0ce4eab1b2
There were two separate implementations of the function 'BuildBoilerplate' that is used to compile function declarations and function literals. The implementations did not do exactly the same thing. In particular, one ignored the flag --lazy. Combine the two implementations. Review URL: http://codereview.chromium.org/360011 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3218 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
108 lines
4.4 KiB
C++
108 lines
4.4 KiB
C++
// Copyright 2006-2008 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef V8_COMPILER_H_
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#define V8_COMPILER_H_
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#include "frame-element.h"
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#include "parser.h"
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#include "zone.h"
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namespace v8 {
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namespace internal {
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// The V8 compiler
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//
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// General strategy: Source code is translated into an anonymous function w/o
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// parameters which then can be executed. If the source code contains other
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// functions, they will be compiled and allocated as part of the compilation
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// of the source code.
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// Please note this interface returns function boilerplates.
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// This means you need to call Factory::NewFunctionFromBoilerplate
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// before you have a real function with context.
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class Compiler : public AllStatic {
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public:
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enum ValidationState { VALIDATE_JSON, DONT_VALIDATE_JSON };
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// All routines return a JSFunction.
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// If an error occurs an exception is raised and
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// the return handle contains NULL.
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// Compile a String source within a context.
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static Handle<JSFunction> Compile(Handle<String> source,
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Handle<Object> script_name,
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int line_offset, int column_offset,
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v8::Extension* extension,
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ScriptDataImpl* script_Data);
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// Compile a String source within a context for Eval.
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static Handle<JSFunction> CompileEval(Handle<String> source,
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Handle<Context> context,
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bool is_global,
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ValidationState validation);
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// Compile from function info (used for lazy compilation). Returns
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// true on success and false if the compilation resulted in a stack
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// overflow.
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static bool CompileLazy(Handle<SharedFunctionInfo> shared, int loop_nesting);
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// Compile a function boilerplate object (the function is possibly
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// lazily compiled). Called recursively from a backend code
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// generator 'caller' to build the boilerplate.
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static Handle<JSFunction> BuildBoilerplate(FunctionLiteral* node,
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Handle<Script> script,
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AstVisitor* caller);
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// Set the function info for a newly compiled function.
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static void SetFunctionInfo(Handle<JSFunction> fun,
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FunctionLiteral* lit,
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bool is_toplevel,
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Handle<Script> script);
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};
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// During compilation we need a global list of handles to constants
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// for frame elements. When the zone gets deleted, we make sure to
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// clear this list of handles as well.
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class CompilationZoneScope : public ZoneScope {
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public:
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explicit CompilationZoneScope(ZoneScopeMode mode) : ZoneScope(mode) { }
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virtual ~CompilationZoneScope() {
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if (ShouldDeleteOnExit()) {
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FrameElement::ClearConstantList();
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Result::ClearConstantList();
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}
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}
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};
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} } // namespace v8::internal
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#endif // V8_COMPILER_H_
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