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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | 27 |
28 #ifndef V8_CODE_H_ | 28 #ifndef V8_CODE_H_ |
29 #define V8_CODE_H_ | 29 #define V8_CODE_H_ |
30 | 30 |
31 #include "allocation.h" | 31 #include "allocation.h" |
| 32 #include "handles.h" |
| 33 #include "objects.h" |
32 | 34 |
33 namespace v8 { | 35 namespace v8 { |
34 namespace internal { | 36 namespace internal { |
35 | 37 |
36 | 38 |
37 // Wrapper class for passing expected and actual parameter counts as | 39 // Wrapper class for passing expected and actual parameter counts as |
38 // either registers or immediate values. Used to make sure that the | 40 // either registers or immediate values. Used to make sure that the |
39 // caller provides exactly the expected number of parameters to the | 41 // caller provides exactly the expected number of parameters to the |
40 // callee. | 42 // callee. |
41 class ParameterCount BASE_EMBEDDED { | 43 class ParameterCount BASE_EMBEDDED { |
42 public: | 44 public: |
43 explicit ParameterCount(Register reg) | 45 explicit ParameterCount(Register reg) |
44 : reg_(reg), immediate_(0) { } | 46 : reg_(reg), immediate_(0) { } |
45 explicit ParameterCount(int immediate) | 47 explicit ParameterCount(int immediate) |
46 : reg_(no_reg), immediate_(immediate) { } | 48 : reg_(no_reg), immediate_(immediate) { } |
| 49 explicit ParameterCount(Handle<JSFunction> f) |
| 50 : reg_(no_reg), immediate_(f->shared()->formal_parameter_count()) { } |
47 | 51 |
48 bool is_reg() const { return !reg_.is(no_reg); } | 52 bool is_reg() const { return !reg_.is(no_reg); } |
49 bool is_immediate() const { return !is_reg(); } | 53 bool is_immediate() const { return !is_reg(); } |
50 | 54 |
51 Register reg() const { | 55 Register reg() const { |
52 ASSERT(is_reg()); | 56 ASSERT(is_reg()); |
53 return reg_; | 57 return reg_; |
54 } | 58 } |
55 int immediate() const { | 59 int immediate() const { |
56 ASSERT(is_immediate()); | 60 ASSERT(is_immediate()); |
57 return immediate_; | 61 return immediate_; |
58 } | 62 } |
59 | 63 |
60 private: | 64 private: |
61 const Register reg_; | 65 const Register reg_; |
62 const int immediate_; | 66 const int immediate_; |
63 | 67 |
64 DISALLOW_IMPLICIT_CONSTRUCTORS(ParameterCount); | 68 DISALLOW_IMPLICIT_CONSTRUCTORS(ParameterCount); |
65 }; | 69 }; |
66 | 70 |
67 | 71 |
68 } } // namespace v8::internal | 72 } } // namespace v8::internal |
69 | 73 |
70 #endif // V8_CODE_H_ | 74 #endif // V8_CODE_H_ |
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