/**
* Runs middleend passes on the given Soy tree.
*
* @param soyTree The Soy tree to run middleend passes on.
* @param doEnforceSyntaxVersionV2 Whether to enforce SyntaxVersion.V2.
* @throws SoySyntaxException If a syntax error is found.
* @throws SoyAutoescapeException If there is a problem determining the context for an {@code
* autoescape="contextual"} template or one of its callers.
*/
private void runMiddleendPasses(SoyFileSetNode soyTree, boolean doEnforceSyntaxVersionV2)
throws SoySyntaxException {
// If diallowing external calls, perform the check.
if (generalOptions.allowExternalCalls() == Boolean.FALSE) {
(new AssertNoExternalCallsVisitor()).exec(soyTree);
}
// Handle CSS commands (if not backend-specific) and substitute compile-time globals.
(new HandleCssCommandVisitor(generalOptions.getCssHandlingScheme())).exec(soyTree);
if (generalOptions.getCompileTimeGlobals() != null) {
(new SubstituteGlobalsVisitor(generalOptions.getCompileTimeGlobals(), false)).exec(soyTree);
}
// Soy version 1 allowed calling functions that are not backed by any SoyFunction definition.
checkFunctionCallsVisitor.setAllowExternallyDefinedFunctions(!doEnforceSyntaxVersionV2);
checkFunctionCallsVisitor.exec(soyTree);
// Run contextual escaping after CSS has been done, but before the autoescape visitor adds
// |escapeHtml directives. The contextual directive filterHtmlIdent serves the same purpose
// in some places, but with runtime guarantees.
doContextualEscaping(soyTree);
performAutoescapeVisitor.exec(soyTree);
// Attempt to simplify the tree.
(new ChangeCallsToPassAllDataVisitor()).exec(soyTree);
simplifyVisitor.exec(soyTree);
}
/**
* Compiles this Soy file set into a Java object (type {@code SoyTofu}) capable of rendering the
* compiled templates.
*
* @param tofuOptions The compilation options for the Tofu backend.
* @return The resulting {@code SoyTofu} object.
* @throws SoySyntaxException If a syntax error is found.
*/
public SoyTofu compileToTofu(SoyTofuOptions tofuOptions) throws SoySyntaxException {
// Defensive copy of options. (Doesn't matter now, but might forget later when it matters.)
tofuOptions = tofuOptions.clone();
// TODO: Allow binding a SoyTofu instance to volatile inputs.
SoyFileSetNode soyTree = (new SoyFileSetParser(soyFileSuppliers)).parse();
runMiddleendPasses(soyTree, true);
// If allowExternalCalls is not explicitly set, then disallow by default for Tofu backend.
if (generalOptions.allowExternalCalls() == null) {
// TODO: Enable this check when all Google internal projects are compliant.
// (new AssertNoExternalCallsVisitor()).exec(soyTree);
}
// Note: Globals should have been substituted already. The pass below is just a check.
(new SubstituteGlobalsVisitor(generalOptions.getCompileTimeGlobals(), true)).exec(soyTree);
// Clear the SoyDoc strings because they use unnecessary memory.
(new ClearSoyDocStringsVisitor()).exec(soyTree);
return baseTofuFactory.create(soyTree, tofuOptions.useCaching());
}