java-defects4j-closure-110-scopedaliases

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A painting is a person's account of this edit as text, recorded independently of the node mapping - a rendering often has several equally defensible answers where the mapping has one. Deletions and insertions carry no position on the opposite side in a painting, so that panel draws no caret for them.

Before…lines 1–351 unchanged (351 lines)
  private void findAliases(NodeTraversal t) {
    Scope scope = t.getScope();
    for (Var v : scope.getVarIterable()) {
      Node n = v.getNode();
      Node parent = n.getParent();
      boolean isVar = parent.isVar();
      if (isVar && n.getFirstChild() != null && n.getFirstChild().isQualifiedName()) {
        recordAlias(v);
      } else if (v.isBleedingFunction()) {
        // Bleeding functions already get a BAD_PARAMETERS error, so just
        // do nothing.
      } else if (parent.getType() == Token.LP) {
        // Parameters of the scope function also get a BAD_PARAMETERS
        // error.
      } else if (isVar) {
        Node grandparent = parent.getParent();
        Node value = n.hasChildren() ?
            v.getInitialValue().detachFromParent() :
            null;
        Node varNode = parent;
372
        String name = n.getString();
        int nameCount = scopedAliasNames.count(name);
        scopedAliasNames.add(name);
        String globalName =
            "$jscomp.scope." + name + (nameCount == 0 ? "" : ("$" + nameCount));
378
        compiler.ensureLibraryInjected("base");
380
        // First, we need to free up the function expression (EXPR)
        // to be used in another expression.
          // Replace "function NAME() { ... }" with "var NAME;".
384
          // We can't keep the local name on the function expression,
          // because IE is buggy and will leak the name into the global
          // scope. This is covered in more detail here:
          // http://wiki.ecmascript.org/lib/exe/fetch.php?id=resources:resources&cache=cache&media=resources:jscriptdeviationsfromes3.pdf
          //
          // This will only cause problems if this is a hoisted, recursive
          // function, and the programmer is using the hoisting.
392
            // If this is a VAR, we can just detach the expression and
            // the tree will still be valid.
395
        // Add $jscomp.scope.name = EXPR;
        // Make sure we copy over all the jsdoc and debug info.
        if (value != null || v.getJSDocInfo() != null) {
          Node newDecl = NodeUtil.newQualifiedNameNodeDeclaration(
              compiler.getCodingConvention(),
              globalName,
              value,
              v.getJSDocInfo())
              .useSourceInfoIfMissingFromForTree(n);
          NodeUtil.setDebugInformation(
              newDecl.getFirstChild().getFirstChild(), n, name);
407
            grandparent.addChildBefore(newDecl, varNode);
        }
410
        // Rewrite "var name = EXPR;" to "var name = $jscomp.scope.name;"
        v.getNameNode().addChildToFront(
            NodeUtil.newQualifiedNameNode(
                compiler.getCodingConvention(), globalName, n, name));
415
…lines 416–587 unchanged (172 lines)

After…lines 1–351 unchanged (351 lines)
  private void findAliases(NodeTraversal t) {
    Scope scope = t.getScope();
    for (Var v : scope.getVarIterable()) {
      Node n = v.getNode();
      Node parent = n.getParent();
      boolean isVar = parent.isVar();
      boolean isFunctionDecl = NodeUtil.isFunctionDeclaration(parent);
      if (isVar && n.getFirstChild() != null && n.getFirstChild().isQualifiedName()) {
        recordAlias(v);
      } else if (v.isBleedingFunction()) {
        // Bleeding functions already get a BAD_PARAMETERS error, so just
        // do nothing.
      } else if (parent.getType() == Token.LP) {
        // Parameters of the scope function also get a BAD_PARAMETERS
        // error.
      } else if (isVar || isFunctionDecl) {
        boolean isHoisted = NodeUtil.isHoistedFunctionDeclaration(parent);
        Node grandparent = parent.getParent();
        Node value = v.getInitialValue() != null ?
            v.getInitialValue() :
            null;
        Node varNode = null;
374
        String name = n.getString();
        int nameCount = scopedAliasNames.count(name);
        scopedAliasNames.add(name);
        String globalName =
            "$jscomp.scope." + name + (nameCount == 0 ? "" : ("$" + nameCount));
380
        compiler.ensureLibraryInjected("base");
382
        // First, we need to free up the function expression (EXPR)
        // to be used in another expression.
        if (isFunctionDecl) {
          // Replace "function NAME() { ... }" with "var NAME;".
          Node existingName = v.getNameNode();
388
          // We can't keep the local name on the function expression,
          // because IE is buggy and will leak the name into the global
          // scope. This is covered in more detail here:
          // http://wiki.ecmascript.org/lib/exe/fetch.php?id=resources:resources&cache=cache&media=resources:jscriptdeviationsfromes3.pdf
          //
          // This will only cause problems if this is a hoisted, recursive
          // function, and the programmer is using the hoisting.
          Node newName = IR.name("").useSourceInfoFrom(existingName);
          value.replaceChild(existingName, newName);
398
          varNode = IR.var(existingName).useSourceInfoFrom(existingName);
          grandparent.replaceChild(parent, varNode);
        } else {
          if (value != null) {
            // If this is a VAR, we can just detach the expression and
            // the tree will still be valid.
            value.detachFromParent();
          }
          varNode = parent;
        }
409
        // Add $jscomp.scope.name = EXPR;
        // Make sure we copy over all the jsdoc and debug info.
        if (value != null || v.getJSDocInfo() != null) {
          Node newDecl = NodeUtil.newQualifiedNameNodeDeclaration(
              compiler.getCodingConvention(),
              globalName,
              value,
              v.getJSDocInfo())
              .useSourceInfoIfMissingFromForTree(n);
          NodeUtil.setDebugInformation(
              newDecl.getFirstChild().getFirstChild(), n, name);
421
          if (isHoisted) {
            grandparent.addChildToFront(newDecl);
          } else {
            grandparent.addChildBefore(newDecl, varNode);
          }
        }
428
        // Rewrite "var name = EXPR;" to "var name = $jscomp.scope.name;"
        v.getNameNode().addChildToFront(
            NodeUtil.newQualifiedNameNode(
                compiler.getCodingConvention(), globalName, n, name));
…lines 433–605 unchanged (173 lines)

Before…lines 1–351 unchanged (351 lines)
  private void findAliases(NodeTraversal t) {
    Scope scope = t.getScope();
    for (Var v : scope.getVarIterable()) {
      Node n = v.getNode();
      Node parent = n.getParent();
      boolean isVar = parent.isVar();
      if (isVar && n.getFirstChild() != null && n.getFirstChild().isQualifiedName()) {
        recordAlias(v);
      } else if (v.isBleedingFunction()) {
        // Bleeding functions already get a BAD_PARAMETERS error, so just
        // do nothing.
      } else if (parent.getType() == Token.LP) {
        // Parameters of the scope function also get a BAD_PARAMETERS
        // error.
      } else if (isVar) {
        Node grandparent = parent.getParent();
        Node value = n.hasChildren() ?
            v.getInitialValue().detachFromParent() :
            null;
        Node varNode = parent;
372
        String name = n.getString();
        int nameCount = scopedAliasNames.count(name);
        scopedAliasNames.add(name);
        String globalName =
            "$jscomp.scope." + name + (nameCount == 0 ? "" : ("$" + nameCount));
378
        compiler.ensureLibraryInjected("base");
380
        // First, we need to free up the function expression (EXPR)
        // to be used in another expression.
          // Replace "function NAME() { ... }" with "var NAME;".
384
          // We can't keep the local name on the function expression,
          // because IE is buggy and will leak the name into the global
          // scope. This is covered in more detail here:
          // http://wiki.ecmascript.org/lib/exe/fetch.php?id=resources:resources&cache=cache&media=resources:jscriptdeviationsfromes3.pdf
          //
          // This will only cause problems if this is a hoisted, recursive
          // function, and the programmer is using the hoisting.
392
            // If this is a VAR, we can just detach the expression and
            // the tree will still be valid.
395
        // Add $jscomp.scope.name = EXPR;
        // Make sure we copy over all the jsdoc and debug info.
        if (value != null || v.getJSDocInfo() != null) {
          Node newDecl = NodeUtil.newQualifiedNameNodeDeclaration(
              compiler.getCodingConvention(),
              globalName,
              value,
              v.getJSDocInfo())
              .useSourceInfoIfMissingFromForTree(n);
          NodeUtil.setDebugInformation(
              newDecl.getFirstChild().getFirstChild(), n, name);
407
            grandparent.addChildBefore(newDecl, varNode);
        }
410
        // Rewrite "var name = EXPR;" to "var name = $jscomp.scope.name;"
        v.getNameNode().addChildToFront(
            NodeUtil.newQualifiedNameNode(
                compiler.getCodingConvention(), globalName, n, name));
415
…lines 416–587 unchanged (172 lines)

After…lines 1–351 unchanged (351 lines)
  private void findAliases(NodeTraversal t) {
    Scope scope = t.getScope();
    for (Var v : scope.getVarIterable()) {
      Node n = v.getNode();
      Node parent = n.getParent();
      boolean isVar = parent.isVar();
      boolean isFunctionDecl = NodeUtil.isFunctionDeclaration(parent);
      if (isVar && n.getFirstChild() != null && n.getFirstChild().isQualifiedName()) {
        recordAlias(v);
      } else if (v.isBleedingFunction()) {
        // Bleeding functions already get a BAD_PARAMETERS error, so just
        // do nothing.
      } else if (parent.getType() == Token.LP) {
        // Parameters of the scope function also get a BAD_PARAMETERS
        // error.
      } else if (isVar || isFunctionDecl) {
        boolean isHoisted = NodeUtil.isHoistedFunctionDeclaration(parent);
        Node grandparent = parent.getParent();
        Node value = v.getInitialValue() != null ?
            v.getInitialValue() :
            null;
        Node varNode = null;
374
        String name = n.getString();
        int nameCount = scopedAliasNames.count(name);
        scopedAliasNames.add(name);
        String globalName =
            "$jscomp.scope." + name + (nameCount == 0 ? "" : ("$" + nameCount));
380
        compiler.ensureLibraryInjected("base");
382
        // First, we need to free up the function expression (EXPR)
        // to be used in another expression.
        if (isFunctionDecl) {
          // Replace "function NAME() { ... }" with "var NAME;".
          Node existingName = v.getNameNode();
388
          // We can't keep the local name on the function expression,
          // because IE is buggy and will leak the name into the global
          // scope. This is covered in more detail here:
          // http://wiki.ecmascript.org/lib/exe/fetch.php?id=resources:resources&cache=cache&media=resources:jscriptdeviationsfromes3.pdf
          //
          // This will only cause problems if this is a hoisted, recursive
          // function, and the programmer is using the hoisting.
          Node newName = IR.name("").useSourceInfoFrom(existingName);
          value.replaceChild(existingName, newName);
398
          varNode = IR.var(existingName).useSourceInfoFrom(existingName);
          grandparent.replaceChild(parent, varNode);
        } else {
          if (value != null) {
            // If this is a VAR, we can just detach the expression and
            // the tree will still be valid.
            value.detachFromParent();
          }
          varNode = parent;
        }
409
        // Add $jscomp.scope.name = EXPR;
        // Make sure we copy over all the jsdoc and debug info.
        if (value != null || v.getJSDocInfo() != null) {
          Node newDecl = NodeUtil.newQualifiedNameNodeDeclaration(
              compiler.getCodingConvention(),
              globalName,
              value,
              v.getJSDocInfo())
              .useSourceInfoIfMissingFromForTree(n);
          NodeUtil.setDebugInformation(
              newDecl.getFirstChild().getFirstChild(), n, name);
421
          if (isHoisted) {
            grandparent.addChildToFront(newDecl);
          } else {
            grandparent.addChildBefore(newDecl, varNode);
          }
        }
428
        // Rewrite "var name = EXPR;" to "var name = $jscomp.scope.name;"
        v.getNameNode().addChildToFront(
            NodeUtil.newQualifiedNameNode(
                compiler.getCodingConvention(), globalName, n, name));
…lines 433–605 unchanged (173 lines)

Before…lines 1–351 unchanged (351 lines)
  private void findAliases(NodeTraversal t) {
    Scope scope = t.getScope();
    for (Var v : scope.getVarIterable()) {
      Node n = v.getNode();
      Node parent = n.getParent();
      boolean isVar = parent.isVar();
      if (isVar && n.getFirstChild() != null && n.getFirstChild().isQualifiedName()) {
        recordAlias(v);
      } else if (v.isBleedingFunction()) {
        // Bleeding functions already get a BAD_PARAMETERS error, so just
        // do nothing.
      } else if (parent.getType() == Token.LP) {
        // Parameters of the scope function also get a BAD_PARAMETERS
        // error.
      } else if (isVar) {
        Node grandparent = parent.getParent();
        Node value = n.hasChildren() ?
            v.getInitialValue().detachFromParent() :
            null;
        Node varNode = parent;
372
        String name = n.getString();
        int nameCount = scopedAliasNames.count(name);
        scopedAliasNames.add(name);
        String globalName =
            "$jscomp.scope." + name + (nameCount == 0 ? "" : ("$" + nameCount));
378
        compiler.ensureLibraryInjected("base");
380
        // First, we need to free up the function expression (EXPR)
        // to be used in another expression.
          // Replace "function NAME() { ... }" with "var NAME;".
384
          // We can't keep the local name on the function expression,
          // because IE is buggy and will leak the name into the global
          // scope. This is covered in more detail here:
          // http://wiki.ecmascript.org/lib/exe/fetch.php?id=resources:resources&cache=cache&media=resources:jscriptdeviationsfromes3.pdf
          //
          // This will only cause problems if this is a hoisted, recursive
          // function, and the programmer is using the hoisting.
392
            // If this is a VAR, we can just detach the expression and
            // the tree will still be valid.
395
        // Add $jscomp.scope.name = EXPR;
        // Make sure we copy over all the jsdoc and debug info.
        if (value != null || v.getJSDocInfo() != null) {
          Node newDecl = NodeUtil.newQualifiedNameNodeDeclaration(
              compiler.getCodingConvention(),
              globalName,
              value,
              v.getJSDocInfo())
              .useSourceInfoIfMissingFromForTree(n);
          NodeUtil.setDebugInformation(
              newDecl.getFirstChild().getFirstChild(), n, name);
407
            grandparent.addChildBefore(newDecl, varNode);
        }
410
        // Rewrite "var name = EXPR;" to "var name = $jscomp.scope.name;"
        v.getNameNode().addChildToFront(
            NodeUtil.newQualifiedNameNode(
                compiler.getCodingConvention(), globalName, n, name));
415
…lines 416–587 unchanged (172 lines)

After…lines 1–351 unchanged (351 lines)
  private void findAliases(NodeTraversal t) {
    Scope scope = t.getScope();
    for (Var v : scope.getVarIterable()) {
      Node n = v.getNode();
      Node parent = n.getParent();
      boolean isVar = parent.isVar();
      boolean isFunctionDecl = NodeUtil.isFunctionDeclaration(parent);
      if (isVar && n.getFirstChild() != null && n.getFirstChild().isQualifiedName()) {
        recordAlias(v);
      } else if (v.isBleedingFunction()) {
        // Bleeding functions already get a BAD_PARAMETERS error, so just
        // do nothing.
      } else if (parent.getType() == Token.LP) {
        // Parameters of the scope function also get a BAD_PARAMETERS
        // error.
      } else if (isVar || isFunctionDecl) {
        boolean isHoisted = NodeUtil.isHoistedFunctionDeclaration(parent);
        Node grandparent = parent.getParent();
        Node value = v.getInitialValue() != null ?
            v.getInitialValue() :
            null;
        Node varNode = null;
374
        String name = n.getString();
        int nameCount = scopedAliasNames.count(name);
        scopedAliasNames.add(name);
        String globalName =
            "$jscomp.scope." + name + (nameCount == 0 ? "" : ("$" + nameCount));
380
        compiler.ensureLibraryInjected("base");
382
        // First, we need to free up the function expression (EXPR)
        // to be used in another expression.
        if (isFunctionDecl) {
          // Replace "function NAME() { ... }" with "var NAME;".
          Node existingName = v.getNameNode();
388
          // We can't keep the local name on the function expression,
          // because IE is buggy and will leak the name into the global
          // scope. This is covered in more detail here:
          // http://wiki.ecmascript.org/lib/exe/fetch.php?id=resources:resources&cache=cache&media=resources:jscriptdeviationsfromes3.pdf
          //
          // This will only cause problems if this is a hoisted, recursive
          // function, and the programmer is using the hoisting.
          Node newName = IR.name("").useSourceInfoFrom(existingName);
          value.replaceChild(existingName, newName);
398
          varNode = IR.var(existingName).useSourceInfoFrom(existingName);
          grandparent.replaceChild(parent, varNode);
        } else {
          if (value != null) {
            // If this is a VAR, we can just detach the expression and
            // the tree will still be valid.
            value.detachFromParent();
          }
          varNode = parent;
        }
409
        // Add $jscomp.scope.name = EXPR;
        // Make sure we copy over all the jsdoc and debug info.
        if (value != null || v.getJSDocInfo() != null) {
          Node newDecl = NodeUtil.newQualifiedNameNodeDeclaration(
              compiler.getCodingConvention(),
              globalName,
              value,
              v.getJSDocInfo())
              .useSourceInfoIfMissingFromForTree(n);
          NodeUtil.setDebugInformation(
              newDecl.getFirstChild().getFirstChild(), n, name);
421
          if (isHoisted) {
            grandparent.addChildToFront(newDecl);
          } else {
            grandparent.addChildBefore(newDecl, varNode);
          }
        }
428
        // Rewrite "var name = EXPR;" to "var name = $jscomp.scope.name;"
        v.getNameNode().addChildToFront(
            NodeUtil.newQualifiedNameNode(
                compiler.getCodingConvention(), globalName, n, name));
…lines 433–605 unchanged (173 lines)

Before

program

package_declaration

package "package"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "javascript"

. "."

identifier "jscomp"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "common"

. "."

identifier "base"

. "."

identifier "Preconditions"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "common"

. "."

identifier "collect"

. "."

identifier "HashMultiset"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "common"

. "."

identifier "collect"

. "."

identifier "Lists"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "common"

. "."

identifier "collect"

. "."

identifier "Maps"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "common"

. "."

identifier "collect"

. "."

identifier "Multiset"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "common"

. "."

identifier "collect"

. "."

identifier "Sets"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "javascript"

. "."

identifier "jscomp"

. "."

identifier "CompilerOptions"

. "."

identifier "AliasTransformation"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "javascript"

. "."

identifier "jscomp"

. "."

identifier "CompilerOptions"

. "."

identifier "AliasTransformationHandler"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "javascript"

. "."

identifier "jscomp"

. "."

identifier "Scope"

. "."

identifier "Var"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "javascript"

. "."

identifier "rhino"

. "."

identifier "IR"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "javascript"

. "."

identifier "rhino"

. "."

identifier "JSDocInfo"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "javascript"

. "."

identifier "rhino"

. "."

identifier "Node"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "javascript"

. "."

identifier "rhino"

. "."

identifier "SourcePosition"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "javascript"

. "."

identifier "rhino"

. "."

identifier "Token"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "java"

. "."

identifier "util"

. "."

identifier "Collection"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "java"

. "."

identifier "util"

. "."

identifier "List"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "java"

. "."

identifier "util"

. "."

identifier "Map"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "java"

. "."

identifier "util"

. "."

identifier "Set"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "javax"

. "."

identifier "annotation"

. "."

identifier "Nullable"

; ";"

block_comment "/**\n * Process aliases in goog.scope blocks.\n *\n * goog.scop"...

class_declaration

class "class"

identifier "ScopedAliases"

super_interfaces

implements "implements"

type_list

type_identifier "HotSwapCompilerPass"

class_body

{ "{"

block_comment "/** Name used to denote an scoped function block used for al"...

field_declaration

modifiers

static "static"

final "final"

type_identifier "String"

variable_declarator

identifier "SCOPING_METHOD_NAME"

= "="

string_literal

" "\""

string_fragment "goog.scope"

" "\""

; ";"

field_declaration

modifiers

private "private"

final "final"

type_identifier "AbstractCompiler"

variable_declarator

identifier "compiler"

; ";"

field_declaration

modifiers

private "private"

final "final"

type_identifier "PreprocessorSymbolTable"

variable_declarator

identifier "preprocessorSymbolTable"

; ";"

field_declaration

modifiers

private "private"

final "final"

type_identifier "AliasTransformationHandler"

variable_declarator

identifier "transformationHandler"

; ";"

line_comment "// Errors"

field_declaration (+25 nodes collapsed)

field_declaration (+31 nodes collapsed)

field_declaration (+25 nodes collapsed)

field_declaration

modifiers

private "private"

generic_type

type_identifier "Multiset"

type_arguments

< "<"

type_identifier "String"

> ">"

variable_declarator

identifier "scopedAliasNames"

= "="

method_invocation

identifier "HashMultiset"

. "."

identifier "create"

argument_list

( "("

) ")"

; ";"

constructor_declaration (+50 nodes collapsed)

method_declaration (+31 nodes collapsed)

method_declaration (+500 nodes collapsed)

class_declaration (+138 nodes collapsed)

class_declaration (+86 nodes collapsed)

class_declaration (+144 nodes collapsed)

class_declaration

modifiers

private "private"

class "class"

identifier "Traversal"

super_interfaces

implements "implements"

type_list

scoped_type_identifier

type_identifier "NodeTraversal"

. "."

type_identifier "ScopedCallback"

class_body

{ "{"

line_comment "// The job of this class is to collect these three data sets"...

line_comment "// The order of this list determines the order that aliases "...

field_declaration (+21 nodes collapsed)

line_comment "// This map is temporary and cleared for each scope."

field_declaration (+23 nodes collapsed)

line_comment "// Suppose you create an alias."

line_comment "// var x = goog.x;"

line_comment "// As a side-effect, this means you can shadow the namespace"...

line_comment "// in inner scopes. When we inline the namespaces, we have t"...

line_comment "// these shadows."

line_comment "//"

line_comment "// Fortunately, we already have a name uniquifier that runs "...

line_comment "// normalization (before optimizations). We run it here on a"...

line_comment "// set of variables, but only as a last resort (because this"...

line_comment "// up warning messages downstream)."

field_declaration (+25 nodes collapsed)

field_declaration

modifiers

private "private"

boolean_type "boolean"

variable_declarator

identifier "hasNamespaceShadows"

= "="

false "false"

; ";"

field_declaration

modifiers

private "private"

boolean_type "boolean"

variable_declarator

identifier "hasErrors"

= "="

false "false"

; ";"

field_declaration

modifiers

private "private"

type_identifier "AliasTransformation"

variable_declarator

identifier "transformation"

= "="

null_literal "null"

; ";"

method_declaration

generic_type

type_identifier "Collection"

type_arguments

< "<"

type_identifier "Node"

> ">"

identifier "getAliasDefinitionsInOrder"

formal_parameters

( "("

) ")"

block

{ "{"

return_statement

return "return"

identifier "aliasDefinitionsInOrder"

; ";"

} "}"

method_declaration

modifiers

private "private"

generic_type

type_identifier "List"

type_arguments

< "<"

type_identifier "AliasUsage"

> ">"

identifier "getAliasUsages"

formal_parameters

( "("

) ")"

block

{ "{"

return_statement

return "return"

identifier "aliasUsages"

; ";"

} "}"

method_declaration

generic_type

type_identifier "List"

type_arguments

< "<"

type_identifier "Node"

> ">"

identifier "getScopeCalls"

formal_parameters

( "("

) ")"

block

{ "{"

return_statement

return "return"

identifier "scopeCalls"

; ";"

} "}"

method_declaration

boolean_type "boolean"

identifier "hasErrors"

formal_parameters

( "("

) ")"

block

{ "{"

return_statement

return "return"

identifier "hasErrors"

; ";"

} "}"

method_declaration (+46 nodes collapsed)

method_declaration (+90 nodes collapsed)

method_declaration (+99 nodes collapsed)

method_declaration (+81 nodes collapsed)

method_declaration (+186 nodes collapsed)

method_declaration (+55 nodes collapsed)

method_declaration

modifiers

private "private"

void_type "void"

identifier "findAliases"

formal_parameters

( "("

formal_parameter

type_identifier "NodeTraversal"

identifier "t"

) ")"

block

{ "{"

local_variable_declaration

type_identifier "Scope"

variable_declarator

identifier "scope"

= "="

method_invocation

identifier "t"

. "."

identifier "getScope"

argument_list

( "("

) ")"

; ";"

enhanced_for_statement

for "for"

( "("

type_identifier "Var"

identifier "v"

: ":"

method_invocation

identifier "scope"

. "."

identifier "getVarIterable"

argument_list

( "("

) ")"

block

{ "{"

local_variable_declaration

type_identifier "Node"

variable_declarator

identifier "n"

= "="

method_invocation

identifier "v"

. "."

identifier "getNode"

argument_list

( "("

) ")"

; ";"

local_variable_declaration

type_identifier "Node"

variable_declarator

identifier "parent"

= "="

method_invocation

identifier "n"

. "."

identifier "getParent"

argument_list

( "("

) ")"

; ";"

local_variable_declaration

boolean_type "boolean"

variable_declarator

identifier "isVar"

= "="

method_invocation

identifier "parent"

. "."

identifier "isVar"

argument_list

( "("

) ")"

; ";"

if_statement

if "if"

parenthesized_expression (+31 nodes collapsed)

block

{ "{"

expression_statement

method_invocation

identifier "recordAlias"

argument_list

( "("

identifier "v"

) ")"

; ";"

} "}"

else "else"

if_statement

if "if"

parenthesized_expression

( "("

method_invocation

identifier "v"

. "."

identifier "isBleedingFunction"

argument_list

( "("

) ")"

block

{ "{"

line_comment "// Bleeding functions already get a BAD_PARAMETERS error, so"...

line_comment "// do nothing."

} "}"

else "else"

if_statement

if "if"

parenthesized_expression

( "("

binary_expression

method_invocation

identifier "parent"

. "."

identifier "getType"

argument_list

( "("

) ")"

== "=="

field_access

identifier "Token"

. "."

identifier "LP"

) ")"

block

{ "{"

line_comment "// Parameters of the scope function also get a BAD_PARAMETER"...

line_comment "// error."

} "}"

else "else"

if_statement

if "if"

parenthesized_expression

( "("

identifier "isVar"

) ")"

block

{ "{"

local_variable_declaration

type_identifier "Node"

variable_declarator

identifier "grandparent"

= "="

method_invocation

identifier "parent"

. "."

identifier "getParent"

argument_list

( "("

) ")"

; ";"

local_variable_declaration

type_identifier "Node"

variable_declarator

identifier "value"

= "="

ternary_expression

method_invocation

identifier "n"

. "."

identifier "hasChildren"

argument_list

( "("

) ")"

? "?"

method_invocation

method_invocation all 1:2

identifier "v" all 1:2

. "." all 1:2

identifier "getInitialValue" all 1:2

argument_list all 1:2

( "(" all 1:2

) ")" all 1:2

. "."

identifier "detachFromParent"

argument_list

( "("

) ")"

: ":"

null_literal "null"

; ";"

local_variable_declaration

type_identifier "Node"

variable_declarator

identifier "varNode"

= "="

identifier "parent"

; ";"

local_variable_declaration

type_identifier "String"

variable_declarator

identifier "name"

= "="

method_invocation

identifier "n"

. "."

identifier "getString"

argument_list

( "("

) ")"

; ";"

local_variable_declaration

integral_type

int "int"

variable_declarator

identifier "nameCount"

= "="

method_invocation

identifier "scopedAliasNames"

. "."

identifier "count"

argument_list

( "("

identifier "name"

) ")"

; ";"

expression_statement

method_invocation

identifier "scopedAliasNames"

. "."

identifier "add"

argument_list

( "("

identifier "name"

) ")"

; ";"

local_variable_declaration (+38 nodes collapsed)

expression_statement

method_invocation

identifier "compiler"

. "."

identifier "ensureLibraryInjected"

argument_list

( "("

string_literal

" "\""

string_fragment "base"

" "\""

) ")"

; ";"

line_comment "// First, we need to free up the function expression (EXPR)"

line_comment "// to be used in another expression."

line_comment "// Replace \"function NAME() { ... }\" with \"var NAME;\"."

line_comment "// We can't keep the local name on the function expression,"

line_comment "// because IE is buggy and will leak the name into the globa"...

line_comment "// scope. This is covered in more detail here:"

line_comment "// http://wiki.ecmascript.org/lib/exe/fetch.php?id=resources"...

line_comment "//"

line_comment "// This will only cause problems if this is a hoisted, recur"...

line_comment "// function, and the programmer is using the hoisting."

line_comment "// If this is a VAR, we can just detach the expression and"

line_comment "// the tree will still be valid."

line_comment "// Add $jscomp.scope.name = EXPR;"

line_comment "// Make sure we copy over all the jsdoc and debug info."

if_statement

if "if"

parenthesized_expression

( "("

binary_expression

identifier "value"

!= "!="

null_literal "null"

|| "||"

binary_expression

method_invocation

identifier "v"

. "."

identifier "getJSDocInfo"

argument_list

( "("

) ")"

!= "!="

null_literal "null"

) ")"

block

{ "{"

local_variable_declaration (+39 nodes collapsed)

expression_statement (+26 nodes collapsed)

expression_statement

method_invocation

identifier "grandparent"

. "."

identifier "addChildBefore"

argument_list

( "("

identifier "newDecl"

, ","

identifier "varNode"

) ")"

; ";"

} "}"

line_comment "// Rewrite \"var name = EXPR;\" to \"var name = $jscomp.scope.n"...

expression_statement (+35 nodes collapsed)

expression_statement

method_invocation

identifier "recordAlias"

argument_list

( "("

identifier "v"

) ")"

; ";"

} "}"

else "else"

block (+24 nodes collapsed)

} "}"

method_declaration (+146 nodes collapsed)

block_comment "/** Find out if there are any local shadows of namespaces. *"...

method_declaration (+87 nodes collapsed)

block_comment "/**\n * Rename any local shadows of namespaces.\n * Th"...

method_declaration (+106 nodes collapsed)

method_declaration (+201 nodes collapsed)

method_declaration (+472 nodes collapsed)

method_declaration (+186 nodes collapsed)

} "}"

After

program

package_declaration

package "package"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "javascript"

. "."

identifier "jscomp"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "common"

. "."

identifier "base"

. "."

identifier "Preconditions"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "common"

. "."

identifier "collect"

. "."

identifier "HashMultiset"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "common"

. "."

identifier "collect"

. "."

identifier "Lists"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "common"

. "."

identifier "collect"

. "."

identifier "Maps"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "common"

. "."

identifier "collect"

. "."

identifier "Multiset"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "common"

. "."

identifier "collect"

. "."

identifier "Sets"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "javascript"

. "."

identifier "jscomp"

. "."

identifier "CompilerOptions"

. "."

identifier "AliasTransformation"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "javascript"

. "."

identifier "jscomp"

. "."

identifier "CompilerOptions"

. "."

identifier "AliasTransformationHandler"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "javascript"

. "."

identifier "jscomp"

. "."

identifier "Scope"

. "."

identifier "Var"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "javascript"

. "."

identifier "rhino"

. "."

identifier "IR"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "javascript"

. "."

identifier "rhino"

. "."

identifier "JSDocInfo"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "javascript"

. "."

identifier "rhino"

. "."

identifier "Node"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "javascript"

. "."

identifier "rhino"

. "."

identifier "SourcePosition"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "com"

. "."

identifier "google"

. "."

identifier "javascript"

. "."

identifier "rhino"

. "."

identifier "Token"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "java"

. "."

identifier "util"

. "."

identifier "Collection"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "java"

. "."

identifier "util"

. "."

identifier "List"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "java"

. "."

identifier "util"

. "."

identifier "Map"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "java"

. "."

identifier "util"

. "."

identifier "Set"

; ";"

import_declaration

import "import"

scoped_identifier

identifier "javax"

. "."

identifier "annotation"

. "."

identifier "Nullable"

; ";"

block_comment "/**\n * Process aliases in goog.scope blocks.\n *\n * goog.scop"...

class_declaration

class "class"

identifier "ScopedAliases"

super_interfaces

implements "implements"

type_list

type_identifier "HotSwapCompilerPass"

class_body

{ "{"

block_comment "/** Name used to denote an scoped function block used for al"...

field_declaration

modifiers

static "static"

final "final"

type_identifier "String"

variable_declarator

identifier "SCOPING_METHOD_NAME"

= "="

string_literal

" "\""

string_fragment "goog.scope"

" "\""

; ";"

field_declaration

modifiers

private "private"

final "final"

type_identifier "AbstractCompiler"

variable_declarator

identifier "compiler"

; ";"

field_declaration

modifiers

private "private"

final "final"

type_identifier "PreprocessorSymbolTable"

variable_declarator

identifier "preprocessorSymbolTable"

; ";"

field_declaration

modifiers

private "private"

final "final"

type_identifier "AliasTransformationHandler"

variable_declarator

identifier "transformationHandler"

; ";"

line_comment "// Errors"

field_declaration (+25 nodes collapsed)

field_declaration (+31 nodes collapsed)

field_declaration (+25 nodes collapsed)

field_declaration

modifiers

private "private"

generic_type

type_identifier "Multiset"

type_arguments

< "<"

type_identifier "String"

> ">"

variable_declarator

identifier "scopedAliasNames"

= "="

method_invocation

identifier "HashMultiset"

. "."

identifier "create"

argument_list

( "("

) ")"

; ";"

constructor_declaration (+50 nodes collapsed)

method_declaration (+31 nodes collapsed)

method_declaration (+500 nodes collapsed)

class_declaration (+138 nodes collapsed)

class_declaration (+86 nodes collapsed)

class_declaration (+144 nodes collapsed)

class_declaration

modifiers

private "private"

class "class"

identifier "Traversal"

super_interfaces

implements "implements"

type_list

scoped_type_identifier

type_identifier "NodeTraversal"

. "."

type_identifier "ScopedCallback"

class_body

{ "{"

line_comment "// The job of this class is to collect these three data sets"...

line_comment "// The order of this list determines the order that aliases "...

field_declaration (+21 nodes collapsed)

line_comment "// This map is temporary and cleared for each scope."

field_declaration (+23 nodes collapsed)

line_comment "// Suppose you create an alias."

line_comment "// var x = goog.x;"

line_comment "// As a side-effect, this means you can shadow the namespace"...

line_comment "// in inner scopes. When we inline the namespaces, we have t"...

line_comment "// these shadows."

line_comment "//"

line_comment "// Fortunately, we already have a name uniquifier that runs "...

line_comment "// normalization (before optimizations). We run it here on a"...

line_comment "// set of variables, but only as a last resort (because this"...

line_comment "// up warning messages downstream)."

field_declaration (+25 nodes collapsed)

field_declaration

modifiers

private "private"

boolean_type "boolean"

variable_declarator

identifier "hasNamespaceShadows"

= "="

false "false"

; ";"

field_declaration

modifiers

private "private"

boolean_type "boolean"

variable_declarator

identifier "hasErrors"

= "="

false "false"

; ";"

field_declaration

modifiers

private "private"

type_identifier "AliasTransformation"

variable_declarator

identifier "transformation"

= "="

null_literal "null"

; ";"

method_declaration

generic_type

type_identifier "Collection"

type_arguments

< "<"

type_identifier "Node"

> ">"

identifier "getAliasDefinitionsInOrder"

formal_parameters

( "("

) ")"

block

{ "{"

return_statement

return "return"

identifier "aliasDefinitionsInOrder"

; ";"

} "}"

method_declaration

modifiers

private "private"

generic_type

type_identifier "List"

type_arguments

< "<"

type_identifier "AliasUsage"

> ">"

identifier "getAliasUsages"

formal_parameters

( "("

) ")"

block

{ "{"

return_statement

return "return"

identifier "aliasUsages"

; ";"

} "}"

method_declaration

generic_type

type_identifier "List"

type_arguments

< "<"

type_identifier "Node"

> ">"

identifier "getScopeCalls"

formal_parameters

( "("

) ")"

block

{ "{"

return_statement

return "return"

identifier "scopeCalls"

; ";"

} "}"

method_declaration

boolean_type "boolean"

identifier "hasErrors"

formal_parameters

( "("

) ")"

block

{ "{"

return_statement

return "return"

identifier "hasErrors"

; ";"

} "}"

method_declaration (+46 nodes collapsed)

method_declaration (+90 nodes collapsed)

method_declaration (+99 nodes collapsed)

method_declaration (+81 nodes collapsed)

method_declaration (+186 nodes collapsed)

method_declaration (+55 nodes collapsed)

method_declaration

modifiers

private "private"

void_type "void"

identifier "findAliases"

formal_parameters

( "("

formal_parameter

type_identifier "NodeTraversal"

identifier "t"

) ")"

block

{ "{"

local_variable_declaration

type_identifier "Scope"

variable_declarator

identifier "scope"

= "="

method_invocation

identifier "t"

. "."

identifier "getScope"

argument_list

( "("

) ")"

; ";"

enhanced_for_statement

for "for"

( "("

type_identifier "Var"

identifier "v"

: ":"

method_invocation

identifier "scope"

. "."

identifier "getVarIterable"

argument_list

( "("

) ")"

block

{ "{"

local_variable_declaration

type_identifier "Node"

variable_declarator

identifier "n"

= "="

method_invocation

identifier "v"

. "."

identifier "getNode"

argument_list

( "("

) ")"

; ";"

local_variable_declaration

type_identifier "Node"

variable_declarator

identifier "parent"

= "="

method_invocation

identifier "n"

. "."

identifier "getParent"

argument_list

( "("

) ")"

; ";"

local_variable_declaration

boolean_type "boolean"

variable_declarator

identifier "isVar"

= "="

method_invocation

identifier "parent"

. "."

identifier "isVar"

argument_list

( "("

) ")"

; ";"

local_variable_declaration

boolean_type "boolean"

variable_declarator

identifier "isFunctionDecl"

= "="

method_invocation

identifier "NodeUtil"

. "."

identifier "isFunctionDeclaration"

argument_list

( "("

identifier "parent"

) ")"

; ";"

if_statement

if "if"

parenthesized_expression (+31 nodes collapsed)

block

{ "{"

expression_statement

method_invocation

identifier "recordAlias"

argument_list

( "("

identifier "v"

) ")"

; ";"

} "}"

else "else"

if_statement

if "if"

parenthesized_expression

( "("

method_invocation

identifier "v"

. "."

identifier "isBleedingFunction"

argument_list

( "("

) ")"

block

{ "{"

line_comment "// Bleeding functions already get a BAD_PARAMETERS error, so"...

line_comment "// do nothing."

} "}"

else "else"

if_statement

if "if"

parenthesized_expression

( "("

binary_expression

method_invocation

identifier "parent"

. "."

identifier "getType"

argument_list

( "("

) ")"

== "=="

field_access

identifier "Token"

. "."

identifier "LP"

) ")"

block

{ "{"

line_comment "// Parameters of the scope function also get a BAD_PARAMETER"...

line_comment "// error."

} "}"

else "else"

if_statement

if "if"

parenthesized_expression

( "("

binary_expression

identifier "isVar"

|| "||"

identifier "isFunctionDecl"

) ")"

block

{ "{"

local_variable_declaration

boolean_type "boolean"

variable_declarator

identifier "isHoisted"

= "="

method_invocation

identifier "NodeUtil"

. "."

identifier "isHoistedFunctionDeclaration"

argument_list

( "("

identifier "parent"

) ")"

; ";"

local_variable_declaration

type_identifier "Node"

variable_declarator

identifier "grandparent"

= "="

method_invocation

identifier "parent"

. "."

identifier "getParent"

argument_list

( "("

) ")"

; ";"

local_variable_declaration

type_identifier "Node"

variable_declarator

identifier "value"

= "="

ternary_expression

binary_expression

method_invocation all 1:2

identifier "v" all 1:2

. "." all 1:2

identifier "getInitialValue" all 1:2

argument_list all 1:2

( "(" all 1:2

) ")" all 1:2

!= "!="

null_literal "null"

? "?"

method_invocation all 1:2

identifier "v" all 1:2

. "." all 1:2

identifier "getInitialValue" all 1:2

argument_list all 1:2

( "(" all 1:2

) ")" all 1:2

: ":"

null_literal "null"

; ";"

local_variable_declaration

type_identifier "Node"

variable_declarator

identifier "varNode"

= "="

null_literal "null"

; ";"

local_variable_declaration

type_identifier "String"

variable_declarator

identifier "name"

= "="

method_invocation

identifier "n"

. "."

identifier "getString"

argument_list

( "("

) ")"

; ";"

local_variable_declaration

integral_type

int "int"

variable_declarator

identifier "nameCount"

= "="

method_invocation

identifier "scopedAliasNames"

. "."

identifier "count"

argument_list

( "("

identifier "name"

) ")"

; ";"

expression_statement

method_invocation

identifier "scopedAliasNames"

. "."

identifier "add"

argument_list

( "("

identifier "name"

) ")"

; ";"

local_variable_declaration (+38 nodes collapsed)

expression_statement

method_invocation

identifier "compiler"

. "."

identifier "ensureLibraryInjected"

argument_list

( "("

string_literal

" "\""

string_fragment "base"

" "\""

) ")"

; ";"

line_comment "// First, we need to free up the function expression (EXPR)"

line_comment "// to be used in another expression."

if_statement

if "if"

parenthesized_expression

( "("

identifier "isFunctionDecl"

) ")"

block

{ "{"

line_comment "// Replace \"function NAME() { ... }\" with \"var NAME;\"."

local_variable_declaration

type_identifier "Node"

variable_declarator

identifier "existingName"

= "="

method_invocation

identifier "v"

. "."

identifier "getNameNode"

argument_list

( "("

) ")"

; ";"

line_comment "// We can't keep the local name on the function expression,"

line_comment "// because IE is buggy and will leak the name into the globa"...

line_comment "// scope. This is covered in more detail here:"

line_comment "// http://wiki.ecmascript.org/lib/exe/fetch.php?id=resources"...

line_comment "//"

line_comment "// This will only cause problems if this is a hoisted, recur"...

line_comment "// function, and the programmer is using the hoisting."

local_variable_declaration

type_identifier "Node"

variable_declarator

identifier "newName"

= "="

method_invocation

identifier "IR"

. "."

identifier "name"

argument_list

( "("

string_literal

" "\""

) ")"

. "."

identifier "useSourceInfoFrom"

argument_list

( "("

identifier "existingName"

) ")"

; ";"

expression_statement

method_invocation

identifier "value"

. "."

identifier "replaceChild"

argument_list

( "("

identifier "existingName"

, ","

identifier "newName"

) ")"

; ";"

expression_statement

assignment_expression

identifier "varNode"

= "="

method_invocation

identifier "IR"

. "."

identifier "var"

argument_list

( "("

identifier "existingName"

) ")"

. "."

identifier "useSourceInfoFrom"

argument_list

( "("

identifier "existingName"

) ")"

; ";"

expression_statement

method_invocation

identifier "grandparent"

. "."

identifier "replaceChild"

argument_list

( "("

identifier "parent"

, ","

identifier "varNode"

) ")"

; ";"

} "}"

else "else"

block

{ "{"

if_statement

if "if"

parenthesized_expression

( "("

binary_expression

identifier "value"

!= "!="

null_literal "null"

) ")"

block

{ "{"

line_comment "// If this is a VAR, we can just detach the expression and"

line_comment "// the tree will still be valid."

expression_statement

method_invocation

identifier "value"

. "."

identifier "detachFromParent"

argument_list

( "("

) ")"

; ";"

} "}"

expression_statement

assignment_expression

identifier "varNode"

= "="

identifier "parent"

; ";"

} "}"

line_comment "// Add $jscomp.scope.name = EXPR;"

line_comment "// Make sure we copy over all the jsdoc and debug info."

if_statement

if "if"

parenthesized_expression

( "("

binary_expression

identifier "value"

!= "!="

null_literal "null"

|| "||"

binary_expression

method_invocation

identifier "v"

. "."

identifier "getJSDocInfo"

argument_list

( "("

) ")"

!= "!="

null_literal "null"

) ")"

block

{ "{"

local_variable_declaration (+39 nodes collapsed)

expression_statement (+26 nodes collapsed)

if_statement

if "if"

parenthesized_expression

( "("

identifier "isHoisted"

) ")"

block

{ "{"

expression_statement

method_invocation

identifier "grandparent"

. "."

identifier "addChildToFront"

argument_list

( "("

identifier "newDecl"

) ")"

; ";"

} "}"

else "else"

block

{ "{"

expression_statement

method_invocation

identifier "grandparent"

. "."

identifier "addChildBefore"

argument_list

( "("

identifier "newDecl"

, ","

identifier "varNode"

) ")"

; ";"

} "}"

line_comment "// Rewrite \"var name = EXPR;\" to \"var name = $jscomp.scope.n"...

expression_statement (+35 nodes collapsed)

expression_statement

method_invocation

identifier "recordAlias"

argument_list

( "("

identifier "v"

) ")"

; ";"

} "}"

else "else"

block (+24 nodes collapsed)

} "}"

method_declaration (+146 nodes collapsed)

block_comment "/** Find out if there are any local shadows of namespaces. *"...

method_declaration (+87 nodes collapsed)

block_comment "/**\n * Rename any local shadows of namespaces.\n * Th"...

method_declaration (+106 nodes collapsed)

method_declaration (+201 nodes collapsed)

method_declaration (+472 nodes collapsed)

method_declaration (+186 nodes collapsed)

} "}"