Jordan Delong
363d1bb20f
This change is mostly for FB internal organizational reasons. Building is not effected beyond the fact that the target now lands in hphp/hhvm/hhvm rather than src/hhvm/hhvm.
316 linhas
10 KiB
C++
316 linhas
10 KiB
C++
/*
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+----------------------------------------------------------------------+
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| HipHop for PHP |
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+----------------------------------------------------------------------+
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| Copyright (c) 2010- Facebook, Inc. (http://www.facebook.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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*/
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#include <compiler/expression/dynamic_function_call.h>
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#include <compiler/analysis/code_error.h>
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#include <compiler/expression/expression_list.h>
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#include <compiler/expression/scalar_expression.h>
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#include <compiler/expression/simple_function_call.h>
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#include <compiler/analysis/function_scope.h>
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#include <compiler/analysis/class_scope.h>
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#include <util/util.h>
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#include <compiler/option.h>
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#include <compiler/analysis/variable_table.h>
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using namespace HPHP;
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///////////////////////////////////////////////////////////////////////////////
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// constructors/destructors
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DynamicFunctionCall::DynamicFunctionCall
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(EXPRESSION_CONSTRUCTOR_PARAMETERS,
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ExpressionPtr name, ExpressionListPtr params, ExpressionPtr cls)
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: FunctionCall(EXPRESSION_CONSTRUCTOR_PARAMETER_VALUES(DynamicFunctionCall),
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name, "", params, cls) {
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}
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ExpressionPtr DynamicFunctionCall::clone() {
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DynamicFunctionCallPtr exp(new DynamicFunctionCall(*this));
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FunctionCall::deepCopy(exp);
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return exp;
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}
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///////////////////////////////////////////////////////////////////////////////
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// parser functions
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///////////////////////////////////////////////////////////////////////////////
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// static analysis functions
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void DynamicFunctionCall::analyzeProgram(AnalysisResultPtr ar) {
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FunctionCall::analyzeProgram(ar);
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if (ar->getPhase() >= AnalysisResult::AnalyzeAll) {
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if (!m_className.empty()) {
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resolveClass();
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}
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if (!m_class) {
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addUserClass(ar, m_className);
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}
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if (m_params) {
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m_params->markParams(canInvokeFewArgs());
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}
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if (!m_class && m_className.empty()) {
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FunctionScopePtr fs = getFunctionScope();
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VariableTablePtr vt = fs->getVariables();
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vt->setAttribute(VariableTable::ContainsDynamicFunctionCall);
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}
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}
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}
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ExpressionPtr DynamicFunctionCall::preOptimize(AnalysisResultConstPtr ar) {
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if (ExpressionPtr rep = FunctionCall::preOptimize(ar)) return rep;
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if (m_nameExp->isScalar()) {
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Variant v;
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if (m_nameExp->getScalarValue(v) &&
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v.isString()) {
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string name = v.toString().c_str();
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ExpressionPtr cls = m_class;
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if (!cls && !m_className.empty()) {
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cls = makeScalarExpression(ar, m_className);
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}
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return ExpressionPtr(NewSimpleFunctionCall(
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getScope(), getLocation(),
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name, m_params, cls));
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}
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}
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return ExpressionPtr();
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}
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TypePtr DynamicFunctionCall::inferTypes(AnalysisResultPtr ar, TypePtr type,
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bool coerce) {
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reset();
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ConstructPtr self = shared_from_this();
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if (m_class) {
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m_class->inferAndCheck(ar, Type::Any, false);
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} else if (!m_className.empty()) {
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ClassScopePtr cls = resolveClassWithChecks();
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if (cls) {
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m_classScope = cls;
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}
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}
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if (!m_class && m_className.empty()) {
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m_nameExp->inferAndCheck(ar, Type::Variant, false);
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} else {
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m_nameExp->inferAndCheck(ar, Type::String, false);
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}
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if (m_params) {
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for (int i = 0; i < m_params->getCount(); i++) {
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(*m_params)[i]->inferAndCheck(ar, Type::Variant, true);
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}
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}
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return Type::Variant;
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}
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///////////////////////////////////////////////////////////////////////////////
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// code generation functions
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void DynamicFunctionCall::outputPHP(CodeGenerator &cg, AnalysisResultPtr ar) {
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outputLineMap(cg, ar);
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if (m_class || !m_className.empty()) {
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StaticClassName::outputPHP(cg, ar);
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cg_printf("::");
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m_nameExp->outputPHP(cg, ar);
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} else {
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const char *prefix = Option::IdPrefix.c_str();
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if (cg.getOutput() == CodeGenerator::TrimmedPHP &&
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cg.usingStream(CodeGenerator::PrimaryStream) &&
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!m_nameExp->is(Expression::KindOfScalarExpression)) {
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cg_printf("${%sdynamic_load($%stmp = (", prefix, prefix);
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m_nameExp->outputPHP(cg, ar);
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cg_printf("), '%stmp'", prefix);
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cg_printf(")}");
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} else {
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m_nameExp->outputPHP(cg, ar);
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}
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}
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cg_printf("(");
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if (m_params) m_params->outputPHP(cg, ar);
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cg_printf(")");
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}
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bool DynamicFunctionCall::preOutputCPP(CodeGenerator &cg, AnalysisResultPtr ar,
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int state) {
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bool nonStatic = !m_class && m_className.empty();
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if (!nonStatic && !m_class && !m_classScope && !isRedeclared()) {
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// call to an unknown class
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// set m_noStatic to avoid pointlessly wrapping the call
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// in STATIC_CLASS_NAME_CALL()
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m_noStatic = true;
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cg.pushCallInfo(-1);
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bool ret = FunctionCall::preOutputCPP(cg, ar, state);
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cg.popCallInfo();
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return ret;
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}
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// Short circuit out if inExpression() returns false
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if (!cg.inExpression()) return true;
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cg.wrapExpressionBegin();
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m_ciTemp = cg.createNewLocalId(shared_from_this());
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if (!m_classScope && !m_className.empty() && m_cppTemp.empty() &&
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!isSelf() && ! isParent() && !isStatic()) {
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// Create a temporary to hold the class name, in case it is not a
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// StaticString.
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m_clsNameTemp = cg.createNewLocalId(shared_from_this());
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cg_printf("CStrRef clsName%d(", m_clsNameTemp);
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cg_printString(m_origClassName, ar, shared_from_this());
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cg_printf(");\n");
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}
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if (m_class) {
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int s = m_class->hasEffect() || m_nameExp->hasEffect() ?
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FixOrder : 0;
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m_class->preOutputCPP(cg, ar, s);
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}
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m_nameExp->preOutputCPP(cg, ar, 0);
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if (nonStatic) {
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cg_printf("const CallInfo *cit%d;\n", m_ciTemp);
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cg_printf("void *vt%d;\n", m_ciTemp);
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cg_printf("get_call_info_or_fail(cit%d, vt%d, ", m_ciTemp, m_ciTemp);
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if (m_nameExp->is(Expression::KindOfSimpleVariable)) {
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m_nameExp->outputCPP(cg, ar);
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} else {
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cg_printf("(");
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m_nameExp->outputCPP(cg, ar);
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cg_printf(")");
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}
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cg_printf(");\n");
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} else {
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cg_printf("MethodCallPackage mcp%d;\n", m_ciTemp);
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if (m_class) {
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if (m_class->is(KindOfScalarExpression)) {
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assert(strcasecmp(dynamic_pointer_cast<ScalarExpression>(m_class)->
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getString().c_str(), "static") == 0);
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cg_printf("CStrRef cls%d = "
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"FrameInjection::GetStaticClassName(fi.getThreadInfo())",
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m_ciTemp);
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} else {
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cg_printf("C%sRef cls%d = ",
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m_class->getActualType() &&
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m_class->getActualType()->is(Type::KindOfString) ?
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"Str" : "Var", m_ciTemp);
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m_class->outputCPP(cg, ar);
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}
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} else if (m_classScope) {
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cg_printf("CStrRef cls%d = ", m_ciTemp);
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cg_printString(m_classScope->getId(), ar, shared_from_this());
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} else {
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cg_printf("CStrRef cls%d = ", m_ciTemp);
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cg_printString(m_className, ar, shared_from_this());
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}
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cg_printf(";\n");
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cg_printf("CStrRef mth%d = ", m_ciTemp);
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if (m_nameExp->is(Expression::KindOfSimpleVariable)) {
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m_nameExp->outputCPP(cg, ar);
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} else {
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cg_printf("(");
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m_nameExp->outputCPP(cg, ar);
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cg_printf(")");
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}
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cg_printf(";\n");
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bool dynamic = true;
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if (!m_class) {
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ClassScopeRawPtr origClass = getOriginalClass();
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if (!origClass) {
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dynamic = false;
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} else {
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FunctionScopeRawPtr origFunc = getOriginalFunction();
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if (origFunc) {
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if (origFunc->isStatic() ||
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(m_classScope != origClass &&
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(m_className.empty() || !origClass->derivesFrom(
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ar, m_className, true, true)))) {
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dynamic = false;
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}
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}
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}
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}
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if (dynamic) {
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if ((m_class && (!m_class->getActualType() ||
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!m_class->getActualType()->is(Type::KindOfString))) ||
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!getOriginalFunction() ||
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!getOriginalClass() ||
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getOriginalFunction()->isStatic()) {
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cg_printf("mcp%d.dynamicNamedCall(cls%d, mth%d);\n",
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m_ciTemp, m_ciTemp, m_ciTemp);
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} else {
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cg_printf("mcp%d.isObj = true;\n", m_ciTemp);
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cg_printf("mcp%d.rootObj = this;\n", m_ciTemp);
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cg_printf("mcp%d.name = &mth%d;\n", m_ciTemp, m_ciTemp);
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cg_printf("o_get_call_info_ex(cls%d, mcp%d);\n", m_ciTemp, m_ciTemp);
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}
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} else {
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cg_printf("mcp%d.staticMethodCall(cls%d, mth%d);\n",
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m_ciTemp,
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m_ciTemp, m_ciTemp);
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if (m_classScope) {
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cg_printf("%s%s.%sget_call_info(mcp%d);\n",
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Option::ClassStaticsCallbackPrefix,
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m_classScope->getId().c_str(),
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Option::ObjectStaticPrefix, m_ciTemp);
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} else if (isRedeclared()) {
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cg_printf("g->%s%s->%sget_call_info(mcp%d);\n",
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Option::ClassStaticsCallbackPrefix, m_className.c_str(),
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Option::ObjectStaticPrefix, m_ciTemp);
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} else {
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not_reached();
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}
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}
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cg_printf("const CallInfo *cit%d = mcp%d.ci;\n", m_ciTemp, m_ciTemp);
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}
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if (m_params && m_params->getCount() > 0) {
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cg.pushCallInfo(m_ciTemp);
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m_params->preOutputCPP(cg, ar, 0);
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cg.popCallInfo();
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}
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if (state & FixOrder) {
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cg.pushCallInfo(m_ciTemp);
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preOutputStash(cg, ar, state);
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cg.popCallInfo();
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}
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return true;
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}
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void DynamicFunctionCall::outputCPPImpl(CodeGenerator &cg,
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AnalysisResultPtr ar) {
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bool method = false;
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if (m_class || !m_className.empty()) {
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if (!m_class && !m_classScope && !isRedeclared()) {
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const string &name = CodeGenerator::EscapeLabel(m_className);
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cg_printf("throw_fatal(\"unknown class %s\")", name.c_str());
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return;
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}
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method = true;
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}
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cg_printf("(cit%d->", m_ciTemp);
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outputDynamicCall(cg, ar, method);
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}
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