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finished lab 7, 8, started 9 video 4
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‎9LAB/.clang-format

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‎9LAB/Makefile

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# Ziad Arafat
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# Lab9 MIPS Code Generation from AST.c
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# April 2021
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# FLAGS = -O0 -Wall -Wextra -pedantic
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# the gcc options so I don't have to copy paste them everywhere
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# any time I make changes to them.
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FLAGS = -O0 -Wextra -pedantic
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# Entry point target
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all: lab9
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# Compile all the THINGS!
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lab9: lab9.l lab9.y ast.c ast.h symtable.c symtable.h emit.c emit.h
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lex lab9.l
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yacc -d --verbose --debug lab9.y
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gcc $(FLAGS) y.tab.c lex.yy.c ast.c symtable.c emit.c -o lab9 -lm
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# remove the binary and other generated stuff
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clean:
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rm lab9 lex.yy.c y.tab.c y.tab.h
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# runs valgrind to look for any memory mistakes
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memcheck:
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valgrind ./lab9 -s
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# executes our code to test it's functionality
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test:
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./lab9 < testinput.txt

‎9LAB/README.md

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# CS370 Compilers Lab 7
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## Ziad Arafat - Apr 11 2021
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In this lab we will re-implement our symbol table to check if variable have been
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declared and to check for matching operator sides.
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## How to run
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```
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make clean
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make
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./lab7 < lab7_sub.decaf
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```
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## OUTPUT
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#### lab7_sub.decaf
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```
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LABEL OFFSET SIZE LEVEL TYPE SUBTYPE
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print_int 0 0 0 VOID Extern Method
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LABEL OFFSET SIZE LEVEL TYPE SUBTYPE
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print_string0 0 0 VOID Extern Method
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print_int 0 0 0 VOID Extern Method
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LABEL OFFSET SIZE LEVEL TYPE SUBTYPE
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_T4 18 1 2 INT Scalar
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_T3 17 1 2 INT Scalar
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_T2 16 1 2 INT Scalar
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_T1 15 1 2 INT Scalar
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_T0 14 1 2 INT Scalar
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x 4 10 2 INT Array
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y 3 1 1 INT Scalar
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f 0 0 0 INT Method
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b 2 1 1 INT Scalar
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z 201 1 0 INT Scalar
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Y 101 100 0 BOOL Array
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Z 1 100 0 INT Array
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y 0 1 0 INT Scalar
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print_string0 0 0 VOID Extern Method
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print_int 0 0 0 VOID Extern Method
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LABEL OFFSET SIZE LEVEL TYPE SUBTYPE
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_T9 18 1 2 INT Scalar
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_T8 17 1 2 INT Scalar
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_T7 16 1 2 INT Scalar
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_T6 15 1 2 INT Scalar
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_T5 14 1 2 INT Scalar
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x 4 10 2 INT Array
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y 3 1 1 INT Scalar
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f 0 0 0 INT Method
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b 2 1 1 INT Scalar
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z 201 1 0 INT Scalar
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Y 101 100 0 BOOL Array
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Z 1 100 0 INT Array
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y 0 1 0 INT Scalar
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print_string0 0 0 VOID Extern Method
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print_int 0 0 0 VOID Extern Method
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LABEL OFFSET SIZE LEVEL TYPE SUBTYPE
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y 3 1 1 INT Scalar
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f 0 0 0 INT Method
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b 2 1 1 INT Scalar
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z 201 1 0 INT Scalar
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Y 101 100 0 BOOL Array
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Z 1 100 0 INT Array
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y 0 1 0 INT Scalar
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print_string0 0 0 VOID Extern Method
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print_int 0 0 0 VOID Extern Method
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LABEL OFFSET SIZE LEVEL TYPE SUBTYPE
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_T15 9 1 1 INT Scalar
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_T14 8 1 1 INT Scalar
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_T13 7 1 1 INT Scalar
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_T12 6 1 1 INT Scalar
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_T11 5 1 1 INT Scalar
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_T10 4 1 1 INT Scalar
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main 0 0 0 INT Method
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arg1 3 1 1 INT Scalar
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arg2 2 1 1 INT Scalar
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f 0 19 0 INT Method
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z 201 1 0 INT Scalar
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Y 101 100 0 BOOL Array
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Z 1 100 0 INT Array
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y 0 1 0 INT Scalar
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print_string0 0 0 VOID Extern Method
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print_int 0 0 0 VOID Extern Method
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Parsing completed
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LABEL OFFSET SIZE LEVEL TYPE SUBTYPE
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main 0 10 0 INT Method
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f 0 19 0 INT Method
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z 201 1 0 INT Scalar
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Y 101 100 0 BOOL Array
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Z 1 100 0 INT Array
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y 0 1 0 INT Scalar
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print_string0 0 0 VOID Extern Method
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print_int 0 0 0 VOID Extern Method
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EXTERN FUNC print_int
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EXTERN Type INT
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END EXTERN with Type:
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VOID EXTERN FUNC print_string
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EXTERN Type STRING
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END EXTERN with Type:
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VOID Package : foo
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Variable y with type INT = 7
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Variable Z[100] with type INT
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Variable Y[100] with type BOOLEAN
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Variable z with type INT = 10
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METHOD FUNCTION 'f' with type INT
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(
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Method ARGb INT
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)
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BLOCK STATEMENT
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Variable y with type INT
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BLOCK STATEMENT
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Variable x[10] with type INT
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ASSIGNMENT STATEMENT
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Variable Left x
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[
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EXPR -
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EXPR +
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CONSTANT INTEGER 2
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CONSTANT INTEGER 3
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CONSTANT INTEGER 5
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]
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EXPR +
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Variable Right b
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METHOD CALL name: f
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(
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METHOD ARG
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EXPR +
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CONSTANT INTEGER 5
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EXPR *
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Variable Right x
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[
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CONSTANT INTEGER 2
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]
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Variable Right b
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)
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BLOCK STATEMENT
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Variable x[10] with type INT
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ASSIGNMENT STATEMENT
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Variable Left x
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[
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EXPR -
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EXPR +
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CONSTANT INTEGER 2
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CONSTANT INTEGER 3
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CONSTANT INTEGER 5
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]
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EXPR +
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Variable Right b
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METHOD CALL name: f
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(
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METHOD ARG
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EXPR +
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CONSTANT INTEGER 5
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EXPR *
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Variable Right x
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[
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CONSTANT INTEGER 2
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]
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Variable Right b
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)
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METHOD FUNCTION 'main' with type INT
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(
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Method ARGarg1 INT
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Method ARGarg2 INT
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)
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BLOCK STATEMENT
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METHOD CALL name: print_int
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(
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METHOD ARG
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METHOD CALL name: f
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(
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METHOD ARG
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EXPR +
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EXPR -
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EXPR +
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Variable Right arg1
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Variable Right arg2
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Variable Right z
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Variable Right y
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)
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)
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METHOD CALL name: print_int
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(
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METHOD ARG
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METHOD CALL name: f
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(
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METHOD ARG
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EXPR +
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EXPR -
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EXPR +
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Variable Right arg1
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Variable Right arg2
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Variable Right z
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Variable Right y
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)
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)
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METHOD CALL name: print_string
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(
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METHOD ARG
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CONSTANT STRING "hello world\n"
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)
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Finished printing AST
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```

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