e.isAssignable) assign[escaped] = getCode(e, true);
+ eval[escaped] = getCode(e, false);
+ } catch (e) {
+ if ("$e".contains('Parser Error') ||
+ "$e".contains('Lexer Error') ||
+ "$e".contains('Unexpected end of expression')) {
+ eval[escaped] = '"${escape(e.toString())}"';
+ } else {
+ rethrow;
+ }
+ }
+ }
+
+ String getCode(Expression e, bool assign) {
+ String args = assign ? "scope, value" : "scope, filters";
+ String code = _codegen.generate(e, assign);
+ if (e.isChain) {
+ code = code.replaceAll('\n', '\n ');
+ return "($args) {\n $code\n }";
+ } else {
+ return "($args) => $code";
+ }
+ }
+}

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