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1f563b3716
If the position is in the region that is inserted by the edits, 'pre-edit' position shouldn't exist. So we cannot reuse the node at the position. rdar://problem/45259469 https://bugs.swift.org/browse/SR-8995
106 lines
2.5 KiB
C++
106 lines
2.5 KiB
C++
#include "swift/Parse/SyntaxParsingCache.h"
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#include "gtest/gtest.h"
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#include <iostream>
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using namespace swift;
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using namespace llvm;
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namespace llvm {
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template <typename T>
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void PrintTo(const Optional<T> &optVal, ::std::ostream *os) {
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if (optVal.hasValue())
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*os << *optVal;
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else
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*os << "None";
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}
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} // namespace llvm
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void check(ArrayRef<SourceEdit> Edits, ArrayRef<Optional<size_t>> expected) {
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for (size_t Pos = 0; Pos != expected.size(); ++Pos) {
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Optional<size_t> PrePos =
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SyntaxParsingCache::translateToPreEditPosition(Pos, Edits);
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EXPECT_EQ(PrePos, expected[Pos]) << "At post-edit position " << Pos;
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}
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}
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class TranslateToPreEditPositionTest : public ::testing::Test {};
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TEST_F(TranslateToPreEditPositionTest, SingleEdit1) {
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// Old: ab_xy
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// New: c_xy
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llvm::SmallVector<SourceEdit, 4> Edits = {
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{0, 2, 1} // ab -> c
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};
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// c _ x y
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check(Edits, {None, 2, 3, 4});
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}
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TEST_F(TranslateToPreEditPositionTest, SingleEdit) {
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// Old: ab_xy
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// New: ablah_xy
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llvm::SmallVector<SourceEdit, 4> Edits = {
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{1, 2, 4} // b -> blah
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};
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// a b l a h _ x y
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check(Edits, {0, None, None, None, None, 2, 3, 4});
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}
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TEST_F(TranslateToPreEditPositionTest, SingleInsert) {
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// Old: ab_xy
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// New: 0123ab_xy
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llvm::SmallVector<SourceEdit, 4> Edits = {
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{0, 0, 4} // '' -> 0123
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};
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// 0 1 2 3 a b _ x y
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check(Edits, { None, None, None, None, 0, 1, 2, 3, 4});
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}
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TEST_F(TranslateToPreEditPositionTest, SingleDelete) {
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// Old: ab_xyz
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// New: ab_z
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llvm::SmallVector<SourceEdit, 4> Edits = {
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{3, 5, 0} // xy -> ''
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};
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// a b _ z
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check(Edits, { 0, 1, 2, 5 });
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}
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TEST_F(TranslateToPreEditPositionTest, SimpleMultiEdit) {
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// Old: _ab_xy
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// New: _a1b2_x3y4
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llvm::SmallVector<SourceEdit, 4> Edits = {
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{1, 2, 2}, // a -> a1
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{2, 3, 2}, // b -> b2
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{4, 5, 2}, // x -> x3
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{5, 6, 2}, // y -> y4
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};
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// _ a 1 b 1 _ x 3 y 4
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check(Edits, {0, None, None, None, None, 3, None, None, None, None});
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}
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TEST_F(TranslateToPreEditPositionTest, ComplexMultiEdit) {
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// Old: foo_bar_baz
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// New: xx_edits_baz
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llvm::SmallVector<SourceEdit, 4> Edits = {
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{0, 3, 2}, // foo -> xx
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{4, 7, 0}, // bar -> ''
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{7, 7, 5}, // '' -> edits
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};
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// x x _ e d i t s _ b a z
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check(Edits, {None, None, 3, None, None, None, None, None, 7, 8, 9, 10});
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}
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