Examples of com.google.javascript.jscomp.Scope.Var

Package com.google.javascript.jscomp.Scope

Examples of com.google.javascript.jscomp.Scope.Var

com.google.javascript.jscomp.Scope.Var


    /** Checks to see if this references another alias. */
    public boolean referencesOtherAlias() {
      Node aliasDefinition = aliasVar.getInitialValue();
      Node root = NodeUtil.getRootOfQualifiedName(aliasDefinition);
      Var otherAliasVar = aliasVar.getScope().getOwnSlot(root.getString());
      return otherAliasVar != null;
    }

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      if (t.getScopeDepth() < 2) {
        return;
      }


      int type = n.getType();
      Var aliasVar = null;
      if (type == Token.NAME) {
        String name = n.getString();
        Var lexicalVar = t.getScope().getVar(n.getString());
        if (lexicalVar != null && lexicalVar == aliases.get(name)) {
          aliasVar = lexicalVar;
        }
      }

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        int endIndex = name.indexOf('.');
        if (endIndex == -1) {
          endIndex = name.length();
        }
        String baseName = name.substring(0, endIndex);
        Var aliasVar = aliases.get(baseName);
        if (aliasVar != null) {
          aliasUsages.add(new AliasedTypeNode(aliasVar, typeNode));
        }
      }

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      }
      String name = lhs.getString();
      if (!scope.isDeclared(name, false)) {
        return;
      }
      Var var = scope.getVar(name);


      if (liveness.getEscapedLocals().contains(var)) {
        return; // Local variable that might be escaped due to closures.
      }

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      if (t.inGlobalScope()) {
        return;
      }


      for (Iterator<Var> it = t.getScope().getVars(); it.hasNext();) {
        Var v = it.next();
        handleScopeVar(v);
      }


      // Merge any names that were referenced but not declared in the current
      // scope.

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      this.startingScope = null;
    }


    private boolean isShadowed(String name, Scope scope) {
      Var nameVar = scope.getVar(name);
      return nameVar != null &&
          nameVar.getScope() != this.startingScope;
    }

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      // name to shadow a global variable.
      if (t.inGlobalScope()) {
        return;
      }


      Var var = t.getScope().getVar(n.getString());
      if (var == null) {
        // extern name or undefined name.
        return;
      }


      if (var.getScope().isGlobal()) {
        // We will not shadow a global variable name.
        return;
      }


      // Using the definition of upward referencing, fill in the map.
      if (var.getScope() != t.getScope()) {
        for (Scope s = t.getScope();
            s != var.getScope() && s.isLocal(); s = s.getParent()) {
          scopeUpRefMap.put(s.getRootNode(), var.name);
        }
      }


      if (var.getScope() == t.getScope()) {
        scopeUpRefMap.put(t.getScopeRoot(), var.name);
      }


      // Find in the usage map that tracks a var and all of its usage.
      varToNameUsage.put(var, n);

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      if (s.getParent().isGlobal()) {
        return;
      }


      for (Iterator<Var> vars = s.getVars(); vars.hasNext();) {
        Var var = vars.next();


        // Don't shadow variables that is bleed-out to fix an IE bug.
        if (var.isBleedingFunction()) {
          continue;
        }


        // Don't shadow an exported local.
        if (compiler.getCodingConvention().isExported(var.name, s.isLocal())) {
          continue;
        }


        // Try to look for the best shadow for the current candidate.
        Assignment bestShadow = findBestShadow(s);
        if (bestShadow == null) {
          continue;
        }


        // The name assignment being shadowed.
        Assignment localAssignment = assignments.get(var.getName());


        // Only shadow if this increases the number of occurrences of the
        // shadowed variable.
        if (bestShadow.count < localAssignment.count) {
          continue; // Hope the next local variable would have a smaller count.

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      // This is an important step. If variable L7 is going to be renamed to
      // L1, by definition of upward referencing, The name L1 is now in the
      // set of upward referencing names of the current scope up to the
      // declaring scope of the best shadow variable.
      Var shadowed = s.getVar(toShadow.oldName);
      if (shadowed != null) {
        for (Scope curScope = s; curScope != shadowed.scope;
            curScope = curScope.getParent()) {
          scopeUpRefMap.put(curScope.getRootNode(), toShadow.oldName);
        }

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    // var obj = createUnknownType();
    // /** @type {number} */ obj.foo = true;
    JSType leftType = getJSType(lvalue);
    if (lvalue.isQualifiedName()) {
      // variable with inferred type case
      Var var = t.getScope().getVar(lvalue.getQualifiedName());
      if (var != null) {
        if (var.isTypeInferred()) {
          return;
        }


        if (NodeUtil.getRootOfQualifiedName(lvalue).isThis() &&
            t.getScope() != var.getScope()) {
          // Don't look at "this.foo" variables from other scopes.
          return;
        }


        if (var.getType() != null) {
          leftType = var.getType();
        }
      }
    }


    // Fall through case for arbitrary LHS and arbitrary RHS.

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