1.tokens
"int" "int"
<SPACES> " "
<IDENTIFIER> "global_a"
<SPACES> " "
"=" "="
<SPACES> " "
<INTEGER> "5"
";" ";"
<SPACES> " "
"long" "long"
<SPACES> " "
<IDENTIFIER> "global_b"
";" ";"
<SPACES> " "
"char" "char"
<SPACES> " "
"*" "*"
<SPACES> " "
<IDENTIFIER> "global_c"
<SPACES> " "
"=" "="
<SPACES> " "
""" ""HelloWorld!""
";" ";"
<SPACES> " "
"int" "int"
"[" "["
<INTEGER> "5"
"]" "]"
<SPACES> " "
<IDENTIFIER> "global_array"
";" ";"
<SPACES> " "
"struct" "struct"
<SPACES> " "
<IDENTIFIER> "point"
<SPACES> " "
<IDENTIFIER> "global_struct"
";" ";"
<SPACES> " "
"struct" "struct"
<SPACES> " "
<IDENTIFIER> "point"
"{" "{"
<SPACES> " "
"int" "int"
<SPACES> " "
<IDENTIFIER> "x"
";" ";"
<SPACES> " "
"int" "int"
<SPACES> " "
<IDENTIFIER> "y"
";" ";"
<SPACES> " "
"}" "}"
";" ";"
<SPACES> " "
"int" "int"
<SPACES> " "
<IDENTIFIER> "func"
"(" "("
"int" "int"
<SPACES> " "
<IDENTIFIER> "m"
"," ","
<SPACES> " "
"int" "int"
<SPACES> " "
<IDENTIFIER> "n"
")" ")"
"{" "{"
<SPACES> " "
"int" "int"
<SPACES> " "
<IDENTIFIER> "local_a"
<SPACES> " "
"=" "="
<SPACES> " "
<INTEGER> "4"
";" ";"
<SPACES> " "
<IDENTIFIER> "local_a"
<SPACES> " "
"=" "="
<SPACES> " "
<IDENTIFIER> "m"
";" ";"
<SPACES> " "
<IDENTIFIER> "local_a"
<SPACES> " "
"=" "="
<SPACES> " "
<IDENTIFIER> "n"
";" ";"
<SPACES> " "
"return" "return"
<SPACES> " "
<IDENTIFIER> "local_a"
";" ";"
<SPACES> " "
"}" "}"
<SPACES> " "
"int" "int"
<SPACES> " "
<IDENTIFIER> "main"
"(" "("
"int" "int"
<SPACES> " "
<IDENTIFIER> "argc"
"," ","
<SPACES> " "
"char" "char"
"*" "*"
"*" "*"
<SPACES> " "
<IDENTIFIER> "argv"
")" ")"
"{" "{"
<SPACES> " "
<IDENTIFIER> "func"
"(" "("
<INTEGER> "2"
"," ","
<INTEGER> "3"
")" ")"
";" ";"
<SPACES> " "
"return" "return"
<SPACES> " "
<INTEGER> "0"
";" ";"
<SPACES> " "
"}" "}"
<SPACES> " "
<EOF> ""
2.抽象语法树
<<AST>> (helloworld.cb:1)
variables:
<<DefinedVariable>> (helloworld.cb:1)
name: "global_a"
isPrivate: false
typeNode: int
initializer:
<<IntegerLiteralNode>> (helloworld.cb:1)
typeNode: int
value: 5
<<DefinedVariable>> (helloworld.cb:2)
name: "global_b"
isPrivate: false
typeNode: long
initializer: null
<<DefinedVariable>> (helloworld.cb:3)
name: "global_c"
isPrivate: false
typeNode: char*
initializer:
<<StringLiteralNode>> (helloworld.cb:3)
value: "HelloWorld!"
<<DefinedVariable>> (helloworld.cb:4)
name: "global_array"
isPrivate: false
typeNode: int[5]
initializer: null
<<DefinedVariable>> (helloworld.cb:5)
name: "global_struct"
isPrivate: false
typeNode: struct point
initializer: null
functions:
<<DefinedFunction>> (helloworld.cb:10)
name: "func"
isPrivate: false
params:
parameters:
<<Parameter>> (helloworld.cb:10)
name: "m"
typeNode: int
<<Parameter>> (helloworld.cb:10)
name: "n"
typeNode: int
body:
<<BlockNode>> (helloworld.cb:10)
variables:
<<DefinedVariable>> (helloworld.cb:11)
name: "local_a"
isPrivate: false
typeNode: int
initializer:
<<IntegerLiteralNode>> (helloworld.cb:11)
typeNode: int
value: 4
stmts:
<<ExprStmtNode>> (helloworld.cb:12)
expr:
<<AssignNode>> (helloworld.cb:12)
lhs:
<<VariableNode>> (helloworld.cb:12)
name: "local_a"
rhs:
<<VariableNode>> (helloworld.cb:12)
name: "m"
<<ExprStmtNode>> (helloworld.cb:13)
expr:
<<AssignNode>> (helloworld.cb:13)
lhs:
<<VariableNode>> (helloworld.cb:13)
name: "local_a"
rhs:
<<VariableNode>> (helloworld.cb:13)
name: "n"
<<ReturnNode>> (helloworld.cb:14)
expr:
<<VariableNode>> (helloworld.cb:14)
name: "local_a"
<<DefinedFunction>> (helloworld.cb:16)
name: "main"
isPrivate: false
params:
parameters:
<<Parameter>> (helloworld.cb:16)
name: "argc"
typeNode: int
<<Parameter>> (helloworld.cb:16)
name: "argv"
typeNode: char**
body:
<<BlockNode>> (helloworld.cb:16)
variables:
stmts:
<<ExprStmtNode>> (helloworld.cb:17)
expr:
<<FuncallNode>> (helloworld.cb:17)
expr:
<<VariableNode>> (helloworld.cb:17)
name: "func"
args:
<<IntegerLiteralNode>> (helloworld.cb:17)
typeNode: int
value: 2
<<IntegerLiteralNode>> (helloworld.cb:17)
typeNode: int
value: 3
<<ReturnNode>> (helloworld.cb:18)
expr:
<<IntegerLiteralNode>> (helloworld.cb:18)
typeNode: int
value: 0
3.中间代码
<<IR>> (helloworld.cb:1)
variables:
<<DefinedVariable>> (helloworld.cb:1)
name: global_a
isPrivate: false
type: int
initializer:
<<Int>>
type: INT32
value: 5
<<DefinedVariable>> (helloworld.cb:2)
name: global_b
isPrivate: false
type: long
initializer: null
<<DefinedVariable>> (helloworld.cb:3)
name: global_c
isPrivate: false
type: char*
initializer:
<<Str>>
type: INT32
entry: net.loveruby.cflat.entity.ConstantEntry@13fd745
<<DefinedVariable>> (helloworld.cb:4)
name: global_array
isPrivate: false
type: int[5]
initializer: null
<<DefinedVariable>> (helloworld.cb:5)
name: global_struct
isPrivate: false
type: struct point
initializer: null
functions:
<<DefinedFunction>> (helloworld.cb:10)
name: func
isPrivate: false
type: int(int, int)
body:
<<Assign>> (helloworld.cb:11)
lhs:
<<Addr>>
type: INT32
entity: local_a
rhs:
<<Int>>
type: INT32
value: 4
<<Assign>> (helloworld.cb:12)
lhs:
<<Addr>>
type: INT32
entity: local_a
rhs:
<<Var>>
type: INT32
entity: m
<<Assign>> (helloworld.cb:13)
lhs:
<<Addr>>
type: INT32
entity: local_a
rhs:
<<Var>>
type: INT32
entity: n
<<Return>> (helloworld.cb:14)
expr:
<<Var>>
type: INT32
entity: local_a
<<DefinedFunction>> (helloworld.cb:16)
name: main
isPrivate: false
type: int(int, char**)
body:
<<ExprStmt>> (helloworld.cb:17)
expr:
<<Call>>
type: INT32
expr:
<<Addr>>
type: INT32
entity: func
args:
<<Int>>
type: INT32
value: 2
<<Int>>
type: INT32
value: 3
<<Return>> (helloworld.cb:18)
expr:
<<Int>>
type: INT32
value: 0
4.汇编代码
.file "helloworld.cb"
.data
.globl global_a
.align 4
.type global_a,@object
.size global_a,4
global_a:
.long 5
.globl global_c
.align 4
.type global_c,@object
.size global_c,4
global_c:
.long .LC0
.section .rodata
.LC0:
.string "HelloWorld!"
.text
.globl func
.type func,@function
func:
pushl %ebp
movl %esp, %ebp
subl $4, %esp
movl $4, %eax
movl %eax, -4(%ebp)
movl 8(%ebp), %eax
movl %eax, -4(%ebp)
movl 12(%ebp), %eax
movl %eax, -4(%ebp)
movl -4(%ebp), %eax
jmp .L0
.L0:
movl %ebp, %esp
popl %ebp
ret
.size func,.-func
.globl main
.type main,@function
main:
pushl %ebp
movl %esp, %ebp
movl $3, %eax
pushl %eax
movl $2, %eax
pushl %eax
call func
addl $8, %esp
movl $0, %eax
jmp .L1
.L1:
movl %ebp, %esp
popl %ebp
ret
.size main,.-main
.comm global_b,4,4
.comm global_array,20,4
.comm global_struct,8,8