diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/compiler/scala/tools/nsc/ast/parser/Parsers.scala | 33 | ||||
-rw-r--r-- | src/compiler/scala/tools/nsc/ast/parser/TreeBuilder.scala | 20 |
2 files changed, 14 insertions, 39 deletions
diff --git a/src/compiler/scala/tools/nsc/ast/parser/Parsers.scala b/src/compiler/scala/tools/nsc/ast/parser/Parsers.scala index cd64c49b47..ccebcfa54d 100644 --- a/src/compiler/scala/tools/nsc/ast/parser/Parsers.scala +++ b/src/compiler/scala/tools/nsc/ast/parser/Parsers.scala @@ -126,7 +126,7 @@ self => val global: Global import global._ - case class OpInfo(operand: Tree, operator: Name, targs: List[Tree], offset: Offset) + case class OpInfo(operand: Tree, operator: Name, offset: Offset) class SourceFileParser(val source: SourceFile) extends Parser { @@ -789,7 +789,7 @@ self => val rPos = top.pos val end = if (rPos.isDefined) rPos.endOrPoint else opPos.endOrPoint top = atPos(start, opinfo.offset, end) { - makeBinop(isExpr, opinfo.operand, opinfo.operator, top, opPos, opinfo.targs) + makeBinop(isExpr, opinfo.operand, opinfo.operator, top, opPos) } } top @@ -1440,17 +1440,6 @@ self => } } - def advanceStack(base: List[OpInfo], top: Tree): Tree = { - val newTop = reduceStack(true, base, top, precedence(in.name), treeInfo.isLeftAssoc(in.name)) - val op = in.name - val pos = in.offset - ident() - val targs = if (in.token == LBRACKET) exprTypeArgs() else Nil - opstack ::= OpInfo(newTop, op, targs, pos) - - newTop - } - /** {{{ * PostfixExpr ::= InfixExpr [Id [nl]] * InfixExpr ::= PrefixExpr @@ -1462,21 +1451,22 @@ self => var top = prefixExpr() while (isIdent) { - top = advanceStack(base, top) + top = reduceStack(true, base, top, precedence(in.name), treeInfo.isLeftAssoc(in.name)) + val op = in.name + opstack = OpInfo(top, op, in.offset) :: opstack + ident() newLineOptWhenFollowing(isExprIntroToken) - if (isExprIntro) { val next = prefixExpr() if (next == EmptyTree) return reduceStack(true, base, top, 0, true) top = next - } - else { + } else { val topinfo = opstack.head opstack = opstack.tail val od = stripParens(reduceStack(true, base, topinfo.operand, 0, true)) return atPos(od.pos.startOrPoint, topinfo.offset) { - applyTypeArgs(Select(od, topinfo.operator.encode), topinfo.targs) + Select(od, topinfo.operator.encode) } } } @@ -1816,7 +1806,7 @@ self => top = reduceStack( false, base, top, precedence(in.name), treeInfo.isLeftAssoc(in.name)) val op = in.name - opstack = OpInfo(top, op, Nil, in.offset) :: opstack + opstack = OpInfo(top, op, in.offset) :: opstack ident() top = simplePattern() } @@ -1906,11 +1896,6 @@ self => def exprTypeArgs() = outPattern.typeArgs() def exprSimpleType() = outPattern.simpleType() - def applyTypeArgs(sel: Tree, targs: List[Tree]): Tree = ( - if (targs.isEmpty) sel - else atPos(sel.pos)(TypeApply(sel, targs)) - ) - /** Default entry points into some pattern contexts. */ def pattern(): Tree = noSeq.pattern() def patterns(): List[Tree] = noSeq.patterns() diff --git a/src/compiler/scala/tools/nsc/ast/parser/TreeBuilder.scala b/src/compiler/scala/tools/nsc/ast/parser/TreeBuilder.scala index 4b7c03b72a..0d2fbc5372 100644 --- a/src/compiler/scala/tools/nsc/ast/parser/TreeBuilder.scala +++ b/src/compiler/scala/tools/nsc/ast/parser/TreeBuilder.scala @@ -174,14 +174,7 @@ abstract class TreeBuilder { } /** Create tree representing (unencoded) binary operation expression or pattern. */ - def makeBinop(isExpr: Boolean, left: Tree, op: TermName, right: Tree, opPos: Position, targs: List[Tree] = Nil): Tree = { - require(isExpr || targs.isEmpty, ((left, op, targs, right))) - - def mkSel(t: Tree) = { - val sel = atPos(opPos union t.pos)(Select(stripParens(t), op.encode)) - if (targs.isEmpty) sel else atPos(left.pos)(TypeApply(sel, targs)) - } - + def makeBinop(isExpr: Boolean, left: Tree, op: TermName, right: Tree, opPos: Position): Tree = { def mkNamed(args: List[Tree]) = if (isExpr) args map { case a @ Assign(id @ Ident(name), rhs) => @@ -194,17 +187,14 @@ abstract class TreeBuilder { } if (isExpr) { if (treeInfo.isLeftAssoc(op)) { - Apply(mkSel(left), arguments) - } - else { + Apply(atPos(opPos union left.pos) { Select(stripParens(left), op.encode) }, arguments) + } else { val x = freshTermName() Block( List(ValDef(Modifiers(SYNTHETIC), x, TypeTree(), stripParens(left))), - Apply(mkSel(right), List(Ident(x))) - ) + Apply(atPos(opPos union right.pos) { Select(stripParens(right), op.encode) }, List(Ident(x)))) } - } - else { + } else { Apply(Ident(op.encode), stripParens(left) :: arguments) } } |