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Summary: The current default is to create the preamble on the first reparse, aka second parse. This is useful for clients that do not want to block when opening a file because serializing the preamble takes a bit of time. However, this makes the reparse much more expensive and that may be on the critical path as it's the first interaction a user has with the source code. YouCompleteMe currently optimizes for the first code interaction by parsing the file twice when loaded. That's just unnecessarily slow and this flag helps to avoid that. Reviewers: doug.gregor, klimek Subscribers: cfe-commits Differential Revision: http://reviews.llvm.org/D15490 llvm-svn: 255635
18 lines
652 B
C++
18 lines
652 B
C++
#include "complete-preamble.h"
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void f() {
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std::
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}
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// RUN: env CINDEXTEST_EDITING=1 LIBCLANG_TIMING=1 c-index-test -code-completion-at=%s:3:8 %s -o - 2>&1 | FileCheck -check-prefix=CHECK-CC1 -check-prefix=SECOND %s
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// RUN: env CINDEXTEST_EDITING=1 CINDEXTEST_CREATE_PREAMBLE_ON_FIRST_PARSE=1 LIBCLANG_TIMING=1 c-index-test -code-completion-at=%s:3:8 %s -o - 2>&1 | FileCheck -check-prefix=CHECK-CC1 -check-prefix=FIRST %s
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// FIRST: Precompiling preamble
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// FIRST: Parsing
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// FIRST: Reparsing
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// SECOND: Parsing
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// SECOND: Precompiling preamble
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// SECOND: Reparsing
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// CHECK-CC1: {ResultType void}{TypedText wibble}{LeftParen (}{RightParen )} (50)
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