Microsoft/TypeScript
1
0
Fork 0
mirror of https://github.com/microsoft/TypeScript.git synced 2025-11-18 17:21:48 +00:00
Code Issues Packages Projects Releases Wiki Activity

Move grammar check: InterfaceDeclaration, HeritageClause

Browse Source
This commit is contained in:
Yui T
2014-12-12 15:52:27 -08:00
parent 5b98eba3d8
commit 3903a65062
7 changed files with 64 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/compiler/checker.ts
+46
View File
@@ -8468,6 +8468,9 @@ module ts {
}
function checkInterfaceDeclaration(node: InterfaceDeclaration) {
// Grammar checking
checkGrammarInterfaceDeclaration(node);
checkTypeParameters(node.typeParameters);
if (fullTypeCheck) {
checkTypeNameIsReserved(node.name, Diagnostics.Interface_name_cannot_be_0);
@@ -10008,6 +10011,18 @@ module ts {
}
}
function checkGrammarHeritageClause(node: HeritageClause): boolean {
var types = node.types;
if (checkGrammarForDisallowedTrailingComma(types)) {
return true;
}
var listType = tokenToString(node.token);
if (types && types.length === 0) {
var sourceFile = getSourceFileOfNode(node);
return grammarErrorAtPos(sourceFile, types.pos, 0, Diagnostics._0_list_cannot_be_empty, listType)
}
}
function checkGrammarClassDeclarationHeritageClauses(node: ClassDeclaration) {
var seenExtendsClause = false;
var seenImplementsClause = false;
@@ -10044,10 +10059,41 @@ module ts {
seenImplementsClause = true;
}
// Grammar checking heritageClause inside class declaration
checkGrammarHeritageClause(heritageClause);
}
}
}
function checkGrammarInterfaceDeclaration(node: InterfaceDeclaration) {
var seenExtendsClause = false;
if (node.heritageClauses) {
for (var i = 0, n = node.heritageClauses.length; i < n; i++) {
Debug.assert(i <= 1);
var heritageClause = node.heritageClauses[i];
if (heritageClause.token === SyntaxKind.ExtendsKeyword) {
if (seenExtendsClause) {
return grammarErrorOnFirstToken(heritageClause, Diagnostics.extends_clause_already_seen);
}
seenExtendsClause = true;
}
else {
Debug.assert(heritageClause.token === SyntaxKind.ImplementsKeyword);
return grammarErrorOnFirstToken(heritageClause, Diagnostics.Interface_declaration_cannot_have_implements_clause);
}
// Grammar checking heritageClause inside class declaration
checkGrammarHeritageClause(heritageClause);
}
}
return false;
}
function checkGrammarComputedPropertyName(node: ComputedPropertyName): void {
// Since computed properties are not supported in the type checker, disallow them in TypeScript 1.4
// Once full support is added, remove this error.
src/compiler/parser.ts
+2 -2
View File
@@ -4649,8 +4649,8 @@ module ts {
case SyntaxKind.FunctionDeclaration: return checkFunctionDeclaration(<FunctionLikeDeclaration>node);
//case SyntaxKind.FunctionExpression: return checkFunctionExpression(<FunctionExpression>node);
case SyntaxKind.GetAccessor: return checkGetAccessor(<MethodDeclaration>node);
case SyntaxKind.HeritageClause: return checkHeritageClause(<HeritageClause>node);
case SyntaxKind.InterfaceDeclaration: return checkInterfaceDeclaration(<InterfaceDeclaration>node);
//case SyntaxKind.HeritageClause: return checkHeritageClause(<HeritageClause>node);
//case SyntaxKind.InterfaceDeclaration: return checkInterfaceDeclaration(<InterfaceDeclaration>node);
case SyntaxKind.LabeledStatement: return checkLabeledStatement(<LabeledStatement>node);
case SyntaxKind.PropertyAssignment: return checkPropertyAssignment(<PropertyAssignment>node);
case SyntaxKind.MethodDeclaration: