- All Known Subinterfaces:
DocSourcePositions
public interface SourcePositions
Provides methods to obtain the position of a Tree within a CompilationUnit.
A position is defined as a simple character offset from the start of a
CompilationUnit where the first character is at offset 0.
- Since:
- 1.6
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Method Summary
Modifier and TypeMethodDescriptionlonggetEndPosition(CompilationUnitTree file, Tree tree) Returns the ending position of tree within file.longgetStartPosition(CompilationUnitTree file, Tree tree) Returns the starting position of tree within file.
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Method Details
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getStartPosition
Returns the starting position of tree within file. If tree is not found within file, or if the starting position is not available, returnsDiagnostic.NOPOS. The returned position must be at the start of the yield of this tree, that is for any sub-tree of this tree, the following must hold:getStartPosition(file, tree) <= getStartPosition(file, subtree)or
getStartPosition(file, tree) == NOPOSor
getStartPosition(file, subtree) == NOPOS- Parameters:
file- CompilationUnit in which to find treetree- tree for which a position is sought- Returns:
- the start position of tree
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getEndPosition
Returns the ending position of tree within file. If tree is not found within file, or if the ending position is not available, returnsDiagnostic.NOPOS. The returned position must be at the end of the yield of this tree, that is for any sub-tree of this tree, the following must hold:
In addition, the following must hold:getEndPosition(file, tree) >= getEndPosition(file, subtree)or
getEndPosition(file, tree) == NOPOSor
getEndPosition(file, subtree) == NOPOSgetStartPosition(file, tree) <= getEndPosition(file, tree)or
getStartPosition(file, tree) == NOPOSor
getEndPosition(file, tree) == NOPOS- Parameters:
file- CompilationUnit in which to find treetree- tree for which a position is sought- Returns:
- the end position of tree
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