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Simplify the API for emitting code from the Program instance.

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This commit is contained in:
Cyrus Najmabadi
2015-02-04 16:53:14 -08:00
parent b6d083fa40
commit bb307f8163
19 changed files with 263 additions and 152 deletions
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24
src/compiler/program.ts
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@@ -90,7 +90,6 @@ module ts {
var diagnosticsProducingTypeChecker: TypeChecker;
var noDiagnosticsTypeChecker: TypeChecker;
var emitHost: EmitHost;
program = {
getSourceFile: getSourceFile,
@@ -105,7 +104,7 @@ module ts {
getTypeChecker,
getDiagnosticsProducingTypeChecker,
getCommonSourceDirectory: () => commonSourceDirectory,
emitFiles: invokeEmitter,
emit,
isEmitBlocked,
getCurrentDirectory: host.getCurrentDirectory,
getEmitResolver: () => getDiagnosticsProducingTypeChecker().getEmitResolver(),
@@ -116,10 +115,22 @@ module ts {
};
return program;
function getEmitHost() {
return emitHost || (emitHost = createEmitHostFromProgram(program));
function getEmitHost(writeFileCallback?: WriteFileCallback) {
var compilerHost = program.getCompilerHost();
return {
getCanonicalFileName: compilerHost.getCanonicalFileName,
getCommonSourceDirectory: program.getCommonSourceDirectory,
getCompilerOptions: program.getCompilerOptions,
getCurrentDirectory: compilerHost.getCurrentDirectory,
getNewLine: compilerHost.getNewLine,
getSourceFile: program.getSourceFile,
getSourceFiles: program.getSourceFiles,
isEmitBlocked: program.isEmitBlocked,
writeFile: writeFileCallback || compilerHost.writeFile,
};
}
function isEmitBlocked(sourceFile?: SourceFile): boolean {
if (options.noEmitOnError) {
return getDiagnostics(sourceFile).length !== 0 || getTypeCheckerDiagnostics(sourceFile).length !== 0;
@@ -143,9 +154,10 @@ module ts {
return ts.getDeclarationDiagnostics(getEmitHost(), resolver, targetSourceFile);
}
function invokeEmitter(targetSourceFile?: SourceFile) {
function emit(targetSourceFile?: SourceFile, writeFileCallback?: WriteFileCallback) {
var resolver = getDiagnosticsProducingTypeChecker().getEmitResolver();
return emitFiles(resolver, getEmitHost(), targetSourceFile);
var host = getEmitHost(writeFileCallback);
return emitFiles(resolver, host, targetSourceFile);
}
function getSourceFile(fileName: string) {