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style: comment changes in the skeletons

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* data/skeletons/lalr1.cc: Prepare for Java's LAC.
* data/skeletons/lalr1.java: Style fixes.
This commit is contained in:
Akim Demaille
2020-11-01 15:32:24 +01:00
parent 57848d9262
commit 042b916c0e
4 changed files with 55 additions and 47 deletions
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68
data/skeletons/lalr1.java
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@@ -25,7 +25,10 @@ m4_define([b4_symbol_no_destructor_assert],
[%destructor does not make sense in Java])])])
b4_symbol_foreach([b4_symbol_no_destructor_assert])
# Setup some macros for api.push-pull.
## --------------- ##
## api.push-pull. ##
## --------------- ##
b4_percent_define_default([[api.push-pull]], [[pull]])
b4_percent_define_check_values([[[[api.push-pull]],
[[pull]], [[push]], [[both]]]])
@@ -52,7 +55,8 @@ b4_use_push_for_pull_if([
# Define a macro to encapsulate the parse state variables. This
# allows them to be defined either in parse() when doing pull parsing,
# or as class instance variable when doing push parsing.
m4_define([b4_define_state],[[
m4_define([b4_define_state],
[[
/* Lookahead token kind. */
int yychar = YYEMPTY_;
/* Lookahead symbol kind. */
@@ -76,6 +80,10 @@ m4_define([b4_define_state],[[
]b4_yystype[ yylval = null;
]])[
## ------------- ##
## Parser File. ##
## ------------- ##
]b4_output_begin([b4_parser_file_name])[
]b4_copyright([Skeleton implementation for Bison LALR(1) parsers in Java],
[2007-2015, 2018-2020])[
@@ -343,65 +351,63 @@ import java.text.MessageFormat;
public int size = 16;
public int height = -1;
public final void push (int state, ]b4_yystype[ value]b4_locations_if([, ]b4_location_type[ loc])[) {
public final void push(int state, ]b4_yystype[ value]b4_locations_if([, ]b4_location_type[ loc])[) {
height++;
if (size == height)
{
int[] newStateStack = new int[size * 2];
System.arraycopy (stateStack, 0, newStateStack, 0, height);
stateStack = newStateStack;]b4_locations_if([[
]b4_location_type[[] newLocStack = new ]b4_location_type[[size * 2];
System.arraycopy (locStack, 0, newLocStack, 0, height);
locStack = newLocStack;]])
if (size == height) {
int[] newStateStack = new int[size * 2];
System.arraycopy(stateStack, 0, newStateStack, 0, height);
stateStack = newStateStack;]b4_locations_if([[
]b4_location_type[[] newLocStack = new ]b4_location_type[[size * 2];
System.arraycopy(locStack, 0, newLocStack, 0, height);
locStack = newLocStack;]])
b4_yystype[[] newValueStack = new ]b4_yystype[[size * 2];
System.arraycopy (valueStack, 0, newValueStack, 0, height);
valueStack = newValueStack;
b4_yystype[[] newValueStack = new ]b4_yystype[[size * 2];
System.arraycopy(valueStack, 0, newValueStack, 0, height);
valueStack = newValueStack;
size *= 2;
}
size *= 2;
}
stateStack[height] = state;]b4_locations_if([[
locStack[height] = loc;]])[
valueStack[height] = value;
}
public final void pop () {
pop (1);
public final void pop() {
pop(1);
}
public final void pop (int num) {
public final void pop(int num) {
// Avoid memory leaks... garbage collection is a white lie!
if (0 < num) {
java.util.Arrays.fill (valueStack, height - num + 1, height + 1, null);]b4_locations_if([[
java.util.Arrays.fill (locStack, height - num + 1, height + 1, null);]])[
java.util.Arrays.fill(valueStack, height - num + 1, height + 1, null);]b4_locations_if([[
java.util.Arrays.fill(locStack, height - num + 1, height + 1, null);]])[
}
height -= num;
}
public final int stateAt (int i) {
public final int stateAt(int i) {
return stateStack[height - i];
}
]b4_locations_if([[
public final ]b4_location_type[ locationAt (int i) {
public final ]b4_location_type[ locationAt(int i) {
return locStack[height - i];
}
]])[
public final ]b4_yystype[ valueAt (int i) {
public final ]b4_yystype[ valueAt(int i) {
return valueStack[height - i];
}
// Print the state stack on the debug stream.
public void print (java.io.PrintStream out) {
public void print(java.io.PrintStream out) {
out.print ("Stack now");
for (int i = 0; i <= height; i++)
{
out.print (' ');
out.print (stateStack[i]);
}
out.println ();
for (int i = 0; i <= height; i++) {
out.print(' ');
out.print(stateStack[i]);
}
out.println();
}
}