Commit graph

1414 commits

Author SHA1 Message Date
Cyrus Najmabadi
48bef4698b Provide better error recovery when we encounter merge markers in the source.
Previously we would just treat each merge marker as trivia and then continue
scanning and parsing like normal.  This worked well in some scenarios, but
fell down in others like:

```
class C {
    public foo() {
<<<<<<< HEAD
        this.bar();
    }
=======
        this.baz();
    }
>>>>>>> Branch

    public bar() { }
}
```

The problem stems from the previous approach trying to incorporate both branches of the merge into
the final tree.  In a case like this, that approach breaks down entirely.  The the parser ends up
seeing the close curly in both included sections, and it considers the class finished.  Then, it
starts erroring when it encounters "public bar()".

The fix is to only incorporate one of these sections into the tree.  Specifically, we only include
the first section.  The second sectoin is treated like trivia and does not affect the parse at all.
To make the experience more pleasant we do *lexically* classify the second section.  That way it
does not appear as just plain black text in the editor.  Instead, it will have appropriate lexicla
classifications for keywords, literals, comments, operators, punctuation, etc.  However, any syntactic
or semantic feature will not work in the second block due to this being trivia as far as any feature
is concerned.

This experience is still much better than what we had originally (where merge markers would absolutely)
destroy the parse tree.  And it is better than what we checked in last week, which could easily create
a borked tree for many types of merges.

Now, almost all merges should still leave the tree in good shape.  All LS features will work in the
first section, and lexical classification will work in the second.
2014-12-18 19:18:13 -08:00
Cyrus Najmabadi
828b33aae7 Add test demonstrating the problem with conflict markers. 2014-12-18 17:23:34 -08:00
Cyrus Najmabadi
ef2087add5 Merge branch 'master' into layering 2014-12-18 12:20:32 -08:00
Daniel Rosenwasser
af9b56bdd9 Merge pull request #1528 from Microsoft/goToDefOnUnionMethod
Fix crash on go-to-def on union method
2014-12-18 12:11:05 -08:00
Cyrus Najmabadi
67b2f13cce Merge branch 'master' into layering
Conflicts:
	src/compiler/parser.ts
2014-12-18 00:39:56 -08:00
Daniel Rosenwasser
6fed3e2601 Merge pull request #1501 from Arnavion/no-emit
Add -noEmit compiler flag that skips the emit stage in ts.compile()
2014-12-17 18:00:33 -08:00
Anders Hejlsberg
b2a02fe9ef Merge pull request #1443 from Microsoft/improvedTypeInference
Make initial inferences from parameterless function expressions
2014-12-17 16:19:49 -08:00
Cyrus Najmabadi
b37b98138d Merge branch 'master' into layering
Conflicts:
	src/compiler/checker.ts
	src/compiler/utilities.ts
2014-12-17 15:35:30 -08:00
Daniel Rosenwasser
b3ccb562fb Added test for goToDef on union types. 2014-12-17 15:11:43 -08:00
Daniel Rosenwasser
42babc52d3 Use 'definitionCountIs' in union property tests. 2014-12-17 15:11:40 -08:00
Daniel Rosenwasser
6c753496e7 Rename file. 2014-12-17 15:11:38 -08:00
Daniel Rosenwasser
7a1be3cc04 Added test using code from original issue. 2014-12-17 15:11:35 -08:00
Daniel Rosenwasser
af4d7d3ff4 Added goToDef count verification in fourslash facilities. 2014-12-17 15:11:31 -08:00
Daniel Rosenwasser
eaaf7ad468 Normalize a few fourslash line endings. 2014-12-17 15:11:29 -08:00
Cyrus Najmabadi
6a08c54f42 Merge branch 'master' into sourceFileUpdate
Conflicts:
	src/compiler/checker.ts
	src/compiler/diagnosticInformationMap.generated.ts
	src/compiler/diagnosticMessages.json
	src/harness/fourslash.ts
2014-12-17 13:22:04 -08:00
Cyrus Najmabadi
4545549e07 Disable incremental by default before merging into master. 2014-12-17 12:41:08 -08:00
Anders Hejlsberg
a667959b1f Accepting new baselines 2014-12-17 11:50:03 -08:00
Anders Hejlsberg
766756b4b1 Merge branch 'master' into spreadAndRest
Conflicts:
	src/compiler/parser.ts
2014-12-17 11:49:45 -08:00
Cyrus Najmabadi
cd308e78ba Merge branch 'master' into sourceFileUpdate
Conflicts:
	src/compiler/checker.ts
	src/compiler/diagnosticInformationMap.generated.ts
	src/compiler/parser.ts
	tests/baselines/reference/FunctionDeclaration5_es6.errors.txt
	tests/baselines/reference/VariableDeclaration2_es6.errors.txt
	tests/baselines/reference/VariableDeclaration4_es6.errors.txt
	tests/baselines/reference/anonymousModules.errors.txt
	tests/baselines/reference/callSignaturesWithParameterInitializers2.errors.txt
	tests/baselines/reference/conflictMarkerTrivia1.errors.txt
	tests/baselines/reference/dottedModuleName.errors.txt
	tests/baselines/reference/innerModExport1.errors.txt
	tests/baselines/reference/innerModExport2.errors.txt
	tests/baselines/reference/parserAccessors10.errors.txt
	tests/baselines/reference/parserComputedPropertyName5.errors.txt
	tests/baselines/reference/parserErrantEqualsGreaterThanAfterFunction1.errors.txt
	tests/baselines/reference/parserErrantEqualsGreaterThanAfterFunction2.errors.txt
	tests/baselines/reference/parserModifierOnStatementInBlock2.errors.txt
	tests/baselines/reference/parserSkippedTokens16.errors.txt
	tests/baselines/reference/privateIndexer2.errors.txt
2014-12-16 21:50:10 -08:00
Arnavion
cd6eb180c6 Don't emit outputs when -noEmit is specified. 2014-12-16 20:25:19 -08:00
Cyrus Najmabadi
99a189936f Remove last vestiges of the grammar checker from the parser now that it has been entirely moved to the TypeChecker. 2014-12-16 19:59:16 -08:00
Yui T
c2b03b6384 Address code review 2014-12-16 19:53:42 -08:00
Yui T
9c9bd34352 Address code review 2014-12-16 19:49:40 -08:00
Yui T
d7f607234a COMPLETE migrating grammar checking; No more errors 2014-12-16 19:30:08 -08:00
Yui T
fdfd8d4863 Cleaning up migrating grammar checking 2014-12-16 19:11:07 -08:00
Anders Hejlsberg
fab94d84e5 Merge branch 'master' into spreadAndRest
Conflicts:
	src/compiler/parser.ts
2014-12-16 18:09:21 -08:00
Yui T
9ab59a4964 Merge branch 'master' into refactorGrammarCheck
Conflicts:
	src/compiler/diagnosticInformationMap.generated.ts
	src/compiler/diagnosticMessages.json
	src/compiler/parser.ts
	src/compiler/types.ts
	tests/baselines/reference/YieldExpression8_es6.errors.txt
	tests/baselines/reference/ambientErrors.errors.txt
	tests/baselines/reference/giant.errors.txt
2014-12-16 17:38:40 -08:00
Yui T
8dc9f751a3 Complete grammar checking migration; there are still errors which will be fixed once pull master into the branch 2014-12-16 17:32:15 -08:00
Cyrus Najmabadi
f1a2e41a8a Sort diagnostics in our baseline output.
This was we don't get noisy baselines just because a different phase of the compiler reported
the diagnostic.

This helps with Yui's refactoring work to move grammar checks into the type checker.
2014-12-16 15:56:56 -08:00
Yui T
a3e8b6c6d7 Move grammar checking: interfaceDeclaration-remove it from checkModifiers in parser; there are still errors from incomplete grammar migration 2014-12-16 13:47:57 -08:00
Yui T
406576f1fc Move grammar checking: propertyDeclaration, propertySignature; there are still errors from incomplete grammar migration 2014-12-16 13:36:00 -08:00
Yui T
c525877aaa Move grammar checking: moduleDeclaration; there are still errors from incomplete grammar migration 2014-12-16 13:35:31 -08:00
Yui T
003515655e Move grammar checking: methodDeclaration; there are still erros from incomplete grammar migration 2014-12-16 12:51:42 -08:00
Yui T
7a4d8cd8ee Move grammar checking: setAccessor, getAccessor; there are still erros from incomplete grammar migration 2014-12-16 12:25:05 -08:00
Cyrus Najmabadi
c9ee88e5c4 Adding incremental test. 2014-12-16 11:58:47 -08:00
Cyrus Najmabadi
8917e96663 Merge branch 'funcDeclsInBlocks' into sourceFileUpdate
Conflicts:
	src/compiler/parser.ts
	src/compiler/utilities.ts
2014-12-16 03:12:31 -08:00
Cyrus Najmabadi
6326b9d51f Merge branch 'master' into sourceFileUpdate 2014-12-16 02:59:05 -08:00
Cyrus Najmabadi
c7bb0a5ae6 Don't store variable statement flags on its variable declaration children. 2014-12-16 02:50:38 -08:00
Vladimir Matveev
59c73c5f34 Merge pull request #1466 from Microsoft/linked_imports
defer decision whether import used on the right side of import declarati...
2014-12-16 00:46:26 -08:00
Yui T
694771b2d7 Move grammar checking: functionDeclaration; there are still errors from incomplet grammar migration 2014-12-15 23:05:29 -08:00
Cyrus Najmabadi
41e59824fb Merge branch 'master' into funcDeclsInBlocks 2014-12-15 20:50:48 -08:00
Yui T
25a6302b48 Move grammar checking: forStatement 2014-12-15 18:39:44 -08:00
Yui T
010745c371 Move grammar checking: forInStatement; there are still errors from incomplete migration 2014-12-15 18:28:24 -08:00
Yui T
e0e88adfc5 Move grammar checking: variableDeclaration, variableStatements; there are still erros from incomplete grammar migration 2014-12-15 18:10:35 -08:00
Yui T
f22adf6785 Move grammar checking: constructorDeclaration; there are still errors from incomplete grammar migration 2014-12-15 16:42:31 -08:00
Yui T
bcf73a8207 Move grammar checking: enumDeclaration; there are still erros from incomplete grammar migration 2014-12-15 15:26:08 -08:00
Yui T
28a115ef37 Move grammar checking: breakStatement, continueStatement; there are still errors from incomplete grammar migration 2014-12-15 15:05:31 -08:00
Cyrus Najmabadi
14883cb18e Merge branch 'master' into typingHighFidelity 2014-12-14 23:46:05 -08:00
Yui T
b388eb3c2a Move grammar checking: taggedTemplateExpression 2014-12-14 21:12:14 -08:00
Yui T
1cc0d184bb Move grammar checking: shorthandPropertyAssignment; Add more parser test; there are still errors from incomplete migration 2014-12-14 19:14:02 -08:00