Initial implementation of lpython builtin module

grammar/ASR.asdl

@@ -83,7 +83,7 @@ symbol
     = Program(symbol_table symtab, identifier name, identifier* dependencies,
         stmt* body)
     | Module(symbol_table symtab, identifier name, identifier* dependencies,
-        bool loaded_from_mod)
+        bool loaded_from_mod, bool intrinsic)
     | Subroutine(symbol_table symtab, identifier name, expr* args, stmt* body,
         abi abi, access access, deftype deftype, string? bindc_name, bool pure,
         bool module)

integration_tests/run_tests.py

@@ -13,6 +13,8 @@
     "modules_01.py",
     #"modules_02.py",
     "test_math.py",
+    #"test_builtin.py",
+    "test_builtin_abs.py",
 ]
 
 def main():

integration_tests/test_builtin.py

@@ -0,0 +1,20 @@
+from ltypes import i32
+
+def test_ord():
+    i: i32
+    s: str
+    s = "1"
+    i = ord(s)
+    assert i == 49
+
+
+#def test_chr():
+#    i: i32
+#    i = 48
+#    s: str
+#    s = chr(i)
+#    assert s == "0"
+
+
+test_ord()
+#test_chr()

integration_tests/test_builtin_abs.py

@@ -0,0 +1,11 @@
+from ltypes import f64
+
+def test_abs():
+    x: f64
+    x = 5.5
+    assert abs(x) == 5.5
+    x = -5.5
+    assert abs(x) == 5.5
+
+
+test_abs()

src/lpython/pickle.cpp

@@ -236,7 +236,7 @@ class ASRPickleVisitor :
     }
     void visit_Module(const ASR::Module_t &x) {
         if (!show_intrinsic_modules &&
-                    startswith(x.m_name, "lfortran_intrinsic_")) {
+                    (x.m_intrinsic || startswith(x.m_name, "lfortran_intrinsic_"))) {
             s.append("(");
             if (use_colors) {
                 s.append(color(style::bold));

src/lpython/semantics/ast_symboltable_visitor.cpp

@@ -160,7 +160,7 @@ class SymbolTableVisitor : public CommonVisitor<SymbolTableVisitor> {
                                             /* a_name */ s2c(al, to_lower(x.m_name)),
                                             nullptr,
                                             0,
-                                            false);
+                                            false, false);
         current_module_sym = ASR::down_cast<ASR::symbol_t>(tmp0);
         if( x.class_type == AST::modType::Submodule ) {
             std::string rl_path = get_runtime_library_dir();

src/runtime/lpython_builtin.py

@@ -0,0 +1,40 @@
+from ltypes import i32
+#from sys import exit
+
+
+def ord(s: str) -> i32:
+    """
+    Returns an integer representing the Unicode code
+    point of a given unicode character. This is the inverse of `chr()`.
+    """
+    if s == '0':
+        return 48
+    elif s == '1':
+        return 49
+#    else:
+#        exit(1)
+
+
+def chr(i: i32) -> str:
+    """
+    Returns the string representing a unicode character from
+    the given Unicode code point. This is the inverse of `ord()`.
+    """
+    if i == 48:
+        return '0'
+    elif i == 49:
+        return '1'
+#    else:
+#        exit(1)
+
+
+# This is an implementation for f64.
+# TODO: implement abs() as a generic procedure, and implement for all types
+def abs(x: f64) -> f64:
+    """
+    Return the absolute value of `x`.
+    """
+    if x >= 0.0:
+        return x
+    else:
+        return -x

tests/constants1.py

@@ -19,15 +19,15 @@ def test_ord_chr():
 
 
 def test_abs():
-    a: i32
-    a = abs(5)
-    a = abs(-500)
-    a = abs(False)
-    a = abs(True)
+    # a: i32
+    # a = abs(5)
+    # a = abs(-500)
+    # a = abs(False)
+    # a = abs(True)
     b: f32
     b = abs(3.45)
     b = abs(-5346.34)
-    b = abs(complex(3.45, 5.6))
+    # b = abs(complex(3.45, 5.6))
 
 
 def test_len():

tests/reference/asr-constants1-5828e8a.json

@@ -2,12 +2,12 @@
     "basename": "asr-constants1-5828e8a",
     "cmd": "lpython --show-asr --no-color {infile} -o {outfile}",
     "infile": "tests/constants1.py",
-    "infile_hash": "96e60b5d3b6cb09a1198932629c9974ac3cf8854e3b1c7ba8959ea83",
+    "infile_hash": "6adf0c1cf8ec1667bf19edaf62d087483e6229370ed0f10a207ee0b4",
     "outfile": null,
     "outfile_hash": null,
     "stdout": "asr-constants1-5828e8a.stdout",
-    "stdout_hash": "0bf1393bd5bfba3cb0593f45cdd27141825b57fa5e2e547ef7a84875",
+    "stdout_hash": "82599c6a0114feef56f5e9198dd5cfbd06d87638efc14126af92a89e",
     "stderr": null,
     "stderr_hash": null,
     "returncode": 0
-}
+}

tests/reference/asr-constants1-5828e8a.stdout

@@ -1 +1 @@
-(TranslationUnit (SymbolTable 1 {main_program: (Program (SymbolTable 12 {}) main_program [] []), test_abs: (Subroutine (SymbolTable 4 {a: (Variable 4 a Local () () Default (Integer 4 []) Source Public Required .false.), b: (Variable 4 b Local () () Default (Real 4 []) Source Public Required .false.)}) test_abs [] [(= (Var 4 a) (ConstantInteger 5 (Integer 4 [])) ()) (= (Var 4 a) (ConstantInteger 500 (Integer 4 [])) ()) (= (Var 4 a) (ConstantInteger 0 (Integer 4 [])) ()) (= (Var 4 a) (ConstantInteger 1 (Integer 4 [])) ()) (= (Var 4 b) (ConstantReal 3.450000 (Real 8 [])) ()) (= (Var 4 b) (ConstantReal 5346.340000 (Real 8 [])) ()) (= (Var 4 b) (ConstantReal 6.577424 (Real 8 [])) ())] Source Public Implementation () .false. .false.), test_bool: (Subroutine (SymbolTable 6 {a: (Variable 6 a Local () () Default (Logical 1 []) Source Public Required .false.)}) test_bool [] [(= (Var 6 a) (ConstantLogical .false. (Logical 1 [])) ()) (= (Var 6 a) (ConstantLogical .true. (Logical 1 [])) ()) (= (Var 6 a) (ConstantLogical .false. (Logical 1 [])) ()) (= (Var 6 a) (ConstantLogical .false. (Logical 1 [])) ()) (Assert (Compare (Var 6 a) Eq (ConstantLogical .false. (Logical 1 [])) (Logical 4 []) () ()) ()) (= (Var 6 a) (ConstantLogical .true. (Logical 1 [])) ()) (= (Var 6 a) (ConstantLogical .true. (Logical 1 [])) ()) (Assert (Compare (Var 6 a) Eq (ConstantLogical .true. (Logical 1 [])) (Logical 4 []) () ()) ())] Source Public Implementation () .false. .false.), test_boz: (Subroutine (SymbolTable 2 {b: (Variable 2 b Local () () Default (Character 1 -2 () []) Source Public Required .false.)}) test_boz [] [(= (Var 2 b) (ConstantString "0b101" (Character 1 1 () [])) ()) (= (Var 2 b) (ConstantString "0b1000000" (Character 1 1 () [])) ()) (= (Var 2 b) (ConstantString "-0b1000010110" (Character 1 1 () [])) ()) (= (Var 2 b) (ConstantString "0o10" (Character 1 1 () [])) ()) (= (Var 2 b) (ConstantString "0o70" (Character 1 1 () [])) ()) (= (Var 2 b) (ConstantString "-0o1026" (Character 1 1 () [])) ()) (= (Var 2 b) (ConstantString "0x2a" (Character 1 1 () [])) ()) (= (Var 2 b) (ConstantString "0xc0ffee" (Character 1 1 () [])) ()) (= (Var 2 b) (ConstantString "-0x216" (Character 1 1 () [])) ())] Source Public Implementation () .false. .false.), test_callable: (Subroutine (SymbolTable 8 {a: (Variable 8 a Local () () Default (Logical 1 []) Source Public Required .false.), b: (Variable 8 b Local () () Default (Integer 4 []) Source Public Required .false.)}) test_callable [] [(= (Var 8 b) (ConstantInteger 2 (Integer 4 [])) ()) (= (Var 8 a) (ConstantLogical .true. (Logical 1 [])) ()) (Assert (Compare (Var 8 a) Eq (ConstantLogical .true. (Logical 1 [])) (Logical 4 []) () ()) ()) (= (Var 8 a) (ConstantLogical .false. (Logical 1 [])) ()) (Assert (Compare (Var 8 a) Eq (ConstantLogical .false. (Logical 1 [])) (Logical 4 []) () ()) ()) (= (Var 8 a) (ConstantLogical .false. (Logical 1 [])) ()) (Assert (Compare (Var 8 a) Eq (ConstantLogical .false. (Logical 1 [])) (Logical 4 []) () ()) ())] Source Public Implementation () .false. .false.), test_divmod: (Subroutine (SymbolTable 11 {a: (Variable 11 a Local () () Default (Integer 4 []) Source Public Required .false.)}) test_divmod [] [(= (Var 11 a) (ConstantTuple [(ConstantInteger 3 (Integer 4 [])) (ConstantInteger 0 (Integer 4 []))] (Tuple [(Integer 4 []) (Integer 4 [])])) ()) (= (Var 11 a) (ConstantTuple [(ConstantInteger -3 (Integer 4 [])) (ConstantInteger 0 (Integer 4 []))] (Tuple [(Integer 4 []) (Integer 4 [])])) ()) (= (Var 11 a) (ConstantTuple [(ConstantInteger 1 (Integer 4 [])) (ConstantInteger 0 (Integer 4 []))] (Tuple [(Integer 4 []) (Integer 4 [])])) ()) (= (Var 11 a) (ConstantTuple [(ConstantInteger 0 (Integer 4 [])) (ConstantInteger 4 (Integer 4 []))] (Tuple [(Integer 4 []) (Integer 4 [])])) ()) (= (Var 11 a) (ConstantTuple [(ConstantInteger 0 (Integer 4 [])) (ConstantInteger 0 (Integer 4 []))] (Tuple [(Integer 4 []) (Integer 4 [])])) ())] Source Public Implementation () .false. .false.), test_float: (Subroutine (SymbolTable 10 {a: (Variable 10 a Local () () Default (Real 8 []) Source Public Required .false.)}) test_float [] [(= (Var 10 a) (ConstantReal 0.000000 (Real 8 [])) ()) (= (Var 10 a) (ConstantReal 4.560000 (Real 8 [])) ()) (= (Var 10 a) (ConstantReal 5.000000 (Real 8 [])) ()) (= (Var 10 a) (ConstantReal -1.000000 (Real 8 [])) ()) (= (Var 10 a) (ConstantReal 1.000000 (Real 8 [])) ()) (= (Var 10 a) (ConstantReal 0.000000 (Real 8 [])) ()) (= (Var 10 a) (ConstantReal 5346.000000 (Real 8 [])) ()) (= (Var 10 a) (ConstantReal 423.533997 (Real 8 [])) ())] Source Public Implementation () .false. .false.), test_int: (Subroutine (SymbolTable 9 {a: (Variable 9 a Local () () Default (Integer 8 []) Source Public Required .false.)}) test_int [] [(= (Var 9 a) (ImplicitCast (ConstantInteger 0 (Integer 4 [])) IntegerToInteger (Integer 8 []) ()) ()) (= (Var 9 a) (ImplicitCast (ConstantInteger 4 (Integer 4 [])) IntegerToInteger (Integer 8 []) ()) ()) (= (Var 9 a) (ImplicitCast (ConstantInteger 5 (Integer 4 [])) IntegerToInteger (Integer 8 []) ()) ()) (= (Var 9 a) (ImplicitCast (ConstantInteger -5 (Integer 4 [])) IntegerToInteger (Integer 8 []) ()) ()) (= (Var 9 a) (ImplicitCast (ConstantInteger 1 (Integer 4 [])) IntegerToInteger (Integer 8 []) ()) ()) (= (Var 9 a) (ImplicitCast (ConstantInteger 0 (Integer 4 [])) IntegerToInteger (Integer 8 []) ()) ()) (= (Var 9 a) (ImplicitCast (ConstantInteger 5346 (Integer 4 [])) IntegerToInteger (Integer 8 []) ()) ())] Source Public Implementation () .false. .false.), test_len: (Subroutine (SymbolTable 5 {a: (Variable 5 a Local () () Default (Integer 4 []) Source Public Required .false.)}) test_len [] [(= (Var 5 a) (ConstantInteger 0 (Integer 4 [])) ()) (= (Var 5 a) (ConstantInteger 4 (Integer 4 [])) ()) (= (Var 5 a) (ConstantInteger 14 (Integer 4 [])) ()) (= (Var 5 a) (ConstantInteger 3 (Integer 4 [])) ()) (= (Var 5 a) (ConstantInteger 2 (Integer 4 [])) ()) (= (Var 5 a) (ConstantInteger 3 (Integer 4 [])) ()) (= (Var 5 a) (ConstantInteger 2 (Integer 4 [])) ()) (= (Var 5 a) (ConstantInteger 3 (Integer 4 [])) ()) (= (Var 5 a) (ConstantInteger 3 (Integer 4 [])) ())] Source Public Implementation () .false. .false.), test_ord_chr: (Subroutine (SymbolTable 3 {a: (Variable 3 a Local () () Default (Integer 4 []) Source Public Required .false.), s: (Variable 3 s Local () () Default (Character 1 -2 () []) Source Public Required .false.)}) test_ord_chr [] [(= (Var 3 a) (ConstantInteger 53 (Integer 4 [])) ()) (= (Var 3 s) (ConstantString "+" (Character 1 1 () [])) ())] Source Public Implementation () .false. .false.), test_str: (Subroutine (SymbolTable 7 {s: (Variable 7 s Local () () Default (Character 1 -2 () []) Source Public Required .false.)}) test_str [] [(= (Var 7 s) (ConstantString "" (Character 1 1 () [])) ()) (= (Var 7 s) (ConstantString "5" (Character 1 1 () [])) ()) (= (Var 7 s) (ConstantString "-4" (Character 1 1 () [])) ()) (= (Var 7 s) (ConstantString "5.600000" (Character 1 1 () [])) ()) (= (Var 7 s) (ConstantString "True" (Character 1 1 () [])) ()) (= (Var 7 s) (ConstantString "False" (Character 1 1 () [])) ()) (= (Var 7 s) (ConstantString "5346" (Character 1 1 () [])) ())] Source Public Implementation () .false. .false.)}) [])
+(TranslationUnit (SymbolTable 1 {lpython_builtin: (IntrinsicModule lpython_builtin), main_program: (Program (SymbolTable 17 {}) main_program [] []), test_abs: (Subroutine (SymbolTable 4 {abs: (ExternalSymbol 4 abs 13 abs lpython_builtin [] abs Public), b: (Variable 4 b Local () () Default (Real 4 []) Source Public Required .false.)}) test_abs [] [(= (Var 4 b) (FunctionCall 4 abs () [(ConstantReal 3.450000 (Real 8 []))] [] (Real 8 []) () ()) ()) (= (Var 4 b) (FunctionCall 4 abs () [(UnaryOp USub (ConstantReal 5346.340000 (Real 8 [])) (Real 8 []) (ConstantReal -5346.340000 (Real 8 [])))] [] (Real 8 []) () ()) ())] Source Public Implementation () .false. .false.), test_bool: (Subroutine (SymbolTable 6 {a: (Variable 6 a Local () () Default (Logical 1 []) Source Public Required .false.)}) test_bool [] [(= (Var 6 a) (ConstantLogical .false. (Logical 1 [])) ()) (= (Var 6 a) (ConstantLogical .true. (Logical 1 [])) ()) (= (Var 6 a) (ConstantLogical .false. (Logical 1 [])) ()) (= (Var 6 a) (ConstantLogical .false. (Logical 1 [])) ()) (Assert (Compare (Var 6 a) Eq (ConstantLogical .false. (Logical 1 [])) (Logical 4 []) () ()) ()) (= (Var 6 a) (ConstantLogical .true. (Logical 1 [])) ()) (= (Var 6 a) (ConstantLogical .true. (Logical 1 [])) ()) (Assert (Compare (Var 6 a) Eq (ConstantLogical .true. (Logical 1 [])) (Logical 4 []) () ()) ())] Source Public Implementation () .false. .false.), test_boz: (Subroutine (SymbolTable 2 {b: (Variable 2 b Local () () Default (Character 1 -2 () []) Source Public Required .false.)}) test_boz [] [(= (Var 2 b) (ConstantString "0b101" (Character 1 1 () [])) ()) (= (Var 2 b) (ConstantString "0b1000000" (Character 1 1 () [])) ()) (= (Var 2 b) (ConstantString "-0b1000010110" (Character 1 1 () [])) ()) (= (Var 2 b) (ConstantString "0o10" (Character 1 1 () [])) ()) (= (Var 2 b) (ConstantString "0o70" (Character 1 1 () [])) ()) (= (Var 2 b) (ConstantString "-0o1026" (Character 1 1 () [])) ()) (= (Var 2 b) (ConstantString "0x2a" (Character 1 1 () [])) ()) (= (Var 2 b) (ConstantString "0xc0ffee" (Character 1 1 () [])) ()) (= (Var 2 b) (ConstantString "-0x216" (Character 1 1 () [])) ())] Source Public Implementation () .false. .false.), test_callable: (Subroutine (SymbolTable 8 {a: (Variable 8 a Local () () Default (Logical 1 []) Source Public Required .false.), b: (Variable 8 b Local () () Default (Integer 4 []) Source Public Required .false.)}) test_callable [] [(= (Var 8 b) (ConstantInteger 2 (Integer 4 [])) ()) (= (Var 8 a) (ConstantLogical .true. (Logical 1 [])) ()) (Assert (Compare (Var 8 a) Eq (ConstantLogical .true. (Logical 1 [])) (Logical 4 []) () ()) ()) (= (Var 8 a) (ConstantLogical .false. (Logical 1 [])) ()) (Assert (Compare (Var 8 a) Eq (ConstantLogical .false. (Logical 1 [])) (Logical 4 []) () ()) ()) (= (Var 8 a) (ConstantLogical .false. (Logical 1 [])) ()) (Assert (Compare (Var 8 a) Eq (ConstantLogical .false. (Logical 1 [])) (Logical 4 []) () ()) ())] Source Public Implementation () .false. .false.), test_divmod: (Subroutine (SymbolTable 11 {a: (Variable 11 a Local () () Default (Integer 4 []) Source Public Required .false.)}) test_divmod [] [(= (Var 11 a) (ConstantTuple [(ConstantInteger 3 (Integer 4 [])) (ConstantInteger 0 (Integer 4 []))] (Tuple [(Integer 4 []) (Integer 4 [])])) ()) (= (Var 11 a) (ConstantTuple [(ConstantInteger -3 (Integer 4 [])) (ConstantInteger 0 (Integer 4 []))] (Tuple [(Integer 4 []) (Integer 4 [])])) ()) (= (Var 11 a) (ConstantTuple [(ConstantInteger 1 (Integer 4 [])) (ConstantInteger 0 (Integer 4 []))] (Tuple [(Integer 4 []) (Integer 4 [])])) ()) (= (Var 11 a) (ConstantTuple [(ConstantInteger 0 (Integer 4 [])) (ConstantInteger 4 (Integer 4 []))] (Tuple [(Integer 4 []) (Integer 4 [])])) ()) (= (Var 11 a) (ConstantTuple [(ConstantInteger 0 (Integer 4 [])) (ConstantInteger 0 (Integer 4 []))] (Tuple [(Integer 4 []) (Integer 4 [])])) ())] Source Public Implementation () .false. .false.), test_float: (Subroutine (SymbolTable 10 {a: (Variable 10 a Local () () Default (Real 8 []) Source Public Required .false.)}) test_float [] [(= (Var 10 a) (ConstantReal 0.000000 (Real 8 [])) ()) (= (Var 10 a) (ConstantReal 4.560000 (Real 8 [])) ()) (= (Var 10 a) (ConstantReal 5.000000 (Real 8 [])) ()) (= (Var 10 a) (ConstantReal -1.000000 (Real 8 [])) ()) (= (Var 10 a) (ConstantReal 1.000000 (Real 8 [])) ()) (= (Var 10 a) (ConstantReal 0.000000 (Real 8 [])) ()) (= (Var 10 a) (ConstantReal 5346.000000 (Real 8 [])) ()) (= (Var 10 a) (ConstantReal 423.533997 (Real 8 [])) ())] Source Public Implementation () .false. .false.), test_int: (Subroutine (SymbolTable 9 {a: (Variable 9 a Local () () Default (Integer 8 []) Source Public Required .false.)}) test_int [] [(= (Var 9 a) (ImplicitCast (ConstantInteger 0 (Integer 4 [])) IntegerToInteger (Integer 8 []) ()) ()) (= (Var 9 a) (ImplicitCast (ConstantInteger 4 (Integer 4 [])) IntegerToInteger (Integer 8 []) ()) ()) (= (Var 9 a) (ImplicitCast (ConstantInteger 5 (Integer 4 [])) IntegerToInteger (Integer 8 []) ()) ()) (= (Var 9 a) (ImplicitCast (ConstantInteger -5 (Integer 4 [])) IntegerToInteger (Integer 8 []) ()) ()) (= (Var 9 a) (ImplicitCast (ConstantInteger 1 (Integer 4 [])) IntegerToInteger (Integer 8 []) ()) ()) (= (Var 9 a) (ImplicitCast (ConstantInteger 0 (Integer 4 [])) IntegerToInteger (Integer 8 []) ()) ()) (= (Var 9 a) (ImplicitCast (ConstantInteger 5346 (Integer 4 [])) IntegerToInteger (Integer 8 []) ()) ())] Source Public Implementation () .false. .false.), test_len: (Subroutine (SymbolTable 5 {a: (Variable 5 a Local () () Default (Integer 4 []) Source Public Required .false.)}) test_len [] [(= (Var 5 a) (ConstantInteger 0 (Integer 4 [])) ()) (= (Var 5 a) (ConstantInteger 4 (Integer 4 [])) ()) (= (Var 5 a) (ConstantInteger 14 (Integer 4 [])) ()) (= (Var 5 a) (ConstantInteger 3 (Integer 4 [])) ()) (= (Var 5 a) (ConstantInteger 2 (Integer 4 [])) ()) (= (Var 5 a) (ConstantInteger 3 (Integer 4 [])) ()) (= (Var 5 a) (ConstantInteger 2 (Integer 4 [])) ()) (= (Var 5 a) (ConstantInteger 3 (Integer 4 [])) ()) (= (Var 5 a) (ConstantInteger 3 (Integer 4 [])) ())] Source Public Implementation () .false. .false.), test_ord_chr: (Subroutine (SymbolTable 3 {a: (Variable 3 a Local () () Default (Integer 4 []) Source Public Required .false.), ord: (ExternalSymbol 3 ord 13 ord lpython_builtin [] ord Public), s: (Variable 3 s Local () () Default (Character 1 -2 () []) Source Public Required .false.)}) test_ord_chr [] [(= (Var 3 a) (FunctionCall 3 ord () [(ConstantString "5" (Character 1 1 () []))] [] (Integer 4 []) () ()) ()) (= (Var 3 s) (ConstantString "+" (Character 1 1 () [])) ())] Source Public Implementation () .false. .false.), test_str: (Subroutine (SymbolTable 7 {s: (Variable 7 s Local () () Default (Character 1 -2 () []) Source Public Required .false.)}) test_str [] [(= (Var 7 s) (ConstantString "" (Character 1 1 () [])) ()) (= (Var 7 s) (ConstantString "5" (Character 1 1 () [])) ()) (= (Var 7 s) (ConstantString "-4" (Character 1 1 () [])) ()) (= (Var 7 s) (ConstantString "5.600000" (Character 1 1 () [])) ()) (= (Var 7 s) (ConstantString "True" (Character 1 1 () [])) ()) (= (Var 7 s) (ConstantString "False" (Character 1 1 () [])) ()) (= (Var 7 s) (ConstantString "5346" (Character 1 1 () [])) ())] Source Public Implementation () .false. .false.)}) [])

tests/reference/asr-expr1-8df2d66.json

@@ -6,7 +6,7 @@
     "outfile": null,
     "outfile_hash": null,
     "stdout": "asr-expr1-8df2d66.stdout",
-    "stdout_hash": "f91e20cb7a51634aa2d7a0a405c291e3739bc0ab721ba7f22b1d5189",
+    "stdout_hash": "3386132d1619fd644c4ff66843325b74795f6565389176b4bf9968bc",
     "stderr": null,
     "stderr_hash": null,
     "returncode": 0