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Use 'MapLike' instead of 'Map' in 'preferConstRule.ts'. #10323

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Merged
DanielRosenwasser merged 1 commit into from
Aug 13, 2016
Merged

Use 'MapLike' instead of 'Map' in 'preferConstRule.ts'. #10323

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13 changes: 6 additions & 7 deletions scripts/tslint/preferConstRule.ts
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Original file line number Diff line number Diff line change
@@ -1,7 +1,6 @@
import * as Lint from "tslint/lib/lint";
import * as ts from "typescript";


export class Rule extends Lint.Rules.AbstractRule {
public static FAILURE_STRING_FACTORY = (identifier: string) => `Identifier '${identifier}' never appears on the LHS of an assignment - use const instead of let for its declaration.`;

Expand Down Expand Up @@ -64,7 +63,7 @@ interface DeclarationUsages {
}

class PreferConstWalker extends Lint.RuleWalker {
private inScopeLetDeclarations: ts.Map<DeclarationUsages>[] = [];
private inScopeLetDeclarations: ts.MapLike<DeclarationUsages>[] = [];
private errors: Lint.RuleFailure[] = [];
private markAssignment(identifier: ts.Identifier) {
const name = identifier.text;
Expand Down Expand Up @@ -172,7 +171,7 @@ class PreferConstWalker extends Lint.RuleWalker {
}

private visitAnyForStatement(node: ts.ForOfStatement | ts.ForInStatement) {
const names: ts.Map<DeclarationUsages> = {};
const names: ts.MapLike<DeclarationUsages> = {};
if (isLet(node.initializer)) {
if (node.initializer.kind === ts.SyntaxKind.VariableDeclarationList) {
this.collectLetIdentifiers(node.initializer as ts.VariableDeclarationList, names);
Expand All @@ -194,7 +193,7 @@ class PreferConstWalker extends Lint.RuleWalker {
}

visitBlock(node: ts.Block) {
const names: ts.Map<DeclarationUsages> = {};
const names: ts.MapLike<DeclarationUsages> = {};
for (const statement of node.statements) {
if (statement.kind === ts.SyntaxKind.VariableStatement) {
this.collectLetIdentifiers((statement as ts.VariableStatement).declarationList, names);
Expand All @@ -205,15 +204,15 @@ class PreferConstWalker extends Lint.RuleWalker {
this.popDeclarations();
}

private collectLetIdentifiers(list: ts.VariableDeclarationList, ret: ts.Map<DeclarationUsages>) {
private collectLetIdentifiers(list: ts.VariableDeclarationList, ret: ts.MapLike<DeclarationUsages>) {
for (const node of list.declarations) {
if (isLet(node) && !isExported(node)) {
this.collectNameIdentifiers(node, node.name, ret);
}
}
}

private collectNameIdentifiers(declaration: ts.VariableDeclaration, node: ts.Identifier | ts.BindingPattern, table: ts.Map<DeclarationUsages>) {
private collectNameIdentifiers(declaration: ts.VariableDeclaration, node: ts.Identifier | ts.BindingPattern, table: ts.MapLike<DeclarationUsages>) {
if (node.kind === ts.SyntaxKind.Identifier) {
table[(node as ts.Identifier).text] = { declaration, usages: 0 };
}
Expand All @@ -222,7 +221,7 @@ class PreferConstWalker extends Lint.RuleWalker {
}
}

private collectBindingPatternIdentifiers(value: ts.VariableDeclaration, pattern: ts.BindingPattern, table: ts.Map<DeclarationUsages>) {
private collectBindingPatternIdentifiers(value: ts.VariableDeclaration, pattern: ts.BindingPattern, table: ts.MapLike<DeclarationUsages>) {
for (const element of pattern.elements) {
this.collectNameIdentifiers(value, element.name, table);
}
Expand Down