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d: examples: reduce scopes

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* data/skeletons/lalr1.d (YYLocation.step): New.
* examples/d/calc/calc.y (Lexer): Reduce scopes to avoid uninitialized
varibles.
Factor the handling of locations.
We don't need lenChars.
This commit is contained in:
Akim Demaille
2021-01-17 08:17:50 +01:00
parent 5aaa93ae72
commit fb144c021c
2 changed files with 18 additions and 13 deletions
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16
data/skeletons/lalr1.d
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@@ -164,7 +164,8 @@ public struct ]b4_location_type[
* Create a <code>Location</code> denoting an empty range located at
* a given point.
* @@param loc The position at which the range is anchored. */
public this (Position loc) {
public this(Position loc)
{
this.begin = this.end = loc;
}
@@ -172,16 +173,25 @@ public struct ]b4_location_type[
* Create a <code>Location</code> from the endpoints of the range.
* @@param begin The first position included in the range.
* @@param end The first position beyond the range. */
public this (Position begin, Position end)
public this(Position begin, Position end)
{
this.begin = begin;
this.end = end;
}
/**
* Reset initial location to final location.
*/
public void step()
{
this.begin = this.end;
}
/**
* A representation of the location.
*/
public string toString () const {
public string toString() const
{
auto end_col = 0 < end.column ? end.column - 1 : 0;
auto res = begin.toString ();
if (end.filename && begin.filename != end.filename)