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Add details to indentation stack 

This makes more advanced state handling easily possible.
Also moved isWrapIndent/isTempIndent into this, which allows
for exceptions for certain tokens and more control.
This commit is contained in:
WebFreak001 2019-01-11 00:47:50 +01:00
parent 6e4136a353
commit 053b775cd1
2 changed files with 78 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
src/dfmt/formatter.d
View File

@ -1240,8 +1240,13 @@ private:
break;
case tok!"]":
indents.popWrapIndents();
if (indents.topIs(tok!"]"))
newline();
if (indents.topIsTemp(tok!"]"))
{
if (!indents.topDetails.mini)
newline();
else
indents.pop();
}
writeToken();
if (currentIs(tok!"identifier"))
write(" ");
@ -1402,7 +1407,7 @@ private:
: tokens[i .. $].countUntil!(t => t.index == r.front) + i;
immutable size_t j = min(expressionEndIndex(i), ufcsBreakLocation);
// Use magical negative value for array literals and wrap indents
immutable inLvl = (indents.topIsWrap() || indents.topIs(tok!"]")) ? -indentLevel
immutable inLvl = (indents.topIsWrap() || indents.topIsTemp(tok!"]")) ? -indentLevel
: indentLevel;
linebreakHints = chooseLineBreakTokens(i, tokens[i .. j], depths[i .. j],
config, currentLineLength, inLvl);
@ -1528,7 +1533,7 @@ private:
else if (currentIs(tok!"]"))
{
indents.popWrapIndents();
if (indents.topIs(tok!"]"))
if (indents.topIsTemp(tok!"]"))
{
indents.pop();
indentLevel = indents.indentLevel;
@ -1671,13 +1676,21 @@ private:
void pushWrapIndent(IdType type = tok!"")
{
immutable t = type == tok!"" ? tokens[index].type : type;
IndentStack.Details detail;
detail.wrap = isWrapIndent(t);
detail.temp = isTempIndent(t);
pushWrapIndent(t, detail);
}
void pushWrapIndent(IdType type, IndentStack.Details detail)
{
if (parenDepth == 0)
{
if (indents.wrapIndents == 0)
indents.push(t);
indents.push(type, detail);
}
else if (indents.wrapIndents < 1)
indents.push(t);
indents.push(type, detail);
}
const pure @safe @nogc:

68
src/dfmt/indentation.d
View File

@ -7,6 +7,8 @@ module dfmt.indentation;
import dparse.lexer;
import std.bitmanip : bitfields;
/**
* Returns: true if the given token type is a wrap indent type
*/
@ -29,6 +31,20 @@ bool isTempIndent(IdType type) pure nothrow @nogc @safe
*/
struct IndentStack
{
static struct Details
{
mixin(bitfields!(
// generally true for all operators except {, case, @, ], (, )
bool, "wrap", 1,
// temporary indentation which get's reverted when a block starts
// generally true for all tokens except ), {, case, @
bool, "temp", 1,
// emit minimal newlines
bool, "mini", 1,
bool, "isAA", 1,
uint, "", 28));
}
/**
* Get the indent size at the most recent occurrence of the given indent type
*/
@ -55,7 +71,7 @@ struct IndentStack
int tempIndentCount = 0;
for (size_t i = index; i > 0; i--)
{
if (!isWrapIndent(arr[i - 1]) && arr[i - 1] != tok!"]")
if (!details[i - 1].wrap && arr[i - 1] != tok!"]")
break;
tempIndentCount++;
}
@ -66,8 +82,20 @@ struct IndentStack
* Pushes the given indent type on to the stack.
*/
void push(IdType item) pure nothrow
{
Details detail;
detail.wrap = isWrapIndent(item);
detail.temp = isTempIndent(item);
push(item, detail);
}
/**
* Pushes the given indent type on to the stack.
*/
void push(IdType item, Details detail) pure nothrow
{
arr[index] = item;
details[index] = detail;
//FIXME this is actually a bad thing to do,
//we should not just override when the stack is
//at it's limit
@ -91,7 +119,7 @@ struct IndentStack
*/
void popWrapIndents() pure nothrow @safe @nogc
{
while (index > 0 && isWrapIndent(arr[index - 1]))
while (index > 0 && details[index - 1].wrap)
index--;
}
@ -100,7 +128,7 @@ struct IndentStack
*/
void popTempIndents() pure nothrow @safe @nogc
{
while (index > 0 && isTempIndent(arr[index - 1]))
while (index > 0 && details[index - 1].temp)
index--;
}
@ -125,7 +153,15 @@ struct IndentStack
*/
bool topIsTemp()
{
return index > 0 && index <= arr.length && isTempIndent(arr[index - 1]);
return index > 0 && index <= arr.length && details[index - 1].temp;
}
/**
* Returns: `true` if the top of the indent stack is a temporary indent with the specified token
*/
bool topIsTemp(IdType item)
{
return index > 0 && index <= arr.length && arr[index - 1] == item && details[index - 1].temp;
}
/**
@ -133,7 +169,15 @@ struct IndentStack
*/
bool topIsWrap()
{
return index > 0 && index <= arr.length && isWrapIndent(arr[index - 1]);
return index > 0 && index <= arr.length && details[index - 1].wrap;
}
/**
* Returns: `true` if the top of the indent stack is a temporary indent with the specified token
*/
bool topIsWrap(IdType item)
{
return index > 0 && index <= arr.length && arr[index - 1] == item && details[index - 1].wrap;
}
/**
@ -156,6 +200,11 @@ struct IndentStack
return arr[index - 1];
}
Details topDetails() const pure nothrow @property @safe @nogc
{
return details[index - 1];
}
int indentLevel() const pure nothrow @property @safe @nogc
{
return indentSize();
@ -183,6 +232,7 @@ private:
size_t index;
IdType[256] arr;
Details[arr.length] details;
int indentSize(const size_t k = size_t.max) const pure nothrow @safe @nogc
{
@ -196,17 +246,17 @@ private:
{
immutable int pc = (arr[i] == tok!"!" || arr[i] == tok!"(" || arr[i] == tok!")") ? parenCount + 1
: parenCount;
if ((isWrapIndent(arr[i]) || arr[i] == tok!"(") && parenCount > 1)
if ((details[i].wrap || arr[i] == tok!"(") && parenCount > 1)
{
parenCount = pc;
continue;
}
if (i + 1 < index)
{
if (arr[i] == tok!"]")
if (arr[i] == tok!"]" && details[i].temp)
continue;
immutable currentIsNonWrapTemp = !isWrapIndent(arr[i])
&& isTempIndent(arr[i]) && arr[i] != tok!")" && arr[i] != tok!"!";
immutable currentIsNonWrapTemp = !details[i].wrap
&& details[i].temp && arr[i] != tok!")" && arr[i] != tok!"!";
if (arr[i] == tok!"static"
&& arr[i + 1].among!(tok!"if", tok!"else", tok!"foreach", tok!"foreach_reverse")
&& (i + 2 >= index || arr[i + 2] != tok!"{"))